/* ============================================================
   Alpha Drive — style.css
   Premium Scandinavian visual identity
   Palette: deep navy / graphite / steel blue / chrome-silver
            / ice blue / dark-ice / white / light gray
   Original architecture — bespoke "ad-" class namespace
   ============================================================ */

/* -------------------- 1. Design tokens -------------------- */
:root {
  /* Core cold palette */
  --ad-navy:        #0d1a2e;   /* deep navy               */
  --ad-navy-soft:   #14263f;   /* navy panel              */
  --ad-graphite:    #263242;   /* graphite                */
  --ad-steel:       #3a5a84;   /* steel blue              */
  --ad-steel-lite:  #5c80ad;   /* lighter steel           */
  --ad-chrome:      #b0becd;   /* chrome silver           */
  --ad-silver:      #cdd8e4;   /* silver                  */
  --ad-ice:         #c6def1;   /* ice blue                */
  --ad-ice-dark:    #7ba7cc;   /* dark ice                */
  --ad-ice-pale:    #eaf3fb;   /* pale ice wash           */
  --ad-white:       #ffffff;
  --ad-gray:        #eef2f6;   /* light gray              */
  --ad-gray-2:      #dde5ee;

  /* Text */
  --ad-ink:         #101d30;
  --ad-ink-soft:    #45566b;
  --ad-on-dark:     #eaf3fb;
  --ad-on-dark-soft:#a9bdd4;

  /* Gradients */
  --ad-grad-deep:   linear-gradient(150deg, #0d1a2e 0%, #1c3552 55%, #3a5a84 100%);
  --ad-grad-ice:    linear-gradient(150deg, #eaf3fb 0%, #c6def1 100%);
  --ad-grad-steel:  linear-gradient(135deg, #3a5a84 0%, #5c80ad 100%);
  --ad-grad-chrome: linear-gradient(135deg, #cdd8e4 0%, #b0becd 100%);

  /* Shape & depth */
  --ad-r-sm: 10px;
  --ad-r-md: 18px;
  --ad-r-lg: 28px;
  --ad-shadow-sm: 0 4px 14px rgba(13, 26, 46, .08);
  --ad-shadow-md: 0 12px 34px rgba(13, 26, 46, .12);
  --ad-shadow-lg: 0 26px 60px rgba(13, 26, 46, .22);
  --ad-ring: 0 0 0 1px rgba(58, 90, 132, .16);

  /* Rhythm */
  --ad-maxw: 1180px;
  --ad-gap: clamp(1rem, 2.4vw, 2rem);
  --ad-sec-y: clamp(3.5rem, 8vw, 7rem);

  --ad-font: "Segoe UI", "Helvetica Neue", Arial, "Noto Sans", sans-serif;
}

/* -------------------- 2. Reset & base -------------------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--ad-font);
  color: var(--ad-ink);
  background: var(--ad-gray);
  line-height: 1.65;
  font-size: clamp(1rem, .5vw + .9rem, 1.075rem);
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--ad-steel); text-decoration: none; }
a:hover { color: var(--ad-navy); }

h1, h2, h3, h4 {
  line-height: 1.18;
  color: var(--ad-ink);
  font-weight: 700;
  letter-spacing: -.01em;
  margin: 0 0 .6em;
}
h1 { font-size: clamp(2.1rem, 4.6vw, 3.6rem); }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 1.8vw, 1.45rem); }

p { margin: 0 0 1rem; }

/* -------------------- 3. Layout helpers -------------------- */
.ad-wrap {
  width: 100%;
  max-width: var(--ad-maxw);
  margin-inline: auto;
  padding-inline: clamp(1.1rem, 4vw, 2.2rem);
}

.ad-section { padding-block: var(--ad-sec-y); }

.ad-section--tint { background: var(--ad-white); }
.ad-section--wash {
  background:
    radial-gradient(1200px 500px at 80% -10%, rgba(198,222,241,.5), transparent 60%),
    var(--ad-gray);
}
.ad-section--deep {
  background: var(--ad-grad-deep);
  color: var(--ad-on-dark);
}
.ad-section--deep h2,
.ad-section--deep h3 { color: var(--ad-white); }
.ad-section--deep p { color: var(--ad-on-dark-soft); }

.ad-kicker {
  display: inline-block;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ad-steel);
  margin-bottom: .9rem;
}
.ad-section--deep .ad-kicker { color: var(--ad-ice); }

