@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:400;src:url(../media/ibm-plex-mono-cyrillic-ext-400-normal.09jq5v9-1wf71.woff2)format("woff2"),url(../media/ibm-plex-mono-cyrillic-ext-400-normal.2iaubq2jy0rx3.woff)format("woff");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:400;src:url(../media/ibm-plex-mono-cyrillic-400-normal.0m1ahpdxrpokj.woff2)format("woff2"),url(../media/ibm-plex-mono-cyrillic-400-normal.2-z93d2j9-3s0.woff)format("woff");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:400;src:url(../media/ibm-plex-mono-vietnamese-400-normal.3a7fs2yw914a9.woff2)format("woff2"),url(../media/ibm-plex-mono-vietnamese-400-normal.2kzc8ichkozg5.woff)format("woff");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:400;src:url(../media/ibm-plex-mono-latin-ext-400-normal.1hjaitcyq2e2r.woff2)format("woff2"),url(../media/ibm-plex-mono-latin-ext-400-normal.0nrwft7nlo5oa.woff)format("woff");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:400;src:url(../media/ibm-plex-mono-latin-400-normal.3xdfs0-p_zi4c.woff2)format("woff2"),url(../media/ibm-plex-mono-latin-400-normal.2lhng2ntocry9.woff)format("woff");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
:root{--canvas:#f3f7fc;--canvas-strong:#e9f0fa;--surface:#fff;--surface-muted:#f8fafd;--ink:#14243a;--ink-soft:#31445d;--muted:#5f6d81;--muted-light:#66758b;--line:#dce5f0;--line-strong:#8293a8;--blue:#315cf5;--blue-dark:#2346ce;--blue-soft:#edf1ff;--cyan:#82d7f7;--cyan-soft:#e8f9ff;--amber:#f2b84b;--amber-soft:#fff5dc;--green:#167456;--green-soft:#e8f8f2;--red:#c73a4b;--red-soft:#fff0f2;--violet:#6c45c3;--violet-soft:#f1edff;--shadow-sm:0 8px 24px #1c345412;--shadow-md:0 20px 55px #1c34541c;--radius-sm:10px;--radius-md:16px;--radius-lg:24px;--font-body:"Noto Sans JP Variable", "Hiragino Sans", sans-serif;--font-display:"Space Grotesk Variable", "Noto Sans JP Variable", sans-serif;--font-mono:"IBM Plex Mono", monospace;--text-micro:12px;--text-small:13px;--text-body:16px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--canvas);color:var(--ink);font-family:var(--font-body);font-size:var(--text-body);-webkit-font-smoothing:antialiased;margin:0;line-height:1.7}button,input,textarea,select{color:inherit;font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer;min-height:44px}input:not([type=checkbox]):not([type=radio]),select,textarea{min-height:44px}button:disabled{cursor:not-allowed;opacity:.48}a{color:inherit;text-decoration:none}img,svg{display:block}h1,h2,h3,p{margin-top:0}::selection{background:var(--cyan);color:var(--ink)}:focus-visible{outline:3px solid var(--blue);outline-offset:3px}.sr-only{clip:rect(0, 0, 0, 0);clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.button{border:1px solid #0000;border-radius:12px;justify-content:center;align-items:center;gap:9px;min-height:46px;padding:0 20px;font-size:14px;font-weight:700;transition:transform .16s,box-shadow .16s,background .16s,border-color .16s;display:inline-flex}.button:hover:not(:disabled){transform:translateY(-1px)}.button.primary{background:var(--blue);color:#fff;box-shadow:0 8px 22px #315cf538}.button.primary:hover:not(:disabled){background:var(--blue-dark);box-shadow:0 12px 28px #315cf547}.button.secondary{background:var(--surface);border-color:var(--line-strong);color:var(--ink)}.button.ghost{border-color:var(--line-strong);color:var(--ink);background:0 0}.button.danger{background:var(--red);color:#fff}.button.ai-button{background:var(--ink);color:#fff}.button.large{min-height:54px;padding:0 25px}.button.small{min-height:44px;padding:0 15px;font-size:13px}.button.wide{width:100%}.text-button{color:var(--blue);background:0 0;border:0;align-items:center;gap:6px;min-height:44px;padding:6px;font-size:13px;font-weight:700;display:inline-flex}.text-button.danger{color:var(--red)}.inline-link{color:var(--blue);align-items:center;gap:8px;min-height:44px;font-size:13px;font-weight:700;display:inline-flex}.inline-link.light{color:#fff}.icon-button{background:var(--surface);border:1px solid var(--line-strong);border-radius:11px;justify-content:center;align-items:center;width:44px;height:44px;display:inline-flex;position:relative}.icon-button.small{border:0;width:44px;height:44px}.icon-button.is-active{background:var(--blue-soft);color:var(--blue);border-color:#315cf53d}.micro-label,.section-index,.section-kicker,.date-label,.lesson-label{color:var(--blue);font-family:var(--font-display);font-size:var(--text-micro);letter-spacing:.16em;text-transform:uppercase;font-weight:700}.micro-label.light,.section-index.light{color:var(--cyan)}.brand-mark{font-family:var(--font-display);letter-spacing:-.03em;white-space:nowrap;align-items:center;gap:10px;min-height:44px;font-size:17px;font-weight:600;display:inline-flex}.brand-mark b{font-weight:800}.brand-symbol{fill:url(#mesh-engine-brand-gradient) var(--blue);height:30px;stroke:url(#mesh-engine-brand-gradient) var(--blue);stroke-linecap:round;stroke-width:1px;width:30px}.brand-symbol path{fill:none}.brand-mark.is-inverse{color:#fff}.brand-mark.is-inverse .brand-symbol{fill:var(--cyan);filter:drop-shadow(0 0 3px #82d7f78c);stroke:var(--cyan)}.section-wrap{width:100%;max-width:1200px;margin:0 auto;padding-left:32px;padding-right:32px}.public-page{background:var(--surface);min-height:100vh}.public-header{-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);z-index:50;background:#ffffffdb;border-bottom:1px solid #dce5f0c2;position:sticky;top:0}.public-header-inner{grid-template-columns:1fr auto 1fr;align-items:center;max-width:1320px;min-height:72px;margin:0 auto;padding:0 32px;display:grid}.public-nav{align-items:center;gap:30px;display:flex}.public-nav a,.text-link{color:var(--ink-soft);align-items:center;min-height:44px;font-size:13px;font-weight:600;transition:color .16s;display:inline-flex}.public-nav a:hover,.text-link:hover{color:var(--blue)}.public-actions{justify-content:flex-end;align-items:center;gap:20px;display:flex}.hero-section{background:var(--canvas);grid-template-columns:minmax(0,1fr) minmax(500px,.92fr);min-height:730px;padding:82px max(5vw,32px) 76px;display:grid;position:relative;overflow:hidden}.hero-grid-bg{opacity:.72;pointer-events:none;background-image:linear-gradient(#315cf50f 1px,#0000 1px),linear-gradient(90deg,#315cf50f 1px,#0000 1px);background-size:48px 48px;position:absolute;inset:0;-webkit-mask-image:linear-gradient(90deg,#000,#0000 62%);mask-image:linear-gradient(90deg,#000,#0000 62%)}.hero-copy{z-index:1;align-self:center;max-width:660px;padding-left:max(0px,50vw - 660px);position:relative}.eyebrow{color:var(--blue);font-family:var(--font-display);font-size:var(--text-small);letter-spacing:.16em;align-items:center;gap:10px;margin-bottom:24px;font-weight:700;display:flex}.eyebrow span{background:var(--blue);border-radius:50%;width:7px;height:7px;box-shadow:0 0 0 5px #315cf51c}.hero-copy h1{letter-spacing:-.065em;margin-bottom:28px;font-size:clamp(44px,5vw,72px);font-weight:760;line-height:1.14}.hero-copy h1 em{color:var(--blue);font-style:normal;position:relative}.hero-copy h1 em:after{background:var(--cyan);content:"";opacity:.5;z-index:-1;width:99%;height:5px;position:absolute;bottom:3px;left:1%;transform:rotate(-1deg)}.hero-lead{color:var(--ink-soft);margin-bottom:32px;font-size:17px;line-height:2}.hero-actions{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.hero-actions.centered{justify-content:center}.hero-trust{color:var(--muted);flex-wrap:wrap;align-items:center;gap:22px;margin-top:23px;font-size:12px;display:flex}.hero-trust span{align-items:center;gap:6px;display:flex}.hero-trust svg{color:var(--green)}.hero-mesh-card{z-index:1;background:#ffffffeb;border:1px solid #c7d4e4e0;border-radius:26px;align-self:center;max-width:560px;margin-left:52px;padding:28px;position:relative;transform:rotate(1.2deg);box-shadow:0 35px 90px #1c345429}.hero-mesh-card:before{content:"";z-index:-1;border:1px solid #315cf526;border-radius:26px;position:absolute;inset:14px -18px -18px 14px}.mesh-card-top,.card-heading-row{justify-content:space-between;align-items:flex-start;display:flex}.mesh-card-top h2{letter-spacing:-.035em;margin:4px 0 0;font-size:19px}.live-pill{background:var(--green-soft);color:var(--green);font-family:var(--font-display);font-size:var(--text-micro);letter-spacing:.11em;border-radius:999px;align-items:center;gap:6px;padding:6px 9px;font-weight:700;display:flex}.live-pill span,.status-dot{background:var(--green);border-radius:50%;width:6px;height:6px;animation:2.2s ease-in-out infinite soft-pulse}.hero-side-label{color:var(--muted);font-family:var(--font-display);font-size:var(--text-micro);letter-spacing:.24em;transform-origin:100% 100%;position:absolute;bottom:58px;right:18px;transform:rotate(90deg)translate(100%)}.learning-mesh{min-height:285px;margin:28px 0 22px;position:relative}.mesh-rail{background:var(--line);width:2px;position:absolute;top:28px;bottom:26px;left:17px;overflow:hidden}.mesh-flow{background:linear-gradient(to bottom, transparent, var(--blue), var(--cyan), transparent);width:2px;height:82px;animation:2.8s ease-in-out infinite mesh-flow;display:block;position:absolute;top:-82px;left:0}.mesh-node-list{flex-direction:column;gap:8px;margin:0;padding:0;list-style:none;display:flex;position:relative}.mesh-node{border:1px solid #0000;border-radius:14px;grid-template-columns:36px 1fr auto;align-items:center;gap:14px;min-height:61px;padding:8px 13px 8px 0;display:grid;position:relative}.mesh-node.is-current{background:var(--blue-soft);border-color:#315cf52b;box-shadow:0 8px 20px #315cf514}.mesh-node.is-next{background:var(--surface-muted)}.mesh-dot{background:var(--surface);border:2px solid var(--line-strong);color:var(--muted);font-family:var(--font-mono);font-size:var(--text-micro);z-index:1;border-radius:50%;justify-content:center;align-items:center;width:36px;height:36px;display:inline-flex;position:relative}.is-complete .mesh-dot{background:var(--green);border-color:var(--green);color:#fff}.is-current .mesh-dot{background:var(--blue);border-color:var(--blue);color:#fff;box-shadow:0 0 0 5px #315cf51f}.mesh-node-copy{flex-direction:column;line-height:1.4;display:flex}.mesh-node-copy strong{font-size:13px}.mesh-node-copy small{color:var(--muted);font-size:var(--text-micro);margin-top:3px}.mesh-state{color:var(--blue);font-family:var(--font-display);font-size:var(--text-micro);letter-spacing:.12em;margin-bottom:1px;font-weight:700}.mesh-state.next{color:#8a5b00}.mesh-current-arrow{color:var(--blue)}.mesh-output-card{background:var(--ink);color:#fff;border-radius:14px;grid-template-columns:auto 1fr auto;align-items:center;gap:12px;padding:14px 16px;display:grid}.output-icon{color:var(--cyan);background:#82d7f729;border-radius:9px;justify-content:center;align-items:center;width:36px;height:36px;display:flex}.mesh-output-card div{flex-direction:column;display:flex}.mesh-output-card small{color:#9dadc1;font-size:var(--text-micro)}.mesh-output-card strong{font-size:12px}.proof-strip{background:var(--ink);color:#fff;grid-template-columns:repeat(3,auto) 1fr;align-items:center;min-height:112px;padding:22px max(6vw,40px);display:grid}.proof-strip>div{border-right:1px solid #ffffff24;flex-direction:column;align-items:baseline;min-width:130px;margin-right:34px;padding-right:34px;display:flex}.proof-strip strong{font-family:var(--font-display);letter-spacing:-.05em;font-size:27px}.proof-strip span{color:#9dadc1;font-size:var(--text-micro)}.proof-strip p{color:#b9c5d3;justify-self:end;margin:0}.proof-strip p b{color:var(--cyan)}.experience-section,.ai-feature-section,.pricing-section,.final-cta{padding-top:120px;padding-bottom:120px}.section-heading.split{grid-template-columns:1fr .8fr;align-items:end;gap:70px;margin-bottom:56px;display:grid}.section-heading h2,.demo-copy h2,.ai-feature-copy h2,.pricing-copy h2,.final-cta h2{letter-spacing:-.055em;margin:12px 0 0;font-size:clamp(34px,4vw,54px);line-height:1.3}.section-heading>p,.demo-copy>p,.ai-feature-copy>p,.pricing-copy>p{color:var(--muted);margin-bottom:2px;font-size:15px;line-height:2}.experience-grid{grid-template-columns:repeat(3,1fr);gap:16px;display:grid}.experience-card{border:1px solid var(--line);border-radius:18px;min-height:340px;padding:34px;transition:border-color .18s,transform .18s,box-shadow .18s;position:relative;overflow:hidden}.experience-card:hover{box-shadow:var(--shadow-md);border-color:#315cf54d;transform:translateY(-4px)}.experience-number{color:#8393a8;font-family:var(--font-display);letter-spacing:-.08em;font-size:84px;font-weight:700;line-height:1;position:absolute;top:14px;right:20px}.experience-icon{color:var(--blue);margin-bottom:62px}.experience-card h3{letter-spacing:-.035em;margin:10px 0 12px;font-size:20px}.experience-card p{color:var(--muted);font-size:13px;line-height:1.9}.product-demo-section{background:var(--ink);color:#fff;padding:110px 0;position:relative;overflow:hidden}.product-demo-section:after{content:"";background-image:radial-gradient(circle,#82d7f724 1px,#0000 1px);background-size:24px 24px;position:absolute;inset:0 0 0 58%;-webkit-mask-image:linear-gradient(90deg,#0000,#000);mask-image:linear-gradient(90deg,#0000,#000)}.product-demo-grid{z-index:1;grid-template-columns:.8fr 1.2fr;align-items:center;gap:90px;display:grid;position:relative}.demo-copy>p{color:#aebccc;margin:24px 0 30px}.curriculum-stack{flex-direction:column;gap:7px;display:flex}.curriculum-row{background:#ffffff0f;border:1px solid #ffffff17;border-radius:12px;grid-template-columns:34px minmax(180px,1fr) minmax(80px,.65fr) auto;align-items:center;gap:18px;min-height:76px;padding:10px 18px;display:grid}.curriculum-number{color:var(--cyan);font-family:var(--font-mono);font-size:12px}.curriculum-row div{flex-direction:column;display:flex}.curriculum-row small{color:#7f92a9;font-family:var(--font-display);font-size:var(--text-micro);letter-spacing:.12em}.curriculum-row strong{font-size:13px}.curriculum-line{background:#ffffff1a;height:2px}.curriculum-line i{background:linear-gradient(to