/* ===== Helix Health Sciences ===== */
/* Brand Palette */
:root {
  --blue: #034AA6;
  --blue-light: #0A5FD4;
  --navy: #092640;
  --teal-dark: #164F73;
  --teal: #11768C;
  --light: #F2F2F2;
  --light-blue: #EBF1FA;
  --white: #ffffff;
  --text: #2D3748;
  --text-light: #596577;
  --border: #E2E8F0;
  --shadow-sm: 0 1px 3px rgba(9,38,64,0.06), 0 1px 2px rgba(9,38,64,0.04);
  --shadow-md: 0 4px 14px rgba(9,38,64,0.08);
  --shadow-lg: 0 10px 30px rgba(9,38,64,0.12);
  --shadow-xl: 0 20px 50px rgba(9,38,64,0.15);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  scroll-padding-top: 120px;
}

body {
  font-family: 'Inter', 'Segoe UI', sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

*:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Typography ===== */
h1, h2, h3, h4 {
  font-family: 'Science Gothic', 'Inter', 'Segoe UI', sans-serif;
  font-weight: 700;
  line-height: 1.2;
  color: var(--navy);
  letter-spacing: -0.02em;
}

h1 { font-size: 3.25rem; }
h2 { font-size: 2.15rem; }
h3 { font-size: 1.35rem; }
h4 { font-size: 1.1rem; }

/* Gradient text */
.gradient-text {
  background: linear-gradient(135deg, var(--blue) 0%, var(--teal) 50%, var(--blue-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===== Scroll Animations ===== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 15px 36px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background 0.3s, color 0.3s, transform 0.3s, box-shadow 0.3s, border-color 0.3s;
  border: none;
  letter-spacing: 0.01em;
}

.btn-primary {
  background: var(--blue);
  color: var(--white);
  box-shadow: 0 4px 14px rgba(3,74,166,0.3);
  border: 2px solid transparent;
}

.btn-primary:hover {
  background: var(--blue-light);
  box-shadow: 0 6px 20px rgba(3,74,166,0.4);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--blue);
  border: 2px solid var(--blue);
}

.btn-outline:hover {
  background: var(--blue);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(3,74,166,0.3);
}

.btn:active { transform: translateY(0); }

/* ===== Navigation ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: linear-gradient(135deg, var(--navy) 0%, var(--teal-dark) 100%);
  padding: 0 24px;
  transition: box-shadow 0.3s;
}

.navbar::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(255,255,255,0.04);
  pointer-events: none;
}

.navbar::after {
  content: '';
  position: absolute;
  bottom: -30px;
  left: 20%;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: rgba(255,255,255,0.03);
  pointer-events: none;
}

.navbar.scrolled {
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 105px;
  position: relative;
  z-index: 10;
}

.nav-logo-img {
  max-height: 50px;
  width: auto;
}

.nav-links {
  display: flex;
  gap: 36px;
  align-items: center;
}

.nav-links > a,
.nav-dropdown > a {
  font-weight: 500;
  color: rgba(255,255,255,0.75);
  transition: color 0.2s;
  font-size: 0.95rem;
  position: relative;
}

.nav-links > a::after,
.nav-dropdown > a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--teal);
  transition: width 0.3s ease;
}

.nav-links > a:hover::after,
.nav-links > a.active::after,
.nav-dropdown > a:hover::after,
.nav-dropdown > a.active::after {
  width: 100%;
}

.nav-links > a:hover,
.nav-links > a.active,
.nav-dropdown > a:hover,
.nav-dropdown > a.active {
  color: var(--white);
}

/* Nav Dropdown */
.nav-dropdown {
  position: relative;
}

.nav-dropdown > a {
  cursor: pointer;
}

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  min-width: auto;
  background: var(--white);
  border-radius: 10px;
  box-shadow: var(--shadow-lg);
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s, visibility 0.2s, transform 0.2s;
  transform: translateX(-50%) translateY(8px);
  z-index: 100;
  border: 1px solid var(--border);
}

.nav-dropdown:hover .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav-dropdown-menu a {
  display: block;
  padding: 10px 20px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
  transition: background 0.15s, color 0.15s;
  white-space: nowrap;
}

