/* ===========================================================
   BatterieXLab — Design System
   Navy #16243B · Yellow #FFB627 · Serif headings + Sans body
   =========================================================== */

:root {
  --navy:        #16243B;
  --navy-900:    #0F1A2B;
  --navy-700:    #1E3252;
  --navy-600:    #2A4670;
  --yellow:      #FFB627;
  --yellow-600:  #E89F12;
  --ink:         #1C2433;
  --muted:       #5A6679;
  --line:        #E3E8EF;
  --bg:          #FFFFFF;
  --bg-alt:      #F4F7FA;
  --bg-soft:     #EAF0F6;
  --white:       #FFFFFF;

  --maxw: 1180px;
  --radius: 14px;
  --radius-sm: 9px;
  --shadow-sm: 0 1px 3px rgba(16,26,43,.06), 0 1px 2px rgba(16,26,43,.04);
  --shadow-md: 0 6px 24px rgba(16,26,43,.08), 0 2px 8px rgba(16,26,43,.05);
  --shadow-lg: 0 18px 50px rgba(16,26,43,.14);

  --serif: "Playfair Display", Georgia, "Times New Roman", serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}

/* ---------- Reset ---------- */
*,*::before,*::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1,h2,h3,h4 { margin: 0; font-family: var(--serif); font-weight: 700; line-height: 1.15; color: var(--navy); letter-spacing: -.01em; }
p { margin: 0; }

/* Refined ampersand: clean system serif "&" everywhere (no Playfair — avoids the
   ornate Playfair ampersand and the font-swap flash). */
.amp { font-family: Georgia, "Times New Roman", "Times", serif; font-style: normal; font-weight: 600; font-size: 1.04em; letter-spacing: 0; }

/* ---------- Layout ---------- */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.section { padding: 92px 0; }
.section--alt { background: var(--bg-alt); }
.section--soft { background: var(--bg-soft); }
.section-head { max-width: 720px; margin: 0 auto 56px; text-align: center; }
.section-head.left { margin-left: 0; text-align: left; }
.eyebrow {
  display: inline-block;
  font-family: var(--sans);
  font-size: 13px; font-weight: 700;
  letter-spacing: .18em; text-transform: uppercase;
  color: var(--yellow-600);
  margin-bottom: 14px;
}
.section-head h2 { font-size: clamp(28px, 4vw, 42px); }
.section-head p { margin-top: 16px; color: var(--muted); font-size: 18px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--sans); font-weight: 600; font-size: 16px;
  padding: 13px 26px; border-radius: 999px;
  border: 1.5px solid transparent; cursor: pointer;
  transition: transform .15s ease, background .2s ease, box-shadow .2s ease, color .2s ease;
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--yellow); color: var(--navy-900); }
.btn--primary:hover { background: var(--yellow-600); box-shadow: 0 8px 22px rgba(255,182,39,.35); }
.btn--ghost { background: transparent; color: var(--navy); border-color: var(--line); }
.btn--ghost:hover { border-color: var(--navy); background: var(--navy); color: #fff; }
.btn--light { background: #fff; color: var(--navy-900); }
.btn--light:hover { background: var(--yellow); }
.btn--outline-light { background: transparent; color: #fff; border-color: rgba(255,255,255,.4); }
.btn--outline-light:hover { border-color: var(--yellow); color: var(--yellow); }

/* ---------- Wordmark ---------- */
.wordmark {
  font-family: var(--serif); font-weight: 700;
  color: var(--navy); white-space: nowrap; letter-spacing: -.01em;
}
.wordmark .x { color: var(--yellow); }
.on-dark .wordmark, .wordmark--light { color: #fff; }

/* ---------- Header / Nav ---------- */
.header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.88);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand img { width: 38px; height: 38px; border-radius: 9px; }
.brand .wordmark { font-size: 22px; }
.brand small {
  display: block; font-family: var(--sans); font-weight: 600;
  font-size: 9.5px; letter-spacing: .16em; text-transform: uppercase;
  color: var(--muted); margin-top: -2px;
}
.nav-links { display: flex; align-items: center; gap: 30px; }
.nav-links a {
  font-size: 15px; font-weight: 500; color: var(--ink);
  transition: color .15s ease; position: relative;
}
.nav-links a:hover { color: var(--yellow-600); }
.nav-actions { display: flex; align-items: center; gap: 16px; }