right, var(--blue), var(--cyan));height:100%;display:block}.ai-feature-section{grid-template-columns:1.1fr .9fr;align-items:center;gap:100px;display:grid}.ai-feature-visual{min-height:500px;position:relative;overflow:clip}.ai-orbit{position:absolute;inset:0}.ai-orbit:before,.ai-orbit:after{content:"";border:1px solid #315cf51f;border-radius:50%;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.ai-orbit:before{width:450px;height:450px}.ai-orbit:after{width:330px;height:330px}.ai-orbit span{background:var(--blue);border:5px solid var(--surface);box-shadow:var(--shadow-sm);border-radius:50%;width:16px;height:16px;position:absolute}.ai-orbit span:first-child{top:38%;left:12%}.ai-orbit span:nth-child(2){background:var(--amber);top:26%;right:7%}.ai-orbit span:nth-child(3){bottom:12%;left:54%}.ai-demo-window{background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-md);border-radius:22px;width:88%;max-width:500px;padding:22px;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.ai-demo-window header,.ai-chat-header{border-bottom:1px solid var(--line);align-items:center;gap:11px;padding-bottom:16px;display:flex}.ai-avatar,.ai-large-icon{background:linear-gradient(135deg, var(--blue), #6687ff);color:#fff;border-radius:10px;justify-content:center;align-items:center;width:38px;height:38px;display:inline-flex}.ai-demo-window header div,.ai-chat-header div{flex-direction:column;display:flex}.ai-demo-window header strong,.ai-chat-header strong{font-size:12px}.ai-demo-window header small,.ai-chat-header small{color:var(--muted);font-size:var(--text-micro)}.demo-question{background:var(--blue);color:#fff;border-radius:14px 14px 3px;max-width:78%;margin:20px 0 16px auto;padding:12px 14px;font-size:12px}.demo-answer{background:var(--surface-muted);border:1px solid var(--line);font-size:var(--text-small);border-radius:3px 14px 14px;padding:15px}.demo-answer p{color:var(--ink-soft);margin-bottom:10px;line-height:1.8}.demo-answer span{background:var(--blue-soft);color:var(--blue);font-size:var(--text-micro);border-radius:6px;padding:4px 7px;display:inline-block}.demo-answer strong{border-top:1px solid var(--line);font-size:var(--text-small);margin-top:12px;padding-top:12px;display:block}.ai-feature-copy>p{margin:24px 0}.check-list{flex-direction:column;gap:12px;margin:0;padding:0;list-style:none;display:flex}.check-list li{align-items:center;gap:10px;font-size:13px;font-weight:600;display:flex}.check-list svg{color:var(--green)}.pricing-section{background:var(--canvas)}.pricing-grid{grid-template-columns:1fr .85fr;align-items:center;gap:120px;display:grid}.pricing-copy>p{max-width:510px;margin-top:24px}.price-card{background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-md);border-radius:22px;padding:36px;position:relative;overflow:hidden}.price-card-accent{background:linear-gradient(to right, var(--blue), var(--cyan));height:5px;position:absolute;inset:0 0 auto}.price-title{justify-content:space-between;align-items:center;display:flex}.price-title span{color:var(--blue);font-family:var(--font-display);font-size:var(--text-small);letter-spacing:.15em;font-weight:700}.price-title small{color:var(--muted)}.price-value{border-bottom:1px solid var(--line);align-items:baseline;margin:22px 0;padding-bottom:23px;display:flex}.price-value>span{font-family:var(--font-display);font-size:19px;font-weight:700}.price-value strong{font-family:var(--font-display);letter-spacing:-.06em;font-size:48px;line-height:1}.price-value small{color:var(--muted);margin-left:8px}.price-card ul{flex-direction:column;gap:12px;margin:0 0 28px;padding:0;list-style:none;display:flex}.price-card li{align-items:center;gap:9px;font-size:12px;display:flex}.price-card li svg{color:var(--green)}.price-note{color:var(--muted);font-size:var(--text-micro);text-align:center;margin-top:13px;display:block}.final-cta{text-align:center}.final-cta-symbol{color:var(--blue);justify-content:center;align-items:center;margin-bottom:28px;display:flex;position:relative}.final-cta-symbol svg:last-child{background:var(--amber-soft);color:#a66e00;border-radius:50%;margin-left:-6px;padding:5px}.final-cta h2{max-width:750px;margin:10px auto 32px}.public-footer{background:var(--ink);color:#fff;padding:52px 0}.footer-grid{grid-template-columns:1fr auto auto;align-items:center;gap:40px;display:grid}.footer-grid>div strong{font-family:var(--font-display)}.footer-grid p{color:#98a9bd;font-size:var(--text-small);margin:5px 0 0}.footer-grid nav{gap:22px;display:flex}.footer-grid nav a,.footer-grid>small{color:#98a9bd;font-size:var(--text-micro)}.footer-grid nav a{align-items:center;min-height:44px;display:inline-flex}@keyframes mesh-flow{0%{transform:translateY(0)}70%,to{transform:translateY(360px)}}@keyframes soft-pulse{0%,to{box-shadow:0 0 #1f9b7400}50%{box-shadow:0 0 0 5px #1f9b741f}}.sample-page{background:var(--canvas)}.sample-main{max-width:1280px;margin:0 auto;padding:30px 32px 100px}.sample-breadcrumb{color:var(--muted);font-size:var(--text-small);justify-content:space-between;align-items:center;margin-bottom:28px;display:flex}.sample-breadcrumb a{align-items:center;gap:7px;display:flex}.sample-hero{background:var(--ink);color:#fff;border-radius:22px;grid-template-columns:1fr .55fr;align-items:end;gap:70px;padding:54px;display:grid;position:relative;overflow:hidden}.sample-hero:after{content:"";background-image:radial-gradient(circle,#82d7f72b 1px,#0000 1px);background-size:22px 22px;position:absolute;inset:0 0 0 55%;-webkit-mask-image:linear-gradient(90deg,#0000,#000);mask-image:linear-gradient(90deg,#0000,#000)}.sample-hero>*{z-index:1;position:relative}.sample-hero h1{letter-spacing:-.06em;margin:10px 0 14px;font-size:clamp(38px,5vw,60px)}.sample-hero p{color:#b5c2d2;max-width:670px}.lesson-meta{color:var(--muted);font-size:var(--text-small);align-items:center;gap:18px;display:flex}.sample-hero .lesson-meta{color:#9eb0c5}.lesson-meta span{align-items:center;gap:6px;display:flex}.sample-goal{background:#ffffff14;border:1px solid #ffffff1f;border-radius:14px;flex-direction:column;padding:20px;display:flex}.sample-goal span{color:var(--cyan);font-size:var(--text-micro);margin-bottom:7px;font-weight:700}.sample-goal strong{font-size:13px}.sample-layout{grid-template-columns:minmax(0,1fr) 330px;align-items:start;gap:32px;margin-top:30px;display:grid}.lesson-article{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:58px clamp(30px,7vw,90px)}.article-toc{background:var(--surface-muted);border-left:3px solid var(--blue);flex-direction:column;gap:9px;margin-bottom:70px;padding:20px 22px;display:flex}.article-toc strong{margin-bottom:3px;font-size:12px}.article-toc a{color:var(--muted);font-size:var(--text-small)}.lesson-article>section,.lesson-content-section{border-bottom:1px solid var(--line);margin-bottom:60px;padding-bottom:60px}.article-index{color:var(--blue);font-family:var(--font-mono);font-size:var(--text-small)}.lesson-article section h2,.lesson-content-section h2{letter-spacing:-.045em;margin:8px 0 22px;font-size:28px}.lesson-article section>p,.lesson-content-section>p{color:var(--ink-soft);line-height:2.1}.lesson-article blockquote,.lesson-content-section blockquote{background:var(--blue-soft);color:var(--blue-dark);border:0;border-radius:12px;margin:28px 0;padding:25px 28px;font-size:16px;font-weight:650;line-height:1.9}.lesson-content-section blockquote strong{font-size:var(--text-micro);letter-spacing:.08em;margin-bottom:6px;display:block}.concept-flow{justify-content:space-between;align-items:center;margin:38px 0 10px;display:flex}.concept-flow>span{background:var(--surface);border:1px solid var(--line-strong);border-radius:12px;flex-direction:column;align-items:center;min-width:115px;padding:15px 10px;font-size:12px;font-weight:700;display:flex}.concept-flow>span small{color:var(--muted);font-size:var(--text-micro);font-weight:400}.concept-flow>i{background:var(--line-strong);width:26px;height:1px;position:relative}.concept-flow>i:after{border-right:1px solid var(--line-strong);border-top:1px solid var(--line-strong);content:"";width:5px;height:5px;position:absolute;top:-2px;right:0;transform:rotate(45deg)}.insight-box{background:var(--amber-soft);color:#765513;border:1px solid #f2b84b4d;border-radius:13px;align-items:flex-start;gap:15px;margin:28px 0;padding:20px;display:flex}.insight-box strong{font-size:13px}.insight-box p{font-size:var(--text-small);margin:5px 0 0;line-height:1.8}.resource-card{background:var(--surface);border:1px solid var(--line-strong);text-align:left;border-radius:13px;grid-template-columns:auto 1fr auto;align-items:center;gap:13px;width:100%;padding:16px;display:grid}.resource-card>span{background:var(--blue-soft);color:var(--blue);border-radius:9px;justify-content:center;align-items:center;width:40px;height:40px;display:flex}.resource-card div{flex-direction:column;display:flex}.resource-card strong{font-size:12px}.resource-card small{color:var(--muted);font-size:var(--text-micro)}.lesson-takeaway{border-top:2px solid var(--ink);align-items:flex-start;gap:14px;margin-top:34px;padding-top:18px;display:flex}.lesson-takeaway svg{color:var(--green)}.lesson-takeaway strong{font-size:12px}.lesson-takeaway p{color:var(--muted);font-size:var(--text-small);margin:4px 0 0}.sample-gate{background:var(--ink);color:#fff;text-align:center;border-radius:18px;flex-direction:column;align-items:center;padding:48px 32px;display:flex}.sample-gate h2{letter-spacing:-.045em;margin:10px 0;font-size:28px}.sample-gate p{color:#a9b8c9;margin-bottom:24px;font-size:12px}.aside-sticky{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:24px;position:sticky;top:100px}.aside-sticky .learning-mesh{transform-origin:0 0;width:106%;transform:scale(.94)}.auth-page{grid-template-columns:minmax(380px,.78fr) 1.22fr;min-height:100vh;display:grid}.auth-brand-panel{background:var(--ink);color:#fff;flex-direction:column;min-height:100vh;padding:42px clamp(34px,5vw,72px);display:flex;position:relative;overflow:hidden}.auth-brand-panel:after{content:"";background-image:linear-gradient(#82d7f714 1px,#0000 1px),linear-gradient(90deg,#82d7f714 1px,#0000 1px);background-size:38px 38px;position:absolute;inset:48% 0 0;-webkit-mask-image:linear-gradient(#0000,#000);mask-image:linear-gradient(#0000,#000)}.auth-brand-copy{z-index:1;margin:auto 0 58px;position:relative}.auth-brand-copy h1{letter-spacing:-.055em;margin:13px 0 18px;font-size:clamp(34px,4vw,52px);line-height:1.3}.auth-brand-copy p{color:#a9b8c9;max-width:430px;font-size:13px;line-height:2}.auth-route-preview{z-index:1;align-items:center;display:flex;position:relative}.auth-route-preview>div{text-align:center;flex-direction:column;align-items:center;display:flex}.auth-route-preview>div>span{color:#91a3b7;font-family:var(--font-mono);font-size:var(--text-micro);background:#263b55;border:1px solid #3b5069;border-radius:50%;justify-content:center;align-items:center;width:34px;height:34px;display:flex}.auth-route-preview>div>span.is-done{background:var(--green);border-color:var(--green);color:#fff}.auth-route-preview>div>span.is-current{background:var(--blue);border-color:var(--blue);color:#fff;box-shadow:0 0 0 5px #315cf52e}.auth-route-preview strong{color:#b9c6d4;font-size:var(--text-micro);white-space:nowrap;margin-top:8px;font-weight:500}.auth-route-preview>i{background:#3b5069;width:7vw;min-width:34px;height:1px;margin:0 8px 26px}.auth-security{color:#8fa1b7;font-size:var(--text-micro);z-index:1;border-top:1px solid #ffffff1a;align-items:center;gap:8px;margin-top:38px;padding-top:20px;display:flex;position:relative}.auth-form-panel{background:var(--surface);min-height:100vh;padding:40px clamp(36px,7vw,100px);position:relative}.auth-back{color:var(--muted);font-size:var(--text-small);align-items:center;gap:7px;min-height:44px;display:inline-flex}.auth-form-wrap{max-width:440px;margin:clamp(70px,14vh,140px) auto 40px}.auth-form-wrap>header h2{letter-spacing:-.05em;margin-bottom:8px;font-size:34px}.auth-form-wrap>header p{color:var(--muted);margin-bottom:32px;font-size:13px}.auth-form{flex-direction:column;gap:18px;display:flex}.auth-form>label,.checkout-form>label,.form-two-columns label{font-size:var(--text-small);flex-direction:column;gap:7px;font-weight:700;display:flex}.auth-form input:not([type=checkbox]),.checkout-form input:not([type=checkbox]){background:var(--surface);border:1px solid var(--line-strong);border-radius:11px;min-height:50px;padding:0 15px}.auth-form input:focus,.checkout-form input:focus{border-color:var(--blue);outline:none;box-shadow:0 0 0 3px #315cf51a}.auth-form input[aria-invalid=true]{border-color:var(--red)}.auth-form input[aria-invalid=true]:focus{box-shadow:0 0 0 3px #c73a4b1f}.auth-field-error{color:var(--red);font-size:var(--text-micro);font-weight:600;line-height:1.55;display:block}.auth-form-error{background:var(--red-soft);color:#9d2636;font-size:var(--text-small);border:1px solid #c73a4b3d;border-radius:10px;margin:0;padding:11px 13px;line-height:1.65}.auth-form-success{border:1px solid color-mix(in srgb, var(--green) 34%, transparent);background:var(--green-soft);color:var(--ink);border-radius:12px;margin:0;padding:12px 14px;font-size:.9rem;line-height:1.65}.label-row{justify-content:space-between;align-items:center;display:flex}.label-row small{color:var(--muted);font-size:var(--text-micro);font-weight:400}.label-row a{color:var(--blue);font-size:var(--text-micro)}.checkbox-row{min-height:44px;padding:8px 0;line-height:1.6;flex-direction:row!important;align-items:flex-start!important;gap:9px!important;font-weight:400!important;display:flex!important}.checkbox-row input{accent-color:var(--blue);margin-top:3px}.checkbox-row a{color:var(--blue);text-decoration:underline}.checkbox-row .auth-field-error{margin-top:5px}.auth-switch{color:var(--muted);font-size:var(--text-small);text-align:center;margin:24px 0 0}.auth-switch a{color:var(--blue);font-weight:700}.demo-hint,.auth-note{background:var(--amber-soft);color:#795815;font-size:var(--text-micro);border:1px