:root {
  /* Core palette */
  --black:      #0A0A0B;
  --near-black: #111113;
  --dark:       #1A1A1E;
  --dark-mid:   #242428;
  --mid:        #2E2E34;
  --border:     rgba(255,255,255,.08);
  --border-mid: rgba(255,255,255,.14);

  /* Red accent system */
  --crimson:    #C0212A;
  --crimson-bright: #E02030;
  --crimson-glow:   rgba(192,33,42,.22);
  --crimson-light:  #FF4D57;
  --deep-red:   #8B0000;
  --red-muted:  #6B1A1D;

  /* Text */
  --text-primary:   #F0EDE8;
  --text-secondary: #A09A94;
  --text-muted:     #6B6560;

  /* Warm accent */
  --gold:       #C4954A;
  --gold-light: #E8C285;

  /* Functional */
  --success:    #2D7A4F;
  --shadow:     rgba(0,0,0,.4);
  --shadow-red: rgba(192,33,42,.3);

  /* Radii */
  --r6:  6px;
  --r8:  8px;
  --r12: 12px;
  --r16: 16px;
  --r20: 20px;

  --ease: cubic-bezier(.4,0,.2,1);
  --banner-h: 52px;
  --nav-h:    68px;
}

*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--black);
  color: var(--text-primary);
  font-family: 'DM Sans', sans-serif;
  font-size: 15px;
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

.skip-link {
  position: absolute; top: -999px; left: 16px;
  background: var(--crimson); color: white;
  padding: 10px 18px; border-radius: 0 0 var(--r8) var(--r8);
  font-weight: 700; font-size: 13px; text-decoration: none; z-index: 10000;
  transition: top .15s;
}
.skip-link:focus { top: 0; }

/* ── FLASH BANNER ── */
.flash-banner {
  background: var(--crimson);
  color: white;
  display: flex; align-items: center; justify-content: center; gap: 28px;
  padding: 0 20px; height: var(--banner-h);
  font-size: 12px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase;
  position: sticky; top: 0; z-index: 500;
}
.banner-text { color: #fff; }
.banner-sub { font-weight: 400; color: rgba(255,255,255,.75); font-size: 10px; letter-spacing: .14em; }
.countdown { display: flex; gap: 5px; align-items: center; }
.cd-block {
  background: rgba(0,0,0,.25); border: 1px solid rgba(255,255,255,.25);
  border-radius: 5px; padding: 3px 7px; text-align: center; min-width: 42px;
}
.cd-block .num { font-size: 17px; font-weight: 700; color: #fff; line-height: 1; font-variant-numeric: tabular-nums; }
.cd-block .lbl { font-size: 8px; color: rgba(255,255,255,.7); letter-spacing: .12em; text-transform: uppercase; }
.cd-sep { color: rgba(255,255,255,.6); font-size: 17px; font-weight: 700; margin-top: -4px; }

/* ── NAV ── */
nav {
  background: var(--near-black);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 40px; height: var(--nav-h);
  position: sticky; top: var(--banner-h); z-index: 499;
  box-shadow: 0 2px 24px rgba(0,0,0,.5);
}
.nav-links { display: flex; gap: 32px; list-style: none; }
.nav-links a {
  text-decoration: none; color: var(--text-secondary);
  font-size: 12px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase;
  padding: 4px 0; border-bottom: 2px solid transparent;
  transition: color .2s, border-color .2s;
}
.nav-links a:hover { color: var(--text-primary); border-bottom-color: var(--crimson); }

.nav-logo { display: flex; flex-direction: column; align-items: center; gap: 2px; text-decoration: none; }
.nav-logo .logo-main {
  font-family: 'Cormorant Garamond', serif;
  font-size: 26px; font-weight: 700; color: var(--text-primary);
  letter-spacing: .04em;
}
.nav-logo .logo-sub { font-size: 8px; letter-spacing: .32em; text-transform: uppercase; color: var(--crimson); }

.nav-icons { display: flex; gap: 18px; align-items: center; }
.nav-icons button {
  background: none; border: none; cursor: pointer;
  color: var(--text-secondary); font-size: 18px;
  border-radius: var(--r8); padding: 4px 6px;
  transition: color .2s, background .2s; position: relative;
}
.nav-icons button:hover { color: var(--text-primary); background: var(--dark-mid); }
.cart-badge {
  position: absolute; top: -4px; right: -4px;
  background: var(--crimson); color: white;
  border-radius: 50%; width: 18px; height: 18px;
  font-size: 10px; font-weight: 700; display: none;
  align-items: center; justify-content: center;
}
.cart-badge.show { display: flex; }

/* ── PRODUCT SECTION ── */
.product-section {
  display: grid; grid-template-columns: 1.2fr 1fr;
  max-width: 1440px; margin: 0 auto;
  padding: 48px 48px 0; gap: 56px; align-items: start;
}
.product-left { position: sticky; top: calc(var(--banner-h) + var(--nav-h) + 16px); align-self: start; }

