/* ==========================================================================
   THREESKINS — CELLULAR BARRIER ARCHITECTURE
   The Threeskins Co.
   Color Palette: Deep Forest Obsidian (#111B14) — Header & Dark Sections
                  Refined Luxury Cream (#FAF8F5 / #FFFFFF) — Light Sections
                  Champagne Gold (#C9A256 / #E2B95C) — Metallic Accents
   Typography:    Corporate Luxury Titles (Playfair Display)
                  Prestigious Roman Display (Cinzel)
                  Handwritten Calligraphy (Alex Brush)
                  Clean Technical Body (Plus Jakarta Sans)
   ========================================================================== */

:root {
  --color-forest: #1E2B25;
  --color-forest-dark: #111B14; /* Exact header background & all dark sections */
  --color-forest-light: #2A3C34;
  --color-forest-surface: rgba(30, 43, 37, 0.04);
  --color-forest-surface-hover: rgba(30, 43, 37, 0.08);

  --color-gold: #C9A256;
  --color-gold-bright: #E2B95C;
  --color-gold-muted: rgba(201, 162, 86, 0.35);
  --color-gold-subtle: rgba(201, 162, 86, 0.12);
  --color-gold-glow: rgba(226, 185, 92, 0.25);

  /* User requirement 2: Replace beige/ivory with clean luxury cream */
  --color-cream: #FAF8F5;
  --color-cream-card: #FFFFFF;
  --color-cream-subtle: #F3EFE8;
  --color-ivory: #FAF8F5; /* Backwards-compatible alias to cream */
  --color-ivory-warm: #FAF8F5;
  --color-sand: #EFECE6;
  --color-sand-dark: #DDD7CD;

  --color-text-dark: #111B14;
  --color-text-muted: #3D4A41;
  --color-text-light: #FAF8F5;
  --color-text-light-muted: rgba(250, 248, 245, 0.88);

  --color-border: rgba(17, 27, 20, 0.1);
  --color-border-light: rgba(201, 162, 86, 0.25);
  --color-border-dark: rgba(250, 248, 245, 0.18);
  --editorial-hairline: rgba(17, 27, 20, 0.12);

  /* User requirement 4: Corporate luxury title fonts */
  --font-title: 'Playfair Display', Georgia, serif;
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-display: 'Cinzel', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-signature: 'Alex Brush', cursive;

  --header-height: 76px;
  --announcement-height: 38px;
  --container-max: 1380px;
  --container-narrow: 940px;
  --transition-smooth: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-subtle: 0 4px 18px rgba(0, 0, 0, 0.04);
  --shadow-elevated: 0 16px 36px rgba(17, 27, 20, 0.07);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-color: var(--color-cream);
  color: var(--color-text-dark);
}

body {
  font-family: var(--font-sans);
  font-size: 1rem; /* 16px minimum body text */
  font-weight: 400;
  line-height: 1.65;
  background-color: var(--color-cream);
  color: var(--color-text-dark);
  overflow-x: hidden;
  position: relative;
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--color-cream); }
::-webkit-scrollbar-thumb { background: var(--color-sand-dark); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-gold); }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-title);
  font-weight: 600;
  letter-spacing: -0.015em;
  color: inherit;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(1.25rem, 3.5vw, 3rem);
  padding-right: clamp(1.25rem, 3.5vw, 3rem);
}

/* --- Announcement Bar --- */
.announcement-bar {
  background-color: var(--color-forest-dark);
  color: var(--color-cream);
  font-family: var(--font-display);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  min-height: var(--announcement-height);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid rgba(201, 162, 86, 0.2);
  z-index: 100;
  padding: 0.45rem 1rem;
}

.announcement-content {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
  justify-content: center;
  text-align: center;
}

.announcement-badge {
  color: var(--color-gold-bright);
  font-weight: 700;
  letter-spacing: 0.14em;
}

.announcement-sep {
  color: var(--color-gold-muted);
}

.announcement-link {
  color: var(--color-gold-bright);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 600;
  transition: var(--transition-fast);
}

