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

:root {
  --bg: #0b0f1a;
  --surface: #111827;
  --surface-2: #1a2236;
  --border: #1e293b;
  --text: #e2e8f0;
  --muted: #64748b;
  --up: #22c55e;
  --down: #ef4444;
  --paused: #f59e0b;
  --radius: 10px;
}

body {
  font-family: system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* Header */
header {
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  padding: 0 2rem;
  height: 56px;
  display: flex;
  align-items: center;
}

.header-inner {
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--up);
  display: inline-block;
  box-shadow: 0 0 6px var(--up);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.summary {
  display: flex;
  gap: 1rem;
  font-size: 0.85rem;
}

.refresh-indicator {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  color: var(--muted);
}

.refresh-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--up);
  animation: blink 2s ease-in-out infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.2; }
}

.sum-item {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.sum-item.muted { color: var(--muted); }

.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  display: inline-block;
}
.dot-up { background: var(--up); }
.dot-down { background: var(--down); }

/* Main */
main {
  max-width: 900px;
  margin: 2rem auto;
  padding: 0 1.5rem;
}

.monitor-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

/* Card */
.card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  border-left: 3px solid var(--border);
  transition: border-color 0.15s, background 0.15s;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

.card:hover {
  background: var(--surface-2);
}

.card.status-up   { border-left-color: var(--up); }
.card.status-down { border-left-color: var(--down); }
.card.status-paused { border-left-color: var(--paused); }

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.card-left {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.card-name {
  font-weight: 600;
  font-size: 0.95rem;
}

.list-hint {
  font-size: 0.78rem;
  color: var(--muted);
  margin-bottom: 0.75rem;
}

.card-host {
  font-size: 0.78rem;
  color: var(--muted);
  font-family: monospace;
}

.card-host.private {
  color: var(--muted);
  font-style: italic;
  font-family: inherit;
}

/* Badges */
.status-badge {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
}

.status-badge.status-up     { background: rgba(34,197,94,0.15);  color: var(--up); }
.status-badge.status-down   { background: rgba(239,68,68,0.15);  color: var(--down); }
.status-badge.status-paused { background: rgba(245,158,11,0.15); color: var(--paused); }

.type-badge {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--muted);
  background: var(--surface-2);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  border: 1px solid var(--border);
}

/* Sparkline */
.card-spark {
  margin-bottom: 0.75rem;
}

.sparkline {
  display: flex;
  gap: 2px;
  align-items: flex-end;
  height: 28px;
}

.sparkline.empty {
  font-size: 0.75rem;
  color: var(--muted);
  align-items: center;
  height: 28px;
}

.spark-bar {
  flex: 1;
  border-radius: 2px;
  height: 100%;
  cursor: default;
  transition: opacity 0.1s;
}

.spark-bar:hover { opacity: 0.75; }
.bar-up   { background: var(--up); opacity: 0.7; }
.bar-down { background: var(--down); }

/* Footer meta */
.card-footer {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.meta {
  font-size: 0.78rem;
  color: var(--muted);
}

.meta strong {
  color: var(--text);
  font-weight: 600;
}

/* Skeleton */
.skeleton-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.skeleton-card {
  height: 110px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  animation: pulse 1.4s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* Error */
.error {
  color: var(--down);
  padding: 1rem 0;
  font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 600px) {
  header { padding: 0 1rem; }
  main { padding: 0 1rem; margin: 1.25rem auto; }
  .summary { gap: 0.6rem; }
  .card-footer { gap: 0.75rem; }
  .monitor-list { grid-template-columns: 1fr; }
}