.main-image-wrap {
  position: relative; border-radius: var(--r20); overflow: hidden;
  background: var(--dark); aspect-ratio: 1/1;
  box-shadow: 0 0 0 1px var(--border), 0 24px 80px rgba(0,0,0,.6), 0 0 80px var(--crimson-glow);
}
.main-image-wrap img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .65s cubic-bezier(.25,.46,.45,.94);
}
.main-image-wrap:hover img { transform: scale(1.04); }
.image-glow-overlay {
  position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(ellipse at 50% 100%, rgba(192,33,42,.15) 0%, transparent 65%);
}

.thumbnails {
  display: flex; gap: 10px; margin-top: 14px;
  overflow-x: auto; padding-bottom: 4px; scrollbar-width: none;
}
.thumbnails::-webkit-scrollbar { display: none; }
.thumb {
  width: 88px; height: 88px; border-radius: var(--r8); overflow: hidden;
  cursor: pointer; border: 2px solid var(--border); flex-shrink: 0;
  background: var(--dark); padding: 0;
  transition: border-color .2s, transform .2s;
}
.thumb:hover { transform: translateY(-3px); border-color: var(--border-mid); }
.thumb[aria-selected="true"] { border-color: var(--crimson); box-shadow: 0 0 12px var(--crimson-glow); }
.thumb img, .thumb video { width: 100%; height: 100%; object-fit: cover; display: block; }

.science-badge {
  display: flex; align-items: center; gap: 10px; margin-top: 16px;
  padding: 10px 16px; background: var(--dark); border: 1px solid var(--border);
  border-radius: var(--r8); font-size: 12px; color: var(--text-secondary);
  font-weight: 500; letter-spacing: .04em;
}
.sci-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--crimson); flex-shrink: 0;
  box-shadow: 0 0 8px var(--crimson-glow);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); box-shadow: 0 0 8px var(--crimson-glow); }
  50% { opacity: .7; transform: scale(.9); box-shadow: 0 0 16px var(--crimson-glow); }
}

/* ── PRODUCT RIGHT ── */
.product-right { padding-bottom: 80px; }

.product-eyebrow {
  font-size: 11px; font-weight: 600; letter-spacing: .28em; text-transform: uppercase;
  color: var(--crimson); margin-bottom: 10px;
}
.product-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 40px; font-weight: 700; color: var(--text-primary);
  letter-spacing: -.02em; line-height: 1.1; margin-bottom: 12px;
}

.stars-row { display: flex; align-items: center; gap: 6px; margin-bottom: 12px; }
.stars { color: var(--gold); font-size: 15px; letter-spacing: 2px; }
.review-count {
  font-size: 13px; color: var(--text-secondary); text-decoration: underline;
  cursor: pointer; background: none; border: none;
  font-family: 'DM Sans', sans-serif; padding: 0;
  transition: color .2s;
}
.review-count:hover { color: var(--text-primary); }

.price-row {
  display: flex; align-items: baseline; gap: 10px;
  margin-bottom: 8px; flex-wrap: wrap;
}
.price-now {
  font-family: 'Cormorant Garamond', serif;
  font-size: 30px; font-weight: 700; color: var(--text-primary);
}
.price-was { font-size: 14px; color: var(--text-muted); text-decoration: line-through; }
.save-badge {
  background: var(--crimson); color: white;
  font-size: 10px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  padding: 3px 10px; border-radius: 20px;
}

.perks { display: flex; flex-direction: column; gap: 6px; margin: 14px 0 20px; }
.perk {
  font-size: 13px; color: var(--text-secondary); display: flex;
  align-items: center; gap: 9px; padding: 2px 0;
}
.perk .icon { font-size: 14px; flex-shrink: 0; }

/* ── BUNDLE ── */
.bundle-label {
  display: flex; align-items: center; gap: 14px; margin-bottom: 16px;
}
.bundle-label::before, .bundle-label::after {
  content: ''; flex: 1; height: 1px; background: var(--border);
}
.bundle-label span {
  font-size: 10px; font-weight: 700; letter-spacing: .28em; text-transform: uppercase;
  color: var(--text-muted); white-space: nowrap;
}

.bundle-cards { display: flex; flex-direction: column; gap: 12px; margin-bottom: 24px; }

.bundle-card {
  border: 2px solid var(--border);
  border-radius: var(--r12); overflow: hidden; cursor: pointer;
  transition: border-color .25s, box-shadow .25s, transform .2s;
  background: var(--dark); position: relative;
}
.bundle-card:hover {
  border-color: var(--border-mid);
  box-shadow: 0 4px 24px rgba(0,0,0,.4);
  transform: translateY(-1px);
}
.bundle-card.selected {
  border-color: var(--crimson);
  box-shadow: 0 0 0 1px var(--crimson), 0 4px 32px var(--crimson-glow);
}
.bundle-card.recommended { border-color: var(--red-muted); }
.bundle-card.recommended.selected {
  border-color: var(--crimson);
  box-shadow: 0 0 0 1px var(--crimson), 0 4px 40px var(--crimson-glow);
}

.recommended-tag {
  position: absolute; top: -1px; right: 18px;
  background: var(--crimson); color: white;
  font-size: 9px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  padding: 5px 14px 6px; border-radius: 0 0 8px 8px;
}

.bundle-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 20px 16px; gap: 12px;
}
.bundle-left { display: flex; align-items: center; gap: 14px; flex: 1; }

