:root {
  --bg: #08101d;
  --surface: #101a2a;
  --surface-2: #142135;
  --border: #253650;
  --text: #f2f6fb;
  --muted: #8fa2ba;
  --accent: #6ee7c7;
  --accent-2: #61a9ff;
  --danger: #ff7a8a;
  --warning: #f5c66b;
  --radius: 16px;
  --shadow: 0 18px 50px rgba(0, 0, 0, .25);
}

* { box-sizing: border-box; }
html { background: var(--bg); color: var(--text); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
body { margin: 0; min-height: 100vh; background: radial-gradient(circle at 80% -20%, #173656 0, transparent 36rem), var(--bg); }
a { color: inherit; }
button, input { font: inherit; }
button { cursor: pointer; }

.topbar { height: 76px; padding: 0 clamp(20px, 4vw, 64px); border-bottom: 1px solid rgba(143, 162, 186, .18); display: flex; align-items: center; justify-content: space-between; backdrop-filter: blur(20px); background: rgba(8, 16, 29, .78); position: sticky; top: 0; z-index: 20; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.brand-mark { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 12px; color: #07131d; font-weight: 900; background: linear-gradient(135deg, var(--accent), #8cf4ff); box-shadow: 0 0 28px rgba(110, 231, 199, .2); }
.brand strong, .brand small { display: block; }
.brand small { color: var(--muted); font-size: 11px; margin-top: 2px; }
nav { display: flex; align-items: center; gap: 24px; }
nav a, .nav-button { color: var(--muted); text-decoration: none; background: none; border: 0; padding: 8px 0; font-size: 14px; }
nav a:hover, .nav-button:hover { color: var(--text); }
nav form { margin: 0; }

.shell { width: min(1440px, calc(100% - 40px)); margin: 0 auto; padding: 46px 0 64px; }
.page-heading { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 24px; }
h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 0; font-size: clamp(30px, 4vw, 48px); letter-spacing: -.035em; }
h2 { font-size: 19px; margin-bottom: 0; letter-spacing: -.015em; }
.eyebrow { color: var(--accent); font-size: 11px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 8px; }
.muted, .range-label, .legend-note { color: var(--muted); }
.range-label, .legend-note { font-size: 13px; }
.text-link { color: var(--accent); font-size: 14px; text-decoration: none; }

.filters { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px; padding: 13px; margin-bottom: 24px; background: rgba(16, 26, 42, .84); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
.filters.compact { justify-content: flex-end; }
.presets { display: flex; gap: 4px; }
.filters button, .pager button { color: var(--muted); background: transparent; border: 1px solid transparent; border-radius: 9px; padding: 8px 11px; }
.filters button:hover, .filters button.active, .pager button:hover { color: var(--text); background: var(--surface-2); border-color: var(--border); }
.custom-dates, .toggles { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.custom-dates label { color: var(--muted); font-size: 12px; }
input { color: var(--text); background: #0b1422; border: 1px solid var(--border); border-radius: 9px; padding: 8px 10px; }
.switch { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 13px; cursor: pointer; }
.switch input { appearance: none; position: relative; width: 34px; height: 20px; padding: 2px; border: 0; border-radius: 999px; background: #27364a; transition: .2s; }
.switch input::after { content: ""; display: block; width: 16px; height: 16px; border-radius: 50%; background: #899bb1; transition: .2s; }
.switch input:checked { background: rgba(110, 231, 199, .25); }
.switch input:checked::after { transform: translateX(14px); background: var(--accent); }

