:root{--brand:#166534;--brand-light:#16a34a;--brand-bg:#f0fdf4;--ink:#1a4731;--muted:#6b7280;--line:#e5e7eb;--danger:#dc2626;--warn:#b45309;--warn-bg:#fef3c7}*{box-sizing:border-box;margin:0;padding:0}body{color:var(--ink);background:#f8fafc;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:14px}button{cursor:pointer;border:none;border-radius:8px;font-family:inherit;font-size:14px}input,select,textarea{border:1px solid var(--line);background:#fff;border-radius:8px;width:100%;padding:9px 12px;font-family:inherit;font-size:14px}input:focus,select:focus{border-color:var(--brand-light);outline:2px solid #86efac}table{border-collapse:collapse;width:100%}th{text-align:left;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);border-bottom:2px solid var(--line);padding:10px 12px;font-size:12px}td{border-bottom:1px solid #f1f5f9;padding:11px 12px}tr:hover td{background:#f8fafc}.login-wrap{background:var(--brand-bg);justify-content:center;align-items:center;min-height:100vh;display:flex}.login-card{background:#fff;border-radius:14px;width:380px;padding:36px;box-shadow:0 4px 20px #00000014}.brand{text-align:center;margin-bottom:4px;font-size:22px;font-weight:800}.brand b{color:var(--brand-light)}.field-label{color:var(--muted);margin:14px 0 4px;font-size:12px;font-weight:600;display:block}.btn{background:var(--brand);color:#fff;width:100%;padding:12px 18px;font-weight:700}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-sm{background:var(--brand);color:#fff;width:auto;padding:8px 14px;font-weight:600}.btn-ghost{color:var(--ink);background:#f1f5f9;width:auto;padding:8px 14px;font-weight:600}.btn-danger{color:var(--danger);border:1px solid var(--danger);background:#fff;width:auto;padding:8px 14px;font-weight:600}.err{color:#991b1b;background:#fef2f2;border:1px solid #fecaca;border-radius:8px;margin-top:12px;padding:10px 12px;font-size:13px}.ok-msg{background:var(--brand-bg);color:var(--brand);border:1px solid #bbf7d0;border-radius:8px;margin-top:12px;padding:10px 12px;font-size:13px}.shell{min-height:100vh;display:flex}.sidebar{background:var(--brand);color:#fff;width:220px;padding:20px 0;position:fixed;top:0;bottom:0}.sidebar .brand{color:#fff;text-align:left;border-bottom:1px solid #ffffff26;padding:0 20px 16px;font-size:17px}.sidebar .brand b{color:#86efac}.nav-item{text-align:left;color:#d1fae5;background:0 0;border-radius:0;width:100%;padding:12px 20px;font-size:14px;display:block}.nav-item:hover{background:#ffffff14}.nav-item.active{color:#fff;background:#ffffff29;border-left:3px solid #86efac;font-weight:700}.main{flex:1;margin-left:220px;padding:24px 28px}.topbar{justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.topbar h1{font-size:20px}.school-chip{color:var(--muted);font-size:12px}.stats{grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px;margin-bottom:22px;display:grid}.stat{border:1px solid var(--line);background:#fff;border-radius:12px;padding:16px 18px}.stat .v{color:var(--brand);font-size:24px;font-weight:800}.stat .l{color:var(--muted);margin-top:2px;font-size:12px}.card{border:1px solid var(--line);background:#fff;border-radius:12px;margin-bottom:16px;padding:18px}.card h3{margin-bottom:12px;font-size:15px}.row{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.grid2{grid-template-columns:1fr 1fr;gap:12px;display:grid}.pill{border-radius:99px;padding:3px 10px;font-size:12px;font-weight:600;display:inline-block}.pill.green{color:var(--brand);background:#dcfce7}.pill.amber{background:var(--warn-bg);color:var(--warn)}.pill.red{color:var(--danger);background:#fee2e2}.muted{color:var(--muted);font-size:12px}.right{text-align:right}.mt{margin-top:14px}.detail-overlay{z-index:50;background:#00000059;justify-content:flex-end;display:flex;position:fixed;inset:0}.detail-panel{background:#fff;width:480px;max-width:92vw;height:100%;padding:24px;overflow-y:auto}@media (width<=860px){.sidebar{width:64px}.sidebar .brand{display:none}.nav-item{text-align:center;padding:14px 0;font-size:18px}.nav-item span.label{display:none}.main{margin-left:64px;padding:16px}.grid2{grid-template-columns:1fr}}