/* Sift landing. Native CSS, one accent (Sift teal), auto light/dark.
   Radius system: buttons and pills are full-round, cards 16px, inputs 12px. */

@font-face { font-family: "Geist"; src: url(/assets/fonts/Geist-Variable.woff2) format("woff2"); font-weight: 100 900; font-display: swap; }
@font-face { font-family: "Geist Mono"; src: url(/assets/fonts/GeistMono-Variable.woff2) format("woff2"); font-weight: 100 900; font-display: swap; }

:root {
  --bg: #f4f7f8;
  --surface: #fdfefe;
  --surface-2: #e9eff1;
  --ink: #142028;
  --muted: #56656f;
  --line: #d4dde2;
  --accent: #0f7c73;
  --accent-ink: #fdfefe;
  --accent-soft: color-mix(in srgb, var(--accent) 10%, var(--surface));
  --hide: #a8452a;
  --r-card: 16px;
  --r-input: 12px;
  --shadow: 0 18px 50px -24px color-mix(in srgb, var(--accent) 35%, transparent);
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1519;
    --surface: #151f25;
    --surface-2: #1b272e;
    --ink: #e3eaee;
    --muted: #93a3ad;
    --line: #26343c;
    --accent: #3cb8aa;
    --accent-ink: #0b1a18;
    --hide: #e07a5a;
    --shadow: 0 18px 50px -24px rgb(0 0 0 / 0.6);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.6 "Geist", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
h1, h2, h3, p { margin: 0; }
h1, h2 { letter-spacing: -0.035em; line-height: 1.05; font-weight: 700; text-wrap: balance; }
h2 { font-size: clamp(1.9rem, 3.6vw, 2.8rem); }
h3 { font-size: 1.05rem; letter-spacing: -0.01em; }
a { color: inherit; }
code { font: 0.88em "Geist Mono", ui-monospace, monospace; }

.wrap { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 760px; }
.center { text-align: center; }
.sub { color: var(--muted); max-width: 60ch; margin-top: 14px; font-size: 1.05rem; }
.center .sub { margin-inline: auto; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 12px; z-index: 30; background: var(--surface); padding: 8px 12px; border-radius: 999px; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 22px; border-radius: 999px; font-weight: 600; text-decoration: none; white-space: nowrap;
  border: 1px solid transparent; transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), background 0.2s;
}
.btn:active { transform: translateY(1px) scale(0.98); }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { background: color-mix(in srgb, var(--accent) 88%, var(--ink)); }
.btn-ghost { border-color: var(--line); color: var(--ink); }
.btn-ghost:hover { border-color: var(--accent); }
.btn-sm { padding: 8px 16px; font-size: 0.9rem; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.icon {
  display: inline-block; width: 26px; height: 26px; flex: none;
  background: currentColor; -webkit-mask: var(--i) center / contain no-repeat; mask: var(--i) center / contain no-repeat;
}
.icon-sm { width: 16px; height: 16px; vertical-align: -2px; }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid color-mix(in srgb, var(--line) 60%, transparent);
}
.nav-inner { height: 64px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.2rem; letter-spacing: -0.03em; text-decoration: none; }
.brand img { border-radius: 8px; }
.brand.small { font-size: 1rem; }
.nav nav { display: flex; align-items: center; gap: 26px; font-size: 0.95rem; }
.nav nav a:not(.btn) { color: var(--muted); text-decoration: none; }
.nav nav a:not(.btn):hover { color: var(--ink); }

/* ---------- hero ---------- */
.hero {
  display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center;
  min-height: calc(100dvh - 64px); padding-top: 48px; padding-bottom: 56px;
}
h1 { font-size: clamp(2.4rem, 4.6vw, 3.6rem); }
h1 .line { display: block; white-space: nowrap; }

.lede { color: var(--muted); font-size: 1.2rem; max-width: 40ch; margin-top: 22px; }
.ctas { display: flex; gap: 12px; margin-top: 32px; flex-wrap: wrap; }

.demo {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-card);
  box-shadow: var(--shadow); overflow: hidden;
}
.demo-bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px; border-bottom: 1px solid var(--line); font-weight: 700;
}
.switch { display: inline-flex; align-items: center; gap: 10px; cursor: pointer; font-size: 0.9rem; }
.switch input { position: absolute; opacity: 0; }
.track { width: 40px; height: 24px; border-radius: 999px; background: var(--line); position: relative; transition: background 0.2s; }
.track::after {
  content: ""; position: absolute; top: 3px; left: 3px; width: 18px; height: 18px; border-radius: 50%;
  background: var(--surface); transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}
.switch input:checked + .track { background: var(--accent); }
.switch input:checked + .track::after { transform: translateX(16px); }
.switch input:focus-visible + .track { outline: 2px solid var(--accent); outline-offset: 3px; }

