/* ============================================================
   CsixtyLabs — Main Stylesheet
   Design system: "The Clinical Curator" (DESIGN.md)
   Palette: #435128 | #f9f9f7 | #1a1c1b | #745b18
   Fonts: Noto Serif (headings) + Inter (body/UI)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Noto+Serif:ital,wght@0,400;0,600;0,700;1,400;1,600&family=Inter:wght@300;400;500;600&display=swap');

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* Primary palette */
  --green:        #435128;   /* primary */
  --green-dark:   #2c3b1a;   /* primary dark */
  --green-light:  #5a693e;   /* primary_container */
  --amber:        #745b18;   /* secondary / gold accent */
  --amber-light:  #8c7230;
  --amber-display:#C68A2E;   /* used for decorative labels only */

  /* Surface hierarchy (DESIGN.md §2) */
  --surface:          #f9f9f7;  /* base page bg */
  --surface-low:      #f4f4f2;  /* subtle grouping */
  --surface-mid:      #eeeeec;  /* interactive zones */
  --surface-high:     #ffffff;  /* hero cards, inputs */
  --surface-dark:     #1a1c1b;  /* charcoal — on-surface */
  --on-surface:       #1a1c1b;
  --on-surface-var:   #3f4440;

  /* Legacy aliases (keep for component compat) */
  --cream:    var(--surface);
  --charcoal: var(--surface-dark);
  --white:    var(--surface-high);
  --grey-100: var(--surface-low);
  --grey-200: var(--surface-mid);
  --grey-400: #9a9994;
  --grey-600: #5a5e5a;

  /* Ghost border (DESIGN.md §4 — 10% opacity, never solid) */
  --ghost:  rgba(26,28,27,0.10);
  --border: 1px solid var(--ghost);

  --radius:     6px;        /* buttons, cards */
  --radius-lg:  12px;
  /* Ambient shadow — DESIGN.md §4 */
  --shadow:    0 4px 20px rgba(26,28,27,0.05);
  --shadow-lg: 0 20px 40px rgba(26,28,27,0.04);

  --transition: 0.25s ease;
  --max-width:  1140px;
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--surface);
  color: var(--on-surface);
  line-height: 1.75;
  font-weight: 400;
}

/* Noto Serif for all headings — "Traditional Authority" (DESIGN.md §3) */
h1, h2, h3, h4, h5 {
  font-family: 'Noto Serif', serif;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;   /* tight letter-spacing for premium feel */
  color: var(--on-surface);
}

h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }
h4 { font-size: 1.1rem; }

p { margin-bottom: 1rem; }
a { color: var(--green); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--amber-display); }

img { max-width: 100%; display: block; }
ul { list-style: none; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Sections — separated by background-color shift ONLY (No-Line Rule) */
.section { padding: 96px 0; }
.section--grey { background: var(--surface-low); }
.section--green { background: var(--green); color: var(--surface); }
.section--charcoal { background: var(--surface-dark); color: var(--surface); }

.section-label {
  font-family: 'Inter', sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.20em;
  text-transform: uppercase;
  color: var(--amber-display);
  margin-bottom: 14px;
}

.section-title { margin-bottom: 1.2rem; }
.section-subtitle {
  font-size: 1.05rem;
  color: var(--grey-600);
  max-width: 640px;
  margin-bottom: 2.8rem;
}
.section--green .section-subtitle,
.section--charcoal .section-subtitle { color: rgba(249,249,247,0.72); }

/* ---- Buttons — gradient per DESIGN.md §5 ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 13px 28px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
  outline: none;
}

/* Primary — gradient olive (DESIGN.md: primary → primary_container at 135°) */
.btn-primary {
  background: linear-gradient(135deg, var(--green) 0%, var(--green-light) 100%);
  color: var(--surface-high);
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--green-dark) 0%, var(--green) 100%);
  color: var(--surface-high);
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

