/* swarmint site styles — shared by index.html and docs.html.
   One source of truth for design tokens, base, components, and interactions. */

:root {
  --bg: #ffffff; --fg: #14181f; --muted: #5a6472; --line: #e6e8ec;
  --card: #f7f8fa; --accent: #3b6ef5; --accent-fg: #ffffff; --code-bg: #0f1424; --code-fg: #d6e0ff;
  --ok: #1a8f5a;
  --maxw: 960px;
  --radius: 12px;
  --nav-h: 52px;
  --shadow-sm: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .10);
  --shadow-md: 0 4px 12px rgba(16, 24, 40, .10), 0 2px 6px rgba(16, 24, 40, .08);
  --nav-bg: rgba(255, 255, 255, .72);
  --ease: cubic-bezier(.2, .7, .2, 1);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1020; --fg: #e8ecf4; --muted: #99a3b5; --line: #222a3d;
    --card: #121a2e; --accent: #6a93ff; --accent-fg: #0b1020; --code-bg: #060a16; --code-fg: #cdd8ff;
    --ok: #46d38a;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);
    --shadow-md: 0 6px 20px rgba(0, 0, 0, .4);
    --nav-bg: rgba(11, 16, 32, .72);
  }
}
:root[data-theme="light"] {
  --bg:#fff; --fg:#14181f; --muted:#5a6472; --line:#e6e8ec; --card:#f7f8fa;
  --accent:#3b6ef5; --accent-fg:#fff; --code-bg:#0f1424; --code-fg:#d6e0ff; --ok:#1a8f5a;
  --shadow-sm: 0 1px 2px rgba(16,24,40,.06), 0 1px 3px rgba(16,24,40,.10);
  --shadow-md: 0 4px 12px rgba(16,24,40,.10), 0 2px 6px rgba(16,24,40,.08);
  --nav-bg: rgba(255,255,255,.72);
}
:root[data-theme="dark"] {
  --bg:#0b1020; --fg:#e8ecf4; --muted:#99a3b5; --line:#222a3d; --card:#121a2e;
  --accent:#6a93ff; --accent-fg:#0b1020; --code-bg:#060a16; --code-fg:#cdd8ff; --ok:#46d38a;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.3);
  --shadow-md: 0 6px 20px rgba(0,0,0,.4);
  --nav-bg: rgba(11,16,32,.72);
}

* { box-sizing: border-box; }
/* Kill the grey/blue tap-highlight box mobile browsers draw over links/buttons. */
html { -webkit-tap-highlight-color: transparent; }
a, button, summary, .btn, .card, .trio .t, #theme-toggle { -webkit-tap-highlight-color: transparent; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 16px); }
body { overflow-wrap: break-word; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
code, pre { font-family: "SF Mono", ui-monospace, Menlo, Consolas, monospace; }
.icon { width: 1em; height: 1em; display: inline-block; vertical-align: -0.125em; fill: currentColor; flex: none; }

/* ---- sticky top nav ---- */
.nav {
  position: sticky; top: 0; z-index: 30;
  height: var(--nav-h); display: flex; align-items: center;
  background: var(--nav-bg); backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav .wrap { display: flex; align-items: center; gap: 18px; width: 100%; }
.nav .brand { font-weight: 700; letter-spacing: -.01em; color: var(--fg); font-size: 16px; margin-right: auto; display: inline-flex; align-items: center; gap: 8px; }
.nav .brand .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 22%, transparent); }
.nav a.navlink { color: var(--muted); font-size: 14.5px; font-weight: 500; transition: color .15s var(--ease); }
.nav a.navlink:hover { color: var(--fg); text-decoration: none; }
.nav .spacer { flex: 1; }
@media (max-width: 620px) { .nav a.navlink.hide-sm { display: none; } }

/* ---- buttons ---- */
.btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 20px; border-radius: 10px; font-weight: 600; font-size: 15px;
  border: 1px solid var(--line); cursor: pointer; background: transparent; color: var(--fg);
  transition: transform .12s var(--ease), box-shadow .18s var(--ease),
              border-color .18s var(--ease), background .18s var(--ease), filter .18s var(--ease);
  will-change: transform;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn.primary { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); box-shadow: var(--shadow-sm); }
.btn.primary:hover { filter: brightness(1.06); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn.ghost:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.btn .arrow { transition: transform .18s var(--ease); }
.btn:hover .arrow { transform: translateX(3px); }
@media (prefers-reduced-motion: reduce) {
  .btn, .btn .arrow { transition: none; }
  .btn:hover, .btn:active { transform: none; }
}

