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var(--line);background:var(--surface);width:100%;color:var(--muted);text-align:left;border-radius:11px;align-items:center;gap:9px;padding:9px 11px;font-size:13px;display:flex}:root[data-theme] .sidebar-search span{flex:1}:root[data-theme] .sidebar-search:hover{border-color:var(--control-border);color:var(--ink)}:root[data-theme] kbd{border:1px solid var(--line);background:var(--paper);color:var(--muted);border-radius:6px;align-items:center;gap:2px;padding:4px 6px;font:600 10.5px/1 Barlow,Arial,sans-serif;display:inline-flex}:root[data-theme] .side-nav{flex-direction:column;flex:1;gap:8px;min-height:0;margin:2px -6px 0;padding:0 6px;display:flex;overflow-y:auto}:root[data-theme] .side-label{letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin:4px 0;padding:0 10px;font-size:10.5px;font-weight:600;display:block}:root[data-theme] .nav-item{min-height:35px;color:var(--muted);border-radius:10px;align-items:center;gap:11px;margin:1px 0;padding:7px 10px;font-size:14px;font-weight:500;transition:background .15s,color .15s;display:flex;position:relative}:root[data-theme] .nav-item>span:first-of-type{flex:1}:root[data-theme] .nav-item:hover{background:color-mix(in srgb, var(--ink) 6%, transparent);color:var(--ink)}:root[data-theme] .nav-item.active{background:color-mix(in srgb, var(--green) 14%, transparent);color:var(--ink)}:root[data-theme] .nav-item.active:before{content:"";background:linear-gradient(var(--green), var(--button-end));border-radius:3px;width:3px;position:absolute;top:9px;bottom:9px;left:-6px}:root[data-theme] .nav-item.active svg{color:var(--green)}:root[data-theme] .nav-count{background:color-mix(in srgb, var(--ink) 8%, transparent);color:var(--muted);border-radius:20px;margin:0;padding:2px 7px;font-size:11px;font-weight:600}:root[data-theme] .side-subjects{border-left:1px dashed var(--line);gap:1px;margin:2px 0 6px 20px;padding:0 0 0 10px;list-style:none;display:grid}:root[data-theme] .side-subject{color:var(--muted);border-radius:8px;align-items:center;gap:9px;padding:5px 8px;font-size:13px;display:flex}:root[data-theme] .side-subject svg{color:var(--hue)}:root[data-theme] .side-subject>span:first-of-type{white-space:nowrap;text-overflow:ellipsis;flex:1;min-width:0;overflow:hidden}:root[data-theme] .side-subject:hover{color:var(--ink);background:color-mix(in srgb, var(--hue) 10%, transparent)}:root[data-theme] .side-subject.active{color:var(--ink);background:color-mix(in srgb, var(--hue) 15%, transparent);font-weight:600}:root[data-theme] .side-meter{background:color-mix(in srgb, var(--hue) 18%, transparent);border-radius:4px;flex-shrink:0;width:34px;height:4px;overflow:hidden}:root[data-theme] .side-meter i{background:var(--hue);border-radius:inherit;height:100%;display:block}:root[data-theme] .sidebar-bottom{border-top:1px solid var(--line);gap:8px;margin:0;padding-top:10px;display:grid}:root[data-theme] .side-progress{background:var(--surface);border:1px solid var(--line);color:var(--muted);border-radius:12px;gap:8px;padding:11px 12px;font-size:12.5px;display:grid}:root[data-theme] .side-progress-top{align-items:center;gap:7px;display:flex}:root[data-theme] .side-progress-top svg{color:var(--green)}:root[data-theme] .side-progress-top strong{color:var(--ink);font-variant-numeric:tabular-nums;margin-left:auto}:root[data-theme] .side-progress-bar{background:color-mix(in srgb, var(--green) 14%, transparent);border-radius:6px;height:6px;overflow:hidden}:root[data-theme] .side-progress-bar