*{box-sizing:border-box;margin:0;padding:0}:root{--bg-primary:#0f0f1a;--bg-secondary:#1a1a2e;--bg-card:#16213e;--bg-card-hover:#1f2f50;--text-primary:#eaeaea;--text-secondary:#a0a0b0;--text-muted:#6a6a7a;--accent:#4f8cff;--accent-soft:rgba(79,140,255,.15);--success:#4ade80;--warning:#fbbf24;--border:#2a2a4a;--shadow:rgba(0,0,0,.3)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background:var(--bg-primary);color:var(--text-primary);min-height:100vh;line-height:1.5}.container{max-width:600px;margin:0 auto;padding:16px}.header{text-align:center;padding:24px 0;border-bottom:1px solid var(--border);margin-bottom:20px}.header h1{font-size:24px;font-weight:600;margin-bottom:8px}.header .subtitle{color:var(--text-secondary);font-size:14px}.group-selector{margin-bottom:24px}.group-selector label{display:block;font-size:14px;color:var(--text-secondary);margin-bottom:8px}.group-selector select{width:100%;padding:12px 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.2s}.lesson-card:last-child{border-bottom:none}.lesson-card:hover{background:var(--bg-card-hover)}.lesson-number{width:36px;height:36px;background:var(--accent);color:#fff;border-radius:10px;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:16px;flex-shrink:0}.lesson-info{flex:1 1;min-width:0}.lesson-time{font-size:13px;color:var(--accent);font-weight:500;margin-bottom:4px}.lesson-subject{font-size:15px;font-weight:500;margin-bottom:6px;word-wrap:break-word}.lesson-meta{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--text-secondary)}.lesson-meta span{display:inline-flex;align-items:center;gap:4px}.lesson-type{padding:2px 8px;background:var(--accent-soft);color:var(--accent);border-radius:6px;font-size:12px;font-weight:500}.loading-container{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px 20px;color:var(--text-secondary)}.spinner{width:40px;height:40px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite;margin-bottom:16px}@keyframes spin{to{transform:rotate(1turn)}}.error-container{text-align:center;padding:40px 20px;background:var(--bg-secondary);border-radius:16px;margin-top:20px}.error-container h3{color:#f87171;margin-bottom:8px}.error-container p{color:var(--text-secondary);font-size:14px}.retry-button{margin-top:16px;padding:10px 24px;background:var(--accent);color:#fff;border:none;border-radius:10px;font-size:14px;font-weight:500;cursor:pointer;transition:opacity .2s}.retry-button:hover{opacity:.9}.skeleton{background:linear-gradient(90deg,var(--bg-card) 25%,var(--bg-card-hover) 50%,var(--bg-card) 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;border-radius:8px}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.skeleton-card{background:var(--bg-secondary);border-radius:16px;padding:16px;margin-bottom:16px}.skeleton-line{height:16px;margin-bottom:8px}.skeleton-line:last-child{margin-bottom:0}.skeleton-line.short{width:60%}.last-updated{text-align:center;font-size:12px;color:var(--text-muted);padding:16px}@media (max-width:480px){.container{padding:12px}.header{padding:16px 0}.header h1{font-size:20px}.day-header .date{font-size:16px}.lesson-card{padding:12px;gap:10px}.lesson-number{width:32px;height:32px;font-size:14px}.lesson-subject{font-size:14px}}