:root{--gold: #C9A84C;--gold-light: #E8C97A;--gold-dim: #8B6914;--bg: #0D0E12;--bg-card: #14161E;--bg-hover: #1C1F2B;--border: #252836;--text: #E8E9F0;--text-dim: #8B8FA8;--text-faint: #4A4E62;--green: #2ECC71;--red: #E74C3C;--amber: #F39C12;--blue: #5B8CFF;--purple: #8B5CF6;--radius: 12px;--radius-sm: 8px;--shadow: 0 4px 24px rgba(0,0,0,.4);--shadow-gold: 0 0 20px rgba(201,168,76,.15)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:Sora,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;line-height:1.6;-webkit-font-smoothing:antialiased}.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:radial-gradient(ellipse 80% 60% at 50% 0%,rgba(201,168,76,.08) 0%,transparent 70%),var(--bg);padding:24px}.auth-card{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:40px 36px;width:100%;max-width:420px;box-shadow:var(--shadow)}.auth-logo{font-size:22px;font-weight:700;letter-spacing:-.5px;color:var(--gold);margin-bottom:24px}.auth-logo span{color:var(--text-dim);font-weight:300}.auth-card h2{font-size:24px;font-weight:600;margin-bottom:4px}.auth-sub{color:var(--text-dim);font-size:14px;margin-bottom:28px}.demo-box{background:#c9a84c0f;border:1px solid rgba(201,168,76,.2);border-radius:var(--radius-sm);padding:12px 14px;font-size:12.5px;font-family:JetBrains Mono,monospace;color:var(--gold-light);margin-bottom:24px;line-height:1.8}.form-group{margin-bottom:16px}.form-group label{display:block;font-size:13px;font-weight:500;color:var(--text-dim);margin-bottom:6px;letter-spacing:.02em;text-transform:uppercase;font-size:11px}.form-group input,.form-group select,.notes-input{width:100%;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px 14px;color:var(--text);font-family:Sora,sans-serif;font-size:14px;outline:none;transition:border-color .2s}.form-group input:focus,.form-group select:focus,.notes-input:focus{border-color:var(--gold-dim);box-shadow:0 0 0 3px #c9a84c1a}.form-group select option{background:var(--bg-card)}.err-banner{background:#e74c3c1a;border:1px solid rgba(231,76,60,.3);border-radius:var(--radius-sm);padding:10px 14px;font-size:13.5px;color:#f1948a;margin-bottom:16px}.auth-link{text-align:center;margin-top:18px;font-size:13.5px;color:var(--text-dim)}.auth-link a{color:var(--gold);text-decoration:none;font-weight:500}.dashboard{min-height:100vh;display:flex;flex-direction:column}.topbar{background:var(--bg-card);border-bottom:1px solid var(--border);padding:0 28px;height:60px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:100}.topbar-logo{font-size:18px;font-weight:700;color:var(--gold);letter-spacing:-.3px}.topbar-right{display:flex;align-items:center;gap:12px}.topbar-user{font-size:13px;color:var(--text-dim)}.dash-main{max-width:1100px;margin:0 auto;padding:36px 28px;width:100%}.dash-hero{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:36px;gap:16px;flex-wrap:wrap}.dash-hero h1{font-size:28px;font-weight:700;letter-spacing:-.5px;margin-bottom:4px}.dash-hero p{color:var(--text-dim);font-size:14px}.section-title{font-size:14px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text-dim);margin-bottom:16px;margin-top:32px;padding-bottom:8px;border-bottom:1px solid var(--border)}.grid-3{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;transition:border-color .2s,box-shadow .2s}.card:hover{border-color:var(--gold-dim);box-shadow:var(--shadow-gold)}.card.faded{opacity:.6}.card.selected{border-color:var(--gold);box-shadow:var(--shadow-gold)}.card-top{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:12px;gap:8px}.card-title{font-size:16px;font-weight:600;margin-bottom:2px}.card-sub{font-size:13px;color:var(--text-dim)}.card-time{font-size:12px;font-family:JetBrains Mono,monospace;color:var(--text-dim);background:var(--bg);padding:4px 8px;border-radius:6px;white-space:nowrap}.badge{font-size:11px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;padding:3px 9px;border-radius:20px;white-space:nowrap}.badge-pending{background:#f39c1226;color:#f39c12}.badge-confirmed{background:#2ecc711f;color:#2ecc71}.badge-completed{background:#5b8cff1f;color:#5b8cff}.badge-cancelled{background:#e74c3c1f;color:#e74c3c}.badge-absent{background:#8b5cf61f;color:#a78bfa}.meet-link{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--blue);text-decoration:none;padding:6px 