:root{--transition: .3s ease;--radius: 12px;--radius-sm: 8px;--shadow: 0 2px 16px rgba(0, 0, 0, .08);--shadow-hover: 0 8px 32px rgba(0, 0, 0, .12)}[data-theme=light]{--bg-primary: #ffffff;--bg-secondary: #f5f5f5;--bg-card: #ffffff;--bg-header: #ffffff;--bg-input: #f0f0f0;--bg-hero: #000000;--text-primary: #0a0a0a;--text-secondary: #555555;--text-tertiary: #888888;--text-inverse: #ffffff;--border: #e0e0e0;--accent: #0a0a0a;--accent-hover: #333333;--progress-bg: #e0e0e0;--progress-fill: #0a0a0a;--overlay: rgba(0, 0, 0, .6);--card-hover-border: #0a0a0a}[data-theme=dark]{--bg-primary: #0a0a0a;--bg-secondary: #141414;--bg-card: #1a1a1a;--bg-header: #0a0a0a;--bg-input: #1e1e1e;--bg-hero: #000000;--text-primary: #f5f5f5;--text-secondary: #aaaaaa;--text-tertiary: #777777;--text-inverse: #0a0a0a;--border: #2a2a2a;--accent: #f5f5f5;--accent-hover: #cccccc;--progress-bg: #2a2a2a;--progress-fill: #f5f5f5;--overlay: rgba(0, 0, 0, .8);--card-hover-border: #f5f5f5;--shadow: 0 2px 16px rgba(0, 0, 0, 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iframe{width:100%;height:100%;border:none}.video-placeholder{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff;gap:12px}.video-placeholder svg{width:72px;height:72px;opacity:.6}.video-placeholder p{font-size:.95rem;opacity:.6}.video-info{margin-top:20px}.video-info__title{font-size:1.25rem;font-weight:700;margin-bottom:8px}.video-info__type{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;background:var(--bg-secondary);color:var(--text-secondary);border-radius:6px;font-size:.85rem;font-weight:600;margin-bottom:16px;border:1px solid var(--border)}.video-info__description{color:var(--text-secondary);margin-bottom:20px;line-height:1.6;overflow-wrap:break-word;word-break:break-word}.video-info__nav{display:flex;gap:12px;margin-top:16px}.btn-nav{display:inline-flex;align-items:center;gap:6px;padding:10px 20px;border-radius:var(--radius-sm);font-size:.9rem;font-weight:600;border:2px solid 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ease}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.skeleton-card{height:340px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;position:relative}.skeleton-card:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,var(--bg-secondary) 50%,transparent);background-size:200% 100%;animation:shimmer 1.5s ease-in-out infinite}.skeleton-card:after{content:"";display:block;height:60%;background:var(--border);opacity:.1}.continue-card{display:flex;align-items:center;gap:20px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:32px;transition:all var(--transition)}.continue-card:hover{border-color:var(--accent);box-shadow:var(--shadow-hover)}.continue-card__thumb{width:120px;height:68px;border-radius:var(--radius-sm);overflow:hidden;flex-shrink:0;background:#222}.continue-card__thumb img{width:100%;height:100%;object-fit:cover}.continue-card__body{flex:1;min-width:0}.continue-card__label{font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--accent);margin-bottom:4px}.continue-card__title{font-size:1rem;font-weight:700;margin-bottom:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.continue-card__lesson{font-size:.85rem;color:var(--text-secondary);overflow-wrap:break-word;word-break:break-word}.continue-card__action{flex-shrink:0;padding:10px 24px;border-radius:var(--radius-sm);background:var(--accent);color:var(--text-inverse);font-weight:600;font-size:.9rem;border:none;cursor:pointer;transition:background var(--transition)}.continue-card__action:hover{background:var(--accent-hover)}.notes-section{margin-top:20px}.notes-toggle{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border-radius:var(--radius-sm);font-size:.9rem;font-weight:600;background:var(--bg-secondary);border:1px solid var(--border);color:var(--text-secondary);cursor:pointer;transition:all var(--transition)}.notes-toggle:hover{border-color:var(--accent);color:var(--text-primary)}.notes-toggle svg{width:18px;height:18px}.notes-textarea{width:100%;min-height:100px;padding:12px 