/* Amber CTA — gold gradient */
.btn-amber {
  background: linear-gradient(135deg, #C68A2E 0%, #d9a44a 100%);
  color: var(--surface-high);
}
.btn-amber:hover {
  background: linear-gradient(135deg, #b07a22 0%, #C68A2E 100%);
  color: var(--surface-high);
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

/* Ghost / outline — DESIGN.md secondary button */
.btn-outline {
  background: var(--surface-high);
  color: var(--green);
  outline: 1px solid rgba(67,81,40,0.20);  /* ghost border */
}
.btn-outline:hover {
  background: var(--surface-low);
  color: var(--green-dark);
  outline-color: rgba(67,81,40,0.40);
}

.btn-outline-light {
  background: transparent;
  color: var(--surface);
  outline: 1px solid rgba(249,249,247,0.35);
}
.btn-outline-light:hover {
  background: rgba(249,249,247,0.10);
  color: var(--surface);
  outline-color: rgba(249,249,247,0.65);
}

.btn-sm  { padding: 9px 18px; font-size: 0.8rem; }
.btn-lg  { padding: 16px 36px; font-size: 1rem; }

/* ---- Navigation — Glassmorphism (DESIGN.md §2 "Glass & Gradient") ---- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(249,249,247,0.80);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  /* No border bottom — No-Line Rule */
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 88px;
  gap: 32px;
}

/* Logo — larger on homepage feel */
.nav__logo {
  font-family: 'Noto Serif', serif;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--green);
  text-decoration: none;
  flex-shrink: 0;
}
.nav__logo span { color: var(--amber-display); }
.nav__logo img,
.nav__logo-img {
  height: 68px;
  width: auto;
  display: block;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav__links a {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--on-surface-var);
  letter-spacing: 0.02em;
  transition: color var(--transition);
}
.nav__links a:hover,
.nav__links a.active { color: var(--green); }

.nav__actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}

.cart-icon {
  position: relative;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.3rem;
  color: var(--on-surface-var);
  transition: color var(--transition);
  text-decoration: none;
  display: flex;
  align-items: center;
}
.cart-icon:hover { color: var(--green); }

.cart-badge {
  position: absolute;
  top: -6px;
  right: -8px;
  background: var(--amber-display);
  color: var(--white);
  border-radius: 50%;
  width: 18px;
  height: 18px;
  font-size: 0.65rem;
  font-weight: 700;
  font-family: 'Inter', sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--on-surface);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ---- Language Switcher ---- */
.lang-switcher {
  position: relative;
}
.lang-trigger {
  background: none;
  border: 1px solid var(--ghost);
  border-radius: var(--radius);
  padding: 5px 10px;
  font-size: 0.8rem;
  font-weight: 600;
  font-family: 'Inter', sans-serif;
  cursor: pointer;
  color: var(--on-surface-var);
  white-space: nowrap;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  gap: 4px;
}
.lang-trigger:hover {
  background: var(--surface-low);
  color: var(--green);
  border-color: rgba(67,81,40,0.30);
}
.lang-menu {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--white);
  border: var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  min-width: 155px;
  z-index: 200;
  overflow: hidden;
  padding: 4px 0;
}
.lang-switcher.lang-open .lang-menu { display: block; }
.lang-option {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 9px 14px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  font-size: 0.82rem;
  color: var(--on-surface-var);
  text-align: left;
  transition: background var(--transition), color var(--transition);
}
.lang-option:hover { background: var(--surface-low); color: var(--green); }
.lang-option--active { color: var(--green); font-weight: 600; }
.lang-flag { font-size: 1.05rem; }
.lang-name { flex: 1; }

/* ---- Hero ---- */
.hero {
  background: var(--green);
  color: var(--surface);
  padding: 100px 0 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -60px; right: -80px;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: rgba(198,138,46,0.10);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -100px; left: -60px;
  width: 350px; height: 350px;
  border-radius: 50%;
  background: rgba(249,249,247,0.05);
  pointer-events: none;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero__label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.20em;
  text-transform: uppercase;
  color: var(--amber-display);
  margin-bottom: 16px;
}

