/* Palette tokens flip with the OS theme. Light values match the blog exporter's
   template (services/blog_export.py) so home -> blog never changes appearance. */
:root {
  color-scheme: light dark;
  --accent: #12996a;
  --accent-ink: #0c7a54;
  --accent-hover: #12996a;
  --accent-soft: rgba(18, 153, 106, 0.45);
  --bg: #ffffff;
  --surface: #f3f8f5;
  --text: #1a1a1a;
  --muted: #666666;
  --border: #e2ebe6;
  --glow-1: rgba(18, 153, 106, 0.10);
  --glow-2: rgba(18, 153, 106, 0.07);
  --logo-shadow: rgba(18, 153, 106, 0.22);
  --wordmark-from: #14181f;
  --wordmark-to: #12996a;
  --maxw: 760px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --accent: #5dd39e;
    --accent-ink: #5dd39e;
    --accent-hover: #7fe3b6;
    --accent-soft: rgba(93, 211, 158, 0.45);
    --bg: #0f1115;
    --surface: #1a1d23;
    --text: #f5f5f5;
    --muted: #a3a8b3;
    --border: #2a2e37;
    --glow-1: rgba(93, 211, 158, 0.16);
    --glow-2: rgba(18, 153, 106, 0.10);
    --logo-shadow: rgba(18, 153, 106, 0.35);
    --wordmark-from: #ffffff;
    --wordmark-to: #b7f0d4;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  /* Soft green glow behind the hero so the page reads intentional, not flat. */
  background-image:
    radial-gradient(1100px 520px at 50% -8%, var(--glow-1), transparent 60%),
    radial-gradient(700px 400px at 100% 0%, var(--glow-2), transparent 55%);
  background-repeat: no-repeat;
}

a { color: var(--accent-ink); }
a:hover { color: var(--accent-hover); }

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.site-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 22px 0;
  border-bottom: 1px solid var(--border);
}
.site-header .brand { display: flex; align-items: center; gap: 12px; }
.site-header img { width: 36px; height: 36px; border-radius: 9px; }
.site-header .name { font-weight: 700; font-size: 1.15rem; letter-spacing: 0.2px; }
.site-header a { color: var(--text); text-decoration: none; }
.site-header nav { margin-left: auto; display: flex; gap: 22px; }
.site-header nav a {
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 600;
}
.site-header nav a:hover { color: var(--accent-ink); }

/* Hero */
.hero {
  text-align: center;
  padding: 72px 0 44px;
}
.hero img.logo {
  width: 112px; height: 112px; border-radius: 26px;
  box-shadow: 0 14px 50px var(--logo-shadow);
}
.hero h1 {
  font-size: 2.9rem;
  margin: 26px 0 10px;
  letter-spacing: -0.8px;
  background: linear-gradient(180deg, var(--wordmark-from), var(--wordmark-to));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero .tagline {
  color: var(--muted);
  font-size: 1.18rem;
  max-width: 560px;
  margin: 0 auto 30px;
}

/* Download */
.download {
  display: inline-block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 12px 22px;
  color: var(--muted);
  font-size: 0.95rem;
}
.download strong { color: var(--accent-ink); }

/* Features */
.features {
  list-style: none;
  padding: 0;
  margin: 52px auto 0;
  max-width: 640px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  text-align: left;
}
.features li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px 20px;
  transition: transform 0.15s ease, border-color 0.15s ease;
}
.features li:hover {
  transform: translateY(-2px);
  border-color: var(--accent-soft);
}
.features li b { color: var(--accent-ink); display: block; margin-bottom: 2px; }

/* Content pages */
.page { padding: 40px 0 24px; }
.page h1 { font-size: 1.9rem; margin-bottom: 4px; }
.page .effective { color: var(--muted); font-size: 0.9rem; margin-top: 0; }
.page h2 { font-size: 1.25rem; margin-top: 36px; color: var(--accent-ink); }
.page ul { padding-left: 20px; }
.page li { margin: 6px 0; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 64px;
  padding: 28px 0 56px;
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}
.site-footer a { margin: 0 10px; }

@media (max-width: 560px) {
  .hero { padding: 48px 0 30px; }
  .hero h1 { font-size: 2.1rem; }
  .hero .tagline { font-size: 1.05rem; }
  .features { grid-template-columns: 1fr; }
  .site-header nav { gap: 16px; }
}