i{border-radius:inherit;background:linear-gradient(90deg, var(--green), var(--button-end));height:100%;display:block}:root[data-theme] .local-status{color:var(--muted);align-items:center;gap:8px;padding:4px 10px;font-size:12px;display:flex}:root[data-theme] .local-status svg{margin-left:auto}:root[data-theme] .status-dot{background:var(--green);width:7px;height:7px;box-shadow:0 0 0 3px color-mix(in srgb, var(--green) 22%, transparent);border-radius:50%}:root[data-theme] .sidebar-close{display:none}:root[data-theme] .workspace{margin-left:var(--sidebar-width);min-width:0;overflow-x:clip}:root[data-theme] .topbar{border-bottom:1px solid var(--line);background:0 0;gap:16px;height:64px;padding:0 40px}:root[data-theme] .topbar-left{flex:1;align-items:center;gap:12px;min-width:0;display:flex}:root[data-theme] .crumbs{min-width:0}:root[data-theme] .crumbs ol{min-width:0;color:var(--muted);align-items:center;gap:4px;margin:0;padding:0;font-size:13px;list-style:none;display:flex}:root[data-theme] .crumbs li{white-space:nowrap;flex-shrink:0;align-items:center;gap:4px;min-width:0;display:flex}:root[data-theme] .crumbs li:last-child{flex-shrink:1;overflow:hidden}:root[data-theme] .crumbs li>:is(a,span){text-overflow:ellipsis;min-width:0;overflow:hidden}:root[data-theme] .crumbs li:last-child>span{color:var(--ink);font-weight:600}:root[data-theme] .crumbs a{color:var(--muted);border-radius:7px;padding:4px 6px}:root[data-theme] .crumbs a:hover{color:var(--ink);background:color-mix(in srgb, var(--ink) 6%, transparent)}:root[data-theme] .crumbs svg{opacity:.6;flex-shrink:0}:root[data-theme] .topbar-actions{flex-shrink:0;gap:12px}:root[data-theme] .search-trigger{border:1px solid var(--line);background:var(--surface);min-height:38px;color:var(--muted);border-radius:11px;align-items:center;gap:10px;padding:8px 10px 8px 13px;font-size:13px;display:flex}:root[data-theme] .search-trigger:hover{border-color:var(--control-border);color:var(--ink)}:root[data-theme] .search-trigger kbd{margin-left:18px}:root[data-theme] .theme-control{border-color:var(--line);border-radius:11px;padding:3px}:root[data-theme] .theme-control button{border-radius:8px;min-height:30px;font-size:12px}:root[data-theme] .mobile-menu{border:1px solid var(--line);background:var(--surface);width:40px;height:40px;color:var(--ink);border-radius:11px;display:none}:root[data-theme] main{max-width:1440px;margin:0 auto;padding:0 40px 56px}:root[data-theme] .route-enter{animation:.35s ease-out ds-rise}:root[data-theme] .page-footer{max-width:1440px;color:var(--muted);border-top:1px solid var(--line);letter-spacing:.02em;padding:22px 40px 30px;font-size:12px}:root[data-theme] .footer-dot{color:var(--green)}:root[data-theme] .loading-note{color:var(--muted)}:root[data-theme] .storage-warning{background:var(--warm-surface);color:var(--warm-ink);padding:12px 40px;font-size:13px}:root[data-theme] .skip-link{background:var(--green);color:var(--on-accent);border-radius:10px;font-weight:600}:root[data-theme] .mobile-dock{display:none}:root[data-theme] .nav-progress{top:0;left:var(--sidebar-width);z-index:70;pointer-events:none;opacity:0;height:3px;transition:opacity .2s;position:fixed;right:0;overflow:hidden}:root[data-theme] .nav-progress.is-active{opacity:1;transition-delay:.12s}:root[data-theme] .nav-progress i{background:linear-gradient(90deg, transparent, var(--green), var(--button-end), transparent);width:40%;animation:1.1s ease-in-out infinite nav-progress;position:absolute;inset:0 auto 0 