/* ==========================================================================
   Mini-WAF docs — design tokens
   Palette: signal red, near-black, charcoal and graphite greys.
   ========================================================================== */

:root {
  --red: #e60000;
  --red-hi: #ff1a1a;
  --red-deep: #c40000;
  --red-soft: rgba(230, 0, 0, 0.08);
  --red-softer: rgba(230, 0, 0, 0.045);
  --red-line: rgba(230, 0, 0, 0.28);

  --bg: #ffffff;
  --bg-soft: #f6f6f7;
  --bg-sunk: #efeff1;
  --sidebar-bg: #fafafa;
  --elev: #ffffff;
  --border: #ebebee;
  --border-strong: #dadade;

  --text: #0f0f10;
  --text-2: #3d3d42;
  --text-3: #74747c;
  --text-4: #a3a3aa;

  --inline-bg: #f1f1f3;
  --inline-border: #e4e4e8;
  --inline-text: #1a1a1a;

  --code-bg: #0e0e0f;
  --code-head: #161617;
  --code-border: #232325;

  --shadow-sm: 0 1px 2px rgba(10, 10, 10, 0.05);
  --shadow-md: 0 8px 30px rgba(10, 10, 10, 0.08);
  --shadow-lg: 0 24px 80px rgba(10, 10, 10, 0.22);

  --brick-stroke: rgba(230, 0, 0, 0.13);

  --font: 'Inter', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --top: 64px;
  --sidebar-w: 284px;
  --toc-w: 232px;
  --content-w: 780px;
  --radius: 12px;

  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --red: #ff1a1a;
    --red-hi: #ff4d4d;
    --red-deep: #e60000;
    --red-soft: rgba(255, 26, 26, 0.12);
    --red-softer: rgba(255, 26, 26, 0.06);
    --red-line: rgba(255, 26, 26, 0.35);

    --bg: #0a0a0a;
    --bg-soft: #121212;
    --bg-sunk: #161616;
    --sidebar-bg: #0c0c0c;
    --elev: #141414;
    --border: #1d1d1f;
    --border-strong: #2a2a2d;

    --text: #f2f2f2;
    --text-2: #c2c2c6;
    --text-3: #8a8a8a;
    --text-4: #5c5c61;

    --inline-bg: #1a1a1a;
    --inline-border: #262628;
    --inline-text: #ececec;

    --code-bg: #0f0f10;
    --code-head: #141415;
    --code-border: #1f1f21;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.5);
    --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 30px 90px rgba(0, 0, 0, 0.7);

    --brick-stroke: rgba(255, 26, 26, 0.12);
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --red: #ff1a1a;
  --red-hi: #ff4d4d;
  --red-deep: #e60000;
  --red-soft: rgba(255, 26, 26, 0.12);
  --red-softer: rgba(255, 26, 26, 0.06);
  --red-line: rgba(255, 26, 26, 0.35);

  --bg: #0a0a0a;
  --bg-soft: #121212;
  --bg-sunk: #161616;
  --sidebar-bg: #0c0c0c;
  --elev: #141414;
  --border: #1d1d1f;
  --border-strong: #2a2a2d;

  --text: #f2f2f2;
  --text-2: #c2c2c6;
  --text-3: #8a8a8a;
  --text-4: #5c5c61;

  --inline-bg: #1a1a1a;
  --inline-border: #262628;
  --inline-text: #ececec;

  --code-bg: #0f0f10;
  --code-head: #141415;
  --code-border: #1f1f21;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 30px 90px rgba(0, 0, 0, 0.7);

  --brick-stroke: rgba(255, 26, 26, 0.12);
  color-scheme: dark;
}

/* ==========================================================================
   Base
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }
code, kbd, pre { font-variant-ligatures: none; }

html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--top) + 20px); }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 16px/1.7 var(--font);
  font-feature-settings: 'cv11', 'ss01';
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}

::selection { background: var(--red-soft); color: var(--text); }
/* Code blocks stay dark in both themes, so their selection must too. */
.code ::selection, .install ::selection, .cta ::selection { background: rgba(255, 26, 26, 0.38); color: #ffffff; }

a { color: var(--red); text-decoration: none; }
a:hover { color: var(--red-hi); }

:focus-visible { outline: 2px solid var(--red); outline-offset: 2px; border-radius: 6px; }

svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex: none; }
svg.fill { fill: currentColor; stroke: none; }

kbd {
  font: 500 11px/1 var(--mono);
  padding: 4px 6px;
  border-radius: 6px;
  border: 1px solid var(--border-strong);
  border-bottom-width: 2px;
  background: var(--elev);
  color: var(--text-3);
}

/* Reading progress */
.progress { position: fixed; inset: 0 0 auto; height: 2px; z-index: 60; pointer-events: none; }
.progress span {
  display: block; height: 100%;
  background: linear-gradient(90deg, var(--red-deep), var(--red-hi));
  transform: scaleX(0); transform-origin: 0 50%;
  box-shadow: 0 0 12px var(--red-line);
}

/* ==========================================================================
   Top bar
   ========================================================================== */

.topbar {
  position: fixed; inset: 0 0 auto; height: var(--top); z-index: 50;
  display: flex; align-items: center; gap: 14px;
  padding: 0 20px;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(1.6) blur(14px);
  -webkit-backdrop-filter: saturate(1.6) blur(14px);
  border-bottom: 1px solid var(--border);
}

