:root {
  --bg: #0B0D10;
  --surface: #141821;
  --surface2: #1A1F2A;
  --divider: #1F2430;

  --accent: #FF9F1C;
  --accent-pressed: #E88A10;
  --accent-disabled: #7A6A4A;

  --text: #E9EEF5;
  --text2: #A9B1BC;
  --text3: #6E7682;

  --success: #34C759;
  --error: #FF3B30;

  --radius: 16px;
  --shadow: 0 12px 28px rgba(0, 0, 0, .35);
  --maxw: 920px;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  background:
    radial-gradient(1200px 600px at 20% -10%, rgba(255, 159, 28, .14), transparent 55%),
    radial-gradient(900px 500px at 100% 0%, rgba(255, 59, 48, .08), transparent 45%),
    var(--bg);

  color: var(--text);
  line-height: 1.55;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--accent-pressed);
  text-decoration: underline;
}

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 28px 18px 56px;
}

.topbar {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.brand {
  display: flex;
  gap: 10px;
  align-items: center;
  min-width: 0;
}

.logo {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(255, 159, 28, .35), rgba(255, 159, 28, .12));
  border: 1px solid rgba(255, 159, 28, .35);
  box-shadow: 0 10px 18px rgba(0, 0, 0, .25);
}

.brand h1 {
  font-size: 16px;
  margin: 0;
  color: var(--text);
  font-weight: 650;
  letter-spacing: .2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.badges {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.badge {
  font-size: 12px;
  color: var(--text2);
  background: rgba(20, 24, 33, .8);
  border: 1px solid var(--divider);
  padding: 6px 10px;
  border-radius: 999px;
}

.card {
  background: linear-gradient(180deg, rgba(26, 31, 42, .92), rgba(20, 24, 33, .92));
  border: 1px solid var(--divider);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
}

.header {
  margin-bottom: 14px;
}

.header h2 {
  margin: 0 0 6px;
  font-size: 26px;
}

.meta {
  color: var(--text3);
  font-size: 13px;
}

.hr {
  height: 1px;
  background: var(--divider);
  margin: 18px 0;
}

.toc {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin: 8px 0 14px;
}

.toc a {
  font-size: 13px;
  padding: 8px 10px;
  border-radius: 999px;
  background: rgba(11, 13, 16, .35);
  border: 1px solid var(--divider);
}

h3 {
  margin: 18px 0 8px;
  font-size: 18px;
}

p,
li {
  color: var(--text2);
  margin: 10px 0;
}

ul {
  padding-left: 18px;
}

.callout {
  background: rgba(255, 159, 28, .08);
  border: 1px solid rgba(255, 159, 28, .25);
  padding: 12px 14px;
  border-radius: 14px;
  color: var(--text2);
  margin: 14px 0;
}

.footer {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: space-between;
  color: var(--text3);
  font-size: 12px;
}

.small {
  font-size: 12px;
  color: var(--text3);
}

.buttonRow,
.btnRow {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--divider);
  background: rgba(20, 24, 33, .7);
  color: var(--text);
  font-size: 13px;
}

.btn.primary {
  background: rgba(255, 159, 28, .14);
  border-color: rgba(255, 159, 28, .35);
}

.btn:hover {
  filter: brightness(1.07);
}