solid #f2b84b42;border-radius:9px;flex-direction:column;margin-top:24px;padding:11px 13px;display:flex}.signup-benefits{color:var(--muted);font-size:var(--text-micro);justify-content:center;gap:13px;margin-top:18px;display:flex}.signup-benefits span{align-items:center;gap:4px;display:flex}.signup-benefits svg{color:var(--green)}.verify-card{background:var(--blue-soft);text-align:center;border:1px solid #315cf524;border-radius:13px;flex-direction:column;align-items:center;margin-bottom:18px;padding:25px;display:flex}.verify-card>span{background:var(--surface);color:var(--blue);border-radius:50%;justify-content:center;align-items:center;width:54px;height:54px;margin-bottom:14px;display:flex}.verify-card.is-error{background:var(--red-soft);border-color:#c73a4b2e}.verify-card.is-error>span{color:var(--red)}.verify-card p{margin-bottom:5px;font-size:12px}.verify-card small{color:var(--muted);font-size:var(--text-micro)}.verify-actions{flex-direction:column;gap:12px;display:flex}.centered-button{margin:13px auto 0;display:flex}.checkout-page{background:var(--canvas);min-height:100vh}.checkout-header{background:var(--surface);border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;min-height:72px;padding:0 max(4vw,28px);display:flex}.checkout-header>span{color:var(--muted);font-size:var(--text-micro);align-items:center;gap:6px;display:flex}.checkout-grid{grid-template-columns:1fr 380px;align-items:start;gap:64px;max-width:1080px;margin:0 auto;padding:60px 32px 100px;display:grid}.checkout-step{flex-direction:column;margin:44px 0 28px;display:flex}.checkout-step span{color:var(--blue);font-family:var(--font-display);font-size:var(--text-micro);letter-spacing:.14em;font-weight:700}.checkout-step strong{letter-spacing:-.04em;font-size:28px}.checkout-stepper{margin:32px 0 16px}.checkout-stepper ol{grid-template-columns:repeat(4,minmax(0,1fr));gap:0;margin:0;padding:0;list-style:none;display:grid}.checkout-stepper li{color:var(--muted);text-align:center;place-items:center;gap:7px;min-width:0;display:grid;position:relative}.checkout-stepper li:not(:last-child):after{background:var(--line-strong);content:"";height:2px;position:absolute;top:15px;left:calc(50% + 17px);right:calc(17px - 50%)}.checkout-stepper li>span{background:var(--surface-muted);border:1px solid var(--line-strong);font-family:var(--font-display);font-size:var(--text-micro);z-index:1;border-radius:50%;justify-content:center;align-items:center;width:32px;height:32px;display:flex;position:relative}.checkout-stepper li>strong{font-size:var(--text-micro);line-height:1.4}.checkout-stepper li.is-complete{color:var(--green)}.checkout-stepper li.is-complete>span{background:var(--green-soft);border-color:#1d8d5e38}.checkout-stepper li[aria-current=step]{color:var(--blue)}.checkout-stepper li[aria-current=step]>span{background:var(--blue);border-color:var(--blue);color:#fff}.checkout-preview-notice{background:var(--cyan-soft);color:var(--ink-soft);font-size:var(--text-micro);border:1px solid #315cf529;border-radius:11px;grid-template-columns:auto minmax(0,1fr);align-items:center;gap:2px 9px;margin:0 0 18px;padding:11px 13px;display:grid}.checkout-preview-notice>svg{color:var(--blue);grid-row:1/3}.checkout-preview-notice strong{color:var(--blue-dark)}.checkout-form{flex-direction:column;gap:18px;display:flex}.form-two-columns{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.form-two-columns>*,.form-two-columns input{width:100%;min-width:0}.input-with-icon{position:relative}.input-with-icon svg{color:var(--muted);position:absolute;top:16px;left:14px}.input-with-icon input{width:100%;padding-left:43px!important}.checkout-button{min-height:54px;margin-top:6px}.payment-security{color:var(--muted);font-size:var(--text-micro);text-align:center;justify-content:center;align-items:center;gap:7px;display:flex}.order-summary{background:var(--ink);color:#fff;border-radius:20px;padding:34px;position:sticky;top:110px;overflow:hidden}.order-preview-badge{color:#bfefff;font-size:var(--text-micro);z-index:1;background:#82d7f729;border:1px solid #82d7f747;border-radius:99px;width:fit-content;margin-top:8px;padding:5px 9px;font-weight:700;display:inline-flex;position:relative}.order-summary:after{content:"";background-image:radial-gradient(circle,#82d7f729 1px,#0000 1px);background-size:20px 20px;width:180px;height:180px;position:absolute;top:-20px;right:-30px;transform:rotate(9deg)}.order-summary>*{z-index:1;position:relative}.order-summary>.micro-label{color:var(--cyan)}.order-summary h1{font-family:var(--font-display);margin:10px 0 24px;font-size:28px;line-height:1.2}.order-price{align-items:baseline;gap:7px;display:flex}.order-price strong{font-family:var(--font-display);font-size:34px}.order-price span{color:#9dacc0;font-size:var(--text-micro)}.order-divider{border-top:1px solid #ffffff1f;margin:22px 0}.order-summary ul{flex-direction:column;gap:11px;margin:0;padding:0;list-style:none;display:flex}.order-summary li{color:#c7d1de;font-size:var(--text-micro);align-items:center;gap:8px;display:flex}.order-summary li svg{color:var(--cyan)}.order-summary dl{border-top:1px solid #ffffff1f;border-bottom:1px solid #ffffff1f;margin:24px 0 17px;padding:15px 0}.order-summary dl div{font-size:var(--text-micro);justify-content:space-between;display:flex}.order-summary dt{color:#9dacc0}.order-summary dd{margin:0}.order-summary>p{color:#8497ae;font-size:var(--text-micro);margin:0}.legal-page{background:var(--surface);min-height:100vh}.legal-page>header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;min-height:72px;padding:0 max(4vw,32px);display:flex}.legal-page>header>a:last-child{color:var(--muted);font-size:var(--text-small)}.legal-page article{max-width:760px;margin:0 auto;padding:80px 32px 120px}.legal-page article>span{color:var(--blue);font-family:var(--font-display);font-size:var(--text-micro);letter-spacing:.15em}.legal-page h1{letter-spacing:-.05em;margin:12px 0 30px;font-size:44px}.legal-page h2{border-top:1px solid var(--line);margin:42px 0 12px;padding-top:24px;font-size:18px}.legal-page article p{color:var(--ink-soft)}.legal-notice{background:var(--amber-soft);font-size:var(--text-small);border-radius:9px;padding:13px 15px;color:#795815!important}.app-frame{--app-sidebar-width:232px;min-height:100vh;padding-left:var(--app-sidebar-width)}.app-sidebar{background:var(--surface);border-right:1px solid var(--line);width:var(--app-sidebar-width);z-index:30;flex-direction:column;padding:27px 20px 20px;display:flex;position:fixed;top:0;bottom:0;left:0}.app-nav{flex-direction:column;gap:4px;margin-top:46px;display:flex}.nav-group-label{color:var(--muted-light);font-family:var(--font-display);font-size:var(--text-micro);letter-spacing:.16em;margin:0 10px 9px;font-weight:700}.app-nav a,.sidebar-bottom>a{color:var(--muted);border-radius:10px;align-items:center;gap:11px;min-height:44px;padding:0 11px;font-size:12px;font-weight:600;display:flex}.app-nav a:hover,.sidebar-bottom>a:hover{background:var(--surface-muted);color:var(--ink)}.app-nav a.is-active{background:var(--blue-soft);color:var(--blue)}.sidebar-bottom{border-top:1px solid var(--line);margin-top:auto;padding-top:12px}.member-mini{background:var(--surface-muted);border-radius:11px;align-items:center;gap:10px;margin-top:14px;padding:10px;display:flex}.member-avatar,.profile-large-avatar{background:var(--ink);color:#fff;font-family:var(--font-display);border-radius:9px;justify-content:center;align-items:center;width:34px;height:34px;display:flex}.member-mini>span:last-child{flex-direction:column;flex:1;min-width:0;display:flex}.member-mini strong{font-size:var(--text-micro);text-overflow:ellipsis;white-space:nowrap;display:block;overflow:hidden}.member-mini small{color:var(--muted);font-size:var(--text-micro);text-overflow:ellipsis;white-space:nowrap;display:block;overflow:hidden}.app-main{min-height:100vh}.mobile-app-nav{display:none}.member-page{max-width:1320px;margin:0 auto;padding:38px clamp(24px,4vw,56px) 90px}.member-page-header{justify-content:space-between;align-items:center;margin-bottom:30px;display:flex}.member-page-header h1{letter-spacing:-.045em;margin:4px 0 3px;font-size:30px}.member-page-header p{color:var(--muted);font-size:var(--text-small);margin:0}.date-label{font-size:var(--text-micro)}.header-actions{align-items:center;gap:10px;display:flex;position:relative}.notification-dot{background:var(--red);border:2px solid #fff;border-radius:50%;width:8px;height:8px;position:absolute;top:8px;right:8px}.notification-panel{background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-md);z-index:40;border-radius:13px;width:min(340px,100vw - 30px);padding:15px;position:absolute;top:54px;right:0}.notification-panel>div:first-child{flex-direction:column;margin-bottom:7px;display:flex}.notification-panel>div:first-child strong{font-size:15px}.notification-panel article{border-top:1px solid var(--line);grid-template-columns:auto 1fr;align-items:start;gap:9px;padding:12px 0;display:grid}.notification-panel article>div{flex-direction:column;display:flex}.notification-panel article strong{font-size:var(--text-micro)}.notification-panel article small{color:var(--muted);font-size:var(--text-micro)}.notification-type{background:var(--surface-muted);color:var(--muted);font-size:var(--text-micro);border-radius:6px;padding:4px 5px;font-weight:700}.notification-type.is-new{background:var(--blue-soft);color:var(--blue)}.notification-panel>.text-button{border-top:1px solid var(--line);justify-content:center;width:100%;padding-top:11px}.notification-panel>p{color:var(--muted);font-size:var(--text-micro);text-align:center;margin:15px 0 4px}.focus-banner{background:var(--ink);color:#fff;border-radius:14px;grid-template-columns:auto 1fr auto;align-items:center;gap:13px;margin-bottom:18px;padding:15px 18px;display:grid}.focus-icon{color:var(--cyan);background:#82d7f724;border-radius:9px;justify-content:center;align-items:center;width:39px;height:39px;display:flex}.focus-banner>div:nth-child(2){flex-direction:column;display:flex}.focus-banner span{color:#8295aa;font-family:var(--font-display);font-size:var(--text-micro);letter-spacing:.15em;font-weight:700}.focus-banner strong{font-size:var(--text-small)}.focus-banner .text-button{color:var(--cyan)}.dashboard-primary-grid,.dashboard-secondary-grid{grid-template-columns:minmax(0,1.55fr) minmax(270px,.65fr);gap:18px;margin-bottom:18px;display:grid}.continue-card,.week-stats-card,.route-card,.ai-prompt-card,.recent-learning,.progress-route-card,.outcome-list-card,.monthly-focus-card{background:var(--surface);border:1px solid var(--line);border-radius:17px;padding:23px;box-shadow:0 4px 14px #1c345408}.card-heading-row h2,.account-card h2,.admin-panel h2{letter-spacing:-.035em;margin:2px 0 0;font-size:16px}.progress-pill,.current-chip,.complete-chip,.recommend-reason,.locked-recommend,.subscription-status,.healthy-pill{background:var(--blue-soft);color:var(--blue);font-size:var(--text-micro);border-radius:999px;align-items:center;gap:4px;padding:5px 8px;font-weight:700;display:inline-flex}.continue-main{grid-template-columns:165px 1fr;align-items:center;gap:25px;margin-top:19px;display:grid}.lesson-visual{background:var(--ink);border-radius:14px;justify-content:center;align-items:center;height:155px;display:flex;position:relative;overflow:hidden}.visual-code{color:#fff;font-family:var(--font-display);letter-spacing:-.08em;z-index:2;font-size:54px;font-weight:700;position:relative}.visual-orbits i{border:1px solid #82d7f72e;border-radius:50%;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.visual-orbits i:first-child{width:90px;height:90px}.visual-orbits i:nth-child(2){width:135px;height:135px}.visual-orbits i:nth-child(3){width:190px;height:190px}.continue-copy>small,.next-lesson-list small{color:var(--blue);font-family:var(--font-display);font-size:var(--text-micro);letter-spacing:.12em;font-weight:700}.continue-copy h3{letter-spacing:-.04em;margin:4px 0 6px;font-size:21px}.continue-copy p{color:var(--muted);font-size:var(--text-micro);margin-bottom:11px}.continue-meta{color:var(--muted);font-size:var(--text-micro);gap:18px;margin-bottom:15px;display:flex}.continue-meta span{align-items:center;gap:5px;display:flex}.today-action-card{border-color:#315cf538;box-shadow:0 16px 42px #1c345414}.recommendation-note{background:var(--blue-soft);color:var(--ink-soft);font-size:var(--text-micro);border:1px solid #315cf524;border-radius:10px;align-items:flex-start;gap:9px;margin:12px 0;padding:10px 12px;line-height:1.65;display:flex}.recommendation-note>svg{color:var(--blue);flex:none;margin-top:2px}.recommendation-note>span{flex-direction:column;display:flex}.recommendation-note strong{color:var(--blue-dark);font-size:var(--text-micro)}.learning-record-card{flex-direction:column;display:flex}.learning-record-empty{text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;min-height:210px;padding:20px 5px;display:flex}.learning-record-empty>span{background:var(--surface-muted);color:var(--muted);border-radius:50%;justify-content:center;align-items:center;width:48px;height:48px;margin-bottom:12px;display:flex}.learning-record-empty>strong{font-size:14px}.learning-record-empty p,.learning-record-summary p{color:var(--muted);font-size:var(--text-micro);margin:6px 0 0;line-height:1.75}.learning-record-summary{gap:10px;margin-top:18px;display:grid}.learning-record-summary>div{background:var(--surface-muted);border-radius:10px;justify-content:space-between;align-items:center;padding:13px;display:flex}.learning-record-summary span{color:var(--muted);font-size:var(--text-micro)}.learning-record-summary strong{font-family:var(--font-display);font-size:18px}.week-stats-card .card-heading-row svg{color:var(--muted)}.week-stat-main{align-items:baseline;margin-top:17px;display:flex}.week-stat-main