.radio-circle {
  width: 20px; height: 20px; border-radius: 50%;
  border: 2px solid var(--border-mid);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; transition: border-color .2s;
}
.bundle-card.selected .radio-circle { border-color: var(--crimson); }
.radio-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--crimson); opacity: 0;
  transform: scale(.4); transition: opacity .2s, transform .2s;
}
.bundle-card.selected .radio-dot { opacity: 1; transform: scale(1); }

.bundle-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 18px; font-weight: 700; color: var(--text-primary);
}
.bundle-subtitle { font-size: 12px; color: var(--text-muted); margin-top: 1px; }

.bundle-save-badge {
  background: var(--crimson); color: white;
  font-size: 10px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  padding: 3px 10px; border-radius: 20px; white-space: nowrap;
}

.bundle-right { text-align: right; flex-shrink: 0; }
.bundle-price {
  font-family: 'Cormorant Garamond', serif;
  font-size: 22px; font-weight: 700; color: var(--text-primary);
}
.bundle-was { font-size: 12px; color: var(--text-muted); text-decoration: line-through; margin-top: 2px; }

/* Addons */
.bundle-addons {
  border-top: 1px solid var(--border);
  padding: 14px 20px 16px;
  display: flex; flex-direction: column; gap: 10px;
}
.addon-row {
  display: flex; align-items: center; justify-content: space-between;
  gap: 8px; font-size: 13px;
}
.addon-left { display: flex; align-items: center; gap: 8px; }
.addon-check {
  width: 20px; height: 20px; border-radius: 5px;
  border: 2px solid var(--border-mid);
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 700; color: white; cursor: pointer;
  flex-shrink: 0; transition: background .2s, border-color .2s;
  user-select: none;
}
.addon-check.checked { background: var(--crimson); border-color: var(--crimson); }
.addon-icon { font-size: 14px; flex-shrink: 0; }
.addon-name { color: var(--text-secondary); }
.addon-price { color: var(--text-muted); font-size: 12px; white-space: nowrap; }

/* ── CTA ── */
.price-total-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 0; border-top: 1px solid var(--border); margin-bottom: 16px;
}
.total-label { font-size: 12px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--text-secondary); }
.total-price {
  font-family: 'Cormorant Garamond', serif;
  font-size: 28px; font-weight: 700; color: var(--text-primary);
}

.add-to-cart-btn {
  width: 100%; padding: 18px;
  background: var(--crimson);
  color: white; border: none; border-radius: var(--r12);
  font-family: 'DM Sans', sans-serif; font-size: 14px;
  font-weight: 700; letter-spacing: .18em; text-transform: uppercase;
  cursor: pointer; transition: background .2s, transform .15s, box-shadow .2s;
  box-shadow: 0 4px 24px var(--crimson-glow);
  margin-bottom: 10px;
}
.add-to-cart-btn:hover {
  background: var(--crimson-bright);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px var(--shadow-red);
}

.buy-now-row { margin-bottom: 20px; }
.buy-now-btn {
  width: 100%; padding: 14px;
  background: transparent; color: var(--text-primary);
  border: 1.5px solid var(--border-mid); border-radius: var(--r12);
  font-family: 'DM Sans', sans-serif; font-size: 13px;
  font-weight: 600; letter-spacing: .14em; text-transform: uppercase;
  cursor: pointer; transition: background .2s, border-color .2s;
}
.buy-now-btn:hover { background: var(--dark-mid); border-color: var(--text-muted); }

.trust-strip {
  display: flex; gap: 0; margin-bottom: 16px;
  border: 1px solid var(--border); border-radius: var(--r8); overflow: hidden;
}
.trust-item {
  flex: 1; text-align: center; font-size: 11px; font-weight: 600;
  color: var(--text-muted); letter-spacing: .06em;
  padding: 10px 6px; border-right: 1px solid var(--border);
}
.trust-item:last-child { border-right: none; }

.payment-icons {
  display: flex; gap: 8px; flex-wrap: wrap; align-items: center;
}

/* ── BELOW FOLD ── */
.below-fold { max-width: 1200px; margin: 0 auto; padding: 80px 48px; }

.section-header { text-align: center; margin-bottom: 48px; }
.section-eyebrow {
  font-size: 11px; font-weight: 600; letter-spacing: .28em; text-transform: uppercase;
  color: var(--crimson); margin-bottom: 12px;
}
.section-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 40px; font-weight: 700; color: var(--text-primary);
  letter-spacing: -.02em; line-height: 1.15; margin-bottom: 14px;
}
.section-sub { font-size: 15px; color: var(--text-secondary); max-width: 560px; margin: 0 auto; }

/* How it works */
.how-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
}
.how-card {
  background: var(--dark); border: 1px solid var(--border);
  border-radius: var(--r16); padding: 28px 24px;
  transition: border-color .25s, transform .25s, box-shadow .25s;
}
.how-card:hover {
  border-color: var(--red-muted); transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0,0,0,.4);
}
.how-icon { font-size: 32px; margin-bottom: 14px; }
.how-card h3 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 20px; font-weight: 700; color: var(--text-primary); margin-bottom: 8px;
}
.how-card p { font-size: 13px; color: var(--text-secondary); line-height: 1.6; }

