/* ==========================================================================
   Erexiva NL — style.css
   Palet: licht · verzadigd · zilver · chroom · blauw · donkerblauw
   Unieke class-prefix: erx-
   ========================================================================== */

:root {
  /* kleuren */
  --erx-navy-deep: #0b162e;
  --erx-navy: #12264a;
  --erx-blue: #2563c2;
  --erx-blue-bright: #388beb;
  --erx-sky: #80c4f5;
  --erx-silver: #c4cdd8;
  --erx-chrome: #e9eef4;
  --erx-light: #f4f8fc;
  --erx-white: #ffffff;
  --erx-ink: #1a2740;
  --erx-muted: #59667e;

  /* verlopen */
  --erx-grad-deep: linear-gradient(135deg, #0b162e 0%, #12264a 55%, #1c3a70 100%);
  --erx-grad-blue: linear-gradient(120deg, #2563c2 0%, #388beb 100%);
  --erx-grad-chrome: linear-gradient(180deg, #ffffff 0%, #e9eef4 60%, #c4cdd8 100%);
  --erx-grad-sky: linear-gradient(160deg, #f4f8fc 0%, #dcecfb 100%);

  /* glas */
  --erx-glass-bg: rgba(255, 255, 255, 0.62);
  --erx-glass-brd: rgba(255, 255, 255, 0.75);
  --erx-glass-dark: rgba(18, 38, 74, 0.55);

  /* schaduw */
  --erx-shadow-sm: 0 4px 14px rgba(11, 22, 46, 0.08);
  --erx-shadow-md: 0 14px 40px rgba(11, 22, 46, 0.14);
  --erx-shadow-lg: 0 28px 70px rgba(11, 22, 46, 0.22);

  /* ruimte */
  --erx-radius: 22px;
  --erx-radius-lg: 34px;
  --erx-maxw: 1180px;
  --erx-gutter: clamp(20px, 5vw, 64px);

  /* type */
  --erx-font-display: "Trebuchet MS", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --erx-font-body: "Segoe UI", "Helvetica Neue", 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(--erx-font-body);
  color: var(--erx-ink);
  background: var(--erx-light);
  line-height: 1.65;
  font-size: 17px;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--erx-blue); text-decoration: none; }
a:hover { color: var(--erx-blue-bright); }
h1, h2, h3, h4 { font-family: var(--erx-font-display); line-height: 1.15; color: var(--erx-navy); margin: 0 0 .5em; letter-spacing: -0.01em; }
p { margin: 0 0 1.1em; }
button { font-family: inherit; cursor: pointer; }

/* ---------- utilities ---------- */
.erx-shell { width: 100%; max-width: var(--erx-maxw); margin-inline: auto; padding-inline: var(--erx-gutter); }
.erx-eyebrow {
  display: inline-block;
  font-size: .78rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--erx-blue);
  background: rgba(56, 139, 235, 0.10);
  padding: .4em .95em;
  border-radius: 999px;
  margin-bottom: 1.1rem;
}
.erx-section { padding-block: clamp(56px, 8vw, 108px); position: relative; }
.erx-section--tint { background: var(--erx-grad-sky); }
.erx-section--deep { background: var(--erx-grad-deep); color: var(--erx-chrome); }
.erx-section--deep h2, .erx-section--deep h3 { color: var(--erx-white); }
.erx-section-head { max-width: 640px; margin-bottom: clamp(32px, 5vw, 56px); }
.erx-section-head--center { margin-inline: auto; text-align: center; }
.erx-h2 { font-size: clamp(1.9rem, 4vw, 2.9rem); }
.erx-lead { font-size: clamp(1.02rem, 1.6vw, 1.2rem); color: var(--erx-muted); }
.erx-section--deep .erx-lead { color: var(--erx-silver); }