strong{font-family:var(--font-display);letter-spacing:-.05em;font-size:37px;line-height:1}.week-stat-main>span{color:var(--muted);font-size:var(--text-micro);margin-left:4px}.week-stat-main>small{background:var(--green-soft);color:var(--green);font-size:var(--text-micro);border-radius:999px;margin-left:auto;padding:4px 6px}.week-bars{grid-template-columns:repeat(7,1fr);align-items:end;gap:7px;height:95px;margin-top:14px;display:grid}.week-bars>div{flex-direction:column;justify-content:end;align-items:center;height:100%;display:flex}.week-bars i{background:#dfe7f1;border-radius:3px 3px 1px 1px;width:9px;min-height:4px;max-height:74px;display:block}.week-bars i.is-today{background:var(--blue)}.week-bars span{color:var(--muted-light);font-size:var(--text-micro);margin-top:5px}.streak-row{border-top:1px solid var(--line);color:#875c00;font-size:var(--text-micro);align-items:center;gap:7px;margin-top:10px;padding-top:12px;display:flex}.route-card .learning-mesh{min-height:245px;margin-bottom:0}.route-card .mesh-node{min-height:52px}.ai-prompt-card{color:#fff;background:linear-gradient(145deg,#172a44,#102036);flex-direction:column;display:flex;position:relative;overflow:hidden}.ai-prompt-card:after{content:"";border:1px solid #82d7f71f;border-radius:50%;width:260px;height:260px;position:absolute;top:-110px;right:-120px}.ai-large-icon{z-index:1;margin-bottom:22px;position:relative}.ai-prompt-card .section-kicker{color:var(--cyan)}.ai-prompt-card h2{letter-spacing:-.04em;margin:4px 0 8px;font-size:21px;line-height:1.45}.ai-prompt-card p{color:#a4b4c7;font-size:var(--text-micro)}.dashboard-ai-card{grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:18px;min-height:0;margin-bottom:20px;display:grid}.dashboard-ai-card .ai-large-icon{margin-bottom:0}.dashboard-ai-card h2{font-size:18px}.dashboard-ai-card p{margin:0}.quick-prompts{flex-direction:column;gap:7px;margin:11px 0 16px;display:flex}.quick-prompts a{color:#c4cfdb;font-size:var(--text-micro);border-bottom:1px solid #ffffff1a;justify-content:space-between;align-items:center;min-height:44px;padding:8px 0;display:flex}.recent-learning{margin-bottom:20px}.next-lesson-list{gap:8px;margin-top:17px;display:grid}.next-lesson-list>a{border-top:1px solid var(--line);grid-template-columns:42px 1fr auto auto;align-items:center;gap:17px;padding:15px 4px 7px;display:grid}.next-number{color:var(--muted-light);font-family:var(--font-mono);font-size:16px}.next-lesson-list div{flex-direction:column;display:flex}.next-lesson-list strong{font-size:12px}.next-lesson-list p{color:var(--muted);font-size:var(--text-micro);margin:2px 0 0}.recommend-reason{background:var(--amber-soft);color:#866000}.locked-recommend{background:var(--surface-muted);color:var(--muted)}.library-progress-mini{min-width:180px}.library-progress-mini>span,.library-progress-mini>strong{font-size:var(--text-micro)}.library-progress-mini>strong{float:right}.library-progress-mini>div{background:var(--line);clear:both;border-radius:999px;height:5px;margin-top:7px}.library-progress-mini i{background:var(--blue);border-radius:inherit;height:100%;display:block}.library-toolbar{align-items:center;gap:10px;display:flex}.search-field,.admin-table-toolbar label{background:var(--surface);border:1px solid var(--line-strong);color:var(--muted);border-radius:11px;flex:1;align-items:center;gap:9px;min-height:48px;padding:0 14px;display:flex}.search-field input,.admin-table-toolbar input{background:0 0;border:0;outline:0;width:100%;min-width:0}.filter-button{background:var(--surface);border:1px solid var(--line);font-size:var(--text-small);border-radius:11px;align-items:center;gap:7px;min-height:48px;padding:0 16px;font-weight:600;display:flex}.category-tabs{border-bottom:1px solid var(--line);gap:4px;margin:20px 0 14px;display:flex}.category-tabs button{color:var(--muted);font-size:var(--text-micro);background:0 0;border:0;border-bottom:2px solid #0000;min-width:72px;padding:10px 12px}.category-tabs button.is-active{border-bottom-color:var(--blue);color:var(--blue);font-weight:700}.library-result-header{justify-content:space-between;align-items:center;margin:17px 0;display:flex}.library-result-header strong{font-size:var(--text-small)}.library-result-header span{color:var(--muted);font-size:var(--text-micro)}.lesson-card-grid{grid-template-columns:repeat(3,1fr);gap:14px;display:grid}.lesson-card{background:var(--surface);border:1px solid var(--line);border-radius:15px;flex-direction:column;min-height:310px;padding:20px;transition:transform .16s,box-shadow .16s,border-color .16s;display:flex}.lesson-card:hover{box-shadow:var(--shadow-sm);border-color:#315cf540;transform:translateY(-2px)}.lesson-card.is-current{box-shadow:inset 0 3px 0 var(--blue);border-color:#315cf542}.lesson-card-top{justify-content:space-between;align-items:center;display:flex}.lesson-order{color:var(--muted-light);font-family:var(--font-mono);font-size:var(--text-micro)}.complete-chip{background:var(--green-soft);color:var(--green)}.lesson-card-icon{background:var(--blue-soft);color:var(--blue);border-radius:11px;justify-content:center;align-items:center;width:47px;height:47px;margin:22px 0 18px;display:flex}.lesson-card>small{color:var(--blue);font-family:var(--font-display);font-size:var(--text-micro);letter-spacing:.12em;font-weight:700}.lesson-card h2{letter-spacing:-.03em;margin:5px 0 7px;font-size:15px}.lesson-card>p{color:var(--muted);font-size:var(--text-micro);margin-bottom:12px}.lesson-tags{flex-wrap:wrap;gap:5px;display:flex}.lesson-tags span{background:var(--surface-muted);color:var(--muted);font-size:var(--text-micro);border-radius:6px;padding:3px 6px}.lesson-card footer{border-top:1px solid var(--line);font-size:var(--text-micro);justify-content:space-between;align-items:center;margin-top:auto;padding-top:12px;display:flex}.lesson-card footer span{color:var(--muted);align-items:center;gap:5px;display:flex}.lesson-card footer span:last-child{color:var(--blue);font-weight:700}.empty-state{background:var(--surface);border:1px dashed var(--line-strong);text-align:center;border-radius:15px;flex-direction:column;align-items:center;padding:80px 30px;display:flex}.empty-state svg{color:var(--muted-light)}.empty-state h2{margin:14px 0 4px;font-size:17px}.empty-state p{color:var(--muted);font-size:var(--text-micro)}.onboarding-page{grid-template-columns:1.15fr .85fr;min-height:100vh;display:grid}.onboarding-flow{place-self:center;width:100%;max-width:650px;padding:50px}.onboarding-assurance{background:var(--cyan-soft);color:var(--ink-soft);font-size:var(--text-micro);border:1px solid #315cf524;border-radius:12px;flex-wrap:wrap;align-items:center;gap:7px 14px;margin-bottom:22px;padding:11px 13px;display:flex}.onboarding-assurance strong{color:var(--blue-dark)}.onboarding-assurance span{position:relative}.onboarding-assurance span+span:before{color:var(--line-strong);content:"·";position:absolute;left:-9px}.onboarding-progress{grid-template-columns:1fr auto;align-items:center;gap:8px;margin-bottom:35px;display:grid}.onboarding-progress span,.onboarding-progress strong{color:var(--blue);font-family:var(--font-display);font-size:var(--text-micro);letter-spacing:.12em}.onboarding-progress>div{background:var(--line);border-radius:999px;grid-column:1/-1;height:5px}.onboarding-progress i{background:var(--blue);border-radius:inherit;height:100%;transition:width .26s;display:block}.onboarding-flow header h1,.onboarding-result h1{letter-spacing:-.05em;margin-bottom:7px;font-size:32px}.onboarding-flow header>p,.onboarding-result>p{color:var(--muted);font-size:var(--text-small)}.onboarding-options{grid-template-columns:repeat(2,1fr);gap:10px;margin:28px 0;display:grid}.onboarding-options button{background:var(--surface);border:1px solid var(--line);text-align:left;border-radius:13px;grid-template-columns:auto 1fr auto;align-items:center;gap:12px;min-height:88px;padding:13px;display:grid}.onboarding-options button.is-selected{background:var(--blue-soft);border-color:var(--blue)}.option-icon{background:var(--surface-muted);color:var(--blue);border-radius:9px;justify-content:center;align-items:center;width:39px;height:39px;display:flex}.onboarding-options button>span:nth-child(2){flex-direction:column;display:flex}.onboarding-options strong{font-size:var(--text-small)}.onboarding-options small{color:var(--muted);font-size:var(--text-micro)}.option-check{color:var(--blue)}.onboarding-flow>footer{justify-content:space-between;align-items:center;display:flex}.onboarding-side{background:var(--ink);color:#fff;flex-direction:column;justify-content:center;padding:70px;display:flex;position:relative;overflow:hidden}.onboarding-side:after{content:"";background-image:radial-gradient(circle,#82d7f726 1px,#0000 1px);background-size:22px 22px;position:absolute;inset:55% -20% -10% 10%;-webkit-mask-image:linear-gradient(#0000,#000);mask-image:linear-gradient(#0000,#000)}.onboarding-side h2{letter-spacing:-.05em;margin:12px 0 15px;font-size:31px;line-height:1.45}.onboarding-side p{color:#a6b6c8;font-size:var(--text-small);line-height:2}.onboarding-side-mesh{z-index:1;align-items:center;margin-top:50px;display:flex;position:relative}.onboarding-side-mesh span{background:var(--blue);border:4px solid #223750;border-radius:50%;width:28px;height:28px}.onboarding-side-mesh span:last-child{background:var(--amber)}.onboarding-side-mesh i{background:linear-gradient(to right, var(--blue), var(--cyan));width:82px;height:2px}.onboarding-result{text-align:center;flex-direction:column;align-items:center;max-width:580px;margin:auto;padding:60px 30px;display:flex}.result-check{background:var(--green-soft);color:var(--green);border-radius:50%;justify-content:center;align-items:center;width:70px;height:70px;margin-bottom:22px;display:flex}.onboarding-result ol{background:var(--surface);border:1px solid var(--line);text-align:left;border-radius:14px;width:100%;margin:25px 0;padding:7px 18px;list-style:none}.onboarding-result li{border-bottom:1px solid var(--line);grid-template-columns:30px 1fr;align-items:center;gap:13px;padding:13px 0;display:grid}.onboarding-result li:last-child{border-bottom:0}.onboarding-result li>span{color:var(--blue);font-family:var(--font-mono);font-size:var(--text-micro)}.onboarding-result li div{flex-direction:column;display:flex}.onboarding-result li strong{font-size:var(--text-small)}.onboarding-result li small{color:var(--muted);font-size:var(--text-micro)}.lesson-page{background:var(--canvas);min-height:100vh}.lesson-topbar{border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);z-index:20;background:#ffffffeb;grid-template-columns:1fr auto 1fr;align-items:center;min-height:62px;padding:0 22px;display:grid;position:sticky;top:0}.lesson-topbar>a{color:var(--muted);font-size:var(--text-micro);align-items:center;gap:6px;min-height:44px;display:flex}.lesson-topbar>div{color:var(--muted);font-family:var(--font-display);font-size:var(--text-micro);letter-spacing:.08em;align-items:center;gap:9px;display:flex}.lesson-topbar>div i{background:var(--line-strong);width:35px;height:1px}.lesson-topbar>button{justify-self:end}.lesson-workspace{grid-template-columns:minmax(0,1fr) 320px;align-items:start;max-width:1480px;margin:0 auto;display:grid}.member-lesson-article{background:var(--surface);border-left:1px solid var(--line);border-right:1px solid var(--line);min-width:0;padding:55px clamp(30px,5vw,76px) 80px}.member-lesson-hero{border-bottom:1px solid var(--line);margin-bottom:27px;padding-bottom:32px}.member-lesson-hero h1{letter-spacing:-.06em;text-wrap:balance;margin:8px 0 12px;font-size:clamp(34px,4vw,49px)}.member-lesson-hero>p{color:var(--ink-soft);max-width:680px;font-size:13px;line-height:1.9}.lesson-objectives{background:var(--blue-soft);border:1px solid #315cf524;border-radius:13px;grid-template-columns:auto 1fr;align-items:center;gap:13px;margin-bottom:24px;padding:17px;display:grid}.objective-icon{background:var(--surface);color:var(--blue);border-radius:9px;justify-content:center;align-items:center;width:41px;height:41px;display:flex}.lesson-objectives>div:last-child{flex-direction:column;display:flex}.lesson-objectives span{color:var(--blue);font-size:var(--text-micro);font-weight:700}.lesson-objectives strong{font-size:var(--text-small)}.member-lesson-toc{border-bottom:1px solid var(--line);border-top:1px solid var(--line);white-space:nowrap;align-items:center;gap:20px;margin-bottom:55px;padding:14px 0;display:flex;overflow-x:auto}.member-lesson-toc span,.member-lesson-toc a{color:var(--muted);font-size:var(--text-micro);align-items:center;gap:5px;display:flex}.member-lesson-toc a{min-height:44px}.member-lesson-toc span{color:var(--ink);font-weight:700}.member-flow{background:var(--surface-muted);border-radius:14px;padding:20px}.example-comparison{grid-template-columns:1fr auto 1fr;align-items:center;gap:13px;margin-top:30px;display:grid}.example-comparison>div{border:1px solid var(--line);border-radius:11px;min-height:110px;padding:15px}.example-comparison>div:last-child{background:var(--green-soft);border-color:#1f9b7433}.example-comparison span{color:var(--muted);font-family:var(--font-display);font-size:var(--text-micro);letter-spacing:.12em;font-weight:700}.example-comparison p{font-size:var(--text-small);margin:7px 0 3px;font-weight:700}.example-comparison small{color:var(--muted);font-size:var(--text-micro)}.quiz-section{border-bottom:1px solid var(--line);margin-bottom:36px;padding-bottom:55px}.quiz-section-heading{margin-bottom:24px}.quiz-section-heading h2{letter-spacing:-.04em;margin:5px 0;font-size:26px}.quiz-section-heading p{color:var(--muted);font-size:var(--text-micro);margin-bottom:13px}.quiz-card{background:var(--surface-muted);border:1px solid var(--line);border-radius:15px;padding:23px}.quiz-card h3{margin:6px 0 17px;font-size:15px}.quiz-card fieldset{border:0;flex-direction:column;gap:7px;margin:0 0 16px;padding:0;display:flex}.quiz-choice{background:var(--surface);border:1px solid var(--line);cursor:pointer;border-radius:10px;grid-template-columns:auto 1fr;align-items:center;gap:10px;min-height:48px;padding:7px 