/* ============================================================
   Botany Bay Herbs — ARNO
   Luxury minimalist styling. Forest green / muted gold / ivory.
   ============================================================ */

:root {
  --forest: #234233;
  --forest-dark: #182e24;
  --gold: #B88A44;
  --gold-light: #d4ac6e;
  --ivory: #F7F5F0;
  --ivory-deep: #EFEBE2;
  --charcoal: #2b2b28;
  --charcoal-soft: #55564f;
  --white: #ffffff;

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  --container-width: 1180px;
  --radius: 2px;
  --transition: 220ms cubic-bezier(0.4, 0, 0.2, 1);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--charcoal);
  background: var(--ivory);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}

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

a { color: inherit; text-decoration: none; }

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 32px;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--forest);
  margin: 0;
  letter-spacing: 0.01em;
}

em { font-style: italic; color: var(--gold); }

p { margin: 0; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 15px 34px;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  box-sizing: border-box;
}

.btn-primary {
  background: var(--forest);
  color: var(--ivory);
  border-color: var(--forest);
}
.btn-primary:hover {
  background: var(--forest-dark);
  border-color: var(--forest-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(24, 46, 36, 0.28);
}

.btn-ghost-light {
  background: transparent;
  color: var(--ivory);
  border-color: rgba(247, 245, 240, 0.55);
}
.btn-ghost-light:hover {
  background: rgba(247, 245, 240, 0.12);
  border-color: var(--ivory);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
}

.btn-small { padding: 10px 22px; font-size: 11px; }
.btn-full { width: 100%; margin-top: 4px; }

/* ---------- Announcement bar ---------- */
.announcement-bar {
  background: var(--forest);
  color: var(--ivory);
  text-align: center;
  font-size: 12.5px;
  letter-spacing: 0.05em;
  padding: 10px 16px;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247, 245, 240, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(35, 66, 51, 0.1);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-icon {
  width: 37px;
  height: 37px;
  object-fit: contain;
  flex-shrink: 0;
}
.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}
.logo-mark {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 700;
  color: var(--forest);
  letter-spacing: 0.06em;
  white-space: nowrap;
}
.logo-tagline {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--gold);
  margin-top: 4px;
  white-space: nowrap;
}

.main-nav {
  display: flex;
  gap: 36px;
  flex: 1;
  justify-content: center;
}
.main-nav a {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--charcoal);
  position: relative;
  padding: 4px 0;
  transition: color var(--transition);
}
.main-nav a:hover { color: var(--forest); }
.main-nav a::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transition: transform var(--transition);
}
.main-nav a:hover::after { transform: scaleX(1); }

.header-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.icon-btn {
  position: relative;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--forest);
  display: inline-flex;
  padding: 6px;
}
.cart-count {
  position: absolute;
  top: -2px;
  right: -2px;
  background: var(--gold);
  color: var(--white);
  font-size: 9px;
  font-weight: 600;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 28px;
  height: 28px;
  background: none;
  border: none;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 1.5px;
  background: var(--forest);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ---------- Eyebrow / section headers ---------- */
.eyebrow {
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 600;
  margin-bottom: 14px;
}
.eyebrow-light { color: var(--gold-light); }
.eyebrow-center { text-align: center; }


.section-title {
  font-size: clamp(30px, 4vw, 44px);
  margin-bottom: 18px;
}
.section-title.center { text-align: center; }

.section-sub {
  max-width: 620px;
  color: var(--charcoal-soft);
  font-size: 16px;
}
.section-sub.center { margin: 0 auto 56px; text-align: center; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}
.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(24, 46, 36, 0.5) 0%, rgba(24, 46, 36, 0.32) 40%, rgba(24, 46, 36, 0.9) 100%);
}
.hero-content {
  position: relative;
  z-index: 1;
  padding-bottom: 100px;
  max-width: 620px;
}
.hero-tagline {
  font-size: 13px;
  letter-spacing: 0.22em;
  margin-bottom: 20px;
}
.hero h1 {
  color: var(--ivory);
  font-size: clamp(40px, 6vw, 66px);
  line-height: 1.18;
  letter-spacing: 0.005em;
  margin: 0 0 26px;
  max-width: 560px;
}
.hero-sub {
  color: rgba(247, 245, 240, 0.88);
  font-size: 17px;
  line-height: 1.7;
  max-width: 460px;
  margin-bottom: 40px;
}
.hero-actions {
  display: flex;
  align-items: stretch;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-actions .btn {
  min-height: 52px;
}