.brand { display: flex; align-items: center; gap: 10px; color: var(--text); }
.brand:hover { color: var(--text); }
.brand img { width: 30px; height: 30px; object-fit: contain; }
.brand-name { font-weight: 700; font-size: 18px; letter-spacing: -0.02em; }
.brand-name b { color: var(--red); font-weight: 800; margin-left: 2px; }

.version {
  font: 600 11px/1 var(--mono);
  color: var(--text-3);
  border: 1px solid var(--border-strong);
  padding: 5px 7px; border-radius: 999px;
}

.search-trigger {
  margin-left: auto;
  display: flex; align-items: center; gap: 10px;
  width: 280px; height: 38px; padding: 0 8px 0 12px;
  font: 500 14px var(--font); color: var(--text-3);
  background: var(--bg-soft); border: 1px solid var(--border); border-radius: 10px;
  cursor: pointer; transition: border-color .15s, background .15s;
}
.search-trigger:hover { border-color: var(--border-strong); color: var(--text-2); }
.search-trigger span { flex: 1; text-align: left; }
.search-trigger svg { width: 16px; height: 16px; }

.topnav { display: flex; gap: 2px; margin-left: 8px; }
.topnav a {
  color: var(--text-2); font-weight: 500; font-size: 14.5px;
  padding: 8px 11px; border-radius: 8px;
}
.topnav a:hover { color: var(--text); background: var(--bg-soft); }

.icon-btn {
  display: inline-grid; place-items: center;
  width: 38px; height: 38px; border-radius: 10px;
  color: var(--text-2); background: none; border: 0; cursor: pointer;
}
.icon-btn:hover { color: var(--text); background: var(--bg-soft); }
.menu-btn { display: none; margin-left: -8px; }

.i-moon { display: none; }
:root[data-theme="dark"] .i-sun { display: none; }
:root[data-theme="dark"] .i-moon { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .i-sun { display: none; }
  :root:not([data-theme="light"]) .i-moon { display: block; }
}

/* ==========================================================================
   Shell
   ========================================================================== */

.shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr) var(--toc-w);
  padding-top: var(--top);
  min-height: 100vh;
}

.sidebar {
  position: sticky; top: var(--top);
  height: calc(100vh - var(--top));
  overflow-y: auto; overscroll-behavior: contain;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  padding: 26px 16px 20px;
  display: flex; flex-direction: column;
  scrollbar-width: thin; scrollbar-color: var(--border-strong) transparent;
}

#sidebar-nav { flex: 1; }

.nav-group { margin-bottom: 18px; }
.nav-group-title {
  display: flex; align-items: center; justify-content: space-between; width: 100%;
  font: 700 11.5px/1 var(--font); letter-spacing: 0.09em; text-transform: uppercase;
  color: var(--text); background: none; border: 0; cursor: pointer;
  padding: 8px 12px; border-radius: 8px;
}
.nav-group-title:hover { background: var(--bg-sunk); }
.nav-group-title svg { width: 14px; height: 14px; color: var(--text-4); transition: transform .2s; }
.nav-group.closed .nav-group-title svg { transform: rotate(-90deg); }
.nav-group.closed .nav-list { display: none; }

.nav-list { list-style: none; margin: 4px 0 0; padding: 0; }
.nav-list a {
  position: relative; display: block;
  padding: 6px 12px 6px 14px; margin: 1px 0;
  color: var(--text-2); font-size: 14.5px; font-weight: 450;
  border-radius: 8px; transition: color .12s, background .12s;
}
.nav-list a:hover { color: var(--text); background: var(--bg-sunk); }
.nav-list a.active { color: var(--red); background: var(--red-soft); font-weight: 600; }
.nav-list a.active::before {
  content: ''; position: absolute; left: 0; top: 8px; bottom: 8px; width: 3px;
  border-radius: 3px; background: var(--red);
}

.sidebar-foot { padding-top: 16px; }
.support {
  display: block; padding: 14px 16px; border-radius: 12px;
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='48' height='24'%3E%3Cpath d='M0 .5H48M0 12.5H48M.5 0V12M24.5 12V24' stroke='%23e60000' stroke-opacity='.18' fill='none'/%3E%3C/svg%3E"),
    var(--bg);
  border: 1px solid var(--border);
  color: var(--text-2); font-size: 13px; line-height: 1.5;
  transition: border-color .15s, transform .15s;
}
.support strong { display: block; color: var(--text); font-size: 13.5px; margin-bottom: 2px; }
.support:hover { border-color: var(--red-line); color: var(--text-2); transform: translateY(-1px); }

.scrim { display: none; }

/* ==========================================================================
   Main column
   ========================================================================== */

.main { min-width: 0; padding: 44px 56px 40px; }
.doc, .pager, .page-foot { max-width: var(--content-w); margin: 0 auto; }

.doc { animation: enter .35s ease both; transition: opacity .15s; }
.doc.leaving { opacity: .35; }
@keyframes enter { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* Typography */
.doc-eyebrow {
  margin: 0 0 10px;
  font: 700 12px/1 var(--font); letter-spacing: .12em; text-transform: uppercase;
  color: var(--red);
  display: flex; align-items: center; gap: 10px;
}
.doc-eyebrow::before { content: ''; width: 18px; height: 2px; background: var(--red); border-radius: 2px; }

.doc h1 {
  font-size: clamp(32px, 4vw, 42px); line-height: 1.12; font-weight: 800;
  letter-spacing: -0.035em; margin: 0 0 18px; color: var(--text);
}
.doc h1 + p { font-size: 18px; line-height: 1.7; color: var(--text-2); }

