:root{--bg-primary: #0f0f1a;--bg-secondary: #1a1a2e;--bg-tertiary: #252542;--bg-card: rgba(30, 30, 50, .8);--bg-card-hover: rgba(40, 40, 70, .9);--text-primary: #ffffff;--text-secondary: #a0a0b0;--text-muted: #6b6b80;--accent-primary: #6366f1;--accent-primary-light: #818cf8;--accent-secondary: #22d3ee;--accent-success: #10b981;--accent-warning: #f59e0b;--accent-danger: #ef4444;--gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);--gradient-secondary: linear-gradient(135deg, #22d3ee 0%, #6366f1 100%);--gradient-success: linear-gradient(135deg, #10b981 0%, #22d3ee 100%);--gradient-danger: linear-gradient(135deg, #ef4444 0%, #f59e0b 100%);--border-color: rgba(255, 255, 255, .1);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .2);--shadow-md: 0 4px 16px rgba(0, 0, 0, .3);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .4);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px;--transition-fast: .15s ease;--transition-normal: .25s ease;--transition-slow: .4s ease}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg-primary);color:var(--text-primary);min-height:100vh;line-height:1.6}#root{min-height:100vh}.app-layout{display:flex;min-height:100vh}.sidebar{width:260px;background:var(--bg-secondary);border-right:1px solid var(--border-color);padding:24px 16px;display:flex;flex-direction:column;position:fixed;height:100vh;overflow-y:auto}.sidebar-logo{display:flex;align-items:center;gap:12px;padding:0 8px;margin-bottom:32px}.sidebar-logo h1{font-size:1.25rem;font-weight:700;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.sidebar-nav{display:flex;flex-direction:column;gap:4px}.nav-link{display:flex;align-items:center;gap:12px;padding:12px 16px;border-radius:var(--radius-md);color:var(--text-secondary);text-decoration:none;font-weight:500;transition:all var(--transition-fast)}.nav-link:hover{background:var(--bg-tertiary);color:var(--text-primary)}.nav-link.active{background:var(--gradient-primary);color:#fff}.nav-link svg{width:20px;height:20px}.main-content{flex:1;margin-left:260px;padding:32px;min-height:100vh}.page-header{margin-bottom:32px}.page-header h1{font-size:1.75rem;font-weight:700;margin-bottom:8px}.page-header p{color:var(--text-secondary)}.card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:24px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);transition:all var(--transition-normal)}.card:hover{background:var(--bg-card-hover);transform:translateY(-2px);box-shadow:var(--shadow-md)}.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.card-title{font-size:1.125rem;font-weight:600}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;margin-bottom:32px}.stat-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:20px;display:flex;align-items:center;gap:16px}.stat-icon{width:48px;height:48px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center}.stat-icon.primary{background:var(--gradient-primary)}.stat-icon.secondary{background:var(--gradient-secondary)}.stat-icon.success{background:var(--gradient-success)}.stat-icon.danger{background:var(--gradient-danger)}.stat-icon svg{width:24px;height:24px;color:#fff}.stat-content h3{font-size:1.5rem;font-weight:700}.stat-content p{color:var(--text-secondary);font-size:.875rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;border:none;border-radius:var(--radius-md);font-size:.9375rem;font-weight:600;cursor:pointer;transition:all var(--transition-fast)}.btn-primary{background:var(--gradient-primary);color:#fff}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 4px 12px #6366f166}.btn-secondary{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover{background:var(--bg-card-hover)}.btn-danger{background:var(--accent-danger);color:#fff}.btn-danger:hover{background:#dc2626}.btn-sm{padding:6px 12px;font-size:.8125rem}.btn-icon{width:36px;height:36px;padding:0;border-radius:var(--radius-sm)}.form-group{margin-bottom:20px}.form-label{display:block;margin-bottom:8px;font-size:.875rem;font-weight:500;color:var(--text-secondary)}.form-input,.form-select,.form-textarea{width:100%;padding:12px 16px;background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);font-size:.9375rem;transition:all var(--transition-fast)}.form-input:focus,.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--accent-primary);box-shadow:0 0 0 3px #6366f133}.form-input::placeholder{color:var(--text-muted)}.form-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px}.checkbox-group{display:flex;flex-wrap:wrap;gap:12px}.checkbox-item{display:flex;align-items:center;gap:8px;padding:8px 16px;background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast)}.checkbox-item:hover{border-color:var(--accent-primary)}.checkbox-item.selected{background:var(--accent-primary);border-color:var(--accent-primary)}.checkbox-item input{display:none}.table-container{overflow-x:auto}.table{width:100%;border-collapse:collapse}.table th,.table td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--border-color)}.table th{font-size:.75rem;text-transform:uppercase;letter-spacing:.05em;color:var(--text-secondary);font-weight:600}.table tr:hover{background:var(--bg-tertiary)}.tag{display:inline-flex;align-items:center;padding:4px 10px;background:var(--bg-tertiary);border-radius:100px;font-size:.75rem;font-weight:500}.tag-success{background:#10b98133;color:var(--accent-success)}.tag-warning{background:#f59e0b33;color:var(--accent-warning)}.tag-danger{background:#ef444433;color:var(--accent-danger)}.tag-primary{background:#6366f133;color:var(--accent-primary-light)}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}@media(max-width:1024px){.grid-4,.grid-3{grid-template-columns:repeat(2,1fr)}}@media(max-width:768px){.sidebar{transform:translate(-100%);z-index:100}.main-content{margin-left:0;padding:20px}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}.week-plan{display:grid;grid-template-columns:repeat(7,1fr);gap:12px}.day-column{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:16px;min-height:200px}.day-header{font-weight:600;margin-bottom:12px;padding-bottom:12px;border-bottom:1px