:root{--navy:#101d35;--navy2:#172947;--blue:#2764d8;--ink:#172033;--muted:#68758b;--line:#e5eaf1;--bg:#f4f7fb;--gold:#d5a62e}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.5 system-ui,-apple-system,Segoe UI,Arial,sans-serif}.top{background:var(--navy);color:#fff;padding:16px max(20px,calc((100% - 1120px)/2));display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}.brand{font-weight:900;letter-spacing:1.5px;color:#fff;text-decoration:none;font-size:20px}.brand span{color:#76a5ff}.top nav{display:flex;gap:18px;flex-wrap:wrap}.top nav a{color:#dce7fb;text-decoration:none;font-size:14px}.top nav a:hover{color:#fff}.container{max-width:1120px;margin:28px auto;padding:0 20px;min-height:70vh}.hero{background:linear-gradient(120deg,#101d35,#234b88);color:white;border-radius:18px;padding:32px;margin-bottom:22px}.hero h1{font-size:clamp(28px,5vw,44px);margin:0 0 8px}.hero p{color:#dce7fb;margin:0}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px}.card{background:white;border:1px solid var(--line);border-radius:14px;padding:20px;margin-bottom:16px;box-shadow:0 4px 18px rgba(20,40,80,.04)}.card h2,.card h3{margin:0 0 14px}.stat{font-size:30px;font-weight:800;color:var(--navy)}.muted,small{color:var(--muted)}table{width:100%;border-collapse:collapse;background:#fff}th,td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line)}th{font-size:12px;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);background:#f8faff}tr:last-child td{border-bottom:0}.rank{font-weight:800;color:var(--navy);width:50px}.gold{color:#b88912}.silver{color:#7b8798}.bronze{color:#a86a3b}.btn,button{display:inline-block;background:var(--blue);color:#fff;border:0;border-radius:8px;padding:10px 15px;text-decoration:none;font-weight:700;cursor:pointer}.btn.secondary{background:#eaf0fa;color:var(--navy)}input,select,textarea{width:100%;padding:10px 12px;border:1px solid #cfd8e6;border-radius:8px;font:inherit;background:white}label{display:block;font-weight:650;margin:12px 0 6px}.form-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px}.alert{padding:12px 14px;border-radius:9px;background:#fff4db;color:#76530a;margin-bottom:15px}.success{background:#e7f7ed;color:#176238}.actions{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}.badge{display:inline-block;background:#eaf0fa;color:#254b87;border-radius:99px;padding:3px 9px;font-size:12px;font-weight:700}.empty{padding:22px;text-align:center;color:var(--muted)}.profile-head{display:flex;align-items:center;gap:16px}.avatar{width:58px;height:58px;border-radius:50%;background:#e7efff;color:#2458b7;display:grid;place-items:center;font-weight:900;font-size:22px}footer{text-align:center;padding:25px;color:var(--muted);font-size:13px}@media(max-width:600px){.top{align-items:flex-start}.top nav{gap:12px}.container{margin:18px auto;padding:0 12px}.hero{padding:24px 20px}th,td{padding:9px 8px;font-size:13px}.hide-mobile{display:none}}