.doc h2 {
  position: relative;
  font-size: 26px; line-height: 1.25; font-weight: 750; letter-spacing: -0.025em;
  margin: 60px 0 16px; padding-top: 28px;
  border-top: 1px solid var(--border);
}
.doc h3 { font-size: 19px; line-height: 1.35; font-weight: 700; letter-spacing: -0.015em; margin: 38px 0 10px; }
.doc h4 { font-size: 16px; font-weight: 700; margin: 28px 0 8px; }
/* Anchor offset comes from scroll-padding-top on <html>; a scroll-margin here would add to it. */
.doc h2, .doc h3, .doc h4 { color: var(--text); }

.h-anchor {
  margin-left: 10px; font-weight: 500; color: var(--text-4);
  opacity: 0; transition: opacity .15s;
}
h2:hover .h-anchor, h3:hover .h-anchor, h4:hover .h-anchor, .h-anchor:focus { opacity: 1; }
.h-anchor:hover { color: var(--red); }

.doc p, .doc li { color: var(--text-2); }
.doc p { margin: 0 0 18px; }
.doc strong { color: var(--text); font-weight: 650; }
.doc ul, .doc ol { padding-left: 22px; margin: 0 0 20px; }
.doc li { margin: 6px 0; }
.doc li::marker { color: var(--red); }
.doc hr { border: 0; border-top: 1px solid var(--border); margin: 40px 0; }

.doc p a, .doc li a, .doc td a {
  font-weight: 550;
  text-decoration: underline; text-decoration-color: var(--red-line);
  text-underline-offset: 3px; text-decoration-thickness: 1px;
}
.doc p a:hover, .doc li a:hover, .doc td a:hover { text-decoration-color: var(--red); }
a.external::after {
  content: '↗'; font-size: .78em; margin-left: 2px; display: inline-block;
  color: var(--text-4); text-decoration: none;
}

.doc blockquote {
  margin: 0 0 20px; padding: 14px 18px;
  border-left: 3px solid var(--border-strong);
  background: var(--bg-soft); border-radius: 0 10px 10px 0;
}
.doc blockquote p:last-child { margin: 0; }

.doc img { max-width: 100%; border-radius: 10px; }

/* Inline code */
.doc :not(pre) > code {
  font: 500 0.855em/1.4 var(--mono);
  padding: 2px 6px; border-radius: 6px;
  background: var(--inline-bg); color: var(--inline-text);
  border: 1px solid var(--inline-border);
  overflow-wrap: anywhere;
  font-variant-ligatures: none;
}
.doc a > code { color: var(--red); }

/* Tables */
.table-wrap {
  margin: 0 0 24px; overflow-x: auto;
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--elev);
}
.doc table { width: 100%; border-collapse: collapse; font-size: 14.5px; line-height: 1.55; }
.doc th {
  text-align: left; font-weight: 650; font-size: 12.5px; letter-spacing: .03em; text-transform: uppercase;
  color: var(--text-3); background: var(--bg-soft);
  padding: 11px 16px; border-bottom: 1px solid var(--border); white-space: nowrap;
}
.doc td { padding: 11px 16px; border-bottom: 1px solid var(--border); color: var(--text-2); vertical-align: top; }
.doc tr:last-child td { border-bottom: 0; }
.doc tbody tr { transition: background .12s; }
.doc tbody tr:hover { background: var(--red-softer); }
.doc td:first-child code { white-space: nowrap; }

/* Callouts */
.callout {
  position: relative; margin: 0 0 24px; padding: 16px 20px 4px 52px;
  border-radius: var(--radius); border: 1px solid var(--border);
  background: var(--bg-soft);
}
.callout::before {
  content: ''; position: absolute; left: 18px; top: 18px; width: 20px; height: 20px;
  background: var(--text-3);
  -webkit-mask: var(--icon) center / contain no-repeat; mask: var(--icon) center / contain no-repeat;
}
.callout-title { margin: 0 0 6px !important; font-weight: 700; color: var(--text) !important; font-size: 15px; }
.callout p { font-size: 15px; }
.callout p:last-child { margin-bottom: 12px; }

.callout-info {
  --icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cpath d='M12 16v-4M12 8h.01'/%3E%3C/svg%3E");
}
.callout-tip {
  --icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M9 18h6M10 22h4M12 2a7 7 0 0 0-4 12.7c.6.5 1 1.3 1 2.3h6c0-1 .4-1.8 1-2.3A7 7 0 0 0 12 2z'/%3E%3C/svg%3E");
  border-color: var(--red-line); background: var(--red-softer);
}
.callout-tip::before { background: var(--red); }
.callout-warning {
  --icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M10.3 3.9 1.8 18a2 2 0 0 0 1.7 3h17a2 2 0 0 0 1.7-3L13.7 3.9a2 2 0 0 0-3.4 0zM12 9v4M12 17h.01'/%3E%3C/svg%3E");
  border-color: var(--border-strong);
  background:
    repeating-linear-gradient(-45deg, var(--red-softer) 0 10px, transparent 10px 20px),
    var(--bg-soft);
}
.callout-warning::before { background: var(--text); }
.callout-danger {
  --icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M7.9 2h8.2L22 7.9v8.2L16.1 22H7.9L2 16.1V7.9z'/%3E%3Cpath d='M12 8v4M12 16h.01'/%3E%3C/svg%3E");
  border-color: var(--red); background: var(--red-soft);
  box-shadow: inset 4px 0 0 var(--red);
}
.callout-danger::before { background: var(--red); }
.callout-danger .callout-title { color: var(--red) !important; }