16px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-input);color:var(--text-primary);font-family:inherit;font-size:.9rem;line-height:1.6;resize:vertical;outline:none;transition:border-color var(--transition);margin-top:12px;display:none}.notes-textarea:focus{border-color:var(--accent)}.notes-textarea--visible{display:block}.notes-saved{font-size:.75rem;color:var(--text-tertiary);margin-top:6px;opacity:0;transition:opacity var(--transition)}.notes-saved--visible{opacity:1}@media(max-width:900px){.player-layout{grid-template-columns:1fr}}@media(max-width:768px){.course-grid{grid-template-columns:1fr;gap:16px}.player-layout{grid-template-columns:1fr}.lesson-sidebar{position:static;max-height:none}.continue-card{flex-wrap:wrap}.continue-card__thumb{width:80px;height:46px}.continue-card__action{width:100%}}.load-more{display:flex;flex-direction:column;align-items:center;gap:12px;padding:32px 0}.load-more__info{font-size:.85rem;color:var(--text-tertiary)}.load-more__info--done{color:var(--text-secondary)}.load-more__btn{padding:12px 32px;border-radius:var(--radius-sm);background:var(--bg-secondary);border:1px solid var(--border);color:var(--text-primary);font-size:.9rem;font-weight:600;cursor:pointer;transition:all var(--transition)}.load-more__btn:hover{border-color:var(--accent);background:var(--bg-card)}.route-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px;margin-bottom:48px}.route-card{display:flex;align-items:flex-start;gap:16px;padding:20px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);cursor:pointer;transition:all var(--transition)}.route-card:hover{border-color:var(--route-color);box-shadow:var(--shadow-hover);transform:translateY(-2px)}.route-card__icon{width:48px;height:48px;border-radius:var(--radius-sm);background:color-mix(in srgb,var(--route-color) 15%,transparent);color:var(--route-color);display:flex;align-items:center;justify-content:center;flex-shrink:0}.route-card__icon svg{width:24px;height:24px}.route-card__body{flex:1;min-width:0}.route-card__title{font-size:1.05rem;font-weight:700;margin-bottom:4px;overflow-wrap:break-word;word-break:break-word}.route-card__desc{font-size:.82rem;color:var(--text-secondary);line-height:1.5;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;overflow-wrap:break-word;word-break:break-word}.route-card__stages{font-size:.78rem;color:var(--text-tertiary);margin-bottom:8px}.route-card__progress{height:4px;background:var(--progress-bg);border-radius:2px;margin-bottom:4px}.route-card__progress-bar{height:100%;background:var(--route-color);border-radius:2px;transition:width .5s ease}.route-card__progress-text{font-size:.75rem;color:var(--text-tertiary)}.route-map__header{margin-bottom:40px}.route-map__title{font-size:1.75rem;font-weight:700;letter-spacing:-.5px;margin-bottom:8px}.route-map__desc{color:var(--text-secondary);font-size:.95rem;line-height:1.6;margin-bottom:16px}.route-map__progress{display:flex;align-items:center;gap:12px;font-size:.85rem;color:var(--text-tertiary)}.route-map__bar{flex:1;max-width:300px;height:6px;background:var(--progress-bg);border-radius:3px}.route-map__bar-fill{height:100%;background:var(--accent);border-radius:3px;transition:width .5s ease}.route-map__stages{display:flex;flex-direction:column;gap:0;position:relative}.route-stage{padding-left:48px;position:relative;padding-bottom:32px}.route-stage:last-child{padding-bottom:0}.route-stage__header{display:flex;align-items:flex-start;gap:14px;margin-bottom:16px}.route-stage__number{position:absolute;left:0;top:0;width:32px;height:32px;border-radius:50%;background:var(--accent);color:var(--text-inverse);display:flex;align-items:center;justify-content:center;font-size:.85rem;font-weight:700;z-index:1}.route-stage:not(:last-child):before{content:"";position:absolute;left:15px;top:32px;bottom:0;width:2px;background:var(--border)}.route-stage__title{font-size:1.1rem;font-weight:700}.route-stage__desc{font-size:.82rem;color:var(--text-tertiary);margin-top:2px}.route-stage__courses{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}.route-course-card{display:flex;gap:12px;padding:12px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition)}.route-course-card:hover{border-color:var(--accent);background:var(--bg-card)}.route-course-card__thumb{width:64px;height:40px;border-radius:4px;overflow:hidden;flex-shrink:0;background:var(--bg-input)}.route-course-card__thumb