/* ═══════════════════════════════════════════════════════════════════════
   EVER LAB — shared stylesheet for the detail pages
   (bio-age.html, training.html, recovery.html)

   These pages hold the in-depth content that used to live inside the
   inline "expand" panels on the homepage. Making them real pages means
   the user is never trapped ("how do I close this?") — a sticky top bar
   with a persistent "back to home" link is always visible.
   ═══════════════════════════════════════════════════════════════════════ */

:root {
  --bg: #EDE8E3;
  --bg-warm: #E1DDD6;
  --paper: #F4F0EB;
  --sage-soft: #CDDFB7;
  --sage:      #8DAE92;
  --sage-deep: #6B8B70;
  --ink: #141414;
  --ink-soft: #3a3a36;
  --warm-gray: #76726C;
  --shadow-sm: 0 4px 18px rgba(20, 20, 20, 0.05);
  --shadow-md: 0 12px 30px rgba(20, 20, 20, 0.10);
  --shadow-lg: 0 24px 60px rgba(20, 20, 20, 0.16);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

/* Global brand rule — <strong>/<b> never stand out visually (semantic only) */
strong, b { font-weight: inherit !important; color: inherit !important; }

body {
  font-family: 'Poppins', 'Assistant', sans-serif;
  background: var(--bg);
  color: var(--ink);
  font-weight: 300;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
::selection { background: var(--sage); color: #fff; }

/* ─────────── Sticky top bar — always-visible "back to home" ─────────── */
.detail-bar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: 16px 32px;
  background: rgba(244, 240, 235, 0.92);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid rgba(107, 139, 112, 0.16);
}
.detail-back {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: 'Poppins', 'Assistant', sans-serif;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--sage-deep);
  text-decoration: none;
  padding: 9px 18px 9px 14px;
  border: 1px solid rgba(107, 139, 112, 0.35);
  border-radius: 999px;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.detail-back svg { width: 15px; height: 15px; flex-shrink: 0; }
.detail-back:hover {
  background: var(--sage-deep);
  color: #fff;
  border-color: var(--sage-deep);
}
.detail-logo {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  text-decoration: none;
  line-height: 1;
}
.detail-logo img {
  height: 60px;
  width: auto;
  display: block;
  margin: -16px 0;
  /* Logo PNG ships with a white background; multiply blends it into the cream bar */
  mix-blend-mode: multiply;
}

/* ─────────── Content wrapper ─────────── */
.detail-main {
  padding: 80px 32px 40px;
  position: relative;
}
.vexpand-inner { max-width: 1320px; margin: 0 auto; }

.chapter-eyebrow {
  font-family: 'Poppins', 'Assistant', monospace;
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--warm-gray);
  margin-bottom: 28px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 14px;
}
.chapter-eyebrow .eyebrow-line {
  display: inline-block;
  width: 40px;
  height: 1px;
  background: var(--sage-deep);
  opacity: 0.5;
}

.vexpand-header { margin-bottom: 60px; }
.vexpand-header.centered { display: block; text-align: center; }
.vexpand-header.centered > div { max-width: 900px; margin: 0 auto; }

.vexpand-eyebrow {
  font-family: 'Poppins', 'Assistant', monospace;
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--sage-deep);
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
}
.vexpand-eyebrow::before {
  content: '';
  width: 36px;
  height: 1px;
  background: var(--sage-deep);
}

.vexpand-title {
  font-family: 'Poppins', 'Assistant', serif;
  font-weight: 300;
  font-size: clamp(32px, 3.5vw, 44px);
  line-height: 1.15;
  color: var(--ink);
  letter-spacing: -0.022em;
}
.vexpand-title .em {
  font-family: 'Poppins', 'Assistant', serif;
  font-style: italic;
  font-weight: 300;
  color: var(--sage-deep);
  display: block;
  margin-top: 4px;
}
.vexpand-title-new {
  font-family: 'Poppins', 'Assistant', serif;
  font-weight: 300;
  font-size: clamp(32px, 3.5vw, 44px);
  line-height: 1.15;
  letter-spacing: -0.022em;
  color: var(--ink);
  margin: 0 0 24px;
  text-align: center;
}
.vexpand-intro {
  font-family: 'Poppins', 'Assistant', sans-serif;
  font-size: 17px;
  line-height: 1.85;
  color: var(--ink-soft);
  font-weight: 300;
  max-width: 900px;
  margin: 0 auto;
}

