/* ------------------------------------------------------------------
   Right First Time — biobank & ISO 20387 consulting
   Raw CSS, no framework. Design-first draft.
------------------------------------------------------------------ */

:root {
  /* Palette — calm, clinical, trustworthy */
  --petrol-900: #0b2b31;
  --petrol-800: #0f3a42;
  --petrol-700: #145059;
  --petrol-600: #1c6b74;
  --teal-500:   #2a8f97;
  --teal-400:   #46b3ac;
  --mint-200:   #cfeae4;
  --sand-100:   #f6f3ec;
  --paper:      #fbfaf7;
  --surface:    #ffffff;   /* cards, inputs, elevated surfaces */
  --ink-900:    #10231f;
  --ink-700:    #33413d;
  --ink-500:    #5c6b66;
  --line:       #e4e0d6;
  --accent:     #c9863f;   /* warm copper accent */

  --radius-sm: 8px;
  --radius:    16px;
  --radius-lg: 26px;
  --shadow-sm: 0 1px 2px rgba(16, 35, 31, .06), 0 4px 14px rgba(16, 35, 31, .05);
  --shadow-md: 0 10px 30px rgba(16, 35, 31, .10), 0 2px 6px rgba(16, 35, 31, .06);
  --shadow-lg: 0 30px 60px rgba(11, 43, 49, .18);

  --font-body: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-display: 'Sora', var(--font-body);
  --font-brand: 'Sora', var(--font-body);

  --container: 1120px;
  --ease: cubic-bezier(.22, 1, .36, 1);
}

/* ------------------------------------------------------------------
   THEMES — set data-theme on <html> to swap the whole mood.
   Each theme re-maps the same role variables; layout is untouched.
   Roles: petrol-900 = darkest brand surface (footer/contact/trust)
          petrol-800 = primary button / brand
          petrol-700 = hover + gradient dark stop
          petrol-600 = eyebrow / labels
          teal-500/400 = accent (gradient light stop, lines, icons)
          mint-200 = pale accent fill · sand-100 = alt section bg
          paper = page bg · surface = cards/inputs
------------------------------------------------------------------ */

/* Trust Blue — deep, dependable navy-blue. The "exudes trust" option. */
:root[data-theme="trust"] {
  --petrol-900: #0a1f44;
  --petrol-800: #12336e;
  --petrol-700: #1c4a94;
  --petrol-600: #2a5fb0;
  --teal-500:   #2f7fd1;
  --teal-400:   #4f9ce4;
  --mint-200:   #d6e6fb;
  --sand-100:   #eef3fa;
  --paper:      #fbfcfe;
  --surface:    #ffffff;
  --ink-900:    #0e1c33;
  --ink-700:    #334259;
  --ink-500:    #5f6d82;
  --line:       #dbe4f0;
  --accent:     #c98a2f;
}

/* Clinical — bright, cool, precise medical light. */
:root[data-theme="clinical"] {
  --petrol-900: #0f2942;
  --petrol-800: #12559e;
  --petrol-700: #1a6fc4;
  --petrol-600: #2f88d6;
  --teal-500:   #22a5c9;
  --teal-400:   #52c2df;
  --mint-200:   #dbeefb;
  --sand-100:   #eef3f8;
  --paper:      #ffffff;
  --surface:    #ffffff;
  --ink-900:    #0f2033;
  --ink-700:    #334155;
  --ink-500:    #64748b;
  --line:       #e2e8f0;
  --accent:     #e0662f;
}

/* Nordic — muted forest green + stone/greige, Scandinavian and calm. */
:root[data-theme="nordic"] {
  --petrol-900: #202e26;
  --petrol-800: #2f4536;
  --petrol-700: #3d5844;
  --petrol-600: #506a55;
  --teal-500:   #6f8f5f;
  --teal-400:   #8caa78;
  --mint-200:   #dde7d4;
  --sand-100:   #efece2;
  --paper:      #f8f6ef;
  --surface:    #ffffff;
  --ink-900:    #222a23;
  --ink-700:    #414a40;
  --ink-500:    #6a7266;
  --line:       #e2ddce;
  --accent:     #b5623f;
}