.nav-dropdown-menu a::after {
  display: none;
}

.nav-dropdown-menu a:hover {
  background: var(--light-blue);
  color: var(--blue);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: all 0.3s;
}

/* ===== Hero Helix Background ===== */
@keyframes helixSpin {
  0% { transform: rotateY(0deg); }
  100% { transform: rotateY(360deg); }
}

@keyframes helixSpin90 {
  0% { transform: rotateY(90deg); }
  100% { transform: rotateY(450deg); }
}

.hero-helix {
  position: absolute;
  top: -20%;
  left: 50%;
  width: 250px;
  height: 140%;
  margin-left: -125px;
  z-index: 0;
  pointer-events: none;
  perspective: 800px;
  transform-style: preserve-3d;
  transform: rotate(45deg);
}

.hero-helix svg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
}

.hero-helix svg:first-child {
  animation: helixSpin 20s linear infinite;
}

.hero-helix svg:last-child {
  animation: helixSpin90 20s linear infinite;
}

/* ===== Hero Particles ===== */
.hero-particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

/* ===== Hero Sections ===== */
.hero {
  padding: 145px 24px 100px;
  background: linear-gradient(160deg, var(--white) 0%, var(--light-blue) 40%, var(--light) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(3,74,166,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero .container {
  display: flex;
  align-items: center;
  gap: 60px;
}

.hero-content {
  flex: 1;
}

.hero-image {
  flex: 0 1 500px;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.hero-image::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 85%;
  height: 85%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(3,74,166,0.08) 0%, transparent 70%);
  z-index: 0;
}

.hero-image img {
  max-height: 500px;
  max-width: 100%;
  border-radius: 16px;
  position: relative;
  z-index: 1;
  filter: drop-shadow(0 20px 40px rgba(9,38,64,0.15));
  object-fit: contain;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 16px;
  color: var(--navy);
  letter-spacing: -0.03em;
}

.hero h1 .accent {
  color: var(--blue);
  position: relative;
}

.hero .subheadline {
  font-size: 1.3rem;
  color: var(--teal-dark);
  font-weight: 500;
  margin-bottom: 12px;
}

.hero .supporting {
  font-size: 1.1rem;
  color: var(--text-light);
  margin-bottom: 36px;
  max-width: 520px;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ===== Scroll Progress Bar ===== */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--teal));
  z-index: 1100;
  width: 0%;
  transition: width 0.1s linear;
}

/* ===== Wave Dividers ===== */
/* Waves attach to bottom of sections */
.has-wave-bottom {
  position: relative;
  padding-bottom: 60px;
}

.has-wave-bottom .wave-bottom {
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 60px;
  z-index: 2;
  opacity: 1 !important;
  transform: none !important;
  animation: none !important;
}

.has-wave-bottom .wave-bottom svg {
  display: block;
  width: 100%;
  height: 100%;
}

/* ===== Animated Counters ===== */
.counter-value {
  display: inline-block;
  font-variant-numeric: tabular-nums;
}

/* ===== Sections ===== */
.section {
  padding: 100px 24px;
}

.section-alt {
  background: var(--light);
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header h2 {
  margin-bottom: 16px;
  position: relative;
  display: inline-block;
}

.section-header p {
  font-size: 1.1rem;
  color: var(--text-light);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.8;
}

/* Decorative accent line under section titles */
.section-header h2::after {
  content: '';
  display: block;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--teal));
  border-radius: 2px;
  margin: 16px auto 0;
  transform: scaleX(0);
  transform-origin: left;
  opacity: 0;
}

.fade-in.visible .section-header h2::after,
.has-wave-bottom .section-header h2::after,
.section-header h2.line-visible::after {
  animation: lineDrawIn 1.2s cubic-bezier(0.22, 0.61, 0.36, 1) 0.4s forwards,
             lineShimmer 6s linear 1.7s infinite;
  background: linear-gradient(90deg, var(--blue) 0%, var(--teal) 35%, #5ec4d6 50%, var(--teal) 65%, var(--blue) 100%);
  background-size: 300% 100%;
}

