/* Quirewright project site. Palette: oxblood, parchment, brass. */
:root {
  --ox: #7a1f2b; --ox-deep: #5e1620; --ox-soft: rgba(122, 31, 43, 0.10);
  --brass: #b8862b; --brass-soft: #f1e3bf;
  --paper: #fbf8f1; --paper-2: #f3ecdd; --card: #ffffff;
  --ink: #221c18; --ink-2: #4f4640; --muted: #7b716a; --line: #e4dccb;
  --code-bg: #f1ebdf; --shadow: 0 18px 50px rgba(60, 30, 20, 0.16), 0 2px 6px rgba(60, 30, 20, 0.08);
  --show-light: block; --show-dark: none;
  --radius: 14px; --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --serif: "Fraunces", "Iowan Old Style", Georgia, serif; --mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ox: #d0505f; --ox-deep: #a93a48; --ox-soft: rgba(208, 80, 95, 0.16);
    --brass: #d9b15a; --brass-soft: #3a3020;
    --paper: #171311; --paper-2: #1f1a17; --card: #241e1b;
    --ink: #efe7da; --ink-2: #cfc4b4; --muted: #978c80; --line: #352d28;
    --code-bg: #2a2320; --shadow: 0 18px 50px rgba(0, 0, 0, 0.5), 0 2px 6px rgba(0, 0, 0, 0.4);
    --show-light: none; --show-dark: block;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --ox: #d0505f; --ox-deep: #a93a48; --ox-soft: rgba(208, 80, 95, 0.16);
  --brass: #d9b15a; --brass-soft: #3a3020;
  --paper: #171311; --paper-2: #1f1a17; --card: #241e1b;
  --ink: #efe7da; --ink-2: #cfc4b4; --muted: #978c80; --line: #352d28;
  --code-bg: #2a2320; --shadow: 0 18px 50px rgba(0, 0, 0, 0.5), 0 2px 6px rgba(0, 0, 0, 0.4);
  --show-light: none; --show-dark: block;
  color-scheme: dark;
}
.img-light { display: var(--show-light); }
.img-dark { display: var(--show-dark); }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); font-size: 16px; line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { color: var(--ox); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
img { max-width: 100%; height: auto; display: block; }
h1, h2, h3, h4 { font-family: var(--serif); font-weight: 600; line-height: 1.15; letter-spacing: -0.01em; margin: 0 0 0.5em; color: var(--ink); }
h1 { font-size: clamp(2.3rem, 5vw, 3.6rem); font-variation-settings: "opsz" 144, "SOFT" 40; }
h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1em; }
code, pre, kbd { font-family: var(--mono); font-size: 0.92em; }
code { background: var(--code-bg); padding: 0.1em 0.4em; border-radius: 5px; }
pre { background: var(--code-bg); border: 1px solid var(--line); border-radius: 10px; padding: 14px 18px; overflow-x: auto; margin: 0 0 1.2em; line-height: 1.5; }
pre code { background: none; padding: 0; }
kbd { background: var(--card); border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 5px; padding: 0.05em 0.45em; font-size: 0.85em; }
.wrap { width: min(1120px, calc(100% - 48px)); margin: 0 auto; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 16px; background: var(--card); padding: 8px 12px; z-index: 10; }

/* nav */
.nav { position: sticky; top: 0; z-index: 5; backdrop-filter: blur(12px); background: color-mix(in srgb, var(--paper) 84%, transparent); border-bottom: 1px solid var(--line); }
.nav .wrap { display: flex; align-items: center; gap: 28px; height: 64px; }
.brand { display: flex; align-items: center; gap: 12px; color: var(--ink); font-family: var(--serif); font-weight: 600; font-size: 1.25rem; }
.brand:hover { text-decoration: none; }
.brand img { width: 34px; height: 34px; }
.nav-links { display: flex; gap: 22px; margin-left: auto; align-items: center; }
.nav-links a { color: var(--ink-2); font-weight: 500; font-size: 0.95rem; }
.nav-links a:hover { color: var(--ox); text-decoration: none; }
.theme-btn { border: 1px solid var(--line); background: var(--card); color: var(--ink-2); border-radius: 999px; width: 36px; height: 36px; cursor: pointer; display: grid; place-items: center; }
.theme-btn svg { width: 18px; height: 18px; }
.theme-btn:hover { border-color: var(--ox); color: var(--ox); }
.nav-toggle { display: none; }

/* hero */
.hero { padding: 72px 0 40px; position: relative; overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: -40% -20% auto; height: 120%; background: radial-gradient(60% 50% at 70% 20%, var(--ox-soft), transparent 70%); pointer-events: none; }
.hero .wrap { position: relative; display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 56px; align-items: center; }
.eyebrow { display: inline-flex; gap: 10px; align-items: center; font-size: 0.8rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ox); margin-bottom: 18px; }
.eyebrow::before { content: ""; width: 26px; height: 2px; background: var(--brass); }
.lede { font-size: 1.15rem; color: var(--ink-2); max-width: 46ch; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 26px 0 14px; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 11px 20px; border-radius: 10px; font-weight: 600; border: 1px solid transparent; transition: transform .12s ease, box-shadow .12s ease; }
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--ox); color: #fff; box-shadow: 0 6px 18px rgba(122, 31, 43, 0.28); }
.btn-primary:hover { background: var(--ox-deep); }
.btn-ghost { background: var(--card); color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--ox); color: var(--ox); }
.btn svg { width: 18px; height: 18px; }
.fine { color: var(--muted); font-size: 0.88rem; }
.shot { border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid var(--line); overflow: hidden; background: var(--card); }
.shot img { width: 100%; }
.hero .shot { transform: perspective(1600px) rotateY(-4deg) rotateX(1deg); }