.vexpand-context {
  max-width: 780px;
  margin: 0 auto 40px;
  text-align: right;
  padding: 0 32px;
}
.vexpand-how {
  max-width: 780px;
  margin: 0 auto 70px;
  text-align: right;
  font-family: 'Poppins', 'Assistant', sans-serif;
  font-size: 18px;
  line-height: 1.9;
  color: var(--ink-soft);
  font-weight: 300;
  padding: 0 32px;
}
.vexpand-how strong { font-weight: 500; color: var(--ink); }
.vexpand-answer {
  font-family: 'Poppins', 'Assistant', sans-serif;
  font-size: 18px;
  line-height: 1.9;
  color: var(--ink-soft);
  font-weight: 300;
  margin-bottom: 18px;
}
.vexpand-answer strong { font-weight: 500; color: var(--ink); }
.vexpand-subtitle {
  font-family: 'Poppins', 'Assistant', serif;
  font-weight: 300;
  font-size: clamp(24px, 2.6vw, 36px);
  line-height: 1.25;
  color: var(--ink);
  text-align: center;
  letter-spacing: -0.01em;
  max-width: 880px;
  margin: 0 auto 44px;
  padding: 0 32px;
}

/* ─────────── Cards grid ─────────── */
.vexpand-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}
.vexpand-grid.cols-2 { grid-template-columns: repeat(2, 1fr); gap: 28px; }
.vexpand-grid.cols-2 .tech-img { aspect-ratio: 5/3; }
.vexpand-grid.cols-3 { grid-template-columns: repeat(3, 1fr); gap: 24px; }
.vexpand-grid.cols-3 .tech-img { aspect-ratio: 4/3; }

.tech-card {
  background: var(--paper);
  display: flex;
  flex-direction: column;
  transition: transform 0.4s, box-shadow 0.4s;
  align-self: stretch;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid rgba(20, 20, 20, 0.08);
  box-shadow: var(--shadow-sm);
}
.tech-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.tech-card .tech-img { flex: 0 0 auto; }
.tech-card .tech-content { flex: 1 1 auto; }
.tech-img {
  aspect-ratio: 4/3;
  background-size: cover;
  background-position: center;
  margin: 14px 14px 0;
  border-radius: 14px;
  overflow: hidden;
}
.tech-icon {
  height: 200px;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--sage-deep);
  margin: 14px 14px 0;
  border-radius: 14px;
  overflow: hidden;
}
.tech-icon svg { width: 152px; height: auto; max-height: 120px; }

/* bio-age category cards — sage icon header on white card */
.bio-cards .tech-card {
  background: var(--paper);
  border: 1px solid rgba(20, 20, 20, 0.06);
  box-shadow: 0 8px 28px rgba(107, 139, 112, 0.10), 0 2px 6px rgba(107, 139, 112, 0.06);
}
.bio-cards .tech-icon {
  background:
    radial-gradient(ellipse 60% 55% at 22% 18%, rgba(244, 240, 235, 0.22) 0%, rgba(244, 240, 235, 0) 65%),
    radial-gradient(ellipse 70% 60% at 78% 32%, rgba(107, 139, 112, 0.30) 0%, rgba(107, 139, 112, 0) 70%),
    radial-gradient(ellipse 80% 70% at 70% 100%, rgba(107, 139, 112, 0.40) 0%, rgba(107, 139, 112, 0) 78%),
    linear-gradient(135deg, #9BB89F 0%, #8DAE92 48%, #7FA086 100%);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.16);
}

.tech-content {
  padding: 42px 38px 44px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.tech-label {
  font-family: 'Poppins', 'Assistant', monospace;
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--sage-deep);
  margin-bottom: 18px;
  text-align: center;
}
.tech-title {
  font-family: 'Poppins', 'Assistant', sans-serif;
  font-weight: 500;
  font-size: clamp(28px, 2.4vw, 36px);
  line-height: 1.15;
  letter-spacing: 0.04em;
  text-align: center;
  margin-bottom: 32px;
  color: var(--ink);
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(20, 20, 20, 0.12);
  direction: ltr;
  min-height: calc(2 * 1.15em + 28px);
  display: flex;
  align-items: flex-end;
  justify-content: center;
}
.tech-bullets { list-style: none; margin: 0; padding: 0; }
.tech-bullets li {
  position: relative;
  padding-right: 26px;
  margin-bottom: 22px;
  font-family: 'Poppins', 'Assistant', sans-serif;
  font-size: 17px;
  line-height: 1.9;
  color: var(--ink-soft);
  font-weight: 300;
}
.tech-bullets li:last-child { margin-bottom: 0; }
.tech-bullets li::before {
  content: '·';
  position: absolute;
  right: 0;
  top: 0;
  color: var(--sage-deep);
  font-weight: 500;
  font-size: 1.4em;
  line-height: 1;
}
.tech-bullets li strong { font-weight: 500; color: var(--ink); }
.tech-paragraph {
  margin: 0;
  font-family: 'Poppins', 'Assistant', sans-serif;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
  font-weight: 300;
  letter-spacing: -0.005em;
}
.tech-paragraph strong { font-weight: 500; color: var(--ink); }