.ad-lead {
  font-size: clamp(1.05rem, 1.4vw, 1.22rem);
  color: var(--ad-ink-soft);
  max-width: 62ch;
}
.ad-section--deep .ad-lead { color: var(--ad-on-dark-soft); }

.ad-center { text-align: center; }
.ad-center .ad-lead { margin-inline: auto; }

/* -------------------- 4. Buttons -------------------- */
.ad-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .55rem;
  padding: .85rem 1.7rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 1rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
  font-family: inherit;
}
.ad-btn:active { transform: translateY(1px); }

.ad-btn--primary {
  background: var(--ad-grad-steel);
  color: var(--ad-white);
  box-shadow: var(--ad-shadow-md);
}
.ad-btn--primary:hover {
  color: var(--ad-white);
  box-shadow: var(--ad-shadow-lg);
  transform: translateY(-2px);
}
.ad-btn--ghost {
  background: rgba(255,255,255,.08);
  color: var(--ad-white);
  border-color: rgba(198,222,241,.4);
  backdrop-filter: blur(6px);
}
.ad-btn--ghost:hover { background: rgba(255,255,255,.16); color: var(--ad-white); }

.ad-btn--outline {
  background: var(--ad-white);
  color: var(--ad-steel);
  border-color: var(--ad-gray-2);
  box-shadow: var(--ad-shadow-sm);
}
.ad-btn--outline:hover { border-color: var(--ad-ice-dark); color: var(--ad-navy); }

/* -------------------- 5. Header / nav -------------------- */
.ad-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(255,255,255,.82);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid rgba(58,90,132,.12);
}
.ad-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  gap: 1rem;
}
.ad-brand {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -.02em;
  color: var(--ad-navy);
}
.ad-brand:hover { color: var(--ad-navy); }
.ad-brand__mark {
  width: 34px; height: 34px;
  border-radius: 10px;
  background: var(--ad-grad-steel);
  display: grid; place-items: center;
  color: var(--ad-white);
  font-size: .95rem;
  box-shadow: var(--ad-shadow-sm);
}

.ad-menu {
  display: flex;
  align-items: center;
  gap: clamp(.5rem, 1.6vw, 1.6rem);
  list-style: none;
  margin: 0; padding: 0;
}
.ad-menu a {
  color: var(--ad-ink-soft);
  font-weight: 500;
  font-size: .97rem;
  padding: .35rem .2rem;
}
.ad-menu a:hover { color: var(--ad-navy); }

.ad-nav__cta { display: inline-flex; }

.ad-burger {
  display: none;
  width: 44px; height: 44px;
  border: 1px solid var(--ad-gray-2);
  background: var(--ad-white);
  border-radius: 12px;
  cursor: pointer;
  padding: 0;
  position: relative;
}
.ad-burger span,
.ad-burger span::before,
.ad-burger span::after {
  content: "";
  position: absolute;
  left: 50%; top: 50%;
  width: 20px; height: 2px;
  background: var(--ad-navy);
  border-radius: 2px;
  transform: translate(-50%, -50%);
  transition: transform .25s ease, opacity .2s ease;
}
.ad-burger span::before { transform: translate(-50%, -7px); }
.ad-burger span::after  { transform: translate(-50%, 5px); }
.ad-burger.is-open span { background: transparent; }
.ad-burger.is-open span::before { transform: translate(-50%, 0) rotate(45deg); }
.ad-burger.is-open span::after  { transform: translate(-50%, 0) rotate(-45deg); }

/* -------------------- 6. Hero -------------------- */
.ad-hero {
  position: relative;
  overflow: hidden;
  background: var(--ad-grad-deep);
  color: var(--ad-on-dark);
}
.ad-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(700px 340px at 12% 8%, rgba(198,222,241,.22), transparent 60%),
    radial-gradient(560px 320px at 92% 96%, rgba(92,128,173,.30), transparent 62%);
  pointer-events: none;
}
.ad-hero__grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: center;
  padding-block: clamp(3rem, 7vw, 6rem);
}
.ad-hero h1 { color: var(--ad-white); }
.ad-hero__intro {
  color: var(--ad-on-dark-soft);
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
  max-width: 52ch;
  margin-bottom: 1.8rem;
}
.ad-hero__actions { display: flex; flex-wrap: wrap; gap: .9rem; margin-bottom: 1.8rem; }
.ad-hero__meta {
  display: flex; flex-wrap: wrap; gap: 1.4rem;
  color: var(--ad-on-dark-soft);
  font-size: .9rem;
}
.ad-hero__meta strong { color: var(--ad-ice); font-weight: 700; }