/* ---------- Trust strip ---------- */
.trust-strip {
  background: var(--ivory-deep);
  border-bottom: 1px solid rgba(35, 66, 51, 0.08);
}
.trust-inner {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  padding: 44px 32px;
  text-align: center;
}
.trust-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.trust-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(35, 66, 51, 0.06);
  color: var(--forest);
}
.trust-num {
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 700;
  color: var(--forest);
}
.trust-label {
  font-size: 11.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--charcoal-soft);
  max-width: 140px;
}

/* ---------- Product section ---------- */
.product-section {
  padding: 110px 0;
}
.product-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.product-gallery {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.product-media {
  background: var(--ivory-deep);
  border-radius: 4px;
  overflow: hidden;
  position: relative;
  aspect-ratio: 4/5;
  cursor: zoom-in;
}
.product-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 400ms ease;
}
.product-media:hover img { transform: scale(1.04); }
.zoom-hint {
  position: absolute;
  bottom: 16px;
  right: 16px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(35, 66, 51, 0.85);
  color: var(--ivory);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  padding: 8px 14px;
  border-radius: var(--radius);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity var(--transition), transform var(--transition);
  pointer-events: none;
}
.product-media:hover .zoom-hint,
.product-media:focus-visible .zoom-hint {
  opacity: 1;
  transform: translateY(0);
}

.product-thumbs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.product-thumb {
  padding: 0;
  border: 2px solid transparent;
  border-radius: 4px;
  overflow: hidden;
  background: var(--ivory-deep);
  cursor: pointer;
  aspect-ratio: 1/1;
  transition: border-color var(--transition);
}
.product-thumb img { width: 100%; height: 100%; object-fit: cover; }
.product-thumb:hover { border-color: rgba(184, 138, 68, 0.5); }
.product-thumb.active { border-color: var(--gold); }

.product-info h2 {
  font-size: clamp(36px, 4vw, 52px);
  margin-bottom: 18px;
}
.product-desc {
  color: var(--charcoal-soft);
  font-size: 16px;
  margin-bottom: 22px;
}
.product-rating {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 26px;
}
.stars { color: var(--gold); letter-spacing: 2px; font-size: 14px; }
.rating-text { font-size: 13px; color: var(--charcoal-soft); }

.product-price-row {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin: 4px 0 30px;
  padding: 16px 20px;
  background: var(--ivory-deep);
  border-radius: 6px;
  flex-wrap: wrap;
}
.price-mrp {
  font-size: 15px;
  color: var(--charcoal-soft);
}
.price-mrp s { color: var(--charcoal-soft); }
.price {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 700;
  color: var(--forest);
}
.price-sub { font-size: 13px; color: var(--charcoal-soft); }

/* ---------- Pack selector ---------- */
.pack-selector {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 30px;
  padding-bottom: 30px;
  border-bottom: 1px solid rgba(35, 66, 51, 0.12);
}
.pack-option {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  padding: 20px 12px 16px;
  background: var(--white);
  border: 1.5px solid rgba(35, 66, 51, 0.16);
  border-radius: 6px;
  cursor: pointer;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  text-align: center;
}
.pack-option:hover { border-color: var(--gold); transform: translateY(-2px); }
.pack-option.active {
  border-color: var(--forest);
  box-shadow: 0 0 0 1px var(--forest);
  background: rgba(35, 66, 51, 0.04);
}
.pack-badge {
  position: absolute;
  top: -11px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--forest);
  color: var(--ivory);
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 4px 9px;
  border-radius: 12px;
  white-space: nowrap;
}
.pack-badge-gold { background: var(--gold); color: var(--white); }
.pack-title {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--forest);
  margin-top: 4px;
}
.pack-price {
  font-size: 18px;
  font-weight: 700;
  color: var(--forest);
}
.pack-note {
  font-size: 11px;
  color: var(--charcoal-soft);
  letter-spacing: 0.02em;
}

