:root{--growth-blue:#285c98;--growth-light:#eaf2fb;--growth-line:#dce3ea;--growth-ink:#253344;--growth-muted:#758292}
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20px 80px #20324433;color:var(--growth-ink)}.support-modal::backdrop{background:#142c4266}.support-modal .modal-inner{padding:28px}.support-modal img{display:block;width:200px;max-width:100%;margin:20px auto}.support-modal .close-line{display:flex;justify-content:space-between;align-items:center}.support-modal .close-line button{border:0;background:transparent;font-size:22px;cursor:pointer}.support-modal p{line-height:1.9;color:#67798a}.feature-shell{max-width:1200px;margin:30px auto 90px;padding:0 28px}.feature-hero{margin-bottom:26px;display:flex;justify-content:space-between;align-items:flex-end;gap:20px}.feature-eyebrow{font-size:12px;color:var(--growth-blue);letter-spacing:.12em}.feature-hero h1{font-size:32px;line-height:1.4;margin:8px 0}.feature-hero p{color:var(--growth-muted);line-height:1.8;margin:0}.feature-nav{display:flex;gap:8px;border-bottom:1px solid var(--growth-line);padding-bottom:14px;margin-bottom:26px;overflow:auto;scrollbar-width:thin}.feature-nav a{white-space:nowrap;padding:9px 14px;border-radius:999px;text-decoration:none;color:#6e7b8a;font-size:14px}.feature-nav a.active{color:var(--growth-blue);background:var(--growth-light);font-weight:600}.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.feature-card{border:1px solid var(--growth-line);background:white;border-radius:16px;padding:24px;min-width:0}.feature-card h3{font-size:19px;margin:12px 0;line-height:1.5}.feature-card p{color:#6c7c8d;font-size:14px;line-height:1.9;overflow-wrap:anywhere}.feature-card img.cover{width:100%;height:170px;object-fit:cover;border-radius:10px}.feature-card .meta{font-size:12px;display:flex;gap:10px;flex-wrap:wrap;color:#84909c}.feature-card .points-price{font-size:24px;font-weight:700;color:var(--growth-blue)}.feature-card .card-bottom{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:22px}.feature-tag{display:inline-block;font-size:11px;padding:4px 8px;border-radius:5px;color:var(--growth-blue);background:var(--growth-light);margin:2px 6px 2px 0}.feature-empty{border:1px dashed #d4dde5;background:#fff9;border-radius:16px;padding:42px 25px;text-align:center;line-height:1.9;color:#7c8996}.feature-note{background:#eef4fb;color:#5d7591;border-radius:10px;padding:13px 17px;font-size:13px;line-height:1.8;margin:16px 0}.feature-error{color:#a65348;background:#fff0ec;padding:12px 16px;border-radius:8px;line-height:1.7}.feature-loading{padding:35px;text-align:center;color:#8794a2}.feature-form{max-width:850px}.feature-form label{display:block;font-size:13px;color:#53677a;margin-bottom:7px}.feature-form input:not([type=checkbox]),.feature-form textarea,.feature-form select{width:100%;box-sizing:border-box;min-height:43px;border:1px solid #d3dde6;border-radius:8px;background:white;padding:10px 12px;color:#2a3b4d;font:inherit;font-size:14px}.feature-form textarea{min-height:110px;line-height:1.85;resize:vertical}.feature-form input:focus,.feature-form textarea:focus{outline:2px solid #83afd655;outline-offset:1px}.feature-form .fields{display:grid;grid-template-columns:1fr 1fr;gap:18px}.feature-form .wide{grid-column:1/-1}.feature-form .actions{display:flex;align-items:center;gap:12px;margin-top:24px;flex-wrap:wrap}.feature-form .check{display:flex;align-items:center;gap:10px;font-size:14px;margin-top:8px}.feature-form .check input{width:16px;height:16px}.feature-form small{display:block;color:#8893a0;line-height:1.7;margin-top:6px;font-size:12px}.feature-button{display:inline-flex;align-items:center;justify-content:center;background:var(--growth-blue);color:white;border:1px solid var(--growth-blue);border-radius:8px;min-height:40px;padding:9px 17px;font:inherit;font-size:13px;text-decoration:none;cursor:pointer}.feature-button:disabled{opacity:.5;cursor:wait}.feature-button.secondary{background:white;color:var(--growth-blue);border-color:#ccdae8}.feature-button.danger{background:#b35d50;border-color:#b35d50}.feature-toolbar{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-bottom:20px}.feature-toolbar