/* ================================================================
   murli docs — style.css
   ================================================================ */

:root {
  --bg:        #0e1116;
  --surface:   #171b22;
  --surface2:  #1c2128;
  --border:    #21262d;
  --text:      #e6edf3;
  --muted:     #7d8590;
  --dim:       #484f58;
  --accent:    #58a6ff;
  --accent-bg: rgba(88,166,255,.10);
  --green:     #3fb950;
  --green-bg:  rgba(63,185,80,.12);
  --amber:     #d29922;
  --amber-bg:  rgba(210,153,34,.12);
  --red:       #f85149;
  --code-bg:   #161b22;
  --code-bdr:  #30363d;
  --topbar-h:  48px;
  --sidebar-w: 220px;
}

[data-theme="light"] {
  --bg:        #ffffff;
  --surface:   #f6f8fa;
  --surface2:  #eaeef2;
  --border:    #d0d7de;
  --text:      #1f2328;
  --muted:     #656d76;
  --dim:       #9198a1;
  --accent:    #0969da;
  --accent-bg: rgba(9,105,218,.08);
  --green:     #1a7f37;
  --green-bg:  rgba(26,127,55,.10);
  --amber:     #9a6700;
  --amber-bg:  rgba(154,103,0,.10);
  --red:       #cf222e;
  --code-bg:   #f6f8fa;
  --code-bdr:  #d0d7de;
}

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

html { font-size: 15px; scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  line-height: 1.6;
}

/* ── Topbar ──────────────────────────────────────────────────── */

.topbar {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--topbar-h);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 12px;
  z-index: 100;
}

.topbar-left { display: flex; align-items: center; }

.brand {
  display: flex; align-items: center; gap: 7px;
  text-decoration: none; color: var(--text);
  font-weight: 600; font-size: 15px; white-space: nowrap;
}
.brand .glyph { color: var(--accent); font-size: 18px; line-height: 1; }
.brand .ver   {
  color: var(--muted); font-size: 11px; font-weight: 400;
  background: var(--surface2); border: 1px solid var(--border);
  border-radius: 10px; padding: 1px 7px;
}

.topbar-mid { flex: 1; display: flex; justify-content: center; }

.kbar {
  display: flex; align-items: center; gap: 8px;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 6px; padding: 5px 12px;
  color: var(--muted); font-size: 13px;
  cursor: pointer; width: 260px; font-family: inherit;
}
.kbar:hover { border-color: var(--accent); color: var(--text); }
.kbar .kbd  { margin-left: auto; display: flex; gap: 2px; font-size: 11px; color: var(--dim); }
.kbar .kbd span {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 3px; padding: 0 4px; line-height: 18px;
}

.topbar-right { display: flex; align-items: center; gap: 8px; }

.iconbtn {
  background: none; border: none; cursor: pointer;
  color: var(--muted); font-size: 16px;
  padding: 4px 8px; border-radius: 4px; line-height: 1;
}
.iconbtn:hover { background: var(--surface2); color: var(--text); }

.linkbtn {
  display: inline-flex; align-items: center; gap: 5px;
  background: none; border: 1px solid var(--border); border-radius: 6px;
  color: var(--text); font-size: 13px; padding: 4px 10px;
  text-decoration: none; white-space: nowrap;
}
.linkbtn:hover { border-color: var(--accent); color: var(--accent); }

/* ── Sidebar ─────────────────────────────────────────────────── */

.sidebar {
  position: fixed;
  top: var(--topbar-h); left: 0; bottom: 0;
  width: var(--sidebar-w);
  background: var(--surface);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  padding: 16px 0 48px;
  z-index: 50;
}

.sb-group { margin-bottom: 4px; }

.sb-group-title {
  padding: 10px 16px 4px;
  font-size: 10.5px; font-weight: 600;
  letter-spacing: 0.07em; color: var(--dim);
  text-transform: uppercase;
}

.sb-link {
  display: flex; align-items: center; justify-content: space-between;
  padding: 5px 16px; font-size: 13.5px; color: var(--muted);
  text-decoration: none; border-left: 2px solid transparent;
  cursor: pointer; transition: color 0.1s;
}
.sb-link:hover  { color: var(--text); background: var(--surface2); }
.sb-link.active {
  color: var(--accent); border-left-color: var(--accent);
  background: var(--accent-bg); font-weight: 500;
}

