/* brow-use docs — shared site styles */

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

html { scroll-behavior: smooth; }

body {
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  margin: 0;
  padding: 0;
  background: #0d1117;
  color: #c9d1d9;
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a { color: #58a6ff; text-decoration: none; }
a:hover { text-decoration: underline; }

/* ──────────────── Top navigation ──────────────── */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(13, 17, 23, 0.85);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid #21262d;
}

.site-header-inner {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 14px 28px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #e6edf3;
  font-weight: 700;
  font-size: 0.95rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: -0.01em;
}

.brand-mark {
  width: 22px;
  height: 22px;
  border-radius: 5px;
  background: linear-gradient(135deg, #388bfd, #8957e5);
  display: inline-block;
  position: relative;
}
.brand-mark::after {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: 2px;
  background: #0d1117;
}

.site-nav {
  display: flex;
  gap: 4px;
  margin-left: auto;
  font-size: 0.875rem;
}

.site-nav a {
  color: #8b949e;
  padding: 6px 12px;
  border-radius: 6px;
  text-decoration: none;
  transition: background 0.12s, color 0.12s;
}
.site-nav a:hover { color: #e6edf3; background: #161b22; text-decoration: none; }
.site-nav a.active { color: #e6edf3; background: #161b22; }

.site-nav .gh {
  color: #6e7681;
  margin-left: 8px;
  padding-left: 14px;
  border-left: 1px solid #21262d;
  border-radius: 0;
}
.site-nav .gh:hover { background: transparent; color: #e6edf3; }

/* ──────────────── Page layout ──────────────── */

.page {
  max-width: 920px;
  margin: 0 auto;
  padding: 56px 28px 80px;
}
.page-narrow { max-width: 820px; }
.page-wide { max-width: 1080px; }

h1 {
  font-size: 2rem;
  font-weight: 700;
  color: #e6edf3;
  letter-spacing: -0.02em;
  margin: 0 0 6px;
  line-height: 1.2;
}
h2 {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #8b949e;
  margin: 56px 0 18px;
  font-weight: 600;
}
h3 {
  font-size: 1.1rem;
  color: #e6edf3;
  margin: 28px 0 8px;
  font-weight: 600;
}
h4 {
  font-size: 0.95rem;
  color: #c9d1d9;
  margin: 20px 0 4px;
  font-weight: 600;
}

p { margin: 12px 0; color: #c0c7cf; font-size: 0.97rem; }
p strong { color: #e6edf3; font-weight: 600; }

ul, ol { margin: 10px 0; padding-left: 24px; color: #c0c7cf; font-size: 0.97rem; }
li { margin: 6px 0; }
li strong { color: #e6edf3; font-weight: 600; }

.subtitle {
  color: #8b949e;
  font-size: 1.05rem;
  margin: 4px 0 0;
}

.eyebrow {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #58a6ff;
  margin-bottom: 12px;
}

.section-divider {
  border: none;
  border-top: 1px solid #21262d;
  margin: 56px 0;
}

/* ──────────────── Code ──────────────── */

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.875em;
  background: #161b22;
  border: 1px solid #30363d;
  border-radius: 4px;
  padding: 1px 6px;
  color: #d2a8ff;
}
pre {
  background: #0b0f14;
  border: 1px solid #30363d;
  border-radius: 8px;
  padding: 18px 22px;
  overflow-x: auto;
  margin: 16px 0;
  font-size: 0.85rem;
}
pre code {
  background: none;
  border: none;
  padding: 0;
  color: #c9d1d9;
}

/* ──────────────── Hero ──────────────── */

.hero {
  padding: 32px 0 16px;
}
.hero h1 {
  font-size: 2.6rem;
  letter-spacing: -0.025em;
  margin-bottom: 12px;
}
.hero .lead {
  font-size: 1.15rem;
  color: #8b949e;
  max-width: 640px;
  line-height: 1.55;
  margin: 0;
}
.hero-actions {
  display: flex;
  gap: 12px;
  margin-top: 28px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid transparent;
  transition: background 0.12s, border-color 0.12s;
}
.btn-primary { background: #238636; color: #fff; }
.btn-primary:hover { background: #2ea043; text-decoration: none; }
.btn-ghost { background: #161b22; color: #c9d1d9; border-color: #30363d; }
.btn-ghost:hover { background: #1c2128; border-color: #484f58; text-decoration: none; }

/* ──────────────── Cards ──────────────── */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
  margin: 18px 0;
}
.card {
  display: block;
  background: #0f141a;
  border: 1px solid #30363d;
  border-radius: 8px;
  padding: 18px 22px;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s, transform 0.15s;
}
.card:hover {
  border-color: #58a6ff;
  text-decoration: none;
  transform: translateY(-1px);
}
.card-eyebrow {
  font-family: ui-monospace, monospace;
  font-size: 0.72rem;
  color: #58a6ff;
  text-transform: lowercase;
  letter-spacing: 0;
  margin-bottom: 4px;
}
.card-title {
  font-size: 1rem;
  font-weight: 600;
  color: #e6edf3;
  margin: 0 0 6px;
}
.card-desc {
  font-size: 0.86rem;
  color: #8b949e;
  margin: 0;
  line-height: 1.5;
}

