:root {
  --background: oklch(100% 0 0);
  --foreground: oklch(14.5% 0 0);
  --border: oklch(92.2% 0 0);
  --input: oklch(92.2% 0 0);
  --primary: oklch(20.5% 0 0);
  --primary-foreground: oklch(98.5% 0 0);
  --secondary: oklch(97% 0 0);
  --secondary-foreground: oklch(20.5% 0 0);
  --muted: oklch(97% 0 0);
  --muted-foreground: oklch(55.6% 0 0);
  --accent: oklch(97% 0 0);
  --accent-foreground: oklch(20.5% 0 0);
  --success: oklch(72% 0.19 150);
  --success-bg: oklch(72% 0.19 150 / 0.12);
  --destructive: oklch(57.7% 0.245 27.325);
  --destructive-bg: oklch(57.7% 0.245 27.325 / 0.10);
  --warning: oklch(77% 0.16 70);
  --warning-bg: oklch(77% 0.16 70 / 0.12);
  --info: oklch(62% 0.19 260);
  --radius: 0.625rem;
}

html[data-theme="dark"], html:not([data-theme]) {
  --background: oklch(14.5% 0 0);
  --foreground: oklch(98.5% 0 0);
  --border: oklch(100% 0 0 / 10%);
  --input: oklch(100% 0 0 / 15%);
  --primary: oklch(92.2% 0 0);
  --primary-foreground: oklch(20.5% 0 0);
  --secondary: oklch(26.9% 0 0);
  --secondary-foreground: oklch(98.5% 0 0);
  --muted: oklch(26.9% 0 0);
  --muted-foreground: oklch(70.8% 0 0);
  --accent: oklch(26.9% 0 0);
  --accent-foreground: oklch(98.5% 0 0);
  --destructive: oklch(70.4% 0.191 22.216);
  --destructive-bg: oklch(70.4% 0.191 22.216 / 0.12);
}

@media (prefers-color-scheme: light) {
  html:not([data-theme="dark"]) {
    --background: oklch(100% 0 0);
    --foreground: oklch(14.5% 0 0);
    --border: oklch(92.2% 0 0);
    --input: oklch(92.2% 0 0);
    --primary: oklch(20.5% 0 0);
    --primary-foreground: oklch(98.5% 0 0);
    --secondary: oklch(97% 0 0);
    --secondary-foreground: oklch(20.5% 0 0);
    --muted: oklch(97% 0 0);
    --muted-foreground: oklch(55.6% 0 0);
    --accent: oklch(97% 0 0);
    --accent-foreground: oklch(20.5% 0 0);
    --destructive: oklch(57.7% 0.245 27.325);
    --destructive-bg: oklch(57.7% 0.245 27.325 / 0.10);
  }
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { color-scheme: light dark; }
body {
  font-family: 'Geist', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  background: var(--background);
  color: var(--foreground);
  -webkit-font-smoothing: antialiased;
  letter-spacing: -0.005em;
  min-height: 100dvh;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; border: none; background: none; cursor: pointer; }
h1, h2, h3 { font-weight: 600; line-height: 1.15; letter-spacing: -0.02em; }
::selection { background: var(--accent); color: var(--accent-foreground); }
.muted { color: var(--muted-foreground); font-size: 12px; }

.container { width: 100%; max-width: 1080px; margin-inline: auto; padding-inline: clamp(16px, 4vw, 32px); }

/* Topbar */
.topbar { border-bottom: 1px solid var(--border); background: var(--background); }
.topbar-row { display: flex; align-items: center; justify-content: space-between; height: 56px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 15px; color: var(--foreground); }
.brand-dot { color: var(--success); margin-inline: 1px; }
.brand-status { color: var(--muted-foreground); font-weight: 500; }

.theme-toggle {
  width: 32px; height: 32px; border-radius: var(--radius); display: inline-flex;
  align-items: center; justify-content: center; color: var(--muted-foreground);
  transition: background-color 0.15s, color 0.15s;
}
.theme-toggle:hover { background: var(--secondary); color: var(--foreground); }
.theme-toggle .i-sun { display: none; }
.theme-toggle .i-moon { display: inline; }
html[data-theme="dark"] .theme-toggle .i-sun { display: inline; }
html[data-theme="dark"] .theme-toggle .i-moon { display: none; }
@media (prefers-color-scheme: light) {
  html:not([data-theme="dark"]) .theme-toggle .i-sun { display: none; }
  html:not([data-theme="dark"]) .theme-toggle .i-moon { display: inline; }
}