/* ── TESTIMONIALS ── */
.testimonials-section { border-top: 1px solid var(--border); }
.testimonials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }

.testimonial-card {
  background: var(--dark); border: 1px solid var(--border);
  border-radius: var(--r16); padding: 28px 24px;
}
.featured-card {
  border-color: var(--red-muted);
  box-shadow: 0 0 40px rgba(192,33,42,.12);
}
.tcard-stars { color: var(--gold); font-size: 14px; letter-spacing: 2px; margin-bottom: 12px; }
.tcard-text {
  font-size: 14px; color: var(--text-secondary); line-height: 1.65;
  margin-bottom: 20px; font-style: italic;
}
.tcard-author { display: flex; align-items: center; gap: 12px; }
.tcard-avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--crimson); color: white;
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 700; flex-shrink: 0;
}
.tcard-name { font-size: 14px; font-weight: 600; color: var(--text-primary); }
.tcard-meta { font-size: 11px; color: var(--text-muted); }

/* ── TRUST BAR ── */
.trust-bar {
  background: var(--dark); border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  display: flex; justify-content: center; gap: 0;
}
.trust-bar-item {
  display: flex; align-items: center; gap: 14px;
  padding: 28px 40px; flex: 1; justify-content: center;
  border-right: 1px solid var(--border);
}
.trust-bar-item:last-child { border-right: none; }
.tb-icon { font-size: 24px; flex-shrink: 0; }
.trust-bar-item div { display: flex; flex-direction: column; }
.trust-bar-item strong { font-size: 14px; font-weight: 600; color: var(--text-primary); }
.trust-bar-item span { font-size: 12px; color: var(--text-muted); }

/* ── FOOTER ── */
footer { background: var(--near-black); border-top: 1px solid var(--border); }
.footer-inner {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  max-width: 1200px; margin: 0 auto; gap: 48px;
  padding: 56px 48px 40px;
}
.footer-logo {
  font-family: 'Cormorant Garamond', serif;
  font-size: 28px; font-weight: 700; color: var(--text-primary);
  margin-bottom: 12px;
}
.footer-tagline { font-size: 13px; color: var(--text-secondary); line-height: 1.6; max-width: 260px; }
.footer-heading {
  font-size: 10px; font-weight: 700; letter-spacing: .22em; text-transform: uppercase;
  color: var(--text-muted); margin-bottom: 16px;
}
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col ul a {
  text-decoration: none; color: var(--text-secondary); font-size: 13px;
  transition: color .2s;
}
.footer-col ul a:hover { color: var(--text-primary); }
.footer-bottom {
  max-width: 1200px; margin: 0 auto;
  border-top: 1px solid var(--border);
  padding: 20px 48px;
  display: flex; align-items: flex-start; justify-content: space-between; gap: 24px;
  font-size: 11px; color: var(--text-muted); flex-wrap: wrap;
}
.footer-disclaimer { max-width: 600px; line-height: 1.5; font-style: italic; }

/* ── CART DRAWER ── */
.cart-drawer {
  position: fixed; inset: 0; z-index: 700;
  pointer-events: none; opacity: 0; transition: opacity .3s;
}
.cart-drawer.open { pointer-events: all; opacity: 1; }
.drawer-backdrop { position: absolute; inset: 0; background: rgba(0,0,0,.65); }
.drawer-panel {
  position: absolute; right: 0; top: 0; bottom: 0; width: 420px;
  background: var(--near-black); border-left: 1px solid var(--border);
  display: flex; flex-direction: column;
  transform: translateX(100%); transition: transform .35s var(--ease);
  box-shadow: -8px 0 48px rgba(0,0,0,.5);
}
.cart-drawer.open .drawer-panel { transform: none; }
.drawer-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 28px; border-bottom: 1px solid var(--border); flex-shrink: 0;
}
.drawer-header h2 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 22px; font-weight: 700; color: var(--text-primary);
}
.drawer-close {
  background: none; border: none; cursor: pointer;
  font-size: 18px; color: var(--text-secondary);
  border-radius: var(--r8); padding: 6px 10px;
  transition: color .2s, background .2s;
}
.drawer-close:hover { color: var(--text-primary); background: var(--dark-mid); }
.drawer-items { flex: 1; overflow-y: auto; padding: 20px 28px; }
.drawer-items::-webkit-scrollbar { width: 4px; }
.drawer-items::-webkit-scrollbar-thumb { background: var(--border-mid); border-radius: 2px; }

.empty-cart { text-align: center; padding: 60px 20px; }
.empty-icon { font-size: 48px; margin-bottom: 16px; opacity: .4; }
.empty-cart p { color: var(--text-secondary); font-size: 14px; margin-bottom: 20px; }
.empty-cart button {
  padding: 12px 28px; background: var(--crimson); color: white;
  border: none; border-radius: var(--r8); font-family: 'DM Sans', sans-serif;
  font-size: 13px; font-weight: 600; cursor: pointer; transition: background .2s;
}
.empty-cart button:hover { background: var(--crimson-bright); }