/* ── Tags / pills ────────────────────────────────────────────── */

.tag {
  font-size: 10px; font-weight: 600; padding: 1px 6px;
  border-radius: 10px; text-transform: lowercase; letter-spacing: 0.02em;
}
.tag.stable  { background: var(--green-bg); color: var(--green); }
.tag.planned { background: var(--amber-bg); color: var(--amber); }

.pill {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 12px; font-weight: 500; padding: 2px 10px;
  border-radius: 12px; vertical-align: middle;
}
.pill.stable  { background: var(--green-bg); color: var(--green); }
.pill.planned { background: var(--amber-bg); color: var(--amber); }

/* ── Content area ────────────────────────────────────────────── */

.content {
  margin-left: var(--sidebar-w);
  padding-top: var(--topbar-h);
  min-height: 100vh;
}

.page {
  max-width: 860px;
  padding: 48px 48px 96px;
}

/* ── Typography ──────────────────────────────────────────────── */

.eyebrow {
  font-size: 11px; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--muted); margin-bottom: 10px;
  font-family: 'JetBrains Mono', monospace;
}

h1.page-title {
  font-size: 30px; font-weight: 700; line-height: 1.2;
  letter-spacing: -0.02em; margin-bottom: 16px;
}

h2 {
  font-size: 19px; font-weight: 600; line-height: 1.3;
  margin: 40px 0 12px; padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

h3 { font-size: 15px; font-weight: 600; margin: 24px 0 8px; }

h4 {
  font-size: 12px; font-weight: 600; margin: 20px 0 6px;
  text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted);
}

p { margin-bottom: 14px; }

p.lede {
  font-size: 16px; color: var(--muted); line-height: 1.65;
  max-width: 700px; margin-bottom: 28px;
}

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

code {
  font-family: 'JetBrains Mono', monospace; font-size: 12.5px;
  background: var(--code-bg); border: 1px solid var(--code-bdr);
  border-radius: 4px; padding: 1px 5px;
}

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

.code-block {
  background: var(--code-bg); border: 1px solid var(--code-bdr);
  border-radius: 8px; margin: 16px 0; overflow: hidden;
}

.code-block-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 7px 14px; background: var(--surface);
  border-bottom: 1px solid var(--code-bdr);
  font-size: 12px; font-family: 'JetBrains Mono', monospace;
}
.code-block-header .lang     { color: var(--accent); font-weight: 500; }
.code-block-header .filename { color: var(--muted); }

.code-block pre {
  margin: 0; padding: 16px; overflow-x: auto;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px; line-height: 1.55;
  color: var(--text); background: transparent; border: none;
}

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

.code-tabs { margin: 16px 0; }

.tab-bar {
  display: flex; align-items: flex-end;
  background: var(--surface); border: 1px solid var(--code-bdr);
  border-bottom: none; border-radius: 8px 8px 0 0;
  padding: 0 10px; gap: 2px;
}

.tab-btn {
  background: none; border: none; border-bottom: 2px solid transparent;
  color: var(--muted); cursor: pointer;
  font-family: 'JetBrains Mono', monospace; font-size: 12px; font-weight: 500;
  padding: 7px 10px; transition: color 0.1s;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active { border-bottom-color: var(--accent); color: var(--accent); }

.tab-panel { display: none; }
.tab-panel.active { display: block; }
.tab-panel > .code-block { margin: 0; border-radius: 0 0 8px 8px; border-top: none; }

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

.tbl { width: 100%; border-collapse: collapse; font-size: 13.5px; margin: 16px 0; }
.tbl th {
  text-align: left; padding: 8px 12px;
  background: var(--surface); border-bottom: 1px solid var(--border);
  font-size: 11px; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.05em; color: var(--muted);
}
.tbl td { padding: 8px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
.tbl tr:last-child td { border-bottom: none; }
.tbl tr:hover td { background: var(--surface); }
.tbl .mono  { font-family: 'JetBrains Mono', monospace; font-size: 12.5px; }
.tbl .muted { color: var(--muted); }

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

.callout {
  border-left: 3px solid; border-radius: 0 6px 6px 0;
  padding: 12px 16px; margin: 20px 0;
  background: var(--surface); font-size: 14px;
}
.callout .h {
  display: block; font-size: 10.5px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.07em; margin-bottom: 5px;
}
.callout.info { border-color: var(--accent); }
.callout.info .h { color: var(--accent); }
.callout.warn { border-color: var(--amber); }
.callout.warn .h { color: var(--amber); }
.callout.tip  { border-color: var(--green); }
.callout.tip  .h { color: var(--green); }

