:root{--ink:#14213d;--ink-2:#4a5672;--ink-3:#7b869e;--paper:#ffffff;--wash:#f2f5fa;--line:#dce3ee;--blue:#1f5eff;--blue-deep:#1747c9;--blue-soft:#e8efff;--cyan:#0ea5e9;--marker:#ffe247;--ok:#0f8a4f;--ok-soft:#e3f6ec;--warn-soft:#fff6d6;--danger:#c2371f;--radius-s:8px;--radius-m:14px;--radius-l:22px;--font:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",sans-serif;--mono:"JetBrains Mono",ui-monospace,"Cascadia Code",Consolas,monospace;--wrap:1120px;color-scheme:light}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased}a{color:var(--blue);text-underline-offset:3px}img,svg{max-width:100%}:focus-visible{outline:3px solid var(--cyan);outline-offset:2px;border-radius:4px}h1,h2,h3{line-height:1.2;letter-spacing:-.02em;margin:0;text-wrap:balance}p{margin:0}.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 20px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 22px;border-radius:999px;font:600 16px/1 var(--font);text-decoration:none;cursor:pointer;border:1.5px solid transparent;transition:background-color .15s,border-color .15s,color .15s}.btn-primary{background:var(--blue);color:#fff}.btn-primary:hover{background:var(--blue-deep)}.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}.btn-ghost:hover{border-color:var(--ink-3)}.btn-small{min-height:38px;padding:0 16px;font-size:15px}.btn-block{width:100%}.btn[disabled]{opacity:.55;cursor:not-allowed}.site-header{position:-webkit-sticky;position:sticky;top:0;z-index:20;background:rgba(255,255,255,.92);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}.site-header .wrap{gap:24px;height:66px}.brand,.site-header .wrap{display:flex;align-items:center}.brand{flex-shrink:0}.brand img{height:34px;width:auto;display:block}.site-nav{display:flex;gap:22px;margin-left:auto}.site-nav a{color:var(--ink-2);text-decoration:none;font-size:15px;font-weight:500}.site-nav a:hover{color:var(--ink)}.header-actions{display:flex;gap:10px;align-items:center}@media (max-width:860px){.site-nav{display:none}.header-actions{margin-left:auto}.brand img{height:28px}}@media (max-width:420px){.header-actions .btn-ghost{display:none}}.hero{padding:64px 0 72px;background:linear-gradient(180deg,var(--wash) 0,#fff 100%)}.hero .wrap{display:grid;grid-template-columns:1.02fr 1fr;grid-gap:56px;gap:56px;align-items:center}.hero h1{font-size:clamp(34px,4.6vw,52px);font-weight:800;letter-spacing:-.035em}.hero-lead{margin-top:20px;font-size:19px;color:var(--ink-2);max-width:34em}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}.hero-note{margin-top:16px;font-size:14.5px;color:var(--ink-3)}@media (max-width:920px){.hero{padding:40px 0 48px}.hero .wrap{grid-template-columns:1fr;gap:36px}}.demo{position:relative}.demo-ask{background:var(--ink);color:#e9eefb;border-radius:var(--radius-l) var(--radius-l) var(--radius-l) 6px;padding:18px 20px 20px;font:400 15px/1.6 var(--mono);min-height:132px;box-shadow:0 18px 40px -24px rgba(20,33,61,.6)}.demo-ask .who{display:block;font:600 12.5px/1 var(--font);color:#8fa3cf;margin-bottom:10px}.demo-caret{display:inline-block;width:9px;height:1.15em;background:var(--marker);vertical-align:-3px;margin-left:2px;animation:blink 1s steps(1) infinite}@keyframes blink{50%{opacity:0}}.demo-app{margin:18px 0 0 28px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-m);box-shadow:0 24px 50px -30px rgba(20,33,61,.35);overflow:hidden;transition:opacity .5s ease,transform .5s ease}.demo-app.is-hidden{opacity:0;transform:translateY(14px)}.demo-app-bar{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--line);background:var(--wash)}.demo-app-bar strong{font-size:15px}.demo-app-bar span{font-size:13px;color:var(--ink-3)}.demo-table{width:100%;border-collapse:collapse;font-size:14px}.demo-table th{text-align:left;font-weight:600;color:var(--ink-3);font-size:12.5px;padding:10px 16px 6px}.demo-table td{padding:8px 16px;border-top:1px solid #edf1f7}.demo-table td:last-child,.demo-table th:last-child{text-align:right;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.demo-row{transition:opacity .35s ease}.demo-row.is-hidden{opacity:0}.demo-total{display:flex;justify-content:space-between;align-items:center;padding:14px 16px;border-top:1px solid var(--line)}.demo-total b{font-size:18px;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.demo-total .pill{font-size:12.5px;background:var(--ok-soft);color:var(--ok);padding:4px 10px;border-radius:999px;font-weight:600}@media (max-width:560px){.demo-app{margin-left:0}}.section{padding:84px 0}.section-wash{background:var(--wash)}.section-head{max-width:640px;margin-bottom:40px}.section-head h2{font-size:clamp(28px,3.6vw,40px);font-weight:800}.section-head p{margin-top:14px;color:var(--ink-2);font-size:18px}@media (max-width:700px){.section{padding:60px 0}}.audience{display:grid;grid-template-columns:repeat(3,1fr);border-top:2px solid var(--ink)}.audience>div{padding:24px 28px 8px 0}.audience>div+div{padding-left:28px;border-left:1px solid var(--line)}.audience h3{font-size:20px}.audience p{margin-top:10px;color:var(--ink-2)}.audience .builds{margin-top:14px;font-size:15px;color:var(--ink)}.audience .builds b{font-weight:600}@media (max-width:820px){.audience{grid-template-columns:1fr}.audience>div,.audience>div+div{padding:22px 0;border-left:0;border-top:1px solid var(--line)}.audience>div:first-child{border-top:0}}.roadmap{list-style:none;margin:0;padding:0;counter-reset:ch}.roadmap>li{border-top:1px solid var(--line)}.roadmap>li:last-child{border-bottom:1px solid var(--line)}.roadmap details>summary{list-style:none;cursor:pointer;display:grid;grid-template-columns:72px 1fr auto;grid-gap:16px;gap:16px;align-items:baseline;padding:22px 0}.roadmap details>summary::-webkit-details-marker{display:none}.roadmap .ch-no{font:800 32px/1 var(--font);color:var(--blue);letter-spacing:-.03em}.roadmap .ch-title{font-size:20px;font-weight:700}.roadmap .ch-sum{display:block;margin-top:6px;font-size:15.5px;font-weight:400;color:var(--ink-2)}.roadmap .ch-meta{font-size:14px;color:var(--ink-3);white-space:nowrap}.roadmap details[open] .ch-meta:after{content:" ▴"}.roadmap details:not([open]) .ch-meta:after{content:" ▾"}.roadmap .ch-lessons{margin:0 0 22px 88px;padding:0;list-style:none;column-count:2;column-gap:32px}.roadmap .ch-lessons li{page-break-inside:avoid;break-inside:avoid;padding:6px 0;font-size:15.5px;color:var(--ink-2)}.roadmap .ch-lessons li span{color:var(--ink-3);font-feature-settings:"tnum";font-variant-numeric:tabular-nums;margin-right:8px}@media (max-width:700px){.roadmap details>summary{grid-template-columns:48px 1fr}.roadmap .ch-meta{grid-column:2}.roadmap .ch-no{font-size:26px}.roadmap .ch-lessons{margin-left:64px;column-count:1}}.projects{display:grid;grid-template-columns:repeat(4,1fr);grid-gap:28px;gap:28px}.projects h3{font-size:18px;padding-top:16px;border-top:3px solid var(--blue)}.projects p{margin-top:8px;color:var(--ink-2);font-size:15.5px}@media (max-width:900px){.projects{grid-template-columns:1fr 1fr}}@media (max-width:520px){.projects{grid-template-columns:1fr}}.teacher{display:grid;grid-template-columns:220px 1fr;grid-gap:48px;gap:48px;align-items:start}.teacher-mark{aspect-ratio:1;border-radius:var(--radius-l);background:var(--ink);color:#fff;display:grid;place-items:center;font:800 64px/1 var(--font);letter-spacing:-.04em}.teacher h3{font-size:26px}.teacher .role{color:var(--ink-2);margin-top:6px}.teacher ul{margin:20px 0 0;padding-left:20px;color:var(--ink-2)}.teacher li{margin:6px 0}.teacher .clients{margin-top:18px;font-size:15px;color:var(--ink-3)}@media (max-width:760px){.teacher{grid-template-columns:1fr;gap:24px}.teacher-mark{width:120px;font-size:40px}}.pricing{display:grid;grid-template-columns:1.1fr 1fr;grid-gap:56px;gap:56px;align-items:start}.price-box{border:2px solid var(--ink);border-radius:var(--radius-l);padding:32px;background:#fff}.price-box .price{font:800 54px/1 var(--font);letter-spacing:-.04em}.price-box .price mark{background:linear-gradient(transparent 58%,var(--marker) 58%);color:inherit;padding:0 4px}.price-box .price-sub{margin-top:10px;color:var(--ink-2)}.price-box ul{list-style:none;padding:0;margin:24px 0 28px}.price-box li{padding:9px 0 9px 30px;border-top:1px solid var(--line);position:relative}.price-box li:before{content:"";position:absolute;left:4px;top:17px;width:12px;height:7px;border-left:2.5px solid var(--ok);border-bottom:2.5px solid var(--ok);transform:rotate(-45deg)}.steps{list-style:none;padding:0;margin:0;counter-reset:st}.steps li{counter-increment:st;display:grid;grid-template-columns:44px 1fr;grid-gap:14px;gap:14px;padding:0 0 26px}.steps li:before{content:counter(st);width:36px;height:36px;border-radius:50%;background:var(--blue-soft);color:var(--blue);font-weight:800;display:grid;place-items:center}.steps b{display:block;font-size:17px}.steps span{color:var(--ink-2);font-size:15.5px}@media (max-width:860px){.pricing{grid-template-columns:1fr;gap:40px}}.faq{max-width:780px}.faq details{border-top:1px solid var(--line);padding:4px 0}.faq details:last-child{border-bottom:1px solid var(--line)}.faq summary{cursor:pointer;padding:16px 0;font-weight:600;font-size:17.5px;list-style:none;display:flex;justify-content:space-between;gap:16px}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";font-weight:400;color:var(--ink-3);font-size:22px;line-height:1}.faq details[open] summary:after{content:"–"}.faq details p{padding:0 0 18px;color:var(--ink-2)}.cta-band{background:var(--ink);color:#fff;padding:64px 0}.cta-band .wrap{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}.cta-band h2{font-size:clamp(26px,3.4vw,36px);font-weight:800;max-width:18em}.site-footer{padding:36px 0 44px;font-size:14.5px;color:var(--ink-3);border-top:1px solid var(--line)}.site-footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;align-items:center}.site-footer img{height:26px;width:auto}.site-footer a{color:var(--ink-2)}.narrow{max-width:460px;margin:0 auto;padding:56px 20px 80px}.page-title{font-size:32px;font-weight:800}.page-sub{color:var(--ink-2);margin-top:10px}.form{display:grid;grid-gap:18px;gap:18px;margin-top:28px}.field label{display:block;font-weight:600;font-size:15px;margin-bottom:6px}.field .hint{font-size:13.5px;color:var(--ink-3);margin-top:6px}.input{width:100%;min-height:48px;padding:10px 14px;border-radius:var(--radius-s);border:1.5px solid var(--line);font:400 16px/1.4 var(--font);color:var(--ink);background:#fff}.input:focus{border-color:var(--blue);outline:none;box-shadow:0 0 0 3px var(--blue-soft)}.form-error{background:#fdecea;color:var(--danger)}.form-error,.form-ok{padding:12px 14px;border-radius:var(--radius-s);font-size:15px}.form-ok{background:var(--ok-soft);color:var(--ok)}.muted-link{font-size:15px;color:var(--ink-2);margin-top:22px;text-align:center}.checkout{display:grid;grid-template-columns:1.15fr 1fr;grid-gap:48px;gap:48px;padding:48px 20px 80px;max-width:1000px;margin:0 auto;align-items:start}.order-summary{background:var(--wash);border-radius:var(--radius-l);padding:28px}.order-summary h2{font-size:20px}.order-summary .line{display:flex;justify-content:space-between;padding:12px 0;border-top:1px solid var(--line);font-size:15.5px}.order-summary .line:first-of-type{border-top:0}.order-summary .total{font-weight:800;font-size:20px}.order-summary ul{padding-left:18px;color:var(--ink-2);font-size:15px;margin:16px 0 0}@media (max-width:820px){.checkout{grid-template-columns:1fr;gap:28px;padding-top:32px}}.pay{max-width:960px;margin:0 auto;padding:40px 20px 80px}.pay-grid{display:grid;grid-template-columns:340px 1fr;grid-gap:40px;gap:40px;margin-top:28px;align-items:start}.qr-frame{border:2px solid var(--ink);border-radius:var(--radius-l);padding:18px;background:#fff;text-align:center}.qr-frame