/* Shared styles for GenieFit blog + tool pages. Tokens mirror index.html. */
:root {
  --bg: #000000;
  --surface: #0e0e0e;
  --card: #121212;
  --lime: #c3f400;
  --lime-dim: #abd600;
  --cyan: #00eefc;
  --magenta: #ff2d6a;
  --text: #e5e2e1;
  --muted: #9a9a9a;
  --border: rgba(0, 238, 252, 0.25);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg); color: var(--text);
  line-height: 1.7; overflow-x: hidden;
}
.mono { font-family: 'JetBrains Mono', monospace; letter-spacing: 0.08em; text-transform: uppercase; }
.container { max-width: 760px; margin: 0 auto; padding: 0 24px; }
a { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Header */
header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(0,0,0,0.85); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav {
  max-width: 1120px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between; height: 64px;
}
.logo { font-weight: 800; font-size: 1.25rem; letter-spacing: -0.02em; color: var(--lime); }
.logo:hover { text-decoration: none; }
.nav-links { display: flex; gap: 24px; }
.nav-links a { font-size: 0.75rem; color: var(--muted); font-weight: 500; }
.nav-links a:hover { color: var(--cyan); text-decoration: none; }
.nav-cta {
  padding: 10px 18px; background: var(--lime); color: #000 !important;
  font-weight: 700; font-size: 0.7rem;
}
.nav-cta:hover { background: var(--lime-dim); text-decoration: none; }
@media (max-width: 600px) { .nav-links { display: none; } }

/* Article */
article, .page { padding: 56px 0 72px; }
.eyebrow { color: var(--cyan); font-size: 0.65rem; margin-bottom: 12px; }
h1 {
  font-size: clamp(1.6rem, 4.5vw, 2.4rem); font-weight: 800;
  line-height: 1.15; letter-spacing: -0.02em; color: var(--text); margin-bottom: 16px;
}
.meta { font-size: 0.7rem; color: var(--muted); margin-bottom: 32px; }
article h2, .page h2 { font-size: 1.35rem; font-weight: 800; color: var(--lime); margin: 40px 0 14px; }
article h3, .page h3 { font-size: 1.05rem; font-weight: 700; color: var(--cyan); margin: 28px 0 10px; }
article p, .page p { color: var(--text); margin-bottom: 16px; font-size: 0.95rem; }
article ul, article ol { margin: 0 0 16px 22px; font-size: 0.95rem; }
article li { margin-bottom: 8px; }
article strong { color: var(--lime); }
.lead { font-size: 1.05rem; color: var(--muted); }

/* Tables */
.table-wrap { overflow-x: auto; margin: 20px 0; border: 1px solid var(--border); }
table { border-collapse: collapse; width: 100%; font-size: 0.85rem; min-width: 480px; }
th {
  background: var(--surface); color: var(--cyan); text-align: left;
  font-size: 0.65rem; font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.08em; text-transform: uppercase;
}
th, td { padding: 12px 14px; border-bottom: 1px solid rgba(255,255,255,0.08); }
td { color: var(--text); }
tr:last-child td { border-bottom: none; }
td.yes { color: var(--lime); }
td.no { color: var(--magenta); }

/* Callouts, CTA */
.callout {
  border-left: 3px solid var(--cyan); background: rgba(0,238,252,0.06);
  padding: 16px 18px; margin: 24px 0; font-size: 0.9rem;
}
.cta-box {
  border: 1px solid var(--lime); background: rgba(195,244,0,0.05);
  padding: 28px; margin: 40px 0 0; text-align: center;
}
.cta-box h2 { margin-top: 0; }
.btn-primary {
  display: inline-block; padding: 14px 24px; background: var(--lime); color: #000 !important;
  font-weight: 800; font-size: 0.8rem; margin-top: 12px;
  box-shadow: 0 0 24px rgba(195, 244, 0, 0.35);
}
.btn-primary:hover { background: var(--lime-dim); text-decoration: none; }

/* FAQ */
.faq { margin-top: 8px; }
.faq h3 { color: var(--text); }
.faq p { color: var(--muted); }

/* Blog index cards */
.post-grid { display: grid; gap: 20px; margin-top: 32px; }
.post-card {
  display: block; background: var(--card); border: 1px solid var(--border);
  padding: 24px; position: relative; overflow: hidden; color: var(--text);
}
.post-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--cyan), transparent);
}
.post-card:hover { border-color: var(--lime); text-decoration: none; }
.post-card .tag { color: var(--cyan); font-size: 0.6rem; }
.post-card h2 { margin: 8px 0 8px; font-size: 1.1rem; color: var(--lime); }
.post-card p { color: var(--muted); font-size: 0.85rem; margin: 0; }

/* Calculator */
.calc {
  background: var(--card); border: 1px solid var(--border);
  padding: 28px; margin: 24px 0;
}
.calc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 600px) { .calc-grid { grid-template-columns: 1fr; } }
.calc label { display: block; font-size: 0.6rem; color: var(--muted); margin-bottom: 6px; }
.calc input, .calc select {
  width: 100%; padding: 12px 14px; background: var(--surface);
  border: 1px solid var(--border); color: var(--text); font-size: 1rem;
  font-family: inherit;
}
.calc input:focus, .calc select:focus { outline: 2px solid var(--cyan); }
.calc-results {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 24px;
}
@media (max-width: 600px) { .calc-results { grid-template-columns: 1fr; } }
.calc-result { text-align: center; padding: 18px 12px; border: 1px solid var(--border); background: var(--surface); }
.calc-result .v { font-size: 1.6rem; font-weight: 800; color: var(--lime); }
.calc-result .l { font-size: 0.6rem; color: var(--muted); margin-top: 4px; }
.calc-note { font-size: 0.7rem; color: var(--muted); margin-top: 16px; }

/* Footer */
footer {
  border-top: 1px solid var(--border); padding: 32px 24px 48px;
  font-size: 0.75rem; color: var(--muted);
}
.footer-inner {
  max-width: 1120px; margin: 0 auto;
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px;
}
footer a { color: var(--muted); }
footer a:hover { color: var(--cyan); }
.footer-links { display: flex; flex-wrap: wrap; gap: 20px; }