.announcement-link:hover {
  color: #fff;
}

/* --- Sticky Luxury Header (Clean White Background #FFFFFF) --- */
.site-header {
  position: sticky;
  top: 0;
  width: 100%;
  height: var(--header-height);
  background-color: #ffffff !important;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  z-index: 1000;
  transition: var(--transition-smooth);
}

.site-header.scrolled {
  background-color: #ffffff !important;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  border-bottom: 1px solid rgba(0, 0, 0, 0.12);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand-left {
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.brand-link {
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
}

.brand-logo-img {
  height: 22px;
  width: auto;
  object-fit: contain;
}

/* Item 4: Move SCIENCE. SKIN. RESULTS. under logo in header */
.brand-tagline {
  font-family: var(--font-display);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: #7B3F00;
  margin-top: 4px;
  font-weight: 600;
  white-space: nowrap;
}

.nav-center {
  display: flex;
  align-items: center;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.25rem;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-forest-dark);
  position: relative;
  transition: var(--transition-fast);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-gold-bright);
  transition: var(--transition-smooth);
}

.nav-links a:hover {
  color: var(--color-gold-bright);
}

.nav-links a:hover::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1.15rem;
  flex-shrink: 0;
}

.header-instagram-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-display);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--color-forest-dark);
  text-decoration: none;
  padding: 0.4rem 0.65rem;
  border: 1px solid rgba(17, 27, 20, 0.16);
  background: rgba(17, 27, 20, 0.03);
  transition: var(--transition-fast);
  white-space: nowrap;
}

.header-instagram-link:hover {
  color: var(--color-gold);
  border-color: var(--color-gold);
  background: rgba(201, 162, 86, 0.08);
}

.header-instagram-link svg {
  flex-shrink: 0;
}

.header-cta-btn {
  background: var(--color-forest-dark);
  color: var(--color-cream);
  border: 1px solid var(--color-forest-dark);
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.65rem 1.4rem;
  transition: var(--transition-smooth);
}

.header-cta-btn:hover {
  background: #0b120d;
  color: var(--color-gold-bright);
  border-color: var(--color-gold);
  box-shadow: 0 4px 16px rgba(17, 27, 20, 0.2);
  transform: translateY(-1px);
}

.btn-luxury {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 0.75rem 1.6rem;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  border-radius: 0;
  transition: var(--transition-smooth);
}

.btn-luxury-primary {
  background-color: var(--color-forest-dark);
  color: var(--color-cream);
  border: 1px solid var(--color-forest-dark);
}

.btn-luxury-primary:hover {
  background-color: #0b120d;
  border-color: var(--color-gold);
  color: var(--color-gold-bright);
  box-shadow: 0 6px 20px rgba(17, 27, 20, 0.22);
  transform: translateY(-1px);
}

.btn-luxury-gold {
  background: linear-gradient(135deg, #d3ad60 0%, #b88f3c 100%);
  color: #121a15;
  border: 1px solid var(--color-gold-bright);
  font-weight: 700;
}

.btn-luxury-gold:hover {
  background: linear-gradient(135deg, #e2b95c 0%, #c9a256 100%);
  box-shadow: 0 8px 24px rgba(201, 162, 86, 0.35);
  transform: translateY(-1px);
}

.btn-luxury-outline {
  background: transparent;
  color: var(--color-forest-dark);
  border: 1px solid var(--color-forest-dark);
}

.btn-luxury-outline:hover {
  background-color: var(--color-forest-dark);
  color: var(--color-ivory);
}

.btn-luxury-outline-light {
  background: transparent;
  color: var(--color-ivory);
  border: 1px solid rgba(251, 249, 245, 0.4);
}

.btn-luxury-outline-light:hover {
  background: rgba(251, 249, 245, 0.1);
  border-color: var(--color-ivory);
  color: var(--color-gold-bright);
}

.mobile-menu-btn {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--color-text-dark);
}

/* --- Hero Section --- */
.hero-motion-section {
  position: relative;
  width: 100%;
  min-height: calc(100vh - var(--header-height));
  display: flex;
  align-items: center;
  overflow: hidden;
  background-color: var(--color-forest-dark);
  color: var(--color-ivory);
}

.hero-video-viewport {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 1;
  pointer-events: none;
  background-color: var(--color-forest-dark);
}