img{width:100%;height:auto;display:block;border-radius:var(--radius-s)}.qr-frame p{margin-top:12px;font-size:14px;color:var(--ink-2)}.qr-placeholder{aspect-ratio:1;display:grid;place-items:center;background:var(--wash);border-radius:var(--radius-s);color:var(--ink-3);font-size:14.5px;padding:20px}.bank-rows{border-top:1px solid var(--line)}.bank-row{display:grid;grid-template-columns:150px 1fr auto;grid-gap:12px;gap:12px;align-items:center;padding:13px 0;border-bottom:1px solid var(--line)}.bank-row dt{color:var(--ink-3);font-size:14.5px}.bank-row dd{margin:0;font-weight:600;font-feature-settings:"tnum";font-variant-numeric:tabular-nums;word-break:break-word}.bank-row.is-key dd{font:700 20px/1.2 var(--mono);color:var(--blue)}.copy-btn{border:1px solid var(--line);background:#fff;border-radius:999px;padding:6px 12px;font:500 13px/1 var(--font);cursor:pointer;color:var(--ink-2)}.copy-btn:hover{border-color:var(--ink-3);color:var(--ink)}.pay-warning{margin-top:18px;background:var(--warn-soft);border-radius:var(--radius-s);padding:12px 14px;font-size:15px}.pay-status{display:flex;align-items:center;gap:12px;margin-top:24px;padding:16px 18px;border-radius:var(--radius-m);background:var(--wash);font-weight:500}.pulse{width:12px;height:12px;border-radius:50%;background:var(--cyan);flex-shrink:0;animation:pulse 1.4s ease-in-out infinite}@keyframes pulse{50%{transform:scale(.6);opacity:.5}}.success{border:2px solid var(--ok);border-radius:var(--radius-l);padding:28px;margin-top:28px;background:#fff}.success h2{color:var(--ok);font-size:26px}.cred{margin:18px 0;border-top:1px solid var(--line)}.cred .bank-row dd{font-family:var(--mono)}.demo-pay{margin-top:18px;border:1.5px dashed var(--ink-3);border-radius:var(--radius-m);padding:14px 16px;font-size:14.5px;color:var(--ink-2)}@media (max-width:820px){.pay-grid{grid-template-columns:1fr}.qr-frame{max-width:360px}.bank-row{grid-template-columns:1fr auto}.bank-row dt{grid-column:1/-1}}.learn-header{border-bottom:1px solid var(--line);background:#fff;position:-webkit-sticky;position:sticky;top:0;z-index:20}.learn-header .wrap{max-width:1280px;display:flex;align-items:center;gap:20px;height:62px}.learn-header nav{margin-left:auto;display:flex;gap:6px;align-items:center}.learn-header nav a{text-decoration:none;color:var(--ink-2);font-size:15px;font-weight:500;padding:8px 12px;border-radius:999px}.learn-header nav a:hover,.learn-header nav a[aria-current=page]{background:var(--wash);color:var(--ink)}.avatar,.learn-header nav a.avatar{color:#fff;background:var(--ink);padding:0}.learn-header nav a.avatar:hover{background:var(--blue);color:#fff}.avatar{width:34px;height:34px;border-radius:50%;background:var(--ink);color:#fff;display:grid;place-items:center;font-weight:700;font-size:14px}@media (max-width:560px){.learn-header .brand img{height:24px}.learn-header nav a.hide-sm{display:none}}.dash{max-width:1040px;margin:0 auto;padding:40px 20px 80px}.dash-hello{font-size:clamp(28px,4vw,38px);font-weight:800}.dash-top{display:grid;grid-template-columns:1.4fr 1fr;grid-gap:24px;gap:24px;margin-top:28px}.continue{background:var(--ink);color:#fff;border-radius:var(--radius-l);padding:28px;display:flex;flex-direction:column;gap:14px}.continue small{color:#9fb0d4;font-size:14px}.continue h2{font-size:24px}.continue .btn{align-self:flex-start;background:var(--marker);color:var(--ink)}.continue .btn:hover{background:#ffeb7a}.stat{border:1px solid var(--line);border-radius:var(--radius-l);padding:24px 28px}.stat-num{font:800 44px/1 var(--font);letter-spacing:-.03em;font-feature-settings:lining-nums tabular-nums;font-variant-numeric:lining-nums tabular-nums}.stat-num span{font-size:22px;color:var(--ink-3);font-weight:600}.bar{height:10px;background:var(--wash);overflow:hidden;margin-top:16px}.bar,.bar i{border-radius:99px}.bar i{display:block;height:100%;background:var(--blue)}.stat p{margin-top:12px;color:var(--ink-2);font-size:15px}@media (max-width:760px){.dash-top{grid-template-columns:1fr}}.chapters{margin-top:44px}.chapters h2{font-size:22px;margin-bottom:14px}.chapter{border:1px solid var(--line);border-radius:var(--radius-m);margin-bottom:14px;overflow:hidden}.chapter>summary{list-style:none;cursor:pointer;display:grid;grid-template-columns:52px 1fr auto;grid-gap:14px;gap:14px;align-items:center;padding:18px 20px}.chapter>summary::-webkit-details-marker{display:none}.chapter .num{width:40px;height:40px;border-radius:12px;background:var(--blue-soft);color:var(--blue);display:grid;place-items:center;font-weight:800}.chapter.is-done .num{background:var(--ok-soft);color:var(--ok)}.chapter .t{font-weight:700;font-size:17px}.chapter .s{font-size:14px;color:var(--ink-3);margin-top:2px}.chapter .count{font-size:14px;color:var(--ink-2);white-space:nowrap;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.lesson-list{list-style:none;margin:0;padding:0 0 8px;border-top:1px solid var(--line)}.lesson-list li a,.lesson-list li>span{display:grid;grid-template-columns:52px 1fr auto;grid-gap:14px;gap:14px;align-items:center;padding:12px 20px;text-decoration:none;color:var(--ink)}.lesson-list li a:hover{background:var(--wash)}.lesson-list .ln{color:var(--ink-3);font-size:14px;text-align:center;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.lesson-list .lt{font-size:15.5px}.lesson-list .lm{font-size:13.5px;white-space:nowrap}.lesson-list .lm,.lesson-list .soon{color:var(--ink-3)}.tick{display:inline-grid;place-items:center;width:22px;height:22px;border-radius:50%;background:var(--ok);color:#fff;font-size:12px;margin:0 auto}@media (max-width:560px){.chapter>summary,.lesson-list li a,.lesson-list li>span{grid-template-columns:40px 1fr}.chapter .count,.lesson-list .lm{grid-column:2}}.lesson-layout{display:grid;grid-template-columns:300px minmax(0,1fr);max-width:1280px;margin:0 