/* ============================================================
   PathWise docs — silo7 look and feel
   Brand tokens mirror silo7-site/src/styles/tokens.css.
   Layout chrome (portal shell) is doc-specific.
   ============================================================ */

:root {
  /* Brand tokens (from silo7-site tokens.css) */
  --color-canvas:  #07080A;
  --color-panel:   #111214;
  --color-raised:  #15171A;
  --color-terminal:#0A0B0D;
  --color-heading: #F4F4F5;
  --color-muted:   #9CA3AF;
  --color-border:  #27272A;
  --color-accent:  #4ADE80;
  --color-amber:   #FBBF24;
  --color-red:     #F87171;

  --font-heading: 'JetBrains Mono', ui-monospace, monospace;
  --font-body:    'Inter', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, monospace;

  /* Doc-portal layout */
  --topbar-h: 60px;
  --sidebar-w: 280px;
  --toc-w: 236px;
  --content-max: 760px;
  --gutter: 40px;

  --radius: 10px;
  --radius-sm: 6px;
  --accent-dim: color-mix(in srgb, var(--color-accent) 14%, transparent);
  --accent-line: color-mix(in srgb, var(--color-accent) 40%, transparent);
  --shadow: 0 1px 0 rgba(255,255,255,0.02), 0 8px 30px rgba(0,0,0,0.45);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}

html, body { margin: 0; padding: 0; }

body {
  background-color: var(--color-canvas);
  color: var(--color-muted);
  font-family: var(--font-body);
  font-size: 15.5px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  /* faint atmosphere at the top, kept subtle for legibility */
  background-image:
    radial-gradient(900px 380px at 80% -8%, rgba(74,222,128,0.05), transparent 70%),
    radial-gradient(700px 300px at 0% -4%, rgba(74,222,128,0.03), transparent 70%);
  background-attachment: fixed;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-heading);
  margin: 0;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

a { color: var(--color-accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

code, pre, kbd, samp { font-family: var(--font-mono); }

.skip {
  position: absolute; left: -999px; top: 0; z-index: 100;
  background: var(--color-accent); color: #04120A;
  padding: 10px 16px; border-radius: 0 0 var(--radius-sm) 0; font-weight: 600;
}
.skip:focus { left: 0; }

/* ---------- Top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 40;
  height: var(--topbar-h);
  display: flex; align-items: center; gap: 20px;
  padding: 0 20px;
  background: color-mix(in srgb, var(--color-canvas) 82%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-heading); font-weight: 700;
  color: var(--color-heading); white-space: nowrap;
}
.brand:hover { text-decoration: none; }
.brand .mark {
  display: inline-grid; place-items: center;
  width: 26px; height: 26px; border-radius: 7px;
  background: var(--accent-dim); border: 1px solid var(--accent-line);
  color: var(--color-accent); font-size: 14px;
}
.brand .name { font-size: 15px; }
.brand .name b { color: var(--color-accent); font-weight: 700; }
.brand .sub {
  color: var(--color-muted); font-family: var(--font-body);
  font-weight: 500; font-size: 12px; letter-spacing: 0.02em;
  padding-left: 10px; margin-left: 2px; border-left: 1px solid var(--color-border);
}

.search {
  margin-left: auto; position: relative; width: min(340px, 42vw);
}
.search input {
  width: 100%; height: 38px;
  background: var(--color-panel); color: var(--color-heading);
  border: 1px solid var(--color-border); border-radius: 8px;
  padding: 0 12px 0 36px; font-family: var(--font-body); font-size: 14px;
  outline: none; transition: border-color .15s, box-shadow .15s;
}
.search input::placeholder { color: var(--color-muted); }
.search input:focus {
  border-color: var(--accent-line);
  box-shadow: 0 0 0 3px var(--accent-dim);
}
.search .icon {
  position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
  color: var(--color-muted); pointer-events: none; font-size: 13px;
}
.search kbd {
  position: absolute; right: 8px; top: 50%; transform: translateY(-50%);
  font-size: 11px; color: var(--color-muted);
  border: 1px solid var(--color-border); border-radius: 4px;
  padding: 1px 5px; background: var(--color-raised);
}

.menu-toggle {
  display: none; background: var(--color-panel);
  border: 1px solid var(--color-border); color: var(--color-heading);
  width: 38px; height: 38px; border-radius: 8px; cursor: pointer;
  font-size: 16px;
}

