:root {
  --bg: #ffffff;
  --bg-alt: #f6f8fa;
  --text: #14181f;
  --muted: #57616f;
  --line: #e4e8ed;
  --accent: #0f6f5c;
  --accent-strong: #0b5647;
  --accent-soft: rgba(15, 111, 92, 0.08);
  --radius: 12px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-strong); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 24px;
}

header.site-header {
  border-bottom: 1px solid var(--line);
  padding: 18px 0;
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 16px;
  letter-spacing: 0.01em;
  color: var(--text);
}

.brand-mark {
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  flex-shrink: 0;
}

nav.site-nav {
  display: flex;
  gap: 22px;
  font-size: 14px;
  font-weight: 600;
}

nav.site-nav a { color: var(--muted); }
nav.site-nav a:hover { color: var(--text); text-decoration: none; }

.hero {
  padding: 72px 0 56px;
  text-align: center;
}

.hero h1 {
  font-size: 40px;
  line-height: 1.15;
  margin: 0 0 10px;
  letter-spacing: -0.01em;
}

.hero .tagline {
  font-size: 19px;
  color: var(--muted);
  margin: 0 0 22px;
  font-weight: 500;
}

.hero .lede {
  max-width: 620px;
  margin: 0 auto;
  color: var(--muted);
  font-size: 16px;
}

.badge {
  display: inline-block;
  margin-bottom: 18px;
  padding: 5px 12px;
  border-radius: 99px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

section {
  padding: 48px 0;
  border-top: 1px solid var(--line);
}

section h2 {
  font-size: 24px;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}

section > .wrap > p.section-intro {
  color: var(--muted);
  font-size: 16px;
  max-width: 640px;
  margin: 0 0 28px;
}

.mode-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.mode-card {
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
}

.mode-card h3 {
  margin: 0 0 8px;
  font-size: 17px;
}

.mode-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14.5px;
}

.feature-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px 28px;
}

.feature-list li {
  padding-left: 26px;
  position: relative;
  color: var(--muted);
  font-size: 15px;
}

.feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
}

.callout {
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
}

.callout p { margin: 0; color: var(--muted); }
.callout p + p { margin-top: 10px; }

.contact-email {
  display: inline-block;
  margin-top: 6px;
  font-weight: 700;
  font-size: 16px;
}

footer.site-footer {
  border-top: 1px solid var(--line);
  padding: 28px 0 40px;
  color: var(--muted);
  font-size: 13px;
}

footer.site-footer .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

footer.site-footer nav {
  display: flex;
  gap: 18px;
}

.legal main {
  padding: 56px 0 64px;
}

.legal h1 {
  font-size: 30px;
  margin: 0 0 6px;
}

.legal .updated {
  color: var(--muted);
  font-size: 13.5px;
  margin: 0 0 34px;
}

.legal h2 {
  font-size: 18px;
  margin: 34px 0 10px;
}

.legal p, .legal li { color: var(--text); font-size: 15.5px; }
.legal ul { padding-left: 22px; }

@media (max-width: 680px) {
  .mode-grid { grid-template-columns: 1fr; }
  .feature-list { grid-template-columns: 1fr; }
  .hero h1 { font-size: 30px; }
  nav.site-nav { gap: 14px; font-size: 13px; }
}