.hero-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 110%;
  object-fit: cover;
  object-position: center 30%;
  transform: scale(1.08);
  transform-origin: center 30%;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.8s;
  z-index: 1;
}

.hero-video.active {
  opacity: 1;
  visibility: visible;
  z-index: 2;
}

/* Item 5: Left-side gradient behind the text moving it off model's face and hair */
.hero-video-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    rgba(17, 27, 20, 0.94) 0%,
    rgba(17, 27, 20, 0.82) 36%,
    rgba(17, 27, 20, 0.45) 58%,
    rgba(17, 27, 20, 0.08) 82%,
    rgba(17, 27, 20, 0.2) 100%
  );
  z-index: 3;
  pointer-events: none;
}

.hero-motion-container {
  position: relative;
  z-index: 10;
  padding-top: clamp(3rem, 6vw, 5.5rem);
  padding-bottom: clamp(3rem, 6vw, 5.5rem);
  width: 100%;
}

.hero-motion-content {
  max-width: 620px;
}

/* Item 4: Single eyebrow line above H1 */
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-gold-bright);
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.hero-eyebrow::before {
  content: '';
  display: inline-block;
  width: 22px;
  height: 1.5px;
  background-color: var(--color-gold-bright);
}

/* Item 1, 2, 3: H1 max 2 lines, clamp(34px, 4.5vw, 56px), line-height 1.1, col width 14-16ch, no italic Living Skin flourish */
.hero-motion-title {
  font-family: var(--font-serif);
  font-size: clamp(34px, 4.5vw, 56px);
  line-height: 1.1;
  font-weight: 400;
  color: var(--color-ivory);
  letter-spacing: -0.015em;
  max-width: 24ch;
  margin-bottom: 1.35rem;
}

/* Item 6: Hero subtext */
.hero-motion-subtitle {
  font-size: 1.12rem;
  line-height: 1.6;
  color: rgba(243, 233, 215, 0.92);
  max-width: 540px;
  margin-bottom: 2rem;
  font-weight: 400;
}

.hero-motion-cta-row {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  flex-wrap: wrap;
}

/* --- Bi-City Innovation Bar (India & UAE Only) --- */
.bicity-bar {
  background-color: var(--color-forest-dark);
  border-top: 1px solid rgba(201, 162, 86, 0.15);
  border-bottom: 1px solid rgba(201, 162, 86, 0.15);
  padding: 1.1rem 0;
  color: var(--color-ivory-warm);
}

.bicity-grid {
  display: flex;
  align-items: center;
  justify-content: space-around;
  gap: 2rem;
  flex-wrap: wrap;
}

.bicity-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.bicity-bullet {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--color-gold);
}

.bicity-city {
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-ivory);
}

.bicity-desc {
  font-size: 0.78rem;
  color: rgba(243, 233, 215, 0.72);
  letter-spacing: 0.02em;
  margin-top: 2px;
}

/* --- Section Layouts & Headings --- */
section[id] {
  scroll-margin-top: calc(var(--header-height) + 2.5rem);
}

.section-padding {
  padding-top: clamp(2.75rem, 4vw, 4rem);
  padding-bottom: clamp(2.75rem, 4vw, 4rem);
}

.section-header {
  margin-bottom: clamp(1.75rem, 2.5vw, 2.25rem);
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-gold);
  font-weight: 700;
  margin-bottom: 0.85rem;
}

.section-eyebrow::before {
  content: '';
  width: 22px;
  height: 1.5px;
  background-color: var(--color-gold);
}

.section-title {
  font-family: var(--font-title);
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  line-height: 1.12;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--color-forest-dark);
  margin-bottom: 0.95rem;
}

.section-subtitle {
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--color-text-muted);
  max-width: 680px;
}

/* --- The Three Layers Section & Skin Cross-Section --- */
.philosophy-section {
  background-color: var(--color-cream);
  border-bottom: 1px solid var(--editorial-hairline);
}

.skin-cross-section-wrap {
  margin-bottom: clamp(1.75rem, 2.5vw, 2.25rem);
  background: #001D11;
  border: 1px solid rgba(201, 162, 86, 0.35);
  box-shadow: 0 16px 36px rgba(17, 27, 20, 0.15);
  overflow: hidden;
}