/* ---------- Layout ---------- */
.layout {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr) var(--toc-w);
  max-width: 1440px; margin: 0 auto;
  align-items: start;
}

/* ---------- Sidebar ---------- */
.sidebar {
  position: sticky; top: var(--topbar-h);
  height: calc(100vh - var(--topbar-h));
  overflow-y: auto; overscroll-behavior: contain;
  padding: 26px 8px 60px 20px;
  border-right: 1px solid var(--color-border);
}
.sidebar::-webkit-scrollbar { width: 9px; }
.sidebar::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 9px; }

.nav-group { margin-bottom: 22px; }
.nav-group > .nav-cat {
  display: block; width: 100%; text-align: left;
  font-family: var(--font-heading); font-size: 11px; font-weight: 600;
  letter-spacing: 0.09em; text-transform: uppercase;
  color: var(--color-muted); background: none; border: 0; cursor: pointer;
  padding: 6px 10px; margin-bottom: 4px;
}
.nav-cat .chev { float: right; transition: transform .15s; opacity: .6; }
.nav-group.collapsed .chev { transform: rotate(-90deg); }
.nav-group.collapsed .nav-links { display: none; }

.nav-links { list-style: none; margin: 0; padding: 0; }
.nav-links a {
  display: block; color: var(--color-muted);
  font-size: 14px; padding: 6px 10px; border-radius: var(--radius-sm);
  border-left: 2px solid transparent; margin-left: -2px;
  transition: color .12s, background .12s, border-color .12s;
}
.nav-links a:hover { color: var(--color-heading); background: var(--color-panel); text-decoration: none; }
.nav-links a.active {
  color: var(--color-accent); background: var(--accent-dim);
  border-left-color: var(--color-accent); font-weight: 500;
}
.nav-links a .tag {
  float: right; font-family: var(--font-mono); font-size: 9.5px;
  letter-spacing: .05em; text-transform: uppercase; color: var(--color-amber);
  border: 1px solid color-mix(in srgb, var(--color-amber) 40%, transparent);
  border-radius: 4px; padding: 0 4px; margin-top: 2px; opacity: .85;
}
.nav-empty { color: var(--color-muted); font-size: 13px; padding: 10px; opacity: .7; }

/* ---------- Content ---------- */
.content {
  min-width: 0;
  padding: 34px var(--gutter) 90px;
}
.doc { max-width: var(--content-max); }

.breadcrumb {
  font-family: var(--font-mono); font-size: 12px; color: var(--color-muted);
  margin-bottom: 20px; display: flex; flex-wrap: wrap; gap: 6px; align-items: center;
}
.breadcrumb a { color: var(--color-muted); }
.breadcrumb a:hover { color: var(--color-accent); }
.breadcrumb .sep { opacity: .5; }

.doc h1 {
  font-size: 33px; margin-bottom: 10px;
  animation: rise .5s ease both;
}
.doc .lead {
  font-size: 18px; color: #C7CBD1; margin: 0 0 30px;
  animation: rise .5s ease .04s both;
}
.doc h2 {
  font-size: 22px; margin: 42px 0 14px;
  padding-top: 10px; scroll-margin-top: calc(var(--topbar-h) + 16px);
}
.doc h3 {
  font-size: 17px; color: var(--color-heading);
  margin: 28px 0 10px; scroll-margin-top: calc(var(--topbar-h) + 16px);
}
.doc p { margin: 0 0 16px; }
.doc ul, .doc ol { margin: 0 0 16px; padding-left: 22px; }
.doc li { margin: 6px 0; }
.doc li::marker { color: var(--color-accent); }
.doc strong { color: var(--color-heading); font-weight: 600; }
.doc a { text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--accent-line); }

.doc .anchor {
  opacity: 0; margin-left: 8px; color: var(--color-muted);
  font-weight: 400; text-decoration: none;
}
.doc h2:hover .anchor, .doc h3:hover .anchor { opacity: .6; }

/* code */
.doc :not(pre) > code {
  background: var(--color-terminal); border: 1px solid var(--color-border);
  color: #E6E7EA; border-radius: 5px; padding: 1px 6px; font-size: 0.86em;
}
.doc pre {
  background: var(--color-terminal); border: 1px solid var(--color-border);
  border-radius: var(--radius); padding: 16px 18px; overflow-x: auto;
  margin: 0 0 20px; font-size: 13.5px; line-height: 1.6;
  box-shadow: var(--shadow);
}
.doc pre code { color: #D6DAE0; }
.doc pre .c { color: var(--color-muted); }        /* comment */
.doc pre .g { color: var(--color-accent); }        /* good / prompt */
.doc pre .a { color: var(--color-amber); }         /* accent value */

