/* Shared design tokens + layout primitives for the Kalorie marketing/docs pages. */

:root {
  color-scheme: light;
  --bg: #ffffff;
  --bg-element: #F0F0F3;
  --card-bg: #ffffff;
  --text: #000000;
  --text-secondary: #60646C;
  --accent: #3c87f7;
  --accent-soft: rgba(60,135,247,0.12);
  --border: rgba(228,228,231,0.8);
  --ring-protein: #DC2626;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #000000;
  --bg-element: #212225;
  --card-bg: #18181b;
  --text: #ffffff;
  --text-secondary: #B0B4BA;
  --accent-soft: rgba(60,135,247,0.18);
  --border: rgba(63,63,70,0.6);
  --ring-protein: #FF6B6B;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #000000;
    --bg-element: #212225;
    --card-bg: #18181b;
    --text: #ffffff;
    --text-secondary: #B0B4BA;
    --accent-soft: rgba(60,135,247,0.18);
    --border: rgba(63,63,70,0.6);
    --ring-protein: #FF6B6B;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Spline Sans', Inter, ui-sans-serif, system-ui, -apple-system, sans-serif;
}
a { text-decoration: none; }

.nav-bar { border-bottom: 1px solid var(--border); }
.nav-inner {
  max-width: 1120px; margin: 0 auto; padding: 18px 40px;
  display: flex; align-items: center; justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand img { width: 32px; height: 32px; border-radius: 9px; display: block; }
.brand span { font-size: 18px; font-weight: 700; color: var(--text); letter-spacing: -0.01em; }
.theme-toggle {
  width: 40px; height: 40px; border-radius: 999px; border: 1px solid var(--border);
  background: var(--bg-element); display: flex; align-items: center; justify-content: center;
  cursor: pointer; padding: 0; flex-shrink: 0;
}
.theme-toggle svg { stroke: var(--text); }

footer.site-footer { border-top: 1px solid var(--border); }
.footer-inner {
  max-width: 1120px; margin: 0 auto; padding: 28px 40px; display: flex; align-items: center;
  justify-content: space-between; flex-wrap: wrap; gap: 12px;
}
.footer-inner .copyright { font-size: 13px; color: var(--text-secondary); }
.footer-links { display: flex; gap: 20px; }
.footer-links a { font-size: 13px; color: var(--text-secondary); font-weight: 600; }
.footer-links a:hover { color: var(--text); }

.page-wrap { max-width: 680px; margin: 0 auto; padding: 56px 40px 72px; }
.page-wrap h1 { font-size: 30px; font-weight: 700; letter-spacing: -0.01em; margin: 0 0 8px; color: var(--text); }
.page-wrap .subtitle { color: var(--text-secondary); font-size: 16px; margin: 0 0 40px; line-height: 1.5; }
.page-wrap .updated { color: var(--text-secondary); font-size: 14px; margin: 0 0 36px; }
.page-wrap h2 { font-size: 18px; font-weight: 600; margin: 36px 0 10px; color: var(--text); }
.page-wrap p, .page-wrap li { font-size: 15px; color: var(--text-secondary); line-height: 1.6; }
.page-wrap ul { padding-left: 20px; margin: 10px 0; }
.page-wrap li { margin-bottom: 6px; }
.page-wrap a { color: var(--accent); font-weight: 600; }
.page-wrap a:hover { text-decoration: underline; }

.card {
  background: var(--bg-element); border: 1px solid var(--border); border-radius: 20px;
  padding: 24px; margin-bottom: 20px;
}
.card h2 { margin-top: 0; font-size: 17px; }
.card p { margin: 0; }

table.data-table { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: 14px; }
table.data-table th, table.data-table td {
  text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: top;
}
table.data-table th { color: var(--text-secondary); font-weight: 600; }
table.data-table td { color: var(--text-secondary); }

details.faq { border-bottom: 1px solid var(--border); padding: 16px 0; }
details.faq:first-of-type { border-top: 1px solid var(--border); }
details.faq summary {
  cursor: pointer; font-weight: 600; font-size: 15px; list-style: none; color: var(--text);
}
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::after { content: "+"; float: right; color: var(--text-secondary); }
details.faq[open] summary::after { content: "\2212"; }
details.faq p { color: var(--text-secondary); font-size: 15px; margin: 12px 0 0; line-height: 1.6; }

@media (max-width: 640px) {
  .nav-inner, .page-wrap, .footer-inner { padding-left: 20px; padding-right: 20px; }
}