.site-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; margin-bottom: 20px; }
.site-card, .metric-card, .panel { background: linear-gradient(145deg, rgba(20, 33, 53, .98), rgba(14, 24, 39, .98)); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
.site-card { padding: 20px; text-decoration: none; min-height: 148px; transition: transform .18s, border-color .18s; }
.site-card:hover { transform: translateY(-2px); border-color: #3d587b; }
.site-name { color: var(--muted); font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.site-value { display: block; font-size: 30px; font-weight: 750; letter-spacing: -.04em; margin: 18px 0 4px; }
.site-meta { color: var(--muted); font-size: 12px; display: flex; justify-content: space-between; gap: 8px; }
.change-up { color: var(--accent); }
.change-down { color: var(--danger); }
.panel { padding: 22px; margin-bottom: 18px; min-width: 0; }
.panel-heading { display: flex; justify-content: space-between; align-items: center; gap: 18px; margin-bottom: 20px; }
.chart-wrap { position: relative; height: 330px; }
.chart-wrap.small { height: 250px; }
.metric-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin: 18px 0; }
.metric-card { padding: 20px; }
.metric-card .label { color: var(--muted); font-size: 12px; }
.metric-card strong { display: block; margin-top: 10px; font-size: 25px; }
.detail-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.detail-grid .panel { margin: 0; }
.span-two { grid-column: 1 / -1; }
.pager { display: flex; gap: 4px; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { color: var(--muted); font-size: 10px; letter-spacing: .1em; text-transform: uppercase; text-align: left; }
th, td { padding: 11px 8px; border-bottom: 1px solid rgba(143, 162, 186, .12); }
th:last-child, td:last-child { text-align: right; }
td:first-child { max-width: 480px; overflow-wrap: anywhere; }
.empty { color: var(--muted); text-align: center !important; padding: 24px; }
.alert { background: rgba(255, 122, 138, .12); border: 1px solid rgba(255, 122, 138, .35); color: #ffc2ca; border-radius: 12px; padding: 12px 14px; margin-bottom: 16px; }
.hidden { display: none; }
.pulse { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 6px rgba(110, 231, 199, .12); margin-right: 6px; }
.status-badge { color: var(--muted); border: 1px solid var(--border); border-radius: 999px; padding: 7px 12px; font-size: 12px; }
.status-badge.ok { color: var(--accent); border-color: rgba(110, 231, 199, .4); }
.status-badge.degraded { color: var(--warning); border-color: rgba(245, 198, 107, .4); }
footer { color: #60748e; text-align: center; padding: 0 20px 40px; font-size: 11px; }

.login-page { display: grid; place-items: center; padding: 24px; }
.login-card { width: min(420px, 100%); padding: 38px; background: rgba(16, 26, 42, .96); border: 1px solid var(--border); border-radius: 22px; box-shadow: var(--shadow); }
.login-mark { margin-bottom: 32px; }
.login-card h1 { font-size: 36px; margin-bottom: 10px; }
.login-form { display: grid; gap: 9px; margin-top: 26px; }
.login-form label { color: var(--muted); font-size: 12px; margin-top: 7px; }
.login-form input { padding: 12px; }
.primary { color: #07131d; background: var(--accent); border: 0; border-radius: 10px; padding: 12px; font-weight: 800; margin-top: 12px; }

@media (max-width: 800px) {
  .topbar { height: auto; padding: 14px 20px; align-items: flex-start; }
  .brand small { display: none; }
  nav { gap: 14px; flex-wrap: wrap; justify-content: flex-end; }
  .shell { width: min(100% - 24px, 1440px); padding-top: 30px; }
  .filters { align-items: flex-start; }
  .custom-dates { width: 100%; }
  .custom-dates label { flex: 1; }
  .custom-dates input { width: 100%; display: block; margin-top: 4px; }
  .metric-grid, .detail-grid { grid-template-columns: 1fr 1fr; }
  .detail-grid > .panel { grid-column: 1 / -1; }
}

@media (max-width: 520px) {
  .brand span:last-child { display: none; }
  nav { gap: 10px; }
  .page-heading { align-items: flex-start; flex-direction: column; }
  .presets { width: 100%; overflow-x: auto; }
  .metric-grid { grid-template-columns: 1fr; }
  .panel { padding: 16px; }
  .chart-wrap { height: 280px; }
}