/* Ver 2026-08-06 17:05, by claude-sonnet-5 */
:root {
  --brand: #10a37f;
  --brand-dark: #0d8a6a;
  --bg: #fafafa;
  --card-bg: #ffffff;
  --text: #1a1a1a;
  --text-muted: #666666;
  --border: #e5e5e5;
  --code-bg: #f2f2f2;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15181a;
    --card-bg: #1e2224;
    --text: #f0f0f0;
    --text-muted: #a0a8ac;
    --border: #2c3134;
    --code-bg: #262b2e;
  }
}
* { 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, "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
}
a { color: var(--brand); }
.wrap { max-width: 880px; margin: 0 auto; padding: 0 20px; }

header.site {
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
}
header.site .wrap { display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 16px; text-decoration: none; color: var(--text); }
.brand img { width: 28px; height: 28px; border-radius: 7px; }
nav.site a { margin-left: 20px; color: var(--text-muted); text-decoration: none; font-size: 14px; font-weight: 600; }
nav.site a:hover { color: var(--brand); }

.hero { text-align: center; padding: 72px 0 48px; }
.hero img.hero-icon { width: 88px; height: 88px; border-radius: 22px; box-shadow: 0 8px 24px rgba(16,163,127,0.25); }
.hero h1 { font-size: 34px; margin: 24px 0 10px; }
.hero p.tagline { font-size: 18px; color: var(--text-muted); max-width: 560px; margin: 0 auto 28px; }
.cta-row { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 22px; border-radius: 10px; font-weight: 700; font-size: 15px;
  text-decoration: none; border: 1px solid transparent; cursor: pointer;
}
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-dark); }
.btn-secondary { background: transparent; color: var(--text); border-color: var(--border); }
.btn-secondary:hover { border-color: var(--brand); color: var(--brand); }
.btn[disabled], .btn.disabled { opacity: 0.5; cursor: not-allowed; pointer-events: none; }
.badge-soon {
  display: inline-block; font-size: 11px; font-weight: 700; padding: 2px 8px;
  border-radius: 999px; background: var(--code-bg); color: var(--text-muted); margin-left: 6px;
}

.platforms { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: 28px; }
.platform-pill {
  font-size: 13px; font-weight: 600; padding: 6px 14px; border-radius: 999px;
  background: var(--code-bg); color: var(--text);
}

section { padding: 48px 0; }
section.alt { background: var(--card-bg); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
h2 { font-size: 24px; text-align: center; margin-bottom: 8px; }
p.section-sub { text-align: center; color: var(--text-muted); margin-bottom: 36px; }

.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.feature-card {
  background: var(--card-bg); border: 1px solid var(--border); border-radius: 14px;
  padding: 20px;
}
.feature-card h3 { margin: 0 0 8px; font-size: 15px; }
.feature-card p { margin: 0; font-size: 13.5px; color: var(--text-muted); }

.shots { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: start; }
@media (max-width: 640px) { .shots { grid-template-columns: 1fr; } }
.shot-card { text-align: center; }
.shot-card img {
  max-width: 100%; border-radius: 12px; border: 1px solid var(--border);
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}
.shot-card p { font-size: 13px; color: var(--text-muted); margin-top: 10px; }

.install-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
@media (max-width: 640px) { .install-grid { grid-template-columns: 1fr; } }
.install-card {
  background: var(--card-bg); border: 1px solid var(--border); border-radius: 14px; padding: 24px;
}
.install-card h3 { margin-top: 0; font-size: 17px; }
.install-card ol { padding-left: 20px; font-size: 14px; color: var(--text-muted); }
.install-card ol li { margin-bottom: 6px; }
code {
  background: var(--code-bg); padding: 2px 6px; border-radius: 5px; font-size: 13px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.privacy-note { text-align: center; max-width: 560px; margin: 0 auto; }
.privacy-note p { color: var(--text-muted); }

footer {
  padding: 32px 0 48px; text-align: center; color: var(--text-muted); font-size: 13px;
}
footer a { color: var(--text-muted); text-decoration: underline; }
footer .foot-links { margin-top: 8px; }
footer .foot-links a { margin: 0 8px; }

/* --- privacy.html doc styles --- */
.doc-header { text-align: center; padding: 56px 0 24px; }
.doc-header h1 { font-size: 28px; margin: 0 0 8px; }
.doc-header p { color: var(--text-muted); font-size: 14px; }
.lang-tabs { display: flex; justify-content: center; gap: 8px; margin-top: 20px; }
.lang-tab {
  padding: 8px 18px; border-radius: 999px; font-size: 13px; font-weight: 700;
  border: 1px solid var(--border); background: var(--card-bg); color: var(--text-muted); cursor: pointer;
}
.lang-tab.active { background: var(--brand); border-color: var(--brand); color: #fff; }
.doc { max-width: 720px; margin: 0 auto; padding-bottom: 56px; }
.doc h2 { text-align: left; font-size: 19px; margin: 32px 0 10px; }
.doc h2:first-child { margin-top: 0; }
.doc p, .doc li { font-size: 15px; color: var(--text); }
.doc ul, .doc ol { padding-left: 22px; }
.doc li { margin-bottom: 6px; }
.doc strong { color: var(--text); }
.doc-callout {
  background: var(--card-bg); border: 1px solid var(--border); border-radius: 12px;
  padding: 16px 20px; font-size: 14.5px; margin-bottom: 8px;
}
.doc-lang-section[hidden] { display: none; }
.back-link { display: inline-block; margin-bottom: 24px; font-size: 14px; font-weight: 600; text-decoration: none; }