/* ---------- knoppen ---------- */
.erx-btn {
  display: inline-flex; align-items: center; gap: .55em;
  border: none; border-radius: 999px;
  padding: .95em 1.9em;
  font-weight: 700; font-size: 1rem;
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
  text-align: center;
}
.erx-btn--primary {
  background: var(--erx-grad-blue);
  color: #fff;
  box-shadow: 0 12px 28px rgba(37, 99, 194, 0.38);
}
.erx-btn--primary:hover { transform: translateY(-2px); box-shadow: 0 18px 38px rgba(37, 99, 194, 0.48); color:#fff; }
.erx-btn--ghost {
  background: rgba(255,255,255,0.14);
  color: var(--erx-white);
  border: 1px solid rgba(255,255,255,0.4);
}
.erx-btn--ghost:hover { background: rgba(255,255,255,0.24); color:#fff; }
.erx-btn--wide { width: 100%; justify-content: center; }

/* ==========================================================================
   NAVIGATIE
   ========================================================================== */
.erx-nav {
  position: sticky; top: 0; z-index: 60;
  background: rgba(244, 248, 252, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(196, 205, 216, 0.5);
}
.erx-nav__inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.erx-brand { display: flex; align-items: center; gap: .6em; font-family: var(--erx-font-display); font-weight: 800; font-size: 1.3rem; color: var(--erx-navy); letter-spacing: -.02em; }
.erx-brand__mark {
  width: 34px; height: 34px; border-radius: 10px;
  background: var(--erx-grad-blue);
  display: grid; place-items: center;
  color: #fff; font-size: .95rem; font-weight: 800;
  box-shadow: 0 6px 16px rgba(37,99,194,.4);
}
.erx-brand__sub { font-size:.62rem; font-weight:700; letter-spacing:.22em; color:var(--erx-blue); text-transform:uppercase; }
.erx-menu { display: flex; align-items: center; gap: 2rem; list-style: none; margin: 0; padding: 0; }
.erx-menu a { color: var(--erx-ink); font-weight: 600; font-size: .96rem; }
.erx-menu a:hover { color: var(--erx-blue); }
.erx-nav__cta { display:inline-flex; }
.erx-burger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; padding: 8px;
}
.erx-burger span { width: 26px; height: 2.5px; background: var(--erx-navy); border-radius: 2px; transition: .3s; }
.erx-burger.is-open span:nth-child(1){ transform: translateY(7.5px) rotate(45deg); }
.erx-burger.is-open span:nth-child(2){ opacity: 0; }
.erx-burger.is-open span:nth-child(3){ transform: translateY(-7.5px) rotate(-45deg); }

/* ==========================================================================
   1. HERO
   ========================================================================== */
.erx-hero {
  position: relative;
  background: var(--erx-grad-deep);
  color: var(--erx-chrome);
  overflow: hidden;
  padding-block: clamp(70px, 10vw, 130px);
}
.erx-hero__bg {
  position: absolute; inset: 0;
  background-image: url("../img/hero.jpg");
  background-size: cover; background-position: center;
  opacity: .42;
}
.erx-hero__veil { position:absolute; inset:0; background: linear-gradient(120deg, rgba(11,22,46,.85) 0%, rgba(18,38,74,.55) 60%, rgba(28,58,112,.35) 100%); }
.erx-hero__grid {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: 1.05fr .95fr;
  gap: clamp(28px, 5vw, 60px); align-items: center;
}
.erx-hero__title { font-size: clamp(2.3rem, 5.4vw, 4rem); color: #fff; margin-bottom: .35em; }
.erx-hero__title span { background: linear-gradient(120deg, #80c4f5, #388beb); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.erx-hero__text { font-size: clamp(1.05rem, 1.8vw, 1.25rem); color: var(--erx-silver); max-width: 40ch; }
.erx-hero__actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 1.8rem; }
.erx-hero__note { margin-top: 1.6rem; font-size: .85rem; color: var(--erx-silver); opacity:.85; }
.erx-hero__visual {
  position: relative;
  border-radius: var(--erx-radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 5;
  background: var(--erx-grad-chrome);
  box-shadow: var(--erx-shadow-lg);
  border: 1px solid rgba(255,255,255,.3);
}
.erx-hero__visual img { width: 100%; height: 100%; object-fit: contain; padding: 8%; }
.erx-hero__badge {
  position: absolute; left: 18px; bottom: 18px;
  background: var(--erx-glass-bg); backdrop-filter: blur(10px);
  border: 1px solid var(--erx-glass-brd);
  border-radius: 16px; padding: .7em 1.1em;
  font-size: .82rem; font-weight: 700; color: var(--erx-navy);
  box-shadow: var(--erx-shadow-sm);
}

