/* The landing page. Built from the Sifty design system: tokens.css holds its tokens and
   components.css its component classes (sf-*, sifty-*). Only page layout lives here. */

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 15px/24px var(--font-sans);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
h1, h2, h3, p, ul, ol, dl, dd, figure { margin: 0; }

.skip {
  position: absolute; left: var(--space-4); top: -48px; z-index: 10;
  padding: var(--space-2) var(--space-3); border-radius: var(--radius-sm);
  background: var(--inverse); color: var(--on-inverse); text-decoration: none;
}
.skip:focus { top: var(--space-2); }

.wrap { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 var(--space-6); }
@media (max-width: 640px) { .wrap { padding: 0 var(--space-4); } }

/* ---------- type (the design system's Display and Interface styles) ---------- */
.display-xl, .display { font-family: var(--font-serif); font-weight: 400; }
.display-xl { font-size: 72px; line-height: 72px; letter-spacing: -0.02em; }
.display { font-size: 44px; line-height: 48px; letter-spacing: -0.015em; }
.display-xl em, .display em { font-style: italic; }
.lead { font-size: 17px; line-height: 26px; color: var(--ink-muted); }
.heading { font: 600 14px/20px var(--font-sans); }
.eyebrow { margin-bottom: var(--space-3); font: 500 11px/16px var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-muted); }
@media (max-width: 640px) {
  .display-xl { font-size: 48px; line-height: 50px; }
  .display { font-size: 34px; line-height: 38px; }
}

/* ---------- buttons: sf-btn from the system, a larger size for the page ---------- */
.btn-lg { height: 44px; padding: 0 var(--space-4); font-size: 15px; text-decoration: none; }
.sf-btn { text-decoration: none; }
/* on an ultramarine band: paper fill, ink text */
.btn-paper { background: var(--on-ultramarine); color: var(--on-chartreuse); }
.btn-paper:hover { background: var(--chartreuse); }
.btn-paper:focus-visible { outline-color: var(--chartreuse); }

/* ---------- header ---------- */
.site-head { position: sticky; top: 0; z-index: 5; background: var(--paper); border-bottom: 1px solid var(--line); }
.site-head-in { display: flex; align-items: center; gap: var(--space-6); height: 64px; }
.lockup { display: flex; flex: none; }
.lockup img { display: block; height: 32px; width: auto; }
.site-nav { display: flex; gap: var(--space-6); margin-left: auto; }
.site-nav a { font: 500 13px/18px var(--font-sans); color: var(--ink-muted); text-decoration: none; }
.site-nav a:hover { color: var(--accent-ink); }
@media (max-width: 760px) {
  .site-nav { display: none; }
  .head-cta { margin-left: auto; }
}

/* ---------- hero ---------- */
.hero { padding: var(--space-20) 0; }
.hero-in { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: var(--space-12); align-items: center; }
.hero-words { display: flex; flex-direction: column; gap: var(--space-6); }
.hero-words .lead { max-width: 30em; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-3); }
.hero-note { font-size: 12px; line-height: 16px; color: var(--ink-muted); }
.hero-art { position: relative; overflow: hidden; border-radius: var(--radius-lg); background: var(--ultramarine); aspect-ratio: 4 / 3; }
.hero-art img { display: block; width: 100%; height: 100%; object-fit: cover; }
.hero-art figcaption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: var(--space-12) var(--space-4) var(--space-3);
  font: italic 400 24px/28px var(--font-serif); color: var(--on-ultramarine);
  background: linear-gradient(to bottom, rgba(11, 18, 80, 0), rgba(11, 18, 80, 0.62));
}
@media (max-width: 900px) {
  .hero { padding: var(--space-12) 0; }
  .hero-in { grid-template-columns: minmax(0, 1fr); gap: var(--space-8); }
}

/* ---------- sections ---------- */
.section, .band { padding: var(--space-20) 0; }
.band { background: var(--paper-raised); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { display: flex; flex-direction: column; gap: var(--space-4); max-width: 36em; margin-bottom: var(--space-12); }
@media (max-width: 640px) { .section, .band { padding: var(--space-12) 0; } .section-head { margin-bottom: var(--space-8); } }