.quantity-row {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 30px;
  padding: 16px 20px;
  background: var(--ivory-deep);
  border-radius: 6px;
  flex-wrap: wrap;
}
.quantity-label {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--charcoal-soft);
}
.quantity-selector {
  display: flex;
  align-items: center;
  border: 1px solid rgba(35, 66, 51, 0.25);
  border-radius: var(--radius);
  background: var(--white);
}
.qty-btn {
  width: 38px;
  height: 38px;
  background: none;
  border: none;
  font-size: 18px;
  color: var(--forest);
  cursor: pointer;
  transition: background var(--transition);
}
.qty-btn:hover { background: var(--ivory-deep); }
.qty-value {
  width: 36px;
  text-align: center;
  font-size: 15px;
  font-weight: 600;
}
.qty-total {
  margin-left: auto;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--forest);
}

.product-note {
  font-size: 12.5px;
  color: var(--charcoal-soft);
  text-align: center;
  margin: 16px 0 32px;
}

.product-features {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.product-features li {
  font-size: 13.5px;
  color: var(--charcoal-soft);
  padding-left: 22px;
  position: relative;
}
.product-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 10px;
  height: 1px;
  background: var(--gold);
}

/* ---------- Science section ---------- */
.science-section {
  background: var(--forest);
  padding: 110px 0;
  color: var(--ivory);
}
.science-section .eyebrow { color: var(--gold-light); }
.science-section .section-title { color: var(--ivory); }
.science-section .section-sub { color: rgba(247, 245, 240, 0.72); }

.science-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 44px;
  margin-top: 20px;
}
.science-card {
  text-align: center;
  padding: 20px;
}
.science-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 22px;
  border-radius: 50%;
  border: 1px solid rgba(184, 138, 68, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold-light);
}
.science-card h3 {
  color: var(--ivory);
  font-size: 21px;
  margin-bottom: 12px;
}
.science-card p {
  color: rgba(247, 245, 240, 0.7);
  font-size: 14.5px;
}

/* ---------- Ingredients ---------- */
.ingredients-section {
  padding: 110px 0;
}
.ingredient-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 36px;
}
.ingredient-card {
  background: var(--white);
  border: 1px solid rgba(35, 66, 51, 0.1);
  border-radius: 4px;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}
.ingredient-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 48px rgba(35, 66, 51, 0.12);
}
.ingredient-media { aspect-ratio: 4/3; overflow: hidden; }
.ingredient-media img { width: 100%; height: 100%; object-fit: cover; }
.ingredient-body { padding: 30px; }
.ingredient-eyebrow {
  font-size: 12px;
  color: var(--gold);
  font-weight: 700;
  letter-spacing: 0.1em;
  margin-bottom: 10px;
}
.ingredient-body h3 {
  font-size: 22px;
  margin-bottom: 12px;
}
.ingredient-body h3 em { color: var(--forest); }
.ingredient-body p {
  font-size: 14.5px;
  color: var(--charcoal-soft);
}

/* ---------- Founder ---------- */
.founder-section {
  padding: 110px 0;
  background: var(--ivory-deep);
}
.founder-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 72px;
  align-items: center;
}
.founder-media {
  border-radius: 4px;
  overflow: hidden;
  aspect-ratio: 4/5;
}
.founder-media img { width: 100%; height: 100%; object-fit: cover; }
.founder-content h2 {
  font-size: clamp(32px, 4vw, 44px);
  margin-bottom: 22px;
}
.founder-credentials {
  font-family: var(--font-body);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 600;
  margin-top: -14px;
  margin-bottom: 26px;
}
.founder-quote {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 22px;
  color: var(--forest);
  line-height: 1.5;
  margin-bottom: 24px;
  padding-left: 22px;
  border-left: 2px solid var(--gold);
}
.founder-content p:not(.founder-quote):not(.founder-credentials):not(.founder-title) {
  color: var(--charcoal-soft);
  font-size: 15.5px;
  margin-bottom: 24px;
}
.founder-title {
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--forest);
  font-weight: 600;
  margin-bottom: 22px !important;
}
.text-link {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--forest);
  border-bottom: 1px solid var(--gold);
  padding-bottom: 3px;
  transition: color var(--transition);
}
.text-link:hover { color: var(--gold); }