.cart-item {
  background: var(--dark); border: 1px solid var(--border);
  border-radius: var(--r12); padding: 16px; margin-bottom: 12px;
}
.cart-item-top { display: flex; gap: 12px; }
.cart-item-img { width: 72px; height: 72px; border-radius: var(--r8); object-fit: cover; background: var(--dark-mid); flex-shrink: 0; }
.cart-item-info { flex: 1; }
.cart-item-name { font-size: 14px; font-weight: 600; color: var(--text-primary); margin-bottom: 4px; }
.cart-item-detail { font-size: 12px; color: var(--text-muted); }
.cart-item-price { font-family: 'Cormorant Garamond', serif; font-size: 18px; font-weight: 700; color: var(--text-primary); }
.cart-item-bottom { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-top: 12px; }
.qty-stepper { display: flex; align-items: center; border: 1px solid var(--border-mid); border-radius: var(--r8); overflow: hidden; }
.qty-btn {
  background: none; border: none; cursor: pointer;
  width: 32px; height: 32px; font-size: 18px; color: var(--text-secondary);
  display: flex; align-items: center; justify-content: center;
  transition: background .15s, color .15s;
}
.qty-btn:hover { background: var(--dark-mid); color: var(--text-primary); }
.qty-num { min-width: 28px; text-align: center; font-size: 14px; font-weight: 700; color: var(--text-primary); }
.cart-item-remove { font-size: 12px; color: var(--text-muted); background: none; border: none; cursor: pointer; text-decoration: underline; transition: color .2s; }
.cart-item-remove:hover { color: var(--crimson); }

.drawer-footer { padding: 20px 28px; border-top: 1px solid var(--border); flex-shrink: 0; }
.drawer-total { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; font-size: 14px; color: var(--text-secondary); }
.drawer-total span:last-child { font-family: 'Cormorant Garamond', serif; font-size: 22px; font-weight: 700; color: var(--text-primary); }

.checkout-btn {
  width: 100%; padding: 18px; background: var(--crimson); color: white;
  border: none; border-radius: var(--r12);
  font-family: 'DM Sans', sans-serif; font-size: 14px; font-weight: 700;
  letter-spacing: .18em; text-transform: uppercase; cursor: pointer;
  transition: background .2s, transform .15s, box-shadow .2s;
  box-shadow: 0 4px 20px var(--crimson-glow); margin-bottom: 10px;
}
.checkout-btn:hover { background: var(--crimson-bright); transform: translateY(-2px); box-shadow: 0 8px 32px var(--shadow-red); }
.continue-btn {
  width: 100%; padding: 12px; background: none; color: var(--text-secondary);
  border: 1px solid var(--border); border-radius: var(--r8);
  font-family: 'DM Sans', sans-serif; font-size: 13px; font-weight: 600;
  cursor: pointer; transition: background .2s, color .2s;
}
.continue-btn:hover { background: var(--dark-mid); color: var(--text-primary); }

/* ── CHECKOUT MODAL ── */
.checkout-modal {
  position: fixed; inset: 0; z-index: 800;
  display: flex; align-items: center; justify-content: center; padding: 20px;
  opacity: 0; pointer-events: none; transition: opacity .3s;
}
.checkout-modal.open { opacity: 1; pointer-events: all; }
.checkout-backdrop { position: absolute; inset: 0; background: rgba(0,0,0,.75); }
.checkout-box {
  position: relative; background: var(--near-black);
  border: 1px solid var(--border); border-radius: var(--r20);
  width: 100%; max-width: 620px; max-height: 90vh; overflow-y: auto;
  box-shadow: 0 24px 80px rgba(0,0,0,.7), 0 0 0 1px var(--border);
  animation: slideUp .4s cubic-bezier(.22,1,.36,1) both;
}
.checkout-box::-webkit-scrollbar { width: 4px; }
.checkout-box::-webkit-scrollbar-thumb { background: var(--border-mid); }
@keyframes slideUp { from { transform: translateY(40px); opacity: 0; } to { transform: none; opacity: 1; } }

.checkout-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 28px 32px 20px; border-bottom: 1px solid var(--border);
}
.checkout-header h2 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 24px; font-weight: 700; color: var(--text-primary);
}
.modal-close {
  background: none; border: none; cursor: pointer; font-size: 20px;
  color: var(--text-secondary); border-radius: var(--r8); padding: 6px 10px;
  transition: background .2s, color .2s;
}
.modal-close:hover { background: var(--dark-mid); color: var(--text-primary); }

.checkout-steps { display: flex; border-bottom: 1px solid var(--border); }
.step-tab {
  flex: 1; padding: 14px; text-align: center;
  font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
  color: var(--text-muted); border-bottom: 3px solid transparent;
  transition: color .2s, border-color .2s;
}
.step-tab.active { color: var(--text-primary); border-bottom-color: var(--crimson); }
.step-tab.done { color: var(--success); }

.checkout-panel { display: none; padding: 28px 32px; }
.checkout-panel.active { display: block; }

