*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}:root{--bg-primary: #0a0a0f;--bg-secondary: #12121a;--bg-card: #1a1a2e;--bg-card-hover: #1f1f35;--bg-glass: rgba(26, 26, 46, .7);--text-primary: #f0f0f5;--text-secondary: #9999b3;--text-muted: #666680;--accent: #7c3aed;--accent-light: #a78bfa;--accent-glow: rgba(124, 58, 237, .3);--success: #10b981;--success-bg: rgba(16, 185, 129, .1);--danger: #ef4444;--danger-bg: rgba(239, 68, 68, .1);--warning: #f59e0b;--warning-bg: rgba(245, 158, 11, .1);--info: #3b82f6;--info-bg: rgba(59, 130, 246, .1);--border: rgba(255, 255, 255, .06);--border-accent: rgba(124, 58, 237, .3);--radius: 12px;--radius-lg: 16px;--radius-xl: 20px;--shadow: 0 4px 24px rgba(0, 0, 0, .3);--shadow-lg: 0 8px 40px rgba(0, 0, 0, .4);--transition: .2s cubic-bezier(.4, 0, .2, 1);--font: "Inter", -apple-system, BlinkMacSystemFont, sans-serif}html{font-size:16px;scroll-behavior:smooth}body{font-family:var(--font);background:var(--bg-primary);color:var(--text-primary);line-height:1.6;min-height:100vh;-webkit-font-smoothing:antialiased}.app{display:flex;min-height:100vh}.sidebar{width:260px;background:var(--bg-secondary);border-right:1px solid var(--border);padding:24px 16px;display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;z-index:100;transition:transform var(--transition)}.sidebar-brand{display:flex;align-items:center;gap:12px;padding:8px 12px;margin-bottom:32px}.sidebar-brand-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--accent),#ec4899);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;font-size:20px}.sidebar-brand-text{font-size:20px;font-weight:800;letter-spacing:-.5px;background:linear-gradient(135deg,var(--text-primary),var(--accent-light));-webkit-background-clip:text;-webkit-text-fill-color:transparent}.sidebar-nav{display:flex;flex-direction:column;gap:4px;flex:1}.nav-item{display:flex;align-items:center;gap:12px;padding:12px 16px;border-radius:var(--radius);cursor:pointer;transition:all var(--transition);font-size:14px;font-weight:500;color:var(--text-secondary);border:none;background:none;width:100%;text-align:left}.nav-item:hover{background:var(--bg-card);color:var(--text-primary)}.nav-item.active{background:var(--accent-glow);color:var(--accent-light);border:1px solid var(--border-accent)}.nav-icon{font-size:18px;width:24px;text-align:center}.main-content{flex:1;margin-left:260px;padding:32px;min-height:100vh}.page-header{margin-bottom:32px}.page-header h1{font-size:28px;font-weight:800;letter-spacing:-.5px;margin-bottom:4px}.page-header p{color:var(--text-secondary);font-size:14px}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;transition:all var(--transition)}.card:hover{border-color:var(--border-accent);box-shadow:0 0 20px var(--accent-glow)}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:32px}.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px;position:relative;overflow:hidden}.stat-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--accent),#ec4899)}.stat-card .stat-icon{font-size:28px;margin-bottom:12px}.stat-card .stat-value{font-size:32px;font-weight:800;letter-spacing:-1px;line-height:1}.stat-card .stat-label{font-size:13px;color:var(--text-secondary);margin-top:4px}.class-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;transition:all var(--transition);position:relative;overflow:hidden}.class-card:hover{transform:translateY(-2px);border-color:var(--border-accent);box-shadow:0 8px 30px var(--accent-glow)}.class-card .class-day{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:1.5px;color:var(--accent-light);margin-bottom:8px}.class-card .class-name{font-size:18px;font-weight:700;margin-bottom:12px}.class-card .class-meta{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}.class-card .class-meta span{font-size:13px;color:var(--text-secondary);display:flex;align-items:center;gap:6px}.class-card .spots-badge{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;border-radius:20px;font-size:12px;font-weight:600}.spots-badge.available{background:var(--success-bg);color:var(--success)}.spots-badge.limited{background:var(--warning-bg);color:var(--warning)}.spots-badge.full{background:var(--danger-bg);color:var(--danger)}.plan-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-xl);padding:32px;text-align:center;transition:all var(--transition);position:relative}.plan-card.featured{border-color:var(--accent);box-shadow:0 0 40px var(--accent-glow)}.plan-card.featured:before{content:"⭐ Most Popular";position:absolute;top:-12px;left:50%;transform:translate(-50%);background:linear-gradient(135deg,var(--accent),#ec4899);color:#fff;padding:4px 