.feed { list-style: none; margin: 0; padding: 0; }
.post { position: relative; border-bottom: 1px solid var(--line); transition: opacity 0.3s, background 0.3s, filter 0.2s; }
.post:last-child { border-bottom: 0; }
.post-body { padding: 14px 18px; font-size: 0.95rem; }
.post-body p { margin-top: 4px; line-height: 1.5; }
.handle { color: var(--muted); font-size: 0.88rem; }

/* States mirror the real extension's content.css. */
.post.pending { filter: blur(5px); }
.post.dim { opacity: 0.4; }
.post.dim:hover { opacity: 1; }
.post.hl { background: var(--accent-soft); box-shadow: inset 3px 0 0 var(--accent); }
.post.hide:not(.peek) .post-body { display: none; }
.tag, .bar {
  display: flex; align-items: center; gap: 10px; font-size: 0.82rem; color: var(--muted);
}
.tag { position: absolute; right: 14px; top: 12px; background: var(--surface); border: 1px solid var(--line); border-radius: 999px; padding: 3px 10px; }
.post.hl .tag { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 40%, var(--line)); }
.bar { padding: 11px 18px; }
.bar strong { color: var(--ink); }
.bar .grow { flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.bar button, .result button {
  font: 600 0.8rem "Geist", sans-serif; padding: 5px 12px; border-radius: 999px;
  border: 1px solid var(--line); background: transparent; color: var(--ink); cursor: pointer;
}
.bar button:hover { border-color: var(--accent); }
.demo-note { font-size: 0.78rem; color: var(--muted); padding: 10px 18px; border-top: 1px solid var(--line); background: var(--surface-2); }
.toast { padding: 11px 18px; font-size: 0.85rem; color: var(--accent); }

/* ---------- rules playground ---------- */
.rules { padding: 110px 0; background: var(--surface); border-block: 1px solid var(--line); }
.playground { margin-top: 36px; }
.field-label { font-weight: 600; font-size: 0.95rem; display: block; }
.rule-row { margin-top: 8px; }
#ruleInput {
  width: 100%; font: 500 1.15rem "Geist", sans-serif; color: var(--ink);
  padding: 16px 18px; border-radius: var(--r-input); border: 1px solid var(--line); background: var(--bg);
}
#ruleInput:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.help { color: var(--muted); font-size: 0.88rem; margin-top: 8px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.chips button {
  font: 500 0.88rem "Geist", sans-serif; color: var(--ink); background: var(--bg);
  border: 1px solid var(--line); padding: 7px 14px; border-radius: 999px; cursor: pointer;
  transition: border-color 0.2s, transform 0.2s;
}
.chips button:hover { border-color: var(--accent); }
.chips button:active { transform: scale(0.97); }
.result {
  display: flex; gap: 16px; align-items: flex-start; margin-top: 28px; padding: 20px;
  border-radius: var(--r-card); background: var(--bg); border: 1px solid var(--line);
  min-height: 92px;
}
.pill {
  flex: none; font: 600 0.8rem "Geist Mono", monospace; text-transform: uppercase; letter-spacing: 0.04em;
  padding: 6px 12px; border-radius: 999px; background: var(--surface-2); color: var(--ink);
}
.pill[data-a="hide"] { background: color-mix(in srgb, var(--hide) 16%, var(--surface)); color: var(--hide); }
.pill[data-a="highlight"], .pill[data-a="show"] { background: var(--accent-soft); color: var(--accent); }
.result-label { color: var(--muted); font-size: 0.85rem; }
.result-q { font-size: 1.1rem; font-weight: 500; margin-top: 4px; }
.result.error .result-q { color: var(--hide); }