input,.feature-toolbar select{border:1px solid #d4dde6;border-radius:8px;background:white;padding:10px 12px;min-width:140px;font:inherit;font-size:14px}.feature-toolbar input{flex:1}.feature-toolbar h2{margin:0 auto 0 0}.feature-table-wrap{overflow:auto}.feature-table{width:100%;border-collapse:collapse;font-size:13px;background:white;border:1px solid var(--growth-line);border-radius:10px}.feature-table th,.feature-table td{padding:14px 12px;text-align:left;border-bottom:1px solid #e7edf2;line-height:1.7;vertical-align:top}.feature-table th{color:#81909f;background:#f6f9fc;white-space:nowrap;font-weight:500}.feature-table td .feature-button{min-height:31px;padding:4px 9px;font-size:12px;margin:3px}.feature-table .mono{font-family:ui-monospace,monospace;font-size:11px;overflow-wrap:anywhere}.feature-stat{background:white;border:1px solid #d9e3ed;border-radius:16px;padding:22px}.feature-stat strong{font-size:36px;color:var(--growth-blue);display:block}.feature-stat small{color:#8593a0}.feature-split{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(240px,1fr);gap:24px}.feature-panel{border:1px solid var(--growth-line);border-radius:16px;background:white;padding:26px;margin-bottom:22px}.feature-panel h2{font-size:20px;margin:0 0 18px}.feature-panel h3{margin-top:0}.ai-composer{background:white;border:1px solid #d8e3ee;border-radius:18px;padding:22px;box-shadow:0 5px 20px #23476f06}.ai-composer textarea{width:100%;border:0;resize:vertical;min-height:100px;font:inherit;font-size:16px;line-height:1.9;color:#31465b;outline:0}.ai-composer .composer-foot{border-top:1px solid #edf0f4;padding-top:15px;display:flex;align-items:center;gap:12px;justify-content:space-between}.ai-composer .composer-foot small{font-size:12px;line-height:1.7;color:#8a97a5}.ai-examples{display:flex;gap:8px;flex-wrap:wrap;margin:15px 0 25px}.ai-examples button{border:1px solid #dce5ee;background:#f7fafc;color:#6a7e92;border-radius:999px;padding:7px 12px;cursor:pointer;font:inherit;font-size:12px}.ai-status{font-size:12px;color:#8a98a6;white-space:nowrap}.ai-status.ready{color:#357b6b}.ai-response-head{display:flex;align-items:center;gap:12px;justify-content:space-between;margin:25px 0 15px}.ai-response-head h2{font-size:20px;margin:0}.ai-reasons{padding-left:18px;color:#738394;font-size:13px;line-height:1.9}.benefit-cover-fallback{height:150px;border-radius:10px;background:linear-gradient(135deg,#edf4fc,#e2eaf5);display:flex;align-items:center;justify-content:center;font-size:45px;color:#6286b0}.order-status{font-size:12px;color:#4777a8}.source-admin-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.source-admin-grid img{width:100%;border-radius:8px}.feature-code{background:#f1f5f9;padding:18px;border-radius:10px;line-height:1.8;overflow-wrap:anywhere;font-family:ui-monospace,monospace;font-size:13px}.feature-tabs-mini{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:20px}.feature-tabs-mini a{padding:9px 14px;border:1px solid #d7e2ed;color:#64809b;border-radius:8px;text-decoration:none}.preview-image{width:100%;max-height:230px;object-fit:contain;background:#f3f6f9;border:1px solid #e5eaf0;border-radius:9px}.mobile-work-links{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}.mobile-work-links a{font-size:13px;color:var(--growth-blue);text-decoration:none;padding:7px 10px;border:1px solid #dbe5ef;border-radius:6px}button:focus-visible,a:focus-visible{outline:3px solid #84afd4;outline-offset:3px}
@media(max-width:1000px){.feature-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.home-intro{align-items:flex-start;flex-direction:column}.assistant-launch{width:100%;box-sizing:border-box}.feature-split{grid-template-columns:1fr}}