/* Code blocks — always dark, in both themes */
.code {
  margin: 0 0 24px; border-radius: var(--radius); overflow: hidden;
  background: var(--code-bg); border: 1px solid var(--code-border);
  box-shadow: var(--shadow-sm);
}
.code-head {
  display: flex; align-items: center; gap: 12px;
  height: 40px; padding: 0 10px 0 14px;
  background: var(--code-head); border-bottom: 1px solid var(--code-border);
  font: 500 12.5px var(--mono); color: #8a8a8a;
}
.code-dots { display: flex; gap: 6px; }
.code-dots i { width: 10px; height: 10px; border-radius: 50%; background: #2c2c2f; }
.code-dots i:first-child { background: #e60000; }
.code-file { color: #e8e8e8; }
.code-note {
  font-size: 11px; color: #8a8a8a; border: 1px solid #2c2c2f; border-radius: 999px; padding: 2px 8px;
}
.code-lang { text-transform: lowercase; }
.code-copy {
  margin-left: auto;
  font: 500 12px var(--font); color: #b5b5b5;
  background: transparent; border: 1px solid #2c2c2f; border-radius: 7px;
  padding: 5px 10px; cursor: pointer; transition: all .15s;
}
.code-copy:hover { color: #fff; border-color: #444; }
.code-copy.done { color: #fff; background: #e60000; border-color: #e60000; }

.doc pre { margin: 0; padding: 18px 20px; overflow-x: auto; scrollbar-width: thin; scrollbar-color: #2c2c2f transparent; }
.doc pre code {
  font: 400 13.5px/1.7 var(--mono); color: #e6e6e6; background: none;
  font-variant-ligatures: none; tab-size: 2;
}

/* Syntax: monochrome with signal-red accents */
.hljs-comment, .hljs-quote { color: #6c6c72; font-style: italic; }
.hljs-keyword, .hljs-selector-tag, .hljs-meta .hljs-keyword { color: #ff4d4d; }
.hljs-built_in, .hljs-type, .hljs-class .hljs-title, .hljs-title.class_ { color: #ffffff; font-weight: 500; }
.hljs-title, .hljs-title.function_, .hljs-section { color: #f2f2f2; }
.hljs-string, .hljs-template-tag, .hljs-template-variable, .hljs-addition { color: #f4b8b8; }
.hljs-number, .hljs-literal, .hljs-symbol, .hljs-bullet { color: #ff8a8a; }
.hljs-regexp, .hljs-link { color: #ff6b6b; }
.hljs-attr, .hljs-attribute, .hljs-property, .hljs-variable, .hljs-params { color: #cfcfd4; }
.hljs-meta, .hljs-doctag { color: #9a9aa0; }
.hljs-punctuation, .hljs-operator { color: #8e8e94; }
.hljs-subst { color: #e6e6e6; }
.hljs-deletion { color: #ff6b6b; }
.hljs-emphasis { font-style: italic; }
.hljs-strong { font-weight: 700; }
.code-shell .hljs-built_in { color: #ff4d4d; font-weight: 500; }

/* Pager & page footer */
.pager {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
  margin-top: 64px;
}
.pager-link {
  display: flex; flex-direction: column; gap: 4px;
  padding: 16px 20px; border-radius: var(--radius);
  border: 1px solid var(--border); background: var(--elev);
  transition: border-color .15s, transform .15s, box-shadow .15s;
}
.pager-link span { font-size: 12.5px; color: var(--text-3); font-weight: 500; }
.pager-link strong { color: var(--text); font-weight: 650; font-size: 16px; }
.pager-link:hover { border-color: var(--red); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.pager-link:hover strong { color: var(--red); }
.pager-link.prev strong::before { content: '← '; color: var(--text-4); }
.pager-link.next { text-align: right; }
.pager-link.next strong::after { content: ' →'; color: var(--text-4); }

.page-foot {
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--border);
  font-size: 13.5px; color: var(--text-3);
}
.page-foot:empty { display: none; }
.edit { display: inline-flex; align-items: center; gap: 8px; color: var(--text-3); font-weight: 500; }
.edit svg { width: 15px; height: 15px; }
.edit:hover { color: var(--red); }

.site-foot {
  display: flex; justify-content: center; gap: 24px; flex-wrap: wrap;
  padding: 28px 20px; border-top: 1px solid var(--border);
  color: var(--text-3); font-size: 13px;
  margin-left: var(--sidebar-w);
}

/* ==========================================================================
   On this page
   ========================================================================== */

.toc {
  position: sticky; top: var(--top); align-self: start;
  height: calc(100vh - var(--top)); overflow-y: auto;
  padding: 44px 24px 24px 8px;
  scrollbar-width: none;
}
.toc:empty { visibility: hidden; }
.toc-title {
  margin: 0 0 12px; font: 700 11.5px/1 var(--font); letter-spacing: .09em; text-transform: uppercase; color: var(--text);
}
.toc ul { position: relative; list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--border); }
.toc li a {
  display: block; padding: 5px 0 5px 14px;
  color: var(--text-3); font-size: 13.5px; line-height: 1.45;
  transition: color .12s;
}
.toc li.toc-h3 a { padding-left: 26px; font-size: 13px; }
.toc li a:hover { color: var(--text); }
.toc li a.active { color: var(--text); font-weight: 600; }
.toc-marker {
  position: absolute; left: -2px; top: 0; width: 3px; height: 0;
  background: var(--red); border-radius: 2px; opacity: 0;
  transition: transform .25s cubic-bezier(.2, .8, .2, 1), height .25s;
}
.toc-top { display: inline-block; margin-top: 18px; font-size: 13px; color: var(--text-3); font-weight: 500; }
.toc-top:hover { color: var(--red); }