/* ---- hero ---- */
header.hero {
  position: relative; overflow: hidden;
  text-align: center; padding: 72px 20px 56px;
  background: radial-gradient(1200px 400px at 50% -80px, color-mix(in srgb, var(--accent) 18%, transparent), transparent);
  border-bottom: 1px solid var(--line);
}
#swarm {
  position: absolute; inset: 0; width: 100%; height: 100%;
  z-index: 0; pointer-events: none;
  -webkit-mask-image: linear-gradient(to bottom, #000 55%, transparent);
          mask-image: linear-gradient(to bottom, #000 55%, transparent);
}
header.hero .wrap { position: relative; z-index: 1; }
.mark { font-size: 15px; letter-spacing: .28em; text-transform: uppercase; color: var(--accent); font-weight: 700; }
h1 { font-size: clamp(30px, 6vw, 52px); line-height: 1.1; margin: 14px 0 10px; letter-spacing: -.02em; }
.tag { font-size: clamp(16px, 2.6vw, 21px); color: var(--fg); max-width: 640px; margin: 0 auto 8px; font-weight: 500; }
.sub { color: var(--muted); max-width: 620px; margin: 0 auto 26px; }
.badges { color: var(--muted); font-size: 13.5px; margin-top: 22px; }
.badges b { color: var(--fg); font-weight: 600; }

/* ---- sections & typography ---- */
section { padding: 54px 0; border-bottom: 1px solid var(--line); }
h2 { font-size: clamp(22px, 4vw, 30px); letter-spacing: -.01em; margin: 0 0 8px; }
.lead { color: var(--muted); max-width: 720px; margin: 0 0 26px; }

.trio { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.trio .t { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px;
           transition: transform .18s var(--ease), box-shadow .18s var(--ease), border-color .18s var(--ease); }
.trio .t:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: color-mix(in srgb, var(--accent) 40%, var(--line)); }
.trio .t b { display: block; font-size: 16px; margin-bottom: 4px; }
.trio .t span { color: var(--muted); font-size: 14.5px; }

table { width: 100%; border-collapse: collapse; font-size: 15px; overflow: hidden; }
.tablewrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); }
th, td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--line); white-space: nowrap; }
th { color: var(--muted); font-weight: 600; font-size: 13px; text-transform: uppercase; letter-spacing: .04em; }
tbody tr { transition: background .15s var(--ease); }
tbody tr:hover { background: color-mix(in srgb, var(--accent) 6%, transparent); }
tr:last-child td { border-bottom: none; }
td.win { color: var(--ok); font-weight: 700; }
.note { color: var(--muted); font-size: 13.5px; margin-top: 12px; }

.grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px;
        transition: transform .18s var(--ease), box-shadow .18s var(--ease), border-color .18s var(--ease); }
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: color-mix(in srgb, var(--accent) 40%, var(--line)); }
.card h3 { margin: 0 0 6px; font-size: 17px; }
.card p { margin: 0; color: var(--muted); font-size: 14.5px; }

/* ---- code blocks with copy button ---- */
.codeblock { position: relative; }
pre {
  background: var(--code-bg); color: var(--code-fg); padding: 18px 20px; border-radius: var(--radius);
  overflow-x: auto; font-size: 13.5px; line-height: 1.7; margin: 0;
}
pre .c { color: #7f8cad; }
.copybtn {
  position: absolute; top: 10px; right: 10px;
  display: inline-flex; align-items: center; gap: 6px;
  background: color-mix(in srgb, var(--code-fg) 10%, transparent); color: var(--code-fg);
  border: 1px solid color-mix(in srgb, var(--code-fg) 22%, transparent); border-radius: 8px;
  padding: 5px 10px; font-size: 12px; cursor: pointer; opacity: 0; transition: opacity .15s var(--ease), background .15s var(--ease);
}
.codeblock:hover .copybtn, .copybtn:focus-visible { opacity: 1; }
.copybtn:hover { background: color-mix(in srgb, var(--code-fg) 20%, transparent); }
.copybtn.copied { color: var(--ok); border-color: var(--ok); }
@media (hover: none) { .copybtn { opacity: 1; } }