0}:root[data-theme] .page-skeleton{gap:14px;max-width:900px;padding:44px 0 20px;display:grid}:root[data-theme] .skeleton-line,:root[data-theme] .skeleton-cards span{background:linear-gradient(100deg, color-mix(in srgb, var(--ink) 6%, transparent) 30%, color-mix(in srgb, var(--ink) 11%, transparent) 50%, color-mix(in srgb, var(--ink) 6%, transparent) 70%);background-size:300% 100%;border-radius:10px;animation:1.4s ease-in-out infinite skeleton-sheen;display:block}:root[data-theme] .skeleton-line{width:72%;height:16px}:root[data-theme] .skeleton-line.is-eyebrow{width:140px;height:11px}:root[data-theme] .skeleton-line.is-title{border-radius:12px;width:58%;height:40px}:root[data-theme] .skeleton-line.is-short{width:46%}:root[data-theme] .skeleton-cards{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px;margin-top:14px;display:grid}:root[data-theme] .skeleton-cards span{border-radius:var(--radius-l);height:150px}:root[data-theme] .bench-placeholder{border-radius:var(--radius-m);background:radial-gradient(60% 80% at 50% 40%,#ffffff0a,#0000 70%);min-height:330px}:root[data-theme] :is(.index-domain,.lab-group){content-visibility:auto;contain-intrinsic-size:auto 560px}:root[data-theme] .nav-backdrop{display:none}:root[data-theme] .eyebrow{letter-spacing:.14em;text-transform:uppercase;color:var(--muted);align-items:center;gap:7px;font-size:11.5px;font-weight:600;display:inline-flex}:root[data-theme] .section-heading{justify-content:space-between;align-items:flex-end;gap:20px;margin:46px 0 20px;display:flex}:root[data-theme] .section-heading h2{letter-spacing:-.025em;margin:6px 0 0;font-size:clamp(22px,2.2vw,30px);line-height:1.2}:root[data-theme] .section-heading p{color:var(--muted);margin:6px 0 0;font-size:14px}:root[data-theme] .subtle-label{color:var(--muted);font-size:13px}:root[data-theme] .page-intro,:root[data-theme] .subject-hero{padding:40px 0 24px}:root[data-theme] .page-intro h1,:root[data-theme] .subject-hero h1{letter-spacing:-.03em;max-width:26ch;margin:10px 0 12px;font-size:clamp(30px,3.2vw,46px);line-height:1.08}:root[data-theme] .page-intro>p,:root[data-theme] .subject-hero>p{color:var(--muted);max-width:64ch;margin:0;font-size:16px;line-height:1.65}:root[data-theme] .subject-hero .eyebrow,:root[data-theme] .page-intro .eyebrow{color:var(--green)}:root[data-theme] .muted{color:var(--muted)}:root[data-theme] p{line-height:1.7}:root[data-theme] .button{border:1px solid #0000;border-radius:12px;gap:10px;min-height:44px;padding:11px 18px;font-size:14px;font-weight:600;transition:transform .15s,box-shadow .2s,background .2s,border-color .2s}:root[data-theme] .button.primary{color:var(--on-accent);background:linear-gradient(135deg, var(--green), var(--button-end));box-shadow:0 6px 18px color-mix(in srgb, var(--green) 30%, transparent);border-color:#0000}:root[data-theme] .button.primary:hover:not(:disabled){box-shadow:0 10px 26px color-mix(in srgb, var(--green) 40%, transparent);background:linear-gradient(135deg, var(--green), var(--button-end));transform:translateY(-1px)}:root[data-theme] .button.primary:disabled{background:color-mix(in srgb, var(--muted) 30%, var(--surface));color:var(--muted);box-shadow:none;opacity:1}:root[data-theme] .button.secondary{background:var(--surface);color:var(--ink);border-color:var(--control-border)}:root[data-theme] .button.secondary:hover:not(:disabled){background:color-mix(in srgb, var(--green) 10%, var(--surface));border-color:var(--green)}:root[data-theme] .button.ghost{background:color-mix(in srgb, var(--surface) 