/* Language switch */
.lang {
  display: inline-flex; border: 1px solid var(--line); border-radius: 999px; overflow: hidden;
  font-size: 13px; font-weight: 600;
}
.lang a { padding: 6px 12px; color: var(--muted); transition: background .15s, color .15s; }
.lang a.active { background: var(--navy); color: #fff; }
.lang a:not(.active):hover { background: var(--bg-alt); }

.nav-toggle {
  display: none; width: 44px; height: 44px; border: 0; background: transparent;
  cursor: pointer; align-items: center; justify-content: center;
}
.nav-toggle span { position: relative; width: 22px; height: 2px; background: var(--navy); transition: .2s; }
.nav-toggle span::before, .nav-toggle span::after {
  content: ""; position: absolute; left: 0; width: 22px; height: 2px; background: var(--navy); transition: .2s;
}
.nav-toggle span::before { top: -7px; }
.nav-toggle span::after { top: 7px; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after { top: 0; transform: rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(1100px 500px at 78% -8%, rgba(255,182,39,.10), transparent 60%),
    linear-gradient(160deg, var(--navy) 0%, var(--navy-900) 60%, #0B1422 100%);
  color: #fff;
  padding: 96px 0 104px;
}
/* Equipment photo layer, revealed on the right; navy overlay keeps left text crisp */
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background:
    linear-gradient(100deg,
      var(--navy) 30%,
      rgba(22,36,59,.78) 56%,
      rgba(22,36,59,.42) 78%,
      rgba(11,20,34,.55) 100%),
    url("../assets/hero-lab.jpg") right center / cover no-repeat;
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(900px 480px at 80% 0%, #000 0%, transparent 70%);
}
.hero .container { position: relative; z-index: 1; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center; }
.hero h1 { color: #fff; font-size: clamp(38px, 6vw, 66px); line-height: 1.04; }
.hero h1 .x { color: var(--yellow); }
.hero .tagline {
  display: inline-block; margin-bottom: 22px;
  font-family: var(--sans); font-weight: 700; font-size: 13px;
  letter-spacing: .2em; text-transform: uppercase; color: var(--yellow);
}
.hero .lead { margin-top: 22px; font-size: 20px; color: rgba(255,255,255,.82); max-width: 560px; }
.hero-actions { margin-top: 34px; display: flex; gap: 14px; flex-wrap: wrap; }
.hero-badges { margin-top: 38px; display: flex; flex-wrap: wrap; gap: 8px; }
.hero-badges span {
  font-size: 12.5px; font-weight: 600; letter-spacing: .03em;
  color: rgba(255,255,255,.8);
  border: 1px solid rgba(255,255,255,.18); border-radius: 999px;
  padding: 6px 13px; background: rgba(255,255,255,.04);
}

/* Hero side card — three pillars preview */
.hero-card {
  background: rgba(16,27,46,.62);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 18px; padding: 26px;
  backdrop-filter: blur(10px);
  box-shadow: 0 18px 50px rgba(0,0,0,.32);
}
.hero-card h3 { color: #fff; font-size: 16px; font-family: var(--sans); font-weight: 700; letter-spacing: .04em; text-transform: uppercase; margin-bottom: 18px; }
.hero-pillar { display: flex; gap: 14px; padding: 14px 0; border-top: 1px solid rgba(255,255,255,.1); }
.hero-pillar:first-of-type { border-top: 0; }
.hero-pillar .n {
  flex: none; width: 11.4px; height: 11.4px; border-radius: 50%;
  background: var(--yellow); margin-top: 6px;
}
.hero-pillar b { color: #fff; font-size: 15.5px; display: block; }
.hero-pillar small { color: rgba(255,255,255,.62); font-size: 13.5px; }

/* ---------- Overview graphic ---------- */
.overview { background: var(--bg-alt); }
.overview-figure { margin: 0 auto; max-width: 1080px; }
.overview-zoom {
  display: block; width: 100%; padding: 0; cursor: zoom-in;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; position: relative; box-shadow: var(--shadow-md);
  transition: box-shadow .25s ease, transform .25s ease;
}
.overview-zoom:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.overview-zoom:focus-visible { outline: 3px solid var(--yellow); outline-offset: 3px; }
.overview-zoom img { display: block; width: 100%; height: auto; }
.overview-hint {
  position: absolute; bottom: 14px; right: 14px;
  background: rgba(16,27,46,.86); color: #fff;
  font-family: var(--sans); font-size: 13px; font-weight: 600; letter-spacing: .02em;
  padding: 8px 15px; border-radius: 999px; backdrop-filter: blur(2px);
}

