:root {
  --bg: #ffffff;
  --bg-soft: #f5f7fa;
  --text: #14181f;
  --muted: #5b6573;
  --border: #e3e7ed;
  --accent: #e5484d;
  --accent-text: #ffffff;
  --card: #ffffff;
  --slack: #1d1c1d;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1216;
    --bg-soft: #161a20;
    --text: #e8ebef;
    --muted: #9aa4b2;
    --border: #262c35;
    --card: #161a20;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
a { color: inherit; }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }
header.top { border-bottom: 1px solid var(--border); }
header.top .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.logo { font-weight: 700; font-size: 20px; text-decoration: none; letter-spacing: -0.02em; }
.logo span { color: var(--accent); }
nav a { color: var(--muted); text-decoration: none; margin-left: 20px; font-size: 15px; }
nav a:hover { color: var(--text); }
.btn {
  display: inline-block; background: var(--accent); color: var(--accent-text);
  padding: 12px 22px; border-radius: 8px; text-decoration: none; font-weight: 600;
}
.btn.secondary { background: transparent; color: var(--text); border: 1px solid var(--border); }
.hero { padding: 72px 0 56px; display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center; }
.hero h1 { font-size: 44px; line-height: 1.1; letter-spacing: -0.03em; margin: 0 0 18px; }
.hero p.lead { font-size: 19px; color: var(--muted); margin: 0 0 28px; }
.hero .ctas { display: flex; gap: 12px; flex-wrap: wrap; }
.note { font-size: 14px; color: var(--muted); margin-top: 14px; }
.alert-mock {
  background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 18px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.08); font-size: 15px;
}
.alert-mock .who { font-weight: 700; }
.alert-mock .who small { color: var(--muted); font-weight: 400; margin-left: 6px; }
.alert-mock .body { margin: 8px 0 14px; border-left: 3px solid var(--accent); padding-left: 12px; }
.alert-mock .buttons { display: flex; gap: 8px; flex-wrap: wrap; }
.alert-mock .buttons span { border: 1px solid var(--border); border-radius: 6px; padding: 5px 12px; font-size: 14px; font-weight: 600; }
.alert-mock .buttons span.danger { color: var(--accent); border-color: var(--accent); }
section { padding: 56px 0; }
section.soft { background: var(--bg-soft); }
section h2 { font-size: 30px; letter-spacing: -0.02em; margin: 0 0 8px; }
section p.sub { color: var(--muted); margin: 0 0 32px; }
.grid { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 22px; }
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.price { font-size: 36px; font-weight: 700; margin: 8px 0 4px; }
.price small { font-size: 15px; color: var(--muted); font-weight: 400; }
.card ul { padding-left: 18px; margin: 14px 0 0; color: var(--muted); font-size: 15px; }
.card.featured { border: 2px solid var(--accent); }
.founding { text-align: center; }
.founding .btn { margin-top: 8px; }
.contact dl { display: grid; grid-template-columns: max-content 1fr; gap: 8px 20px; margin: 0; }
.contact dt { color: var(--muted); }
.contact dd { margin: 0; }
footer { border-top: 1px solid var(--border); padding: 28px 0; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
footer a { color: var(--muted); margin-right: 16px; }
.legal { max-width: 760px; padding: 48px 20px 64px; }
.legal h1 { font-size: 34px; letter-spacing: -0.02em; margin-bottom: 4px; }
.legal h2 { font-size: 21px; margin-top: 32px; }
.legal .updated { color: var(--muted); margin-top: 0; }
@media (max-width: 760px) {
  .hero { grid-template-columns: 1fr; padding: 48px 0 32px; gap: 32px; }
  .hero h1 { font-size: 34px; }
  nav a:not(.btn) { display: none; }
  .contact dl { grid-template-columns: 1fr; gap: 2px; }
  .contact dd { margin-bottom: 10px; }
}