solid var(--border-color)}.day-videos{display:flex;flex-direction:column;gap:8px}.video-item{padding:8px 12px;background:var(--bg-tertiary);border-radius:var(--radius-sm);font-size:.8125rem;cursor:pointer;transition:all var(--transition-fast)}.video-item:hover{background:var(--bg-card-hover)}.video-item.watched{opacity:.5;text-decoration:line-through}.empty-state{text-align:center;padding:48px;color:var(--text-muted)}.empty-state svg{width:64px;height:64px;margin-bottom:16px;opacity:.5}.empty-state h3{font-size:1.125rem;margin-bottom:8px;color:var(--text-secondary)}.modal-overlay{position:fixed;inset:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px}.modal{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-xl);padding:32px;max-width:600px;width:100%;max-height:90vh;overflow-y:auto}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.modal-header h2{font-size:1.25rem}.modal-close{background:none;border:none;color:var(--text-muted);cursor:pointer;padding:8px}.modal-close:hover{color:var(--text-primary)}.progress-bar{height:8px;background:var(--bg-tertiary);border-radius:100px;overflow:hidden}.progress-fill{height:100%;background:var(--gradient-primary);border-radius:100px;transition:width var(--transition-normal)}.toast{position:fixed;bottom:24px;right:24px;padding:16px 24px;background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);animation:slideIn .3s ease}@keyframes slideIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}.text-center{text-align:center}.text-right{text-align:right}.mt-4{margin-top:16px}.mt-6{margin-top:24px}.mb-4{margin-bottom:16px}.mb-6{margin-bottom:24px}.flex{display:flex}.items-center{align-items:center}.justify-between{justify-content:space-between}.gap-2{gap:8px}.gap-4{gap:16px}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:fadeIn .3s ease}.net-display{font-size:2rem;font-weight:700;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.net-positive{color:var(--accent-success)}.net-negative{color:var(--accent-danger)}.todays-videos-section{border:1px solid rgba(99,102,241,.3);background:linear-gradient(135deg,#1e1e32e6,#19193ccc)}.todays-videos-icon{width:36px;height:36px;border-radius:var(--radius-sm);background:var(--gradient-primary);display:flex;align-items:center;justify-content:center;color:#fff}.today-video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}.today-video-card{background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-md);overflow:hidden;transition:all var(--transition-normal);position:relative}.today-video-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px #6366f133;border-color:var(--accent-primary)}.today-video-card.watched{opacity:.65;border-color:var(--accent-success)}.today-video-card.watched:hover{opacity:.85}.today-video-thumbnail-link{display:block;text-decoration:none;position:relative}.today-video-thumbnail{position:relative;width:100%;aspect-ratio:16 / 9;overflow:hidden;background:var(--bg-secondary)}.today-video-thumbnail img{width:100%;height:100%;object-fit:cover;transition:transform var(--transition-normal)}.today-video-card:hover .today-video-thumbnail img{transform:scale(1.05)}.today-video-thumbnail-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--bg-secondary) 0%,var(--bg-tertiary) 100%);color:var(--text-muted)}.today-video-play-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:#0006;color:#fff;opacity:0;transition:opacity var(--transition-fast)}.today-video-card:hover .today-video-play-overlay{opacity:1}.today-video-play-overlay svg{filter:drop-shadow(0 2px 8px rgba(0,0,0,.5))}.today-video-duration{position:absolute;bottom:8px;right:8px;background:#000000bf;color:#fff;padding:2px 8px;border-radius:4px;font-size:.7rem;font-weight:600;display:flex;align-items:center;gap:4px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.today-video-watched-badge{position:absolute;top:8px;right:8px;width:32px;height:32px;border-radius:50%;background:var(--accent-success);display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:0 2px 8px #10b98166}.today-video-info{padding:12px 14px 14px;display:flex;flex-direction:column;gap:8px}.today-video-title{font-size:.875rem;font-weight:600;line-height:1.4;color:var(--text-primary);text-decoration:none;display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color var(--transition-fast)}.today-video-title:hover{color:var(--accent-primary-light)}.today-video-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.today-video-actions{display:flex;align-items:center;gap:8px;margin-top:4px}.today-video-watch-btn{flex:1;display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:6px 12px;border:1px solid var(--border-color);border-radius:var(--radius-sm);background:var(--bg-secondary);color:var(--text-secondary);font-size:.75rem;font-weight:500;cursor:pointer;transition:all var(--transition-fast)}.today-video-watch-btn:hover{border-color:var(--accent-primary);color:var(--accent-primary-light);background:#6366f11a}.today-video-watch-btn.done{background:#10b98126;border-color:var(--accent-success);color:var(--accent-success)}.today-video-open-btn{width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);background:#ef444426;color:#ef4444;text-decoration:none;transition:all var(--transition-fast)}.today-video-open-btn:hover{background:#ef4444;color:#fff;transform:scale(1.1)}@media(max-width:768px){.today-video-grid{grid-template-columns:1fr}}@media(max-width:480px){.today-video-grid{grid-template-columns:1fr}.today-video-card:hover{transform:none}}.btn-ghost{background:transparent;color:var(--text-secondary);border:none}.btn-ghost:hover{background:var(--bg-tertiary);color:var(--text-primary)}