/* ClerkMail: flat ink on paper, like the app. No scripts, no web fonts, no trackers. */
:root {
  --paper: #f7f6f3;
  --card: #ffffff;
  --ink: #161616;
  --ink-2: #4a4a48;
  --ink-3: #7a7a77;
  --line: #e4e2dc;
  --accent: #d9661f;
  --on-ink: #ffffff;
  --radius: 14px;
  --max: 1120px;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #121212;
    --card: #1b1b1b;
    --ink: #f2f1ee;
    --ink-2: #c4c3bf;
    --ink-3: #8f8e8a;
    --line: #2c2c2b;
    --accent: #f08a45;
    --on-ink: #121212;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 760px; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--paper) 88%, transparent); backdrop-filter: saturate(1.4) blur(12px); -webkit-backdrop-filter: saturate(1.4) blur(12px); border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 650; font-size: 18px; text-decoration: none; letter-spacing: -0.01em; }
.brand img { width: 30px; height: 30px; border-radius: 7px; }
.site-nav { display: flex; align-items: center; gap: 22px; font-size: 15px; }
.site-nav a { text-decoration: none; color: var(--ink-2); }
.site-nav a:hover { color: var(--ink); }
.site-nav a.button, .site-nav a.button:hover { color: var(--on-ink); }

/* Buttons */
.button { display: inline-flex; align-items: center; gap: 8px; padding: 12px 20px; border-radius: 999px; background: var(--ink); color: var(--on-ink); font-weight: 600; font-size: 16px; text-decoration: none; border: 1px solid var(--ink); }
.button:hover { color: var(--on-ink); opacity: 0.88; }
.button.small { padding: 7px 14px; font-size: 14px; }
.button.ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.button.ghost:hover { color: var(--ink); border-color: var(--ink-3); opacity: 1; }

/* Hero */
.hero { padding: 88px 0 40px; text-align: center; }
.hero .icon { width: 96px; height: 96px; margin: 0 auto 28px; border-radius: 22px; }
.eyebrow { display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 14px; }
h1 { font-size: clamp(36px, 6vw, 60px); line-height: 1.06; letter-spacing: -0.03em; margin: 0 auto 20px; max-width: 16ch; font-weight: 700; }
.lede { font-size: clamp(18px, 2.2vw, 21px); color: var(--ink-2); max-width: 40em; margin: 0 auto 32px; }
.actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.fineprint { font-size: 14px; color: var(--ink-3); margin-top: 16px; }

.shot { margin: 56px auto 0; border-radius: 12px; border: 1px solid var(--line); box-shadow: 0 1px 2px rgba(0,0,0,.04), 0 18px 50px -20px rgba(0,0,0,.25); overflow: hidden; background: var(--card); }

/* Sections */
section { padding: 72px 0; }
section + section { border-top: 1px solid var(--line); }
h2 { font-size: clamp(28px, 3.6vw, 40px); line-height: 1.12; letter-spacing: -0.025em; margin: 0 0 16px; font-weight: 700; }
h3 { font-size: 19px; margin: 0 0 6px; letter-spacing: -0.01em; }
.section-lede { color: var(--ink-2); font-size: 19px; max-width: 42em; margin: 0 0 40px; }

.split { display: grid; grid-template-columns: 1fr 1.25fr; gap: 56px; align-items: center; }
.split.reverse { grid-template-columns: 1.25fr 1fr; }
.split.reverse > :first-child { order: 2; }
.split .shot { margin: 0; }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 22px 20px; }
.card p { margin: 0; color: var(--ink-2); font-size: 15.5px; }
.card .mark { font-size: 20px; margin-bottom: 10px; display: block; }