/* Hero visual + floating product card */
.ad-hero__visual { position: relative; }
.ad-hero__frame {
  position: relative;
  border-radius: var(--ad-r-lg);
  overflow: hidden;
  aspect-ratio: 4 / 5;
  box-shadow: var(--ad-shadow-lg);
  border: 1px solid rgba(198,222,241,.25);
}
.ad-hero__frame img { width: 100%; height: 100%; object-fit: cover; }

.ad-floatcard {
  position: absolute;
  left: -18px; bottom: 26px;
  width: min(260px, 74%);
  background: rgba(255,255,255,.14);
  border: 1px solid rgba(198,222,241,.35);
  backdrop-filter: blur(16px) saturate(150%);
  border-radius: var(--ad-r-md);
  padding: 1rem 1.1rem;
  box-shadow: var(--ad-shadow-md);
  color: var(--ad-white);
}
.ad-floatcard__row { display: flex; align-items: center; justify-content: space-between; gap: .6rem; }
.ad-floatcard__name { font-weight: 700; }
.ad-floatcard__price {
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--ad-ice);
}
.ad-floatcard__note { font-size: .82rem; color: var(--ad-on-dark-soft); margin: .35rem 0 0; }

/* -------------------- 7. Feature cards -------------------- */
.ad-grid {
  display: grid;
  gap: var(--ad-gap);
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  margin-top: 2.4rem;
}
.ad-card {
  background: var(--ad-white);
  border: 1px solid var(--ad-gray-2);
  border-radius: var(--ad-r-md);
  padding: 1.6rem;
  box-shadow: var(--ad-shadow-sm);
  transition: transform .2s ease, box-shadow .2s ease;
}
.ad-card:hover { transform: translateY(-4px); box-shadow: var(--ad-shadow-md); }
.ad-card__badge {
  width: 46px; height: 46px;
  border-radius: 13px;
  display: grid; place-items: center;
  background: var(--ad-grad-ice);
  color: var(--ad-navy);
  font-weight: 800;
  margin-bottom: 1rem;
  box-shadow: var(--ad-ring);
}
.ad-card h3 { margin-bottom: .45rem; }
.ad-card p { color: var(--ad-ink-soft); margin: 0; }

/* -------------------- 8. Split / media rows -------------------- */
.ad-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.5rem, 5vw, 4rem);
  align-items: center;
}
.ad-split--flip .ad-split__media { order: 2; }

.ad-media {
  border-radius: var(--ad-r-lg);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  box-shadow: var(--ad-shadow-md);
  border: 1px solid rgba(58,90,132,.12);
}
.ad-media img { width: 100%; height: 100%; object-fit: cover; }

.ad-list { list-style: none; padding: 0; margin: 1.2rem 0 0; }
.ad-list li {
  position: relative;
  padding: .55rem 0 .55rem 2rem;
  color: var(--ad-ink-soft);
  border-bottom: 1px solid var(--ad-gray-2);
}
.ad-list li::before {
  content: "";
  position: absolute; left: 0; top: 1.05rem;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--ad-grad-steel);
  box-shadow: inset 0 0 0 4px rgba(255,255,255,.85);
}
.ad-section--deep .ad-list li { color: var(--ad-on-dark-soft); border-color: rgba(198,222,241,.14); }

/* -------------------- 9. Product showcase -------------------- */
.ad-product {
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: clamp(1.5rem, 5vw, 3.5rem);
  align-items: center;
  background: var(--ad-white);
  border: 1px solid var(--ad-gray-2);
  border-radius: var(--ad-r-lg);
  padding: clamp(1.5rem, 4vw, 3rem);
  box-shadow: var(--ad-shadow-md);
}
.ad-product__stage {
  position: relative;
  border-radius: var(--ad-r-lg);
  background: var(--ad-grad-ice);
  aspect-ratio: 1 / 1;
  display: grid; place-items: center;
  overflow: hidden;
}
.ad-product__stage::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(60% 55% at 50% 40%, rgba(255,255,255,.65), transparent 70%);
}
.ad-product__stage img {
  position: relative;
  width: 62%;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 22px 34px rgba(13,26,46,.28));
}
.ad-price-row { display: flex; align-items: baseline; gap: .8rem; margin: 1rem 0 1.4rem; }
.ad-price {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  color: var(--ad-navy);
  letter-spacing: -.02em;
}
.ad-price__unit { color: var(--ad-ink-soft); font-size: .95rem; }