/* ===== Staggered Card Entrance ===== */
@keyframes cardSlideIn {
  0% {
    opacity: 0;
    transform: translateY(40px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in.visible .stagger-1, .has-wave-bottom .stagger-1 { animation: cardSlideIn 0.6s cubic-bezier(0.22, 1, 0.36, 1) 0.1s forwards; }
.fade-in.visible .stagger-2, .has-wave-bottom .stagger-2 { animation: cardSlideIn 0.6s cubic-bezier(0.22, 1, 0.36, 1) 0.25s forwards; }
.fade-in.visible .stagger-3, .has-wave-bottom .stagger-3 { animation: cardSlideIn 0.6s cubic-bezier(0.22, 1, 0.36, 1) 0.4s forwards; }
.fade-in.visible .stagger-4, .has-wave-bottom .stagger-4 { animation: cardSlideIn 0.6s cubic-bezier(0.22, 1, 0.36, 1) 0.55s forwards; }

.stagger-1, .stagger-2, .stagger-3, .stagger-4 {
  opacity: 0;
}

/* ===== Why Helix — rich section styling ===== */
.why-helix {
  background: linear-gradient(160deg, var(--light) 0%, var(--light-blue) 100%);
  position: relative;
  overflow: hidden;
}

.why-helix::before {
  content: '';
  position: absolute;
  top: -150px;
  right: -150px;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(3,74,166,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.why-helix::after {
  content: '';
  position: absolute;
  bottom: -120px;
  left: -120px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(17,118,140,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.why-helix .container {
  position: relative;
  z-index: 1;
}

/* ===== Why Helix Grid ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 28px;
}

.feature-card {
  background: rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 14px;
  padding: 40px 28px;
  box-shadow: 0 4px 24px rgba(9, 38, 64, 0.06);
  transition: transform 0.3s, box-shadow 0.3s, background 0.3s, border-color 0.3s;
  border: 1px solid rgba(255, 255, 255, 0.5);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 0 1px rgba(3, 74, 166, 0.2), 0 8px 32px rgba(3, 74, 166, 0.1);
  background: rgba(235, 241, 250, 0.7);
  border-color: rgba(3, 74, 166, 0.15);
}

.feature-card:hover .feature-icon {
  background: linear-gradient(135deg, var(--blue-light), #15a0b8);
}

.feature-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--blue), var(--teal));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  transition: background 0.3s;
}

.feature-icon svg {
  width: 26px;
  height: 26px;
  fill: none;
  stroke: var(--white);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.feature-card h3 {
  margin-bottom: 10px;
  color: var(--navy);
}

.feature-card p {
  color: var(--text-light);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ===== Featured Product Banner (animated shine) ===== */
@keyframes bannerShine {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

.featured-section {
  padding: 0 0 100px;
}

.featured-banner {
  width: 100vw;
  margin-left: calc(-50vw + 50%);
  margin-bottom: 80px;
  padding: 72px 24px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.banner-wave-top {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 60px;
  z-index: 3;
  display: block;
}

.featured-banner h2 {
  position: relative;
  z-index: 2;
  margin: 0;
  color: var(--white);
  text-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.featured-banner h2::after {
  display: none !important;
}

.banner-style-10 {
  background: linear-gradient(
    90deg,
    var(--navy) 0%,
    var(--teal-dark) 30%,
    var(--teal) 50%,
    var(--teal-dark) 70%,
    var(--navy) 100%
  );
  background-size: 200% 100%;
  animation: bannerShine 8s linear infinite;
}

/* ===== Featured Product ===== */
.featured-product {
  display: flex;
  align-items: center;
  gap: 80px;
}

.featured-product-info h2,
.featured-product-info h3 {
  font-size: 1.75rem;
  margin-bottom: 16px;
}

.featured-highlights {
  display: flex;
  gap: 14px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.featured-highlights .highlight-badge {
  flex: 1;
  min-width: 110px;
}

.featured-trust {
  display: flex;
  gap: 24px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.featured-trust .trust-badge {
  font-size: 0.82rem;
}

.featured-trust .trust-badge svg {
  width: 18px;
  height: 18px;
}

.featured-product-image {
  flex: 1;
  display: flex;
  justify-content: center;
  position: relative;
}

.featured-product-image::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80%;
  height: 80%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(17,118,140,0.08) 0%, transparent 70%);
}