/* Midnight — dark, premium, boutique. */
:root[data-theme="midnight"] {
  --petrol-900: #060f18;
  --petrol-800: #12558f;
  --petrol-700: #1a6aad;
  --petrol-600: #6fa8d6;
  --teal-500:   #2f9fd4;
  --teal-400:   #57c6f0;
  --mint-200:   #12304a;
  --sand-100:   #10202c;
  --paper:      #0b1721;
  --surface:    #14242f;
  --ink-900:    #f1f7fb;
  --ink-700:    #c2d3de;
  --ink-500:    #8ba4b3;
  --line:       #21323f;
  --accent:     #e0a94e;
}
:root[data-theme="midnight"] .card-icon,
:root[data-theme="midnight"] .fact-key,
:root[data-theme="midnight"] .eyebrow { color: var(--teal-400); }
:root[data-theme="midnight"] .btn-primary { background: var(--teal-500); color: #04121b; }
:root[data-theme="midnight"] .btn-primary:hover { background: var(--teal-400); color: #04121b; }
:root[data-theme="midnight"] .card-icon { background: var(--mint-200); }

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink-700);
  background: var(--paper);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3 {
  font-family: var(--font-display);
  color: var(--ink-900);
  line-height: 1.14;
  letter-spacing: -0.025em;
  font-weight: 600;
  margin: 0 0 .5em;
}

p { margin: 0 0 1rem; }

a { color: var(--petrol-700); text-decoration: none; }
a:hover { color: var(--teal-500); }

img { max-width: 100%; display: block; }

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1.2rem, 4vw, 2.5rem);
}

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 200;
  background: var(--petrol-800); color: #fff;
  padding: .7rem 1.2rem; border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; }

:focus-visible {
  outline: 3px solid var(--teal-400);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: .5rem;
  font-weight: 600; font-size: .98rem;
  padding: .85rem 1.5rem;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease),
              background .25s var(--ease), color .25s var(--ease);
}
.btn-primary {
  background: var(--petrol-800); color: #fff;
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
  background: var(--petrol-700); color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.btn-ghost {
  background: transparent; color: var(--petrol-800);
  border-color: var(--line);
}
.btn-ghost:hover {
  border-color: var(--teal-400); color: var(--petrol-700);
  transform: translateY(-2px);
}
.btn-block { width: 100%; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(251, 250, 247, .8);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease), background .3s var(--ease);
}
.site-header.scrolled {
  border-bottom-color: var(--line);
  background: rgba(251, 250, 247, .92);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 72px;
}

.brand { display: inline-flex; align-items: center; gap: .65rem; color: var(--ink-900); }
.brand-mark {
  display: grid; place-items: center;
  width: 40px; height: 40px;
}
.brand-mark svg {
  width: 40px; height: 40px; display: block;
  filter: drop-shadow(0 3px 6px rgba(10, 31, 68, .25));
}
.brand-text { display: flex; flex-direction: column; line-height: 1.12; }
.brand-name {
  font-family: var(--font-brand); font-weight: 700; font-size: 1.08rem;
  letter-spacing: -0.02em;
}
.brand-sub { font-size: .72rem; letter-spacing: .04em; text-transform: uppercase; color: var(--ink-500); }

.nav-list {
  display: flex; align-items: center; gap: .4rem;
  list-style: none; margin: 0; padding: 0;
}
.nav-list a {
  display: inline-block;
  padding: .55rem .85rem; border-radius: 999px;
  color: var(--ink-700); font-weight: 500; font-size: .95rem;
  transition: background .2s var(--ease), color .2s var(--ease);
}
.nav-list a:hover { background: var(--sand-100); color: var(--ink-900); }
.nav-list .nav-cta {
  background: var(--petrol-800); color: #fff; margin-left: .3rem;
}
.nav-list .nav-cta:hover { background: var(--petrol-700); color: #fff; }

.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  background: transparent; border: 1px solid var(--line);
  border-radius: 12px; cursor: pointer;
  position: relative;
}
.nav-toggle-bar,
.nav-toggle-bar::before,
.nav-toggle-bar::after {
  content: ""; position: absolute; left: 50%; top: 50%;
  width: 20px; height: 2px; background: var(--ink-900);
  transform: translate(-50%, -50%);
  transition: transform .3s var(--ease), opacity .2s var(--ease);
}
.nav-toggle-bar::before { transform: translate(-50%, -8px); }
.nav-toggle-bar::after  { transform: translate(-50%, 6px); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::before { transform: translate(-50%, -50%) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::after  { transform: translate(-50%, -50%) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  padding: clamp(3.5rem, 8vw, 7rem) 0 clamp(3rem, 6vw, 5rem);
  background:
    radial-gradient(120% 90% at 85% -10%, var(--mint-200) 0%, transparent 55%),
    radial-gradient(90% 70% at 5% 0%, #eaf4f1 0%, transparent 45%),
    var(--paper);
}
.hero-inner { position: relative; z-index: 2; max-width: 820px; }
.hero-glow {
  position: absolute; z-index: 1; inset: auto -10% -40% auto;
  right: -8%; bottom: -30%;
  width: 640px; height: 640px; border-radius: 50%;
  background: radial-gradient(circle, rgba(70,179,172,.22), transparent 65%);
  filter: blur(10px);
}