16px;border-radius:20px;font-size:12px;font-weight:700}.plan-card:hover{transform:translateY(-4px);box-shadow:0 12px 40px #0000004d}.plan-card .plan-name{font-size:22px;font-weight:700;margin-bottom:4px}.plan-card .plan-duration{font-size:13px;color:var(--text-muted);margin-bottom:16px}.plan-card .plan-price{font-size:40px;font-weight:900;letter-spacing:-2px;margin-bottom:4px}.plan-card .plan-price span{font-size:16px;font-weight:400;color:var(--text-secondary)}.plan-card .plan-features{list-style:none;margin:20px 0;text-align:left}.plan-card .plan-features li{padding:8px 0;font-size:14px;color:var(--text-secondary);border-bottom:1px solid var(--border);display:flex;align-items:center;gap:8px}.plan-card .plan-features li:last-child{border-bottom:none}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;border-radius:var(--radius);border:none;cursor:pointer;font-family:var(--font);font-size:14px;font-weight:600;transition:all var(--transition);text-decoration:none}.btn-primary{background:linear-gradient(135deg,var(--accent),#9333ea);color:#fff;box-shadow:0 4px 15px var(--accent-glow)}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 25px var(--accent-glow)}.btn-secondary{background:var(--bg-card);color:var(--text-primary);border:1px solid var(--border)}.btn-secondary:hover{border-color:var(--border-accent);background:var(--bg-card-hover)}.btn-danger{background:var(--danger-bg);color:var(--danger);border:1px solid rgba(239,68,68,.2)}.btn-danger:hover{background:#ef444433}.btn-sm{padding:6px 14px;font-size:13px}.btn-block{width:100%}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none!important}.form-group{margin-bottom:16px}.form-group label{display:block;font-size:13px;font-weight:600;color:var(--text-secondary);margin-bottom:6px}.form-group input,.form-group select{width:100%;padding:10px 14px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius);color:var(--text-primary);font-family:var(--font);font-size:14px;transition:border-color var(--transition)}.form-group input:focus,.form-group select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000b3;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .2s ease}.modal{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-xl);padding:32px;width:100%;max-width:480px;box-shadow:var(--shadow-lg);animation:slideUp .3s ease}.modal h2{font-size:20px;font-weight:700;margin-bottom:20px}.modal-actions{display:flex;gap:12px;margin-top:24px}.notification-item{display:flex;align-items:flex-start;gap:12px;padding:16px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:8px;transition:all var(--transition)}.notification-item:hover{border-color:var(--border-accent)}.notification-icon{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0}.notification-icon.booking{background:var(--info-bg)}.notification-icon.member{background:var(--success-bg)}.notification-icon.cancel{background:var(--danger-bg)}.notification-body .notif-message{font-size:14px;margin-bottom:4px}.notification-body .notif-time{font-size:12px;color:var(--text-muted)}.booking-item{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:8px;transition:all var(--transition)}.booking-item:hover{border-color:var(--border-accent)}.booking-info h4{font-size:15px;font-weight:600;margin-bottom:2px}.booking-info span{font-size:13px;color:var(--text-secondary)}.member-item{display:flex;align-items:center;gap:16px;padding:16px 20px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:8px}.member-avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,var(--accent),#ec4899);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;flex-shrink:0}.member-info h4{font-size:15px;font-weight:600}.member-info span{font-size:13px;color:var(--text-secondary)}.empty-state{text-align:center;padding:60px 20px;color:var(--text-muted)}.empty-state .empty-icon{font-size:48px;margin-bottom:16px}.empty-state p{font-size:15px}.toast{position:fixed;bottom:24px;right:24px;background:var(--bg-card);border:1px solid var(--border-accent);border-radius:var(--radius);padding:14px 20px;box-shadow:var(--shadow-lg);animation:slideUp .3s ease;z-index:2000;display:flex;align-items:center;gap:10px;font-size:14px}.toast.success{border-color:var(--success)}.toast.error{border-color:var(--danger)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.loading{animation:pulse 1.5s infinite;text-align:center;padding:40px;color:var(--text-muted)}.section-title{font-size:18px;font-weight:700;margin-bottom:16px;display:flex;align-items:center;gap:8px}@media (max-width: 768px){.sidebar{transform:translate(-100%)}.main-content{margin-left:0;padding:20px}.card-grid{grid-template-columns:1fr}.stats-grid{grid-template-columns:repeat(2,1fr)}.modal{margin:16px}}