.ad-tags { display: flex; flex-wrap: wrap; gap: .5rem; margin: 1.2rem 0 0; }
.ad-tag {
  font-size: .82rem;
  font-weight: 600;
  color: var(--ad-steel);
  background: var(--ad-ice-pale);
  border: 1px solid var(--ad-gray-2);
  padding: .35rem .8rem;
  border-radius: 999px;
}

/* -------------------- 10. FAQ accordion -------------------- */
.ad-faq { max-width: 820px; margin: 2.4rem auto 0; }
.ad-faq__item {
  background: var(--ad-white);
  border: 1px solid var(--ad-gray-2);
  border-radius: var(--ad-r-md);
  margin-bottom: .9rem;
  box-shadow: var(--ad-shadow-sm);
  overflow: hidden;
}
.ad-faq__q {
  width: 100%;
  text-align: left;
  background: none;
  border: 0;
  padding: 1.15rem 1.3rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--ad-ink);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-family: inherit;
}
.ad-faq__icon {
  flex: none;
  width: 26px; height: 26px;
  border-radius: 50%;
  background: var(--ad-ice-pale);
  color: var(--ad-steel);
  display: grid; place-items: center;
  font-weight: 700;
  transition: transform .25s ease, background .25s ease;
}
.ad-faq__item.is-open .ad-faq__icon {
  transform: rotate(45deg);
  background: var(--ad-grad-steel);
  color: var(--ad-white);
}
.ad-faq__a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease;
}
.ad-faq__a p {
  padding: 0 1.3rem 1.2rem;
  margin: 0;
  color: var(--ad-ink-soft);
}

/* -------------------- 11. Order form -------------------- */
.ad-order {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.5rem, 5vw, 3.5rem);
  align-items: center;
}
.ad-formcard {
  background: rgba(255,255,255,.10);
  border: 1px solid rgba(198,222,241,.28);
  backdrop-filter: blur(14px) saturate(140%);
  border-radius: var(--ad-r-lg);
  padding: clamp(1.5rem, 4vw, 2.6rem);
  box-shadow: var(--ad-shadow-lg);
}
.ad-field { margin-bottom: 1.15rem; }
.ad-field label {
  display: block;
  font-size: .9rem;
  font-weight: 600;
  color: var(--ad-white);
  margin-bottom: .45rem;
}
.ad-field input {
  width: 100%;
  padding: .9rem 1rem;
  border-radius: var(--ad-r-sm);
  border: 1px solid rgba(198,222,241,.35);
  background: rgba(255,255,255,.92);
  color: var(--ad-ink);
  font-size: 1rem;
  font-family: inherit;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.ad-field input:focus {
  outline: none;
  border-color: var(--ad-ice);
  box-shadow: 0 0 0 4px rgba(198,222,241,.28);
}
.ad-field input.is-invalid { border-color: #d98b8b; box-shadow: 0 0 0 4px rgba(217,139,139,.22); }
.ad-field__error {
  display: none;
  color: #ffd0d0;
  font-size: .82rem;
  margin-top: .4rem;
}
.ad-field__error.is-shown { display: block; }
.ad-form__note { color: var(--ad-on-dark-soft); font-size: .82rem; margin-top: 1rem; }
.ad-form__submit { width: 100%; margin-top: .3rem; }

/* -------------------- 12. Footer -------------------- */
.ad-footer {
  background: var(--ad-navy);
  color: var(--ad-on-dark-soft);
  padding-block: clamp(2.6rem, 6vw, 4rem) 1.6rem;
}
.ad-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2rem;
}
.ad-footer h4 { color: var(--ad-white); font-size: 1rem; margin-bottom: 1rem; }
.ad-footer a { color: var(--ad-on-dark-soft); }
.ad-footer a:hover { color: var(--ad-ice); }
.ad-footer__links { list-style: none; padding: 0; margin: 0; }
.ad-footer__links li { margin-bottom: .55rem; }
.ad-footer__contact p { margin: 0 0 .5rem; font-size: .95rem; }
.ad-footer__brand .ad-brand { color: var(--ad-white); margin-bottom: .9rem; }
.ad-footer__brand p { font-size: .92rem; max-width: 34ch; }
.ad-cookie-btn {
  margin-top: .4rem;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(198,222,241,.24);
  color: var(--ad-ice);
  padding: .6rem 1.1rem;
  border-radius: 999px;
  cursor: pointer;
  font-size: .88rem;
  font-family: inherit;
  transition: background .2s ease;
}
.ad-cookie-btn:hover { background: rgba(255,255,255,.12); }
.ad-footer__bar {
  margin-top: 2.4rem;
  padding-top: 1.4rem;
  border-top: 1px solid rgba(198,222,241,.14);
  display: flex;
  flex-wrap: wrap;
  gap: .6rem 1.4rem;
  justify-content: space-between;
  font-size: .84rem;
}