.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: var(--space-12); align-items: center; }
.split-even { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
.split-words { display: flex; flex-direction: column; gap: var(--space-4); }
@media (max-width: 900px) { .split, .split-even { grid-template-columns: minmax(0, 1fr); gap: var(--space-8); } }

.facts { display: flex; flex-direction: column; gap: var(--space-3); padding: 0; margin-top: var(--space-2); list-style: none; }
.facts li { padding-left: var(--space-4); border-left: 1px solid var(--line-strong); color: var(--ink-muted); }
.facts b { font-weight: 600; color: var(--ink); }

/* ---------- example feed: a slice of new Reddit with the real sifty- tags and bars ---------- */
.feed {
  --rd-surface: #ffffff; --rd-ink: #0f1a1c; --rd-meta: #576f76; --rd-pill: #e5ebee; --rd-line: #0000001a; --rd-link: #0a449b;
  display: flex; flex-direction: column; gap: var(--space-1); padding: var(--space-2) var(--space-3);
  border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--rd-surface); color: var(--rd-ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
@media (prefers-color-scheme: dark) {
  .feed { --rd-surface: #0e1113; --rd-ink: #eef1f3; --rd-meta: #8ba2ad; --rd-pill: #2a3236; --rd-line: #ffffff1a; --rd-link: #7ab3ff; }
}
.post { padding: var(--space-2) var(--space-2) var(--space-3); border-bottom: 1px solid var(--rd-line); }
.post:last-child { border-bottom: 0; }
.post-meta { display: flex; align-items: center; gap: 6px; font-size: 12px; line-height: 20px; color: var(--rd-meta); }
.post-meta b { font-weight: 600; color: var(--rd-ink); }
.post-dot { margin: 0 -2px; }
.post-icon { flex: none; width: 24px; height: 24px; border-radius: 50%; background-size: cover; }
.ic-tech { background: radial-gradient(circle at 35% 40%, #9ad1f5 0 30%, #3d8bd9 31% 60%, #1e5aa8 61%); }
.ic-linux { background: radial-gradient(circle at 50% 38%, #fff 0 18%, #111 19% 44%, #f5b800 45% 52%, #111 53%); }
.ic-prog { background: linear-gradient(135deg, #ff6b35, #d62d20); }
.post-credit { margin-left: auto; }
.post-credit .sifty-tag { margin-left: 0; }
.post-more { display: inline-flex; color: var(--rd-ink); }
.post-title { margin-top: var(--space-1); font-size: 17px; line-height: 22px; font-weight: 600; letter-spacing: -0.005em; }
.post-link { margin-top: var(--space-1); overflow: hidden; white-space: nowrap; text-overflow: ellipsis; font-size: 13px; line-height: 18px; }
.post-link a { color: var(--rd-link); text-decoration: underline; }
.post-actions { display: flex; gap: var(--space-2); margin-top: var(--space-3); }
.pill { display: inline-flex; align-items: center; gap: 6px; height: 32px; padding: 0 12px; border-radius: 999px; background: var(--rd-pill); font-size: 12px; font-weight: 600; }
.pill b { font-weight: 600; }
.i { width: 18px; height: 18px; }
.feed .sifty-bar { padding: 10px var(--space-3); font-size: 13px; line-height: 18px; }
.feed .sifty-show { padding: 5px 10px; font-size: 12px; }
@media (max-width: 480px) { .post-title { font-size: 15px; line-height: 20px; } .pill { height: 28px; padding: 0 10px; } }

/* ---------- presets ---------- */
.presets { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-6); }
.preset { display: flex; flex-direction: column; gap: var(--space-4); }
.preset-plate { aspect-ratio: 4 / 3; border-radius: var(--radius-lg); }
.preset-plate .sf-plate-caption { left: var(--space-4); bottom: var(--space-3); font-size: 32px; line-height: 36px; }
.preset-name { font: 400 24px/28px var(--font-serif); letter-spacing: -0.01em; }
.preset-rules { display: flex; flex-direction: column; gap: var(--space-2); font-size: 13px; line-height: 18px; }
.preset-rules div { display: grid; grid-template-columns: 7.5em 1fr; gap: var(--space-2); padding-top: var(--space-2); border-top: 1px solid var(--line); }
.preset-rules dt { color: var(--ink-muted); }
.presets-note { margin-top: var(--space-8); font-size: 13px; line-height: 18px; color: var(--ink-muted); }
@media (max-width: 900px) { .presets { grid-template-columns: 1fr; max-width: 480px; } }

