:root {
  --bg: #0f172a;
  --panel: #1e293b;
  --border: #334155;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --danger: #ef4444;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
}

header {
  margin-bottom: 1.5rem;
}

h1 {
  font-size: 1.9rem;
  margin: 0 0 0.5rem;
}

h2 {
  font-size: 1.05rem;
  margin: 0 0 0.75rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.subtitle {
  color: var(--muted);
  max-width: 640px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.25rem;
}

.card.error-card {
  border-color: var(--danger);
}

dl {
  margin: 0;
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.4rem 1rem;
}

dt {
  color: var(--muted);
  font-weight: 600;
}

dd {
  margin: 0;
  word-break: break-all;
}

code {
  font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.9em;
  background: rgba(255, 255, 255, 0.06);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}

.token-box {
  background: #0b1120;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-all;
  font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.85rem;
  color: #a5f3fc;
  margin: 0;
}

.actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin: 1.25rem 0;
}

.btn {
  display: inline-block;
  padding: 0.6rem 1.2rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: background 0.15s ease;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-hover);
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--muted);
}

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

footer {
  margin-top: 2rem;
  color: var(--muted);
  font-size: 0.85rem;
}

summary {
  cursor: pointer;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 1.05rem;
}

details[open] summary {
  margin-bottom: 0.75rem;
}