/* Main */
.main { padding-block: clamp(28px, 5vh, 56px) 64px; }

/* Overview banner */
.overview-card {
  display: flex; align-items: center; gap: 16px;
  background: var(--background);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 22px;
  margin-bottom: 32px;
  transition: border-color .3s;
}
.overview-card.ok { border-color: color-mix(in oklch, var(--success) 35%, var(--border)); background: linear-gradient(180deg, var(--success-bg) 0%, var(--background) 100%); }
.overview-card.warn { border-color: color-mix(in oklch, var(--warning) 35%, var(--border)); background: linear-gradient(180deg, var(--warning-bg) 0%, var(--background) 100%); }
.overview-card.down { border-color: color-mix(in oklch, var(--destructive) 35%, var(--border)); background: linear-gradient(180deg, var(--destructive-bg) 0%, var(--background) 100%); }
.overview-card.maintenance { border-color: color-mix(in oklch, var(--info) 35%, var(--border)); background: linear-gradient(180deg, color-mix(in oklch, var(--info) 12%, transparent) 0%, var(--background) 100%); }
.overview-card h1 { font-size: clamp(18px, 2.6vw, 22px); margin-bottom: 4px; }
.overview-card p { color: var(--muted-foreground); font-size: 13px; }
.overview-card .dot {
  width: 12px; height: 12px; border-radius: 50%; flex-shrink: 0;
  background: var(--muted-foreground);
}
.overview-card.ok .dot { background: var(--success); box-shadow: 0 0 0 4px var(--success-bg); animation: pulse 2.4s ease-in-out infinite; }
.overview-card.warn .dot { background: var(--warning); box-shadow: 0 0 0 4px var(--warning-bg); }
.overview-card.down .dot { background: var(--destructive); box-shadow: 0 0 0 4px var(--destructive-bg); }
.overview-card.maintenance .dot { background: var(--info); box-shadow: 0 0 0 4px color-mix(in oklch, var(--info) 12%, transparent); }
.overview-text { flex: 1; min-width: 0; }
.overview-meta { color: var(--muted-foreground); font-size: 12px; font-family: 'Geist Mono', ui-monospace, monospace; text-align: right; }
@keyframes pulse { 0%, 100% { box-shadow: 0 0 0 4px var(--success-bg); } 50% { box-shadow: 0 0 0 8px color-mix(in oklch, var(--success) 8%, transparent); } }

/* Groups */
.group { margin-bottom: 28px; }
.group-title { font-size: 11px; color: var(--muted-foreground); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 10px; font-weight: 600; }

.service-list { display: flex; flex-direction: column; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; background: var(--background); }
.service {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 18px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  transition: background-color 0.12s;
}
.service:last-child { border-bottom: none; }
.service:hover { background: var(--secondary); }

.service-left { display: flex; align-items: center; gap: 12px; min-width: 0; }
.service-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; background: var(--muted-foreground); }
.service.up .service-dot { background: var(--success); }
.service.down .service-dot { background: var(--destructive); animation: blink 1.4s ease-in-out infinite; }
.service.degraded .service-dot { background: var(--warning); }
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }

.service-name { font-weight: 500; font-size: 14px; color: var(--foreground); min-width: 0; }
.service-url { font-size: 11px; color: var(--muted-foreground); font-family: 'Geist Mono', ui-monospace, monospace; margin-top: 2px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.bar-track {
  display: flex; gap: 2px;
  width: 320px;
}
@media (max-width: 720px) { .bar-track { display: none; } }
.bar {
  flex: 1; height: 24px; border-radius: 2px; background: var(--secondary);
  transition: opacity .15s;
}
.bar.up { background: var(--success); opacity: 0.92; }
.bar.down { background: var(--destructive); opacity: 0.92; }
.bar.partial { background: var(--warning); opacity: 0.92; }
.bar.empty { background: var(--muted); opacity: 0.4; }
.bar:hover { opacity: 1; }

.service-meta {
  text-align: right; font-variant-numeric: tabular-nums;
  display: flex; flex-direction: column; gap: 2px;
  min-width: 80px;
}
.service-meta-pct { font-size: 13px; font-weight: 500; color: var(--foreground); }
.service-meta-pct.degraded { color: var(--warning); }
.service-meta-pct.down { color: var(--destructive); }
.service-meta-time { font-size: 11px; color: var(--muted-foreground); font-family: 'Geist Mono', ui-monospace, monospace; }

@media (max-width: 540px) {
  .service { grid-template-columns: 1fr auto; gap: 12px; padding: 12px 14px; }
  .service-name { font-size: 13px; }
  .service-meta { min-width: 0; }
}

/* Footer */
.footer { border-top: 1px solid var(--border); padding-block: 18px; margin-top: 40px; }
.footer-row { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }

/* Loading skeleton */
.overview-card.loading .dot { animation: skeleton 1.4s ease-in-out infinite; }
@keyframes skeleton { 0%, 100% { opacity: 0.5; } 50% { opacity: 1; } }