:root{--bg:#f5f7fb;--card:#fff;--text:#1f2937;--muted:#6b7280;--primary:#5b5bd6;--primary2:#8b5cf6;--accent:#f59e0b;--success:#10b981;--danger:#ef4444;--shadow:0 12px 30px rgba(79,70,229,.12)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Tahoma,Arial,sans-serif;background:linear-gradient(180deg,#f8fafc,#e2e8f0);color:var(--text)}a{text-decoration:none;color:inherit}img{max-width:100%;display:block}.container{width:min(1200px,92%);margin:auto}.topbar{background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff;padding:18px 0;box-shadow:var(--shadow)}.brand{display:flex;align-items:center;justify-content:space-between;gap:16px}.brand .logo{width:58px;height:58px;border-radius:18px;background:#ffffff26;display:flex;align-items:center;justify-content:center;font-size:30px}.brand h1{margin:0;font-size:28px}.brand p{margin:5px 0 0;color:#eef2ff}.slider{margin:22px 0 28px;overflow:hidden;border-radius:28px;position:relative;box-shadow:var(--shadow)}.slides{display:flex;width:300%;animation:slideShow 15s infinite}.slide{width:100%;padding:42px 28px;min-height:220px;color:#fff;display:flex;align-items:center}.slide:nth-child(1){background:linear-gradient(135deg,#6366f1,#a855f7)}.slide:nth-child(2){background:linear-gradient(135deg,#0ea5e9,#14b8a6)}.slide:nth-child(3){background:linear-gradient(135deg,#f97316,#ef4444)}.slide h2{margin:0 0 12px;font-size:34px}.slide p{margin:0 0 18px;font-size:18px;max-width:520px}.btn{display:inline-block;border:none;border-radius:16px;padding:12px 18px;background:#111827;color:#fff;font-weight:700;cursor:pointer}.btn.light{background:#fff;color:#111827}.section{margin:0 0 28px}.section-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px}.section-head h3{margin:0;font-size:28px}.badge,.pill{display:inline-block;padding:8px 12px;border-radius:999px;font-size:12px;font-weight:700}.badge{background:#e0e7ff;color:#4338ca}.pill.green{background:#dcfce7;color:#166534}.pill.yellow{background:#fef3c7;color:#92400e}.pill.purple{background:#ede9fe;color:#6d28d9}.muted{color:var(--muted)}.small{font-size:12px}.mt{margin-top:10px}.mb8{margin-bottom:8px}.mt14{margin-top:14px}.row-between{display:flex;justify-content:space-between;align-items:center;gap:10px}
.student-card{display:flex;align-items:center;gap:16px;padding:18px;background:#fff;border-radius:28px;box-shadow:var(--shadow);margin:-18px auto 28px;position:relative;z-index:2}.avatar{width:86px;height:86px;border-radius:50%;background:linear-gradient(135deg,#e0e7ff,#ede9fe);display:flex;align-items:center;justify-content:center;overflow:hidden}.avatar.large{width:94px;height:94px;font-size:40px}.avatar img,.face-inner img,.mini-avatar img{width:100%;height:100%;object-fit:cover}.emoji-fallback{font-size:38px;line-height:1}
.quick-grid,.grid-2,.grid-3{display:grid;gap:18px}.quick-grid,.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.quick,.card,.panel,.free-item,.admin-card{background:var(--card);border-radius:24px;box-shadow:var(--shadow)}.quick{padding:20px;color:#fff}.quick:nth-child(1){background:linear-gradient(135deg,#6366f1,#8b5cf6)}.quick:nth-child(2){background:linear-gradient(135deg,#10b981,#22c55e)}.quick:nth-child(3){background:linear-gradient(135deg,#f59e0b,#f97316)}.quick:nth-child(4){background:linear-gradient(135deg,#ec4899,#f43f5e)}.quick .icon{font-size:34px;margin-bottom:14px}.quick h4{margin:0 0 8px}.card{overflow:hidden}.card-top{display:flex;align-items:center;justify-content:center;height:110px;background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;font-size:52px}.card-body{padding:18px}.price{font-size:22px;font-weight:800;color:#4338ca}.list{display:grid;gap:14px}.live-item,.admin-row,.registration-item{background:#fff;border-radius:20px;padding:16px;box-shadow:var(--shadow)}.live-item,.admin-row,.registration-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.free-item{padding:24px;text-align:center}.free-icon{font-size:42px;margin-bottom:10px}
