/* static/css/landing/about.css
   About page. Same design language and palette as the home and test-detail
   pages (Inter + Libre Baskerville, #274285 primary, #1b2740 ink). Scoped
   under `.ab`. */

.ab {
  --ink: #1b2740; --body: #525f79; --muted: #7a879f; --soft: #94a1bc;
  --primary: #274285; --primary-2: #2f4c97; --line: #e6ebf6;
  font-family: "Inter", system-ui, sans-serif; color: #2b3242;
  padding-bottom: 60px;
}
.ab .container { max-width: 1000px; }

.ab-eyebrow { font-size: 11px; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--soft); margin: 0; }
.ab-eyebrow.light { color: #9fb4e6; }
.ab-h2 { font-size: clamp(1.6rem, 2.8vw, 2rem); font-weight: 800; letter-spacing: -.02em; color: var(--ink); margin: 10px 0 0; }
.ab-h2.light { color: #fff; }

.ab-btn {
  display: inline-flex; align-items: center; gap: 10px; height: 52px; padding: 0 28px;
  border-radius: 12px; background: var(--primary); color: #fff; text-decoration: none;
  font-weight: 700; font-size: 15px; box-shadow: 0 10px 26px rgba(39,66,133,.24);
  transition: background .18s ease, transform .18s ease;
}
.ab-btn:hover { background: var(--primary-2); color: #fff; transform: translateY(-1px); }
.ab-btn.light { background: #fff; color: var(--primary); box-shadow: none; }
.ab-btn.light:hover { background: #eef2fb; color: var(--primary); }

/* Hero */
.ab-hero { text-align: center; max-width: 720px; margin: 0 auto; padding: 72px 0 8px; }
.ab-title { font-size: clamp(2.2rem, 4.6vw, 3.1rem); font-weight: 800; line-height: 1.06; letter-spacing: -.03em; color: var(--ink); margin: 18px 0 0; text-wrap: balance; }
.ab-lead { font-size: 1.15rem; line-height: 1.62; color: var(--body); margin: 22px auto 30px; max-width: 56ch; text-wrap: pretty; }

/* Full-width banner */
.ab-banner { margin-top: 48px; }
.ab-banner-img { display: block; width: 100%; aspect-ratio: 16 / 6; object-fit: cover; border-radius: 20px; }

/* Section rhythm */
.ab-section { margin-top: 0; }
.ab-head-center { text-align: center; max-width: 640px; margin: 0 auto 36px; }

/* Mission: two columns — slightly more breathing room after the banner */
.ab-mission { display: grid; grid-template-columns: .85fr 1.15fr; gap: 48px; align-items: start;
  background: #f7faff; border: 1px solid #e9eff9; border-radius: 20px; padding: 44px; margin: 52px 0; }
.ab-mission-body p { margin: 0; font-size: 1.05rem; line-height: 1.7; color: var(--body); }

/* What we do: 3 steps */
.ab-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.ab-step { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 28px 26px; box-shadow: 0 6px 20px rgba(39,66,133,.05); }
.ab-step-ic { width: 46px; height: 46px; border-radius: 13px; display: inline-flex; align-items: center; justify-content: center; background: #eef2fb; color: var(--primary); }
.ab-step-ic svg { width: 22px; height: 22px; }
.ab-step h3 { font-size: 1.06rem; font-weight: 700; color: var(--ink); margin: 18px 0 6px; letter-spacing: -.01em; }
.ab-step p { margin: 0; font-size: .9rem; line-height: 1.6; color: var(--muted); }

/* Science: dark band */
.ab-science { display: grid; grid-template-columns: .85fr 1.15fr; gap: 48px; align-items: start;
  background: linear-gradient(135deg, #1b2740, #274285); border-radius: 20px; padding: 48px 44px;
  box-shadow: 0 18px 44px rgba(39,66,133,.22); margin-top: 0; }
.ab-science-body p { margin: 0; font-size: 1.05rem; line-height: 1.7; color: #cdd8ef; }

/* Values: 3 cards */
.ab-values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.ab-value { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 0 0 28px; box-shadow: 0 6px 20px rgba(39,66,133,.05); position: relative; overflow: hidden; }
.ab-value::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, #4a6fcf, #7b9ef5); border-radius: 16px 16px 0 0; z-index: 1; }
.ab-value-img { display: block; width: 100%; height: 180px; object-fit: cover; border-radius: 16px 16px 0 0; }
.ab-value h3 { font-size: 1.06rem; font-weight: 700; color: var(--ink); margin: 20px 26px 8px; letter-spacing: -.01em; }
.ab-value p { margin: 0 26px; font-size: .9rem; line-height: 1.6; color: var(--muted); }

/* Final CTA */
.ab-cta-wrap { padding-bottom: 40px; }
.ab-cta { background: linear-gradient(135deg, #274285, #3357a0); border-radius: 20px; padding: 52px 40px; text-align: center; box-shadow: 0 18px 44px rgba(39,66,133,.28); }
.ab-cta h2 { font-size: clamp(1.5rem, 2.6vw, 1.85rem); font-weight: 800; letter-spacing: -.02em; color: #fff; margin: 0; }
.ab-cta p { font-size: 15.5px; color: rgba(255,255,255,.75); margin: 12px auto 28px; max-width: 46ch; line-height: 1.6; }
.ab-cta .ab-btn.light {
  display: inline-flex; align-items: center; gap: 10px;
  height: 52px; padding: 0 30px;
  border-radius: 12px;
  background: #fff; color: #274285;
  font-weight: 700; font-size: 15.5px;
  text-decoration: none; border: 0;
  box-shadow: none;
  transition: background .18s, transform .18s;
}
.ab-cta .ab-btn.light:hover { background: #eef2fb; color: #274285; transform: translateY(-2px); }

/* Responsive */
@media (max-width: 820px) {
  .ab-mission, .ab-science { grid-template-columns: 1fr; gap: 20px; padding: 32px 24px; }
  .ab-steps, .ab-values { grid-template-columns: 1fr; }
  .ab-hero { padding-top: 48px; }
  .ab-mission, .ab-science { margin-top: 36px; }
  .ab-banner-img { aspect-ratio: 16 / 9; }
}