:root{color-scheme:light;--bg:#f4f6f8;--panel:#ffffff;--text:#172033;--muted:#70798a;--line:#dfe4ea;--accent:#ff6a00;--accent-soft:#fff2e8;--good:#0f9f6e;--danger:#c92a2a;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}button,input,select{font:inherit}button{border:0;border-radius:6px;padding:10px 14px;background:var(--accent);color:white;cursor:pointer}button:disabled{opacity:.55;cursor:not-allowed}input,select{border:1px solid var(--line);border-radius:6px;padding:10px 12px;background:white;min-width:0}a{color:inherit;text-decoration:none}h1,h2,p{margin:0}h1{font-size:26px}h2{font-size:18px}table{width:100%;border-collapse:collapse;font-size:14px}td,th{border-bottom:1px solid #edf0f3;padding:12px;text-align:left;vertical-align:top}th{color:var(--muted);font-weight:700;background:#fafbfc}.login-shell{min-height:100vh;display:grid;place-items:center;padding:24px;background:linear-gradient(135deg,#f7fafc,#eef3f6)}.login-panel{width:min(440px,100%);display:grid;gap:18px;background:white;padding:30px;border-radius:8px;box-shadow:0 18px 50px rgba(21,30,46,.12)}.login-panel label{display:grid;gap:8px;color:#3d4656;font-weight:700}.eyebrow{color:var(--accent);text-transform:uppercase;letter-spacing:0;font-size:12px;font-weight:800}.muted{color:var(--muted);margin-top:6px}.shell{min-height:100vh;display:grid;grid-template-columns:236px minmax(0,1fr)}.sidebar{background:#151b28;color:white;padding:22px;display:flex;flex-direction:column;gap:28px;position:sticky;top:0;height:100vh}.brand{font-size:22px;font-weight:800}.sidebar .muted{color:#9aa4b5}.sidebar nav{display:grid;gap:8px}.sidebar a,.sidebar button{text-align:left;border-radius:6px;padding:11px 12px;background:transparent;color:#cbd3df}.sidebar a.active{background:rgba(255,255,255,.1);color:white}.ghost{background:white;color:#3f4858;border:1px solid var(--line)}.sidebar .ghost{margin-top:auto;background:rgba(255,255,255,.08);color:white;border-color:rgba(255,255,255,.16)}.workspace{padding:24px;display:grid;gap:16px;align-content:start}.metric,.notice,.panel,.topbar{background:var(--panel);border:1px solid #e7ebef;border-radius:8px}.topbar{padding:20px;display:flex;justify-content:space-between;gap:16px;align-items:center}.inline-form,.panel-head,.toolbar-mini,.topbar-actions{display:flex;gap:10px;align-items:center}.panel-head{justify-content:space-between;margin-bottom:16px}.notice{padding:12px 14px;color:#8a4b00;background:#fff9ed}.notice.error{color:var(--danger);background:#fff1f1}.segment{display:inline-flex;width:fit-content;border:1px solid var(--line);border-radius:6px;overflow:hidden;background:white}.segment button{border-radius:0;background:white;color:#566071;border-right:1px solid var(--line)}.segment button:last-child{border-right:0}.segment button.active{color:var(--accent);background:var(--accent-soft)}.metric-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:12px}.metric{padding:18px;min-height:112px}.metric span{display:block;color:var(--muted);font-weight:700;margin-bottom:12px}.metric strong{font-size:clamp(22px,2vw,34px);line-height:1.1;overflow-wrap:anywhere}.panel{padding:18px}.bar-row,.chart{display:grid;gap:12px}.bar-row{grid-template-columns:56px minmax(0,1fr) 180px;align-items:center}.bar-row span{color:var(--muted)}.bar-row strong{font-size:13px;color:#3c4656;text-align:right}.bar-track{height:12px;border-radius:999px;background:#eef1f5;overflow:hidden}.bar-track i{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--accent),#ffb35f)}.empty{padding:26px;text-align:center;color:var(--muted);background:#fafbfc;border:1px dashed var(--line);border-radius:8px}.table-wrap{overflow-x:auto}.inline-form{min-width:min(460px,100%)}.inline-form input{flex:1 1}.admin-grid{gap:16px}.admin-grid,.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.form-grid{gap:10px;margin-top:14px}.form-grid button{grid-column:1/-1}.assignment{display:grid;gap:14px}.check-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.check-list label{display:flex;gap:8px;align-items:center;padding:10px;border:1px solid var(--line);border-radius:6px;background:#fbfcfd}.browser-shot{width:100%;aspect-ratio:16/10;object-fit:contain;background:#111;border-radius:8px;cursor:crosshair}@media (max-width:1180px){.metric-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.admin-grid{grid-template-columns:1fr}}@media (max-width:820px){.shell{grid-template-columns:1fr}.sidebar{position:static;height:auto}.panel-head,.topbar{align-items:stretch;flex-direction:column}.check-list,.form-grid,.metric-grid{grid-template-columns:1fr}.bar-row{grid-template-columns:48px 1fr}.bar-row strong{grid-column:2;text-align:left}}