/* ==========================================================================
   2. MERK-INTRO
   ========================================================================== */
.erx-intro__grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 5vw, 64px); align-items: center; }
.erx-intro__media {
  border-radius: var(--erx-radius-lg);
  overflow: hidden; aspect-ratio: 16 / 11;
  box-shadow: var(--erx-shadow-md);
  border: 1px solid rgba(196,205,216,.6);
}
.erx-intro__media img { width: 100%; height: 100%; object-fit: cover; }
.erx-pill-row { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1.4rem; }
.erx-pill {
  display: inline-flex; align-items:center; gap:.4em;
  background: var(--erx-white); border: 1px solid var(--erx-silver);
  border-radius: 999px; padding: .5em 1em; font-size: .88rem; font-weight: 600; color: var(--erx-navy);
  box-shadow: var(--erx-shadow-sm);
}
.erx-pill i { width:7px; height:7px; border-radius:50%; background: var(--erx-blue-bright); display:inline-block; }

/* ==========================================================================
   3. PRODUCT
   ========================================================================== */
.erx-product__grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(32px, 5vw, 64px); align-items: center; }
.erx-product__stage {
  position: relative;
  border-radius: var(--erx-radius-lg);
  background: var(--erx-grad-chrome);
  aspect-ratio: 1 / 1;
  display: grid; place-items: center;
  box-shadow: var(--erx-shadow-md);
  border: 1px solid rgba(255,255,255,.6);
  overflow: hidden;
}
.erx-product__stage::after { content:""; position:absolute; width:70%; height:70%; border-radius:50%; background: radial-gradient(circle, rgba(128,196,245,.5), transparent 70%); filter: blur(30px); }
.erx-product__stage img { position: relative; z-index:2; width: 74%; height:74%; object-fit: contain; }
.erx-priceline { display: flex; align-items: baseline; gap: .6rem; margin: 1.2rem 0; }
.erx-price { font-family: var(--erx-font-display); font-size: 2.6rem; font-weight: 800; color: var(--erx-navy); }
.erx-price small { font-size: .95rem; color: var(--erx-muted); font-weight: 600; }
.erx-spec-list { list-style: none; margin: 1.4rem 0 0; padding: 0; display: grid; gap: .8rem; }
.erx-spec-list li { display: flex; gap: .7rem; align-items: flex-start; }
.erx-check {
  flex: 0 0 22px; width: 22px; height: 22px; border-radius: 7px;
  background: var(--erx-grad-blue); color: #fff; display: grid; place-items: center;
  font-size: .8rem; margin-top: 2px;
}

/* ==========================================================================
   4. LEEFSTIJL-VOORDELEN
   ========================================================================== */
.erx-benefits__wrap { position: relative; z-index:2; }
.erx-benefit-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; }
.erx-benefit {
  background: rgba(255,255,255,0.10);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: var(--erx-radius);
  padding: 2rem 1.7rem;
  transition: transform .3s ease, background .3s ease;
}
.erx-benefit:hover { transform: translateY(-6px); background: rgba(255,255,255,0.16); }
.erx-benefit__icon {
  width: 52px; height: 52px; border-radius: 14px;
  background: var(--erx-grad-blue);
  display: grid; place-items: center; font-size: 1.4rem;
  margin-bottom: 1.1rem; box-shadow: 0 10px 24px rgba(37,99,194,.4);
}
.erx-benefit h3 { font-size: 1.2rem; color:#fff; }
.erx-benefit p { color: var(--erx-silver); font-size: .96rem; margin: 0; }