/* ---------- Video hero ---------- */
.hero--video {
  /* Dark base so light text stays legible even before the clip loads. */
  background: linear-gradient(135deg, #08161c, #0d2a30 60%, #0a1f2540);
  color: #e9f1f0;
  isolation: isolate;
}
.hero-media { position: absolute; inset: 0; z-index: 0; overflow: hidden; }
.hero-video {
  width: 100%; height: 100%; object-fit: cover; display: block;
  /* Fade in once the browser has a frame to show. */
  opacity: 0; transition: opacity 1.2s var(--ease);
}
.hero-video.is-ready { opacity: 1; }
.hero-scrim {
  position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(6,17,23,.9) 0%, rgba(6,17,23,.62) 42%, rgba(6,17,23,.22) 100%),
    linear-gradient(0deg, rgba(6,17,23,.72) 0%, rgba(6,17,23,.12) 55%);
}

/* Light-on-dark text overrides for the video hero */
.hero--video .eyebrow { color: #7fd6cf; }
.hero--video .eyebrow::before { background: #7fd6cf; }
.hero--video .hero-title { color: #fff; }
.hero--video .hero-title em { color: #8fe3db; }
.hero--video .hero-lead { color: #cfe0de; }
.hero--video .hero-stats { border-top-color: rgba(255,255,255,.18); }
.hero--video .stat dt { color: #fff; }
.hero--video .stat dd { color: #a9c1bd; }
.hero--video .btn-ghost {
  color: #fff; border-color: rgba(255,255,255,.4);
  background: rgba(255,255,255,.04);
}
.hero--video .btn-ghost:hover {
  border-color: #8fe3db; color: #fff;
  background: rgba(255,255,255,.1);
}
.hero--video .btn-primary { background: #fff; color: var(--petrol-900); }
.hero--video .btn-primary:hover { background: #eef6f5; color: var(--petrol-900); }

/* Respect users who prefer no motion: drop the video, keep the poster/base. */
@media (prefers-reduced-motion: reduce) {
  .hero-video { display: none; }
}

.eyebrow {
  display: inline-flex; align-items: center; gap: .5rem;
  font-size: .82rem; font-weight: 600; letter-spacing: .08em;
  text-transform: uppercase; color: var(--petrol-600);
  margin: 0 0 1rem;
}
.eyebrow::before {
  content: ""; width: 26px; height: 2px; border-radius: 2px;
  background: var(--teal-400);
}

.hero-title {
  font-size: clamp(2.4rem, 6vw, 4.1rem);
  margin-bottom: 1.1rem;
}
.hero-title em {
  font-style: normal; font-weight: 400; color: var(--petrol-700);
}
.hero-lead {
  font-size: clamp(1.08rem, 2vw, 1.28rem);
  color: var(--ink-700); max-width: 640px; margin-bottom: 2rem;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-bottom: 3rem; }

.hero-stats {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem; margin: 0;
  border-top: 1px solid var(--line); padding-top: 1.8rem;
}
.stat dt { font-family: var(--font-display); font-size: 1.2rem; color: var(--ink-900); font-weight: 600; }
.stat dd { margin: .25rem 0 0; font-size: .92rem; color: var(--ink-500); }

/* ---------- Sections ---------- */
.section { padding: clamp(3.5rem, 8vw, 6.5rem) 0; }
.section-alt { background: var(--sand-100); }

.section-head { max-width: 680px; margin-bottom: 3rem; }
.section-head h2 { font-size: clamp(1.9rem, 4vw, 2.8rem); }
.section-intro { font-size: 1.08rem; color: var(--ink-500); margin: 0; }