.featured-product-image img {
  max-height: 500px;
  border-radius: 16px;
  position: relative;
  z-index: 1;
  filter: drop-shadow(0 16px 34px rgba(9,38,64,0.15));
}

.featured-product-info {
  flex: 1;
}

.featured-product-info h2 {
  margin-bottom: 16px;
  font-size: 2rem;
}

.featured-product-info > p {
  color: var(--text-light);
  margin-bottom: 24px;
  font-size: 1.05rem;
  line-height: 1.8;
}

.benefit-list {
  margin-bottom: 32px;
}

.benefit-list li {
  padding: 10px 0;
  padding-left: 32px;
  position: relative;
  color: var(--text);
  font-size: 1.02rem;
  line-height: 1.6;
}

.benefit-list li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  top: 10px;
  width: 20px;
  height: 20px;
  background: linear-gradient(135deg, var(--blue), var(--teal));
  border-radius: 50%;
  color: var(--white);
  font-size: 11px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

/* ===== Product Page Specific ===== */
.product-hero {
  padding: 145px 24px 100px;
  background: linear-gradient(160deg, var(--white) 0%, var(--light-blue) 40%, var(--light) 100%);
  position: relative;
  overflow: hidden;
}

.product-hero::before {
  content: '';
  position: absolute;
  bottom: -150px;
  left: -150px;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(17,118,140,0.05) 0%, transparent 70%);
  pointer-events: none;
}

.product-hero .container {
  display: flex;
  gap: 60px;
  align-items: center;
}

.product-hero-content {
  flex: 1;
}

.product-hero-content h1 {
  font-size: 3rem;
  margin-bottom: 20px;
}

.product-hero-content > p {
  font-size: 1.05rem;
  color: var(--text-light);
  margin-bottom: 28px;
  line-height: 1.8;
}

.product-highlights {
  display: flex;
  gap: 16px;
  margin-bottom: 32px;
}

.highlight-badge {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 22px;
  text-align: center;
  min-width: 130px;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.highlight-badge:hover {
  border-color: var(--blue);
  box-shadow: 0 4px 12px rgba(3,74,166,0.1);
}

.highlight-badge .number {
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--blue);
  display: block;
  letter-spacing: -0.02em;
}

.highlight-badge .label {
  font-size: 0.8rem;
  color: var(--text-light);
  margin-top: 4px;
  font-weight: 500;
}

/* Product Image Slideshow */
.product-slideshow {
  flex: 0 1 500px;
  position: relative;
  overflow: hidden;
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  max-height: 500px;
}

.slideshow-track {
  display: flex;
  transition: transform 0.5s ease;
  height: 100%;
}

.slideshow-track img {
  min-width: 100%;
  max-height: 500px;
  object-fit: contain;
  border-radius: 16px;
}

.slideshow-controls {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
}

.slideshow-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,0.5);
  border: none;
  cursor: pointer;
  transition: background 0.3s, transform 0.3s;
}

.slideshow-dot.active {
  background: var(--white);
  transform: scale(1.2);
}

.slide-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255,255,255,0.9);
  border: none;
  border-radius: 50%;
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.3rem;
  color: var(--navy);
  transition: background 0.2s, transform 0.2s;
  z-index: 2;
  box-shadow: var(--shadow-sm);
}

.slide-arrow:hover {
  background: var(--white);
  transform: translateY(-50%) scale(1.08);
}

.slide-arrow.prev { left: 12px; }
.slide-arrow.next { right: 12px; }

/* ===== Benefits Grid ===== */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 28px;
}

.benefit-card {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 14px;
  padding: 40px 28px;
  box-shadow: 0 4px 24px rgba(9, 38, 64, 0.06);
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.7);
  transition: transform 0.3s, box-shadow 0.3s, background 0.3s, border-color 0.3s;
}

.benefit-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 0 1px rgba(3, 74, 166, 0.2), 0 8px 32px rgba(3, 74, 166, 0.1);
  background: rgba(235, 241, 250, 0.85);
  border-color: rgba(3, 74, 166, 0.15);
}

.benefit-card:hover .benefit-card-icon {
  background: linear-gradient(135deg, var(--blue-light), #15a0b8);
}