auto}.lesson-side{border-right:1px solid var(--line);height:calc(100vh - 62px);position:-webkit-sticky;position:sticky;top:62px;overflow-y:auto;padding:20px 0 40px}.lesson-side h2{font-size:13.5px;font-weight:600;color:var(--ink-3);padding:14px 20px 6px;letter-spacing:0}.lesson-side .soon,.lesson-side a{display:flex;gap:10px;padding:8px 20px;font-size:14.5px;color:var(--ink-2);text-decoration:none;line-height:1.4}.lesson-side a:hover{background:var(--wash);color:var(--ink)}.lesson-side a[aria-current=page]{background:var(--blue-soft);color:var(--blue);font-weight:600;box-shadow:inset 3px 0 0 var(--blue)}.lesson-side .n{width:30px;flex-shrink:0;font-feature-settings:"tnum";font-variant-numeric:tabular-nums;color:var(--ink-3)}.lesson-side .done .n{color:var(--ok)}.lesson-side .soon{color:var(--ink-3);opacity:.7}.side-toggle{display:none}@media (max-width:960px){.lesson-layout{grid-template-columns:minmax(0,1fr)}.lesson-side{position:static;height:auto;border-right:0;border-bottom:1px solid var(--line);padding:0}.lesson-side>div{display:none;padding-bottom:12px}.lesson-side.is-open>div{display:block}.side-toggle{display:flex;width:100%;justify-content:space-between;align-items:center;padding:14px 20px;background:#fff;border:0;font:600 15px var(--font);color:var(--ink);cursor:pointer}}.lesson-main{padding:40px 48px 80px}.lesson-article{max-width:720px;margin:0 auto}.crumb{font-size:14.5px}.crumb,.crumb a{color:var(--ink-3)}.lesson-article h1{font-size:clamp(28px,3.6vw,38px);font-weight:800;margin-top:10px}.lesson-meta{margin-top:12px;font-size:14.5px;color:var(--ink-3)}.prose{margin-top:32px;font-size:17.5px;line-height:1.75}.prose>*+*{margin-top:18px}.prose h2{font-size:25px;margin-top:44px;font-weight:800}.prose h3{font-size:20px;margin-top:30px}.prose ol,.prose ul{padding-left:24px}.prose li+li{margin-top:6px}.prose code{font-family:var(--mono);font-size:.88em;background:var(--wash);padding:2px 6px;border-radius:5px}.prose .table-scroll{overflow-x:auto;max-width:100%}.prose table{width:100%;border-collapse:collapse;font-size:15.5px}.prose th{white-space:nowrap}.prose td,.prose th{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}.prose th{background:var(--wash)}.prose blockquote{margin:0;padding-left:18px;border-left:3px solid var(--line);color:var(--ink-2)}.prose input[type=checkbox]{margin-right:8px;accent-color:var(--blue)}.prose li:has(>input[type=checkbox]){list-style:none;margin-left:-22px}.prose figure{margin:22px 0 0;border-radius:var(--radius-m);overflow:hidden;position:relative}.prose figure figcaption{font:600 12.5px/1 var(--font);padding:10px 16px;display:flex;justify-content:space-between;align-items:center}.prose figure pre{margin:0;padding:16px 18px 18px;overflow-x:auto;font:400 14.5px/1.65 var(--mono)}.prose figure pre code{background:none;padding:0;font-size:inherit;white-space:pre-wrap}.code-block{background:var(--ink);color:#e6ecfa}.code-block figcaption{color:#8fa3cf;background:rgba(255,255,255,.05)}.prompt-block{background:var(--blue-soft);border:1.5px solid #c9d8ff}.prompt-block figcaption{color:var(--blue);background:#dce7ff}.prompt-block pre{color:var(--ink);font-family:var(--font);font-size:15.5px;line-height:1.7}.prompt-block pre code{white-space:pre-wrap}.prose figure .copy-btn{position:absolute;top:5px;right:8px;padding:5px 10px;font-size:12.5px}.code-block .copy-btn{background:transparent;color:#c7d3ee;border-color:rgba(255,255,255,.2)}.callout{border-radius:var(--radius-m);padding:16px 18px 16px 20px;margin-top:22px}.callout>*+*{margin-top:8px}.callout-label{display:block;font-size:14px}.callout p{margin:0}.callout-tip{background:var(--ok-soft)}.callout-tip .callout-label{color:var(--ok)}.callout-warn{background:var(--warn-soft)}.callout-warn .callout-label{color:#8a6100}.callout-task{background:#fff;border:2px solid var(--ink)}.callout-task .callout-label{color:var(--ink)}.lesson-done{margin-top:48px;padding:22px 24px;border-radius:var(--radius-l);background:var(--wash);display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}.lesson-done p{font-weight:600}.btn-done{background:var(--ok);color:#fff}.btn-done:hover{background:#0c7542}.pager{display:grid;grid-template-columns:1fr 1fr;grid-gap:16px;gap:16px;margin-top:24px}.pager a{display:block;border:1px solid var(--line);border-radius:var(--radius-m);padding:14px 18px;text-decoration:none;color:var(--ink)}.pager a:hover{border-color:var(--ink-3)}.pager small{display:block;color:var(--ink-3);font-size:13.5px}.pager .next{text-align:right;grid-column:2}.soon-box{margin-top:32px;padding:32px;border-radius:var(--radius-l);background:var(--wash);text-align:center;color:var(--ink-2)}@media (max-width:700px){.lesson-main{padding:28px 20px 60px}.prose{font-size:17px}.pager{grid-template-columns:1fr}.pager .next{grid-column:1}}.account{max-width:640px;margin:0 auto;padding:44px 20px 80px}.panel{border:1px solid var(--line);border-radius:var(--radius-l);padding:26px 28px;margin-top:24px}.panel h2{font-size:19px}.kv{display:grid;grid-template-columns:140px 1fr;grid-gap:10px 16px;gap:10px 16px;margin-top:16px;font-size:15.5px}.kv dt{color:var(--ink-3)}.kv dd{margin:0;font-weight:500;word-break:break-word}.notice{background:var(--warn-soft);border-radius:var(--radius-m);padding:14px 18px;margin-top:20px;font-size:15.5px}@media (prefers-reduced-motion:reduce){*,:after,:before{animation:none!important;transition:none!important}}.btn-danger{background:#fff;color:var(--danger);border-color:#f1c3ba}.btn-danger:hover{border-color:var(--danger)}.admin{display:grid;grid-template-columns:240px minmax(0,1fr);min-height:100vh;background:var(--wash)}.admin-side{background:var(--ink);color:#c9d3ea;padding:22px 0;position:-webkit-sticky;position:sticky;top:0;height:100vh;display:flex;flex-direction:column}.admin-brand{display:block;padding:0 22px 