10px;display:grid}.quiz-choice.is-selected{border-color:var(--blue);box-shadow:0 0 0 2px #315cf514}.quiz-choice:focus-within{border-color:var(--blue);outline:2px solid #0000;box-shadow:0 0 0 3px #315cf53d}.quiz-choice input{opacity:0;width:1px;height:1px;position:absolute}.choice-index{background:var(--surface-muted);border:1px solid var(--line);font-family:var(--font-mono);font-size:var(--text-micro);border-radius:7px;justify-content:center;align-items:center;width:30px;height:30px;display:flex}.is-selected .choice-index{background:var(--blue);border-color:var(--blue);color:#fff}.quiz-choice>span:last-child{font-size:14px;line-height:1.55}.quiz-feedback{background:var(--green-soft);color:var(--green);border:1px solid #1f9b7438;border-radius:11px;grid-template-columns:auto 1fr auto;align-items:flex-start;gap:10px;padding:14px;display:grid}.quiz-feedback.is-wrong{background:var(--amber-soft);color:#8a620f;border-color:#f2b84b47}.quiz-feedback strong{font-size:var(--text-small)}.quiz-feedback p{color:var(--ink-soft);font-size:var(--text-micro);margin:3px 0 0}.lesson-footer{justify-content:space-between;align-items:center;display:flex}.lesson-footer>div{flex-direction:column;display:flex}.lesson-footer small{color:var(--blue);font-family:var(--font-display);font-size:var(--text-micro);letter-spacing:.12em;font-weight:700}.lesson-footer strong{font-size:13px}.lesson-footer span{color:var(--muted);font-size:var(--text-micro)}.ai-chat{background:var(--surface);border:1px solid var(--line);border-radius:16px;flex-direction:column;height:100%;min-height:0;padding:18px;display:flex;overflow:hidden}.ai-chat-header small{align-items:center;gap:5px;display:flex}.ai-context{background:var(--blue-soft);color:var(--blue);font-size:var(--text-micro);border-radius:8px;align-items:center;gap:6px;margin:12px 0;padding:8px;display:flex}.ai-messages{flex-direction:column;flex:1;align-self:center;gap:13px;width:100%;max-width:800px;min-height:0;padding:3px 2px 13px;display:flex;overflow-y:auto}.ai-message{align-items:flex-start;gap:8px;display:flex}.ai-message.user{flex-direction:row-reverse}.message-avatar{background:var(--blue-soft);color:var(--blue);border-radius:7px;flex:none;justify-content:center;align-items:center;width:28px;height:28px;display:flex}.ai-message.user .message-avatar{background:var(--ink);color:#fff}.ai-message>div{min-width:0;max-width:calc(100% - 38px)}.ai-message p{color:var(--ink-soft);overflow-wrap:anywhere;margin:0}.ai-message.assistant>div{flex:1}.ai-message.assistant .ai-message-body{background:0 0;border:0}.ai-message-body{color:var(--ink-soft);overflow-wrap:anywhere;min-width:0}.ai-message-body p{background:0 0;border:0;border-radius:0;padding:0;font-size:16px;line-height:1.85}.ai-message-body h4{color:var(--ink);margin:24px 0 8px;font-size:16px;line-height:1.55}.ai-message-body h4:first-child{margin-top:0}.ai-message-body ul{gap:8px;margin:9px 0 0;padding-left:1.4em;font-size:16px;line-height:1.8;display:grid}.ai-message.user>div{max-width:min(78%,620px)}.ai-message.user p{background:var(--blue-soft);color:var(--ink);border:1px solid #315cf524;border-radius:15px 5px 15px 15px;padding:10px 13px;font-size:15px;line-height:1.75}.ai-chat-empty{background:linear-gradient(135deg, var(--blue-soft), var(--surface));color:var(--ink-soft);border:1px solid #315cf529;border-radius:12px;padding:13px}.ai-chat-empty strong{color:var(--ink);font-size:var(--text-small)}.ai-chat-empty p{font-size:var(--text-micro);margin:5px 0 0;line-height:1.75}.ai-chat-readonly-empty{background:var(--amber-soft);border-color:#f2b84b47}.ai-chat-readonly-empty strong{color:#715100}.ai-source{display:block}.ai-grounding-note{background:var(--amber-soft);color:#715100;font-size:var(--text-micro);border-radius:7px;margin-top:6px;padding:7px 9px;display:block}.citation-chip{background:var(--blue-soft);color:var(--blue);font-size:var(--text-micro);text-align:left;border:0;border-radius:6px;margin-top:5px;padding:5px 7px}.citation-detail{background:var(--surface);border-left:2px solid var(--blue);color:var(--muted);font-size:var(--text-micro);gap:8px;margin-top:6px;padding:7px 9px;line-height:1.7;list-style:none;display:grid}.citation-detail li{gap:2px;min-width:0;display:grid}.citation-detail li strong{color:var(--ink);font-size:13px}.citation-detail li span{overflow-wrap:anywhere;font-size:13px;line-height:1.7}.ai-feedback-actions{align-items:center;gap:5px;margin-top:7px;display:flex}.ai-feedback-actions button{background:var(--surface);border:1px solid var(--line);color:var(--muted);border-radius:8px;justify-content:center;align-items:center;width:44px;min-width:44px;height:44px;min-height:44px;display:inline-flex}.ai-feedback-actions button:hover{border-color:var(--blue);color:var(--blue)}.ai-feedback-form{background:var(--surface-muted);border:1px solid var(--line);border-radius:9px;gap:8px;margin-top:8px;padding:9px;display:grid}.ai-feedback-form label{color:var(--ink-soft);font-size:var(--text-micro);gap:5px;display:grid}.ai-feedback-form textarea{border:1px solid var(--line-strong);font:inherit;resize:vertical;border-radius:7px;min-height:58px;padding:7px}.ai-feedback-form>div{justify-content:flex-end;gap:7px;display:flex}.ai-feedback-form .button{min-height:44px;padding:7px 11px}.ai-feedback-form button{min-height:44px}.ai-feedback-form fieldset{border:0;min-width:0;margin:0;padding:0}.ai-feedback-form legend{color:var(--ink-soft);font-size:var(--text-micro);margin-bottom:7px;font-weight:700}.ai-feedback-reasons{flex-wrap:wrap;gap:6px;display:flex}.ai-feedback-reasons button{background:var(--surface);border:1px solid var(--line-strong);color:var(--ink-soft);font-size:var(--text-micro);border-radius:999px;min-height:44px;padding:7px 10px}.ai-feedback-reasons button[aria-pressed=true]{background:var(--blue-soft);border-color:var(--blue);color:var(--blue);font-weight:700}.ai-feedback-status{color:var(--green);font-size:var(--text-micro);margin-top:6px;display:block}.ai-improve-answer{align-items:center;gap:6px;min-height:44px;margin-top:7px;display:inline-flex}.ai-thinking{color:var(--muted);font-size:var(--text-micro);align-items:center;gap:3px;margin-left:38px;display:flex}.ai-thinking span{background:var(--blue);border-radius:50%;width:4px;height:4px;animation:1.1s ease-in-out infinite thinking}.ai-thinking span:nth-child(2){animation-delay:.12s}.ai-thinking span:nth-child(3){margin-right:5px;animation-delay:.24s}.ai-stop-button{color:var(--muted);font-size:var(--text-micro);background:0 0;border:0;align-items:center;gap:4px;margin-left:8px;padding:4px;display:inline-flex}.ai-error-state,.ai-limit-state{background:var(--red-soft);color:var(--red);font-size:var(--text-micro);border:1px solid #c73a4b2e;border-radius:10px;grid-template-columns:auto 1fr auto;align-items:flex-start;gap:9px;padding:11px;display:grid}.ai-starter-prompts{align-self:center;width:100%;max-width:560px;margin:clamp(24px,8vh,74px) auto 0}.ai-starter-prompts>span{color:var(--muted);font-size:var(--text-micro);justify-content:center;align-items:center;gap:7px;margin-bottom:10px;font-weight:700;display:flex}.ai-starter-prompts>span svg{color:var(--violet)}.ai-starter-prompts>div{grid-template-columns:repeat(3,1fr);gap:8px;display:grid}.ai-starter-prompts button{background:var(--surface);border:1px solid var(--line-strong);color:var(--ink-soft);font-size:var(--text-micro);text-align:left;border-radius:10px;min-height:58px;padding:9px}.ai-starter-prompts button:hover{background:var(--blue-soft);color:var(--blue);border-color:#315cf53d}.ai-limit-state{background:var(--amber-soft);color:#715100;border-color:#f2b84b47;grid-template-columns:auto 1fr}.ai-error-state>div,.ai-limit-state>div{flex-direction:column;display:flex}.ai-error-state span,.ai-limit-state span{color:var(--ink-soft);font-size:var(--text-micro)}.ai-composer{background:var(--surface);border:1px solid var(--line-strong);border-radius:20px;flex:none;grid-template-columns:1fr auto;align-self:center;width:100%;max-width:800px;padding:9px;transition:border-color .16s,box-shadow .16s;display:grid;box-shadow:0 12px 30px #14243a1c}.ai-composer:focus-within{border-color:var(--blue);box-shadow:0 0 0 3px #315cf529,0 14px 34px #14243a21}.ai-composer-context{scrollbar-width:thin;grid-column:1/-1;gap:6px;min-width:0;padding:1px 1px 7px;display:flex;overflow-x:auto}.ai-composer-context span{background:var(--surface-muted);border:1px solid var(--line);color:var(--muted);text-overflow:ellipsis;white-space:nowrap;border-radius:999px;flex:none;max-width:250px;padding:5px 8px;font-size:12px;line-height:1.4;overflow:hidden}.ai-composer textarea{resize:none;background:0 0;border:0;outline:0;min-height:44px;font-size:16px;line-height:1.6}.ai-composer textarea:disabled{color:var(--muted);cursor:not-allowed}.send-button{background:var(--blue);color:#fff;border:0;border-radius:8px;justify-content:center;align-self:end;align-items:center;width:44px;height:44px;display:flex}.ai-disclaimer{color:var(--muted-light);font-size:var(--text-micro);text-align:center;flex:none;align-self:center;width:100%;max-width:800px;margin-top:7px}.ai-readonly-note{background:var(--amber-soft);color:#715100;border:1px solid #f2b84b47;border-radius:10px;flex:none;align-self:center;width:100%;max-width:800px;margin:0 0 8px;padding:8px 10px;font-size:13px;line-height:1.6}.ai-open-work-view{background:var(--violet-soft);color:var(--violet);border:1px solid #6c45c32e;border-radius:10px;justify-content:center;align-items:center;min-height:44px;margin-top:9px;padding:8px 12px;font-weight:700;display:inline-flex}.ai-page{box-sizing:border-box;flex-direction:column;height:100dvh;min-height:0;padding-top:24px;padding-bottom:24px;display:flex}.ai-page-grid{flex:auto;grid-template-columns:minmax(0,1fr);gap:14px;height:auto;min-height:0;display:grid}.ai-page-grid.ai-page-grid-focused{grid-template-columns:minmax(0,1fr);width:100%}.ai-page-grid.ai-page-grid-focused.is-work-view-open{grid-template-columns:minmax(0,1fr) minmax(320px,420px)}.ai-work-view-desktop{overscroll-behavior:contain;min-width:0;min-height:0;overflow-y:auto}.ai-work-view-desktop>aside{min-height:100%}.ai-work-view-modal-layer{z-index:190;position:fixed;inset:0}.ai-work-view-modal-backdrop{background:#14243a6b;border:0;width:100%;min-height:0;padding:0;position:fixed;inset:0}.ai-work-view-modal-dialog{background:var(--canvas);overscroll-behavior:contain;z-index:1;width:min(520px,100vw);max-width:100vw;position:fixed;top:0;bottom:0;right:0;overflow-y:auto;box-shadow:-16px 0 42px #14243a2e}.ai-work-view-modal-dialog>aside{min-height:100%}.ai-work-view-modal-dialog.is-mobile{box-shadow:none;width:auto;left:0}.ai-workspace-focus{flex-direction:column;flex:auto;min-width:0;min-height:0;display:flex}.ai-workspace-toolbar{background:var(--surface);border:1px solid var(--line);border-radius:12px;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:10px;margin-bottom:10px;padding:7px;display:grid}.ai-workspace-toolbar>strong{font-family:var(--font-display);text-align:center}.ai-workspace-toolbar .button{min-height:44px}@media (min-width:821px){.ai-workspace-toolbar{grid-template-columns:minmax(0,1fr) auto minmax(0,1fr)}.ai-workspace-toolbar>strong{grid-column:2}.ai-workspace-toolbar .ai-new-conversation{grid-column:3;justify-self:end}.ai-history-trigger{background:var(--surface);border-color:var(--line-strong);height:44px;left:calc(var(--app-sidebar-width) - 20px);z-index:40;border-radius:12px;gap:0;width:44px;padding:0;position:fixed;top:24px;box-shadow:0 8px 24px #14243a1a}}.conversation-drawer-layer{z-index:200;position:fixed;inset:0}.conversation-drawer-backdrop{background:#14243a6b;border:0;width:100%;min-height:0;padding:0;position:fixed;inset:0}.conversation-drawer{background:var(--surface);box-shadow:var(--shadow-md);z-index:1;width:min(360px,100vw);max-width:100vw;height:100dvh;position:fixed;top:0;left:0;overflow:hidden}.conversation-drawer-header{background:var(--surface);border-bottom:1px solid var(--line);z-index:2;justify-content:space-between;align-items:center;min-height:64px;padding:9px 12px;display:flex;position:absolute;top:0;left:0;right:0}.conversation-drawer-header>strong{font-family:var(--font-display)}.conversation-drawer-header button{background:var(--surface-muted);border:1px solid var(--line-strong);border-radius:10px;flex:0 0 44px;justify-content:center;align-items:center;width:44px;height:44px;padding:0;display:flex}.conversation-drawer .conversation-sidebar{overscroll-behavior:contain;border:0;border-radius:0;width:100%;height:100%;padding:80px 16px 24px;display:block}@media (max-width:820px){.ai-page-grid.ai-page-grid-focused.is-work-view-open{grid-template-columns:minmax(0,1fr)}.ai-work-view-modal-dialog.is-mobile{padding:8px;padding-bottom:max(8px, env(safe-area-inset-bottom));padding-left:max(8px, env(safe-area-inset-left));padding-right:max(8px, env(safe-area-inset-right));padding-top:max(8px, env(safe-area-inset-top))}.ai-work-view-modal-dialog.is-mobile>aside{min-height:100%}}@media (max-width:520px){.ai-workspace-toolbar{grid-template-columns:44px minmax(0,1fr) 44px;gap:6px;padding:6px}.ai-workspace-toolbar>strong{font-size:var(--text-small)}.ai-workspace-toolbar .ai-history-trigger,.ai-workspace-toolbar .ai-new-conversation{gap:0;width:44px;padding:0}.ai-workspace-toolbar .ai-new-conversation .ai-toolbar-label{display:none}}.conversation-sidebar{background:var(--surface);border:1px solid var(--line);border-radius:15px;min-height:0;padding:15px;overflow-y:auto}.conversation-group{flex-direction:column;margin-top:22px;display:flex}.conversation-group>span{color:var(--muted-light);font-family:var(--font-display);font-size:var(--text-micro);letter-spacing:.13em;margin:0 7px 7px}.conversation-group button{text-align:left;background:0 0;border:0;border-radius:8px;flex-direction:column;padding:9px;display:flex}.conversation-group button.is-active{background:var(--blue-soft)}.conversation-group strong{font-size:var(--text-micro)}.conversation-group