/* ---------- bento ---------- */
.features { padding: 110px 24px; }
.bento {
  margin-top: 40px; display: grid; gap: 16px;
  grid-template-columns: 1.1fr 1fr 1fr; grid-template-rows: auto auto;
}
.cell {
  border-radius: var(--r-card); border: 1px solid var(--line); background: var(--surface);
  padding: 28px; display: flex; flex-direction: column; gap: 10px; justify-content: flex-end; min-height: 230px;
}
.cell p { color: var(--muted); }
.cell .icon { color: var(--accent); margin-bottom: auto; }
.cell-shot { grid-row: span 2; margin: 0; padding: 0; overflow: hidden; justify-content: flex-start; background: #121c22; }
.cell-shot img { height: 420px; width: 100%; object-fit: cover; object-position: top; }
.cell-shot figcaption { padding: 24px 28px 28px; display: grid; gap: 8px; background: var(--surface); flex: 1; }
.cell-tint { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.cell-tint p, .cell-tint .icon { color: color-mix(in srgb, var(--accent-ink) 82%, transparent); }
.cell-mesh {
  grid-column: span 2;
  background:
    radial-gradient(circle at 1px 1px, color-mix(in srgb, var(--accent) 30%, transparent) 1px, transparent 1.6px) 0 0 / 10px 10px,
    var(--surface);
}
.cell-mesh code { background: var(--surface-2); padding: 2px 6px; border-radius: 6px; color: var(--ink); }

/* ---------- proof ---------- */
.proof { padding: 100px 0; background: var(--surface-2); }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin: 48px 0 0; }
.stats > div { padding: 8px 28px 8px 0; border-left: 1px solid var(--line); padding-left: 28px; }
.stats > div:first-child { border-left: 0; padding-left: 0; }
.stats dt { color: var(--muted); font-size: 0.95rem; }
.stats dd { margin: 6px 0 0; font: 700 clamp(2.6rem, 5vw, 3.6rem)/1 "Geist", sans-serif; letter-spacing: -0.04em; }
.stats small { font-size: 1rem; font-weight: 500; color: var(--muted); letter-spacing: 0; }

/* ---------- privacy ---------- */
.privacy { padding: 110px 24px; display: grid; grid-template-columns: 1fr 1.1fr; gap: 64px; align-items: start; }
.link { display: inline-flex; gap: 6px; align-items: center; margin-top: 22px; color: var(--accent); font-weight: 600; text-decoration: none; }
.link:hover { text-decoration: underline; }
.commitments { list-style: none; margin: 0; padding: 0; display: grid; gap: 28px; }
.commitments li { display: flex; gap: 18px; }
.commitments .icon { color: var(--accent); margin-top: 2px; }
.commitments p { color: var(--muted); margin-top: 4px; }

/* ---------- setup ---------- */
.setup { padding: 20px 24px 110px; display: grid; grid-template-columns: 1.2fr 1fr; gap: 64px; align-items: center; }
.setup-shot { border-radius: var(--r-card); border: 1px solid var(--line); box-shadow: var(--shadow); height: 460px; width: 100%; object-fit: cover; object-position: top; }

/* ---------- closing & footer ---------- */
.closing { padding: 110px 0; border-top: 1px solid var(--line); background: var(--surface); }
.closing .btn { margin-top: 30px; }
.footer { padding: 32px 0 40px; }
.footer-inner { display: flex; align-items: center; gap: 28px; flex-wrap: wrap; }
.footer nav { display: flex; gap: 20px; font-size: 0.9rem; }
.footer nav a { color: var(--muted); }
.fine { color: var(--muted); font-size: 0.85rem; margin-left: auto; }

/* ---------- motion ---------- */
@media (prefers-reduced-motion: no-preference) {
  .reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1); }
  .reveal.in { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}

/* ---------- mobile ---------- */
@media (max-width: 900px) {
  .hero, .privacy, .setup { grid-template-columns: 1fr; gap: 40px; }
  .hero { min-height: 0; padding-top: 36px; }
  h1 .line { white-space: normal; display: inline; }
  .bento { grid-template-columns: 1fr; }
  .cell-shot, .cell-mesh { grid-row: auto; grid-column: auto; }
  .cell-shot img { height: 320px; }
  .stats { grid-template-columns: 1fr; gap: 24px; }
  .stats > div, .stats > div:first-child { border-left: 0; padding-left: 0; }
  .setup-shot { height: 320px; }
  .fine { margin-left: 0; }
}
@media (max-width: 560px) {
  .wrap, .features, .privacy, .setup { padding-left: 16px; padding-right: 16px; }
  .nav nav a:not(.btn) { display: none; }
  .rules, .features, .proof, .privacy, .closing { padding-top: 72px; padding-bottom: 72px; }
  .tag { position: static; margin: 0 18px 12px; width: fit-content; }
}