@import"https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=DM+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&display=swap";@import"https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=DM+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&family=JetBrains+Mono:wght@400;500&display=swap";:root{--bg: #141210;--surface: rgba(var(--tint-rgb), .06);--surface-hover: rgba(var(--tint-rgb), .1);--border: rgba(var(--tint-rgb), .08);--border-light: rgba(var(--tint-rgb), .06);--text-primary: #F0EDE6;--text-secondary: #B8B2A6;--text-muted: #8A8478;--text-faint: #6A6458;--accent: #E8553A;--accent-strong: #D04A32;--accent-rgb: 232, 85, 58;--accent-bg: rgba(var(--accent-rgb), .08);--accent-border: rgba(var(--accent-rgb), .2);--honey: #FFD54F;--honey-strong: #FFB300;--download: #45B69C;--success: #45B69C;--success-bg: rgba(69,182,156,.1);--top-bar-bg: rgba(20, 18, 16, .95);--tint-rgb: 255, 255, 255;--card-raise: none;--font-serif: "Instrument Serif", Georgia, serif;--font-sans: "DM Sans", sans-serif}:root[data-theme=light]{--tint-rgb: 15, 40, 66;--bg: #F0F2F5;--surface: #FFFFFF;--surface-hover: #F1F5FA;--border: rgba(var(--tint-rgb), .1);--border-light: rgba(var(--tint-rgb), .06);--text-primary: #0D2540;--text-secondary: #2F4766;--text-muted: #647488;--text-faint: #9BA8B9;--accent: #1D8BDB;--accent-strong: #1570B4;--accent-rgb: 29, 139, 219;--accent-bg: rgba(var(--accent-rgb), .12);--accent-border: rgba(var(--accent-rgb), .38);--honey: #FF9F1C;--honey-strong: #E88710;--success: #2D79B5;--success-bg: rgba(45,121,181,.12);--download: #1F9D55;--top-bar-bg: rgba(240,242,245,.88);--card-raise: 0 1px 2px rgba(15,40,66,.06), 0 10px 28px rgba(15,40,66,.1)}.theme-toggle{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border:1px solid var(--border);background:var(--surface);color:#ffd54f;border-radius:50%;cursor:pointer;font-size:13px;transition:background .15s,color .15s,border-color .15s}:root[data-theme=light] .theme-toggle{color:#3b6cb5}.theme-toggle:hover{background:var(--surface-hover);color:var(--text-primary);border-color:var(--accent-border)}html,body{overflow-x:hidden}.academy-page{min-height:100vh;display:flex;flex-direction:column;max-width:100vw;overflow-x:hidden;padding-top:52px}.academy-top-bar{display:flex;align-items:center;padding:0 1.5rem;height:52px;background:var(--top-bar-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border-light);flex-shrink:0;z-index:100;position:fixed;left:0;right:0;top:0}.top-bar-inner{display:flex;align-items:center;gap:.875rem;width:100%;max-width:960px;margin:0 auto}.academy-home{display:flex;align-items:center;text-decoration:none;padding:.4rem;border-radius:8px;transition:background-color .2s ease;color:var(--text-faint)}.academy-home:hover{background:rgba(var(--tint-rgb),.06);color:var(--accent)}.academy-home i{font-size:1.1rem}.top-bar-sep{width:1px;height:18px;background:var(--border)}.academy-brand{font-size:1rem;font-weight:600;color:var(--text-primary);display:flex;align-items:center;gap:.5rem}.academy-logo{font-size:1.35rem;font-weight:700;color:var(--accent);line-height:1}.online-indicator{display:flex;align-items:center;gap:6px;font-size:.7rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase;padding:4px 10px;border-radius:20px;transition:all .3s}.online-indicator.online{color:var(--success);background:var(--success-bg)}.online-indicator.offline{color:var(--accent);background:var(--accent-bg)}.online-indicator i{font-size:.65rem}.online-indicator.degraded{color:#f59e0b;background:#f59e0b1f;border:none;cursor:pointer;font-family:inherit;animation:degraded-pulse 3s ease-in-out infinite}.online-indicator.degraded:hover{background:#f59e0b38}.academy-hero{padding:3.5rem 1.5rem 2rem}.hero-inner{max-width:960px;margin:0 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filterPop{0%{transform:scale(.9)}50%{transform:scale(1.06)}to{transform:scale(1)}}.explorer-results{display:flex;align-items:center;gap:8px;margin-left:2px}.results-count{font-size:.65rem;font-weight:500;color:var(--text-faint);letter-spacing:.02em;display:inline-flex;align-items:center;gap:4px}.results-count .count-num{display:inline-block;min-width:1em;text-align:center}.results-count.just-updated .count-num{animation:countPop .35s cubic-bezier(.34,1.56,.64,1)}@keyframes countPop{0%{transform:scale(1)}30%{transform:scale(1.3)}to{transform:scale(1)}}.filter-reset-btn{background:none;border:none;padding:2px 