70%, transparent);color:var(--ink);border-color:var(--line)}:root[data-theme] .button.ghost:hover{border-color:var(--control-border);transform:translateY(-1px)}:root[data-theme] .button.big{border-radius:14px;min-height:52px;padding:14px 22px;font-size:15.5px}:root[data-theme] .button.danger{background:var(--orange);color:var(--on-accent)}:root[data-theme] .text-link,:root[data-theme] .text-button{color:var(--green);align-items:center;gap:6px;font-size:14px;font-weight:600;line-height:1.4;display:inline-flex}:root[data-theme] .text-link:hover,:root[data-theme] .text-button:hover{text-underline-offset:3px;text-decoration:underline}:root[data-theme] .icon-button{width:36px;height:36px;color:var(--muted);border-radius:10px}:root[data-theme] .icon-button:hover{background:color-mix(in srgb, var(--ink) 7%, transparent);color:var(--ink)}:root[data-theme] .back-link{color:var(--muted);margin:26px 0 8px;font-size:13px}:root[data-theme] .tag{letter-spacing:.1em;background:color-mix(in srgb, var(--hue) 14%, transparent);color:var(--ink);border-radius:999px;padding:5px 9px;font-size:10.5px;font-weight:600}:root[data-theme] .tag-clay{background:var(--warm-surface);color:var(--warm-ink)}:root[data-theme] .tag-neutral{background:color-mix(in srgb, var(--ink) 7%, transparent);color:var(--muted)}:root[data-theme] .chip{background:color-mix(in srgb, var(--hue) 13%, transparent);color:var(--ink);white-space:nowrap;border-radius:999px;align-items:center;gap:6px;padding:5px 10px;font-size:12px;font-weight:600;line-height:1.2;display:inline-flex}:root[data-theme] .chip svg{color:var(--hue)}:root[data-theme] .chip-next{background:var(--hue);color:var(--surface)}:root[data-theme] .pill-row{flex-wrap:wrap;gap:8px;display:flex}:root[data-theme] .pill{border:1px solid color-mix(in srgb, var(--hue) 40%, var(--line));background:color-mix(in srgb, var(--hue) 7%, var(--surface));color:var(--ink);border-radius:999px;align-items:center;gap:8px;padding:9px 14px;font-size:13.5px;font-weight:600;transition:transform .15s,border-color .15s;display:inline-flex}:root[data-theme] .pill svg{color:var(--hue)}:root[data-theme] .pill:hover{border-color:var(--hue);transform:translateY(-1px)}:root[data-theme] .subject-icon{width:40px;height:40px;color:var(--hue);background:color-mix(in srgb, var(--hue) 15%, transparent);box-shadow:inset 0 0 0 1px color-mix(in srgb, var(--hue) 30%, transparent);border-radius:12px;flex-shrink:0;place-items:center;display:inline-grid}:root[data-theme] .subject-icon.large{border-radius:18px;width:60px;height:60px}:root[data-theme] .hue-dot{background:var(--hue);border-radius:50%;flex-shrink:0;width:8px;height:8px;display:inline-block}:root[data-theme] .live-dot{background:var(--orange);--hue:var(--orange);border-radius:50%;width:8px;height:8px;animation:2s infinite ds-pulse;display:inline-block}:root[data-theme] .lesson-meter{flex-wrap:wrap;align-items:center;gap:3px;max-width:100%;display:inline-flex}:root[data-theme] .lesson-meter i{background:color-mix(in srgb, var(--hue) 18%, transparent);border-radius:3px;width:14px;height:6px}:root[data-theme] .lesson-meter i.is-done{background:var(--hue)}:root[data-theme] .lesson-meter i.is-current{box-shadow:inset 0 0 0 1.5px var(--hue);background:0 0}:root[data-theme] .lesson-meter.is-bar{background:color-mix(in srgb, var(--hue) 16%, transparent);border-radius:8px;width:min(100%,320px);height:8px;display:block;overflow:hidden}:root[data-theme] .lesson-meter.is-bar i{border-radius:inherit;background:linear-gradient(90deg, var(--hue), color-mix(in