small{color:var(--muted);font-size:var(--text-micro)}.conversation-row{position:relative}.conversation-row>button:first-child{width:100%;padding-right:50px}.conversation-row .conversation-delete{color:var(--muted);justify-content:center;align-items:center;width:44px;height:44px;padding:0;display:flex;position:absolute;top:50%;right:0;transform:translateY(-50%)}.conversation-delete-confirm{background:var(--surface-muted);border:1px solid var(--line-strong);border-radius:10px;grid-template-columns:1fr 1fr;gap:7px;margin:4px 2px 10px;padding:10px;display:grid}.conversation-delete-confirm span{color:var(--ink-soft);font-size:var(--text-micro);grid-column:1/-1}.conversation-group .conversation-delete-confirm button{border:1px solid var(--line-strong);text-align:center;justify-content:center;align-items:center;min-height:44px;padding:7px 8px}.conversation-group .conversation-delete-confirm button:first-of-type{background:var(--red-soft);color:var(--red);border-color:#c73a4b47}.conversation-empty,.conversation-error{color:var(--muted);font-size:var(--text-micro);margin:18px 7px 0;line-height:1.7}.conversation-error{color:var(--red)}.ai-full-panel{background:var(--surface);border:1px solid var(--line);border-radius:16px;flex-direction:column;min-height:0;padding:0;display:flex;overflow:hidden}.ai-page-context{border-bottom:1px solid var(--line);flex:none;grid-template-columns:minmax(280px,1.6fr) minmax(140px,.7fr) minmax(140px,.7fr);display:grid;overflow:hidden}.ai-context-segment{color:var(--ink);grid-template-columns:auto minmax(0,1fr);align-items:center;gap:10px;min-width:0;min-height:64px;padding:9px 13px;display:grid}.ai-context-segment+.ai-context-segment{border-left:1px solid var(--line)}.ai-context-segment>svg{color:var(--blue);flex:none}.ai-context-segment>div,.ai-context-segment>span{flex-direction:column;min-width:0;display:flex}.ai-context-segment small{color:var(--muted);font-size:12px;font-weight:700}.ai-context-segment strong{text-overflow:ellipsis;white-space:nowrap;font-size:13px;overflow:hidden}.ai-context-lesson{grid-template-columns:auto minmax(0,1fr) auto}.ai-context-link{transition:background .15s,color .15s}.ai-context-link:hover{background:var(--blue-soft);color:var(--blue-dark)}.ai-context-button{color:inherit;font:inherit;text-align:left;background:0 0;border:0;width:100%}.ai-context-disabled{background:var(--surface-muted);color:var(--muted)}.ai-page-context em{color:var(--blue);margin-top:2px;font-size:12px;font-style:normal}.ai-context-selector{min-width:0}.ai-context-selector select{background:var(--surface-muted);border:1px solid var(--line-strong);color:var(--blue-dark);font-size:var(--text-micro);border-radius:7px;max-width:190px;min-height:44px;padding:8px 10px}.ai-full-panel .ai-chat{border:0;border-radius:0;height:100%;min-height:0}.ai-full-panel .ai-chat-header,.ai-full-panel .ai-context{display:none}.ai-workspace-status,.ai-workspace-error,.ai-workspace-empty{color:var(--muted);text-align:center;flex:1;justify-content:center;align-items:center;gap:10px;min-height:260px;padding:28px;display:flex}.ai-workspace-status svg{animation:.9s linear infinite ai-workspace-spin}.ai-workspace-error{background:var(--red-soft);color:var(--red);flex-wrap:wrap;align-content:center}.ai-workspace-error>div,.ai-workspace-empty{flex-direction:column}.ai-workspace-error>div{text-align:left;display:flex}.ai-workspace-error span,.ai-workspace-empty span{color:var(--muted);font-size:var(--text-micro)}.ai-workspace-error .button{min-height:44px}.ai-workspace-empty{background:var(--surface);border:1px solid var(--line);color:var(--ink);border-radius:16px}@media (max-width:520px){.ai-page-context{grid-template-columns:repeat(2,minmax(0,1fr));overflow:visible}.ai-context-segment{width:100%;min-width:0}.ai-context-lesson{grid-column:1/-1}.ai-context-link{min-height:52px;padding-top:6px;padding-bottom:6px}.ai-context-segment+.ai-context-segment{border-left:0;border-top:1px solid var(--line)}.ai-context-lesson{grid-template-columns:auto minmax(0,1fr)}.ai-context-selector{grid-column:1/-1;width:100%}.ai-context-selector select{width:100%;max-width:none}}@keyframes ai-workspace-spin{to{transform:rotate(360deg)}}@keyframes thinking{0%,80%,to{opacity:.3;transform:translateY(0)}40%{opacity:1;transform:translateY(-3px)}}.progress-stat-grid{grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:17px;display:grid}.progress-stat-grid article{background:var(--surface);border:1px solid var(--line);border-radius:14px;grid-template-columns:auto 1fr;align-items:center;gap:11px;min-height:100px;padding:16px;display:grid}.progress-stat-grid article>span{background:var(--blue-soft);color:var(--blue);border-radius:9px;justify-content:center;align-items:center;width:38px;height:38px;display:flex}.progress-stat-grid article div{flex-direction:column;display:flex}.progress-stat-grid small{color:var(--muted);font-size:var(--text-micro)}.progress-stat-grid strong{font-family:var(--font-display);letter-spacing:-.04em;font-size:22px}.progress-stat-grid article>i{background:var(--line);border-radius:999px;grid-column:1/-1;height:4px}.progress-stat-grid article>i b{background:var(--blue);border-radius:inherit;height:100%;display:block}.progress-stat-grid em{color:var(--muted);font-size:var(--text-micro);font-style:normal}.progress-main-grid{grid-template-columns:minmax(0,1.4fr) minmax(280px,.6fr);gap:17px;display:grid}.progress-route-card .learning-mesh{margin-bottom:10px}.progress-empty-route{background:var(--blue-soft);border:1px solid #315cf526;border-radius:12px;grid-template-columns:auto minmax(0,1fr);align-items:start;gap:11px;margin:18px 0 12px;padding:16px;display:grid}.progress-empty-route>span{background:var(--surface);color:var(--blue);border-radius:9px;justify-content:center;align-items:center;width:40px;height:40px;display:flex}.progress-empty-route strong{font-size:14px}.progress-empty-route p{color:var(--ink-soft);font-size:var(--text-micro);margin:4px 0 0;line-height:1.7}.route-continue{background:var(--surface-muted);border-radius:11px;justify-content:space-between;align-items:center;padding:13px;display:flex}.route-continue>div{flex-direction:column;display:flex}.route-continue small{color:var(--blue);font-family:var(--font-display);font-size:var(--text-micro)}.route-continue strong{font-size:var(--text-micro)}.outcome-list-card h2{margin:4px 0 17px;font-size:17px}.outcome-list-card ul{margin:0;padding:0;list-style:none}.outcome-list-card li{border-top:1px solid var(--line);grid-template-columns:auto 1fr;align-items:center;gap:10px;padding:14px 0;display:grid}.outcome-list-card li>span{background:var(--surface-muted);color:var(--muted);font-family:var(--font-mono);font-size:var(--text-micro);border-radius:50%;justify-content:center;align-items:center;width:28px;height:28px;display:flex}.outcome-list-card li.is-done>span{background:var(--green);color:#fff}.outcome-list-card li div{flex-direction:column;display:flex}.outcome-list-card strong{font-size:var(--text-micro)}.outcome-list-card small{color:var(--muted);font-size:var(--text-micro)}.monthly-focus-card{grid-template-columns:auto 1fr auto;align-items:center;gap:15px;margin-top:17px;display:grid}.monthly-focus-card>div:nth-child(2)>span{color:var(--blue);font-size:var(--text-micro);font-weight:700}.monthly-focus-card h2{margin:2px 0;font-size:14px}.monthly-focus-card p{color:var(--muted);font-size:var(--text-micro);margin:0}.focus-checkpoints{gap:6px;display:flex}.focus-checkpoints span{background:var(--surface-muted);color:var(--muted);font-size:var(--text-micro);border-radius:7px;padding:5px 7px}.focus-checkpoints span.is-done{background:var(--green-soft);color:var(--green);align-items:center;gap:3px;display:flex}.account-panel{grid-template-columns:1fr 1fr;gap:14px;display:grid}.preview-operation-notice{background:var(--amber-soft);color:#715414;font-size:var(--text-micro);border:1px solid #b47d1138;border-radius:12px;flex-direction:column;grid-column:1/-1;align-items:flex-start;gap:3px;padding:12px 14px;line-height:1.65;display:flex}.preview-operation-notice strong{color:#65480c}.account-card{background:var(--surface);border:1px solid var(--line);border-radius:15px;min-width:0;padding:22px}.account-card-header{justify-content:space-between;align-items:center;display:flex}.profile-summary{border-bottom:1px solid var(--line);align-items:center;gap:13px;margin:20px 0;padding-bottom:18px;display:flex}.profile-large-avatar{border-radius:12px;width:48px;height:48px}.profile-summary>div{flex-direction:column;min-width:0;display:flex}.profile-summary strong{font-size:12px}.profile-summary span{color:var(--muted);font-size:var(--text-micro);overflow-wrap:anywhere}.profile-details{grid-template-columns:repeat(3,1fr);gap:12px;margin:0;display:grid}.profile-details div{flex-direction:column;display:flex}.profile-details dt{color:var(--muted);font-size:var(--text-micro)}.profile-details dd{font-size:var(--text-micro);margin:2px 0 0;font-weight:600}.learning-profile-details{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:20px}.learning-profile-details>div{background:var(--surface-muted);border-radius:9px;min-width:0;padding:10px 12px}.learning-profile-caption,.learning-profile-empty{color:var(--muted);font-size:var(--text-micro)}.subscription-status{background:var(--green-soft);color:var(--green)}.subscription-status>span,.healthy-pill>span{background:currentColor;border-radius:50%;width:6px;height:6px}.subscription-status.is-canceling{background:var(--amber-soft);color:#8b6415}.plan-summary{justify-content:space-between;align-items:end;margin:22px 0;display:flex}.plan-summary>div{flex-direction:column;display:flex}.plan-summary small{color:var(--muted);font-size:var(--text-micro)}.plan-summary strong{font-family:var(--font-display);font-size:20px}.plan-summary>div:last-child{align-items:flex-end}.plan-summary>div:last-child strong{font-size:25px}.billing-date{background:var(--surface-muted);border-radius:10px;align-items:center;gap:10px;padding:12px;display:flex}.billing-date svg{color:var(--blue)}.billing-date div{flex-direction:column;display:flex}.billing-date small{color:var(--muted);font-size:var(--text-micro)}.billing-date strong{font-size:var(--text-micro)}.account-actions{justify-content:space-between;align-items:center;margin-top:16px;display:flex}.cancel-scheduled{background:var(--amber-soft);color:#805d15;font-size:var(--text-micro);border-radius:9px;align-items:flex-start;gap:7px;margin-top:12px;padding:10px;display:flex}.security-card button{border:0;border-top:1px solid var(--line);text-align:left;background:0 0;justify-content:space-between;align-items:center;width:100%;padding:15px 0;display:flex}.security-card button:first-of-type{margin-top:17px}.security-card button>span:first-child{flex-direction:column;display:flex}.security-card button strong{font-size:var(--text-micro)}.security-card button small{color:var(--muted);font-size:var(--text-micro)}.security-card button>span:last-child{color:var(--blue);font-size:var(--text-micro)}.danger-zone{justify-content:space-between;align-items:center;display:flex}.danger-zone h2{margin-bottom:5px}.danger-zone p{color:var(--muted);font-size:var(--text-micro);max-width:410px;margin:0}.danger-zone>.button{white-space:nowrap;flex-shrink:0}.modal-backdrop{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:100;background:#0a182a7a;justify-content:center;align-items:safe center;padding:20px;display:flex;position:fixed;inset:0;overflow-y:auto}.cancel-dialog{background:var(--surface);border-radius:17px;width:100%;max-width:460px;max-height:calc(100dvh - 32px);padding:30px;position:relative;overflow-y:auto;box-shadow:0 30px 90px #0a182a52}.dialog-close{background:var(--surface-muted);border:0;border-radius:8px;justify-content:center;align-items:center;width:44px;height:44px;padding:0;display:flex;position:absolute;top:16px;right:16px}.dialog-alert{background:var(--amber-soft);color:#9a6907;border-radius:10px;justify-content:center;align-items:center;width:46px;height:46px;margin-bottom:18px;display:flex}.cancel-dialog h2{letter-spacing:-.04em;margin-bottom:9px;font-size:20px}.cancel-dialog>p{color:var(--ink-soft);font-size:var(--text-micro)}.dialog-note{background:var(--surface-muted);color:var(--muted);font-size:var(--text-micro);border-radius:8px;padding:10px}.dialog-actions{justify-content:flex-end;gap:8px;margin-top:22px;display:flex}.account-dialog-form{gap:7px;margin-top:20px;display:grid}.account-dialog-form label{font-size:var(--text-micro);margin-top:4px;font-weight:700}.account-dialog-form input,.account-dialog-form select{background:var(--surface-muted);border:1px solid var(--line-strong);border-radius:9px;min-height:43px;padding:0 12px}.account-notice{background:var(--green-soft);border-radius:8px;margin:14px 0 0;padding:10px 12px;font-weight:700;color:var(--green)!important;font-size:var(--text-micro)!important}.device-list,.data-action-list{border-bottom:1px solid var(--line);margin-top:18px}.device-row,.data-action-list button{border:0;border-top:1px solid var(--line);justify-content:space-between;align-items:center;width:100%;min-height:62px;padding:11px 0;display:flex}.device-row>div,.data-action-list button>span:first-child{text-align:left;flex-direction:column;display:flex}.device-row strong,.data-action-list strong{font-size:var(--text-micro)}.device-row small,.data-action-list small{color:var(--muted);font-size:var(--text-micro)}.device-row>span,.data-action-list button>span:last-child{color:var(--blue);font-size:var(--text-micro);font-weight:700}.data-action-list button{background:0 0}.data-action-list button:hover{color:var(--blue)}.data-action-list .danger-data-action strong,.data-action-list .danger-data-action>span:last-child{color:var(--red)}.help-header-icon{background:var(--blue-soft);color:var(--blue);border-radius:12px;justify-content:center;align-items:center;width:48px;height:48px;display:flex}.help-center-grid{grid-template-columns:minmax(0,1.45fr) minmax(300px,.55fr);gap:18px;display:grid}.help-search-panel,.help-contact-card{background:var(--surface);border:1px