/* ── Hero (index.html only) ──────────────────────────────────── */

.hero { padding: 40px 0 32px; }

.hero h1 {
  font-size: 40px; font-weight: 700; line-height: 1.12;
  letter-spacing: -0.03em; margin-bottom: 20px;
}
.hero h1 .ac { color: var(--accent); }

.btnrow { display: flex; gap: 12px; margin-bottom: 28px; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center;
  padding: 9px 20px; border-radius: 6px;
  font-size: 14px; font-weight: 500; text-decoration: none;
  cursor: pointer; border: none;
  font-family: 'JetBrains Mono', monospace;
}
.btn.primary { background: var(--accent); color: #fff; }
.btn.primary:hover { opacity: .88; text-decoration: none; }
.btn.ghost   { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn.ghost:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }

.status-row {
  display: flex; flex-wrap: wrap; gap: 18px;
  font-size: 13px; color: var(--muted);
}
.dot {
  display: inline-block; width: 8px; height: 8px;
  border-radius: 50%; margin-right: 5px; vertical-align: middle;
}
.dot.stable  { background: var(--green); }
.dot.planned { background: var(--amber); }

/* ── Two-audience demo split ─────────────────────────────────── */

.demo-split {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 16px 0;
}
.demo-label {
  font-size: 11px; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.07em; color: var(--muted); margin-bottom: 6px;
  font-family: 'JetBrains Mono', monospace;
}

/* ── Principle cards ─────────────────────────────────────────── */

.principle {
  border: 1px solid var(--border); border-radius: 8px;
  padding: 20px 24px; margin: 14px 0; background: var(--surface);
}
.principle .p-num  {
  font-family: 'JetBrains Mono', monospace; font-size: 11px;
  color: var(--dim); margin-bottom: 5px;
}
.principle .p-name { font-size: 15px; font-weight: 600; margin-bottom: 7px; }
.principle .p-body { font-size: 14px; color: var(--muted); line-height: 1.6; }

/* ── Prev / Next ─────────────────────────────────────────────── */

.pn-row {
  display: flex; justify-content: space-between;
  gap: 16px; margin-top: 64px; padding-top: 24px;
  border-top: 1px solid var(--border);
}
.pn {
  display: flex; flex-direction: column; gap: 4px;
  padding: 14px 18px; border: 1px solid var(--border);
  border-radius: 8px; text-decoration: none; color: var(--text);
  min-width: 160px; max-width: 300px; flex: 1;
}
.pn:hover { border-color: var(--accent); text-decoration: none; }
.pn.next  { text-align: right; }
.pn .lbl  { font-size: 11.5px; color: var(--muted); }
.pn .nm   { font-size: 14px; font-weight: 500; color: var(--accent); }

/* ── Search palette ──────────────────────────────────────────── */

.kpal-backdrop {
  position: fixed; inset: 0;
  background: rgba(1,4,9,.72);
  z-index: 200;
  display: flex; align-items: flex-start; justify-content: center;
  padding-top: 14vh;
}

.kpal {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 10px; width: 560px; max-width: 92vw;
  overflow: hidden; box-shadow: 0 24px 64px rgba(0,0,0,.5);
}

.kpal input {
  width: 100%; background: transparent; border: none;
  border-bottom: 1px solid var(--border);
  padding: 14px 16px; font-size: 15px; color: var(--text);
  outline: none; font-family: inherit;
}

.kpal-results { max-height: 340px; overflow-y: auto; }

.kpal-item {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 16px; cursor: pointer;
  font-size: 13.5px; text-decoration: none; color: var(--text);
}
.kpal-item:hover, .kpal-item.active { background: var(--surface2); }
.kpal-item .group { font-size: 11px; color: var(--muted); min-width: 140px; flex-shrink: 0; }
.kpal-item .title { color: var(--text); }

.kpal-empty { padding: 28px 16px; text-align: center; color: var(--muted); font-size: 14px; }

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

@media (max-width: 860px) {
  .demo-split { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .sidebar        { display: none; }
  .content        { margin-left: 0; }
  .page           { padding: 24px 20px 64px; }
  .hero h1        { font-size: 28px; }
  .topbar-mid     { display: none; }
  .pn-row         { flex-direction: column; }
}