@font-face { font-family: 'Instrument Sans'; font-weight: 400; font-display: swap; src: url(/fonts/instrument-sans-latin-400-normal.woff2) format('woff2'); }
@font-face { font-family: 'Instrument Sans'; font-weight: 600; font-display: swap; src: url(/fonts/instrument-sans-latin-600-normal.woff2) format('woff2'); }
@font-face { font-family: 'Source Serif 4'; font-weight: 400; font-display: swap; src: url(/fonts/source-serif-4-latin-400-normal.woff2) format('woff2'); }
@font-face { font-family: 'Source Serif 4'; font-weight: 600; font-display: swap; src: url(/fonts/source-serif-4-latin-600-normal.woff2) format('woff2'); }

/* Same tokens as the app (tailwind.config.js): paper, page, shade, line, ink, mute, one red. */
:root {
  --paper: #FAFAFA; --page: #FFFFFF; --shade: #F4F4F3; --line: #E7E5E4;
  --ink: #1C1917; --mute: #78716C; --accent: #E8492B; --accent-ink: #FFFFFF;
  --sans: 'Instrument Sans', -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --serif: 'Source Serif 4', Georgia, 'Songti SC', serif;
}
@media (prefers-color-scheme: dark) {
  :root { --paper: #141312; --page: #1C1B1A; --shade: #262524; --line: #33312F; --ink: #F5F5F4; --mute: #A8A29E; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 16px/1.6 var(--sans); }
a { color: inherit; }
img { max-width: 100%; height: auto; display: block; }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }

header.top { display: flex; align-items: center; justify-content: space-between; padding: 18px 0; gap: 12px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; text-decoration: none; }
.brand img { width: 28px; height: 28px; border-radius: 7px; }
nav.links { display: flex; gap: 18px; font-size: 14px; color: var(--mute); }
nav.links a { text-decoration: none; }
nav.links a:hover { color: var(--ink); }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 11px 20px; border-radius: 999px; font-weight: 600; font-size: 15px; text-decoration: none; border: 1px solid var(--line); background: var(--page); color: var(--ink); cursor: pointer; }
.btn.accent { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn[aria-disabled="true"] { opacity: .55; cursor: default; }

.hero { padding: 56px 0 40px; text-align: center; }
.hero h1 { font: 600 clamp(34px, 6vw, 56px)/1.12 var(--serif); letter-spacing: -.01em; margin: 0 auto 18px; max-width: 16em; }
.hero p { color: var(--mute); font-size: 18px; max-width: 36em; margin: 0 auto 28px; }
.hero .ctas { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.hero small { display: block; margin-top: 14px; color: var(--mute); font-size: 13px; }

.shot { background: var(--page); border: 1px solid var(--line); border-radius: 16px; overflow: hidden; box-shadow: 0 10px 40px rgba(0,0,0,.06); }
.shot.dark { background: #000; }

section { padding: 48px 0; }
section h2 { font: 600 30px/1.2 var(--serif); margin: 0 0 8px; }
section .lead { color: var(--mute); margin: 0 0 28px; }

.feature { display: grid; grid-template-columns: 1fr 1.5fr; gap: 32px; align-items: center; margin: 0 0 44px; }
.feature h3 { font-size: 20px; margin: 0 0 8px; }
.feature p { color: var(--mute); margin: 0; }
.tag { display: inline-block; font-size: 12px; font-weight: 600; padding: 2px 8px; border-radius: 999px; background: var(--shade); color: var(--mute); margin-left: 6px; vertical-align: 3px; }
.tag.pro { color: var(--accent); }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card { background: var(--page); border: 1px solid var(--line); border-radius: 14px; padding: 20px; }
.card h3 { font-size: 16px; margin: 0 0 6px; }
.card p { color: var(--mute); font-size: 14px; margin: 0; }

.plans { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.plan { background: var(--page); border: 1px solid var(--line); border-radius: 16px; padding: 28px; display: flex; flex-direction: column; }
.plan.pro { border-color: var(--accent); }
.plan h3 { margin: 0; font-size: 18px; }
.price { font: 600 40px/1.1 var(--serif); margin: 14px 0 2px; }
.price s { font-size: 20px; color: var(--mute); font-weight: 400; margin-left: 6px; }
.plan .sub { color: var(--mute); font-size: 14px; margin: 0 0 16px; }
.plan ul { margin: 0 0 22px; padding-left: 18px; flex: 1; }
.plan li { margin: 4px 0; }

.faq details { background: var(--page); border: 1px solid var(--line); border-radius: 12px; padding: 14px 18px; margin-bottom: 10px; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq p { color: var(--mute); margin: 10px 0 0; }

footer { border-top: 1px solid var(--line); padding: 28px 0 40px; color: var(--mute); font-size: 14px; }
footer .row { display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: space-between; }
footer nav { display: flex; flex-wrap: wrap; gap: 16px; }

.doc { max-width: 760px; padding-bottom: 40px; }
.doc h1 { font: 600 36px/1.2 var(--serif); margin: 24px 0 4px; }
.doc h2 { font-size: 20px; margin: 32px 0 8px; }
.doc .updated { color: var(--mute); font-size: 14px; }
.doc hr { border: 0; border-top: 1px solid var(--line); margin: 48px 0; }
.doc p, .doc li { color: var(--ink); }

@media (max-width: 760px) {
  nav.links { display: none; }
  .feature, .plans, .grid { grid-template-columns: 1fr; }
  .feature { gap: 16px; }
  .hero { padding-top: 32px; }
}