.hero__title {
  font-size: clamp(2.4rem, 5.5vw, 3.8rem);
  color: var(--surface);
  margin-bottom: 12px;
  font-style: italic;
}
.hero__title span { color: var(--amber-display); font-style: normal; }

.hero__tagline {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: rgba(249,249,247,0.80);
  font-family: 'Noto Serif', serif;
  font-style: italic;
  margin-bottom: 24px;
}

.hero__desc {
  color: rgba(249,249,247,0.72);
  font-size: 1rem;
  max-width: 480px;
  margin-bottom: 40px;
}

.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; }

.hero__visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

/* ---- Trust Bar ---- */
.trust-bar {
  background: var(--surface-dark);
  padding: 28px 0;
}
.trust-bar__inner {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--surface);
}
.trust-item__icon { display: flex; align-items: center; color: var(--amber-display); }
.trust-item__text { font-size: 0.82rem; font-weight: 500; letter-spacing: 0.04em; }

/* ---- Product Cards — DESIGN.md: hover = bg shift, no lift ---- */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;   /* generous spacing */
}

.product-card {
  background: var(--surface-high);
  border-radius: var(--radius-lg);
  outline: 1px solid var(--ghost);  /* ghost border */
  transition: background var(--transition);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.product-card:hover {
  background: var(--surface-low);  /* subtle bg shift, no lift animation */
}

.product-card__image {
  background: var(--surface-low);
  height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.product-card__badge {
  position: absolute;
  top: 14px; right: 14px;
  background: linear-gradient(135deg, #C68A2E 0%, #d9a44a 100%);
  color: var(--white);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 20px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.product-card__bottle-icon { font-size: 5rem; color: var(--green-light); opacity: 0.7; }

.product-card__cta {
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: var(--surface-low);
  border-top: 1px solid var(--ghost);
  border-bottom: 1px solid var(--ghost);
}
.product-card__body {
  padding: 20px 20px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-card__title {
  font-family: 'Noto Serif', serif;
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--on-surface);
}

.product-card__desc {
  font-size: 0.875rem;
  color: var(--grey-600);
  margin-bottom: 18px;
  flex: 1;
}

.product-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
}

.product-card__price {
  font-family: 'Noto Serif', serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--green);
}
.product-card__price span {
  font-size: 0.78rem;
  color: var(--grey-400);
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  display: block;
}

/* ---- Quote Block ---- */
.quote-block { background: var(--surface-dark); padding: 72px 0; }
.quote-block__inner { text-align: center; max-width: 700px; margin: 0 auto; }
.quote-block__text {
  font-family: 'Noto Serif', serif;
  font-size: clamp(1.2rem, 3vw, 1.75rem);
  font-style: italic;
  color: var(--surface);
  line-height: 1.6;
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}
.quote-block__cite {
  font-size: 0.82rem;
  color: var(--amber-display);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 500;
}

/* ---- Testimonials ---- */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 28px;
}
.testimonial-card {
  background: var(--surface-high);
  border-radius: var(--radius-lg);
  padding: 32px;
  outline: 1px solid var(--ghost);
}
.testimonial-card__stars { color: var(--amber-display); font-size: 0.9rem; margin-bottom: 14px; letter-spacing: 3px; }
.testimonial-card__text { font-size: 0.9rem; color: var(--grey-600); font-style: italic; margin-bottom: 18px; }
.testimonial-card__author { font-size: 0.8rem; font-weight: 600; color: var(--on-surface); }