/* Subtle 0.5x ambient cinematic motion for threelayers.png */
@keyframes layersSubtleMotion {
  0% {
    transform: scale(1) translate3d(0, 0, 0);
  }
  50% {
    transform: scale(1.03) translate3d(-0.8%, -0.4%, 0);
  }
  100% {
    transform: scale(1) translate3d(0, 0, 0);
  }
}

.cross-section-img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  animation: layersSubtleMotion 28s ease-in-out infinite alternate;
  will-change: transform;
}

.layers-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.layer-item {
  border-top: 1px solid var(--editorial-hairline);
  padding-top: 1.75rem;
  display: flex;
  flex-direction: column;
}

.layer-item-num {
  font-family: var(--font-display);
  font-size: 0.82rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold);
  font-weight: 700;
  margin-bottom: 0.85rem;
}

.layer-item-title {
  font-family: var(--font-title);
  font-size: 1.85rem;
  font-weight: 600;
  color: var(--color-forest-dark);
  line-height: 1.2;
  margin-bottom: 0.85rem;
}

.layer-item-desc {
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text-dark);
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.layer-item-metric {
  font-family: var(--font-sans);
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--color-forest-light);
  border-left: 2px solid var(--color-gold);
  padding-left: 0.75rem;
}

/* --- Product Showcase Section --- */
.showcase-section {
  background-color: var(--color-cream);
  border-bottom: 1px solid var(--editorial-hairline);
}

.showcase-tab-bar {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: clamp(1.5rem, 2vw, 2rem);
  flex-wrap: wrap;
}

.tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.85rem 1.8rem;
  background: #ffffff;
  border: 1px solid var(--color-border);
  font-family: var(--font-display);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.tab-btn-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-text-muted);
  transition: var(--transition-smooth);
}

.tab-btn.active {
  background-color: var(--color-forest-dark);
  color: var(--color-ivory);
  border-color: var(--color-forest-dark);
}

.tab-btn.active .tab-btn-dot {
  background-color: var(--color-gold-bright);
}

.product-display-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: clamp(2rem, 4vw, 4.5rem);
  align-items: start;
}

.product-gallery-col {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.product-main-view {
  background: #ffffff;
  padding: 1.5rem;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-subtle);
}

.product-main-img {
  width: 100%;
  max-width: 480px;
  height: auto;
  object-fit: contain;
  transition: opacity 0.25s ease;
}

.product-thumbnail-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.85rem;
}

.thumb-card {
  aspect-ratio: 1;
  background: #ffffff;
  border: 1px solid var(--color-border);
  cursor: pointer;
  overflow: hidden;
  padding: 0.35rem;
  transition: var(--transition-fast);
}

.thumb-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.thumb-card.active, .thumb-card:hover {
  border-color: var(--color-gold);
}

/* Item 30: Packaging note matching pump bottle */
.product-packaging-note {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  border-left: 2px solid var(--color-gold);
  padding-left: 0.75rem;
}

.product-info-col {
  display: flex;
  flex-direction: column;
}

.product-badge-clean {
  font-family: var(--font-display);
  font-size: 0.82rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-gold);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.product-title-large {
  font-family: var(--font-title);
  font-size: clamp(2.2rem, 3.5vw, 3rem);
  line-height: 1.15;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--color-forest-dark);
  margin-bottom: 1.15rem;
}

/* Item 23: Price & Commitment Box */
.product-price-box {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-gold);
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.5rem;
}

.product-price-val {
  font-family: var(--font-heading);
  font-size: clamp(20px, 1.8vw, 24px);
  font-weight: 600;
  color: var(--color-forest-dark);
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.product-price-shipping {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--color-forest-light);
  font-weight: 500;
  margin-top: 0.3rem;
}

.product-price-sub {
  font-family: var(--font-heading);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #7B3F00;
  font-weight: 600;
  margin-top: 0.4rem;
}

.product-price-terms {
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--color-text-muted);
  margin-top: 0.45rem;
  line-height: 1.45;
}

.product-summary-text {
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--color-text-dark);
  margin-bottom: 1.75rem;
}