.form-row { display: grid; gap: 14px; margin-bottom: 14px; }
.form-row.c2 { grid-template-columns: 1fr 1fr; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label {
  font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
  color: var(--text-secondary);
}
.form-group input, .form-group select {
  padding: 12px 14px; border: 1.5px solid var(--border-mid);
  border-radius: var(--r8); font-family: 'DM Sans', sans-serif;
  font-size: 14px; color: var(--text-primary);
  background: var(--dark); outline: none;
  transition: border-color .2s, box-shadow .2s; width: 100%;
}
.form-group input::placeholder { color: var(--text-muted); }
.form-group input:focus, .form-group select:focus {
  border-color: var(--crimson);
  box-shadow: 0 0 0 3px var(--crimson-glow);
}
.form-group select { color: var(--text-primary); }
.form-group select option { background: var(--dark); }

.field-err { font-size: 11px; color: var(--crimson-light); display: none; margin-top: 2px; }
.has-err .field-err { display: block; }
.has-err input, .has-err select { border-color: var(--crimson); }

.sec-title {
  font-size: 10px; font-weight: 700; letter-spacing: .24em; text-transform: uppercase;
  color: var(--text-muted); margin-bottom: 16px; padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.co-summary {
  background: var(--dark); border-radius: var(--r12);
  border: 1px solid var(--border); padding: 20px; margin-bottom: 20px;
}
.cos-row { display: flex; justify-content: space-between; font-size: 14px; color: var(--text-secondary); margin-bottom: 8px; gap: 12px; }
.cos-row .cn { flex: 1; }
.cos-row .cp { font-weight: 700; color: var(--text-primary); flex-shrink: 0; }
.cos-div { height: 1px; background: var(--border); margin: 12px 0; }
.cos-total { display: flex; justify-content: space-between; font-family: 'Cormorant Garamond', serif; font-size: 22px; font-weight: 700; color: var(--text-primary); }

.checkout-nav { display: flex; gap: 12px; margin-top: 24px; }
.btn-next {
  flex: 1; padding: 16px; background: var(--crimson); color: white;
  border: none; border-radius: var(--r12); font-family: 'DM Sans', sans-serif;
  font-size: 13px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase;
  cursor: pointer; transition: background .2s, transform .15s;
  box-shadow: 0 4px 16px var(--crimson-glow);
}
.btn-next:hover { background: var(--crimson-bright); transform: translateY(-1px); }
.btn-next:disabled { opacity: .5; cursor: not-allowed; transform: none; }
.btn-back {
  padding: 16px 24px; background: none; border: 1.5px solid var(--border-mid);
  border-radius: var(--r12); font-family: 'DM Sans', sans-serif;
  font-size: 13px; font-weight: 700; color: var(--text-secondary);
  cursor: pointer; transition: background .2s, color .2s;
}
.btn-back:hover { background: var(--dark-mid); color: var(--text-primary); }

.checkout-success { padding: 48px 32px; text-align: center; }
.success-icon {
  width: 80px; height: 80px; background: var(--crimson);
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: 36px; margin: 0 auto 24px; box-shadow: 0 0 48px var(--crimson-glow);
}
.checkout-success h3 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 30px; font-weight: 700; color: var(--text-primary); margin-bottom: 12px;
}
.checkout-success p { color: var(--text-secondary); font-size: 15px; line-height: 1.7; margin-bottom: 24px; }
.success-btn {
  padding: 14px 36px; background: var(--crimson); color: white;
  border: none; border-radius: var(--r8);
  font-family: 'DM Sans', sans-serif; font-size: 13px; font-weight: 700;
  letter-spacing: .16em; text-transform: uppercase; cursor: pointer;
  transition: background .2s;
}
.success-btn:hover { background: var(--crimson-bright); }

.sec-note {
  display: flex; align-items: center; gap: 8px;
  font-size: 12px; color: var(--text-muted); margin-top: 12px; justify-content: center;
}

/* ── RESPONSIVE ── */
@media (max-width: 1100px) {
  .how-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-bar { flex-wrap: wrap; }
  .trust-bar-item { flex: 1 1 50%; border-bottom: 1px solid var(--border); }
}
@media (max-width: 1024px) {
  .product-section { gap: 40px; }
  .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 36px; }
}
@media (max-width: 860px) {
  :root { --nav-h: 56px; }
  .product-section { grid-template-columns: 1fr; padding: 24px 20px 0; }
  .product-left { position: relative; top: 0; }
  .product-title { font-size: 32px; }
  .testimonials-grid { grid-template-columns: 1fr; }
  nav { padding: 0 20px; }
  .nav-links { gap: 20px; }
  .nav-links a { font-size: 11px; }
  .below-fold { padding: 60px 20px; }
  .section-title { font-size: 32px; }
  .footer-inner { padding: 40px 20px; grid-template-columns: 1fr 1fr; }
  .footer-bottom { padding: 16px 20px; flex-direction: column; gap: 10px; }
  .form-row.c2 { grid-template-columns: 1fr; }
  .checkout-panel { padding: 20px; }
  .checkout-header { padding: 20px; }
  .drawer-panel { width: 100%; }
}
@media (max-width: 640px) {
  .how-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .trust-bar-item { flex: 1 1 100%; }
}
@media (max-width: 540px) {
  .flash-banner { gap: 10px; flex-wrap: wrap; height: auto; padding: 10px 14px; }
  :root { --banner-h: 72px; }
  .nav-links { display: none; }
}

/* ═══════════════════════════════════════════════════════════
   SCIENCE SECTION — UPGRADED
═══════════════════════════════════════════════════════════ */