.marquee-wrap{overflow:hidden;background:#fff;border-radius:24px;box-shadow:var(--shadow);padding:18px 0}.marquee{display:flex;gap:18px;width:max-content;animation:marqueeMove 22s linear infinite}.top-item{min-width:190px;text-align:center;padding:8px 14px}.face-ring{width:96px;height:96px;border-radius:50%;padding:4px;margin:0 auto 12px;background:conic-gradient(from 0deg,#6366f1,#8b5cf6,#0ea5e9,#22c55e,#f59e0b,#6366f1);animation:spinRing 5s linear infinite}.face-inner{width:100%;height:100%;border-radius:50%;overflow:hidden;background:#fff;display:flex;align-items:center;justify-content:center}
.tabs{display:flex;gap:10px;flex-wrap:wrap}.tab-btn{border:none;background:#e5e7eb;color:#1f2937;border-radius:999px;padding:10px 16px;font-weight:700;cursor:pointer}.tab-btn.active{background:#4f46e5;color:#fff}.view{display:none}.view.active{display:block}.admin-shell{padding-bottom:30px}.admin-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}.admin-grid.wide{grid-template-columns:420px 1fr}.panel{padding:22px}.admin-card{padding:18px;text-align:center}.table-like{display:grid;gap:12px}.admin-student-meta{display:flex;align-items:center;gap:12px}.mini-avatar{width:54px;height:54px;border-radius:50%;overflow:hidden;background:#eef2ff;display:flex;align-items:center;justify-content:center}.login-wrap{min-height:100vh;display:grid;place-items:center;padding:20px}.login-card{width:min(480px,94%);background:#fff;padding:26px;border-radius:26px;box-shadow:var(--shadow)}.field{display:grid;gap:8px;margin-bottom:14px}.field input,.field select,.field textarea{width:100%;padding:13px 14px;border:1px solid #d1d5db;border-radius:16px;font:inherit;background:#fff}.checkbox label{display:flex;align-items:center;gap:8px}.note{background:#fee2e2;color:#991b1b;padding:14px 16px;border-radius:16px;margin:0 0 20px}.success-note{background:#dcfce7;color:#166534}.register-panel{padding:22px}.register-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.register-grid .full{grid-column:1 / -1}.inline-form{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.footer{padding:18px;text-align:center;color:#475569}
@keyframes slideShow{0%,28%{transform:translateX(0)}33%,61%{transform:translateX(-33.3333%)}66%,94%{transform:translateX(-66.6666%)}100%{transform:translateX(0)}}@keyframes marqueeMove{0%{transform:translateX(-20%)}100%{transform:translateX(0)}}@keyframes spinRing{to{transform:rotate(360deg)}}
@media (max-width: 992px){.grid-3,.admin-grid,.admin-grid.wide{grid-template-columns:1fr 1fr}.slide h2{font-size:28px}.section-head h3{font-size:24px}}
@media (max-width: 700px){.brand h1{font-size:22px}.slide{padding:28px 18px;min-height:180px}.slide h2{font-size:24px}.slide p{font-size:15px}.student-card{margin-top:-20px;flex-direction:column;text-align:center}.quick-grid,.grid-2,.grid-3,.admin-grid,.admin-grid.wide,.register-grid{grid-template-columns:1fr}.section-head{flex-direction:column;align-items:flex-start}.section-head h3{font-size:20px}.live-item,.admin-row,.registration-head{flex-direction:column;align-items:flex-start}.btn{width:auto}.top-item{min-width:150px}.face-ring{width:82px;height:82px}}