img{width:100%;height:100%}.route-course-card__body{flex:1;min-width:0}.route-course-card__title{font-size:.85rem;font-weight:600;margin-bottom:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.route-course-card__meta{font-size:.75rem;color:var(--text-tertiary);margin-bottom:6px}.route-course-card__bar{height:3px;background:var(--progress-bg);border-radius:2px;margin-bottom:2px}.route-course-card__bar-fill{height:100%;background:var(--accent);border-radius:2px;transition:width .5s ease}.route-course-card__progress{font-size:.7rem;color:var(--text-tertiary)}.route-stage__connector{display:none}@media(max-width:768px){.route-grid,.route-stage__courses{grid-template-columns:1fr}.route-map__progress{flex-direction:column;align-items:flex-start}.route-map__bar{max-width:100%;width:100%}}.completion-modal{position:fixed;inset:0;z-index:10000;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s ease}.completion-modal--visible{opacity:1}.completion-modal__backdrop{position:absolute;inset:0;background:var(--overlay)}.completion-modal__content{position:relative;background:var(--bg-card);border-radius:var(--radius);padding:40px 32px 32px;max-width:480px;width:90%;text-align:center;box-shadow:var(--shadow-hover);animation:modalSlideUp .3s ease}@keyframes modalSlideUp{0%{opacity:0;transform:translateY(20px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.completion-modal__close{position:absolute;top:12px;right:12px;width:32px;height:32px;border-radius:50%;border:none;background:var(--bg-secondary);color:var(--text-tertiary);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--transition)}.completion-modal__close:hover{background:var(--bg-input);color:var(--text-primary)}.completion-modal__close svg{width:18px;height:18px}.completion-modal__icon{width:64px;height:64px;border-radius:50%;background:#10b98126;color:#10b981;display:flex;align-items:center;justify-content:center;margin:0 auto 16px}.completion-modal__icon svg{width:32px;height:32px}.completion-modal__title{font-size:1.5rem;font-weight:700;margin-bottom:6px}.completion-modal__desc{font-size:.95rem;color:var(--text-secondary);margin-bottom:24px}.completion-modal__suggestions{text-align:left;margin-bottom:24px}.completion-modal__suggestions-title{font-size:.85rem;font-weight:600;color:var(--text-secondary);margin-bottom:12px}.completion-modal__grid{display:grid;grid-template-columns:1fr;gap:10px}.suggestion-card{display:flex;align-items:center;gap:12px;padding:10px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition)}.suggestion-card:hover{border-color:var(--accent);background:var(--bg-card)}.suggestion-card__thumb{width:48px;height:30px;border-radius:4px;overflow:hidden;flex-shrink:0;background:var(--bg-input)}.suggestion-card__thumb 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button:hover{background:var(--accent-hover)}.chat-modal__input-area button:disabled{opacity:.5;cursor:not-allowed}.chat-typing{display:flex;align-items:center;gap:4px;padding:10px 14px}.chat-typing span{width:8px;height:8px;background:var(--text-tertiary);border-radius:50%;animation:typingBounce 1.2s ease-in-out infinite}.chat-typing span:nth-child(2){animation-delay:.2s}.chat-typing span:nth-child(3){animation-delay:.4s}@keyframes typingBounce{0%,60%,to{transform:translateY(0)}30%{transform:translateY(-6px)}}@media(max-width:640px){.chat-modal{padding:0}.chat-modal__content{width:100%;height:100%;max-height:100%;border-radius:0}.chat-modal__header,.chat-modal__messages{padding:12px 16px}.chat-modal__input-area{padding:8px 12px}}.footer[data-astro-cid-sz7xmlte]{text-align:center;padding:32px 24px;color:var(--text-tertiary);font-size:.85rem;border-top:1px solid var(--border);margin-top:auto}a[data-astro-cid-sz7xmlte]:hover{color:var(--text-primary)}