/* ---------- Cards ---------- */
.cards {
  display: grid; gap: 1.4rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 2rem 1.8rem;
  box-shadow: var(--shadow-sm);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
}
.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--teal-400);
}
.card-icon {
  display: inline-grid; place-items: center;
  width: 46px; height: 46px; margin-bottom: 1.1rem;
  border-radius: 12px;
  background: var(--mint-200); color: var(--petrol-700);
  font-family: var(--font-display); font-weight: 600; font-size: 1.05rem;
}
.card h3 { font-size: 1.3rem; margin-bottom: .5rem; }
.card p { margin: 0; color: var(--ink-500); font-size: .98rem; }

/* ---------- Timeline ---------- */
.timeline {
  list-style: none; margin: 0; padding: 0;
  display: grid; gap: 1.2rem;
}
.timeline-step {
  display: grid; grid-template-columns: auto 1fr; gap: 1.2rem;
  align-items: start;
  background: var(--paper); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.4rem 1.6rem;
  position: relative;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.section-alt .timeline-step { background: var(--surface); }
.timeline-step:hover { transform: translateX(4px); box-shadow: var(--shadow-sm); }
.timeline-num {
  display: grid; place-items: center;
  width: 44px; height: 44px; border-radius: 50%;
  background: linear-gradient(140deg, var(--petrol-700), var(--teal-500));
  color: #fff; font-family: var(--font-display); font-weight: 600; font-size: 1.15rem;
}
.timeline-body h3 { font-size: 1.2rem; margin-bottom: .2rem; }
.timeline-body p { margin: 0; color: var(--ink-500); }

@media (min-width: 760px) {
  .timeline { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
  .timeline-step { grid-template-columns: 1fr; }
}

/* ---------- Split sections ---------- */
.split {
  display: grid; gap: clamp(2rem, 5vw, 4rem);
  grid-template-columns: 1.1fr .9fr; align-items: center;
}
.split-reverse .split-text { order: 2; }
.split-text h2 { font-size: clamp(1.9rem, 4vw, 2.6rem); }
.split-text p { color: var(--ink-700); }

.link-arrow {
  display: inline-flex; align-items: center; gap: .5rem;
  font-weight: 600; margin-top: .5rem;
}
.link-arrow svg { transition: transform .25s var(--ease); }
.link-arrow:hover svg { transform: translateX(4px); }

.facts {
  list-style: none; margin: 0; padding: 0;
  display: grid; gap: .6rem;
}
.facts li {
  display: grid; gap: .15rem;
  background: var(--surface); border: 1px solid var(--line);
  border-left: 3px solid var(--teal-400);
  border-radius: var(--radius-sm);
  padding: 1rem 1.2rem;
}
.section-alt .facts li { background: var(--paper); }
.fact-key { font-size: .78rem; letter-spacing: .06em; text-transform: uppercase; color: var(--petrol-600); font-weight: 600; }
.fact-val { color: var(--ink-700); }

/* Wide facts grid — used for the background/CV block */
.facts--wide {
  margin-top: clamp(2rem, 4vw, 3rem);
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

/* Competency tags */
.tag-list {
  list-style: none; margin: 1.4rem 0 0; padding: 0;
  display: flex; flex-wrap: wrap; gap: .55rem;
}
.tag-list li {
  font-size: .86rem; font-weight: 600; color: var(--petrol-700);
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 999px; padding: .4rem .85rem;
}
.section-alt .tag-list li { background: var(--paper); }

/* Highlighted note / callout (e.g. interpreting the standard) */
.note-card {
  max-width: 900px;
  margin-top: clamp(2rem, 4vw, 3rem);
  background: var(--paper);
  border: 1px solid var(--line);
  border-left: 4px solid var(--teal-400);
  border-radius: var(--radius);
  padding: clamp(1.5rem, 3vw, 2.25rem);
  box-shadow: var(--shadow-sm);
}
.note-card h3 { margin-top: 0; }
.note-card p { color: var(--ink-500); }
.note-card p:last-child { margin-bottom: 0; }

/* ---------- Concept (Right First Time explainer) ---------- */
.concept { background: var(--paper); }
.concept-inner { max-width: 820px; margin-inline: auto; text-align: center; }
.concept-lead {
  font-size: clamp(1.15rem, 2.4vw, 1.4rem);
  color: var(--ink-700); line-height: 1.5;
  max-width: 44ch; margin: 0 auto;
}
.concept-cols {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  margin-top: clamp(2rem, 4vw, 3rem); text-align: left;
}
.concept-col {
  padding-top: 1.25rem;
  border-top: 3px solid var(--teal-400);
}
.concept-col h3 { font-size: 1.15rem; }
.concept-col p { color: var(--ink-500); margin: 0; }
@media (max-width: 640px) {
  .concept-cols { grid-template-columns: 1fr; }
}