.science-section {
  padding: 100px 40px;
  max-width: 1160px;
  margin: 0 auto;
}

.sci-title-main {
  font-style: normal;
}
.sci-title-em {
  font-style: italic;
  color: var(--crimson-light);
}

.sci-sub-heading {
  font-family: 'Cormorant Garamond', serif;
  font-size: 28px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.25;
  margin-bottom: 8px;
}
.sci-sub-copy {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 28px;
}

/* ── WAVELENGTH PANELS ── */
.sci-wave-panels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  margin-bottom: 64px;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.07);
}
.sci-wave-panel {
  padding: 40px 36px;
  position: relative;
}
.swp-red {
  background: linear-gradient(160deg, #1e0604 0%, #130403 100%);
  border-right: 1px solid rgba(255,255,255,.06);
}
.swp-nir {
  background: linear-gradient(160deg, #0e0818 0%, #080510 100%);
}
.swp-nm {
  font-family: 'Cormorant Garamond', serif;
  font-size: 72px;
  font-weight: 700;
  letter-spacing: -3px;
  line-height: 1;
  margin-bottom: 4px;
}
.swp-red  .swp-nm { color: #ff4444; }
.swp-nir .swp-nm { color: #9966ff; }
.swp-unit {
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: rgba(255,255,255,.45);
  margin-bottom: 22px;
}
.swp-depth-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 14px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
  margin-bottom: 22px;
}
.swp-red  .swp-depth-pill { background: rgba(255,68,68,.12); color: #ff9999; border: 1px solid rgba(255,68,68,.25); }
.swp-nir .swp-depth-pill { background: rgba(153,102,255,.12); color: #ccbbff; border: 1px solid rgba(153,102,255,.25); }
.swp-depth-dot {
  width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0;
}
.swp-dot-red { background: #ff4444; }
.swp-dot-nir { background: #9966ff; }
.swp-bar-wrap { margin-bottom: 22px; }
.swp-bar-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: rgba(255,255,255,.3);
  margin-bottom: 8px;
}
.swp-bar-track {
  height: 4px;
  background: rgba(255,255,255,.08);
  border-radius: 2px;
  overflow: hidden;
}
.swp-bar-fill {
  height: 100%;
  border-radius: 2px;
  transition: width 1s var(--ease);
}
.swp-fill-red { background: linear-gradient(90deg, #aa1100, #ff5533); }
.swp-fill-nir { background: linear-gradient(90deg, #4422bb, #aa66ff); }
.swp-desc {
  font-size: 14px;
  line-height: 1.78;
  color: rgba(255,255,255,.55);
  margin-bottom: 22px;
}
.swp-effects {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 9px;
}
.swp-effects li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: rgba(255,255,255,.6);
}
.swp-eff-dot {
  width: 5px; height: 5px; border-radius: 50%; flex-shrink: 0;
}

/* ── SCALP DEPTH DIAGRAM ── */
.sci-depth-wrap {
  margin-bottom: 64px;
  text-align: center;
}
.sci-depth-svg {
  display: block;
  margin: 0 auto;
  max-width: 900px;
}

