/* mach docs prototype */

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

:root {
  --magenta: #FF00FF;
  --magenta-dim: #cc00cc;
  --magenta-glow: rgba(255, 0, 255, 0.14);
  --bg: #0a0a0a;
  --bg-raised: #111111;
  --bg-card: #161616;
  --border: #222222;
  --border-light: #2a2a2a;
  --text: #d6d6d6;
  --text-dim: #888888;
  --text-bright: #ffffff;
  --code-bg: #0d0d0d;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", "SF Mono", Consolas, monospace;
  --topbar-h: 56px;
  --sidebar-w: 264px;
  --toc-w: 220px;
}

html { color-scheme: dark; scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--magenta); text-decoration: none; transition: color 0.15s; }
a:hover { color: var(--text-bright); }

:focus-visible { outline: 2px solid var(--magenta); outline-offset: 2px; border-radius: 3px; }

/* top bar */
.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  padding: 0 1.25rem;
  gap: 1rem;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  z-index: 50;
}

.brand { display: flex; align-items: center; gap: 0.55rem; color: var(--text-bright); font-weight: 600; }
.brand img { display: block; }
.brand .brand-docs { color: var(--text-dim); font-weight: 500; }

.badge {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  padding: 0.12em 0.5em;
  border-radius: 999px;
  border: 1px solid var(--border-light);
  color: var(--text-dim);
  white-space: nowrap;
}
.badge-version { color: #7ee787; border-color: rgba(126, 231, 135, 0.35); }
.badge-planned { color: #ffa657; border-color: rgba(255, 166, 87, 0.35); }
.badge-removed { color: #ff7b72; border-color: rgba(255, 123, 114, 0.35); }
.badge-new     { color: #d2a8ff; border-color: rgba(210, 168, 255, 0.35); }

.topbar-spacer { flex: 1; }
.topbar-actions { display: flex; align-items: center; gap: 1rem; }
.topbar-actions a { color: var(--text-dim); font-size: 0.9rem; }
.topbar-actions a:hover { color: var(--text-bright); }

.search-trigger {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--bg-raised);
  border: 1px solid var(--border-light);
  border-radius: 7px;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 0.4rem 0.7rem;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}
.search-trigger:hover { border-color: var(--magenta-dim); color: var(--text); }
.kbd {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  padding: 0.05em 0.4em;
  color: var(--text-dim);
}

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-light);
  border-radius: 6px;
  width: 34px; height: 34px;
  cursor: pointer;
  position: relative;
}
.menu-toggle span, .menu-toggle span::before, .menu-toggle span::after {
  content: "";
  position: absolute;
  left: 8px; right: 8px;
  height: 1.5px;
  background: var(--text);
}
.menu-toggle span { top: 50%; }
.menu-toggle span::before { top: -5px; }
.menu-toggle span::after { top: 5px; }

/* layout */
.docs-layout {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr) var(--toc-w);
  max-width: 1400px;
  margin: 0 auto;
  padding-top: var(--topbar-h);
}

/* sidebar */
.sidebar {
  position: sticky;
  top: var(--topbar-h);
  align-self: start;
  height: calc(100vh - var(--topbar-h));
  overflow-y: auto;
  padding: 1.75rem 1rem 3rem 1.25rem;
  border-right: 1px solid var(--border);
  scrollbar-width: thin;
  scrollbar-color: var(--border-light) transparent;
}
.nav-group { margin-bottom: 1.5rem; }
.nav-group-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  padding: 0 0.6rem;
  margin-bottom: 0.5rem;
}
.nav-link {
  display: block;
  padding: 0.32rem 0.6rem;
  border-radius: 6px;
  color: var(--text-dim);
  font-size: 0.88rem;
  border-left: 2px solid transparent;
  transition: color 0.12s, background 0.12s;
}
.nav-link:hover { color: var(--text-bright); background: var(--bg-raised); }
.nav-link.active {
  color: var(--magenta);
  background: var(--magenta-glow);
  border-left-color: var(--magenta);
  font-weight: 500;
}
.nav-link.soon { opacity: 0.55; }

/* content */
.content {
  min-width: 0;
  padding: 2.5rem 3rem 5rem;
  max-width: 820px;
}
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-bottom: 1.1rem;
}
.breadcrumb a { color: var(--text-dim); }
.breadcrumb a:hover { color: var(--text); }
.breadcrumb .sep { opacity: 0.5; margin: 0 0.4rem; }

.content h1 {
  font-size: 2.3rem;
  font-weight: 700;
  color: var(--text-bright);
  letter-spacing: -0.02em;
  line-height: 1.15;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  flex-wrap: wrap;
}
.content .lead {
  font-size: 1.15rem;
  color: var(--text-dim);
  margin: 0.9rem 0 2.25rem;
  line-height: 1.6;
}
.content h2 {
  font-size: 1.45rem;
  font-weight: 650;
  color: var(--text-bright);
  margin: 2.75rem 0 0.9rem;
  padding-top: 0.5rem;
  letter-spacing: -0.01em;
  scroll-margin-top: calc(var(--topbar-h) + 1rem);
}
.content h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-bright);
  margin: 1.9rem 0 0.6rem;
  scroll-margin-top: calc(var(--topbar-h) + 1rem);
}
.content p { margin: 0.9rem 0; }
.content ul, .content ol { margin: 0.9rem 0 0.9rem 1.4rem; }
.content li { margin: 0.4rem 0; }
.content strong { color: var(--text-bright); font-weight: 600; }

