/* Shared styles for the ads-engine.net static pages. */
:root {
  --ink: #16202b;
  --muted: #5b6b7b;
  --accent: #2563eb;
  --accent-dark: #1d4ed8;
  --bg: #ffffff;
  --bg-soft: #f4f7fb;
  --border: #e3e9f1;
  --radius: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}

.container { max-width: 960px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 760px; }

header.site {
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}
header.site .container {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 16px; padding-bottom: 16px;
}
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.15rem; text-decoration: none; color: var(--ink); }
.logo svg { display: block; }

nav a { color: var(--muted); text-decoration: none; margin-left: 22px; font-size: 0.95rem; }
nav a:hover { color: var(--ink); }
nav a.cta {
  color: #fff; background: var(--accent); padding: 8px 16px; border-radius: 8px;
}
nav a.cta:hover { background: var(--accent-dark); color: #fff; }

.hero { padding: 72px 0 56px; text-align: center; background: linear-gradient(180deg, var(--bg-soft), var(--bg)); }
.hero h1 { font-size: 2.6rem; line-height: 1.15; margin: 0 0 18px; }
.hero p.lead { font-size: 1.2rem; color: var(--muted); max-width: 640px; margin: 0 auto 30px; }
.hero .actions a.primary {
  display: inline-block; background: var(--accent); color: #fff; text-decoration: none;
  padding: 13px 28px; border-radius: 10px; font-weight: 600; font-size: 1.05rem;
}
.hero .actions a.primary:hover { background: var(--accent-dark); }
.hero .actions .minor { display: block; margin-top: 14px; color: var(--muted); font-size: 0.9rem; }

section.features { padding: 48px 0 24px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
.card {
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px; background: var(--bg);
}
.card h3 { margin: 0 0 8px; font-size: 1.05rem; }
.card p { margin: 0; color: var(--muted); font-size: 0.95rem; }

section.how { padding: 36px 0 56px; }
section.how ol { color: var(--muted); max-width: 640px; margin: 0 auto; padding-left: 22px; }
section.how li { margin-bottom: 10px; }
h2.section { text-align: center; font-size: 1.6rem; margin: 0 0 26px; }

main.legal { padding: 44px 0 64px; }
main.legal h1 { font-size: 2rem; margin-bottom: 4px; }
main.legal .updated { color: var(--muted); margin-bottom: 32px; font-size: 0.95rem; }
main.legal h2 { font-size: 1.25rem; margin-top: 34px; }
main.legal p, main.legal li { color: #2c3a49; }
main.legal code { background: var(--bg-soft); padding: 1px 6px; border-radius: 5px; font-size: 0.9em; }

footer.site {
  border-top: 1px solid var(--border);
  padding: 28px 0; margin-top: 24px;
  color: var(--muted); font-size: 0.9rem;
}
footer.site .container { display: flex; flex-wrap: wrap; gap: 12px 26px; align-items: center; justify-content: space-between; }
footer.site a { color: var(--muted); text-decoration: none; margin-right: 18px; }
footer.site a:hover { color: var(--ink); }

@media (max-width: 600px) {
  .hero { padding: 48px 0 40px; }
  .hero h1 { font-size: 1.9rem; }
  nav a { margin-left: 14px; }
}