:root {
  --bg: #0f172a;
  --bg-soft: #1e293b;
  --bg-card: #1e293b;
  --border: #334155;
  --text: #e2e8f0;
  --text-dim: #94a3b8;
  --accent: #06b6d4;
  --accent-warm: #f97316;
  --success: #22c55e;
  --danger: #ef4444;
  --warn: #eab308;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
}

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

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

body {
  display: flex;
  flex-direction: column;
  padding: 1rem;
  padding-top: max(1rem, env(safe-area-inset-top));
  padding-bottom: max(1rem, env(safe-area-inset-bottom));
}

header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 0;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

header img {
  width: 40px;
  height: 40px;
}

header h1 {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

header .subtitle {
  font-size: 0.75rem;
  color: var(--text-dim);
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow);
}

.card h2 {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  margin-bottom: 0.75rem;
}

.status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
}

.status .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--text-dim);
  flex-shrink: 0;
}

.status.ok .dot { background: var(--success); box-shadow: 0 0 8px var(--success); }
.status.warn .dot { background: var(--warn); box-shadow: 0 0 8px var(--warn); }
.status.err .dot { background: var(--danger); box-shadow: 0 0 8px var(--danger); }

.request {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.request .row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
}

.request .label {
  color: var(--text-dim);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.request .value {
  font-family: ui-monospace, "SFMono-Regular", Menlo, monospace;
  font-size: 0.8rem;
  word-break: break-all;
  text-align: right;
  color: var(--accent);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  border: none;
  border-radius: var(--radius);
  background: var(--bg-soft);
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  width: 100%;
  transition: transform 0.1s, background 0.15s;
  font-family: inherit;
}

.btn:hover { background: #2a3a52; }
.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-warm));
  color: #0f172a;
  font-weight: 600;
}

.btn-primary:hover { filter: brightness(1.1); }

.btn-danger {
  background: var(--danger);
  color: white;
}

.btn-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.empty {
  text-align: center;
  color: var(--text-dim);
  padding: 2rem 1rem;
  font-size: 0.9rem;
}

.empty .icon {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
  opacity: 0.5;
}

.toast {
  position: fixed;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%) translateY(200%);
  background: var(--bg-soft);
  border: 1px solid var(--border);
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  font-size: 0.875rem;
  transition: transform 0.3s ease;
  z-index: 100;
  max-width: calc(100% - 2rem);
}

.toast.show { transform: translateX(-50%) translateY(0); }
.toast.success { border-color: var(--success); }
.toast.error { border-color: var(--danger); }

.pulse {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

footer {
  margin-top: auto;
  padding-top: 1rem;
  text-align: center;
  font-size: 0.7rem;
  color: var(--text-dim);
}