srgb, var(--hue) 50%, var(--button-end)));width:0;height:100%;display:block}:root[data-theme] .scope-note{border-radius:var(--radius-m);background:color-mix(in srgb, var(--green) 9%, var(--surface));border:1px solid color-mix(in srgb, var(--green) 25%, var(--line));color:var(--ink);align-items:flex-start;gap:14px;padding:20px 22px;display:flex}:root[data-theme] .scope-note>svg{color:var(--green);flex-shrink:0}:root[data-theme] .scope-note strong{font-size:16px;font-weight:600}:root[data-theme] .scope-note p{color:var(--muted);margin:6px 0 10px;font-size:14px}:root[data-theme] .scope-note a{color:var(--green);align-items:center;gap:6px;font-size:14px;font-weight:600;display:inline-flex}:root[data-theme] .bottom-note{color:var(--muted)}:root[data-theme] .bottom-note p{color:var(--muted);font-size:14px}:root[data-theme] .empty-state{color:var(--muted)}:root[data-theme] .empty-state h1{color:var(--ink)}:root[data-theme] .empty-note{text-align:center;border:1.5px dashed var(--control-border);border-radius:var(--radius-m);color:var(--muted);background:color-mix(in srgb, var(--surface) 60%, transparent);padding:40px 24px}:root[data-theme] .empty-note h3{color:var(--ink);font-size:21px}:root[data-theme] .empty-note p{color:var(--muted);font-size:14px}:root[data-theme] .card-topline{gap:10px}:root[data-theme] .topic-pills span{border-color:var(--line);color:var(--muted);background:var(--surface);border-radius:999px;padding:5px 11px;font-size:12px}:root[data-theme] .modal-backdrop{background:color-mix(in srgb, var(--paper) 55%, #00000073);-webkit-backdrop-filter:blur(6px);align-items:flex-start;padding-top:11vh}:root[data-theme] .search-modal{background:var(--glass);-webkit-backdrop-filter:blur(24px)saturate(1.3);border:1px solid var(--line);width:min(720px,100vw - 28px);max-height:76vh;box-shadow:var(--shadow-2);border-radius:20px;animation:.2s ease-out ds-rise}:root[data-theme] .search-input-wrap{border-bottom:1px solid var(--line);color:var(--green);gap:12px;padding:16px 18px}:root[data-theme] .search-input-wrap input{color:var(--ink);font-size:19px}:root[data-theme] .search-input-wrap input::placeholder{color:var(--muted)}:root[data-theme] .search-results{padding:8px 10px 12px}:root[data-theme] .search-results>.eyebrow{margin:14px 0 6px;padding:0 10px;font-size:11px;display:flex}:root[data-theme] .search-results>a{color:var(--ink);border-radius:12px;align-items:center;gap:12px;padding:10px 12px;font-size:15px;font-weight:500;display:flex}:root[data-theme] .search-results>a>svg:first-child{color:var(--hue);flex-shrink:0}:root[data-theme] .search-results>a>svg:last-child{color:var(--muted);opacity:0;transition:opacity .15s}:root[data-theme] .search-results>a:is(:hover,:focus){background:color-mix(in srgb, var(--hue) 13%, transparent);outline:none}:root[data-theme] .search-results>a:is(:hover,:focus)>svg:last-child{opacity:1}:root[data-theme] .search-results small{color:var(--muted);margin-top:3px;font-size:12.5px;font-weight:400;display:block}:root[data-theme] .search-results .muted{padding:8px 12px;font-size:13px}:root[data-theme] .quick-subjects{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:6px;padding:0 2px;display:grid}:root[data-theme] .quick-subjects a{border:1px solid var(--line);background:color-mix(in srgb, var(--hue) 6%, var(--surface));color:var(--ink);border-radius:12px;align-items:center;gap:10px;padding:10px 12px;font-size:14px;font-weight:600;display:flex}:root[data-theme] .quick-subjects a 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