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

:root {
  --blue: #2563eb;
  --blue-dark: #1d4ed8;
  --blue-light: #eff6ff;
  --text: #0f172a;
  --text-2: #475569;
  --text-3: #94a3b8;
  --border: #e2e8f0;
  --bg: #f8fafc;
  --surface: #ffffff;
  --radius: 12px;
  --max-width: 720px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--text-2);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  text-decoration: underline;
}

/* ── Header ── */
.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px;
}

.site-header__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
}

.brand:hover {
  text-decoration: none;
}

.brand__icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--blue), var(--blue-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 800;
  font-size: 14px;
  flex-shrink: 0;
}

.brand__name {
  font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
  font-weight: 800;
  font-size: 20px;
  color: var(--text);
  letter-spacing: -0.3px;
}

.brand__name span {
  color: var(--blue);
}

.header-link {
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
}

/* ── Main ── */
.main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 40px 24px 64px;
}

.hero {
  margin-bottom: 36px;
}

.hero h1 {
  font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
  font-size: clamp(28px, 5vw, 36px);
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.5px;
  line-height: 1.2;
  margin-bottom: 12px;
}

.hero__meta {
  font-size: 14px;
  color: var(--text-3);
}

.hero__intro {
  margin-top: 16px;
  font-size: 17px;
  color: var(--text-2);
  line-height: 1.7;
}

/* ── Content card ── */
.content {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 36px;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.06);
}

@media (max-width: 600px) {
  .content {
    padding: 24px 20px;
  }
}

.content section + section {
  margin-top: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.content h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
  letter-spacing: -0.2px;
}

.content p {
  margin-bottom: 12px;
}

.content p:last-child {
  margin-bottom: 0;
}

.content ul {
  margin: 8px 0 12px 20px;
}

.content li {
  margin-bottom: 6px;
}

.content li::marker {
  color: var(--blue);
}

.highlight-box {
  background: var(--blue-light);
  border: 1px solid #bfdbfe;
  border-radius: 8px;
  padding: 16px 18px;
  margin: 16px 0;
  font-size: 15px;
}

.highlight-box strong {
  color: var(--blue-dark);
}

.permission-table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
  font-size: 14px;
}

.permission-table th,
.permission-table td {
  text-align: left;
  padding: 10px 12px;
  border: 1px solid var(--border);
  vertical-align: top;
}

.permission-table th {
  background: var(--bg);
  font-weight: 600;
  color: var(--text);
}

.permission-table code {
  font-size: 13px;
  background: var(--bg);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--blue-dark);
}

/* ── Footer ── */
.site-footer {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px 48px;
  text-align: center;
  font-size: 13px;
  color: var(--text-3);
}

.site-footer a {
  color: var(--text-2);
  font-weight: 500;
}