html{scroll-behavior:smooth}html,body,#root{min-height:100%}body{font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background:var(--background);color:var(--text-primary);line-height:1.5;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}img,picture,svg,video,canvas{display:block;max-width:100%}button{cursor:pointer;border:none;background:none}ul,ol{list-style:none}.container{width:min(1200px,calc(100% - 2rem));margin-inline:auto}.page{min-height:100vh;padding-block:var(--space-8)}.section{margin-bottom:var(--space-12)}.grid{display:grid;gap:var(--space-6)}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.stack{display:flex;flex-direction:column;gap:var(--space-6)}.cluster{display:flex;align-items:center;gap:var(--space-4);flex-wrap:wrap}.space-between{display:flex;align-items:center;justify-content:space-between}@media(max-width:992px){.grid-4,.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:768px){.container{width:min(100%,calc(100% - 1.5rem))}.page{padding-block:var(--space-6)}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}h1,h2,h3,h4,h5,h6{color:var(--text-primary);font-weight:700;line-height:1.2;margin:0}p{color:var(--text-secondary);line-height:1.7;margin:0}.page-title{font-size:clamp(2rem,4vw,2.75rem);font-weight:700;letter-spacing:-.03em}.section-title{font-size:1.5rem;font-weight:700}.card-title{font-size:1.15rem;font-weight:600}.subtitle{font-size:1rem;color:var(--text-secondary)}.text-primary{color:var(--text-primary)}.text-secondary{color:var(--text-secondary)}.text-muted{color:var(--text-muted)}.text-center{text-align:center}.text-right{text-align:right}.font-bold{font-weight:700}.font-semibold{font-weight:600}.card{background:var(--surface);border:1px solid var(--border-color);border-radius:var(--radius-lg);transition:transform var(--transition-normal),border-color var(--transition-normal),box-shadow var(--transition-normal)}.card:hover{border-color:var(--primary-color);transform:translateY(-3px);box-shadow:var(--shadow-md)}.card--sm{padding:var(--space-4)}.card--md{padding:var(--space-6)}.card--lg{padding:var(--space-8)}.page-header{display:flex;align-items:flex-start;justify-content:space-between;gap:var(--space-6);margin-bottom:var(--space-12)}.page-header__content{display:flex;flex-direction:column;gap:var(--space-3)}.page-header__actions{display:flex;align-items:center;gap:var(--space-4)}.page-header .subtitle{max-width:42rem}@media(max-width:768px){.page-header{flex-direction:column}}:root{--primary-color: #38bdf8;--primary-hover: #0ea5e9;--primary-soft: rgba(56, 189, 248, .12);--background: #0f172a;--surface-1: #111827;--surface-2: #172033;--surface-3: #1e293b;--surface: #111c35;--card-bg: #16213e;--surface-color: var(--surface);--surface-elevated: var(--card-bg);--surface-nested: var(--surface-3);--border-default: #24324d;--border-hover: #38bdf8;--border-focus: #7dd3fc;--border-color: var(--border-default);--text-primary: #f8fafc;--text-secondary: #94a3b8;--text-muted: #64748b;--success: #22c55e;--warning: #f59e0b;--danger: #ef4444;--info: #38bdf8;--tag-bg: var(--surface-3);--tag-border: #334155;--tag-text: #cbd5e1;--button-secondary-bg: var(--surface-2);--button-secondary-hover: var(--surface-3);--button-secondary-border: #334155;--button-secondary-text: var(--text-secondary);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 20px;--radius-pill: 999px;--radius: 18px;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-8: 2rem;--space-10: 2.5rem;--space-12: 3rem;--space-16: 4rem;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .12);--shadow-md: 0 10px 24px rgba(0, 0, 0, .2);--shadow-lg: 0 18px 40px rgba(0, 0, 0, .28);--shadow-primary: 0 0 0 1px rgba(56, 189, 248, .08), 0 18px 40px rgba(0, 0, 0, .28);--transition-fast: .2s ease;--transition-normal: .25s ease;--transition-slow: 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80px)}.nav-login{padding:9px 16px;border:1px solid #334155;border-radius:10px;color:#e2e8f0;text-decoration:none;transition:border-color .2s ease,color .2s ease}.nav-login:hover{border-color:#38bdf8;color:#38bdf8}.nav-right{display:flex;align-items:center;gap:22px}.nav-user{display:flex;align-items:center;gap:16px}.nav-username{color:#e2e8f0;font-size:14px;font-weight:500}.logout-btn{padding:8px 