/* ==========================================================================
   Search palette
   ========================================================================== */

.palette { position: fixed; inset: 0; z-index: 100; }
.palette[hidden] { display: none; }
.palette-backdrop {
  position: absolute; inset: 0;
  background: rgba(10, 10, 10, 0.45);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  animation: fade .15s ease both;
}
.palette-box {
  position: relative; margin: 11vh auto 0; width: min(660px, calc(100vw - 32px));
  background: var(--elev); border: 1px solid var(--border-strong); border-radius: 16px;
  box-shadow: var(--shadow-lg); overflow: hidden;
  animation: pop .18s cubic-bezier(.2, .9, .3, 1.2) both;
}
@keyframes fade { from { opacity: 0; } }
@keyframes pop { from { opacity: 0; transform: translateY(-8px) scale(.98); } }

.palette-input { display: flex; align-items: center; gap: 12px; padding: 0 16px; border-bottom: 1px solid var(--border); }
.palette-input svg { color: var(--red); width: 20px; height: 20px; }
.palette-input input {
  flex: 1; height: 58px; border: 0; outline: 0; background: none;
  font: 500 17px var(--font); color: var(--text);
}
.palette-input input::-webkit-search-cancel-button { display: none; }

.palette-results { list-style: none; margin: 0; padding: 8px; max-height: min(58vh, 480px); overflow-y: auto; }
.palette-label { padding: 8px 12px 6px; font: 700 11px/1 var(--font); letter-spacing: .09em; text-transform: uppercase; color: var(--text-3); }
.palette-results a {
  display: grid; gap: 2px; padding: 10px 14px; border-radius: 10px;
  color: var(--text); border-left: 3px solid transparent;
}
.palette-results li.sel a, .palette-results a:hover { background: var(--red-soft); border-left-color: var(--red); }
.r-crumb { font-size: 12px; color: var(--text-3); font-weight: 500; }
.r-crumb span { color: var(--text-4); margin: 0 2px; }
.r-title { font-weight: 600; font-size: 15px; }
.r-text { font-size: 13px; color: var(--text-3); line-height: 1.5; }
.palette-results mark { background: none; color: var(--red); font-weight: 700; }
.palette-empty { padding: 28px 16px; text-align: center; color: var(--text-3); font-size: 14px; }
.palette-empty code { font: 500 12.5px var(--mono); background: var(--inline-bg); padding: 2px 6px; border-radius: 5px; }
.palette-foot {
  display: flex; gap: 18px; padding: 10px 16px; border-top: 1px solid var(--border);
  font-size: 12px; color: var(--text-3); background: var(--bg-soft);
}
.palette-foot kbd { margin-right: 3px; }
body.palette-open { overflow: hidden; }

/* Until the first page is rendered the content area stays hidden, so the
   visitor never sees an empty layout that is about to be replaced. */
[data-boot] .main, [data-boot] .toc, [data-boot] #sidebar-nav { visibility: hidden; }

/* ==========================================================================
   Home page
   ========================================================================== */

.is-home .shell { grid-template-columns: minmax(0, 1fr); }
.is-home .sidebar, .is-home .toc { display: none; }
.is-home .site-foot { margin-left: 0; }
.is-home .main { --home-gutter: 32px; padding: 0 var(--home-gutter) 40px; }
.is-home .doc { max-width: 1160px; }
.is-home .pager { display: none; }
.is-home .doc > h2 {
  border: 0; padding: 0; margin: 96px 0 12px;
  font-size: clamp(28px, 3.2vw, 38px); letter-spacing: -0.035em; font-weight: 800; text-align: center;
}
.is-home .doc > h2 + p { text-align: center; margin: 0 auto 32px; max-width: 560px; }
.is-home .doc > .code { max-width: 760px; margin: 0 auto; box-shadow: var(--shadow-md); }
.is-home .h-anchor { display: none; }

/* Hero */
.hero {
  position: relative;
  display: grid; grid-template-columns: 1.5fr 1fr; align-items: center; gap: 32px;
  padding: 88px 0 56px;
}
.hero-bricks {
  position: absolute; inset: 0 calc(-1 * var(--home-gutter)); z-index: -1; pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='72' height='36'%3E%3Cpath d='M0 .5H72M0 18.5H72M.5 0V18M36.5 18V36' stroke='%23e60000' stroke-opacity='.16' fill='none'/%3E%3C/svg%3E");
  -webkit-mask-image: radial-gradient(ellipse 70% 80% at 72% 45%, #000 0%, transparent 70%);
  mask-image: radial-gradient(ellipse 70% 80% at 72% 45%, #000 0%, transparent 70%);
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px 6px 10px; margin-bottom: 22px;
  font: 600 12.5px/1 var(--mono); color: var(--text-2);
  border: 1px solid var(--border-strong); border-radius: 999px; background: var(--elev);
}
.eyebrow .dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--red);
  box-shadow: 0 0 0 0 var(--red-line); animation: pulse 2s infinite;
}
@keyframes pulse { 70% { box-shadow: 0 0 0 8px transparent; } 100% { box-shadow: 0 0 0 0 transparent; } }