solid var(--line);border-radius:17px;padding:23px}.help-search-field{background:var(--surface-muted);border:1px solid var(--line-strong);color:var(--muted);border-radius:11px;align-items:center;gap:9px;padding:0 13px;display:flex}.help-search-field input{background:0 0;border:0;outline:0;width:100%;min-height:48px}.help-question-list{margin-top:16px}.help-question-list details{border-top:1px solid var(--line)}.help-question-list summary{cursor:pointer;grid-template-columns:auto 1fr;align-items:center;gap:11px;padding:16px 3px;list-style:none;display:grid}.help-question-list summary::-webkit-details-marker{display:none}.help-question-list summary>span{background:var(--blue-soft);color:var(--blue);border-radius:9px;justify-content:center;align-items:center;width:36px;height:36px;display:flex}.help-question-list summary>div{flex-direction:column;display:flex}.help-question-list summary small{color:var(--muted);font-size:var(--text-micro)}.help-question-list summary strong{font-size:13px}.help-question-list details>p{color:var(--ink-soft);margin:-3px 0 16px 50px;font-size:12px}.help-empty{color:var(--muted);text-align:center;flex-direction:column;align-items:center;padding:60px 20px;display:flex}.help-empty strong{color:var(--ink);margin-top:12px}.help-empty p{font-size:var(--text-small)}.help-contact-card h2{letter-spacing:-.04em;margin:6px 0 8px;font-size:22px}.help-contact-card>p{color:var(--muted);font-size:var(--text-small)}.help-contact-card form{gap:7px;margin-top:20px;display:grid}.help-contact-card form label{font-size:var(--text-micro);margin-top:4px;font-weight:700}.help-contact-card input,.help-contact-card textarea{background:var(--surface-muted);border:1px solid var(--line-strong);resize:vertical;border-radius:9px;padding:10px 12px}.help-contact-card .button{margin-top:9px}.public-help-page{background:var(--canvas);min-height:100vh}.public-help-content{max-width:1160px;margin:0 auto;padding:58px 30px 90px}.public-help-content .member-page-header{margin-bottom:28px}.system-state-page{background:radial-gradient(circle at 70% 20%, var(--blue-soft), transparent 34%), var(--canvas);min-height:100vh;padding:30px clamp(24px,6vw,84px)}.system-state-page>section{text-align:center;max-width:620px;margin:13vh auto 0}.system-state-icon{background:var(--blue-soft);color:var(--blue);border-radius:14px;justify-content:center;align-items:center;width:58px;height:58px;margin:0 auto 18px;display:flex}.system-state-icon.is-error{background:var(--amber-soft);color:#8b6415}.system-state-page h1{letter-spacing:-.055em;margin:13px 0 16px;font-size:clamp(34px,5vw,58px);line-height:1.18}.system-state-page p{color:var(--muted);max-width:530px;margin:0 auto 28px}.system-state-page section>div{justify-content:center;gap:10px;display:flex}.loading-state-page{background:var(--canvas);min-height:100vh;padding:42px clamp(24px,6vw,84px)}.loading-brand-skeleton{background:var(--line);border-radius:8px;width:150px;height:28px;animation:1.2s ease-in-out infinite skeleton-pulse}.loading-layout-skeleton{grid-template-columns:1.4fr .6fr;gap:18px;max-width:1120px;margin:12vh auto 0;display:grid}.loading-layout-skeleton span{background:var(--surface);border:1px solid var(--line);border-radius:17px;min-height:220px;animation:1.2s ease-in-out infinite skeleton-pulse}.loading-layout-skeleton span:first-child{grid-column:1/-1;min-height:90px}.loading-layout-skeleton span:nth-child(4){grid-column:1/-1;min-height:150px}@keyframes skeleton-pulse{50%{opacity:.55}}.admin-frame{background:#eef3f9;min-height:100vh;padding-left:216px}.admin-sidebar{color:#fff;background:#102035;flex-direction:column;width:216px;padding:27px 18px 20px;display:flex;position:fixed;top:0;bottom:0;left:0}.admin-badge{color:var(--cyan);font-family:var(--font-display);font-size:var(--text-micro);letter-spacing:.12em;background:#82d7f71a;border-radius:7px;align-items:center;gap:6px;margin:25px 0 22px;padding:7px 8px;display:flex}.admin-sidebar nav{flex-direction:column;gap:4px;display:flex}.admin-sidebar nav a{color:#91a3b8;font-size:var(--text-micro);border-radius:9px;align-items:center;gap:10px;min-height:44px;padding:0 10px;font-weight:600;display:flex}.admin-sidebar nav a.is-active{color:#fff;background:#315cf538}.admin-environment{color:#788ca3;font-size:var(--text-micro);border-top:1px solid #ffffff14;align-items:center;gap:6px;margin-top:auto;padding:16px 7px 8px;display:flex}.admin-environment span{background:var(--amber);border-radius:50%;width:6px;height:6px}.admin-back{color:#91a3b8;font-size:var(--text-micro);padding:8px}.admin-main{min-height:100vh}.admin-page{max-width:1420px;margin:0 auto;padding:34px clamp(24px,4vw,52px) 80px}.admin-page-header{justify-content:space-between;align-items:center;margin-bottom:24px;display:flex}.admin-page-header>div:first-child>span{color:var(--blue);font-family:var(--font-display);font-size:var(--text-micro);letter-spacing:.14em;font-weight:700}.admin-page-header h1{letter-spacing:-.045em;margin:3px 0 1px;font-size:27px}.admin-page-header p{color:var(--muted);font-size:var(--text-micro);margin:0}.admin-page-header>div:last-child{gap:8px;display:flex}.admin-alert{background:var(--amber-soft);color:#8b6415;border:1px solid #f2b84b40;border-radius:11px;grid-template-columns:auto 1fr auto;align-items:center;gap:11px;margin-bottom:14px;padding:12px 14px;display:grid}.admin-alert div{flex-direction:column;display:flex}.admin-alert strong,.admin-alert span{font-size:var(--text-micro)}.admin-alert a{font-size:var(--text-micro);align-items:center;gap:5px;min-height:44px;font-weight:700;display:flex}.admin-stat-grid,.insight-summary-grid{grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:14px;display:grid}.admin-stat-grid article,.insight-summary-grid article,.content-status-strip>div{background:var(--surface);border:1px solid var(--line);border-radius:12px;grid-template-columns:auto 1fr;align-items:center;gap:10px;min-height:88px;padding:14px;display:grid}.admin-stat-icon{border-radius:9px;justify-content:center;align-items:center;width:39px;height:39px;display:flex}.admin-stat-icon.blue{background:var(--blue-soft);color:var(--blue)}.admin-stat-icon.cyan{background:var(--cyan-soft);color:#16799d}.admin-stat-icon.violet{background:var(--violet-soft);color:var(--violet)}.admin-stat-icon.amber{background:var(--amber-soft);color:#a06c07}.admin-stat-grid article>div,.insight-summary-grid article>div,.content-status-strip>div>div{flex-direction:column;display:flex}.admin-stat-grid small,.insight-summary-grid small,.content-status-strip small{color:var(--muted);font-size:var(--text-micro)}.admin-stat-grid strong,.insight-summary-grid strong,.content-status-strip strong{font-family:var(--font-display);letter-spacing:-.04em;font-size:22px;line-height:1.2}.admin-stat-grid em,.insight-summary-grid em{color:var(--green);font-size:var(--text-micro);align-items:center;gap:3px;font-style:normal;display:flex}.admin-stat-grid em.neutral{color:var(--muted)}.admin-dashboard-grid,.insights-grid{grid-template-columns:minmax(0,1.45fr) minmax(280px,.55fr);gap:14px;margin-bottom:14px;display:grid}.admin-dashboard-grid.lower{grid-template-columns:1fr .7fr}.admin-panel,.admin-table-panel{background:var(--surface);border:1px solid var(--line);border-radius:13px;padding:18px}.admin-panel>header{justify-content:space-between;align-items:center;display:flex}.admin-panel select,.admin-table-toolbar select{background:var(--surface-muted);border:1px solid var(--line-strong);color:var(--muted);font-size:var(--text-micro);border-radius:7px;padding:7px 9px}.line-chart{height:220px;margin-top:20px;position:relative}.chart-guides{flex-direction:column;justify-content:space-between;display:flex;position:absolute;inset:0 0 22px}.chart-guides i{border-top:1px dashed var(--line)}.line-chart svg{width:100%;height:calc(100% - 20px);position:relative;overflow:visible}.chart-area{fill:url(#chartFill)}.chart-line{fill:none;stroke:var(--blue);stroke-linecap:round;stroke-width:3px;vector-effect:non-scaling-stroke}.chart-labels{color:var(--muted-light);font-size:var(--text-micro);justify-content:space-between;width:100%;display:flex;position:absolute;bottom:0}.funnel-list{flex-direction:column;gap:16px;margin-top:25px;display:flex}.funnel-list>div{justify-content:space-between;align-items:center;display:flex}.funnel-list span{color:var(--muted);font-size:var(--text-micro);align-items:center;gap:7px;display:flex}.funnel-list i{border-radius:3px;width:9px;height:9px}.funnel-list i.blue{background:var(--blue)}.funnel-list i.cyan{background:var(--cyan)}.funnel-list i.violet{background:var(--violet)}.funnel-list i.amber{background:var(--amber)}.funnel-list strong{font-family:var(--font-display);font-size:17px}.funnel-list small{color:var(--muted);font-family:var(--font-body);font-size:var(--text-micro);margin-left:7px}.count-badge{background:var(--red-soft);color:var(--red);font-size:var(--text-micro);border-radius:999px;justify-content:center;align-items:center;width:22px;height:22px;display:flex}.operations-list>a{border-top:1px solid var(--line);grid-template-columns:auto 1fr auto;align-items:center;gap:10px;padding:13px 0;display:grid}.task-severity{border-radius:50%;width:8px;height:8px}.task-severity.high{background:var(--red)}.task-severity.medium{background:var(--amber)}.task-severity.low{background:var(--blue)}.operations-list a div{flex-direction:column;display:flex}.operations-list a strong{font-size:var(--text-micro)}.operations-list a small{color:var(--muted);font-size:var(--text-micro)}.operations-list a>span:last-child{color:var(--blue);font-size:var(--text-micro)}.healthy-pill{background:var(--green-soft);color:var(--green)}.system-health ul{margin:17px 0 0;padding:0;list-style:none}.system-health li{border-top:1px solid var(--line);font-size:var(--text-micro);justify-content:space-between;align-items:center;padding:11px 0;display:flex}.system-health li span{color:var(--muted)}.system-health li strong{align-items:center;gap:7px;display:flex}.system-health li i{border-radius:50%;width:6px;height:6px}.system-health li i.good{background:var(--green)}.system-health li i.warn{background:var(--amber)}.content-status-strip{grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:14px;display:grid}.admin-table-panel{padding:0;overflow:hidden}.admin-table-toolbar{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:12px;padding:14px 17px;display:flex}.admin-table-toolbar label{flex:0 320px;min-height:38px}.admin-table-toolbar>div{gap:5px;display:flex}.filter-chip{border:1px solid var(--line);color:var(--muted);font-size:var(--text-micro);background:0 0;border-radius:7px;padding:7px 10px}.filter-chip.is-active{background:var(--blue-soft);color:var(--blue);border-color:#315cf52e}.admin-table{flex-direction:column;display:flex}.table-head,.table-row{align-items:center;gap:12px;min-height:56px;padding:0 17px;display:grid}.content-table .table-head,.content-table .table-row{grid-template-columns:minmax(260px,1.3fr) 110px 120px 90px 36px}.member-table .table-head,.member-table .table-row{grid-template-columns:minmax(260px,1.3fr) 120px 160px 100px 36px}.table-head{background:var(--surface-muted);color:var(--muted);font-size:var(--text-micro);min-height:36px}.table-row{border-top:1px solid var(--line)}.content-title-cell,.member-name-cell{align-items:center;gap:11px;display:flex}.content-title-cell>i,.member-name-cell>i{background:var(--blue-soft);color:var(--blue);font-family:var(--font-mono);font-size:var(--text-micro);border-radius:8px;justify-content:center;align-items:center;width:34px;height:34px;font-style:normal;display:flex}.member-name-cell>i{background:var(--ink);color:#fff;font-family:var(--font-display)}.content-title-cell>span,.member-name-cell>span{flex-direction:column;display:flex}.content-title-cell strong,.member-name-cell strong{font-size:var(--text-micro)}.content-title-cell small,.member-name-cell small{color:var(--muted);font-size:var(--text-micro)}.status-published,.status-review,.status-canceling{background:var(--green-soft);color:var(--green);font-size:var(--text-micro);border-radius:999px;padding:5px 7px;font-style:normal}.status-review{background:var(--amber-soft);color:#8b6415}.status-canceling{background:var(--red-soft);color:var(--red)}.muted-cell,.view-cell{color:var(--muted);font-size:var(--text-micro)}.view-cell{align-items:center;gap:5px;display:flex}.progress-cell{align-items:center;gap:8px;display:flex}.progress-cell>i{background:var(--line);border-radius:99px;width:90px;height:4px}.progress-cell>i b{background:var(--blue);border-radius:inherit;height:100%;display:block}.progress-cell small{color:var(--muted);font-size:var(--text-micro)}.insight-summary-grid{grid-template-columns:repeat(3,1fr)}.insight-list>article{border-top:1px solid var(--line);grid-template-columns:auto 1fr auto;align-items:start;gap:11px;padding:16px 0;display:grid}.insight-priority{background:var(--red-soft);color:var(--red);border-radius:8px;justify-content:center;align-items:center;width:34px;height:34px;display:flex}.insight-priority.medium{background:var(--amber-soft);color:#966607}.insight-list article>div{flex-direction:column;display:flex}.insight-list article small{color:var(--muted);font-size:var(--text-micro)}.insight-list article strong{font-size:var(--text-micro);margin:2px 0}.insight-list article p{color:var(--muted);font-size:var(--text-micro);margin:0 0 7px}.source-chip{background:var(--blue-soft);color:var(--blue);font-size:var(--text-micro);border-radius:5px;align-self:flex-start;padding:4px 6px}.insight-list article>button{color:var(--blue);font-size:var(--text-micro);background:0 0;border:0;align-items:center;gap:4px;padding:4px;display:flex}.question-topics ol{margin:15px 0 0;padding:0;list-style:none}.question-topics li{border-top:1px solid var(--line);grid-template-columns:26px 1fr