.product-specs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  border-top: 1px solid var(--editorial-hairline);
  border-bottom: 1px solid var(--editorial-hairline);
  padding: 1.35rem 0;
  margin-bottom: 1.75rem;
}

.spec-cell-label {
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 0.35rem;
}

.spec-cell-val {
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--color-forest-dark);
}

.product-section-label {
  font-family: var(--font-display);
  font-size: 0.82rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-gold);
  font-weight: 700;
  margin-bottom: 0.95rem;
}

.product-actives-list {
  list-style: none;
  margin-bottom: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.product-actives-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.96rem;
  color: var(--color-text-dark);
  line-height: 1.5;
}

.product-actives-list svg {
  color: var(--color-gold);
  flex-shrink: 0;
  margin-top: 4px;
}

.product-actions-group {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* --- Tested / In Progress Evidence Block --- */
/* --- Tested / In Progress Evidence Block --- */
.evidence-section {
  background-color: var(--color-cream);
  border-bottom: 1px solid var(--editorial-hairline);
}

.evidence-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.evidence-card {
  border-top: 1px solid var(--editorial-hairline);
  padding-top: 1.5rem;
  display: flex;
  flex-direction: column;
}

.evidence-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
}

.status-complete { color: #2e7d32; }
.status-complete .status-dot { background-color: #2e7d32; }

.status-progress { color: #c67d0a; }
.status-progress .status-dot { background-color: #c67d0a; }

.status-scheduled { color: #556b60; }
.status-scheduled .status-dot { background-color: #556b60; }

.evidence-card-title {
  font-family: var(--font-title);
  font-size: 1.45rem;
  font-weight: 600;
  color: var(--color-forest-dark);
  line-height: 1.25;
  margin-bottom: 0.75rem;
}

.evidence-card-desc {
  font-size: 0.94rem;
  line-height: 1.6;
  color: var(--color-text-dark);
}

/* --- Biomimetic Science Section (Dark Forest Obsidian #111B14 Matching Header) --- */
.biomimetic-section {
  background-color: var(--color-forest-dark);
  color: var(--color-cream);
}

.biomimetic-card {
  border-top: 1px solid var(--color-border-dark);
  padding-top: 2rem;
}

.bilayer-visualizer-box {
  background: radial-gradient(circle at 50% 50%, rgba(30, 43, 37, 0.6) 0%, rgba(17, 27, 20, 0.96) 100%);
  border: 1px solid var(--color-border-dark);
  padding: clamp(1.5rem, 2.5vw, 2.25rem) 1.75rem;
  text-align: center;
  margin-bottom: clamp(1.75rem, 2.5vw, 2.25rem);
}

.bilayer-header-label {
  font-family: var(--font-display);
  font-size: 0.82rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-gold-bright);
  font-weight: 700;
  margin-bottom: 0.65rem;
}

.bilayer-header-desc {
  font-size: 0.94rem;
  color: var(--color-text-light-muted);
  max-width: 680px;
  margin: 0 auto 1.5rem auto;
  line-height: 1.6;
}

.bilayer-canvas {
  width: 100%;
  max-width: 1020px;
  height: 340px;
  display: block;
  margin: 0 auto;
}

.bilayer-product-label {
  font-family: var(--font-display);
  font-size: 0.82rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-gold-bright);
  font-weight: 600;
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(243, 233, 215, 0.12);
}

.science-pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.science-pillar-item {
  border-top: 1px solid var(--color-border-dark);
  padding-top: 1.5rem;
}

.science-pillar-title {
  font-family: var(--font-display);
  font-size: 0.9rem;
  color: var(--color-gold-bright);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.65rem;
}

.science-pillar-desc {
  font-size: 0.96rem;
  color: var(--color-text-light-muted);
  line-height: 1.6;
}

/* --- Founder Statement Section (Refined Cream #FAF8F5 Background) --- */
.founder-section {
  background-color: var(--color-cream);
  border-bottom: 1px solid var(--editorial-hairline);
}

.founder-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(2rem, 4vw, 4.5rem);
  align-items: center;
}

.founder-visual-frame {
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-subtle);
  overflow: hidden;
  background: #ffffff;
}