14px;border:none;border-radius:8px;background:#ef4444;color:#fff;cursor:pointer;transition:.25s}.logout-btn:hover{background:#dc2626}.user-menu{position:relative}.user-menu-button{display:flex;align-items:center;gap:10px;padding:10px 16px;border:1px solid #334155;border-radius:12px;background:#111827;color:#f8fafc;font-size:14px;font-weight:600;cursor:pointer;transition:background .2s ease,border-color .2s ease,transform .2s ease}.user-menu-button:hover{background:#172033;border-color:#38bdf8}.menu-arrow{font-size:12px;color:#94a3b8}.user-dropdown{position:absolute;top:calc(100% + 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var(--space-4)}.roadmap-tag{font-size:.8rem}}.continue-section{margin-bottom:70px}.continue-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}.continue-card{display:flex;flex-direction:column;gap:18px;padding:22px;border:1px solid #334155;border-radius:16px;background:#1e293b;color:inherit;text-decoration:none;transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease}.continue-card:hover{transform:translateY(-4px);border-color:#38bdf8;box-shadow:0 0 0 1px #38bdf814,0 14px 28px #00000040}.continue-top{display:flex;justify-content:space-between;align-items:flex-start;gap:18px}.continue-info h3{margin:0 0 8px;font-size:17px;font-weight:700;color:#f8fafc;line-height:1.4}.continue-info p{margin:0;font-size:14px;color:#94a3b8}.continue-percent{flex-shrink:0;font-size:15px;font-weight:700;color:#38bdf8}.continue-progress-bar{width:100%;height:8px;background:#0f172a;border-radius:999px;overflow:hidden}.continue-progress-fill{height:100%;border-radius:inherit;background:linear-gradient(90deg,#38bdf8,#0ea5e9);transition:width .35s ease}.continue-link{margin-top:auto;font-size:14px;font-weight:600;color:#38bdf8;transition:transform .2s ease}.continue-card:hover .continue-link{transform:translate(4px)}.continue-actions{display:flex;justify-content:center;gap:12px;margin-top:24px}.continue-toggle{padding:10px 18px;border:1px solid #334155;border-radius:10px;background:transparent;color:#cbd5e1;font:inherit;font-size:14px;font-weight:600;cursor:pointer;transition:background-color .2s ease,border-color .2s ease,color .2s ease,transform .2s ease}.continue-toggle:hover{border-color:#38bdf8;color:#38bdf8;transform:translateY(-1px)}.continue-toggle:active{transform:translateY(0)}.continue-toggle--primary{border-color:#0ea5e9;background:#0ea5e9;color:#0f172a}.continue-toggle--primary:hover{background:#38bdf8;color:#0f172a}.continue-loading-card{display:flex;flex-direction:column;gap:16px;min-height:120px;padding:22px;border-radius:16px;background:#111827;border:1px solid #26354b}.continue-loading-top{display:flex;justify-content:space-between;align-items:center;gap:16px}.continue-loading-title{width:72%;height:16px}.continue-loading-percent{width:28px;height:28px;flex-shrink:0}.continue-loading-line{width:100%;height:10px}.continue-loading-progress{width:100%;height:6px;margin-top:auto;border-radius:999px}@media(max-width:768px){.continue-grid{grid-template-columns:minmax(0,1fr)}}.skeleton{position:relative;overflow:hidden;background:var(--skeleton-bg);border-radius:8px}.skeleton:after{content:"";position:absolute;inset:0;transform:translate(-100%);background:linear-gradient(90deg,transparent,var(--skeleton-highlight),transparent);animation:skeleton-shimmer 1.4s infinite}.skeleton:after{content:"";position:absolute;inset:0;transform:translate(-100%);background:linear-gradient(90deg,transparent,rgba(255,255,255,.08),transparent);animation:skeleton-shimmer 1.6s ease-in-out infinite}@keyframes 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64px 20px 20px;background:#111827;border:1px solid #26354b;border-radius:18px;overflow:hidden}.skeleton-card__bookmark{position:absolute;top:16px;right:16px;width:28px;height:28px;border-radius:8px}.skeleton-card__content{display:flex;flex-direction:column;flex:1}.skeleton-card__title{width:68%;height:18px;margin-bottom:18px;border-radius:8px}.skeleton-card__description{margin-bottom:18px}.skeleton-card__line{width:100%;height:10px;border-radius:999px;margin-bottom:10px}.skeleton-card__line--short{width:62%}.skeleton-card__tags{display:flex;gap:10px}.skeleton-card__tag{height:24px;border-radius:999px}.skeleton-card__tag--first{width:54px}.skeleton-card__tag--second{width:46px}.skeleton-card__tag--third{width:64px}.skeleton-card__bottom{margin-top:auto;display:flex;justify-content:space-between;align-items:flex-end;padding-top:18px}.skeleton-card__bottom-text{width:58px;height:10px;border-radius:999px}.skeleton-card__bottom-icon{position:absolute;right:20px;bottom:20px;width:14px;height:14px;border-radius:50%}.skeleton__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:var(--space-7)}@media(prefers-reduced-motion:reduce){.skeleton:after{animation:none}}@media(max-width:768px){.skeleton__title--large{width:90%;height:2rem}.skeleton-card{min-height:200px;padding:18px 