/* SnapShrink static pages — site.css
 * Light-first editorial layout. Tokens aligned with @snapshrink/ui v1.0.0.
 * Pair with /css/fonts.css. No inline styles (CSP). */

:root,
[data-theme="light"] {
  color-scheme: light;
  --ss-bg: #f4f5f7;
  --ss-surface: #ffffff;
  --ss-text: #12141a;
  --ss-muted: #5c6478;
  --ss-primary: #0f6e6a;
  --ss-primary-ink: #ffffff;
  --ss-success: #15803d;
  --ss-danger: #b91c1c;
  --ss-border: rgba(18, 20, 26, 0.1);
  --ss-focus: #0f6e6a;
  --ss-font: "Source Sans 3", system-ui, -apple-system, "Segoe UI", sans-serif;
  --ss-font-display: "Fraunces", "Source Sans 3", Georgia, serif;
  --ss-font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --ss-r-md: 10px;
  --ss-r-lg: 14px;
  --ss-touch: 44px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --ss-bg: #0e1116;
    --ss-surface: #171b24;
    --ss-text: #eef0f4;
    --ss-muted: #b4bccb;
    --ss-primary: #3db8b0;
    --ss-primary-ink: #0e1116;
    --ss-success: #34d399;
    --ss-danger: #f87171;
    --ss-border: rgba(255, 255, 255, 0.1);
    --ss-focus: #3db8b0;
  }
}

[data-theme="dark"] {
  color-scheme: dark;
  --ss-bg: #0e1116;
  --ss-surface: #171b24;
  --ss-text: #eef0f4;
  --ss-muted: #b4bccb;
  --ss-primary: #3db8b0;
  --ss-primary-ink: #0e1116;
  --ss-success: #34d399;
  --ss-danger: #f87171;
  --ss-border: rgba(255, 255, 255, 0.1);
  --ss-focus: #3db8b0;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scrollbar-gutter: stable; }
body {
  margin: 0;
  background: var(--ss-bg);
  color: var(--ss-text);
  font-family: var(--ss-font);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--ss-primary); }
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 3px solid var(--ss-focus);
  outline-offset: 2px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--ss-border);
  background: color-mix(in srgb, var(--ss-surface) 88%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 64px;
}
.wrap { max-width: 960px; margin: 0 auto; padding: 0 20px; }
.brand {
  font-family: var(--ss-font);
  font-weight: 700;
  font-size: 20px;
  color: var(--ss-text);
  text-decoration: none;
  letter-spacing: -0.02em;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.brand__mark {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  display: block;
  flex-shrink: 0;
}
.brand span { color: var(--ss-primary); }
.site-header__right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.site-nav a {
  color: var(--ss-text);
  text-decoration: none;
  padding: 8px 12px;
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  border-radius: var(--ss-r-md);
  font-size: 14px;
  font-weight: 500;
  opacity: 0.72;
}
.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--ss-primary);
  background: color-mix(in srgb, var(--ss-primary) 12%, transparent);
  opacity: 1;
}
.site-nav a[href="/app/"] {
  opacity: 1;
  background: var(--ss-primary);
  color: var(--ss-primary-ink);
  font-weight: 600;
  border-radius: var(--ss-r-md);
  padding: 0 14px;
  min-height: 40px;
}
.site-nav a[href="/app/"]:hover {
  background: var(--ss-primary);
  color: var(--ss-primary-ink);
  filter: brightness(0.95);
}
.site-theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--ss-border);
  border-radius: var(--ss-r-md);
  background: var(--ss-surface);
  color: var(--ss-text);
  cursor: pointer;
}
.site-theme-toggle svg { display: block; }
.site-theme-toggle svg[hidden] { display: none !important; }
.site-theme-toggle:hover {
  color: var(--ss-primary);
  border-color: var(--ss-border);
}

main .wrap { max-width: 720px; }
article { padding: 40px 0 24px; }
h1 {
  font-family: var(--ss-font-display);
  font-size: clamp(1.75rem, 1.4rem + 1.5vw, 2.35rem);
  line-height: 1.2;
  margin: 0 0 16px;
  letter-spacing: -0.02em;
}
h2 {
  font-family: var(--ss-font-display);
  font-size: 1.4rem;
  line-height: 1.3;
  margin: 36px 0 12px;
}
h3 { font-size: 1.1rem; margin: 24px 0 8px; }
p, ul, ol { margin: 0 0 16px; }
.lede { font-size: 1.15rem; color: var(--ss-muted); }
ul, ol { padding-left: 24px; }
li { margin-bottom: 8px; }
code {
  font-family: var(--ss-font-mono);
  font-size: 0.9em;
  background: var(--ss-surface);
  border: 1px solid var(--ss-border);
  border-radius: 6px;
  padding: 1px 6px;
}
table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 24px;
  font-size: 15px;
  display: block;
  overflow-x: auto;
}
th, td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--ss-border);
  white-space: nowrap;
}
th { font-weight: 700; background: var(--ss-surface); }
td:first-child, th:first-child { white-space: normal; }
details {
  border: 1px solid var(--ss-border);
  border-radius: var(--ss-r-md);
  margin-bottom: 12px;
  background: var(--ss-surface);
}
summary {
  cursor: pointer;
  padding: 14px 16px;
  font-weight: 600;
  min-height: var(--ss-touch);
}
details .faq-body { padding: 0 16px 16px; color: var(--ss-muted); }
details .faq-body p:last-child { margin-bottom: 0; }
.cta {
  margin: 40px 0;
  padding: 28px;
  background: var(--ss-surface);
  border: 1px solid var(--ss-border);
  border-radius: var(--ss-r-lg);
  text-align: center;
}
.cta h2 { margin-top: 0; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--ss-touch);
  padding: 12px 28px;
  background: var(--ss-primary);
  color: var(--ss-primary-ink);
  font-weight: 700;
  font-size: 16px;
  text-decoration: none;
  border-radius: var(--ss-r-md);
  border: none;
}
.btn:hover { filter: brightness(0.95); }
.site-footer {
  border-top: 1px solid var(--ss-border);
  margin-top: 48px;
  padding: 28px 0 40px;
  color: var(--ss-muted);
  font-size: 14px;
}
.site-footer nav { display: flex; gap: 4px; flex-wrap: wrap; margin-bottom: 12px; }
.site-footer nav a {
  color: var(--ss-muted);
  text-decoration: none;
  padding: 10px 12px;
  min-height: var(--ss-touch);
  display: inline-flex;
  align-items: center;
}
.site-footer nav a:hover { color: var(--ss-text); }
.badge {
  display: inline-block;
  background: var(--ss-surface);
  border: 1px solid var(--ss-border);
  border-radius: 999px;
  padding: 4px 14px;
  font-size: 13px;
  color: var(--ss-muted);
  margin-bottom: 16px;
}
@media (max-width: 480px) {
  h1 { font-size: 1.6rem; }
  .cta { padding: 20px 16px; }
  .site-nav a { padding: 8px 10px; font-size: 13px; }
}