22px;text-decoration:none}.admin-brand img{width:180px;height:auto;display:block}.admin-brand span{display:inline-block;margin-top:10px;font-size:12.5px;font-weight:600;color:var(--ink);background:var(--marker);padding:3px 9px;border-radius:999px}.admin-nav{display:flex;flex-direction:column;gap:2px;padding:0 12px}.admin-nav a{color:#c9d3ea;text-decoration:none;padding:10px 12px;border-radius:10px;font-size:15px;font-weight:500}.admin-nav a:hover{background:rgba(255,255,255,.07);color:#fff}.admin-nav a[aria-current=page]{background:rgba(255,255,255,.12);color:#fff;box-shadow:inset 3px 0 0 var(--marker)}.admin-me{margin-top:auto;padding:18px 22px 0;border-top:1px solid rgba(255,255,255,.1);display:flex;flex-direction:column;gap:6px;font-size:14px}.admin-me span{color:#fff;font-weight:600}.admin-me a{color:#9fb0d4}.admin-main{padding:32px 36px 64px;min-width:0}.admin-head{display:flex;align-items:baseline;gap:16px;flex-wrap:wrap;margin-bottom:22px}.admin-head h1{font-size:28px;font-weight:800}.admin-head p{color:var(--ink-3);font-size:15px}.kpis{display:grid;grid-template-columns:repeat(4,1fr);grid-gap:14px;gap:14px;margin-bottom:14px}.kpi{background:#fff;border:1px solid var(--line);border-radius:var(--radius-m);padding:16px 18px;text-decoration:none;color:var(--ink);display:flex;flex-direction:column;gap:4px}.kpi small{color:var(--ink-3);font-size:13.5px}.kpi b{font-size:26px;font-weight:800;letter-spacing:-.02em;font-feature-settings:tabular-nums lining-nums;font-variant-numeric:tabular-nums lining-nums}.kpi span{font-size:13px;color:var(--ink-3)}.kpi-main{background:var(--ink);color:#fff;border-color:var(--ink)}.kpi-main small{color:#9fb0d4}.kpi-alert{border-color:#f3c84b;background:var(--warn-soft)}a.kpi:hover{border-color:var(--ink-3)}.kpis-small b{font-size:22px}.admin-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-m);padding:20px 22px;margin-top:18px}.admin-card h2{font-size:17px;margin-bottom:14px}.card-head{display:flex;justify-content:space-between;align-items:baseline}.card-head a{font-size:14.5px}.admin-note{font-size:14px;color:var(--ink-3)}.admin-empty{background:#fff;border:1px dashed var(--line);border-radius:var(--radius-m);padding:28px;text-align:center;color:var(--ink-2)}.bars{display:grid;grid-template-columns:repeat(14,minmax(0,1fr));grid-gap:8px;gap:8px;align-items:end;height:200px;padding-top:10px}.bar-col{display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;gap:6px}.bar-col i{width:100%;max-width:34px;background:var(--blue);border-radius:6px 6px 2px 2px;display:block}.bar-col i.zero{background:var(--line)}.bar-val{font-size:12px;color:var(--ink-2);font-weight:600;min-height:14px}.bar-lbl{font-size:11.5px;color:var(--ink-3);font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.toolbar{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:14px}.tabs{display:flex;gap:4px;background:#fff;border:1px solid var(--line);padding:4px}.tabs,.tabs a{border-radius:999px}.tabs a{text-decoration:none;color:var(--ink-2);font-size:14.5px;padding:6px 14px;font-weight:500}.tabs a[aria-current=page]{background:var(--ink);color:#fff}.search{display:flex;gap:8px}.search .input{min-height:38px;width:300px;max-width:100%;font-size:15px;padding:6px 12px}.table-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--radius-m);overflow-x:auto}.admin-table{width:100%;border-collapse:collapse;font-size:14.5px}.admin-table th{text-align:left;font-size:13px;font-weight:600;color:var(--ink-3);padding:12px 14px;border-bottom:1px solid var(--line);white-space:nowrap;background:#fafbfd}.admin-table td{padding:12px 14px;border-bottom:1px solid #edf1f7;vertical-align:top}.admin-table tr:last-child td{border-bottom:0}.admin-table td small{display:block;color:var(--ink-3);font-size:13px;margin-top:2px}.admin-table code{font-family:var(--mono);font-size:13.5px;background:var(--wash);padding:2px 6px;border-radius:5px}.admin-table .num{font-feature-settings:"tnum";font-variant-numeric:tabular-nums;white-space:nowrap}.admin-table .actions{min-width:210px}.content-cell{max-width:280px;word-break:break-word;color:var(--ink-2)}.badge{display:inline-block;font-size:12.5px;font-weight:600;padding:3px 10px;border-radius:999px;white-space:nowrap}.st-ok{background:var(--ok-soft);color:var(--ok)}.st-wait{background:var(--warn-soft);color:#8a6100}.st-off{color:var(--ink-3)}.mini-bar,.st-off{background:var(--wash)}.mini-bar{display:block;width:70px;height:5px;border-radius:9px;margin-top:6px;overflow:hidden}.mini-bar i{display:block;height:100%;background:var(--blue)}.af+.af{margin-top:6px}.af-form{display:flex;gap:6px;flex-wrap:wrap;align-items:center}.af-msg{margin-top:6px;font-size:13.5px;padding:8px 10px;border-radius:8px}.af-err{background:#fdecea;color:var(--danger)}.af-ok{background:var(--ok-soft);color:#0b5e36;flex-direction:column}.af-cred,.af-ok{display:flex;gap:6px}.af-cred{flex-wrap:wrap;align-items:center}.af-cred code{font-family:var(--mono);background:#fff;padding:3px 8px;border-radius:6px;color:var(--ink);font-size:13.5px}.input-sm{min-height:34px;width:130px;padding:4px 10px;font:500 14px var(--mono);text-transform:uppercase}.add-student summary{cursor:pointer;font-weight:700;font-size:16px}.add-student[open] summary{margin-bottom:8px}.add-grid{display:grid;grid-template-columns:1fr 1fr 1fr;grid-gap:10px;gap:10px;width:100%;margin:12px 0 4px}.add-student .af-form{flex-direction:column;align-items:flex-start}.check-row{display:grid;grid-template-columns:30px 1fr;grid-gap:12px;gap:12px;padding:14px 0;border-top:1px solid var(--line)}.check-row:first-of-type{border-top:0}.check-row b{font-size:15.5px}.check-row p{font-size:14.5px;color:var(--ink-2);margin-top:2px}.check{width:26px;height:26px;border-radius:50%;display:grid;place-items:center;font-weight:800;font-size:14px}.check.is-ok{background:var(--ok-soft);color:var(--ok)}.check.is-bad{background:var(--warn-soft);color:#8a6100}.admin-pager{display:flex;gap:16px;align-items:center;justify-content:flex-end;margin-top:14px;font-size:14.5px;color:var(--ink-3)}@media (max-width:1000px){.kpis{grid-template-columns:1fr 1fr}}@media (max-width:820px){.admin{grid-template-columns:1fr}.admin-side{position:static;height:auto;padding:14px 0 10px;min-width:0}.admin-brand{padding-bottom:12px}.admin-nav{flex-direction:row;overflow-x:auto;padding-bottom:4px}.admin-nav a{white-space:nowrap}.admin-me{display:none}.admin-main{padding:22px 16px 48px}.add-grid{grid-template-columns:1fr}.bars{gap:4px}}.kpi{min-width:0}@media (max-width:560px){.kpis{grid-template-columns:1fr 1fr;gap:10px}.kpi{padding:12px 14px}.kpi b,.kpis-small b{font-size:19px}.admin-head h1{font-size:24px}.bar-lbl{font-size:9.5px}}.code-block pre code{white-space:pre}.lesson-main{min-width:0}.prose li,.prose p,.prose td{overflow-wrap:anywhere}.cw{position:fixed;right:20px;bottom:20px;z-index:60;display:flex;flex-direction:column;align-items:flex-end;gap:12px;font-size:15px}.cw-launch{position:relative;padding:0;border:0;background:var(--paper);box-shadow:0 10px 28px rgba(20,33,61,.28);cursor:pointer;transition:transform .2s ease}.cw-launch,.cw-launch img{width:64px;height:64px;border-radius:50%}.cw-launch img{display:block}.cw-launch:hover{transform:translateY(-2px) scale(1.04)}.cw-launch .cw-dot{position:absolute;right:3px;bottom:3px;width:14px;height:14px;border:2px solid #fff}.cw-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:#22c55e;margin-right:6px;vertical-align:1px}.cw-teaser{position:relative;max-width:250px;background:var(--paper);border:1px solid var(--line);border-radius:16px 16px 4px 16px;box-shadow:0 10px 28px rgba(20,33,61,.16);animation:cw-pop .3s ease}.cw-teaser-text{display:block;text-align:left;font:inherit;color:var(--ink);padding:12px 30px 12px 14px;line-height:1.45}.cw-teaser-close,.cw-teaser-text{border:0;background:none;cursor:pointer}.cw-teaser-close{position:absolute;top:4px;right:6px;font-size:18px;color:var(--ink-3);line-height:1;padding:4px}.cw-panel{width:min(400px,calc(100vw - 32px));height:min(620px,calc(100vh - 120px));height:min(620px,calc(100dvh - 120px));display:flex;flex-direction:column;background:var(--paper);border:1px solid var(--line);border-radius:20px;box-shadow:0 24px 60px rgba(20,33,61,.28);overflow:hidden;animation:cw-pop .22s ease}.cw-head{display:flex;align-items:center;gap:10px;padding:12px 10px 12px 14px;background:linear-gradient(135deg,var(--blue) 0,var(--blue-deep) 100%);color:#fff}.cw-hoc-tap .cw-head{background:var(--ink)}.cw-head img{width:44px;height:44px;border-radius:50%;background:#fff;flex:none}.cw-id{flex:1 1;min-width:0;display:flex;flex-direction:column;line-height:1.3}.cw-id strong{font-size:16px}.cw-id span{font-size:12.5px;opacity:.9;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.cw-icon{flex:none;width:36px;height:36px;display:grid;place-items:center;border:0;border-radius:10px;background:transparent;color:#fff;cursor:pointer}.cw-icon:hover{background:rgba(255,255,255,.16)}.cw-list{flex:1 1;overflow-y:auto;padding:16px 14px 8px;background:var(--wash);display:flex;flex-direction:column;gap:12px;overscroll-behavior:contain}.cw-row{display:flex;gap:8px;align-items:flex-start}.cw-mini{width:28px;height:28px;border-radius:50%;flex:none;background:#fff}.cw-msg{max-width:86%;padding:10px 13px;border-radius:16px;line-height:1.55;overflow-wrap:anywhere}.cw-bot{background:var(--paper);border:1px solid var(--line);border-top-left-radius:4px;min-width:0}.cw-user{align-self:flex-end;background:var(--blue);color:#fff;border-top-right-radius:4px;white-space:pre-wrap}.cw-bot p{margin:0 0 8px}.cw-bot ol:last-child,.cw-bot p:last-child,.cw-bot ul:last-child{margin-bottom:0}.cw-bot ol,.cw-bot ul{margin:0 0 8px;padding-left:20px}.cw-bot li{margin:2px 0}.cw-bot a{font-weight:600}.cw-bot code{font-family:var(--mono);font-size:13px;background:var(--wash);padding:1px 5px;border-radius:5px}.cw-code{margin:8px 0;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#0f172a}.cw-code figcaption{display:flex;justify-content:space-between;align-items:center;padding:5px 8px 5px 12px;font-size:12px;color:#cbd5e1;background:#1e293b}.cw-code figcaption button{border:0;background:rgba(255,255,255,.12);color:#fff;border-radius:6px;padding:3px 9px;font:inherit;cursor:pointer}.cw-code pre{margin:0;padding:10px 12px;overflow-x:auto;max-height:280px}.cw-code pre code{background:none;padding:0;color:#e2e8f0;font-size:12.5px;white-space:pre}.cw-code.is-prompt{background:var(--warn-soft);border-color:#f1d77a}.cw-code.is-prompt figcaption{background:var(--marker);color:var(--ink);font-weight:600}.cw-code.is-prompt figcaption button{background:rgba(20,33,61,.12);color:var(--ink)}.cw-code.is-prompt pre code{color:var(--ink);font-family:var(--font);font-size:13.5px;white-space:pre-wrap}.cw-suggest{display:flex;flex-wrap:wrap;gap:8px;padding-left:36px}.cw-suggest button{border:1px solid var(--blue);background:var(--paper);color:var(--blue);border-radius:999px;padding:6px 12px;font:inherit;font-size:13.5px;cursor:pointer;text-align:left}.cw-suggest button:hover{background:var(--blue-soft)}.cw-typing{display:inline-flex;gap:4px;padding:4px 0}.cw-typing i{width:7px;height:7px;border-radius:50%;background:var(--ink-3);animation:cw-blink 1.2s ease-in-out infinite}.cw-typing i:nth-child(2){animation-delay:.15s}.cw-typing i:nth-child(3){animation-delay:.3s}.cw-form{display:flex;gap:8px;align-items:flex-end;padding:10px 12px 4px;border-top:1px solid var(--line);background:var(--paper)}.cw-form textarea{flex:1 1;resize:none;min-height:42px;max-height:120px;field-sizing:content;padding:10px 12px;border:1px solid var(--line);border-radius:12px;font:inherit;font-size:16px;line-height:1.4;color:var(--ink)}.cw-form textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px var(--blue-soft)}.cw-form button{flex:none;width:42px;height:42px;display:grid;place-items:center;border:0;border-radius:12px;background:var(--blue);color:#fff;cursor:pointer}.cw-form button:disabled{background:var(--line);color:var(--ink-3);cursor:default}.cw-note{margin:0;padding:4px 12px 10px;font-size:11.5px;color:var(--ink-3);text-align:center;background:var(--paper)}@keyframes cw-pop{0%{opacity:0;transform:translateY(10px) scale(.98)}to{opacity:1;transform:none}}@keyframes cw-blink{0%,80%,to{opacity:.3;transform:translateY(0)}40%{opacity:1;transform:translateY(-3px)}}@media (max-width:520px){.cw{right:12px;bottom:12px}.cw:has(.cw-panel){left:0;right:0;top:0;bottom:0;gap:0}.cw-panel{width:100%;height:100%;border-radius:0;border:0}.cw:has(.cw-panel) .cw-launch{display:none}body:has(.cw-panel){overflow:hidden}.cw-launch,.cw-launch img{width:56px;height:56px}}@media (prefers-reduced-motion:reduce){.cw-panel,.cw-teaser,.cw-typing i{animation:none}.cw-launch{transition:none}}@media print{.cw{display:none}}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(260px,100%),1fr));grid-gap:0 18px;gap:0 18px}.stat-grid .stat-num{font-size:34px;margin:0 0 6px}.stat-grid .stat-num span{font-size:15px}.chat-item{margin-top:10px;padding:14px 18px}.chat-item summary{cursor:pointer;display:flex;flex-direction:column;gap:4px;list-style:none}.chat-item summary::-webkit-details-marker{display:none}.chat-item summary b{font-weight:600;overflow-wrap:anywhere}.chat-meta{font-size:13px;color:var(--ink-3);display:flex;flex-wrap:wrap;gap:6px;align-items:center}.chat-answer{margin-top:12px;padding:12px 14px;background:var(--wash);border-radius:var(--radius-s);white-space:pre-wrap;font-size:15px;overflow-wrap:anywhere}.tabs-sub a[aria-current=page]{background:var(--blue-soft);color:var(--blue-deep)}.ai-status{margin:14px 0 0;padding:12px 16px;border-radius:var(--radius-m);border:1px solid var(--line);background:#fff;font-size:15px}.ai-status.is-live{background:var(--ok-soft);border-color:#b6e3c9}.ai-status.is-mock{background:var(--warn-soft);border-color:#f1d77a}.ai-status.is-off{background:#fdecea;border-color:#f3c2ba}.ai-status small{color:var(--ink-3)}.ai-modes{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));grid-gap:10px;gap:10px}.ai-mode{position:relative;display:flex;flex-direction:column;gap:2px;padding:12px 14px 12px 40px;border:1.5px solid var(--line);border-radius:var(--radius-m);cursor:pointer;background:#fff}.ai-mode input{position:absolute;left:14px;top:15px;accent-color:var(--blue);width:16px;height:16px}.ai-mode small{color:var(--ink-3);font-size:13px;line-height:1.35}.ai-mode.is-on{border-color:var(--blue);background:var(--blue-soft)}.ai-providers{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(340px,100%),1fr));grid-gap:0 18px;gap:0 18px}.ai-provider.is-active{border-color:var(--blue);box-shadow:0 0 0 3px var(--blue-soft)}.ai-provider-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px}.ai-provider-head h2{margin:0}.ai-field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}.ai-label{font-size:14px;font-weight:600;gap:8px}.ai-label,.ai-sub{display:flex;flex-wrap:wrap;align-items:center}.ai-sub{font-size:13px;color:var(--ink-3);gap:6px 16px}.ai-check{display:inline-flex;gap:6px;align-items:center;cursor:pointer;color:var(--ink-2)}.ai-check input{accent-color:var(--blue);width:16px;height:16px}.ai-check-big{font-size:15px;margin-bottom:12px;color:var(--ink)}.ai-test{display:flex;flex-wrap:wrap;gap:8px 12px;align-items:center;padding-top:4px}.ai-test small{color:var(--ink-3);font-size:12.5px;flex:1 1;min-width:180px}.ai-provider .af-msg{margin-top:10px;overflow-wrap:anywhere}.ai-bots{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(280px,100%),1fr));grid-gap:0 24px;gap:0 24px}.ai-save{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:18px;position:-webkit-sticky;position:sticky;bottom:0;padding:12px 0;background:linear-gradient(to top,var(--wash) 70%,transparent)}.ai-save .af-msg{margin:0}.link-btn{border:0;background:none;padding:0;margin:0 0 18px;color:var(--blue);font:inherit;font-size:15px;font-weight:600;cursor:pointer;text-decoration:underline;text-underline-offset:3px}.coupon-row{display:flex;gap:8px}.coupon-row .input{flex:1 1;min-width:0;text-transform:uppercase;letter-spacing:.04em}.coupon-row .btn{flex:none}.hint-ok{color:var(--ok);font-weight:600}.hint-err{color:var(--danger)}.order-summary .line-discount{color:var(--ok)}.order-summary .line-discount small{display:block;color:var(--ink-3);font-size:13px;font-weight:400}.price-old{text-decoration:line-through;color:var(--ink-3);font-weight:500;margin-right:8px;font-size:.7em}.sale-tag{display:inline-block;background:var(--danger);color:#fff;font-size:13px;font-weight:700;padding:3px 10px;border-radius:999px;margin-bottom:8px}.bank-note{display:block;font-size:13px;color:var(--ok);font-weight:500}.txt-danger{color:var(--danger)!important}.refund-box summary{cursor:pointer;color:var(--danger);font-size:14px;font-weight:600}.refund-box .af-form{display:flex;flex-direction:column;align-items:flex-start;gap:6px;margin-top:8px}.refund-box .input-sm{width:100%;max-width:220px;text-transform:none;font-family:var(--font)}.tabs-scroll{overflow-x:auto;max-width:100%;scrollbar-width:none}.tabs-scroll a{white-space:nowrap}.range-form{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:14px;color:var(--ink-2)}.range-form label{display:inline-flex;gap:6px;align-items:center}.input-date{min-height:36px;padding:4px 10px;font-size:14px;width:auto}.delta{font-size:12.5px!important;color:var(--ink-3)}.delta.up{color:var(--ok)!important}.delta.down{color:var(--danger)!important}.kpi-main .delta{color:#9fb0d4!important}.kpi-main .delta.up{color:#6ee7a8!important}.kpi-main .delta.down{color:#fca5a5!important}.card-head .tabs{padding:3px}.card-head .tabs a{padding:4px 12px;font-size:13.5px}.rv-chart{display:flex;gap:3px;align-items:stretch;height:220px;padding-top:10px;overflow-x:auto}.rv-col{flex:1 1;min-width:8px;display:flex;flex-direction:column;gap:6px}.rv-bars{flex:1 1;display:flex;gap:2px;align-items:flex-end;justify-content:center}.rv-bars i{flex:1 1;max-width:34px;background:var(--blue);border-radius:4px 4px 1px 1px;display:block}.rv-bars i.zero{background:var(--line)}.rv-bars i.ref{background:var(--danger);opacity:.75}.rv-lbl{font-size:11px;color:var(--ink-3);text-align:center;white-space:nowrap;min-height:14px;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.lg{display:inline-block;width:10px;height:10px;border-radius:3px;margin:0 4px 0 10px;vertical-align:-1px}.lg:first-child{margin-left:0}.lg-in{background:var(--blue)}.lg-ref{background:var(--danger);opacity:.75}.rv-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(420px,100%),1fr));grid-gap:0 18px;gap:0 18px}.admin-table td small code{font-size:12px}.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(220px,100%),1fr));grid-gap:0 16px;gap:0 16px;width:100%}.form-wide{grid-column:1/-1}.input-code{text-transform:uppercase;letter-spacing:.03em;font-family:var(--mono)}.af:not(.af-inline) .af-form{display:block}.af:not(.af-inline) .af-form>.btn{margin-top:4px}.edit-box summary,.refund-box summary{cursor:pointer;font-size:14px;font-weight:600;color:var(--blue)}.edit-box[open]{min-width:min(560px,80vw)}.edit-box .af{margin-top:10px}.row-off td{opacity:.6}.plain-list{margin:12px 0 0;padding-left:18px;font-size:14.5px;color:var(--ink-2)}.link-box{display:flex;flex-wrap:wrap;gap:8px;align-items:center;overflow-wrap:anywhere}.follow{margin:0 0 14px;padding:8px 12px;border-radius:10px;background:var(--blue-soft);font-size:14.5px}.follow.is-due{background:var(--warn-soft);color:#7a5400}textarea.input{resize:vertical;min-height:80px;font:inherit;line-height:1.5;padding:10px 12px}.timeline{list-style:none;margin:0;padding:0 0 0 16px;border-left:2px solid var(--line);display:flex;flex-direction:column;gap:14px}.timeline li{position:relative}.timeline li:before{content:"";position:absolute;left:-22px;top:6px;width:10px;height:10px;border-radius:50%;background:var(--blue);border:2px solid #fff}.timeline li.tl-system:before{background:var(--ink-3)}.timeline li.tl-call:before{background:var(--ok)}.timeline li.tl-zalo:before{background:var(--cyan)}.tl-meta{font-size:12.5px;color:var(--ink-3)}.timeline p{margin:2px 0 0;white-space:pre-wrap;overflow-wrap:anywhere;font-size:15px}.timeline li.tl-system p{color:var(--ink-2);font-size:14px}.detail-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);grid-gap:0 18px;gap:0 18px;align-items:start}@media (max-width:1100px){.detail-grid{grid-template-columns:minmax(0,1fr)}}.info-list{display:grid;grid-template-columns:auto 1fr;grid-gap:6px 16px;gap:6px 16px;margin:0;font-size:14.5px}.info-list dt{color:var(--ink-3)}.info-list dd{margin:0;overflow-wrap:anywhere}.chapter-progress{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px;font-size:14px}.chapter-progress li{display:grid;grid-template-columns:minmax(0,1fr) 120px 48px;grid-gap:10px;gap:10px;align-items:center}.chapter-progress .mini-bar{width:100%;margin:0}.tag{display:inline-block;background:var(--wash);border:1px solid var(--line);border-radius:999px;padding:1px 9px;font-size:12.5px;color:var(--ink-2);margin:2px 4px 0 0}.kpi b.kpi-text{font-size:16px;font-weight:700}.btn-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.btn-row .af+.af{margin-top:0}.tab-count{display:inline-block;min-width:18px;padding:0 6px;border-radius:999px;background:var(--wash);color:var(--ink-3);font-size:12px;margin-left:4px;text-align:center}.tabs a[aria-current=page] .tab-count{background:rgba(255,255,255,.2);color:#fff}.crm-stages{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));grid-gap:10px;gap:10px;margin-bottom:16px}.crm-stage{background:#fff;border:1.5px solid var(--line);border-radius:var(--radius-m);padding:10px 14px;text-decoration:none;color:var(--ink);display:flex;flex-direction:column}.crm-stage small{color:var(--ink-3);font-size:13px}.crm-stage b{font-size:22px;font-weight:800}.crm-stage.is-on{border-color:var(--blue);background:var(--blue-soft)}.crm-due.has-due{border-color:#f3c84b;background:var(--warn-soft)}.crm-due.has-due.is-on{border-color:#c99400}.txt-due{color:#9a6700!important;font-weight:600}.tag-filter{font-size:13.5px;color:var(--ink-3);margin:0 0 14px;display:flex;flex-wrap:wrap;gap:4px;align-items:center}.tag-filter .tag{text-decoration:none}.tag-on{background:var(--ink)!important;color:#fff!important;border-color:var(--ink)!important}.input-select{width:auto;max-width:170px;text-transform:none;font-family:var(--font)}.cell-note{max-width:280px;font-size:14px}.kanban{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(240px,1fr);grid-gap:12px;gap:12px;overflow-x:auto;padding-bottom:8px;align-items:start}.kb-col{background:#e9eef6;border-radius:var(--radius-m);padding:10px;display:flex;flex-direction:column;gap:8px;min-height:120px}.kb-col h2{font-size:14.5px;margin:2px 4px 4px;display:flex;justify-content:space-between}.kb-col h2 span{color:var(--ink-3);font-weight:600}.kb-col.st-da_mua{background:#e3f3ea}.kb-col.st-cho_thanh_toan{background:#fbf1d3}.kb-card{background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px 12px;display:flex;flex-direction:column;gap:4px;font-size:14px}.kb-card a{text-decoration:none;color:var(--ink)}.kb-card small{color:var(--ink-3);overflow-wrap:anywhere}.kb-card p{margin:2px 0;color:var(--ink-2);font-size:13px}.kb-card .af-form{margin-top:4px}.field .hint-ok{color:var(--ok);font-weight:600}.field .hint-err{color:var(--danger)}.bar-col{min-width:0}.form-sub{font-size:15.5px;margin:18px 0 10px}