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed; inset: 0; z-index: 1000;
  background: rgba(8,14,24,.93);
  display: flex; align-items: center; justify-content: center; padding: 24px;
}
.lightbox[hidden] { display: none; }
.lightbox img { max-width: 96vw; max-height: 92vh; border-radius: 8px; box-shadow: 0 30px 90px rgba(0,0,0,.5); }
.lightbox-close {
  position: absolute; top: 14px; right: 22px;
  background: none; border: 0; color: #fff; font-size: 42px; line-height: 1;
  cursor: pointer; padding: 6px 12px;
}
.lightbox-close:hover { color: var(--yellow); }

/* ---------- Trust strip ---------- */
.trust { background: var(--navy-900); padding: 22px 0; }
.trust .row { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 14px 30px; }
.trust span { color: rgba(255,255,255,.72); font-size: 14px; font-weight: 600; letter-spacing: .04em; }
.trust .dot { color: var(--yellow); }

/* ---------- Pillars ---------- */
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.pillar {
  display: flex; flex-direction: column;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow-sm);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.pillar:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: #cfd9e6; }
.pillar-top {
  background: linear-gradient(155deg, var(--navy-700), var(--navy));
  color: #fff; padding: 26px 26px 24px; position: relative;
}
.pillar-num {
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--yellow); color: var(--navy-900);
  font-family: var(--serif); font-weight: 700; font-size: 22px;
  display: flex; align-items: center; justify-content: center; margin-bottom: 16px;
}
.pillar-top .kicker { font-size: 12px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; color: var(--yellow); }
.pillar-top h3 { color: #fff; font-size: 24px; margin-top: 4px; }
.pillar-top .promise { margin-top: 12px; font-style: italic; color: rgba(255,255,255,.78); font-size: 15px; }
.pillar-body { padding: 24px 26px 8px; flex: 1; display: flex; flex-direction: column; }
.pillar-body .label { font-size: 12px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin-bottom: 10px; }
.pillar-body p.desc { color: var(--ink); font-size: 15.5px; margin-bottom: 18px; }
.feature-list li {
  position: relative; padding: 5px 0 5px 24px; font-size: 15px; color: var(--ink);
}
.feature-list li::before {
  content: ""; position: absolute; left: 2px; top: 12px;
  width: 7px; height: 7px; border-radius: 2px; background: var(--yellow); transform: rotate(45deg);
}
.pillar-meta {
  margin: 18px 0 0; padding: 16px 26px; border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; gap: 12px; background: var(--bg-alt);
}
.pillar-meta div span { display: block; font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.pillar-meta div b { font-size: 14.5px; color: var(--navy); }
.pillar-foot { padding: 16px 26px 24px; }
.pillar-tag {
  display: block; text-align: center; background: var(--yellow); color: var(--navy-900);
  font-weight: 700; font-size: 14px; padding: 11px; border-radius: 999px;
}

.io-flow { margin-top: auto; padding-top: 18px; }
.io-flow .io { display: block; font-size: 15px; padding: 0; margin-top: 14px; background: none; border-radius: 0; }
.io-flow .io b { display: block; font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); width: auto; margin-bottom: 4px; }
.io-flow .io span { color: var(--ink); }
.io-flow .arrow { display: none; }

/* ---------- Packages ---------- */
.pkg-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.pkg {
  border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; background: #fff;
  box-shadow: var(--shadow-sm); transition: transform .18s, box-shadow .18s;
}
.pkg:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.pkg.combo { background: linear-gradient(160deg, var(--navy-700), var(--navy)); color: #fff; border-color: transparent; }
.pkg.full { background: var(--yellow); border-color: transparent; }
.pkg .pkg-code { font-size: 12px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--yellow-600); }
.pkg.combo .pkg-code { color: var(--yellow); }
.pkg.full .pkg-code { color: var(--navy-900); }
.pkg h3 { font-size: 21px; margin: 8px 0 6px; }
.pkg.combo h3, .pkg.full h3 { color: #fff; }
.pkg.full h3 { color: var(--navy-900); }
.pkg p { font-size: 15px; color: var(--muted); }
.pkg.combo p { color: rgba(255,255,255,.8); }
.pkg.full p { color: var(--navy-700); }
.pkg .pkg-note { margin-top: 14px; font-size: 13.5px; font-style: italic; }