/* ==========================================================================
   5. INGREDIENTEN
   ========================================================================== */
.erx-ingredients__grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(32px, 5vw, 60px); align-items: center; }
.erx-ing-media { border-radius: var(--erx-radius-lg); overflow:hidden; aspect-ratio: 16/12; box-shadow: var(--erx-shadow-md); border:1px solid rgba(196,205,216,.6); }
.erx-ing-media img { width:100%; height:100%; object-fit: cover; }
.erx-ing-cards { display: grid; gap: 1rem; }
.erx-ing-card {
  background: var(--erx-glass-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--erx-glass-brd);
  border-radius: var(--erx-radius);
  padding: 1.3rem 1.5rem;
  box-shadow: var(--erx-shadow-sm);
  display: flex; gap: 1rem; align-items: flex-start;
}
.erx-ing-card__no {
  flex: 0 0 auto; font-family: var(--erx-font-display); font-weight: 800;
  font-size: 1.05rem; color: var(--erx-blue);
  width: 40px; height: 40px; border-radius: 12px;
  background: rgba(56,139,235,.12); display: grid; place-items: center;
}
.erx-ing-card h4 { margin: 0 0 .25em; font-size: 1.08rem; }
.erx-ing-card p { margin: 0; font-size: .92rem; color: var(--erx-muted); }

/* ==========================================================================
   6. KWALITEIT
   ========================================================================== */
.erx-quality__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.3rem; }
.erx-quality-card {
  background: var(--erx-white);
  border: 1px solid var(--erx-silver);
  border-radius: var(--erx-radius);
  padding: 1.7rem 1.4rem;
  box-shadow: var(--erx-shadow-sm);
  transition: transform .3s ease, box-shadow .3s ease;
}
.erx-quality-card:hover { transform: translateY(-5px); box-shadow: var(--erx-shadow-md); }
.erx-quality-card__mark {
  width: 46px; height: 46px; border-radius: 13px;
  background: var(--erx-grad-chrome); border: 1px solid var(--erx-silver);
  display: grid; place-items: center; font-size: 1.3rem; margin-bottom: 1rem;
}
.erx-quality-card h4 { font-size: 1.05rem; margin-bottom: .35em; }
.erx-quality-card p { font-size: .9rem; color: var(--erx-muted); margin: 0; }

/* ==========================================================================
   7. FAQ
   ========================================================================== */
.erx-faq { max-width: 820px; margin-inline: auto; }
.erx-acc {
  background: var(--erx-white);
  border: 1px solid var(--erx-silver);
  border-radius: 18px;
  margin-bottom: 1rem;
  overflow: hidden;
  box-shadow: var(--erx-shadow-sm);
}
.erx-acc__head {
  width: 100%; text-align: left; background: none; border: none;
  padding: 1.25rem 1.5rem;
  font-family: var(--erx-font-display); font-weight: 700; font-size: 1.06rem; color: var(--erx-navy);
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
}
.erx-acc__sign { flex: 0 0 auto; width: 26px; height: 26px; border-radius: 8px; background: rgba(56,139,235,.12); color: var(--erx-blue); display: grid; place-items: center; font-size: 1.2rem; transition: transform .3s ease; }
.erx-acc.is-open .erx-acc__sign { transform: rotate(45deg); }
.erx-acc__body { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.erx-acc__body p { padding: 0 1.5rem 1.35rem; margin: 0; color: var(--erx-muted); font-size: .96rem; }

