/* Seans Arası statik sitesi — tek stil dosyası, harici bağımlılık yok. */
:root {
  --bg: #F8F6F2;
  --surface: #FFFFFF;
  --text: #2B2B33;
  --muted: #6B6B78;
  --accent: #4E7F6D;
  --accent-soft: #E6EFEA;
  --border: #E4E0D8;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15171A;
    --surface: #1E2124;
    --text: #ECEAE6;
    --muted: #A3A3AD;
    --accent: #8CC2AE;
    --accent-soft: #23302B;
    --border: #2E3236;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
}

a { color: var(--accent); }
a:hover { text-decoration-thickness: 2px; }

.wrap { max-width: 760px; margin: 0 auto; padding: 0 16px; }

.site-header { border-bottom: 1px solid var(--border); background: var(--surface); }
.site-header .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px; padding-top: 14px; padding-bottom: 14px; }
.brand { font-weight: 700; font-size: 1.15rem; color: var(--text); text-decoration: none; }
.site-header nav { display: flex; gap: 16px; }
.site-header nav a { color: var(--muted); text-decoration: none; font-size: .95rem; }
.site-header nav a[aria-current="page"] { color: var(--accent); font-weight: 600; }

main { padding-top: 32px; padding-bottom: 48px; }

h1 { font-size: 1.9rem; line-height: 1.25; margin: 0 0 12px; }
h2 { font-size: 1.15rem; margin: 28px 0 8px; }
h3 { font-size: 1rem; margin: 18px 0 6px; }
p, li { overflow-wrap: anywhere; }
ul { padding-left: 1.25rem; }
.lead { font-size: 1.1rem; color: var(--muted); }

.hero { padding: 24px 0 8px; }
.button {
  display: inline-block; padding: 12px 20px; border-radius: 12px;
  background: var(--accent); color: #fff; text-decoration: none; font-weight: 600;
}
.button[aria-disabled="true"] { opacity: .7; cursor: default; }

.features { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); margin: 24px 0; }
.card, .note, .doc, .faq details {
  background: var(--surface); border: 1px solid var(--border); border-radius: 14px;
}
.card { padding: 16px; }
.card h2 { margin-top: 0; font-size: 1.05rem; }
.card p { margin: 0; color: var(--muted); }
.note { padding: 4px 20px 12px; margin-top: 24px; }

.toc { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0 24px; }
.toc a { background: var(--accent-soft); padding: 6px 12px; border-radius: 999px; text-decoration: none; font-size: .95rem; }
.doc { padding: 8px 20px 20px; margin-bottom: 24px; }
.section-title { font-size: 1.4rem; margin-top: 16px; }

.faq details { padding: 12px 16px; margin: 10px 0; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq details p { margin: 8px 0 0; }

.site-footer { border-top: 1px solid var(--border); color: var(--muted); font-size: .9rem; }
.site-footer .wrap { padding-top: 16px; padding-bottom: 24px; }
.site-footer p { margin: 4px 0; }