:root {
  --bg: #0f1419;
  --surface: #1a2332;
  --text: #e7ecf3;
  --muted: #9aa8bc;
  --accent: #5b9fd4;
  --accent-hover: #7ab3de;
  --error: #f07178;
  --border: #2a3548;
  --radius: 10px;
  font-family: "Segoe UI", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

a {
  color: var(--accent);
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

.brand {
  font-weight: 700;
  font-size: 1.1rem;
  text-decoration: none;
  color: var(--text);
}

.site-header nav {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.site-header nav a {
  text-decoration: none;
}

.site-main {
  max-width: 960px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}

.hero h1 {
  font-size: 2.2rem;
  margin-bottom: 0.5rem;
}

.lead {
  font-size: 1.15rem;
  color: var(--muted);
}

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

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

.notice {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
}

.button {
  display: inline-block;
  padding: 0.55rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
  cursor: pointer;
  font-size: 1rem;
}

.button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #0b1118;
}

.button:hover {
  filter: brightness(1.08);
}

.button.block {
  display: block;
  text-align: center;
  margin-bottom: 1rem;
}

.button.small {
  font-size: 0.85rem;
  padding: 0.35rem 0.65rem;
}

.link-button {
  background: none;
  border: none;
  color: var(--accent);
  cursor: pointer;
  font: inherit;
  padding: 0;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1rem 0;
}

.stack label {
  display: block;
  margin-bottom: 0.75rem;
}

.stack input,
.stack textarea {
  width: 100%;
  margin-top: 0.25rem;
  padding: 0.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: #0b1018;
  color: var(--text);
}

.inline {
  display: inline;
}

.narrow {
  max-width: 420px;
}

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

.grid.two {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th,
.data-table td {
  text-align: left;
  padding: 0.6rem 0.5rem;
  border-bottom: 1px solid var(--border);
}

.badge {
  display: inline-block;
  font-size: 0.8rem;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  background: #243044;
}

.meta {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.35rem 1rem;
}

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

.code {
  background: #0b1018;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  overflow-x: auto;
  font-size: 0.85rem;
  white-space: pre-wrap;
}

.post-list {
  list-style: none;
  padding: 0;
}