12px;background:#5b8cff14;border-radius:6px;border:1px solid rgba(91,140,255,.2);margin-top:12px;transition:background .2s}.meet-link:hover{background:#5b8cff26}.action-row{display:flex;gap:8px;margin-top:14px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;gap:6px;padding:9px 18px;border-radius:var(--radius-sm);font-family:Sora,sans-serif;font-size:13.5px;font-weight:500;border:none;cursor:pointer;transition:all .2s;text-decoration:none;white-space:nowrap}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-gold{background:var(--gold);color:#0d0e12;font-weight:600}.btn-gold:hover:not(:disabled){background:var(--gold-light)}.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text-dim)}.btn-outline:hover:not(:disabled){border-color:var(--gold-dim);color:var(--text)}.btn-ghost{background:transparent;color:var(--text-dim);padding:7px 12px}.btn-ghost:hover{color:var(--text)}.btn-green{background:#2ecc711a;border:1px solid rgba(46,204,113,.3);color:var(--green);font-size:13px;padding:7px 14px}.btn-green:hover:not(:disabled){background:#2ecc7133}.btn-red{background:#e74c3c1a;border:1px solid rgba(231,76,60,.3);color:var(--red);font-size:13px;padding:7px 14px}.btn-red:hover:not(:disabled){background:#e74c3c33}.btn-amber{background:#f39c121a;border:1px solid rgba(243,156,18,.3);color:var(--amber);font-size:13px;padding:7px 14px}.btn-amber:hover:not(:disabled){background:#f39c1233}.empty{text-align:center;padding:60px 24px;color:var(--text-dim)}.empty-icon{font-size:40px;margin-bottom:12px}.empty p{margin-bottom:20px;font-size:14px}.toast{padding:12px 16px;border-radius:var(--radius-sm);font-size:13.5px;margin-top:14px}.toast.success{background:#2ecc711a;border:1px solid rgba(46,204,113,.3);color:var(--green)}.toast.error{background:#e74c3c1a;border:1px solid rgba(231,76,60,.3);color:#f1948a}.toast.info{background:#c9a84c14;border:1px solid rgba(201,168,76,.2);color:var(--gold-light);font-family:JetBrains Mono,monospace;font-size:12px;white-space:pre-wrap;max-height:200px;overflow-y:auto}.teacher-card{cursor:pointer;display:flex;gap:16px}.teacher-avatar{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,var(--gold-dim),var(--gold));display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:700;color:var(--bg);flex-shrink:0}.teacher-rate{font-size:13px;font-weight:600;color:var(--gold);font-family:JetBrains Mono,monospace;margin-top:4px}.teacher-bio{font-size:12px;color:var(--text-dim);margin-top:4px}.teacher-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}.tag{font-size:11px;padding:2px 8px;border-radius:20px;background:#c9a84c14;border:1px solid rgba(201,168,76,.15);color:var(--gold-light)}.slots-wrap{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}.slot-btn{display:flex;flex-direction:column;align-items:center;padding:10px 14px;border-radius:var(--radius-sm);background:var(--bg-card);border:1px solid var(--border);cursor:pointer;transition:all .15s;min-width:70px}.slot-btn:hover{border-color:var(--gold-dim)}.slot-btn.active{border-color:var(--gold);background:#c9a84c14}.slot-day{font-size:10px;font-weight:600;text-transform:uppercase;color:var(--text-dim);letter-spacing:.05em}.slot-date{font-size:15px;font-weight:700;color:var(--text);font-family:JetBrains Mono}.slot-time{font-size:11px;color:var(--gold);font-family:JetBrains Mono}.notes-input{resize:vertical;margin-bottom:16px}.loading{text-align:center;padding:40px;color:var(--text-dim);font-size:14px}.spinner{display:inline-block;width:16px;height:16px;border:2px solid var(--border);border-top-color:var(--gold);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.sandbox-banner{background:#c9a84c0f;border-bottom:1px solid rgba(201,168,76,.15);padding:6px 28px;font-size:12px;color:var(--gold-dim);text-align:center;font-family:JetBrains Mono,monospace;letter-spacing:.03em}.stats-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;margin-bottom:32px}.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:16px 20px}.stat-label{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text-dim);margin-bottom:6px}.stat-value{font-size:26px;font-weight:700;color:var(--text);font-family:JetBrains Mono}.stat-value.gold{color:var(--gold)}.stat-value.green{color:var(--green)}