/* EdgeBench — Global Latency Observatory */

:root {
  --accent: #14b8a6;
  --accent-dim: #0d9488;
  --accent-glow: rgba(20, 184, 166, 0.3);
  --accent-warm: #f59e0b;
  --bg: #09090b;
  --surface: #18181b;
  --surface-2: #1f1f23;
  --border: #27272a;
  --border-subtle: #1f1f23;
  --text: #fafafa;
  --text-muted: #71717a;
  --text-dim: #52525b;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --radius: 8px;
  --radius-lg: 12px;
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  min-height: 100vh;
  line-height: 1.5;
}

/* ── Layout ── */

.app {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px 60px;
}

/* ── Header ── */

header {
  padding: 32px 0 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
  display: flex;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
}

.logo {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.logo span {
  color: var(--text-muted);
  font-weight: 400;
}

.subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 400;
}

.region-badge {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.region-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent-glow);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 6px var(--accent-glow); }
  50% { box-shadow: 0 0 12px var(--accent), 0 0 20px var(--accent-glow); }
}

/* ── Map section ── */

.map-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-bottom: 24px;
  position: relative;
  overflow: hidden;
}

.map-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 120%, rgba(20, 184, 166, 0.05) 0%, transparent 70%);
  pointer-events: none;
}

.map-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  margin-bottom: 12px;
}

#world-map {
  width: 100%;
  height: auto;
  display: block;
}

/* SVG map styles */
.graticule {
  fill: none;
  stroke: #1a1a2a;
  stroke-width: 0.3;
}

.continent {
  fill: #1e1e2e;
  stroke: #2a2a3a;
  stroke-width: 0.5;
}

.region-node {
  fill: var(--accent);
  opacity: 0.7;
  cursor: pointer;
  transition: opacity 0.2s, r 0.2s;
}

.region-node:hover {
  opacity: 1;
}

.region-node.active {
  opacity: 1;
}

.region-pulse {
  fill: none;
  stroke: var(--accent);
  stroke-width: 1;
  animation: pulse-ring 2.5s ease-out infinite;
  transform-box: fill-box;
  transform-origin: center;
}

@keyframes pulse-ring {
  0% { r: 4px; stroke-opacity: 0.8; }
  100% { r: 16px; stroke-opacity: 0; }
}

/* ── Controls ── */

.controls {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 24px;
}

.workload-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 8px 14px;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}

.workload-btn:hover {
  border-color: var(--accent-dim);
  color: var(--text);
}

.workload-btn.selected {
  background: rgba(20, 184, 166, 0.12);
  border-color: var(--accent);
  color: var(--accent);
}

.run-btn {
  margin-left: auto;
  background: var(--accent);
  border: none;
  color: #000;
  padding: 10px 22px;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}

.run-btn:hover:not(:disabled) {
  background: #0d9488;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(20, 184, 166, 0.3);
}

.run-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.run-btn.running {
  animation: btn-pulse 1s ease-in-out infinite;
}

@keyframes btn-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(20, 184, 166, 0.4); }
  50% { box-shadow: 0 0 0 8px rgba(20, 184, 166, 0); }
}

/* ── Results panel ── */

.results-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.results-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

.results-title {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}

.cold-start-badge {
  display: none;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: var(--accent-warm);
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.3);
  padding: 3px 10px;
  border-radius: 99px;
}

.cold-start-badge.visible {
  display: inline-block;
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1px;
  background: var(--border);
  border-bottom: 1px solid var(--border);
}

.stat-cell {
  background: var(--surface);
  padding: 14px 16px;
  text-align: center;
}

.stat-label {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin-bottom: 4px;
}

.stat-value {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
}

.stat-value.empty {
  color: var(--text-dim);
}

/* ── Bar chart ── */

.chart-area {
  padding: 20px;
}

.chart-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin-bottom: 14px;
}

.bars-container {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.bar-row {
  display: flex;
  align-items: center;
  gap: 10px;
  height: 22px;
  opacity: 0;
  transform: translateX(-8px);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.bar-row.visible {
  opacity: 1;
  transform: translateX(0);
}

.bar-index {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-dim);
  width: 20px;
  text-align: right;
  flex-shrink: 0;
}

.bar-track {
  flex: 1;
  height: 10px;
  background: var(--surface-2);
  border-radius: 3px;
  overflow: hidden;
  position: relative;
}

.bar-fill {
  height: 100%;
  border-radius: 3px;
  background: var(--accent);
  width: 0%;
  transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.bar-fill.slow {
  background: var(--accent-warm);
}

.bar-fill.fast {
  background: var(--accent);
}

.bar-ms {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  width: 60px;
  text-align: right;
  flex-shrink: 0;
}

/* ── Previous runs ── */

.prev-runs-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  cursor: pointer;
  font-size: 0.78rem;
  color: var(--text-muted);
  user-select: none;
  transition: color 0.15s;
}

.prev-runs-toggle:hover {
  color: var(--text);
}

.prev-runs-toggle svg {
  transition: transform 0.2s;
}

.prev-runs-toggle.open svg {
  transform: rotate(180deg);
}

.prev-runs-section {
  display: none;
  padding: 0 20px 20px;
  border-top: 1px solid var(--border-subtle);
}

.prev-runs-section.open {
  display: block;
}

.prev-run-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.8rem;
}

.prev-run-item:last-child {
  border-bottom: none;
}

.prev-run-meta {
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.prev-run-stats {
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.no-prev-runs {
  color: var(--text-dim);
  font-size: 0.78rem;
  padding: 16px 0;
  text-align: center;
}

/* ── Empty state ── */

.empty-state {
  text-align: center;
  padding: 48px 20px;
  color: var(--text-dim);
  font-size: 0.85rem;
}

.empty-state .icon {
  font-size: 2rem;
  margin-bottom: 12px;
  opacity: 0.4;
}

/* ── Responsive ── */

@media (max-width: 640px) {
  .stats-row {
    grid-template-columns: repeat(3, 1fr);
  }

  .controls {
    gap: 8px;
  }

  .run-btn {
    width: 100%;
    margin-left: 0;
  }

  header {
    gap: 8px;
  }

  .region-badge {
    margin-left: 0;
    width: 100%;
  }
}