/* -------------------- 13. Disclaimer strip -------------------- */
.ad-disclaimer {
  background: var(--ad-ice-pale);
  border: 1px solid var(--ad-gray-2);
  border-radius: var(--ad-r-md);
  padding: 1.2rem 1.4rem;
  color: var(--ad-ink-soft);
  font-size: .9rem;
  margin-top: 2.4rem;
}
.ad-disclaimer strong { color: var(--ad-navy); }

/* -------------------- 14. Legal / article pages -------------------- */
.ad-page-head {
  background: var(--ad-grad-deep);
  color: var(--ad-on-dark);
  padding-block: clamp(2.6rem, 7vw, 4.4rem);
}
.ad-page-head h1 { color: var(--ad-white); margin-bottom: .5rem; }
.ad-page-head p { color: var(--ad-on-dark-soft); margin: 0; }

.ad-doc {
  background: var(--ad-white);
  border: 1px solid var(--ad-gray-2);
  border-radius: var(--ad-r-lg);
  padding: clamp(1.5rem, 4vw, 3rem);
  box-shadow: var(--ad-shadow-sm);
  margin-block: var(--ad-sec-y);
}
.ad-doc h2 { margin-top: 2rem; font-size: 1.4rem; }
.ad-doc h2:first-of-type { margin-top: 0; }
.ad-doc h3 { margin-top: 1.4rem; font-size: 1.12rem; }
.ad-doc p, .ad-doc li { color: var(--ad-ink-soft); }
.ad-doc ul { padding-left: 1.2rem; }
.ad-doc li { margin-bottom: .5rem; }
.ad-doc__meta { color: var(--ad-chrome); font-size: .86rem; margin-bottom: 1.5rem; }
.ad-back { margin-top: 2rem; }

/* Article card (habits page) */
.ad-article {
  max-width: 860px;
  margin-inline: auto;
}
.ad-article__hero {
  border-radius: var(--ad-r-lg);
  overflow: hidden;
  aspect-ratio: 16 / 7;
  box-shadow: var(--ad-shadow-md);
  margin-bottom: 2rem;
  border: 1px solid var(--ad-gray-2);
}
.ad-article__hero img { width: 100%; height: 100%; object-fit: cover; }
.ad-infocard {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 1.5rem;
  align-items: center;
  background: var(--ad-white);
  border: 1px solid var(--ad-gray-2);
  border-radius: var(--ad-r-lg);
  padding: 1.4rem;
  box-shadow: var(--ad-shadow-sm);
  margin: 2rem 0;
}
.ad-infocard__img {
  border-radius: var(--ad-r-md);
  overflow: hidden;
  aspect-ratio: 1 / 1;
}
.ad-infocard__img img { width: 100%; height: 100%; object-fit: cover; }
.ad-infocard h3 { margin-bottom: .4rem; }
.ad-infocard p { margin: 0; color: var(--ad-ink-soft); }

/* -------------------- 15. Success page -------------------- */
.ad-success {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: var(--ad-grad-deep);
  padding: 2rem;
  text-align: center;
  color: var(--ad-on-dark);
}
.ad-success__card {
  background: rgba(255,255,255,.10);
  border: 1px solid rgba(198,222,241,.3);
  backdrop-filter: blur(16px) saturate(150%);
  border-radius: var(--ad-r-lg);
  padding: clamp(2rem, 6vw, 3.5rem);
  max-width: 560px;
  box-shadow: var(--ad-shadow-lg);
}
.ad-success__mark {
  width: 76px; height: 76px;
  margin: 0 auto 1.4rem;
  border-radius: 50%;
  background: var(--ad-grad-ice);
  color: var(--ad-navy);
  display: grid; place-items: center;
  font-size: 2.2rem;
  font-weight: 800;
  box-shadow: var(--ad-shadow-md);
}
.ad-success h1 { color: var(--ad-white); }
.ad-success p { color: var(--ad-on-dark-soft); }