/* ==========================================================================
   8. BESTELFORMULIER
   ========================================================================== */
.erx-order__grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 5vw, 60px); align-items: center; }
.erx-order__aside h2 { color: #fff; }
.erx-order__list { list-style: none; padding: 0; margin: 1.4rem 0 0; display: grid; gap: .9rem; }
.erx-order__list li { display: flex; gap: .7rem; align-items: center; color: var(--erx-silver); }
.erx-order__list span { flex:0 0 auto; width:24px; height:24px; border-radius:7px; background: var(--erx-grad-blue); color:#fff; display:grid; place-items:center; font-size:.8rem; }
.erx-formcard {
  background: var(--erx-glass-bg);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--erx-glass-brd);
  border-radius: var(--erx-radius-lg);
  padding: clamp(1.6rem, 4vw, 2.6rem);
  box-shadow: var(--erx-shadow-lg);
}
.erx-formcard__top { display:flex; align-items:center; justify-content:space-between; margin-bottom:1.4rem; }
.erx-formcard__price { font-family: var(--erx-font-display); font-weight:800; font-size:1.7rem; color: var(--erx-navy); }
.erx-field { margin-bottom: 1.15rem; }
.erx-field label { display: block; font-weight: 600; font-size: .9rem; margin-bottom: .45rem; color: var(--erx-navy); }
.erx-field input {
  width: 100%; padding: .95em 1.1em;
  border: 1.5px solid var(--erx-silver);
  border-radius: 14px; font-size: 1rem; color: var(--erx-ink);
  background: rgba(255,255,255,.9);
  transition: border-color .2s ease, box-shadow .2s ease;
}
.erx-field input:focus { outline: none; border-color: var(--erx-blue-bright); box-shadow: 0 0 0 4px rgba(56,139,235,.16); }
.erx-field input.erx-invalid { border-color: #d64545; box-shadow: 0 0 0 4px rgba(214,69,69,.14); }
.erx-error { display: none; color: #c23636; font-size: .82rem; margin-top: .35rem; }
.erx-error.is-visible { display: block; }
.erx-form-note { font-size: .8rem; color: var(--erx-muted); margin-top: 1rem; text-align: center; }

/* ==========================================================================
   9. FOOTER
   ========================================================================== */
.erx-footer { background: var(--erx-navy-deep); color: var(--erx-silver); padding-block: clamp(48px, 7vw, 80px) 0; }
.erx-footer__grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: clamp(28px, 5vw, 56px); }
.erx-footer h4 { color: #fff; font-size: 1.05rem; margin-bottom: 1rem; }
.erx-footer a { color: var(--erx-silver); font-size: .94rem; }
.erx-footer a:hover { color: var(--erx-sky); }
.erx-footer__links { list-style: none; padding: 0; margin: 0; display: grid; gap: .6rem; }
.erx-footer__brand p { color: var(--erx-silver); font-size: .94rem; max-width: 34ch; }
.erx-footer__contact { font-size: .94rem; display: grid; gap: .5rem; }
.erx-footer__disc {
  margin-top: clamp(32px, 5vw, 56px);
  border-top: 1px solid rgba(196,205,216,.18);
  padding-block: 1.6rem;
  font-size: .82rem; color: rgba(196,205,216,.7);
}
.erx-footer__bottom {
  border-top: 1px solid rgba(196,205,216,.18);
  padding-block: 1.4rem;
  display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; align-items: center;
  font-size: .84rem;
}
.erx-footer__bottom nav { display: flex; flex-wrap: wrap; gap: 1.2rem; }

/* ==========================================================================
   COOKIE-BANNER
   ========================================================================== */
.erx-cookie {
  position: fixed; left: 50%; bottom: 22px; transform: translateX(-50%) translateY(140%);
  width: min(680px, calc(100% - 32px)); z-index: 90;
  background: var(--erx-white);
  border: 1px solid var(--erx-silver);
  border-radius: var(--erx-radius);
  box-shadow: var(--erx-shadow-lg);
  padding: 1.4rem 1.6rem;
  display: flex; flex-wrap: wrap; align-items: center; gap: 1rem;
  transition: transform .5s cubic-bezier(.2,.8,.2,1);
}
.erx-cookie.is-visible { transform: translateX(-50%) translateY(0); }
.erx-cookie__text { flex: 1 1 300px; font-size: .9rem; color: var(--erx-muted); margin: 0; }
.erx-cookie__actions { display: flex; gap: .7rem; flex-wrap: wrap; }
.erx-cookie .erx-btn { padding: .7em 1.4em; font-size: .9rem; }
.erx-btn--soft { background: var(--erx-chrome); color: var(--erx-navy); border: 1px solid var(--erx-silver); }
.erx-btn--soft:hover { background: var(--erx-silver); color: var(--erx-navy); }