.tech-stat {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-top: auto;
  padding-top: 22px;
  border-top: 1px solid rgba(20, 20, 20, 0.12);
  direction: rtl;
}
.tech-stat .stat-label {
  font-family: 'Poppins', 'Assistant', sans-serif;
  font-weight: 300;
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--ink-soft);
  white-space: nowrap;
}
.tech-stat .stat-num {
  font-family: 'Poppins', 'Assistant', sans-serif;
  font-size: 30px;
  font-weight: 300;
  color: var(--sage-deep);
  letter-spacing: -0.012em;
  direction: rtl;
  unicode-bidi: isolate;
  white-space: nowrap;
  text-shadow: 0 0 18px rgba(107, 139, 112, 0.30), 0 0 36px rgba(205, 223, 183, 0.20);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.tech-stat .stat-num .arrow { font-size: 22px; color: var(--sage-deep); }
.tech-stat .stat-num .arrow.down { color: var(--warm-gray); }

/* ─────────── Bottom CTA band ─────────── */
.detail-cta {
  background: linear-gradient(135deg, var(--sage) 0%, var(--sage-deep) 100%);
  color: #fff;
  text-align: center;
  padding: 80px 32px 88px;
  margin-top: 60px;
}
.detail-cta h2 {
  font-family: 'Poppins', 'Assistant', serif;
  font-weight: 300;
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1.25;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}
.detail-cta p {
  font-size: 16px;
  font-weight: 300;
  line-height: 1.7;
  max-width: 520px;
  margin: 0 auto 32px;
  opacity: 0.92;
}
.detail-cta-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}
.detail-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 15px 32px;
  border-radius: 8px;
  font-family: 'Poppins', 'Assistant', sans-serif;
  font-weight: 600;
  font-size: 15.5px;
  text-decoration: none;
  transition: background 0.25s ease, color 0.25s ease, transform 0.25s ease;
}
.detail-cta-btn-primary { background: #fff; color: var(--sage-deep); }
.detail-cta-btn-primary:hover { transform: translateY(-2px); background: #f4f0eb; }
.detail-cta-btn-secondary {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.55);
}
.detail-cta-btn-secondary:hover { background: rgba(255, 255, 255, 0.14); border-color: #fff; }

/* ─────────── Responsive ─────────── */
@media (max-width: 900px) {
  .detail-bar { padding: 12px 18px; }
  .detail-main { padding: 56px 20px 30px; }
  .vexpand-header { margin-bottom: 44px; }
  .vexpand-grid,
  .vexpand-grid.cols-2,
  .vexpand-grid.cols-3 { grid-template-columns: 1fr; gap: 22px; }
  .tech-content { padding: 32px 26px 34px; }
  .detail-logo img { height: 50px; margin: -13px 0; }
  .detail-cta { padding: 60px 22px 66px; }
}

/* Small mobile: compact the back pill so it clears the centered logo */
@media (max-width: 600px) {
  .detail-back { padding: 8px 14px 8px 11px; font-size: 13px; gap: 6px; }
  .detail-back svg { width: 14px; height: 14px; }

  /* Larger text for the 40+ audience */
  .tech-paragraph { font-size: 16.5px; line-height: 1.75; }
  .tech-bullets li { font-size: 16.5px; line-height: 1.8; }
  .vexpand-intro { font-size: 16.5px; line-height: 1.8; }
  .detail-cta p { font-size: 16.5px; line-height: 1.7; }
  .detail-cta-btn { font-size: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .tech-card, .detail-back, .detail-cta-btn { transition: none; }
  .tech-card:hover, .detail-cta-btn-primary:hover { transform: none; }
}

  /* Site footer */
  .site-footer { background: var(--paper); border-top: 1px solid rgba(107, 139, 112, 0.16); padding: 58px 32px 46px; text-align: center; }
  .site-footer-links { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 12px 28px; margin-bottom: 28px; }
  .site-footer-links a { color: var(--ink-soft); text-decoration: none; font-size: 14px; letter-spacing: 0.01em; transition: color 0.2s; }
  .site-footer-links a:hover { color: var(--sage-deep); }
  .site-footer-disclaimer { max-width: 640px; margin: 0 auto 30px; font-size: 13px; line-height: 1.7; color: var(--warm-gray); }
  .site-footer-social { display: flex; justify-content: center; gap: 16px; margin-bottom: 28px; }
  .site-footer-social a { width: 42px; height: 42px; border-radius: 50%; display: flex; align-items: center; justify-content: center; color: var(--sage-deep); border: 1px solid rgba(107, 139, 112, 0.32); transition: background 0.22s, color 0.22s, border-color 0.22s, transform 0.22s; }
  .site-footer-social a:hover { background: var(--sage-deep); color: #fff; border-color: var(--sage-deep); transform: translateY(-2px); }
  .site-footer-social svg { width: 18px; height: 18px; }
  .site-footer-copy { font-size: 12.5px; color: var(--warm-gray); letter-spacing: 0.03em; }
  @media (max-width: 600px) { .site-footer { padding: 44px 20px 36px; } .site-footer-links { gap: 10px 20px; } .site-footer-links a { font-size: 13.5px; } }