/* ---- C60 Intro ---- */
.c60-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}
.c60-intro__visual { display: flex; justify-content: center; }
.molecule-graphic {
  width: 260px; height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, var(--green-light), var(--green-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Noto Serif', serif;
  font-size: 2.8rem;
  color: rgba(249,249,247,0.9);
  box-shadow: 0 16px 48px rgba(67,81,40,0.28);
  position: relative;
}
.molecule-graphic::after {
  content: 'C₆₀';
  position: absolute;
  bottom: 40px;
  font-size: 1rem;
  color: var(--amber-display);
  letter-spacing: 0.1em;
}

/* ---- Science Library ---- */
.study-filters {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}
.filter-btn {
  padding: 7px 18px;
  border-radius: 20px;
  outline: 1px solid var(--ghost);
  background: transparent;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--grey-600);
  cursor: pointer;
  transition: all var(--transition);
  font-family: 'Inter', sans-serif;
  border: none;
}
.filter-btn:hover,
.filter-btn.active {
  background: var(--green);
  color: var(--surface-high);
  outline-color: transparent;
}

.studies-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 28px;
}
.study-card {
  background: var(--surface-high);
  border-radius: var(--radius-lg);
  padding: 28px;
  outline: 1px solid var(--ghost);
  transition: background var(--transition);
}
.study-card:hover { background: var(--surface-low); }
.study-card__category {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber-display);
  margin-bottom: 8px;
}
.study-card__title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--on-surface);
  margin-bottom: 6px;
  font-family: 'Inter', sans-serif;
}
.study-card__meta { font-size: 0.78rem; color: var(--grey-400); margin-bottom: 12px; }
.study-card__summary { font-size: 0.85rem; color: var(--grey-600); margin-bottom: 14px; }
.study-card__link { font-size: 0.78rem; font-weight: 600; color: var(--green); display: inline-flex; align-items: center; gap: 4px; }

/* ---- Product Detail ---- */
.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: start;
}

.product-detail__left {
  position: sticky;
  top: 100px;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.product-detail__image {
  background: var(--on-surface);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.product-detail__cta {
  background: var(--surface-high);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  outline: 1px solid var(--ghost);
  padding: 20px 24px 16px;
}

.product-detail__category {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber-display);
  margin-bottom: 14px;
}
.product-detail__title { font-size: clamp(1.8rem, 3.5vw, 2.4rem); margin-bottom: 8px; }
.product-detail__tagline { font-size: 1.05rem; color: var(--grey-600); font-style: italic; margin-bottom: 20px; }
.product-detail__price-row {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 32px;
}
.product-detail__price {
  font-family: 'Noto Serif', serif;
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--green);
}
.product-detail__volume { font-size: 0.875rem; color: var(--grey-400); }

.product-specs {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
  margin-bottom: 20px;
}
.product-spec {
  background: var(--surface-low);
  border-radius: 8px;
  padding: 10px 12px;
}
.product-spec__label {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--grey-400);
  margin-bottom: 4px;
}
.product-spec__value { font-size: 0.82rem; font-weight: 500; color: var(--on-surface); }

.product-detail__add {
  display: flex;
  gap: 14px;
  margin-bottom: 24px;
  align-items: center;
}

.quantity-control {
  display: flex;
  align-items: center;
  background: var(--surface-high);
  border-radius: var(--radius);
  outline: 1px solid var(--ghost);
  overflow: hidden;
}
.qty-btn {
  width: 40px;
  height: 48px;
  background: var(--surface-low);
  border: none;
  cursor: pointer;
  font-size: 1.1rem;
  color: var(--on-surface);
  transition: background var(--transition);
}
.qty-btn:hover { background: var(--surface-mid); }
.qty-input {
  width: 52px;
  height: 48px;
  text-align: center;
  border: none;
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--on-surface);
  background: var(--surface-high);
  outline: none;
}
.qty-input::-webkit-outer-spin-button,
.qty-input::-webkit-inner-spin-button { -webkit-appearance: none; }

.shipping-note {
  font-size: 0.82rem;
  color: var(--grey-600);
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 28px;
}