.benefit-card-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--blue), var(--teal));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  transition: background 0.3s;
}

.benefit-card-icon svg {
  width: 28px;
  height: 28px;
  fill: none;
  stroke: var(--white);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.benefit-card h3 {
  margin-bottom: 10px;
  font-size: 1.15rem;
}

.benefit-card p {
  color: var(--text-light);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ===== Ingredients ===== */
.ingredients-section .container {
  max-width: 900px;
}

.ingredients-intro {
  text-align: center;
  margin-bottom: 40px;
}

.ingredients-intro h2 {
  display: inline-block;
}

.ingredients-intro h2::after {
  content: '';
  display: block;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--teal));
  border-radius: 2px;
  margin: 16px auto 0;
  transform: scaleX(0);
  transform-origin: left;
  opacity: 0;
}

.fade-in.visible .ingredients-intro h2::after {
  animation: lineDrawIn 1.2s cubic-bezier(0.22, 0.61, 0.36, 1) 0.4s forwards,
             lineShimmer 6s linear 1.7s infinite;
  background: linear-gradient(90deg, var(--blue) 0%, var(--teal) 35%, #5ec4d6 50%, var(--teal) 65%, var(--blue) 100%);
  background-size: 300% 100%;
}

.ingredients-intro p {
  color: var(--text-light);
  font-size: 1.05rem;
  max-width: 640px;
  margin: 16px auto 0;
  line-height: 1.8;
}

.enhancements {
  display: flex;
  gap: 24px;
  justify-content: center;
  margin-top: 40px;
}

.enhancement-card {
  background: var(--white);
  border-radius: 14px;
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  flex: 1;
  max-width: 360px;
  border: 1px solid var(--border);
  border-left: 4px solid var(--blue);
  transition: box-shadow 0.3s;
}

.enhancement-card:hover {
  box-shadow: var(--shadow-md);
}

.enhancement-card h3 {
  color: var(--blue);
  margin-bottom: 8px;
  font-size: 1.15rem;
}

.enhancement-card p {
  color: var(--text-light);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ===== Trust Badges ===== */
.trust-badges {
  padding: 24px 24px;
  background: var(--white);
  border-bottom: 1px solid var(--border);
}

.trust-badges-row {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.trust-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--teal-dark);
  font-size: 0.9rem;
  font-weight: 600;
}

.trust-badge svg {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

/* ===== Section Disclaimer ===== */
.section-disclaimer {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-light);
  margin-top: 32px;
  opacity: 0.7;
  font-style: italic;
}

/* ===== Suggested Use ===== */
.suggested-use-box {
  background: linear-gradient(135deg, var(--navy) 0%, var(--teal-dark) 100%);
  border-radius: 20px;
  padding: 56px 48px;
  text-align: center;
  color: var(--white);
  max-width: 720px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}

.suggested-use-box::before {
  content: '';
  position: absolute;
  top: -50px;
  right: -50px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(255,255,255,0.04);
  pointer-events: none;
}

.suggested-use-box h2 {
  color: var(--white);
  margin-bottom: 16px;
}

.suggested-use-box h2::after {
  background: rgba(255,255,255,0.3);
  margin: 16px auto 0;
}

.suggested-use-box p {
  font-size: 1.15rem;
  opacity: 0.9;
  line-height: 1.7;
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 22px 0;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--navy);
  gap: 16px;
  transition: color 0.2s;
  font-family: 'Inter', 'Segoe UI', sans-serif;
}

.faq-question:hover {
  color: var(--blue);
}

.faq-icon {
  font-size: 1.5rem;
  transition: transform 0.3s;
  flex-shrink: 0;
  color: var(--blue);
  font-weight: 300;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
}

.faq-item.open .faq-answer {
  max-height: 600px;
  padding-bottom: 22px;
}

.faq-answer p {
  color: var(--text-light);
  font-size: 0.97rem;
  line-height: 1.8;
}

/* ===== Mission Grid ===== */
.mission-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
  max-width: 1000px;
  margin: 0 auto;
}

.mission-card {
  background: rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 14px;
  padding: 40px 28px;
  box-shadow: 0 4px 24px rgba(9, 38, 64, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.5);
  text-align: center;
  transition: transform 0.3s, box-shadow 0.3s, background 0.3s;
  position: relative;
  overflow: hidden;
}