.addons { margin-top: 26px; display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; }
.addon { border: 1px dashed var(--line); border-radius: var(--radius-sm); padding: 18px; background: #fff; }
.addon b { color: var(--navy); font-size: 15px; }
.addon span { display: block; color: var(--muted); font-size: 13.5px; margin-top: 6px; }

/* ---------- Differentiation ---------- */
.diff-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 22px; }
.diff {
  display: flex; gap: 18px; padding: 26px; border-radius: var(--radius);
  background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow-sm);
}
.diff .ic {
  flex: none; width: 50px; height: 50px; border-radius: 12px;
  background: var(--bg-soft); display: flex; align-items: center; justify-content: center;
}
.diff .ic svg { width: 26px; height: 26px; stroke: var(--navy); }
.diff h3 { font-size: 19px; }
.diff p { margin-top: 8px; color: var(--muted); font-size: 15.5px; }

/* ---------- Audience ---------- */
.audience { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.aud {
  text-align: center; padding: 30px 24px; border-radius: var(--radius);
  background: #fff; border: 1px solid var(--line);
}
.aud .ic { width: 54px; height: 54px; margin: 0 auto 16px; border-radius: 14px; background: var(--navy); display:flex; align-items:center; justify-content:center; }
.aud .ic svg { width: 28px; height: 28px; stroke: var(--yellow); }
.aud h3 { font-size: 18px; }
.aud p { margin-top: 8px; color: var(--muted); font-size: 15px; }

/* ---------- Standards ---------- */
.standards { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.standards span {
  background: #fff; border: 1px solid var(--line); border-radius: 999px;
  padding: 10px 18px; font-weight: 600; font-size: 14.5px; color: var(--navy);
}
.standards span small { color: var(--muted); font-weight: 500; }

/* ---------- CTA / Contact ---------- */
.cta {
  background:
    radial-gradient(800px 400px at 15% 120%, rgba(255,182,39,.12), transparent 60%),
    linear-gradient(160deg, var(--navy) 0%, var(--navy-900) 100%);
  color: #fff;
}
.cta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.cta h2 { color: #fff; font-size: clamp(28px, 4vw, 40px); }
.cta p { margin-top: 16px; color: rgba(255,255,255,.8); font-size: 18px; }
.contact-card {
  background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.14);
  border-radius: 18px; padding: 30px;
}
.contact-card .who { display: flex; align-items: center; gap: 14px; margin-bottom: 22px; }
.contact-card .who img { width: 52px; height: 52px; border-radius: 11px; }
.contact-card .who b { color: #fff; font-size: 18px; display: block; }
.contact-card .who span { color: rgba(255,255,255,.65); font-size: 14px; }
.contact-list li { display: flex; align-items: center; gap: 14px; padding: 11px 0; border-top: 1px solid rgba(255,255,255,.1); }
.contact-list li:first-child { border-top: 0; }
.contact-list .ic { flex: none; width: 38px; height: 38px; border-radius: 10px; background: rgba(255,182,39,.15); display:flex; align-items:center; justify-content:center; }
.contact-list .ic svg { width: 19px; height: 19px; stroke: var(--yellow); }
.contact-list a, .contact-list span { color: #fff; font-size: 16px; }
.contact-list a:hover { color: var(--yellow); }

/* ---------- Contact form ---------- */
.form-card { background: #fff; border-radius: 18px; padding: 30px; box-shadow: var(--shadow-lg); }
.form-card h3 { font-size: 21px; }
.form-card .sub { color: var(--muted); font-size: 14.5px; margin: 6px 0 22px; }
.field { margin-bottom: 16px; }
.field label { display: block; margin-bottom: 6px; font-size: 14px; font-weight: 600; color: var(--navy); }
.field input, .field textarea {
  width: 100%; padding: 12px 14px; border: 1.5px solid var(--line); border-radius: 10px;
  font-family: var(--sans); font-size: 15.5px; color: var(--ink); background: #fff;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.field input:focus, .field textarea:focus {
  outline: none; border-color: var(--yellow); box-shadow: 0 0 0 3px rgba(255,182,39,.2);
}
.field textarea { resize: vertical; min-height: 118px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.consent { display: flex; gap: 11px; align-items: flex-start; margin: 6px 0 20px; cursor: pointer; }
.consent input { margin-top: 3px; width: 17px; height: 17px; flex: none; accent-color: var(--yellow-600); }
.consent span { font-size: 13.5px; line-height: 1.55; color: var(--muted); }
.consent a { color: var(--yellow-600); text-decoration: underline; }
.form-card .btn { width: 100%; justify-content: center; }
.form-status { margin-top: 14px; font-size: 14.5px; font-weight: 600; min-height: 1.2em; }
.form-status.ok { color: #1A7F4B; }
.form-status.err { color: #C0392B; }
.hp { position: absolute !important; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
@media (max-width: 420px) { .field-row { grid-template-columns: 1fr; } }

