*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #212121;
  --surface: #2a2a2a;
  --border: #3a3a3a;
  --text: #ededed;
  --muted: #a3a3a3;
  --green: #4ade80;
  --green-dim: rgba(74, 222, 128, 0.15);
  --red: #f87171;
  --red-dim: rgba(248, 113, 113, 0.15);
  --yellow: #fbbf24;
}

body {
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  padding: 2rem;
}

.container {
  max-width: 720px;
  margin: 0 auto;
}

/* Header */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.875rem;
}

.back-link {
  font-size: 1rem;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s;
}
.back-link:hover { color: var(--text); }

.logo-icon {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 50%;
  background: linear-gradient(135deg, #525252, #737373);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

h1 {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
}

.subtitle {
  font-size: 0.75rem;
  color: var(--muted);
}

.meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.meta-text {
  font-size: 0.75rem;
  color: var(--muted);
}

.status-pill {
  font-size: 0.6875rem;
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
}

.status-pill.ok {
  background: var(--green-dim);
  color: var(--green);
  border: 1px solid rgba(74, 222, 128, 0.25);
}

.status-pill.down {
  background: var(--red-dim);
  color: var(--red);
  border: 1px solid rgba(248, 113, 113, 0.25);
}

/* Period tabs */
.period-tabs {
  display: flex;
  gap: 0.375rem;
  margin-bottom: 0.875rem;
}

.period-tab {
  padding: 0.375rem 0.875rem;
  border-radius: 0.5rem;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
}

.period-tab:hover {
  border-color: #555;
  color: var(--text);
}

.period-tab.active {
  background: var(--surface);
  border-color: #555;
  color: var(--text);
}

/* Services */
.services {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.service-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1.25rem;
}

.service-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.875rem;
}

.service-name {
  font-size: 0.9375rem;
  font-weight: 600;
  color: #fff;
}

.service-response {
  font-size: 0.6875rem;
  color: var(--muted);
  font-family: 'SF Mono', 'Fira Code', monospace;
}

/* Checks row */
.checks {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.875rem;
}

.check {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  border-radius: 0.5rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
}

.check-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  flex-shrink: 0;
}

.check-dot.ok { background: var(--green); box-shadow: 0 0 6px var(--green); }
.check-dot.down { background: var(--red); box-shadow: 0 0 6px var(--red); }
.check-dot.pending { background: #525252; }

.check-label {
  font-size: 0.75rem;
  color: var(--muted);
}

.check-time {
  font-size: 0.6875rem;
  color: var(--muted);
  font-family: 'SF Mono', 'Fira Code', monospace;
  margin-left: auto;
}

/* Uptime bar */
.uptime-row {
  display: flex;
  align-items: center;
  gap: 0.625rem;
}

.uptime-label {
  font-size: 0.6875rem;
  color: var(--muted);
  white-space: nowrap;
  min-width: 3rem;
}

.uptime-bar {
  flex: 1;
  display: flex;
  gap: 1px;
  height: 1.25rem;
  border-radius: 0.25rem;
  overflow: hidden;
}

.uptime-tick {
  flex: 1;
  min-width: 1px;
  border-radius: 1px;
}

.uptime-tick.ok { background: var(--green); opacity: 0.6; }
.uptime-tick.down { background: var(--red); opacity: 0.8; }
.uptime-tick.empty { background: #333; }

.uptime-pct {
  font-size: 0.75rem;
  font-weight: 600;
  min-width: 3.5rem;
  text-align: right;
  font-family: 'SF Mono', 'Fira Code', monospace;
}

.uptime-pct.good { color: var(--green); }
.uptime-pct.warn { color: var(--yellow); }
.uptime-pct.bad { color: var(--red); }

/* Loading */
.loading {
  text-align: center;
  padding: 3rem;
  color: var(--muted);
  font-size: 0.875rem;
}

@media (max-width: 480px) {
  body { padding: 1rem; }
  .checks { flex-direction: column; }
}