/* Numbered feature row */
.feature-row {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  margin: 22px 0;
}
.feature-num {
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: #161b22;
  border: 1px solid #30363d;
  color: #79c0ff;
  font-family: ui-monospace, monospace;
  font-size: 0.8rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}
.feature-body { flex: 1; }
.feature-body h3 { margin: 0 0 4px; font-size: 1rem; }
.feature-body p { margin: 0; font-size: 0.92rem; color: #8b949e; }

/* ──────────────── Callouts ──────────────── */

.callout {
  background: #161b22;
  border: 1px solid #30363d;
  border-left: 3px solid #d29922;
  border-radius: 6px;
  padding: 14px 18px;
  margin: 18px 0;
  font-size: 0.9rem;
  color: #c0c7cf;
}
.callout.info { border-left-color: #388bfd; }
.callout.success { border-left-color: #3fb950; }
.callout.danger { border-left-color: #f85149; }
.callout p:first-child { margin-top: 0; }
.callout p:last-child { margin-bottom: 0; }

/* ──────────────── Tables ──────────────── */

table.spec {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 0.9rem;
}
table.spec th {
  text-align: left;
  padding: 10px 14px;
  background: #161b22;
  color: #8b949e;
  font-weight: 500;
  border-bottom: 1px solid #30363d;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
table.spec td {
  padding: 12px 14px;
  border-bottom: 1px solid #21262d;
  color: #c0c7cf;
  vertical-align: top;
}
table.spec td:first-child {
  font-family: ui-monospace, monospace;
  font-size: 0.85rem;
  color: #d2a8ff;
  white-space: nowrap;
}
.yes { color: #56d364; }
.no { color: #f85149; }
.partial { color: #e3b341; }

/* ──────────────── Layer pills (used in architecture) ──────────────── */

.layer-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid;
}
.layer-1 { background: rgba(56, 139, 253, 0.12); border-color: rgba(56, 139, 253, 0.4); color: #79c0ff; }
.layer-2 { background: rgba(63, 185, 80, 0.12); border-color: rgba(63, 185, 80, 0.4); color: #56d364; }
.layer-3 { background: rgba(210, 153, 34, 0.12); border-color: rgba(210, 153, 34, 0.4); color: #e3b341; }
.layer-4 { background: rgba(137, 87, 229, 0.12); border-color: rgba(137, 87, 229, 0.4); color: #d2a8ff; }

/* ──────────────── Command list ──────────────── */

.cmd-list {
  display: flex;
  flex-direction: column;
  border: 1px solid #21262d;
  border-radius: 8px;
  overflow: hidden;
}
.cmd-row {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 24px;
  padding: 16px 20px;
  background: #0f141a;
  border-bottom: 1px solid #21262d;
  align-items: baseline;
}
.cmd-row:last-child { border-bottom: none; }
.cmd-row:hover { background: #161b22; }
.cmd-name {
  font-family: ui-monospace, monospace;
  font-size: 0.9rem;
  color: #79c0ff;
  font-weight: 600;
}
.cmd-desc {
  font-size: 0.9rem;
  color: #8b949e;
  line-height: 1.55;
}
.cmd-desc strong { color: #c9d1d9; font-weight: 500; }

/* ──────────────── Step diagrams (compact arrow flow) ──────────────── */

.flow {
  display: flex;
  align-items: stretch;
  gap: 0;
  margin: 24px 0;
  flex-wrap: wrap;
}
.flow-step {
  background: #0f141a;
  border: 1px solid #30363d;
  border-radius: 6px;
  padding: 14px 18px;
  flex: 1;
  min-width: 150px;
}
.flow-step .label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #6e7681;
  margin-bottom: 4px;
}
.flow-step .name {
  font-size: 0.95rem;
  color: #e6edf3;
  font-weight: 600;
}
.flow-step .detail {
  font-size: 0.78rem;
  color: #8b949e;
  margin-top: 4px;
}
.flow-arrow {
  display: flex;
  align-items: center;
  padding: 0 8px;
  color: #484f58;
  font-size: 1.4rem;
}

/* ──────────────── Footer ──────────────── */

.site-footer {
  border-top: 1px solid #21262d;
  margin-top: 80px;
  padding: 28px;
  text-align: center;
  color: #6e7681;
  font-size: 0.82rem;
}
.site-footer a { color: #6e7681; }
.site-footer a:hover { color: #c9d1d9; }

/* ──────────────── Responsive ──────────────── */

@media (max-width: 720px) {
  .site-header-inner { gap: 16px; padding: 12px 18px; }
  .site-nav { gap: 0; font-size: 0.82rem; }
  .site-nav a { padding: 5px 9px; }
  .site-nav .gh { display: none; }
  .page { padding: 36px 18px 60px; }
  .hero h1 { font-size: 1.9rem; }
  .hero .lead { font-size: 1rem; }
  .cmd-row { grid-template-columns: 1fr; gap: 6px; }
  .flow-arrow { display: none; }
}