:root{--bg:#f4f6fb;--surface:#fff;--text:#0f172a;--muted:#475569;--border:#dbe3ef;--danger:#b42318;--warn:#b54708;--ok:#027a48;--radius:12px}*{box-sizing:border-box}body{margin:0;background:linear-gradient(180deg,#f7f8fc,#eef2f8);color:var(--text);font-family:Source Sans\ 3,Noto Sans SC,sans-serif}a{color:inherit;text-decoration:none}.app-shell{max-width:1200px;margin:0 auto;padding:20px}.top-nav{display:flex;gap:10px;margin-bottom:20px}.nav-link{background:var(--surface);border:1px solid var(--border);padding:10px 14px;border-radius:999px;font-weight:600;color:var(--muted)}.nav-logout-btn{margin-left:auto;border-radius:999px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px}.grid{display:grid;grid-gap:16px;gap:16px}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.table{width:100%;border-collapse:collapse}.table td,.table th{text-align:left;padding:10px;border-bottom:1px solid var(--border);font-size:14px}.badge{display:inline-block;border-radius:999px;padding:4px 10px;font-size:12px;font-weight:700}.badge-normal{color:var(--ok);background:#ecfdf3}.badge-highrisk,.badge-warning{color:var(--warn);background:#fff7ed}.badge-overage,.badge-reset,.badge-resetpending{color:var(--danger);background:#fef3f2}.page-title{margin:0 0 12px;font-size:26px}.page-subtitle{margin:0 0 20px;color:var(--muted)}.empty{padding:20px;text-align:center;color:var(--muted)}button{border:1px solid var(--border);border-radius:10px;background:#fff;padding:8px 12px;font-weight:600;cursor:pointer}button:disabled{cursor:not-allowed;opacity:.7}input,select,textarea{width:100%;border:1px solid var(--border);border-radius:8px;padding:8px;margin-top:4px}input[type=checkbox]{width:auto;margin-left:8px}@media (max-width:960px){.grid-2,.grid-4{grid-template-columns:1fr}.top-nav{flex-wrap:wrap}}.login-page{min-height:80vh;display:grid;place-items:center}.login-card{width:min(420px,92vw)}.auth-error{color:var(--danger);margin-top:8px;font-size:14px}