/* ---- footer ---- */
footer { padding: 40px 0 60px; color: var(--muted); font-size: 14px; text-align: center; }
footer a { color: var(--muted); }
footer a:hover { color: var(--fg); }
footer .strong { color: var(--fg); }

/* ---- theme toggle (lives in the nav) ---- */
#theme-toggle {
  background: transparent; color: var(--fg); border: 1px solid var(--line);
  border-radius: 999px; padding: 6px 12px; cursor: pointer;
  font: 13px/1 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  display: inline-flex; align-items: center; gap: 6px; user-select: none;
  transition: border-color .15s var(--ease), background .15s var(--ease);
}
#theme-toggle:hover { border-color: var(--accent); background: var(--card); }

/* ---- scroll reveal ---- */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .5s var(--ease), transform .5s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

/* ---- docs page ---- */
.doc-layout { display: grid; grid-template-columns: 220px 1fr; gap: 40px; align-items: start; }
/* Grid/flex children default to min-width:auto and refuse to shrink below their
   content's intrinsic width — a wide <pre> then forces horizontal page scroll on
   mobile. min-width:0 lets the column shrink so the <pre>'s own overflow-x scrolls. */
.doc-layout > * { min-width: 0; }
.doc pre { max-width: 100%; }
.doc-toc { position: sticky; top: calc(var(--nav-h) + 24px); font-size: 14px; }
.doc-toc h4 { margin: 0 0 10px; font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.doc-toc a { display: block; color: var(--muted); padding: 4px 0; border-left: 2px solid transparent; padding-left: 12px; margin-left: -2px; transition: color .15s var(--ease), border-color .15s var(--ease); }
.doc-toc a:hover, .doc-toc a.active { color: var(--fg); border-left-color: var(--accent); text-decoration: none; }
.doc h2 { margin-top: 8px; scroll-margin-top: calc(var(--nav-h) + 16px); }
.doc h3 { margin: 30px 0 6px; font-size: 18px; scroll-margin-top: calc(var(--nav-h) + 16px); }
.doc p, .doc li { color: var(--fg); }
.doc p { margin: 10px 0; }
.doc ul { padding-left: 20px; }
.doc li { margin: 6px 0; }
.doc :not(pre) > code { background: var(--card); border: 1px solid var(--line); border-radius: 6px; padding: 1px 6px; font-size: 13px; }
.doc .anchor { color: var(--muted); opacity: 0; margin-left: 8px; font-weight: 400; text-decoration: none; }
.doc h2:hover .anchor, .doc h3:hover .anchor { opacity: 1; }
.callout { background: var(--card); border: 1px solid var(--line); border-left: 3px solid var(--accent); border-radius: 8px; padding: 14px 16px; margin: 18px 0; color: var(--muted); font-size: 14.5px; }
.callout b { color: var(--fg); }
.faq details { border: 1px solid var(--line); border-radius: 10px; padding: 0 16px; margin: 10px 0; background: var(--card); }
.faq summary { cursor: pointer; font-weight: 600; padding: 14px 0; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--muted); font-size: 20px; transition: transform .2s var(--ease); }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { margin: 0 0 14px; color: var(--muted); }

@media (max-width: 820px) { .doc-layout { grid-template-columns: 1fr; gap: 0; } .doc-toc { display: none; } }
@media (max-width: 680px) { .trio, .grid { grid-template-columns: 1fr; } }
/* Small screens: tighten the nav so brand + links + toggle fit one line. */
@media (max-width: 620px) {
  .nav .wrap { gap: 12px; }
  .nav .brand { font-size: 15px; }
  .nav a.navlink { font-size: 14px; }
  #theme-toggle { padding: 6px 10px; }
}
@media (max-width: 400px) {
  .nav .wrap { gap: 10px; padding: 0 14px; }
  #theme-toggle { padding: 5px 8px; font-size: 12px; }
}