.mission-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 0 1px rgba(3, 74, 166, 0.2), 0 8px 32px rgba(3, 74, 166, 0.1);
  background: rgba(235, 241, 250, 0.7);
  border-color: rgba(3, 74, 166, 0.15);
}

.mission-card:hover .mission-icon {
  background: linear-gradient(135deg, var(--blue-light), #15a0b8);
}

.mission-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--blue), var(--teal));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  color: var(--white);
  transition: background 0.3s;
}

.mission-icon svg {
  width: 26px;
  height: 26px;
  stroke: var(--white);
}

.mission-card h3 {
  margin-bottom: 12px;
  color: var(--navy);
}

.mission-card p {
  color: var(--text-light);
  font-size: 0.95rem;
  line-height: 1.8;
}

/* ===== About Page ===== */
.about-hero {
  padding: 145px 24px 100px;
  background: linear-gradient(160deg, var(--white) 0%, var(--light-blue) 40%, var(--light) 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.about-hero::before {
  content: '';
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(3,74,166,0.04) 0%, transparent 70%);
  pointer-events: none;
}

.about-hero h1 {
  margin-bottom: 24px;
  position: relative;
}

.about-hero .lead {
  font-size: 1.15rem;
  color: var(--text-light);
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.9;
  position: relative;
}

.about-content {
  max-width: 800px;
  margin: 0 auto;
}

.about-content p {
  font-size: 1.08rem;
  color: var(--text-light);
  margin-bottom: 24px;
  line-height: 1.9;
}

.about-values {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 28px;
  margin-top: 20px;
}

.value-card {
  text-align: center;
  padding: 40px 28px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow: 0 4px 24px rgba(9, 38, 64, 0.06);
  transition: transform 0.3s, background 0.3s, box-shadow 0.3s;
}

.value-card:hover {
  transform: translateY(-3px);
  background: var(--white);
  box-shadow: 0 8px 32px rgba(9, 38, 64, 0.12);
  border-color: rgba(3, 74, 166, 0.15);
}

.value-card h3 {
  margin-bottom: 10px;
  color: var(--blue);
}

.value-card p {
  color: var(--text-light);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ===== CTA Banner ===== */
.cta-banner {
  padding: 80px 24px;
  background: linear-gradient(135deg, var(--navy) 0%, var(--teal-dark) 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: rgba(255,255,255,0.03);
  pointer-events: none;
}

.cta-banner::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: -80px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(255,255,255,0.03);
  pointer-events: none;
}

.cta-banner h2 {
  color: var(--white);
  margin-bottom: 12px;
  font-size: 2.2rem;
  position: relative;
}

.cta-banner h2::after {
  display: none;
}

.cta-banner p {
  color: rgba(255,255,255,0.8);
  font-size: 1.1rem;
  margin-bottom: 32px;
  position: relative;
}

.cta-banner .btn {
  position: relative;
}

.btn-white {
  background: var(--white);
  color: var(--navy);
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(0,0,0,0.15);
}

.btn-white:hover {
  background: var(--light);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}

/* ===== Footer ===== */
.footer {
  background: var(--navy);
  color: rgba(255,255,255,0.7);
  padding: 56px 24px 28px;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 40px;
  flex-wrap: wrap;
}

.footer-brand .footer-logo {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
}

.footer-brand .footer-logo .logo-accent {
  color: var(--teal);
}

.footer-logo-img {
  max-height: 60px;
  width: auto;
  display: block;
}

.footer-links {
  display: flex;
  gap: 32px;
}

.footer-links a {
  color: rgba(255,255,255,0.7);
  transition: color 0.2s;
  font-size: 0.93rem;
  font-weight: 500;
}

.footer-links a:hover {
  color: var(--white);
}

.footer-contact {
  text-align: right;
}

.footer-contact a {
  display: block;
  color: rgba(255,255,255,0.7);
  transition: color 0.2s;
  font-size: 0.93rem;
}

.footer-contact a:hover {
  color: var(--white);
}

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 28px;
  margin-top: 40px;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.footer-disclaimer {
  font-size: 0.8rem;
  opacity: 0.7;
  margin-bottom: 8px;
  line-height: 1.6;
}