.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.checks li { padding-left: 30px; position: relative; color: var(--ink-2); }
.checks li::before { content: ""; position: absolute; left: 0; top: 7px; width: 16px; height: 16px; border-radius: 50%; background: var(--ink); -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M8 0a8 8 0 1 0 0 16A8 8 0 0 0 8 0zm3.6 5.9-4.1 4.6a.8.8 0 0 1-1.2 0L4.4 8.4a.8.8 0 1 1 1.2-1.1l1.3 1.4 3.5-3.9a.8.8 0 1 1 1.2 1.1z'/%3E%3C/svg%3E") center/contain no-repeat; mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M8 0a8 8 0 1 0 0 16A8 8 0 0 0 8 0zm3.6 5.9-4.1 4.6a.8.8 0 0 1-1.2 0L4.4 8.4a.8.8 0 1 1 1.2-1.1l1.3 1.4 3.5-3.9a.8.8 0 1 1 1.2 1.1z'/%3E%3C/svg%3E") center/contain no-repeat; }
.checks strong { color: var(--ink); }
.checks.two-col { grid-template-columns: 1fr 1fr; gap: 16px 40px; }

.callout { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.callout h3 { margin-bottom: 10px; }
.callout p { color: var(--ink-2); margin: 0 0 12px; }
.callout p:last-child { margin-bottom: 0; }
.callout.spaced { margin-top: 16px; }
.section-lede.centered { margin: 0 auto 28px; }

.faq { display: grid; gap: 10px; }
.faq details { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 16px 20px; }
.faq summary { cursor: pointer; font-weight: 600; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; float: right; color: var(--ink-3); font-weight: 400; }
.faq details[open] summary::after { content: "–"; }
.faq details p { color: var(--ink-2); margin: 10px 0 0; }

.download { text-align: center; }
.download .icon { width: 72px; height: 72px; margin: 0 auto 20px; border-radius: 16px; }
.reqs { display: flex; gap: 10px 22px; justify-content: center; flex-wrap: wrap; color: var(--ink-3); font-size: 15px; margin-top: 18px; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 32px 0 48px; color: var(--ink-3); font-size: 14px; }
.site-footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.site-footer nav { display: flex; gap: 20px; flex-wrap: wrap; }
.site-footer a { text-decoration: none; }

/* Legal pages */
.legal { padding: 56px 0 80px; }
.legal h1 { font-size: clamp(32px, 4.5vw, 44px); max-width: none; text-align: left; margin-bottom: 8px; }
.legal .updated { color: var(--ink-3); margin: 0 0 32px; }
.legal h2 { font-size: 24px; margin: 44px 0 12px; letter-spacing: -0.015em; }
.legal h3 { font-size: 18px; margin: 26px 0 8px; }
.legal p, .legal li { color: var(--ink-2); }
.legal li { margin-bottom: 6px; }
.legal strong { color: var(--ink); }
.legal .summary { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 26px; margin-bottom: 8px; }
.legal .summary ul { margin: 8px 0 0; padding-left: 20px; }
.legal table { width: 100%; border-collapse: collapse; font-size: 15.5px; margin: 12px 0 8px; }
.legal th, .legal td { text-align: left; vertical-align: top; padding: 10px 12px; border-bottom: 1px solid var(--line); color: var(--ink-2); }
.legal th { color: var(--ink); font-weight: 600; }
.legal blockquote { margin: 12px 0; padding: 14px 18px; border-left: 3px solid var(--ink); background: var(--card); border-radius: 0 10px 10px 0; color: var(--ink); }
.toc { columns: 2; column-gap: 32px; padding-left: 20px; margin: 0 0 8px; }

@media (max-width: 860px) {
  .split, .split.reverse { grid-template-columns: 1fr; gap: 32px; }
  .split.reverse > :first-child { order: 0; }
  .grid { grid-template-columns: 1fr 1fr; }
  .site-nav a.hide-sm { display: none; }
  .toc { columns: 1; }
  .checks.two-col { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .wrap { padding: 0 16px; }
  .grid { grid-template-columns: 1fr; }
  .hero { padding-top: 56px; }
  section { padding: 56px 0; }
  .legal table, .legal thead, .legal tbody, .legal tr, .legal th, .legal td { display: block; }
  .legal thead { display: none; }
  .legal td { border-bottom: 0; padding: 4px 0; }
  .legal tr { border-bottom: 1px solid var(--line); padding: 10px 0; }
}