:root {
  --bg: #07131f;
  --bg-accent: #0f273a;
  --panel: rgba(6, 24, 38, 0.76);
  --panel-border: rgba(132, 204, 255, 0.22);
  --text: #eff7ff;
  --muted: #9fbdcf;
  --brand: #3ed0ff;
  --brand-strong: #8af4ff;
  --success: #31d17b;
  --danger: #ff7867;
  --warning: #ffb44d;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  --font-display: "SF Pro Display", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-display);
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(62, 208, 255, 0.2), transparent 30%),
    radial-gradient(circle at top right, rgba(49, 209, 123, 0.12), transparent 28%),
    linear-gradient(140deg, #04101a 0%, #081a2a 48%, #102335 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(138, 244, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(138, 244, 255, 0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.88), transparent);
}

.app-shell {
  width: min(1280px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 32px 0 40px;
}

.hero {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 28px;
}

.eyebrow {
  margin: 0 0 10px;
  font-size: 13px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--brand-strong);
}

h1 {
  margin: 0;
  font-size: clamp(32px, 5vw, 56px);
  line-height: 1.04;
}

.hero-copy {
  max-width: 720px;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 16px;
}

.refresh-button {
  border: 0;
  border-radius: 999px;
  padding: 14px 24px;
  font-size: 15px;
  font-weight: 700;
  color: #00111b;
  cursor: pointer;
  background: linear-gradient(135deg, var(--brand-strong), var(--brand));
  box-shadow: 0 12px 30px rgba(62, 208, 255, 0.3);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.refresh-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 34px rgba(62, 208, 255, 0.4);
}

.dashboard-grid {
  display: grid;
  gap: 22px;
}

.summary-panel {
  display: grid;
  gap: 18px;
}

.summary-panel-primary {
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.summary-card,
.status-panel,
.site-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--panel-border);
  border-radius: 26px;
  background: var(--panel);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.summary-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 122px;
  min-width: 0;
  padding: 18px 22px;
}

.summary-card::after,
.site-card::after {
  content: "";
  position: absolute;
  inset: auto -20% -55% auto;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(62, 208, 255, 0.22), transparent 68%);
}

.summary-label,
.metric-label {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.summary-value {
  display: block;
  min-width: 0;
  margin-top: 10px;
  font-size: clamp(18px, 1.8vw, 28px);
  line-height: 1.04;
  letter-spacing: -0.04em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-variant-numeric: tabular-nums;
}

.total-card .summary-value {
  color: var(--brand-strong);
}

.status-panel {
  padding: 24px;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.panel-head h2 {
  margin: 0;
  font-size: 24px;
}

.last-updated {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.site-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  align-items: start;
}

.stat-site-list {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.site-card {
  min-width: 0;
  align-self: start;
  padding: 20px;
}

.site-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.site-host {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
}

.site-url {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 13px;
  word-break: break-all;
}

.site-status {
  flex-shrink: 0;
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-status.is-success {
  color: #03210f;
  background: rgba(49, 209, 123, 0.9);
}

.site-status.is-error {
  color: #2d0904;
  background: rgba(255, 120, 103, 0.92);
}

.site-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.site-metrics-stats {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.metric-tile {
  min-width: 0;
  padding: 12px 14px;
  border: 1px solid rgba(132, 204, 255, 0.14);
  border-radius: 18px;
  background: rgba(8, 29, 45, 0.55);
}

.metric-value {
  display: block;
  min-width: 0;
  margin-top: 10px;
  font-size: clamp(17px, 1.5vw, 26px);
  line-height: 1.12;
  letter-spacing: -0.03em;
  word-break: break-word;
  overflow-wrap: anywhere;
  font-variant-numeric: tabular-nums;
}

.site-error {
  margin: 12px 0 0;
  color: var(--warning);
  font-size: 13px;
}

.site-error:empty {
  display: none;
}

@media (max-width: 1380px) {
  .summary-panel-primary {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 1080px) {
  .summary-panel-primary {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-list {
    grid-template-columns: 1fr;
  }

  .stat-site-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .app-shell {
    width: min(100vw - 24px, 1280px);
    padding-top: 22px;
  }

  .hero,
  .panel-head,
  .site-card-top {
    flex-direction: column;
    align-items: flex-start;
  }

  .refresh-button {
    width: 100%;
  }

  .summary-panel {
    grid-template-columns: 1fr;
  }

  .summary-card {
    min-height: auto;
  }

  .site-metrics {
    grid-template-columns: 1fr;
  }
}