:root{color-scheme:light;--bg:#f4f6f8;--card:#fff;--text:#1d2430;--muted:#5f6b7a;--primary:#1f8a70;--secondary:#4c6fff;--danger:#d64550;--border:#dbe1e8}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif}.page-container{max-width:1280px;margin:0 auto;padding:20px}.nav-shell{position:-webkit-sticky;position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 20px;background:#12263a;color:#fff;border-bottom:2px solid #0a1622}.nav-brand{font-weight:700}.nav-links{display:flex;gap:10px}.nav-link{padding:8px 10px;border-radius:8px;color:#d7e2ec;text-decoration:none}.nav-link.active,.nav-link:hover{background:#1e3b58;color:#fff}.page-header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:14px}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));grid-gap:12px;gap:12px;margin-bottom:14px}.stat-card h3{margin:0 0 8px;color:var(--muted);font-size:14px}.stat-card p{margin:0;font-size:24px;font-weight:700}.chart-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:12px;gap:12px;margin-bottom:14px}.chart-card h3{margin-top:0}.split-grid{display:grid;grid-template-columns:1fr 1.4fr;grid-gap:12px;gap:12px}.stack-col{display:flex;flex-direction:column;gap:12px}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:10px;gap:10px}label{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--muted)}button,input,select{font:inherit}input,select{padding:8px 10px}input,select,textarea{border:1px solid var(--border);border-radius:8px;background:#fff;color:var(--text)}textarea{padding:10px;font:inherit;resize:vertical}button{border:none;border-radius:8px;padding:8px 12px;cursor:pointer}.primary-btn{background:var(--primary);color:#fff}.secondary-btn{background:#e8edf5;color:#223}.danger-btn{background:var(--danger);color:#fff}.button-row{display:flex;gap:8px;margin-top:12px}.button-row.wrap{flex-wrap:wrap}.checkbox-row{flex-direction:row;margin-top:8px}.checkbox-row,.inline-row{display:flex;align-items:center;gap:8px}.inline-row{justify-content:space-between;margin-top:10px}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse}td,th{padding:10px 8px;border-bottom:1px solid var(--border);text-align:left;vertical-align:top}th{color:var(--muted);font-size:12px}.center-page{min-height:75vh;display:flex;align-items:center;justify-content:center}.login-card{width:min(420px,92vw)}.login-card h1{margin-top:0}.muted{color:var(--muted)}.error-text{color:var(--danger)}.badge{display:inline-block;border-radius:999px;padding:4px 10px;font-size:12px;font-weight:600}.badge.safe{background:#dbf5ea;color:#116149}.badge.danger{background:#ffe1e4;color:#8c2030}@media (max-width:980px){.chart-grid,.form-grid,.split-grid,.stats-grid{grid-template-columns:1fr}.nav-shell{flex-wrap:wrap}.nav-links{order:3;width:100%;overflow-x:auto}}