.signature {
  font-family: var(--font-brand); font-weight: 600;
  font-size: 1.1rem; letter-spacing: -0.02em;
  color: var(--petrol-700); margin-top: 1.5rem;
}

/* Portrait placeholder */
.portrait { display: grid; place-items: center; }
.portrait-frame {
  width: min(320px, 80%); aspect-ratio: 4 / 5;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 120% at 30% 20%, var(--teal-400), var(--petrol-800));
  display: grid; place-items: center;
  box-shadow: var(--shadow-lg);
  position: relative; overflow: hidden;
}
.portrait-frame::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(11,43,49,.35));
}
.portrait-initials {
  font-family: var(--font-display); font-size: 3.4rem; font-weight: 600;
  color: rgba(255,255,255,.9); letter-spacing: .05em; position: relative; z-index: 2;
}

/* ---------- Contact ---------- */
.contact { background: var(--paper); }
.contact-card {
  display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 4rem);
  background: var(--petrol-900); color: #e6f0ee;
  border-radius: var(--radius-lg);
  padding: clamp(2rem, 5vw, 3.5rem);
  box-shadow: var(--shadow-lg);
  position: relative; overflow: hidden;
}
.contact-card::before {
  content: ""; position: absolute; inset: auto -20% -60% auto;
  width: 460px; height: 460px; border-radius: 50%;
  background: radial-gradient(circle, rgba(70,179,172,.25), transparent 65%);
}
.contact-text { position: relative; z-index: 2; }
.contact-text h2 { color: #fff; font-size: clamp(1.7rem, 3.5vw, 2.4rem); }
.contact-text p { color: #b9cdca; }
.contact-meta { list-style: none; margin: 1.8rem 0 0; padding: 0; display: grid; gap: .8rem; }
.contact-meta li { display: flex; align-items: center; gap: .7rem; color: #cfe0dd; font-size: .96rem; }
.contact-meta svg { color: var(--teal-400); flex: none; }

.contact-email {
  position: relative; z-index: 2;
  background: var(--paper); border-radius: var(--radius);
  padding: clamp(1.4rem, 3vw, 2rem);
  color: var(--ink-700);
}
.contact-email-note {
  margin: 1rem 0 0;
  font-size: .9rem;
  overflow-wrap: anywhere;
}

/* ---------- Footer ---------- */
.site-footer { background: var(--petrol-900); color: #a9bfbc; padding: 3rem 0; }
.footer-inner {
  display: flex; flex-wrap: wrap; gap: 1.5rem 2rem;
  align-items: center; justify-content: space-between;
}
.footer-brand { display: flex; flex-direction: column; }
.footer-brand .brand-name { color: #fff; }
.footer-tag { font-size: .85rem; color: #7f9996; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 1.2rem; }
.footer-nav a { color: #cddcda; font-size: .93rem; }
.footer-nav a:hover { color: #fff; }
.footer-legal { width: 100%; margin: 0; font-size: .82rem; color: #6f8783; border-top: 1px solid rgba(255,255,255,.08); padding-top: 1.4rem; }

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0; transform: translateY(22px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .split, .split-reverse .split-text { grid-template-columns: 1fr; }
  .split-reverse .split-text { order: 0; }
  .contact-card { grid-template-columns: 1fr; }
  .portrait { order: -1; }
}

@media (max-width: 720px) {
  .nav-toggle { display: block; }
  .nav-list {
    position: absolute; top: 72px; right: 0; left: 0;
    flex-direction: column; align-items: stretch; gap: .2rem;
    background: var(--paper); border-bottom: 1px solid var(--line);
    padding: 1rem clamp(1.2rem, 4vw, 2.5rem) 1.5rem;
    box-shadow: var(--shadow-md);
    transform: translateY(-140%);
    transition: transform .35s var(--ease);
    max-height: calc(100vh - 72px); overflow: auto;
  }
  .nav-list.open { transform: translateY(0); }
  .nav-list a { padding: .8rem 1rem; }
  .nav-list .nav-cta { margin: .4rem 0 0; text-align: center; }
  .hero-stats { grid-template-columns: 1fr; gap: 1rem; }
}