/* Accordion — no divider lines */
.product-accordion { margin-bottom: 0; }
.product-accordion__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 0;
  cursor: pointer;
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--on-surface);
  user-select: none;
  /* Subtle bottom using background (no border) via pseudo */
  border-bottom: 1px solid rgba(26,28,27,0.08);
}
.product-accordion__header:hover { color: var(--green); }
.product-accordion__icon { transition: transform var(--transition); }
.product-accordion__body {
  display: none;
  padding: 18px 0;
  font-size: 0.875rem;
  color: var(--grey-600);
  border-bottom: 1px solid rgba(26,28,27,0.08);
}
.product-accordion--open .product-accordion__body { display: block; }
.product-accordion--open .product-accordion__icon { transform: rotate(45deg); }

/* ---- Quality Page ---- */
.quality-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}
.quality-card {
  background: var(--surface-high);
  border-radius: var(--radius-lg);
  padding: 36px;
  outline: 1px solid var(--ghost);
}
.quality-card__icon { font-size: 2rem; color: var(--amber-display); margin-bottom: 18px; }
.quality-card__title { font-size: 1.1rem; margin-bottom: 12px; }
.quality-card__text { font-size: 0.875rem; color: var(--grey-600); }

.process-steps { display: flex; flex-direction: column; gap: 0; max-width: 760px; margin: 0 auto; }
.process-step {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 28px;
  padding-bottom: 40px;
  position: relative;
}
.process-step:not(:last-child)::before {
  content: '';
  position: absolute;
  left: 27px; top: 56px; bottom: 0;
  width: 2px;
  background: var(--ghost);
}
.process-step__number {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--green) 0%, var(--green-light) 100%);
  color: var(--surface-high);
  display: flex; align-items: center; justify-content: center;
  font-family: 'Noto Serif', serif;
  font-size: 1.2rem;
  font-weight: 700;
  flex-shrink: 0;
  z-index: 1;
}
.process-step__content h4 { margin-bottom: 6px; }
.process-step__content p { font-size: 0.875rem; color: var(--grey-600); margin: 0; }

/* ---- FAQ ---- */
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid rgba(26,28,27,0.08); }
.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
  cursor: pointer;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--on-surface);
  gap: 20px;
  user-select: none;
}
.faq-question:hover { color: var(--green); }
.faq-toggle {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--surface-low);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  font-size: 1.2rem;
  color: var(--green);
  transition: all var(--transition);
}
.faq-item--open .faq-toggle {
  background: linear-gradient(135deg, var(--green) 0%, var(--green-light) 100%);
  color: var(--surface-high);
  transform: rotate(45deg);
}
.faq-answer {
  display: none;
  padding-bottom: 22px;
  font-size: 0.875rem;
  color: var(--grey-600);
  line-height: 1.85;
}
.faq-item--open .faq-answer { display: block; }

/* ---- About ---- */
.about-hero { background: var(--green); padding: 80px 0; color: var(--surface); }
.about-story {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}
.about-values { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 28px; }
.value-card { text-align: center; padding: 32px 22px; }
.value-card__icon { font-size: 2.2rem; color: var(--amber-display); margin-bottom: 16px; }
.value-card__title { font-size: 1rem; margin-bottom: 10px; }
.value-card__text { font-size: 0.85rem; color: var(--grey-600); }

/* ---- Contact / B2B ---- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 72px;
  align-items: start;
}
.contact-info h3 { margin-bottom: 24px; }
.contact-method { display: flex; align-items: flex-start; gap: 16px; margin-bottom: 24px; }
.contact-method__icon { font-size: 1.4rem; color: var(--amber-display); flex-shrink: 0; margin-top: 2px; }
.contact-method__text h5 { font-size: 0.85rem; font-family: 'Inter', sans-serif; margin-bottom: 2px; }
.contact-method__text p { font-size: 0.85rem; color: var(--grey-600); margin: 0; }