.footer-copyright {
  font-size: 0.85rem;
  opacity: 0.6;
}

/* ===== Contact Page ===== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px;
  max-width: 900px;
  margin: 0 auto;
}

.contact-card {
  background: rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 14px;
  padding: 40px 28px;
  box-shadow: 0 4px 24px rgba(9, 38, 64, 0.06);
  text-align: center;
  transition: transform 0.3s, box-shadow 0.3s, background 0.3s;
  border: 1px solid rgba(255, 255, 255, 0.5);
}

.contact-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 0 1px rgba(3, 74, 166, 0.2), 0 8px 32px rgba(3, 74, 166, 0.1);
  background: rgba(235, 241, 250, 0.7);
  border-color: rgba(3, 74, 166, 0.15);
}

.contact-card:hover .contact-icon {
  background: linear-gradient(135deg, var(--blue-light), #15a0b8);
}

.contact-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--blue), var(--teal));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  color: var(--white);
  transition: background 0.3s;
}

.contact-icon svg {
  width: 26px;
  height: 26px;
}

.contact-card h3 {
  margin-bottom: 10px;
  color: var(--navy);
}

.contact-card a {
  color: var(--blue);
  font-weight: 500;
  font-size: 1.05rem;
  transition: color 0.2s;
  word-break: break-word;
}

.contact-card a:hover {
  color: var(--teal-dark);
}

/* ===== Lightbox ===== */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.85);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}

.lightbox.open {
  opacity: 1;
  visibility: visible;
}

.lightbox-img {
  max-width: 90vw;
  max-height: 90vh;
  border-radius: 12px;
  object-fit: contain;
  transform: scale(0.9);
  transition: transform 0.3s;
}

.lightbox.open .lightbox-img {
  transform: scale(1);
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 28px;
  background: none;
  border: none;
  color: var(--white);
  font-size: 2.5rem;
  cursor: pointer;
  line-height: 1;
  opacity: 0.7;
  transition: opacity 0.2s;
}

.lightbox-close:hover {
  opacity: 1;
}

/* ===== Contact Form ===== */
.contact-form {
  max-width: 640px;
  margin: 0 auto;
}

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

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--navy);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: 'Inter', 'Segoe UI', sans-serif;
  font-size: 0.95rem;
  color: var(--text);
  transition: border-color 0.2s, box-shadow 0.2s;
  background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(3,74,166,0.1);
  outline: none;
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.contact-form .btn {
  width: 100%;
}

.form-status {
  text-align: center;
  margin-top: 16px;
  font-weight: 500;
  font-size: 0.95rem;
}

/* ===== Footer Social ===== */
.footer-social {
  display: flex;
  gap: 16px;
}

.footer-social a {
  color: rgba(255,255,255,0.5);
  transition: color 0.2s;
}

.footer-social a:hover {
  color: var(--white);
}

/* ===== Legal Content ===== */
.legal-content {
  max-width: 800px;
  margin: 0 auto;
}

.legal-content h2 {
  font-size: 1.4rem;
  margin-top: 36px;
  margin-bottom: 12px;
}

.legal-content h2::after {
  display: none;
}

.legal-content p {
  color: var(--text-light);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 16px;
}

.legal-content ul {
  margin-bottom: 16px;
  padding-left: 24px;
  list-style: disc;
}

.legal-content li {
  color: var(--text-light);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 8px;
}

.legal-content a {
  color: var(--blue);
  font-weight: 500;
}

.legal-content a:hover {
  color: var(--teal-dark);
}

/* ===== Product Ecosystem ===== */
.ecosystem-text {
  text-align: center;
  color: var(--text-light);
  font-size: 1.1rem;
  max-width: 580px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  h1 { font-size: 2.2rem; }
  h2 { font-size: 1.6rem; }

  .hero .container,
  .product-hero .container,
  .featured-product {
    flex-direction: column;
    text-align: center;
  }

