.admin-body{background:#f5f7f8;min-height:100vh}.admin-header{height:86px;padding:10px clamp(18px,4vw,55px);display:flex;align-items:center;justify-content:space-between;background:white;border-bottom:1px solid var(--line)}.admin-main{max-width:1180px;margin:0 auto;padding:45px 24px 80px}.admin-login{max-width:480px;margin:30px auto;padding:36px;background:#fff;border:1px solid var(--line);border-radius:24px;text-align:center;box-shadow:0 14px 45px #25303b12}.admin-login img{width:135px;height:135px;object-fit:contain}.admin-login form,.account-dialog form:not([method=dialog]){display:grid;gap:16px;text-align:left}.admin-login label,.account-dialog label{display:grid;gap:7px;font-weight:700}.admin-login input,.account-dialog input{width:100%;border:1px solid #cfd6df;border-radius:12px;padding:11px 13px}.dashboard-title{display:flex;justify-content:space-between;gap:20px;align-items:start}.student-card{background:white;border:1px solid var(--line);border-radius:24px;padding:28px;margin-top:25px;box-shadow:0 8px 30px #25303b0a}.student-summary{display:flex;align-items:center;gap:18px}.student-summary img{width:84px;height:84px;border-radius:50%;object-fit:cover;background:var(--sky)}.student-summary h2,.student-summary p{margin-bottom:3px}.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:25px 0}.metric-grid div{background:#f4f8fb;padding:18px;border-radius:15px;display:flex;flex-direction:column}.metric-grid b{font-size:2rem;color:var(--blue-dark)}.mastery-table{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:25px}.mastery-table>div{display:grid;gap:6px;background:#fbfaf7;border:1px solid var(--line);padding:15px;border-radius:13px}.mastery-table strong{width:max-content;padding:3px 9px;border-radius:20px}.mastery-table strong[data-status=learning]{background:#eef3f8}.mastery-table strong[data-status=review]{background:#fff0cc;color:#815a00}.mastery-table strong[data-status=mastered]{background:#e5f5e7;color:#236733}.study-days{display:flex;flex-wrap:wrap;gap:8px}.study-days time{padding:4px 10px;background:var(--sky);border-radius:20px;font-size:.85rem}@media(max-width:680px){.metric-grid{grid-template-columns:1fr 1fr}.mastery-table{grid-template-columns:1fr}.admin-main{padding:25px 14px}.student-card{padding:18px}}