/* ── STATS STRIP ── */
.sci-stats-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 72px;
  border: 1px solid var(--border);
}
.sci-stat-cell {
  padding: 28px 20px;
  background: var(--dark);
  text-align: center;
  border-right: 1px solid var(--border);
}
.sci-stat-cell:last-child { border-right: none; }
.sci-stat-num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 38px;
  font-weight: 700;
  color: var(--crimson-bright);
  line-height: 1;
  margin-bottom: 8px;
}
.sci-stat-plus {
  font-size: 24px;
  color: var(--crimson);
}
.sci-stat-label {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ── GROWTH CYCLE V2 ── */
.sci-cycle-v2 {
  margin-bottom: 72px;
}
.sci-cycle-v2-header {
  text-align: center;
  margin-bottom: 32px;
}
.sci-cycle-tabs {
  display: flex;
  gap: 0;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border);
  margin-bottom: 32px;
}
.sci-cycle-tab {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px 12px;
  cursor: pointer;
  border: none;
  border-right: 1px solid var(--border);
  background: var(--dark);
  transition: background .2s var(--ease);
  font-family: 'DM Sans', sans-serif;
}
.sci-cycle-tab:last-child { border-right: none; }
.sci-cycle-tab:hover { background: var(--dark-mid); }
.sci-cycle-tab.active { background: var(--dark-mid); }
.sci-tab-phase {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 3px;
  transition: color .2s;
}
.sci-cycle-tab.active .sci-tab-phase { color: var(--crimson-light); }
.sci-tab-name {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .1em;
}
.sci-phase-panel {
  display: none;
}
.sci-phase-panel.active {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 48px;
  align-items: start;
  background: var(--dark);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px 44px;
}
.sci-phase-badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 16px;
}
.badge-anagen  { background: rgba(74,222,128,.1);  color: #4ade80;  border: 1px solid rgba(74,222,128,.25); }
.badge-catagen { background: rgba(196,149,74,.1);  color: #C4954A; border: 1px solid rgba(196,149,74,.25); }
.badge-telogen { background: rgba(192,33,42,.1);   color: var(--crimson-light); border: 1px solid rgba(192,33,42,.25); }
.sci-phase-heading {
  font-family: 'Cormorant Garamond', serif;
  font-size: 22px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
  line-height: 1.25;
}
.sci-phase-text p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 0;
}
.sci-phase-text em { color: var(--text-primary); font-style: italic; }
.sci-lumi-callout {
  margin-top: 20px;
  background: var(--dark-mid);
  border: 1px solid var(--border);
  border-left: 3px solid var(--crimson);
  border-radius: 0 8px 8px 0;
  padding: 16px 20px;
}
.sci-lumi-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--crimson);
  font-weight: 600;
  margin-bottom: 8px;
}
.sci-lumi-text {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.75;
}
.sci-phase-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ── MECHANISM TIMELINE ── */
.sci-timeline-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.sci-timeline-intro p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-top: 12px;
}
.sci-timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.sci-tl-step {
  display: flex;
  gap: 16px;
  padding-bottom: 24px;
  position: relative;
}
.sci-tl-step:last-child { padding-bottom: 0; }
.sci-tl-left {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
}
.sci-tl-dot {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--dark-mid);
  border: 1.5px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  transition: border-color .3s var(--ease), background .3s var(--ease), color .3s var(--ease);
  flex-shrink: 0;
}
.sci-tl-step.active .sci-tl-dot {
  border-color: var(--crimson);
  background: rgba(192,33,42,.15);
  color: var(--crimson-light);
}
.sci-tl-line {
  width: 1px;
  flex: 1;
  background: var(--border);
  margin-top: 4px;
}
.sci-tl-step:last-child .sci-tl-line { display: none; }
.sci-tl-body { padding-top: 5px; }
.sci-tl-time {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--text-muted);
  margin-bottom: 4px;
  transition: color .3s;
}
.sci-tl-step.active .sci-tl-time { color: var(--crimson); }
.sci-tl-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}
.sci-tl-detail {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ── SCIENCE PHOTO PLACEHOLDERS ── */
.sci-photo-placeholder {
  border: 2px dashed rgba(255,255,255,.15);
  border-radius: var(--r16);
  background: var(--dark);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  margin-bottom: 64px;
  transition: border-color .2s, background .2s;
  cursor: pointer;
}
.sci-photo-placeholder:hover {
  border-color: rgba(255,255,255,.28);
  background: var(--dark-mid);
}
.sci-photo-hero { height: 280px; width: 100%; }
.sci-photo-bottom { height: 220px; width: 100%; margin-top: 64px; margin-bottom: 0; }
.sci-photo-inner {
  display: flex; flex-direction: column; align-items: center; gap: 10px;
}
.sci-photo-icon { font-size: 36px; opacity: .5; }
.sci-photo-label {
  font-size: 14px; font-weight: 600; color: var(--text-secondary); letter-spacing: .04em;
}
.sci-photo-hint {
  font-size: 12px; color: var(--text-muted); max-width: 340px; line-height: 1.5;
}

/* ── PHOTO ROW (cap-in-use + context) ── */
.sci-photo-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px;
  align-items: center; margin-bottom: 64px;
}
.sci-photo-side { height: 320px; margin-bottom: 0; }
.sci-photo-context { padding: 8px 0; }
.sci-photo-context-eyebrow {
  font-size: 11px; font-weight: 700; letter-spacing: .22em; text-transform: uppercase;
  color: var(--crimson); margin-bottom: 12px;
}
.sci-photo-context-heading {
  font-family: 'Cormorant Garamond', serif;
  font-size: 28px; font-weight: 600; color: var(--text-primary);
  line-height: 1.2; margin-bottom: 16px;
}
.sci-photo-context-body {
  font-size: 14px; color: var(--text-secondary); line-height: 1.85;
}

/* ── PLAIN LANGUAGE CALLOUT ── */
.swp-plain {
  margin: 14px 0 16px;
  padding: 12px 16px;
  background: rgba(255,255,255,.04);
  border-radius: var(--r8);
  border: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  font-style: italic;
}

/* ── RESPONSIVE ── */
@media (max-width: 960px) {
  .sci-photo-row { grid-template-columns: 1fr; }
  .sci-photo-side { height: 220px; }
  .sci-photo-hero { height: 180px; }
  .sci-photo-bottom { height: 160px; }
}

/* ── EXISTING RESPONSIVE ── */
  .swp-red { border-right: none; border-bottom: 1px solid rgba(255,255,255,.06); }
  .sci-stats-strip { grid-template-columns: 1fr 1fr; }
  .sci-stat-cell:nth-child(2) { border-right: none; }
  .sci-phase-panel.active { grid-template-columns: 1fr; }
  .sci-phase-visual { display: none; }
  .sci-timeline-wrap { grid-template-columns: 1fr; }
  .science-section { padding: 60px 24px; }
}
@media (max-width: 540px) {
  .sci-stats-strip { grid-template-columns: 1fr 1fr; }
  .sci-cycle-tabs { flex-direction: column; }
  .sci-cycle-tab { border-right: none; border-bottom: 1px solid var(--border); }
  .sci-cycle-tab:last-child { border-bottom: none; }
  .sci-phase-panel.active { padding: 24px 20px; }
  .swp-nm { font-size: 56px; }
}