/* tables */
.doc table {
  width: 100%; border-collapse: collapse; margin: 0 0 22px; font-size: 14px;
  border: 1px solid var(--color-border); border-radius: var(--radius); overflow: hidden;
}
.doc th, .doc td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--color-border); }
.doc th {
  background: var(--color-panel); color: var(--color-heading);
  font-family: var(--font-heading); font-size: 12px; letter-spacing: .03em; text-transform: uppercase;
}
.doc tr:last-child td { border-bottom: 0; }
.doc td code { white-space: nowrap; }

/* callouts */
.callout {
  position: relative; margin: 0 0 22px; padding: 14px 16px 14px 44px;
  background: var(--color-panel); border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-muted); border-radius: var(--radius-sm);
  font-size: 14.5px;
}
.callout::before {
  position: absolute; left: 14px; top: 13px; font-size: 15px; line-height: 1.3;
}
.callout p:last-child { margin-bottom: 0; }
.callout strong { color: var(--color-heading); }
.callout--note   { border-left-color: var(--color-accent); }
.callout--note::before   { content: "›"; color: var(--color-accent); font-weight: 700; }
.callout--tip    { border-left-color: var(--color-accent); background: var(--accent-dim); }
.callout--tip::before    { content: "✦"; color: var(--color-accent); }
.callout--warn   { border-left-color: var(--color-red); }
.callout--warn::before   { content: "!"; color: var(--color-red); font-weight: 700; }
/* VERIFY: exact command/number to confirm against the built product */
.callout--verify {
  border-left-color: var(--color-amber);
  background: color-mix(in srgb, var(--color-amber) 7%, var(--color-panel));
}
.callout--verify::before { content: "?"; color: var(--color-amber); font-weight: 700; }
/* UNBUILT: behavior described ahead of shipping (roadmap, not yet in the build) */
.callout--unbuilt {
  border-left-color: var(--color-amber); border-left-style: dashed;
  background: repeating-linear-gradient(-45deg,
    transparent, transparent 9px,
    color-mix(in srgb, var(--color-amber) 6%, transparent) 9px,
    color-mix(in srgb, var(--color-amber) 6%, transparent) 18px);
}
.callout--unbuilt::before { content: "◷"; color: var(--color-amber); }
.callout .label {
  display: inline-block; font-family: var(--font-mono); font-size: 10px;
  letter-spacing: .08em; text-transform: uppercase; color: var(--color-amber);
  border: 1px solid color-mix(in srgb, var(--color-amber) 45%, transparent);
  border-radius: 4px; padding: 0 5px; margin-right: 8px; vertical-align: 1px;
}

/* deep dive (under the hood) */
.deepdive {
  margin: 0 0 22px; border: 1px solid var(--color-border);
  border-radius: var(--radius); background: var(--color-raised); overflow: hidden;
}
.deepdive > summary {
  cursor: pointer; list-style: none; padding: 12px 16px;
  font-family: var(--font-heading); font-size: 13.5px; color: var(--color-heading);
  display: flex; align-items: center; gap: 10px; user-select: none;
}
.deepdive > summary::-webkit-details-marker { display: none; }
.deepdive > summary::before {
  content: "▸"; color: var(--color-accent); transition: transform .15s; font-size: 12px;
}
.deepdive[open] > summary::before { transform: rotate(90deg); }
.deepdive > summary .hint {
  margin-left: auto; font-family: var(--font-body); font-size: 12px;
  color: var(--color-muted); font-weight: 400;
}
.deepdive > summary:hover { color: var(--color-accent); }
.deepdive .body { padding: 4px 18px 6px; border-top: 1px solid var(--color-border); }
.deepdive .body > *:first-child { margin-top: 14px; }

/* step list */
.steps { counter-reset: step; list-style: none; padding: 0; margin: 0 0 22px; }
.steps > li {
  counter-increment: step; position: relative; padding: 2px 0 18px 44px; margin: 0;
  border-left: 1px solid var(--color-border); margin-left: 14px;
}
.steps > li:last-child { border-left-color: transparent; padding-bottom: 0; }
.steps > li::before {
  content: counter(step); position: absolute; left: -14px; top: -2px;
  width: 28px; height: 28px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--color-panel); border: 1px solid var(--accent-line);
  color: var(--color-accent); font-family: var(--font-mono); font-size: 13px; font-weight: 600;
}