.founder-visual-img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.founder-letter-col {
  display: flex;
  flex-direction: column;
}

.founder-quote-banner {
  font-family: var(--font-heading);
  font-size: clamp(22px, 2vw, 26px);
  line-height: 1.3;
  font-weight: 500;
  font-style: normal;
  color: var(--color-forest-dark);
  border-left: 2px solid var(--color-gold);
  padding-left: 1.25rem;
  margin: 1.25rem 0 1.5rem 0;
}

.founder-body-text {
  font-family: var(--font-body);
  font-size: clamp(16px, 1.2vw, 17px);
  line-height: 1.65;
  color: var(--color-text-dark);
  display: flex;
  flex-direction: column;
  gap: 0.95rem;
  margin-bottom: 1.75rem;
}

.founder-sign-block {
  border-top: 1px solid var(--editorial-hairline);
  padding-top: 1.25rem;
}

.founder-signature-img {
  height: 56px;
  width: auto;
  object-fit: contain;
  mix-blend-mode: multiply;
  margin-bottom: 0.35rem;
  display: block;
}

.founder-title-role {
  font-family: var(--font-heading);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #7B3F00;
  font-weight: 600;
}

.founder-locations {
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--color-text-muted);
  margin-top: 0.2rem;
  letter-spacing: 0.04em;
}

/* --- Membership Privileges Section (Refined Cream #FAF8F5 Background) --- */
.perks-section {
  background-color: var(--color-cream);
  border-bottom: 1px solid var(--editorial-hairline);
}

.perks-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  margin-bottom: clamp(2rem, 3vw, 2.5rem);
}

.perk-item {
  border-top: 1px solid var(--editorial-hairline);
  padding-top: 1.75rem;
  display: flex;
  flex-direction: column;
}

/* Item 35: Enlarge perk icons */
.perk-icon-wrap {
  width: 58px;
  height: 58px;
  border-radius: 4px;
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gold);
  margin-bottom: 1.25rem;
  box-shadow: var(--shadow-subtle);
}

.perk-icon-wrap svg {
  width: 32px;
  height: 32px;
}

.perk-title {
  font-family: var(--font-title);
  font-size: 1.45rem;
  font-weight: 600;
  color: var(--color-forest-dark);
  line-height: 1.25;
  margin-bottom: 0.75rem;
}

.perk-desc {
  font-size: 0.98rem;
  line-height: 1.6;
  color: var(--color-text-dark);
}

/* --- Reservation Form Suite (Dark Forest Obsidian #111B14 Matching Header) --- */
.reservation-card {
  background-color: var(--color-forest-dark);
  color: var(--color-cream);
  padding: clamp(2rem, 4vw, 3.5rem);
  border: 1px solid var(--color-border-dark);
}

.reservation-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: clamp(2rem, 4vw, 4rem);
  align-items: start;
}

.reservation-form-title {
  font-family: var(--font-title);
  font-size: clamp(2rem, 3.2vw, 2.8rem);
  line-height: 1.15;
  font-weight: 600;
  color: var(--color-cream);
  margin-bottom: 1.25rem;
}

.reservation-terms-summary {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(201, 162, 86, 0.3);
  padding: 1.25rem;
  margin-bottom: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.reservation-term-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  font-size: 0.88rem;
  border-bottom: 1px solid rgba(243, 233, 215, 0.08);
  padding-bottom: 0.45rem;
}

.reservation-term-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.reservation-term-label {
  color: rgba(243, 233, 215, 0.75);
}

.reservation-term-val {
  font-weight: 600;
  color: var(--color-cream);
}

.reservation-term-val.highlight {
  color: var(--color-gold-bright);
}

.reservation-meta-box {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  border-top: 1px solid rgba(243, 233, 215, 0.15);
  padding-top: 1.25rem;
}

.reservation-batch-limit {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.84rem;
  color: var(--color-gold-bright);
  font-weight: 600;
}

.reservation-dispatch-note {
  font-size: 0.8rem;
  color: rgba(243, 233, 215, 0.72);
  line-height: 1.5;
}

.reservation-form {
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-label {
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-gold-bright);
  font-weight: 600;
}