  .hero-content, .product-hero-content {
    order: 1;
  }

  .hero-image, .product-slideshow, .featured-product-image {
    order: 0;
  }

  .hero h1 {
    font-size: 2.4rem;
  }

  .hero .supporting {
    margin: 0 auto 32px;
  }

  .hero-buttons {
    justify-content: center;
  }

  .product-highlights {
    justify-content: center;
    flex-wrap: wrap;
  }

  /* Mobile nav panel -- animated slide-down */
  .nav-links {
    position: absolute;
    top: 105px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 0 24px;
    gap: 0;
    box-shadow: var(--shadow-lg);
    max-height: 0;
    overflow: hidden;
    display: flex;
    transition: max-height 0.35s ease, padding 0.35s ease;
  }

  .nav-links.open {
    max-height: 400px;
    padding: 12px 24px;
  }

  .hamburger {
    display: flex;
    padding: 10px;
    min-width: 44px;
    min-height: 44px;
    justify-content: center;
    align-items: center;
  }

  .hamburger.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .hamburger.open span:nth-child(2) {
    opacity: 0;
  }

  .hamburger.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  /* Touch-target sizing & separators */
  .nav-links > a,
  .nav-dropdown > a {
    min-height: 48px;
    display: flex;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
  }

  .nav-dropdown {
    border-bottom: 1px solid var(--border);
  }

  .nav-dropdown > a {
    border-bottom: none;
  }

  /* Remove separator on last item */
  .nav-links > :last-child {
    border-bottom: none;
  }

  .nav-dropdown-menu {
    display: none;
  }

  .nav-links > a, .nav-dropdown > a { color: var(--navy); }
  .nav-links > a:hover, .nav-links > a.active,
  .nav-dropdown > a:hover, .nav-dropdown > a.active { color: var(--blue); }

  .nav-links > a::after,
  .nav-dropdown > a::after {
    display: none;
  }

  /* Overlay backdrop when menu is open */
  .nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    top: 105px;
    background: rgba(9,38,64,0.3);
    z-index: 999;
  }

  .nav-overlay.open {
    display: block;
  }

  .enhancements {
    flex-direction: column;
    align-items: center;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .footer-contact {
    text-align: center;
  }

  .footer-links {
    justify-content: center;
  }

  .footer-social {
    justify-content: center;
  }

  .trust-badges-row {
    gap: 20px;
  }

  .trust-badge {
    font-size: 0.82rem;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .suggested-use-box {
    padding: 36px 24px;
  }

  .section {
    padding: 70px 24px;
  }

  .cta-banner {
    padding: 60px 24px;
  }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.8rem; }
  .product-hero-content h1 { font-size: 1.8rem; }
  h2 { font-size: 1.35rem; }
  .highlight-badge { min-width: 100px; padding: 12px 10px; }
  .highlight-badge .number { font-size: 1.4rem; }
}

/* ===== Hero Entrance Animations ===== */
@keyframes heroSlideIn {
  0% {
    opacity: 0;
    transform: translateX(60px);
  }
  100% {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes heroFadeIn {
  0% {
    opacity: 0;
    transform: translateY(20px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-image {
  animation: heroSlideIn 1s cubic-bezier(0.22, 1, 0.36, 1) 0.2s both;
}

.hero-content {
  animation: heroFadeIn 0.8s cubic-bezier(0.22, 1, 0.36, 1) 0.1s both;
}

.product-slideshow {
  animation: heroSlideIn 1s cubic-bezier(0.22, 1, 0.36, 1) 0.2s both;
}

.product-hero-content {
  animation: heroFadeIn 0.8s cubic-bezier(0.22, 1, 0.36, 1) 0.1s both;
}

/* ===== Heading Underline Keyframes ===== */
@keyframes lineDrawIn {
  0% {
    transform: scaleX(0);
    opacity: 0;
  }
  5% {
    opacity: 1;
  }
  100% {
    transform: scaleX(1);
    opacity: 1;
  }
}

@keyframes lineShimmer {
  0% {
    background-position: -100% center;
  }
  100% {
    background-position: 200% center;
  }
}

@media print {
  .navbar, .hamburger, .lightbox, .cta-banner, .slideshow-controls, .slide-arrow { display: none; }
  body { color: #000; }
  .hero, .product-hero, .about-hero { padding-top: 24px; background: none; position: static; }
  .section { padding: 40px 0; }
}