.doc .hero-title {
  font-size: clamp(40px, 5.4vw, 66px); line-height: 1.03; font-weight: 800; letter-spacing: -0.045em;
  margin: 0 0 22px;
}
.hero-title em {
  font-style: normal;
  background: linear-gradient(110deg, var(--red-deep) 10%, var(--red-hi) 55%, #ff7070 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.doc .hero-lede { font-size: 19px; line-height: 1.65; color: var(--text-2); max-width: 580px; margin: 0 0 30px; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 22px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  height: 46px; padding: 0 22px; border-radius: 11px;
  font: 600 15px var(--font); transition: all .15s;
}
.btn-primary { background: var(--red); color: #fff; box-shadow: 0 8px 24px -8px var(--red-line); }
.btn-primary:hover { background: var(--red-hi); color: #fff; transform: translateY(-1px); box-shadow: 0 12px 30px -8px var(--red-line); }
.btn-ghost { color: var(--text); border: 1px solid var(--border-strong); background: var(--elev); }
.btn-ghost:hover { color: var(--text); border-color: var(--text-3); }

.install {
  display: inline-flex; align-items: center; gap: 12px;
  height: 46px; padding: 0 8px 0 16px; border-radius: 11px; cursor: pointer;
  background: var(--code-bg); border: 1px solid var(--code-border);
  font: 500 14px var(--mono); color: #eaeaea;
}
.install-prompt { color: #e60000; font-weight: 700; }
.doc .install code { font: inherit; background: none; border: 0; padding: 0; color: inherit; }
.install-hint {
  font: 500 11.5px var(--font); color: #8a8a8a; border: 1px solid #2c2c2f; border-radius: 7px; padding: 5px 9px;
}
.install.done .install-hint { background: #e60000; color: #fff; border-color: #e60000; }
.install.done .install-hint::before { content: '✓ '; }

.hero-art { position: relative; display: grid; place-items: center; }
.hero-art::before {
  content: ''; position: absolute; width: 78%; aspect-ratio: 1; border-radius: 50%;
  background: radial-gradient(circle, var(--red-line) 0%, transparent 65%);
  filter: blur(30px);
}
.hero-art img {
  position: relative; width: min(340px, 80%); height: auto;
  filter: drop-shadow(0 30px 50px rgba(230, 0, 0, .25));
  animation: float 6s ease-in-out infinite;
}
@keyframes float { 50% { transform: translateY(-10px) rotate(-1deg); } }

/* Traffic flow diagram */
.flow {
  margin: 8px 0 0; padding: 22px 26px 18px;
  border: 1px solid var(--border); border-radius: 18px;
  background: var(--elev); box-shadow: var(--shadow-md);
}
.flow-head { position: relative; display: flex; justify-content: space-between; margin-bottom: 10px; }
.flow-label { font: 600 11px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--text-3); }
.flow-label-mid { position: absolute; left: 56%; transform: translateX(-50%); color: var(--red); }

.flow-track {
  position: relative; height: 196px; overflow: hidden;
  container-type: inline-size;
  border-radius: 12px;
  background:
    linear-gradient(var(--border) 1px, transparent 1px) 0 65px / 100% 65px,
    var(--bg-soft);
}
.flow-wall {
  position: absolute; top: 0; bottom: 0; left: 56%; width: 22px; transform: translateX(-50%);
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='22' height='16'%3E%3Crect width='22' height='16' fill='%23e60000'/%3E%3Cpath d='M0 .5H22M0 8.5H22M11.5 0V8M.5 8V16' stroke='%23ffffff' stroke-opacity='.55' fill='none'/%3E%3C/svg%3E");
  box-shadow: 0 0 0 1px rgba(0,0,0,.1), 0 0 40px rgba(230, 0, 0, .45);
  z-index: 2;
}
.flow-wall span {
  position: absolute; inset: 0; background: linear-gradient(transparent, rgba(255,255,255,.35), transparent);
  background-size: 100% 60px; background-repeat: no-repeat;
  animation: scan 2.4s linear infinite;
}
@keyframes scan { from { background-position: 0 -60px; } to { background-position: 0 260px; } }

.packet {
  position: absolute; left: 0; top: calc(var(--lane) * 65px + 17px);
  height: 32px; padding: 0 12px; display: flex; align-items: center; white-space: nowrap;
  font: 500 12.5px/1 var(--mono); color: var(--text-2);
  background: var(--elev); border: 1px solid var(--border-strong); border-radius: 8px;
  box-shadow: var(--shadow-sm);
  opacity: 0;
  animation: 9s linear var(--delay) infinite;
  z-index: 3;
}
.packet.ok { animation-name: pass; }
.packet.bad { animation-name: hit; }
.packet::after {
  position: absolute; right: -8px; top: -9px;
  font: 700 10px/1 var(--mono); padding: 4px 5px; border-radius: 5px;
  opacity: 0; animation: inherit; animation-delay: var(--delay);
}
.packet.bad::after { content: '403'; background: var(--red); color: #fff; animation-name: badge-bad; }
.packet.ok::after { content: '200'; background: var(--text); color: var(--bg); animation-name: badge-ok; }