/* -------------------- 16. Cookie banner -------------------- */
.ad-cookie {
  position: fixed;
  left: 50%;
  bottom: 20px;
  transform: translateX(-50%) translateY(140%);
  width: min(680px, calc(100% - 32px));
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(14px);
  border: 1px solid var(--ad-gray-2);
  border-radius: var(--ad-r-lg);
  box-shadow: var(--ad-shadow-lg);
  padding: 1.3rem 1.4rem;
  z-index: 100;
  transition: transform .4s cubic-bezier(.22,1,.36,1);
}
.ad-cookie.is-visible { transform: translateX(-50%) translateY(0); }
.ad-cookie h4 { margin: 0 0 .4rem; font-size: 1.05rem; }
.ad-cookie p { margin: 0 0 1rem; font-size: .9rem; color: var(--ad-ink-soft); }
.ad-cookie__actions { display: flex; flex-wrap: wrap; gap: .6rem; }
.ad-cookie__actions .ad-btn { padding: .65rem 1.3rem; font-size: .92rem; }

/* Preferences panel */
.ad-cookie__prefs { display: none; margin: .4rem 0 1rem; border-top: 1px solid var(--ad-gray-2); padding-top: 1rem; }
.ad-cookie__prefs.is-shown { display: block; }
.ad-pref {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: .5rem 0;
  border-bottom: 1px solid var(--ad-gray);
}
.ad-pref:last-child { border-bottom: 0; }
.ad-pref span { font-size: .88rem; color: var(--ad-ink-soft); }
.ad-pref strong { color: var(--ad-ink); display: block; font-size: .94rem; }
.ad-switch { position: relative; width: 44px; height: 24px; flex: none; }
.ad-switch input { opacity: 0; width: 0; height: 0; }
.ad-switch__track {
  position: absolute; inset: 0;
  background: var(--ad-chrome);
  border-radius: 999px;
  transition: background .2s ease;
  cursor: pointer;
}
.ad-switch__track::before {
  content: "";
  position: absolute; left: 3px; top: 3px;
  width: 18px; height: 18px;
  background: var(--ad-white);
  border-radius: 50%;
  transition: transform .2s ease;
}
.ad-switch input:checked + .ad-switch__track { background: var(--ad-steel); }
.ad-switch input:checked + .ad-switch__track::before { transform: translateX(20px); }
.ad-switch input:disabled + .ad-switch__track { opacity: .6; cursor: not-allowed; }

/* -------------------- 17. Responsive -------------------- */
@media (max-width: 960px) {
  .ad-hero__grid { grid-template-columns: 1fr; }
  .ad-hero__visual { max-width: 460px; margin-inline: auto; width: 100%; }
  .ad-product { grid-template-columns: 1fr; }
  .ad-product__stage { max-width: 360px; margin-inline: auto; width: 100%; }
  .ad-order { grid-template-columns: 1fr; }
  .ad-footer__grid { grid-template-columns: 1fr 1fr; }
  .ad-footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 760px) {
  .ad-burger { display: block; }
  .ad-menu {
    position: fixed;
    inset: 68px 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--ad-white);
    border-bottom: 1px solid var(--ad-gray-2);
    padding: .6rem 1.2rem 1.2rem;
    box-shadow: var(--ad-shadow-md);
    transform: translateY(-140%);
    transition: transform .32s cubic-bezier(.22,1,.36,1);
    z-index: 55;
  }
  .ad-menu.is-open { transform: translateY(0); }
  .ad-menu li { border-bottom: 1px solid var(--ad-gray); }
  .ad-menu a { display: block; padding: .95rem .2rem; }
  .ad-nav__cta { display: none; }

  .ad-split, .ad-split--flip { grid-template-columns: 1fr; }
  .ad-split--flip .ad-split__media { order: 0; }
  .ad-infocard { grid-template-columns: 1fr; }
  .ad-infocard__img { max-width: 260px; }
}

@media (max-width: 480px) {
  .ad-footer__grid { grid-template-columns: 1fr; }
  .ad-hero__actions .ad-btn { width: 100%; }
  .ad-floatcard { left: 8px; right: 8px; width: auto; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
}