/* ---- Forms — DESIGN.md §5 Input Fields ---- */
.form-card {
  background: var(--surface-high);
  border-radius: var(--radius-lg);
  padding: 40px;
  outline: 1px solid var(--ghost);
}
.form-card h3 { margin-bottom: 28px; }

.form-row { margin-bottom: 20px; }
.form-row--2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--grey-600);
  margin-bottom: 8px;
}

/* Inputs: no border, only bottom line — DESIGN.md §5 */
input[type="text"],
input[type="email"],
input[type="tel"],
input[type="number"],
select,
textarea {
  width: 100%;
  padding: 14px 16px;                    /* "unhurried" padding */
  border: none;
  border-bottom: 2px solid rgba(26,28,27,0.15);
  border-radius: 0;
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  color: var(--on-surface);
  background: var(--surface-high);
  transition: border-color var(--transition);
  outline: none;
  appearance: none;
  -webkit-appearance: none;
}
input:focus, select:focus, textarea:focus {
  border-bottom-color: var(--green);
}
select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235a5e5a' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 38px;
  cursor: pointer;
}
textarea { resize: vertical; min-height: 120px; }

.form-note { font-size: 0.78rem; color: var(--grey-400); margin-top: 6px; }

/* ---- Cart ---- */
.cart-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 48px;
  align-items: start;
}

.cart-item {
  display: grid;
  grid-template-columns: 80px 1fr auto;
  gap: 20px;
  align-items: center;
  padding: 24px 0;
  border-bottom: 1px solid rgba(26,28,27,0.08);
}
.cart-item__image {
  width: 80px; height: 80px;
  background: var(--surface-low);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 2rem;
  color: var(--green-light);
}
.cart-item__name { font-weight: 600; font-size: 0.95rem; margin-bottom: 4px; }
.cart-item__volume { font-size: 0.8rem; color: var(--grey-400); margin-bottom: 8px; }
.cart-item__qty { display: flex; align-items: center; gap: 10px; }
.cart-item__price {
  font-family: 'Noto Serif', serif;
  font-size: 1.1rem; font-weight: 700;
  color: var(--green);
  text-align: right;
  min-width: 80px;
}
.remove-btn {
  background: none; border: none;
  color: var(--grey-400);
  cursor: pointer; font-size: 1rem;
  padding: 4px;
  transition: color var(--transition);
  display: block; margin-top: 4px; text-align: right;
}
.remove-btn:hover { color: #c0392b; }

.cart-empty {
  text-align: center;
  padding: 80px 24px;
  color: var(--grey-400);
}
.cart-empty__icon { font-size: 3.5rem; margin-bottom: 18px; }
.cart-empty__title { font-size: 1.2rem; margin-bottom: 10px; color: var(--on-surface); }

.order-summary {
  background: var(--surface-high);
  border-radius: var(--radius-lg);
  padding: 32px;
  outline: 1px solid var(--ghost);
  position: sticky;
  top: 100px;
}
.order-summary h3 { margin-bottom: 22px; font-size: 1.1rem; }
.summary-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.875rem;
  padding: 8px 0;
  color: var(--grey-600);
}
.summary-row--total {
  border-top: 1px solid rgba(26,28,27,0.12);
  margin-top: 12px;
  padding-top: 16px;
  font-weight: 700;
  font-size: 1rem;
  color: var(--on-surface);
}
.summary-row--total span:last-child {
  font-family: 'Noto Serif', serif;
  font-size: 1.2rem;
  color: var(--green);
}

.shipping-selector { margin: 18px 0; }

/* ---- Checkout ---- */
.checkout-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 48px;
  align-items: start;
}

.checkout-section {
  background: var(--surface-high);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  outline: 1px solid var(--ghost);
  margin-bottom: 12px;
}
.checkout-section h3 { margin-bottom: 14px; font-size: 1.05rem; }
.checkout-section .form-row { margin-bottom: 12px; }
.checkout-section label { margin-bottom: 4px; }
.checkout-section input,
.checkout-section select { padding: 9px 12px; }
.checkout-section .form-row--2 { gap: 12px; }