.form-input, .form-select {
  width: 100%;
  padding: 0.85rem 1rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(243, 233, 215, 0.25);
  color: var(--color-cream);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  border-radius: 0;
  outline: none;
  transition: var(--transition-fast);
}

.form-input:focus, .form-select:focus {
  border-color: var(--color-gold-bright);
  background: rgba(255, 255, 255, 0.1);
}

.form-select option {
  background-color: var(--color-forest-dark);
  color: var(--color-cream);
}

/* Item 38: Consent Checkbox */
.consent-group {
  margin-top: 0.35rem;
}

.consent-label {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.84rem;
  color: rgba(243, 233, 215, 0.85);
  line-height: 1.5;
  cursor: pointer;
}

.consent-checkbox {
  margin-top: 3px;
  accent-color: var(--color-gold);
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.consent-link {
  color: var(--color-gold-bright);
  text-decoration: underline;
}

/* Item 39: What happens next line */
.form-next-step {
  font-size: 0.82rem;
  line-height: 1.55;
  color: rgba(243, 233, 215, 0.75);
  margin-top: 0.75rem;
}

.form-next-step strong {
  color: var(--color-gold-bright);
}

/* --- FAQ Section (Refined Cream #FAF8F5 Background) --- */
.faq-section {
  background-color: var(--color-cream);
  border-bottom: 1px solid var(--editorial-hairline);
}

.faq-accordion-wrap {
  max-width: var(--container-narrow);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  border-top: 1px solid var(--editorial-hairline);
  padding: 1.25rem 0;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  font-family: var(--font-title);
  font-size: 1.45rem;
  font-weight: 600;
  color: var(--color-forest-dark);
  cursor: pointer;
  list-style: none;
  line-height: 1.3;
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-arrow {
  font-size: 1.2rem;
  color: var(--color-gold);
  transition: transform 0.3s ease;
}

details[open] .faq-arrow {
  transform: rotate(180deg);
}

.faq-answer {
  padding-top: 1rem;
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text-dark);
}

/* --- Modals Styling --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(17, 27, 20, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-pass-card {
  background-color: var(--color-forest-dark);
  color: var(--color-ivory);
  border: 1px solid rgba(201, 162, 86, 0.4);
  padding: clamp(2rem, 3.5vw, 3rem);
  max-width: 580px;
  width: 100%;
  position: relative;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
  max-height: 90vh;
  overflow-y: auto;
}

.modal-pass-card.modal-wide {
  max-width: 820px;
}

.modal-close-btn {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: transparent;
  border: none;
  color: var(--color-ivory);
  cursor: pointer;
  padding: 0.4rem;
  transition: var(--transition-fast);
}

.modal-close-btn:hover {
  color: var(--color-gold);
}

.modal-cert-box {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(201, 162, 86, 0.35);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.modal-cert-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(243, 233, 215, 0.15);
  padding-bottom: 0.75rem;
  margin-bottom: 1rem;
}

.modal-cert-label {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(243, 233, 215, 0.65);
}

.modal-cert-serial {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--color-gold-bright);
  font-weight: 700;
}

.modal-cert-status {
  font-size: 0.8rem;
  color: #4ade80;
  font-weight: 600;
}

.modal-cert-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  font-size: 0.88rem;
}

.modal-cert-val {
  color: var(--color-ivory);
  font-weight: 500;
  margin-top: 2px;
}

.modal-cert-highlight {
  color: var(--color-gold-bright);
  font-weight: 600;
  margin-top: 2px;
}

.modal-cert-footer-text {
  font-size: 0.82rem;
  color: rgba(243, 233, 215, 0.75);
  text-align: center;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.inci-formula-title {
  font-family: var(--font-title);
  font-size: 1.45rem;
  font-weight: 600;
  color: var(--color-gold-bright);
  margin-bottom: 0.35rem;
}

.inci-formula-desc {
  font-size: 0.82rem;
  color: rgba(243, 233, 215, 0.75);
  margin-bottom: 0.75rem;
}

.inci-text-box {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(243, 233, 215, 0.12);
  padding: 1.15rem;
  font-size: 0.84rem;
  line-height: 1.65;
  color: rgba(243, 233, 215, 0.9);
}