/* ---------- Footer ---------- */
.footer { background: var(--navy-900); color: rgba(255,255,255,.7); padding: 56px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer .brand .wordmark { color: #fff; font-size: 22px; }
.footer-about { margin-top: 16px; font-size: 14.5px; max-width: 320px; line-height: 1.7; }
.footer-tag { margin-top: 14px; color: var(--yellow); font-weight: 600; font-size: 14px; }
.footer h4 { color: #fff; font-family: var(--sans); font-size: 13px; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 16px; }
.footer-links li { padding: 6px 0; }
.footer-links a { font-size: 14.5px; transition: color .15s; }
.footer-links a:hover { color: var(--yellow); }
.footer-bottom {
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between;
  align-items: center; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.1);
  font-size: 13.5px;
}
.footer-bottom a:hover { color: var(--yellow); }

/* ---------- Legal / prose pages ---------- */
.legal-hero {
  background: linear-gradient(160deg, var(--navy) 0%, var(--navy-900) 100%);
  color: #fff; padding: 64px 0;
}
.legal-hero h1 { color: #fff; font-size: clamp(30px, 5vw, 44px); }
.legal-hero p { margin-top: 12px; color: rgba(255,255,255,.7); }
.legal-hero a.back { color: var(--yellow); font-size: 14px; font-weight: 600; }
.prose { max-width: 800px; margin: 0 auto; padding: 64px 0; }
.prose h2 { font-size: 24px; margin: 40px 0 12px; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { font-size: 18px; margin: 26px 0 8px; font-family: var(--sans); color: var(--navy); }
.prose p { margin: 0 0 14px; color: var(--ink); }
.prose ul { margin: 0 0 14px; padding-left: 20px; list-style: disc; }
.prose li { margin: 4px 0; }
.prose a { color: var(--yellow-600); text-decoration: underline; }
.prose .ph {
  background: #FFF6E3; border: 1px dashed var(--yellow); border-radius: 6px;
  padding: 1px 7px; font-weight: 600; color: var(--navy); font-size: .94em;
}
.prose .note {
  background: var(--bg-alt); border-left: 3px solid var(--yellow);
  padding: 14px 18px; border-radius: 0 8px 8px 0; font-size: 15px; color: var(--muted); margin: 0 0 24px;
}

/* ---------- Reveal animation ---------- */
/* Content is visible by default. Hidden initial state applies only when JS is
   active (html.js) so no-JS users and crawlers always see the content. */
.reveal { transition: opacity .6s ease, transform .6s ease; }
.js .reveal { opacity: 0; transform: translateY(22px); }
.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; transform: none; }
  .reveal { transition: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-card { max-width: 480px; }
  /* Stacked layout: push the photo to the lower area, heavier navy veil for readability */
  .hero::before {
    background:
      linear-gradient(180deg,
        var(--navy) 32%,
        rgba(22,36,59,.82) 58%,
        rgba(22,36,59,.55) 100%),
      url("../assets/hero-lab.jpg") center bottom / cover no-repeat;
  }
  .pillars { grid-template-columns: 1fr; max-width: 520px; margin: 0 auto; }
  .pkg-grid { grid-template-columns: 1fr 1fr; }
  .addons { grid-template-columns: 1fr 1fr; }
  .diff-grid { grid-template-columns: 1fr; }
  .audience { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }
  .cta-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  .section { padding: 64px 0; }
  .nav-links, .nav-actions .desktop-cta { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav-links.open {
    display: flex; flex-direction: column; gap: 0;
    position: absolute; top: 72px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--line);
    padding: 8px 24px 20px; box-shadow: var(--shadow-md);
  }
  .nav-links.open a { padding: 14px 0; border-bottom: 1px solid var(--line); width: 100%; }
  .pkg-grid, .addons { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { justify-content: center; text-align: center; }
}
@media (max-width: 420px) {
  body { font-size: 16px; }
  .container { padding: 0 18px; }
}