/* ---------- FAQ ---------- */
.faq-section { padding: 110px 0; }
.faq-container { max-width: 780px; }
.faq-list { margin-top: 20px; }
.faq-item {
  border-bottom: 1px solid rgba(35, 66, 51, 0.15);
}
.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 26px 4px;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 500;
  color: var(--forest);
}
.faq-icon {
  font-size: 20px;
  color: var(--gold);
  font-weight: 300;
  transition: transform var(--transition);
  flex-shrink: 0;
}
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-answer {
  overflow: hidden;
}
.faq-answer[hidden] {
  display: none;
}
.faq-item.open .faq-answer {
  padding-bottom: 26px;
  animation: faqReveal 220ms ease;
}
@keyframes faqReveal {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}
.faq-answer p {
  color: var(--charcoal-soft);
  font-size: 14.5px;
  padding-right: 40px;
}

/* ---------- Free guide ---------- */
.guide-section {
  padding: 110px 0;
  background: var(--forest);
}
.guide-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 64px;
  align-items: center;
}
.guide-media {
  border-radius: 4px;
  overflow: hidden;
  aspect-ratio: 4/3;
}
.guide-media img { width: 100%; height: 100%; object-fit: cover; }
.guide-content .eyebrow { color: var(--gold-light); }
.guide-content h2 {
  color: var(--ivory);
  font-size: clamp(28px, 3.6vw, 38px);
  margin-bottom: 18px;
}
.guide-content > p {
  color: rgba(247, 245, 240, 0.75);
  font-size: 15.5px;
  margin-bottom: 30px;
  max-width: 460px;
}
.guide-form {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  max-width: 460px;
}
.guide-form input {
  flex: 1;
  min-width: 220px;
  padding: 15px 18px;
  border: 1px solid rgba(247, 245, 240, 0.3);
  background: rgba(247, 245, 240, 0.06);
  color: var(--ivory);
  border-radius: var(--radius);
  font-size: 14px;
  font-family: var(--font-body);
}
.guide-form input::placeholder { color: rgba(247, 245, 240, 0.5); }
.guide-form input:focus {
  outline: none;
  border-color: var(--gold);
}
.guide-note {
  margin-top: 14px;
  font-size: 13px;
  color: var(--gold-light);
  min-height: 18px;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--forest-dark);
  color: rgba(247, 245, 240, 0.75);
  padding: 80px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.8fr 0.8fr 1.2fr 1.1fr;
  gap: 40px;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(247, 245, 240, 0.1);
}
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 16px;
  font-size: 14px;
}
.footer-contact span:first-child {
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(247, 245, 240, 0.45);
}
.footer-contact a,
.footer-contact-value {
  color: rgba(247, 245, 240, 0.8);
}
.footer-contact a:hover { color: var(--gold-light); }
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-brand .logo-mark { color: var(--ivory); }
.footer-brand p {
  margin-top: 16px;
  font-size: 13.5px;
  max-width: 240px;
  color: rgba(247, 245, 240, 0.55);
}
.footer-col h4 {
  font-family: var(--font-body);
  color: var(--ivory);
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 20px;
  font-weight: 600;
}
.footer-col a {
  display: block;
  font-size: 14px;
  margin-bottom: 12px;
  color: rgba(247, 245, 240, 0.65);
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--gold-light); }
.footer-text {
  font-size: 13.5px;
  color: rgba(247, 245, 240, 0.55);
  margin-bottom: 16px;
}
.footer-form {
  display: flex;
  border: 1px solid rgba(247, 245, 240, 0.25);
  border-radius: var(--radius);
  overflow: hidden;
}
.footer-form input {
  flex: 1;
  background: transparent;
  border: none;
  padding: 12px 14px;
  color: var(--ivory);
  font-size: 13px;
}
.footer-form input::placeholder { color: rgba(247, 245, 240, 0.4); }
.footer-form input:focus { outline: none; }
.footer-form button {
  background: var(--gold);
  border: none;
  color: var(--forest-dark);
  width: 44px;
  cursor: pointer;
  font-size: 16px;
  transition: background var(--transition);
}
.footer-form button:hover { background: var(--gold-light); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 26px 32px;
  font-size: 12px;
  color: rgba(247, 245, 240, 0.4);
  flex-wrap: wrap;
}
.footer-legal { max-width: 480px; text-align: right; }