@keyframes pass {
  0% { transform: translateX(-100%); opacity: 0; }
  4% { opacity: 1; }
  48% { opacity: 1; }
  52% { opacity: .35; }
  58% { opacity: 1; }
  92% { opacity: 1; }
  100% { transform: translateX(100cqw); opacity: 0; }
}
@keyframes hit {
  0% { transform: translateX(-100%); opacity: 0; }
  4% { opacity: 1; }
  44% { transform: translateX(calc(56cqw - 100% - 14px)); color: var(--text-2); border-color: var(--border-strong); }
  46% { transform: translateX(calc(56cqw - 100% - 8px)); color: var(--red); border-color: var(--red); background: var(--red-soft); }
  48% { transform: translateX(calc(56cqw - 100% - 16px)); }
  50% { transform: translateX(calc(56cqw - 100% - 11px)); }
  52% { transform: translateX(calc(56cqw - 100% - 14px)); opacity: 1; color: var(--red); border-color: var(--red); background: var(--red-soft); }
  62% { transform: translateX(calc(56cqw - 100% - 14px)) translateY(6px) scale(.94); opacity: 0; color: var(--red); border-color: var(--red); }
  100% { transform: translateX(calc(56cqw - 100% - 14px)); opacity: 0; }
}
@keyframes badge-bad { 0%, 45% { opacity: 0; transform: scale(.6); } 48%, 58% { opacity: 1; transform: scale(1); } 62%, 100% { opacity: 0; } }
@keyframes badge-ok { 0%, 58% { opacity: 0; transform: scale(.6); } 62%, 92% { opacity: 1; transform: scale(1); } 100% { opacity: 0; } }

.doc .flow-caption { margin: 14px 0 0; text-align: center; font-size: 14px; color: var(--text-3); }

/* Stats */
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  margin: 56px 0 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
}
.stat { padding: 26px 22px; border-left: 1px solid var(--border); }
.stat::before { content: ''; display: block; width: 18px; height: 2px; margin-bottom: 14px; border-radius: 2px; background: var(--red); }
.stat:first-child { border-left: 0; }
.stat strong {
  display: block; font-size: clamp(28px, 3.4vw, 40px); font-weight: 800; letter-spacing: -0.04em; line-height: 1.1;
  color: var(--text);
}
.stat span { font-size: 14px; color: var(--text-3); }
.stat code { font: 500 12.5px var(--mono); background: var(--inline-bg); border: 1px solid var(--inline-border); padding: 1px 5px; border-radius: 5px; }

/* Features */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 96px; }
.feature {
  position: relative; padding: 26px 24px 20px;
  border: 1px solid var(--border); border-radius: 16px; background: var(--elev);
  transition: transform .2s, box-shadow .2s, border-color .2s; overflow: hidden;
}
.feature::before {
  content: ''; position: absolute; inset: 0 0 auto; height: 3px;
  background: linear-gradient(90deg, var(--red-deep), var(--red-hi));
  transform: scaleX(0); transform-origin: left; transition: transform .35s;
}
.feature:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--border-strong); }
.feature:hover::before { transform: scaleX(1); }
.feature-icon {
  display: grid; place-items: center; width: 44px; height: 44px; margin-bottom: 18px;
  border-radius: 12px; background: var(--red-soft); color: var(--red);
}
.feature-icon svg { width: 22px; height: 22px; }
.doc .feature h3 { margin: 0 0 8px; font-size: 17.5px; }
.doc .feature p { margin: 0; font-size: 14.5px; line-height: 1.65; color: var(--text-3); }
.feature code { font: 500 12.5px var(--mono); background: var(--inline-bg); border: 1px solid var(--inline-border); padding: 1px 5px; border-radius: 5px; color: var(--inline-text); }

/* Levels */
.levels {
  max-width: 820px; margin: 0 auto; padding: 8px;
  border: 1px solid var(--border); border-radius: 18px; background: var(--elev); box-shadow: var(--shadow-md);
}
.levels-tabs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 4px; padding: 4px; background: var(--bg-soft); border-radius: 12px; }
.levels-tabs button {
  height: 44px; border: 0; border-radius: 9px; background: none; cursor: pointer;
  font: 600 14.5px var(--mono); color: var(--text-3); transition: all .15s;
}
.levels-tabs button:hover { color: var(--text); }
.levels-tabs button.active { background: var(--elev); color: var(--red); box-shadow: var(--shadow-sm), 0 0 0 1px var(--border); }
.levels-body { display: grid; grid-template-columns: auto 1fr; gap: 6px 28px; align-items: center; padding: 26px 24px 20px; }
.levels-count strong { display: block; font-size: 56px; line-height: 1; font-weight: 800; letter-spacing: -0.05em; color: var(--text); font-variant-numeric: tabular-nums; }
.levels-count span { font-size: 13px; color: var(--text-3); }
.levels-meter { height: 12px; border-radius: 999px; background: var(--bg-sunk); overflow: hidden; }
.levels-fill {
  height: 100%; width: 0; border-radius: inherit;
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='12'%3E%3Cpath d='M0 6.5H24M12.5 0V6M.5 6V12' stroke='%23ffffff' stroke-opacity='.35' fill='none'/%3E%3C/svg%3E"),
    linear-gradient(90deg, var(--red-deep), var(--red-hi));
  transition: width .5s cubic-bezier(.2, .8, .2, 1);
}
.levels[data-active="paranoid"] .levels-fill { box-shadow: 0 0 20px var(--red-line); }
.doc .levels-desc { grid-column: 1 / -1; margin: 16px 0 6px; font-size: 15.5px; color: var(--text-2); min-height: 3.2em; }
.levels-link { grid-column: 1 / -1; font-weight: 600; font-size: 14.5px; }