/* ---------- steps ---------- */
.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-6); padding: 0; list-style: none; }
.steps li { display: flex; flex-direction: column; gap: var(--space-2); padding-top: var(--space-4); border-top: 1px solid var(--line-strong); }
.steps p { color: var(--ink-muted); font-size: 14px; line-height: 21px; }
.step-n { font: italic 400 44px/48px var(--font-serif); color: var(--accent-ink); }
@media (max-width: 760px) { .steps { grid-template-columns: 1fr; } }

/* ---------- privacy ---------- */
.privacy-link { align-self: flex-start; font-size: 13px; }
.checks { display: flex; flex-direction: column; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.checks li { display: flex; gap: var(--space-3); padding: var(--space-3) 0; border-bottom: 1px solid var(--line); }
.checks li::before {
  content: ""; flex: none; width: 8px; height: 8px; margin-top: 8px; border-radius: 50%;
  background: var(--bottle);
}

/* ---------- FAQ ---------- */
.faq-in { display: grid; grid-template-columns: 1fr 2fr; gap: var(--space-12); }
.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  display: flex; justify-content: space-between; align-items: center; gap: var(--space-4);
  padding: var(--space-4) 0; font: 500 15px/22px var(--font-sans); cursor: pointer; list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ""; flex: none; width: 7px; height: 7px; margin-top: -4px;
  border-right: 1.5px solid var(--ink-muted); border-bottom: 1.5px solid var(--ink-muted);
  transform: rotate(45deg); transition: transform 0.15s;
}
.faq details[open] summary::after { transform: rotate(-135deg); margin-top: 4px; }
.faq summary:hover { color: var(--accent-ink); }
.faq details p { max-width: 38em; padding-bottom: var(--space-4); color: var(--ink-muted); }
@media (max-width: 760px) { .faq-in { grid-template-columns: 1fr; gap: var(--space-6); } }

/* ---------- closing band ---------- */
.closing { padding: var(--space-20) 0; background: var(--ultramarine); color: var(--on-ultramarine); }
.closing-in { display: flex; flex-direction: column; align-items: center; gap: var(--space-6); text-align: center; }
.closing-mark { border-radius: 13px; box-shadow: 0 0 0 1px rgba(241, 242, 238, 0.25); }
.closing-actions { justify-content: center; }
.closing-alt { font-size: 13px; color: var(--on-ultramarine); text-underline-offset: 3px; }
.closing-alt:hover { color: var(--chartreuse); }
.closing :focus-visible { outline-color: var(--chartreuse); }

/* ---------- footer ---------- */
.site-foot { padding: var(--space-8) 0; font-size: 12px; line-height: 16px; color: var(--ink-muted); }
.site-foot-in { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-4) var(--space-6); }
.foot-brand { display: inline-flex; align-items: center; gap: var(--space-2); font: 400 18px/20px var(--font-serif); color: var(--ink); }
.foot-brand img { border-radius: 5px; }
.foot-nav { display: flex; gap: var(--space-4); }
.foot-nav a { color: var(--ink-muted); text-underline-offset: 3px; text-decoration-color: var(--line-strong); }
.foot-nav a:hover { color: var(--accent-ink); }
.foot-note { margin-left: auto; }
@media (max-width: 640px) { .foot-note { margin-left: 0; } }

/* ---------- privacy policy page ---------- */
.doc { max-width: 42em; padding: var(--space-12) 0 var(--space-20); }
.doc h1 { margin-bottom: var(--space-2); font: 400 44px/48px var(--font-serif); letter-spacing: -0.015em; }
.doc h2 { margin: var(--space-12) 0 var(--space-3); font: 400 28px/32px var(--font-serif); }
.doc h3 { margin: var(--space-6) 0 var(--space-2); font: 600 15px/22px var(--font-sans); }
.doc p, .doc ul { margin: 0 0 var(--space-4); }
.doc ul { padding-left: var(--space-6); }
.doc li + li { margin-top: var(--space-1); }
.doc a { color: var(--accent-ink); text-underline-offset: 3px; }
.doc strong { font-weight: 600; }
.doc h1 + p em { font-style: normal; font: 400 12px/16px var(--font-mono); color: var(--ink-muted); }