.payment-methods { display: flex; flex-direction: column; gap: 12px; }
.payment-method {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  background: var(--surface-low);
  border-radius: 8px;
  cursor: pointer;
  transition: background var(--transition);
  outline: 1px solid transparent;
}
.payment-method:has(input:checked) {
  background: var(--surface-high);
  outline-color: var(--green);
}
.payment-method input { accent-color: var(--green); }
.payment-method__logo { font-size: 1.4rem; }
.payment-method__name { font-weight: 500; font-size: 0.9rem; }

.mollie-badge {
  text-align: center;
  margin-top: 16px;
  font-size: 0.72rem;
  color: var(--grey-400);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

/* ---- Result pages ---- */
.result-page {
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 24px;
}
.result-card {
  background: var(--surface-high);
  border-radius: 16px;
  padding: 56px 48px;
  text-align: center;
  max-width: 520px;
  width: 100%;
  outline: 1px solid var(--ghost);
  box-shadow: var(--shadow-lg);
}
.result-card__icon { font-size: 4rem; margin-bottom: 22px; }
.result-card__title { margin-bottom: 14px; }
.result-card__text { color: var(--grey-600); margin-bottom: 28px; }

/* ---- Page Hero (inner pages) ---- */
.page-hero {
  background: var(--green);
  padding: 36px 0 28px;
  color: var(--surface);
  position: relative;
}
.page-hero .section-label { color: var(--amber-display); }
.page-hero h1 { color: var(--surface); }
.page-hero p { color: rgba(249,249,247,0.76); font-size: 1.05rem; max-width: 580px; }

/* Page hero with background photo */
.page-hero--img {
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  position: relative;   /* ensures ::before overlay is contained within the section */
  overflow: hidden;
}
.page-hero--img::before {
  content: '';
  position: absolute;
  inset: 0;
  /* dark olive gradient overlay — keeps brand palette, tames any photo colour */
  background: linear-gradient(135deg, rgba(43,59,26,0.88) 0%, rgba(26,28,27,0.80) 100%);
  z-index: 0;
}
.page-hero--img .container { position: relative; z-index: 1; }

/* Homepage section with subtle photo texture */
.section--img {
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  position: relative;
}
.section--img::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(249,249,247,0.93);
  z-index: 0;
}
.section--img .container { position: relative; z-index: 1; }

/* ---- Footer ---- */
.footer {
  background: var(--surface-dark);
  color: var(--grey-400);
  padding: 64px 0 0;
}
.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 56px;
}
.footer__brand-name {
  font-family: 'Noto Serif', serif;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--surface);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.footer__brand-name span { color: var(--amber-display); }
.footer__tagline { font-size: 0.82rem; font-style: italic; color: var(--grey-400); margin-bottom: 16px; }
.footer__desc { font-size: 0.82rem; color: var(--grey-400); line-height: 1.75; }

.footer__heading {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--surface);
  margin-bottom: 14px;
}
.footer__links a {
  display: block;
  font-size: 0.82rem;
  color: var(--grey-400);
  margin-bottom: 8px;
  transition: color var(--transition);
}
.footer__links a:hover { color: var(--amber-display); }

.footer__disclaimer {
  padding: 28px 0;
  font-size: 0.72rem;
  color: var(--grey-600);
  line-height: 1.75;
  /* no border — use spacing to separate */
  margin-top: 8px;
  background: rgba(0,0,0,0.15);
  padding-left: 24px;
  padding-right: 24px;
  margin-left: -24px;
  margin-right: -24px;
}
.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding: 20px 0;
  font-size: 0.75rem;
  color: var(--grey-600);
  background: rgba(0,0,0,0.10);
  margin-left: -24px;
  margin-right: -24px;
  padding-left: 24px;
  padding-right: 24px;
}