6px;font-size:.6rem;font-weight:500;font-family:var(--font-sans);color:var(--text-faint);cursor:pointer;display:inline-flex;align-items:center;gap:3px;transition:color .2s}.filter-reset-btn:hover{color:var(--accent)}.empty-state{grid-column:1 / -1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:4rem 2rem;text-align:center;animation:fadeSlideIn .35s ease-out both}.empty-icon{font-size:2.5rem;color:var(--text-faint);margin-bottom:1rem;animation:emptyFloat 3s ease-in-out infinite}@keyframes emptyFloat{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}.empty-title{font-family:var(--font-serif);font-size:1.3rem;color:var(--text-secondary);margin-bottom:6px}.empty-hint{font-size:.8rem;color:var(--text-faint)}.empty-hint button{background:none;border:none;color:var(--accent);font-family:var(--font-sans);font-size:.8rem;font-weight:600;cursor:pointer;text-decoration:underline;text-underline-offset:2px}.empty-hint button:hover{color:#d04a32}.series-block{grid-column:1 / -1}.series-block:not(:first-child){margin-top:1.5rem}.series-header{margin-bottom:1rem;padding-left:2px}.series-title{font-size:1.15rem;font-weight:700;color:var(--text-primary);margin:0 0 .2rem;letter-spacing:-.01em}.series-title i{margin-right:6px;color:var(--accent)}.series-desc-row{display:flex;align-items:center;gap:8px}.series-download{display:flex;align-items:center;justify-content:center;width:30px;height:30px;padding:0;border:none;border-radius:8px;background:none;color:var(--text-faint);font-size:.85rem;cursor:pointer;transition:opacity .2s,color .15s,background .15s;opacity:0;flex-shrink:0}.series-header:hover .series-download,.series-download:focus-visible{opacity:1}.series-download:hover{color:var(--accent);background:rgba(var(--tint-rgb),.06)}.series-download .offline-icon-hover{display:none}.series-download.all-saved{color:var(--download);opacity:1}.series-download.all-saved:hover .offline-icon-default{display:none}.series-download.all-saved:hover .offline-icon-hover{display:inline}.series-download.all-saved:hover{color:var(--accent)}.series-description{font-size:.85rem;color:var(--text-secondary);margin:0;line-height:1.4}.series-stacks,.course-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(320px,100%),1fr));gap:1rem}.course-card{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:14px;transition:all .25s ease;animation:fadeSlideIn .35s ease-out both;animation-delay:calc(var(--i, 0) * .04s);min-width:0;box-shadow:var(--card-shadow, none)}:root[data-theme=light] .course-card{--card-shadow: 0 1px 2px rgba(28,22,16,.06), 0 4px 12px rgba(28,22,16,.04)}.course-card:hover:not(.disabled){background:var(--surface-hover);border-color:var(--accent-border);transform:translateY(-2px);box-shadow:var(--card-raise, 0 4px 16px rgba(0,0,0,.2))}.course-card.disabled{opacity:.35;cursor:default}.academy-page .card-link{display:block;text-decoration:none;color:inherit;padding:1.25rem 1.5rem}.academy-page .card-link.no-click{pointer-events:none}.academy-page .card-header{display:flex;align-items:center;gap:12px}.academy-page .card-icon{width:40px;height:40px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:1.35rem;flex-shrink:0;background:none;color:var(--accent)}.academy-page .card-title{font-family:var(--font-sans);font-weight:600;font-size:.95rem;color:var(--text-primary);line-height:1.3;flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.academy-page .card-action{flex-shrink:0;min-width:38px;height:38px;position:relative;display:flex;align-items:center;justify-content:center}.academy-page .card-body{padding-left:52px}.academy-page .card-desc{font-size:.82rem;color:var(--text-muted);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-top:2px}.academy-page .card-meta{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}.meta-tag{display:inline-flex;align-items:center;gap:4px;font-size:.65rem;font-weight:600;padding:2px 8px;border-radius:4px;text-transform:uppercase;letter-spacing:.03em}.duration-tag{background:rgba(var(--tint-rgb),.05);color:var(--text-faint)}.stack-meta-tag{background:#8b5cf61f;color:#b388ff}.offline-tag{background:#1f9d551f;color:var(--download)}.card-badge{position:absolute;top:1px;right:1px;bottom:1px;left:1px;display:flex;align-items:center;justify-content:center;font-size:.6rem;font-weight:700;transition:opacity .2s ease,transform .3s cubic-bezier(.34,1.56,.64,1);animation:badgeIn .4s cubic-bezier(.34,1.56,.64,1) both}.card-badge.in-progress{background:rgba(var(--tint-rgb),.06);border:none;border-radius:20px;padding:3px 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