/* Frameworks */
.frameworks { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.fw {
  display: grid; grid-template-columns: auto 1fr; grid-template-rows: auto auto; column-gap: 14px; align-items: center;
  padding: 16px 18px; border: 1px solid var(--border); border-radius: 14px; background: var(--elev);
  color: var(--text); transition: all .18s;
}
.fw:hover { border-color: var(--red); color: var(--text); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.fw-mono {
  grid-row: 1 / 3; display: grid; place-items: center; width: 44px; height: 44px; border-radius: 11px;
  background: var(--code-bg); color: #ff1a1a; font: 700 15px var(--mono); letter-spacing: -0.02em;
  border: 1px solid var(--code-border);
}
.fw:hover .fw-mono { background: var(--red); color: #fff; border-color: var(--red); }
/* Logos render as white silhouettes so every brand sits in the same palette. */
.fw-mono img { width: 22px; height: 22px; object-fit: contain; filter: brightness(0) invert(1); opacity: .92; transition: transform .2s; }
.fw-mono img.wide { width: 34px; height: 30px; }
.fw-mono svg { width: 20px; height: 20px; color: #fff; }
.fw:hover .fw-mono img { opacity: 1; transform: scale(1.08); }
.fw-name { font-weight: 650; font-size: 15.5px; }
.fw-tag { font: 500 11.5px var(--mono); color: var(--text-3); }

/* CTA */
.cta {
  position: relative; margin: 110px 0 20px; padding: 64px 32px; text-align: center; overflow: hidden;
  border-radius: 22px; background: #0a0a0a; color: #f2f2f2;
  border: 1px solid #1d1d1f;
}
.cta::before {
  content: ''; position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='72' height='36'%3E%3Cpath d='M0 .5H72M0 18.5H72M.5 0V18M36.5 18V36' stroke='%23ff1a1a' stroke-opacity='.22' fill='none'/%3E%3C/svg%3E");
  -webkit-mask-image: radial-gradient(ellipse at center, #000, transparent 75%);
  mask-image: radial-gradient(ellipse at center, #000, transparent 75%);
}
.cta > * { position: relative; }
.doc .cta h2 { margin: 0 0 10px; padding: 0; border: 0; color: #fff; font-size: clamp(28px, 3.6vw, 40px); font-weight: 800; letter-spacing: -0.035em; }
.doc .cta p { color: #b5b5b5; margin: 0 0 28px; }
.cta code { font: 500 .9em var(--mono); background: #1a1a1a; border: 1px solid #2a2a2a; padding: 2px 6px; border-radius: 6px; color: #fff; }
.cta .hero-actions { justify-content: center; margin: 0; }
.cta .btn-ghost { background: transparent; color: #fff; border-color: #333; }
.cta .btn-ghost:hover { border-color: #777; }

/* 404 */
.notfound { padding: 60px 0; }

/* ==========================================================================
   Ripple (drawn by app.js in an overlay sized to the clicked element)
   ========================================================================== */

.ripple-layer { z-index: 200; overflow: hidden; pointer-events: none; }
.ripple {
  position: absolute; border-radius: 50%;
  background: currentColor; opacity: 0; transform: scale(0);
  animation: ripple .6s cubic-bezier(.2, .7, .3, 1) forwards;
}
@keyframes ripple {
  0% { transform: scale(0); opacity: .22; }
  55% { opacity: .16; }
  100% { transform: scale(1); opacity: 0; }
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 1240px) {
  .shell { grid-template-columns: var(--sidebar-w) minmax(0, 1fr); }
  .toc { display: none; }
  .main { padding: 40px 44px; }
}

@media (max-width: 960px) {
  .menu-btn { display: inline-grid; }
  .topnav { display: none; }
  .search-trigger { width: 40px; padding: 0; justify-content: center; }
  .search-trigger span, .search-trigger kbd { display: none; }
  .version { display: none; }

  .shell { grid-template-columns: minmax(0, 1fr); }
  .sidebar {
    position: fixed; top: var(--top); left: 0; bottom: 0; height: auto; width: min(300px, 86vw); z-index: 45;
    transform: translateX(-102%); transition: transform .25s cubic-bezier(.2, .8, .2, 1);
    box-shadow: var(--shadow-lg);
  }
  body.menu-open .sidebar { transform: none; }
  body.menu-open .scrim { display: block; position: fixed; inset: var(--top) 0 0; z-index: 44; background: rgba(0,0,0,.4); }
  .is-home .sidebar { display: flex; }
  .site-foot { margin-left: 0; }
  .main { padding: 32px 22px; }
  .is-home .main { --home-gutter: 20px; padding: 0 var(--home-gutter) 32px; }

  .hero { grid-template-columns: 1fr; padding-top: 48px; gap: 8px; text-align: left; }
  .hero-art { order: -1; justify-items: start; }
  .hero-art img { width: 132px; }
  .hero-art::before { width: 200px; }
  .features { grid-template-columns: 1fr 1fr; }
  .frameworks { grid-template-columns: 1fr 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .stat:nth-child(3) { border-left: 0; }
  .stat:nth-child(n+3) { border-top: 1px solid var(--border); }
  .flow-label-mid { left: 56%; }
}

@media (max-width: 600px) {
  .features, .frameworks { grid-template-columns: 1fr; }
  .levels-tabs button { font-size: 12.5px; }
  .levels-body { grid-template-columns: 1fr; }
  .pager { grid-template-columns: 1fr; }
  .packet { font-size: 11px; height: 28px; padding: 0 9px; }
  .doc h2 { font-size: 23px; }
  .palette-foot span:last-child { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .packet { opacity: 1; animation: none !important; position: static; display: inline-flex; margin: 6px; }
  .packet::after { display: none; }
  .flow-track { height: auto; padding: 10px; }
  .flow-wall { display: none; }
}