auto;align-items:center;gap:10px;padding:13px 0;display:grid}.question-topics li>span{color:var(--muted-light);font-family:var(--font-mono);font-size:var(--text-micro)}.question-topics li>div{flex-direction:column;display:flex}.question-topics strong{font-size:var(--text-micro)}.question-topics i{background:var(--line);border-radius:99px;width:100%;height:3px;margin-top:6px}.question-topics i b{background:var(--blue);border-radius:inherit;height:100%;display:block}.question-topics em{color:var(--muted);font-size:var(--text-micro);font-style:normal}@media (max-width:1680px){.lesson-workspace{grid-template-columns:1fr;max-width:1160px}}@media (max-width:1160px){.hero-section{grid-template-columns:1fr minmax(440px,.9fr);padding-left:40px;padding-right:40px}.hero-mesh-card{margin-left:28px}.public-nav{gap:18px}.proof-strip{grid-template-columns:repeat(3,1fr)}.proof-strip p{display:none}.proof-strip>div{min-width:0;margin-right:20px;padding-right:20px}.lesson-card-grid{grid-template-columns:repeat(2,1fr)}.dashboard-primary-grid,.dashboard-secondary-grid{grid-template-columns:1.35fr .65fr}.progress-stat-grid{grid-template-columns:repeat(2,1fr)}.account-panel,.help-center-grid{grid-template-columns:1fr}.admin-stat-grid{grid-template-columns:repeat(2,1fr)}.lesson-workspace{grid-template-columns:1fr}.admin-table-panel{overflow:hidden}.admin-table{min-width:0}.admin-table .table-head{clip:rect(0, 0, 0, 0);clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;min-height:0;padding:0;position:absolute;overflow:hidden}.content-table .table-row,.member-table .table-row{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start;gap:14px 18px;min-height:0;padding:16px;position:relative}.content-table .content-title-cell,.member-table .member-name-cell{grid-column:1/-1;min-width:0;min-height:44px;padding-right:50px}.content-title-cell>span,.member-name-cell>span{min-width:0}.content-title-cell small,.member-name-cell small{overflow-wrap:anywhere}.content-table .table-row>span:nth-child(n+2):nth-child(-n+4),.member-table .table-row>span:nth-child(n+2):nth-child(-n+4){flex-direction:column;align-items:flex-start;gap:4px;min-width:0;display:flex}.content-table .table-row>span:nth-child(2):before,.member-table .table-row>span:nth-child(2):before{content:"状態"}.content-table .table-row>span:nth-child(3):before{content:"更新"}.content-table .table-row>span:nth-child(4):before{content:"学習"}.member-table .table-row>span:nth-child(3):before{content:"学習進捗"}.member-table .table-row>span:nth-child(4):before{content:"最終利用"}.content-table .table-row>span:nth-child(n+2):nth-child(-n+4):before,.member-table .table-row>span:nth-child(n+2):nth-child(-n+4):before{color:var(--muted);font-size:var(--text-micro);font-weight:700}.member-table .progress-cell{grid-template-columns:minmax(0,1fr) auto;gap:6px;align-items:center!important;display:grid!important}.member-table .progress-cell:before{grid-column:1/-1}.member-table .progress-cell>i{width:100%}.content-table .table-row>span:last-child,.member-table .table-row>span:last-child{position:absolute;top:12px;right:12px}}@media (max-width:960px){.public-header-inner{grid-template-columns:1fr auto}.public-nav{display:none}.hero-section{grid-template-columns:1fr;padding-top:70px;padding-bottom:90px}.hero-copy{max-width:720px}.hero-mesh-card{width:100%;max-width:600px;margin:55px auto 0;transform:none}.experience-grid{grid-template-columns:1fr}.experience-card{min-height:260px}.experience-icon{margin-bottom:34px}.product-demo-grid,.ai-feature-section,.pricing-grid{grid-template-columns:1fr;gap:60px}.ai-feature-copy{order:-1}.price-card{max-width:560px}.footer-grid{grid-template-columns:1fr}.auth-page{grid-template-columns:.7fr 1.3fr}.auth-brand-panel{padding:35px}.auth-route-preview{display:none}.checkout-grid{grid-template-columns:1fr 330px;gap:35px}.app-frame{--app-sidebar-width:205px;padding-left:var(--app-sidebar-width)}.app-sidebar{width:var(--app-sidebar-width)}.dashboard-primary-grid,.dashboard-secondary-grid,.progress-main-grid{grid-template-columns:1fr}.continue-main{grid-template-columns:135px 1fr}.week-stats-card{min-height:260px}.week-bars{height:85px}.ai-prompt-card{min-height:340px}.lesson-workspace{grid-template-columns:1fr}.admin-frame{padding-left:190px}.admin-sidebar{width:190px}.admin-dashboard-grid,.admin-dashboard-grid.lower,.insights-grid{grid-template-columns:1fr}}@media (min-width:821px) and (max-width:1160px){.content-table .table-row,.member-table .table-row{grid-template-columns:repeat(3,minmax(0,1fr))}}@media (min-width:521px) and (max-width:820px){.ai-page-context{grid-template-columns:minmax(240px,1.35fr) repeat(2,minmax(120px,.65fr))}}@media (max-width:820px){body{font-size:var(--text-body)}.text-button{min-height:44px}input:not([type=checkbox]):not([type=radio]),select,textarea{font-size:16px}.section-wrap{padding-left:20px;padding-right:20px}.public-header-inner{min-height:64px;padding:0 18px}.public-actions .text-link{display:none}.public-actions .button{min-height:44px;padding:0 13px}.hero-section{min-height:auto;padding:58px 20px 72px}.hero-copy h1{font-size:42px}.hero-lead{font-size:14px}.hero-lead br{display:none}.hero-actions .button{width:100%}.hero-trust{flex-direction:column;align-items:flex-start;gap:7px}.hero-mesh-card{padding:20px}.hero-mesh-card:before,.hero-side-label{display:none}.proof-strip{grid-template-columns:repeat(3,1fr);padding:20px 14px}.proof-strip>div{text-align:center;border-right:0;margin:0;padding:0 5px}.proof-strip strong{font-size:20px}.proof-strip span{font-size:var(--text-micro)}.experience-section,.ai-feature-section,.pricing-section,.final-cta{padding-top:78px;padding-bottom:78px}.section-heading.split{grid-template-columns:1fr;align-items:start;gap:20px;margin-bottom:34px}.section-heading h2,.demo-copy h2,.ai-feature-copy h2,.pricing-copy h2,.final-cta h2{font-size:34px}.product-demo-section{padding:75px 0}.curriculum-row{grid-template-columns:26px 1fr auto;gap:10px;padding:10px}.curriculum-line{display:none}.ai-feature-visual{min-height:410px}.ai-orbit:before{width:340px;height:340px}.ai-orbit:after{width:250px;height:250px}.pricing-grid{gap:35px}.price-card{padding:28px 22px}.footer-grid nav{flex-wrap:wrap}.sample-main{padding:20px 16px 70px}.sample-hero{grid-template-columns:1fr;gap:28px;padding:34px 24px}.sample-layout{grid-template-columns:1fr}.lesson-article{padding:38px 22px}.sample-aside{display:none}.concept-flow{flex-direction:column;align-items:stretch;gap:5px}.concept-flow>i{width:1px;height:18px;margin:0 auto}.concept-flow>i:after{inset:auto auto 0 -2px;transform:rotate(135deg)}.auth-page{display:block}.auth-brand-panel{display:none}.auth-form-panel{padding:24px 20px 60px}.auth-form-wrap{margin-top:70px}.checkout-grid{flex-direction:column-reverse;padding:30px 20px 70px;display:flex}.order-summary{grid-template-columns:minmax(0,1fr) auto;gap:12px;width:100%;padding:24px;display:grid;position:static}.order-summary:after{display:none}.order-summary .micro-label,.order-preview-badge,.order-divider,.order-summary ul,.order-summary dl,.order-summary>p{grid-column:1/-1}.order-summary h1{margin:0;font-size:24px}.order-price{justify-self:end}.order-price strong{font-size:28px}.order-divider{margin:2px 0}.order-summary ul{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 12px;display:grid}.order-summary dl{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:4px 0 0;display:grid}.order-summary dl div{flex-direction:column;align-items:flex-start;gap:2px}.checkout-form-column{width:100%}.checkout-stepper{margin-top:26px}.checkout-stepper li>strong{font-size:var(--text-micro);overflow-wrap:anywhere}.checkout-preview-notice{align-items:start}.app-frame{--app-sidebar-width:0px;padding:0 0 calc(88px + env(safe-area-inset-bottom))}.app-sidebar{display:none}.mobile-app-nav{border-top:1px solid var(--line);min-height:calc(72px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);z-index:50;background:#fffffff0;grid-template-columns:repeat(5,minmax(0,1fr));align-items:center;display:grid;position:fixed;bottom:0;left:0;right:0}.mobile-app-nav a{color:var(--muted);font-size:var(--text-micro);white-space:nowrap;flex-direction:column;justify-content:center;align-items:center;gap:3px;min-height:48px;display:flex}.mobile-app-nav a.is-active{color:var(--blue)}.member-page{padding:25px 16px calc(96px + env(safe-area-inset-bottom))}.member-page-header{align-items:flex-start;gap:16px}.member-page-header h1{font-size:25px}.ai-page{height:calc(100dvh - 88px - env(safe-area-inset-bottom));padding:12px}.ai-history-trigger{position:static}.header-actions .button{display:none}.focus-banner{grid-template-columns:auto 1fr}.focus-banner .text-button{grid-column:2;justify-self:start;min-height:44px}.continue-main{grid-template-columns:1fr}.lesson-visual{height:135px}.continue-meta{flex-direction:column;align-items:flex-start;gap:6px}.dashboard-ai-card{grid-template-columns:auto minmax(0,1fr);align-items:start}.dashboard-ai-card .button{grid-column:1/-1;width:100%}.next-lesson-list>a{grid-template-columns:34px 1fr auto}.next-lesson-list>a>span:nth-last-child(2){display:none}.lesson-card-grid{grid-template-columns:1fr}.category-tabs{overflow-x:auto}.library-progress-mini{display:none}.onboarding-page{display:block}.onboarding-flow{padding:35px 18px 80px}.onboarding-side{display:none}.onboarding-options{grid-template-columns:1fr}.onboarding-assurance{flex-direction:column;align-items:flex-start;gap:3px}.onboarding-assurance span+span:before{content:none}.lesson-topbar{grid-template-columns:1fr auto;padding:0 14px}.lesson-topbar>div{display:none}.member-lesson-article{border:0;padding:38px 19px 60px}.member-lesson-hero h1{font-size:36px}.member-lesson-toc{gap:14px}.example-comparison{grid-template-columns:1fr}.example-comparison>svg{margin:auto;transform:rotate(90deg)}.lesson-footer{flex-direction:column;align-items:stretch;gap:16px}.lesson-footer .button{width:100%}.quiz-feedback{grid-template-columns:auto 1fr}.quiz-feedback .text-button{grid-column:2}.ai-context-selector select,.admin-panel select,.admin-table-toolbar select{font-size:16px}.ai-full-panel .ai-composer textarea{height:56px}.ai-chat-empty{padding:9px 10px}.ai-starter-prompts{max-width:none;margin-top:0}.ai-starter-prompts>div{overscroll-behavior-inline:contain;scroll-snap-type:inline proximity;gap:8px;padding-bottom:2px;scroll-padding-inline:2px;display:flex;overflow-x:auto}.ai-starter-prompts button{scroll-snap-align:start;text-align:left;flex:0 0 min(78%,240px);grid-column:auto;min-height:44px}.progress-stat-grid{grid-template-columns:repeat(2,1fr)}.route-continue{flex-direction:column;align-items:stretch;gap:12px}.route-continue .button{width:100%}.monthly-focus-card{grid-template-columns:auto 1fr}.focus-checkpoints{display:none}.profile-details{grid-template-columns:1fr}.learning-profile-details{grid-template-columns:repeat(2,minmax(0,1fr))}.account-actions{flex-direction:column;align-items:stretch;gap:9px}.danger-zone{flex-direction:column;align-items:stretch;gap:14px}.help-search-panel,.help-contact-card{padding:18px}.help-question-list details>p{margin-left:0}.public-help-content{padding:34px 16px 70px}.admin-frame{padding:0}.admin-sidebar{display:none}.admin-page{padding:24px 14px calc(96px + env(safe-area-inset-bottom))}.admin-page-header{flex-direction:column;align-items:stretch;gap:15px}.admin-page-header>div:last-child{flex-wrap:wrap;width:100%}.admin-page-header>.button,.admin-page-header>div:last-child .button{flex:1;min-height:44px;padding:0 11px}.admin-alert{grid-template-columns:auto minmax(0,1fr);align-items:start}.admin-alert>.button,.admin-alert>a{grid-column:1/-1;justify-content:center;width:100%}.admin-stat-grid,.insight-summary-grid,.content-status-strip{grid-template-columns:1fr 1fr}.admin-table-toolbar{flex-direction:column;align-items:stretch;min-width:0}.admin-table-toolbar label{flex-basis:auto;width:100%}.admin-table-toolbar>div{padding-bottom:2px;overflow-x:auto}}@media (max-width:430px){.hero-copy h1{font-size:36px}.hero-mesh-card .mesh-node-copy small{display:none}.mesh-node{grid-template-columns:36px 1fr auto}.proof-strip strong{font-size:17px}.section-heading h2,.demo-copy h2,.ai-feature-copy h2,.pricing-copy h2,.final-cta h2{font-size:30px}.progress-stat-grid{grid-template-columns:1fr}.member-lesson-hero h1{font-size:32px}.order-summary{grid-template-columns:1fr}.order-price{justify-self:start}.profile-summary{align-items:flex-start}.learning-profile-details{grid-template-columns:1fr}.dialog-actions{flex-direction:column;align-items:stretch}.dialog-actions .button{width:100%}.system-state-page section>div{flex-direction:column;align-items:stretch}.loading-layout-skeleton{grid-template-columns:1fr}.loading-layout-skeleton span:first-child,.loading-layout-skeleton span:nth-child(4){grid-column:auto}.admin-stat-grid,.insight-summary-grid,.content-status-strip{grid-template-columns:1fr}.ai-starter-prompts>span{display:none}.ai-chat-empty p{clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}}@media (max-height:740px){.ai-chat-empty p{clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}}@media (max-width:520px) and (max-height:620px){.ai-page-context{overscroll-behavior-inline:contain;scroll-snap-type:inline proximity;flex:0 0 52px;width:100%;min-width:0;max-width:100%;min-height:52px;max-height:52px;display:flex;overflow:auto hidden}.ai-context-segment{scroll-snap-align:start;flex:none;gap:7px;width:auto;min-height:52px;padding:3px 7px}.ai-context-segment+.ai-context-segment{border-left:1px solid var(--line);border-top:0}.ai-context-lesson{grid-template-columns:auto minmax(0,1fr) auto;width:100%;min-width:100%;max-width:100%}.ai-context-selector{grid-column:auto;width:clamp(140px,44vw,180px);min-width:140px;display:block}.ai-context-selector select{width:100%;max-width:100%;min-height:44px}.ai-context-link,.ai-context-disabled{min-width:126px}.ai-page-context em{display:none}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}