/* ==========================================================================
   LEGAL / CONTENT-PAGINA'S
   ========================================================================== */
.erx-legal-hero { background: var(--erx-grad-deep); color: var(--erx-chrome); padding-block: clamp(60px, 9vw, 100px); }
.erx-legal-hero h1 { color: #fff; font-size: clamp(2rem, 5vw, 3rem); }
.erx-legal-hero p { color: var(--erx-silver); max-width: 60ch; margin: 0; }
.erx-legal { padding-block: clamp(48px, 7vw, 88px); }
.erx-legal__body { max-width: 820px; }
.erx-legal__body h2 { font-size: 1.5rem; margin-top: 2.4rem; }
.erx-legal__body h3 { font-size: 1.15rem; margin-top: 1.8rem; }
.erx-legal__body ul { padding-left: 1.3rem; margin-bottom: 1.2rem; }
.erx-legal__body li { margin-bottom: .5rem; }
.erx-legal__meta { color: var(--erx-muted); font-size: .88rem; margin-bottom: 2rem; padding-bottom: 1.4rem; border-bottom: 1px solid var(--erx-silver); }
.erx-legal__card {
  background: var(--erx-grad-sky);
  border: 1px solid var(--erx-silver);
  border-radius: var(--erx-radius);
  padding: 1.6rem 1.8rem; margin: 2rem 0;
}
.erx-legal__card p:last-child { margin: 0; }

/* ==========================================================================
   SUCCESS-PAGINA
   ========================================================================== */
.erx-success { min-height: 78vh; display: grid; place-items: center; background: var(--erx-grad-sky); padding-block: 60px; }
.erx-success__card {
  text-align: center; max-width: 560px;
  background: var(--erx-glass-bg); backdrop-filter: blur(16px);
  border: 1px solid var(--erx-glass-brd);
  border-radius: var(--erx-radius-lg);
  padding: clamp(2rem, 6vw, 3.4rem);
  box-shadow: var(--erx-shadow-lg);
}
.erx-success__ring {
  width: 88px; height: 88px; border-radius: 50%;
  background: var(--erx-grad-blue); color: #fff;
  display: grid; place-items: center; margin: 0 auto 1.6rem;
  font-size: 2.4rem; box-shadow: 0 16px 34px rgba(37,99,194,.42);
}
.erx-success__card h1 { font-size: clamp(1.8rem, 4vw, 2.5rem); }
.erx-success__card p { color: var(--erx-muted); }

/* ==========================================================================
   ANIMATIES
   ========================================================================== */
.erx-reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.erx-reveal.is-in { opacity: 1; transform: none; }

@keyframes erxFloat { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
.erx-float { animation: erxFloat 6s ease-in-out infinite; }

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 980px) {
  .erx-hero__grid,
  .erx-intro__grid,
  .erx-product__grid,
  .erx-ingredients__grid,
  .erx-order__grid { grid-template-columns: 1fr; }
  .erx-hero__visual { max-width: 420px; margin-inline: auto; }
  .erx-product__stage { max-width: 420px; margin-inline: auto; }
  .erx-benefit-grid { grid-template-columns: repeat(2, 1fr); }
  .erx-quality__grid { grid-template-columns: repeat(2, 1fr); }
  .erx-footer__grid { grid-template-columns: 1fr 1fr; }
  .erx-order__aside { order: -1; }
}

@media (max-width: 720px) {
  .erx-menu {
    position: fixed; inset: 72px 0 auto 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--erx-white);
    border-bottom: 1px solid var(--erx-silver);
    padding: .5rem var(--erx-gutter) 1.2rem;
    box-shadow: var(--erx-shadow-md);
    transform: translateY(-140%); transition: transform .4s ease; z-index: 55;
  }
  .erx-menu.is-open { transform: translateY(0); }
  .erx-menu li { border-bottom: 1px solid rgba(196,205,216,.4); }
  .erx-menu li:last-child { border: none; }
  .erx-menu a { display: block; padding: .95rem 0; }
  .erx-nav__cta { display: none; }
  .erx-burger { display: flex; }
}

@media (max-width: 560px) {
  .erx-benefit-grid,
  .erx-quality__grid,
  .erx-footer__grid { grid-template-columns: 1fr; }
  .erx-footer__bottom { flex-direction: column; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .erx-reveal { opacity: 1; transform: none; }
}

/* zichtbare focus voor toegankelijkheid */
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 3px solid var(--erx-blue-bright);
  outline-offset: 2px;
}