/* ---- Newsletter (in footer) ---- */
.newsletter-form {
  display: flex;
  gap: 10px;
  margin-top: 18px;
}
.newsletter-form input {
  flex: 1;
  padding: 10px 14px;
  border: none;
  border-bottom: 2px solid rgba(249,249,247,0.20);
  border-radius: 0;
  background: transparent;
  color: var(--surface);
  font-size: 0.85rem;
  font-family: 'Inter', sans-serif;
}
.newsletter-form input::placeholder { color: var(--grey-600); }
.newsletter-form input:focus { border-bottom-color: var(--amber-display); outline: none; }
.newsletter-form button {
  padding: 10px 18px;
  background: linear-gradient(135deg, #C68A2E 0%, #d9a44a 100%);
  color: var(--white);
  border: none;
  border-radius: var(--radius);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity var(--transition);
}
.newsletter-form button:hover { opacity: 0.88; }

/* ---- Alerts ---- */
.alert {
  padding: 14px 18px;
  border-radius: var(--radius);
  font-size: 0.875rem;
  margin-bottom: 18px;
}
.alert-success { background: rgba(67,81,40,0.10); color: var(--green-dark); }
.alert-error   { background: rgba(192,57,43,0.08); color: #c0392b; }
.alert-info    { background: rgba(198,138,46,0.10); color: #7a5010; }

/* ---- Utilities ---- */
.text-center  { text-align: center; }
.text-amber   { color: var(--amber-display); }
.text-green   { color: var(--green); }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mb-0 { margin-bottom: 0; }
.hidden { display: none !important; }

.disclaimer-box {
  background: rgba(198,138,46,0.07);
  border-radius: 8px;
  padding: 22px 26px;
  font-size: 0.8rem;
  color: var(--grey-600);
  line-height: 1.80;
}

.tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.tag-green { background: rgba(67,81,40,0.10); color: var(--green); }
.tag-amber { background: rgba(198,138,46,0.12); color: #8a5a10; }

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .hero__inner,
  .c60-intro,
  .about-story,
  .product-detail,
  .cart-layout,
  .checkout-layout,
  .contact-grid { grid-template-columns: 1fr; gap: 44px; }
  .hero__visual { order: -1; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .product-detail__left  { position: static; }
  .product-detail__image { height: 280px; border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
  .form-row--2 { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  /* --- Nav --- */
  .nav__inner { height: 64px; gap: 12px; }
  .nav__logo-img, .nav__logo img { height: 50px; }
  .nav__links { display: none; }
  .nav-hamburger { display: flex; }
  .nav__links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 64px;
    left: 0; right: 0;
    background: rgba(249,249,247,0.96);
    backdrop-filter: blur(20px);
    padding: 28px 24px;
    gap: 20px;
    z-index: 99;
    box-shadow: var(--shadow);
  }
  /* Hide "Bestellen" button in nav — it's in the hamburger menu */
  .nav__actions .btn { display: none; }
  .nav__actions { gap: 10px; }

  /* --- Sections --- */
  .section { padding: 52px 0; }
  .container { padding: 0 16px; }

  /* --- Typography --- */
  .page-hero h1 { font-size: 1.4rem; }
  .page-hero p  { font-size: 0.9rem; }

  /* --- Product specs: 2 col on phones --- */
  .product-specs { grid-template-columns: 1fr 1fr; }

  /* --- Cards: reduce padding --- */
  .quality-card { padding: 22px 20px; }
  .checkout-section { padding: 16px 18px; }

  /* --- Grids --- */
  .footer__grid { grid-template-columns: 1fr; }
  .products-grid { grid-template-columns: 1fr; }
  .trust-bar__inner { flex-direction: column; gap: 20px; }

  /* --- Cart --- */
  .cart-item { grid-template-columns: 64px 1fr; }
  .cart-item__price { grid-column: 2; }

  /* --- Footer newsletter --- */
  .newsletter-form { flex-direction: column; }
}