@media(max-width:720px){.home-intro,.site-banner{width:calc(100% - 32px)}.home-intro{margin-top:20px;gap:14px}.home-intro h1{font-size:23px}.home-intro p{font-size:13px}.home-intro small{font-size:10px}.assistant-launch{font-size:16px;padding:15px 18px;border-radius:12px;gap:5px}.site-banner img{aspect-ratio:2/1}.feature-shell{padding:0 16px;margin-top:20px;margin-bottom:100px}.feature-hero{display:block}.feature-hero h1{font-size:25px}.feature-hero p{font-size:13px}.feature-nav{margin-top:18px;gap:3px;padding-bottom:10px}.feature-nav a{font-size:13px;padding:8px 12px}.feature-grid{grid-template-columns:1fr;gap:14px}.feature-panel,.feature-card{padding:20px;border-radius:13px}.feature-form .fields{grid-template-columns:1fr}.feature-form .wide{grid-column:auto}.feature-toolbar input{width:100%;min-width:0}.feature-toolbar{gap:8px}.feature-table{min-width:560px}.feature-table th,.feature-table td{padding:11px 9px}.support-fab{bottom:82px;right:15px;padding:10px 14px;font-size:12px}.plain-page .support-fab,.teacher-page .support-fab{bottom:20px}.feature-hero .feature-button{margin-top:14px}.ai-composer{padding:17px}.ai-composer textarea{font-size:15px}.ai-composer .composer-foot{align-items:flex-start}.source-admin-grid{grid-template-columns:1fr}.feature-card img.cover{height:190px}.top-actions .quiet-button{font-size:12px}.feature-topbar .topbar-inner{padding:12px 16px;gap:12px}.feature-topbar .brand img{width:46px;height:46px}.feature-topbar .brand-text strong{font-size:16px}.feature-topbar .brand-text small{font-size:10px}.feature-topbar .top-actions{gap:10px;font-size:12px}.feature-topbar .top-actions>a:not(.feature-button){font-size:12px}.admin-nav a{white-space:nowrap;font-size:12px;padding:10px 12px}.ai-status{white-space:normal}.feature-hero .ai-status{margin-top:10px}}

.feature-card details{margin:16px 0;background:#f5f8fc;padding:12px;border-radius:9px}.feature-card summary{cursor:pointer;color:var(--growth-blue);font-size:13px;font-weight:600}.feature-card details p{font-size:12px;margin:9px 0}.ai-constraints{display:flex;gap:6px;flex-wrap:wrap;margin:12px 0}
@media(max-width:720px){.feature-topbar .topbar-inner{height:auto;min-height:60px;flex-wrap:wrap;box-sizing:border-box}.feature-topbar .brand{min-width:0;max-width:100%}.feature-topbar .top-actions{width:100%;justify-content:flex-end;white-space:normal;flex-wrap:wrap;margin-top:-7px;margin-bottom:2px}.feature-topbar #teacherAccount,.feature-topbar #opsAccount{max-width:55vw;text-overflow:ellipsis;overflow:hidden;white-space:nowrap}.ai-composer .feature-button{white-space:nowrap;flex-shrink:0}}

@media(max-width:1380px) and (min-width:721px){.topbar:not(.feature-topbar) .topbar-inner{gap:15px}.topbar:not(.feature-topbar) .main-nav{gap:16px;margin-left:0}.topbar:not(.feature-topbar) .top-actions{gap:10px}.topbar:not(.feature-topbar) .top-actions>a{font-size:12px}.topbar:not(.feature-topbar) #aboutButton{display:none}.topbar:not(.feature-topbar) .user-name{max-width:80px}}
@media(max-width:720px){.topbar:not(.feature-topbar) .topbar-inner{height:auto;min-height:58px;flex-wrap:wrap;padding-top:8px;padding-bottom:9px}.topbar:not(.feature-topbar) .top-actions{width:100%;justify-content:flex-end;flex-wrap:wrap;gap:12px;white-space:normal;margin-top:-5px}.topbar:not(.feature-topbar) .auth-slot{display:flex;font-size:12px}.topbar:not(.feature-topbar) .user-name{display:none}.topbar:not(.feature-topbar) .brand-text strong{font-size:15px}.topbar:not(.feature-topbar) .top-actions>a{font-size:12px}}

.music-track-list{margin-top:18px;display:grid;gap:10px}.music-track-heading{font-size:13px;color:#324d6a}.music-track{padding:14px;border:1px solid #dce5ee;background:white;border-radius:9px}.music-track>strong,.music-track>small{display:block}.music-track>strong{font-size:14px;margin-bottom:6px;color:#294c72}.music-track>small{font-size:11px;line-height:1.8;color:#7a8998;overflow-wrap:anywhere}.music-track .feature-button{margin:10px 0;min-height:36px}.music-track p{font-size:12px;line-height:1.8}.music-track .feature-button:focus-visible{outline:3px solid #80aacd;outline-offset:3px}

@media(max-width:720px){.music-track .feature-button{min-height:44px;width:100%;box-sizing:border-box}.music-track-list{margin-top:12px}}