/* stats strip */
.strip { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--paper-2); }
.strip .wrap { display: flex; flex-wrap: wrap; gap: 8px 36px; padding: 16px 0; color: var(--ink-2); font-size: 0.95rem; }
.strip span strong { color: var(--ink); font-weight: 600; }

/* warning banner */
.warning { background: #fdecec; border: 1px solid #e05a5a; border-left: 5px solid #c62828; color: #5a1414; border-radius: 10px; padding: 16px 20px; margin: 0 0 36px; line-height: 1.55; }
.warning a { color: #8e1b1b; text-decoration: underline; }
:root[data-theme="dark"] .warning { background: #3a1a1a; border-color: #b84a4a; border-left-color: #e05a5a; color: #f6d9d9; }
:root[data-theme="dark"] .warning a { color: #f3a3a3; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .warning { background: #3a1a1a; border-color: #b84a4a; border-left-color: #e05a5a; color: #f6d9d9; }
  :root:not([data-theme="light"]) .warning a { color: #f3a3a3; }
}
.download { padding-top: 48px; border-top: 0; }
.download .grid { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }

/* sections */
section { padding: 72px 0; }
.section-head { max-width: 62ch; margin-bottom: 36px; }
.section-head p { color: var(--ink-2); font-size: 1.05rem; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid > * { min-width: 0; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; transition: border-color .15s, transform .15s; }
.card:hover { border-color: var(--brass); transform: translateY(-2px); }
.card .icon { width: 42px; height: 42px; border-radius: 11px; background: var(--ox-soft); color: var(--ox); display: grid; place-items: center; margin-bottom: 16px; }
.card .icon svg { width: 22px; height: 22px; }
.card h3 { margin-bottom: 8px; }
.card p { color: var(--ink-2); margin: 0; font-size: 0.97rem; }

.feature > * { min-width: 0; }
.feature { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; padding: 36px 0; }
.feature:nth-child(even) .copy { order: 2; }
.feature h3 { font-size: 1.6rem; }
.feature ul { padding-left: 1.1em; color: var(--ink-2); }
.feature li { margin: 6px 0; }

.install { background: var(--paper-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.install .grid { align-items: start; }
.install .card h3 { display: flex; align-items: center; gap: 10px; }
.install .card pre { margin: 12px 0 0; font-size: 0.85rem; }
.install .card p { margin-top: 8px; }

.about { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.about blockquote { margin: 0; padding: 20px 24px; border-left: 3px solid var(--brass); background: var(--card); border-radius: 0 var(--radius) var(--radius) 0; font-family: var(--serif); font-size: 1.15rem; color: var(--ink); }

footer { border-top: 1px solid var(--line); padding: 36px 0 48px; color: var(--muted); font-size: 0.9rem; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 16px 32px; justify-content: space-between; align-items: center; }
footer a { color: var(--ink-2); }

/* docs layout */
.doc { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: 56px; padding: 48px 0 80px; }
.toc { position: sticky; top: 88px; align-self: start; max-height: calc(100vh - 110px); overflow: auto; font-size: 0.9rem; }
.toc .toc-title { font-weight: 600; text-transform: uppercase; letter-spacing: .08em; font-size: .75rem; color: var(--muted); margin-bottom: 10px; }
.toc ul { list-style: none; margin: 0; padding: 0; }
.toc ul ul { padding-left: 14px; }
.toc a { display: block; padding: 4px 10px; color: var(--ink-2); border-left: 2px solid var(--line); border-radius: 0 6px 6px 0; }
.toc a:hover, .toc a.active { color: var(--ox); border-left-color: var(--ox); background: var(--ox-soft); text-decoration: none; }
.prose { max-width: 76ch; }
.prose h1 { font-size: 2.6rem; margin-bottom: .3em; }
.prose h2 { margin-top: 2em; padding-bottom: .25em; border-bottom: 1px solid var(--line); scroll-margin-top: 84px; }
.prose h3 { margin-top: 1.6em; color: var(--ox); scroll-margin-top: 84px; }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose li { margin: .3em 0; }
.prose table { border-collapse: collapse; width: 100%; margin: 1em 0 1.5em; font-size: .95rem; display: block; overflow-x: auto; }
.prose th, .prose td { text-align: left; padding: 8px 12px; border: 1px solid var(--line); vertical-align: top; }
.prose th { background: var(--paper-2); font-weight: 600; }
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 2em 0; }
.prose .check { color: var(--ox); font-weight: 700; margin-right: 6px; }
.prose .todo { color: var(--muted); margin-right: 6px; }
.prose img { border-radius: 10px; border: 1px solid var(--line); }
.doc-meta { color: var(--muted); font-size: .9rem; margin-bottom: 2em; }

@media (max-width: 960px) {
  .hero .wrap, .feature, .about, .doc { grid-template-columns: 1fr; }
  .feature:nth-child(even) .copy { order: 0; }
  .hero .shot { transform: none; }
  .grid { grid-template-columns: 1fr 1fr; }
  .toc { position: static; max-height: none; border: 1px solid var(--line); border-radius: 10px; padding: 14px; background: var(--card); }
}
@media (max-width: 640px) {
  .grid { grid-template-columns: 1fr; }
  .nav-links { display: none; position: absolute; left: 0; right: 0; top: 64px; flex-direction: column; align-items: stretch; gap: 0; background: var(--paper); border-bottom: 1px solid var(--line); padding: 8px 24px 14px; }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 10px 0; }
  .nav-toggle { display: grid; margin-left: auto; }
  .nav-toggle + .theme-btn { margin-left: 0; }
  .hero { padding-top: 40px; }
}