:root {
  color-scheme: dark;
  --bg: #0f1116;
  --panel: #1e2127;
  --card: #20242b;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --accent: #3b82f6;
  --border: #2f343d;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Source Serif 4", "Georgia", serif;
  background: linear-gradient(180deg, #0c0e12 0%, var(--bg) 100%);
  color: var(--text);
}

.site-logo {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 0 0 10px;
  gap: 0;
}

.site-logo img {
  display: block;
  transform: scale(0.68);
  transform-origin: top center;
  margin-bottom: -18px;
}

.site-title {
  margin: 0;
  font-size: 34px;
  letter-spacing: 0.3px;
  font-weight: 700;
  font-family: "IBM Plex Mono", monospace;
  text-shadow: 0 8px 18px rgba(0, 0, 0, 0.35);
  line-height: 0.9;
}

.site-title .brand-seal {
  color: #e5e7eb;
}

.site-title .brand-code {
  color: #2f8cff;
}

.container {
  max-width: 780px;
  margin: 3vh auto;
  padding: 24px;
}

.card {
  background: var(--card);
  padding: 18px;
  border-radius: 12px;
  border: 1px solid var(--border);
  display: grid;
  gap: 12px;
}

input, button, select, textarea {
  font-family: "IBM Plex Mono", monospace;
  font-size: 14px;
}

input, select, textarea {
  background: #0f131a;
  color: var(--text);
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
}

button {
  padding: 10px 16px;
  background: var(--accent);
  color: #0b1220;
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

button:hover { opacity: 0.95; }

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

.hidden { display: none; }

a {
  color: #93c5fd;
  text-decoration: none;
}

a:hover { text-decoration: underline; }

.page-subtitle {
  margin-top: 0;
  color: var(--muted);
  font-size: 16px;
  font-weight: 400;
}

.center {
  text-align: center;
}

.btn-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #121826;
  color: #e5e7eb;
  font-family: "IBM Plex Mono", monospace;
  font-size: 14px;
}

.btn-link:hover {
  text-decoration: none;
  background: #0f172a;
}

.tiny-footer {
  margin: 18px auto 28px;
  max-width: 780px;
  padding: 0 24px;
  text-align: center;
  font-size: 14px;
  letter-spacing: normal;
  color: var(--text);
  opacity: 1;
}