/* doc footer */
.doc-footer {
  max-width: var(--content-max); margin-top: 56px; padding-top: 22px;
  border-top: 1px solid var(--color-border);
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-size: 13px; color: var(--color-muted);
}
.doc-footer a { color: var(--color-muted); }
.doc-footer a:hover { color: var(--color-accent); }

/* ---------- Main-site nav (escape hatch out of the docs portal) ---------- */
.site-nav {
  margin-left: auto;
  display: flex; align-items: center; gap: 18px;
  font-size: 14px; white-space: nowrap;
}
.site-nav a { color: var(--color-muted); }
.site-nav a:hover { color: var(--color-heading); }
.site-nav .site-cta {
  padding: 6px 12px; border-radius: 6px;
  background: var(--color-accent); color: #04120A;
  font-weight: 600;
}
.site-nav .site-cta:hover { color: #04120A; opacity: 0.9; }

/* The topbar runs out of room well before the phone breakpoint: drop the
   site links there and rely on the sidebar drawer copy instead. */
@media (max-width: 1100px) {
  .site-nav { display: none; }
}

.site-footer-links {
  display: flex; gap: 14px; flex-wrap: wrap;
}

/* Sidebar copy of the site links, for the mobile drawer. */
.nav-site { margin-top: 8px; padding-top: 12px; border-top: 1px solid var(--color-border); }

/* ---------- Right TOC ---------- */
.toc {
  position: sticky; top: var(--topbar-h);
  height: calc(100vh - var(--topbar-h)); overflow-y: auto;
  padding: 38px 20px 60px 6px;
}
.toc .toc-title {
  font-family: var(--font-heading); font-size: 11px; letter-spacing: .09em;
  text-transform: uppercase; color: var(--color-muted); margin-bottom: 12px;
}
.toc ul { list-style: none; margin: 0; padding: 0; }
.toc li a {
  display: block; color: var(--color-muted); font-size: 13px;
  padding: 4px 12px; border-left: 2px solid var(--color-border);
  transition: color .12s, border-color .12s;
}
.toc li.lvl-3 a { padding-left: 24px; font-size: 12.5px; }
.toc li a:hover { color: var(--color-heading); text-decoration: none; }
.toc li a.active { color: var(--color-accent); border-left-color: var(--color-accent); }
.toc.empty { display: none; }

@keyframes rise { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* ---------- Landing (index) ---------- */
.hero {
  max-width: 900px; padding: 30px 0 10px;
}
.hero .eyebrow {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .12em;
  text-transform: uppercase; color: var(--color-accent); margin-bottom: 14px;
}
.hero h1 { font-size: 40px; margin-bottom: 14px; }
.hero p { font-size: 18px; max-width: 640px; }
.card-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 16px; margin: 30px 0 0; max-width: 980px;
}
.card {
  display: block; background: var(--color-panel); border: 1px solid var(--color-border);
  border-radius: var(--radius); padding: 20px; transition: border-color .15s, transform .15s;
}
.card:hover { border-color: var(--accent-line); transform: translateY(-2px); text-decoration: none; }
.card .k {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .08em;
  text-transform: uppercase; color: var(--color-accent); margin-bottom: 10px;
}
.card h3 { font-size: 16px; margin-bottom: 6px; }
.card p { font-size: 13.5px; margin: 0; }

/* ---------- Responsive ---------- */
@media (max-width: 1160px) {
  .layout { grid-template-columns: var(--sidebar-w) minmax(0, 1fr); }
  .toc { display: none; }
}
@media (max-width: 880px) {
  :root { --gutter: 22px; }
  .layout { grid-template-columns: minmax(0, 1fr); }
  .menu-toggle { display: inline-grid; place-items: center; order: -1; }
  .search { width: 100%; }
  .sidebar {
    position: fixed; top: var(--topbar-h); left: 0; z-index: 39;
    width: min(320px, 86vw); height: calc(100vh - var(--topbar-h));
    background: var(--color-canvas); border-right: 1px solid var(--color-border);
    transform: translateX(-102%); transition: transform .2s ease;
    box-shadow: var(--shadow);
  }
  body.nav-open .sidebar { transform: none; }
  body.nav-open::after {
    content: ""; position: fixed; inset: var(--topbar-h) 0 0 0; z-index: 38;
    background: rgba(0,0,0,.5);
  }
}