/* --- Ultra-Premium Luxury Footer --- */
.site-footer {
  background-color: var(--color-forest-dark);
  color: var(--color-ivory);
  padding: clamp(3.25rem, 4.5vw, 4rem) 0 2rem 0;
  border-top: 1px solid rgba(201, 162, 86, 0.2);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 2.5rem;
  flex-wrap: wrap;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(243, 233, 215, 0.14);
}

.footer-brand-col {
  max-width: 420px;
}

.footer-logo-img {
  height: 22px;
  filter: brightness(0) invert(1);
  margin-bottom: 0.85rem;
}

.footer-bio-text {
  font-size: 0.88rem;
  line-height: 1.65;
  color: rgba(243, 233, 215, 0.75);
}

.footer-brand-social {
  margin-top: 1.25rem;
}

.footer-insta-btn-lhs {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.45rem 0.95rem;
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 4px;
  color: #ffffff !important;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  text-decoration: none;
  transition: var(--transition-fast);
}

.footer-insta-btn-lhs:hover {
  background-color: rgba(255, 255, 255, 0.18);
  border-color: #ffffff;
  color: #ffffff !important;
}

.footer-insta-btn-lhs svg {
  flex-shrink: 0;
}

.footer-insta-btn-lhs .insta-at-symbol {
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 700;
  color: #ffffff !important;
}

.footer-hubs-col {
  text-align: right;
  max-width: 480px;
}

.footer-cities {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-gold-bright);
  font-weight: 700;
  margin-bottom: 0.65rem;
}

.footer-company-address {
  font-style: normal;
  font-size: 0.84rem;
  line-height: 1.55;
  color: rgba(243, 233, 215, 0.88);
  margin-bottom: 0.55rem;
}

.footer-company-address strong {
  color: #ffffff !important;
  font-weight: 600;
  font-size: 0.9rem;
  display: inline-block;
  margin-bottom: 2px;
}

.footer-mail-row {
  margin-bottom: 0.65rem;
  display: flex;
  justify-content: flex-end;
}

.footer-mail-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: #ffffff !important;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: var(--transition-fast);
}

.footer-mail-link:hover {
  text-decoration: underline;
  color: var(--color-gold-bright) !important;
}

.footer-mail-link svg {
  flex-shrink: 0;
}

.footer-hubs-desc {
  font-size: 0.76rem;
  color: rgba(243, 233, 215, 0.6);
  letter-spacing: 0.03em;
  line-height: 1.45;
}

/* Item 40: Policy & Compliance Links */
.footer-links-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  flex-wrap: wrap;
  padding: 1.75rem 0;
  border-bottom: 1px solid rgba(243, 233, 215, 0.1);
}

.footer-link {
  color: rgba(243, 233, 215, 0.85);
  text-decoration: none;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  transition: var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-gold-bright);
  text-decoration: underline;
}

.footer-link-sep {
  color: rgba(201, 162, 86, 0.4);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  padding-top: 1.75rem;
  font-size: 0.78rem;
  color: rgba(243, 233, 215, 0.6);
}

.footer-protocols {
  display: flex;
  gap: 1.75rem;
  flex-wrap: wrap;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.74rem;
  color: rgba(243, 233, 215, 0.75);
}

/* --- Responsive Media Queries --- */
@media (max-width: 1024px) {
  .layers-grid {
    grid-template-columns: 1fr;
  }
  .product-display-grid {
    grid-template-columns: 1fr;
  }
  .evidence-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .science-pillars-grid {
    grid-template-columns: 1fr;
  }
  .founder-grid {
    grid-template-columns: 1fr;
  }
  .perks-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .reservation-grid {
    grid-template-columns: 1fr;
  }
  .footer-hubs-col {
    text-align: left;
  }
}

@media (max-width: 768px) {
  .nav-center {
    display: none;
  }
  .header-cta-btn {
    display: none;
  }
  .mobile-menu-btn {
    display: block;
  }
  .evidence-grid {
    grid-template-columns: 1fr;
  }
  .perks-grid {
    grid-template-columns: 1fr;
  }
  .form-group-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}