/* Stuffit · Public Pages
   Minimal, system-font CSS tuned for App Store / Privacy / Terms pages.
   Mobile-first, dark theme to match the product. */

:root {
  --bg: #07090e;
  --bg-elev: #0f131c;
  --bg-card: #161b27;
  --border: #232a3a;
  --text: #e6e8ee;
  --text-dim: #9aa3b5;
  --text-mute: #6b7385;
  --accent: #d4af7a;            /* leather gold */
  --accent-2: #8b7355;
  --link: #7aa8ff;
  --max-w: 760px;
  --radius: 14px;
  --gap: 1.25rem;
  --pad: 1.5rem;
  font-synthesis: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
               "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue",
               Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
}

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

/* ---------- Header / Nav ---------- */
header.site {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(7, 9, 14, 0.85);
  backdrop-filter: saturate(160%) blur(10px);
  -webkit-backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0.75rem var(--pad);
  display: flex;
  align-items: center;
  gap: 1rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
}
.brand img { width: 28px; height: 28px; border-radius: 6px; }
.nav-links {
  margin-left: auto;
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
  font-size: 0.92rem;
  color: var(--text-dim);
}
.nav-links a { color: var(--text-dim); }
.nav-links a:hover { color: var(--text); text-decoration: none; }
.lang-switch {
  border: 1px solid var(--border);
  background: var(--bg-elev);
  color: var(--text-dim);
  padding: 0.3rem 0.6rem;
  border-radius: 8px;
  font-size: 0.85rem;
  cursor: pointer;
  font-family: inherit;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'><path fill='none' stroke='%239aa3b5' stroke-width='1.5' d='M1 1l4 4 4-4'/></svg>");
  background-repeat: no-repeat;
  background-position: right 0.6rem center;
  padding-right: 1.6rem;
  min-width: 8.5rem;
}
.lang-switch:hover { color: var(--text); border-color: var(--accent-2); }
.lang-switch:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

/* ---------- Main ---------- */
main {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 2.5rem var(--pad) 4rem;
}

h1, h2, h3 { color: var(--text); font-weight: 600; line-height: 1.3; }
h1 { font-size: 1.85rem; margin: 0 0 0.5rem; }
h2 { font-size: 1.25rem; margin: 2.5rem 0 0.75rem; padding-top: 1rem;
     border-top: 1px solid var(--border); }
h3 { font-size: 1.05rem; margin: 1.5rem 0 0.5rem; }
p, li { color: var(--text); }
p { margin: 0.75rem 0; }
.lead { color: var(--text-dim); font-size: 1.05rem; margin-bottom: 1.5rem; }
ul, ol { padding-left: 1.5rem; }
ul li, ol li { margin: 0.35rem 0; }
strong { color: var(--text); }
hr { border: 0; border-top: 1px solid var(--border); margin: 2rem 0; }

.meta { color: var(--text-mute); font-size: 0.9rem; margin-bottom: 1.5rem; }

/* ---------- Hero (home only) ---------- */
.hero {
  text-align: center;
  padding: 3rem 0 2rem;
}
.hero img.app-icon {
  width: 96px; height: 96px; border-radius: 22px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.45);
  margin-bottom: 1.25rem;
}
.hero h1 { font-size: 2.4rem; margin-bottom: 0.5rem; }
.hero .tagline { color: var(--text-dim); font-size: 1.15rem; margin-bottom: 1.5rem; }
.hero .cta { display: inline-block; padding: 0.75rem 1.5rem; background: var(--accent);
             color: #1a1410; border-radius: 999px; font-weight: 600; }
.hero .cta:hover { text-decoration: none; background: #e0bc8a; }

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--gap);
  margin-top: 2rem;
}
.feature {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}
.feature h3 { margin-top: 0; }
.feature .label {
  display: inline-block; padding: 0.15rem 0.5rem; border-radius: 999px;
  background: rgba(212, 175, 122, 0.12); color: var(--accent);
  font-size: 0.75rem; font-weight: 600; margin-bottom: 0.5rem;
  letter-spacing: 0.04em; text-transform: uppercase;
}

/* ---------- Footer ---------- */
footer.site {
  border-top: 1px solid var(--border);
  padding: 1.5rem var(--pad);
  color: var(--text-mute);
  font-size: 0.85rem;
  text-align: center;
}
footer.site a { color: var(--text-dim); }
footer.site .links { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; margin-bottom: 0.5rem; }

/* ---------- Article / Legal pages ---------- */
article.legal h2::before {
  content: ""; display: block; height: 4rem; margin-top: -4rem; visibility: hidden;
}
article.legal p, article.legal li { font-size: 0.97rem; }
article.legal .toc {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin: 1.5rem 0 2rem;
}
article.legal .toc h2 { border: 0; margin: 0 0 0.5rem; padding: 0; font-size: 1rem; }
article.legal .toc ol { margin: 0.25rem 0 0; padding-left: 1.25rem; }
article.legal .toc li { margin: 0.2rem 0; font-size: 0.92rem; }
article.legal table { width: 100%; border-collapse: collapse; margin: 1rem 0; font-size: 0.9rem; }
article.legal th, article.legal td { border: 1px solid var(--border); padding: 0.5rem 0.75rem; text-align: left; }
article.legal th { background: var(--bg-elev); color: var(--text-dim); font-weight: 600; }

/* ---------- Responsive ---------- */
@media (max-width: 540px) {
  main { padding: 1.5rem 1rem 3rem; }
  .hero h1 { font-size: 1.9rem; }
  .nav-links { gap: 0.75rem; font-size: 0.85rem; }
  .nav { padding: 0.5rem 1rem; flex-wrap: wrap; }
  .lang-switch { width: 100%; margin-top: 0.5rem; }
}