/* inline + block code */
code {
  font-family: var(--font-mono);
  font-size: 0.86em;
}
:not(pre) > code {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.1em 0.4em;
  color: #e8b0ff;
}
pre.code {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 1.1rem 1.3rem;
  overflow-x: auto;
  margin: 1.3rem 0;
  font-size: 0.85rem;
  line-height: 1.7;
  scrollbar-width: thin;
  scrollbar-color: var(--border-light) transparent;
}
pre.code code { font-size: inherit; color: var(--text); }

/* syntax tokens (shared vocabulary with the landing page) */
.kw { color: var(--magenta); }
.type { color: #79c0ff; }
.fn { color: #d2a8ff; }
.str { color: #a5d6ff; }
.num { color: #ffa657; }
.mod { color: #7ee787; }
.param { color: #e0e0e0; }
.ct { color: #ff7b72; }
.deco { color: #e3b341; }
.cmt { color: #6e7681; }

/* start-here cards */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0 2rem;
}
.card {
  display: block;
  padding: 1.1rem 1.2rem;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--bg-card);
  transition: border-color 0.15s;
}
.card:hover { border-color: var(--magenta-dim); }
.card-title { color: var(--text-bright); font-weight: 600; margin-bottom: 0.25rem; }
.card-desc { color: var(--text-dim); font-size: 0.86rem; line-height: 1.5; }

/* callouts */
.callout {
  margin: 1.5rem 0;
  padding: 0.9rem 1.1rem;
  border: 1px solid var(--border);
  border-left-width: 3px;
  border-radius: 7px;
  background: var(--bg-raised);
  font-size: 0.95rem;
}
.callout p { margin: 0.3rem 0 0; }
.callout-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
}
.callout.note { border-left-color: #79c0ff; }
.callout.note .callout-label { color: #79c0ff; }
.callout.warn { border-left-color: #ffa657; }
.callout.warn .callout-label { color: #ffa657; }
.callout.changed { border-left-color: #ff7b72; }
.callout.changed .callout-label { color: #ff7b72; }

/* tables */
.content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.3rem 0;
  font-size: 0.9rem;
}
.content th, .content td {
  text-align: left;
  padding: 0.55rem 0.8rem;
  border-bottom: 1px solid var(--border);
}
.content th { color: var(--text-bright); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; }
.content td code { white-space: nowrap; }

/* see also + page nav */
.see-also {
  margin-top: 3rem;
  padding: 1.1rem 1.3rem;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--bg-card);
}
.see-also h2 { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-dim); margin: 0 0 0.6rem; padding: 0; }
.see-also ul { list-style: none; margin: 0; }
.see-also li { margin: 0.3rem 0; }

.page-nav {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 3rem;
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
}
.page-nav a {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.8rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  min-width: 0;
  transition: border-color 0.15s;
}
.page-nav a:hover { border-color: var(--magenta-dim); }
.page-nav a.next { text-align: right; margin-left: auto; }
.page-nav .pn-label { font-size: 0.72rem; color: var(--text-dim); font-family: var(--font-mono); }
.page-nav .pn-title { color: var(--text-bright); font-weight: 500; }

/* on-this-page TOC */
.toc {
  position: sticky;
  top: var(--topbar-h);
  align-self: start;
  height: calc(100vh - var(--topbar-h));
  overflow-y: auto;
  padding: 2.5rem 1.25rem 3rem 0.5rem;
}
.toc-title {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  margin-bottom: 0.7rem;
}
.toc a {
  display: block;
  color: var(--text-dim);
  font-size: 0.82rem;
  padding: 0.22rem 0 0.22rem 0.8rem;
  border-left: 2px solid var(--border);
  transition: color 0.12s, border-color 0.12s;
}
.toc a.sub { padding-left: 1.7rem; }
.toc a:hover { color: var(--text); }
.toc a.active { color: var(--magenta); border-left-color: var(--magenta); }

/* command palette */
.palette {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(3px);
  z-index: 100;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding-top: 14vh;
}
.palette.open { display: flex; }
.palette-box {
  width: min(560px, 92vw);
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.6);
  overflow: hidden;
}
.palette-head { display: flex; align-items: center; gap: 0.6rem; padding: 0.9rem 1rem; border-bottom: 1px solid var(--border); }
.palette-prompt { font-family: var(--font-mono); color: var(--magenta); }
.palette-input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--text-bright);
  font-family: var(--font-mono);
  font-size: 0.95rem;
}
.palette-list { max-height: 50vh; overflow-y: auto; padding: 0.4rem; }
.palette-item {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.55rem 0.7rem;
  border-radius: 7px;
  cursor: pointer;
}
.palette-item .pi-group { font-family: var(--font-mono); font-size: 0.68rem; color: var(--text-dim); margin-left: auto; }
.palette-item .pi-title { color: var(--text); }
.palette-item.active { background: var(--magenta-glow); }
.palette-item.active .pi-title { color: var(--magenta); }
.palette-empty { padding: 1rem 0.7rem; color: var(--text-dim); font-size: 0.9rem; }

/* responsive */
@media (max-width: 1100px) {
  .docs-layout { grid-template-columns: var(--sidebar-w) minmax(0, 1fr); }
  .toc { display: none; }
  .content { padding: 2.5rem 2.25rem 5rem; }
}
@media (max-width: 820px) {
  .menu-toggle { display: block; }
  .docs-layout { grid-template-columns: 1fr; }
  .search-trigger .st-text, .search-trigger .kbd { display: none; }
  .sidebar {
    position: fixed;
    top: var(--topbar-h);
    left: 0;
    width: min(300px, 84vw);
    background: var(--bg);
    transform: translateX(-105%);
    transition: transform 0.22s ease;
    z-index: 40;
  }
  body.nav-open .sidebar { transform: none; }
  .content { padding: 2rem 1.4rem 4rem; }
  .content h1 { font-size: 1.9rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .sidebar { transition: none; }
}