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--forest);
  color: var(--ivory);
  padding: 14px 28px;
  border-radius: var(--radius);
  font-size: 13.5px;
  letter-spacing: 0.03em;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition), transform var(--transition);
  z-index: 999;
  box-shadow: 0 12px 30px rgba(0,0,0,0.25);
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(24, 46, 36, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition);
}
.lightbox.open {
  opacity: 1;
  visibility: visible;
}
.lightbox img {
  max-width: min(900px, 100%);
  max-height: 88vh;
  object-fit: contain;
  border-radius: 4px;
  box-shadow: 0 30px 80px rgba(0,0,0,0.4);
}
.lightbox-close {
  position: absolute;
  top: 24px;
  right: 28px;
  background: none;
  border: none;
  color: var(--ivory);
  font-size: 34px;
  line-height: 1;
  cursor: pointer;
  padding: 6px 10px;
  transition: color var(--transition);
}
.lightbox-close:hover { color: var(--gold-light); }

/* ---------- WhatsApp floating button ---------- */
.whatsapp-float {
  position: fixed;
  bottom: 26px;
  right: 26px;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--white);
  box-shadow: 0 10px 30px rgba(0,0,0,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 500;
  transition: transform var(--transition), box-shadow var(--transition);
  overflow: hidden;
}
.whatsapp-float img {
  width: 78%;
  height: 78%;
  object-fit: contain;
}
.whatsapp-float:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 14px 36px rgba(0,0,0,0.3);
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 980px) {
  .product-grid,
  .founder-grid,
  .guide-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .founder-media, .guide-media { max-width: 420px; }
  .science-grid { grid-template-columns: 1fr; gap: 36px; }
  .ingredient-cards { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 860px) {
  .main-nav { display: none; }
  .nav-toggle { display: flex; }

  .main-nav.open {
    display: flex;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--ivory);
    flex-direction: column;
    padding: 20px 32px 30px;
    gap: 20px;
    border-bottom: 1px solid rgba(35,66,51,0.1);
  }

  .header-inner { justify-content: space-between; }
  .header-actions .btn-small { display: none; }
  .trust-inner { grid-template-columns: repeat(2, 1fr); }
  .pack-selector { grid-template-columns: 1fr; }
  .pack-option { flex-direction: row; justify-content: space-between; text-align: left; padding: 14px 18px; }
  .pack-badge { position: static; transform: none; margin-bottom: 4px; }
  .pack-title { margin-top: 0; }
}

@media (max-width: 640px) {
  .container { padding: 0 20px; }
  .hero { min-height: 100vh; }
  .hero-content { padding-bottom: 64px; }
  .product-section, .science-section, .ingredients-section,
  .founder-section, .faq-section, .guide-section { padding: 72px 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-brand { grid-column: auto; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .footer-legal { text-align: left; }
  .quantity-row { gap: 14px; }
  .qty-total { margin-left: 0; }
  .trust-inner { grid-template-columns: repeat(2, 1fr); gap: 28px 16px; }
  .product-thumbs { grid-template-columns: repeat(4, 1fr); gap: 8px; }
  .whatsapp-float { width: 50px; height: 50px; bottom: 18px; right: 18px; }
  .lightbox { padding: 20px; }
  .lightbox-close { top: 12px; right: 16px; font-size: 30px; }
}