56px 18px 18px}.skeleton__grid{grid-template-columns:1fr;gap:20px}.skeleton__filter{width:92px;height:40px}.skeleton__filter--wide{width:120px}.skeleton-card__bookmark{width:26px;height:26px;top:14px;right:14px}.skeleton-card__title{width:65%}.skeleton-card__tag{height:22px}}.home-page{--home-accent: var(--primary-color, #38bdf8);--home-surface: var(--surface-3, #1e293b);--home-border: var(--tag-border, #334155);--home-text: var(--text-primary, #f8fafc);--home-muted: var(--text-secondary, #94a3b8);width:100%;max-width:1400px;margin-inline:auto;padding:60px 70px}.home-page .hero{position:relative;display:flex;justify-content:center;margin-block-end:60px}.home-page .hero:before{content:"";position:absolute;inset-block-start:-220px;inset-inline-start:50%;width:min(650px,100vw);aspect-ratio:1;background:radial-gradient(circle,rgba(56,189,248,.18),rgba(56,189,248,.06),transparent);filter:blur(90px);pointer-events:none;transform:translate(-50%)}.home-page .hero-content{position:relative;z-index:1;width:100%;max-width:760px;text-align:center}.home-page .hero-label{position:relative;display:inline-block;overflow:hidden;margin-block-end:18px;padding:8px 14px;border:1px solid var(--home-border);border-radius:var(--radius-pill, 999px);background:var(--home-surface);color:var(--home-accent);font-size:12px;font-weight:600;letter-spacing:1.5px}.home-page .hero-label:after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,transparent 35%,rgba(56,189,248,.22) 50%,transparent 65%);pointer-events:none;transform:translate(-170%) skew(-25deg);animation:home-label-sweep 7s ease-in-out infinite}.home-page .hero-title{margin:0 0 22px;color:var(--home-text);font-size:clamp(2rem,5vw,3rem);font-weight:800;line-height:1.15;overflow-wrap:anywhere}.home-page .hero-subtitle{max-width:650px;margin:0 auto 34px;color:var(--home-muted);font-size:17px;line-height:1.8}.home-page .hero-search{width:100%;max-width:520px;padding:16px 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.filter-btn{min-height:42px;padding:8px 16px;border:1px solid var(--home-border);border-radius:var(--radius-sm, 8px);background:var(--home-surface);color:#e2e8f0;cursor:pointer;transition:background-color var(--transition-fast),border-color var(--transition-fast),color var(--transition-fast),transform var(--transition-fast)}.home-page .filter-btn:hover{border-color:#475569;transform:translateY(-1px)}.home-page .filter-btn:focus-visible,.home-page .pagination button:focus-visible{outline:2px solid var(--border-focus, #7dd3fc);outline-offset:3px}.home-page .filter-btn.active{border-color:var(--home-accent);background:var(--home-accent);color:var(--background, #0f172a)}.home-page .section-title{margin-block-end:20px;font-size:22px}.home-page .results-bar{display:flex;align-items:center;justify-content:space-between;margin-block-end:22px}.home-page .results-count{margin:0;color:var(--home-muted);font-size:15px}.home-page .results-count strong{color:var(--home-text)}.home-page .grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(320px,100%),1fr));gap:28px}.home-page .empty-state{padding:80px 20px;border:1px dashed var(--home-border);border-radius:18px;color:var(--home-muted);text-align:center}.home-page .empty-state h3{margin:0 0 10px;color:var(--home-text);font-size:24px}.home-page .empty-state p{max-width:420px;margin-inline:auto;line-height:1.7}.home-page .pagination{display:flex;align-items:center;justify-content:center;gap:20px;margin-block-start:50px}.home-page .pagination button{flex-shrink:0;padding:6px 14px;border:1px solid var(--home-border);border-radius:6px;background:var(--home-surface);color:#e2e8f0;cursor:pointer;transition:border-color var(--transition-fast),transform var(--transition-fast)}.home-page .pagination button:hover:not(:disabled){border-color:#475569;transform:translateY(-1px)}.home-page .pagination button:disabled{cursor:not-allowed;opacity:.4}.home-page .pagination span{flex-shrink:0;color:var(--home-muted);font-size:14px;white-space:nowrap}@media(max-width:1024px){.home-page{padding:50px 40px}}@media(max-width:768px){.home-page{padding:40px 24px}.home-page .hero{margin-block-end:60px}.home-page .hero-subtitle{font-size:15px}.home-page .grid{grid-template-columns:minmax(0,1fr)}}@media(max-width:480px){.home-page{padding:32px 18px}.home-page .hero-title{font-size:30px;line-height:1.2}.home-page .hero-subtitle{font-size:14px}.home-page .browse-header h2{font-size:28px}.home-page .pagination{gap:8px}.home-page .pagination button{padding-inline:10px}}@keyframes home-label-sweep{0%,82%{transform:translate(-170%) skew(-25deg)}to{transform:translate(170%) skew(-25deg)}}@media(prefers-reduced-motion:reduce){.home-page .hero-label:after{animation:none}.home-page :is(.filter-btn,.pagination button){transition:none}}.details-page{--details-accent: var(--primary-color, #38bdf8);--details-accent-hover: var(--primary-hover, #0ea5e9);--details-bg: 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var(--transition-fast)}.empty-bookmarks__button:hover{background:var(--primary-hover);transform:translateY(-2px)}.empty-bookmarks__icon-wrapper{display:flex;align-items:center;justify-content:center;width:84px;height:84px;margin-bottom:1.75rem;background:var(--card-bg);border:1px solid var(--border-color);border-radius:50%}.empty-bookmarks__icon{font-size:2rem;color:#a855f7}@media(max-width:768px){.empty-bookmarks{padding:3.5rem 1.5rem}.empty-bookmarks__title{font-size:1.75rem}}.bookmarks-page{--bookmarks-text: var(--text-primary, #f8fafc);--bookmarks-muted: var(--text-secondary, #94a3b8);--bookmarks-border: var(--tag-border, #334155);width:100%;max-width:1100px;margin-inline:auto;padding:56px 28px 80px}.bookmarks-page .results-bar{display:flex;align-items:center;justify-content:space-between;min-height:22px;margin-block-end:24px}.bookmarks-page .results-count{margin:0;color:var(--bookmarks-muted);font-size:15px}.bookmarks-page .results-count strong{color:var(--bookmarks-text)}.bookmarks-page .grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(320px,100%),1fr));gap:28px}.bookmarks-page .empty-state{margin-block-start:48px;padding:60px 32px;border:1px dashed var(--bookmarks-border);border-radius:18px;text-align:center}.bookmarks-page .empty-state h3{margin:0 0 12px;color:var(--bookmarks-text)}.bookmarks-page .empty-state p{max-width:450px;margin-inline:auto;color:var(--bookmarks-muted);line-height:1.7;overflow-wrap:anywhere}.bookmarks-page .bookmarks-header--loading{margin-block-end:3.5rem}.bookmarks-page .bookmarks-skeleton__title{width:min(340px,80%);height:clamp(2.75rem,5vw,3.5rem);margin-block-end:.75rem}.bookmarks-page .bookmarks-skeleton__text{width:min(500px,75%);height:16px;margin-block-end:0}.bookmarks-page .bookmarks-skeleton__results{width:min(240px,65%);height:15px;margin-block-end:31px}@media(max-width:800px){.bookmarks-page{padding:42px 20px 72px}}@media(max-width:520px){.bookmarks-page{padding:32px 16px 64px}.bookmarks-page .grid{grid-template-columns:minmax(0,1fr);gap:20px}.bookmarks-page .empty-state{padding:48px 20px}.bookmarks-page .bookmarks-skeleton__title{width:85%}.bookmarks-page .bookmarks-skeleton__text{width:90%}}.not-found-page{display:grid;min-height:min(70vh,44rem);place-content:center;justify-items:center;gap:var(--space-4);padding:var(--space-12) var(--space-4);text-align:center}.not-found-page__code{color:var(--primary-color);font-size:clamp(3rem,12vw,7rem);font-weight:800;line-height:.9}.not-found-page h1{font-size:clamp(1.75rem,5vw,2.75rem)}.not-found-page>p:not(.not-found-page__code){max-width:34rem;color:var(--text-secondary)}.not-found-page a,.not-found-page button{margin-top:var(--space-2);padding:var(--space-3) var(--space-5);border:0;border-radius:var(--radius-md);background:var(--primary-color);color:var(--background);font-weight:700;cursor:pointer;transition:background var(--transition-fast),transform var(--transition-fast)}.not-found-page a:hover,.not-found-page button:hover{background:var(--primary-hover);transform:translateY(-2px)}.not-found-page a:focus-visible,.not-found-page button:focus-visible{outline:3px solid var(--border-focus);outline-offset:3px}