/* ================================================
   GLYCOTIDE - styles.css
   Design: Medical Professional + Modern Gradient
   Fonts: Montserrat (headings) + Open Sans (body)
   ================================================ */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
}

* { -webkit-tap-highlight-color: transparent; }

body {
  font-family: 'Open Sans', sans-serif;
  color: #1a2540;
  background: #fff;
  overflow-x: hidden;
  line-height: 1.7;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
button { border: none; cursor: pointer; font-family: inherit; }
input, select, textarea { font-size: 16px; }

/* === CSS VARIABLES === */
:root {
  --primary: #1E40AF;
  --primary-light: #3B82F6;
  --accent: #06B6D4;
  --accent2: #10B981;
  --gold: #F59E0B;
  --danger: #EF4444;
  --dark: #0F172A;
  --text: #1e293b;
  --text-muted: #64748b;
  --white: #ffffff;
  --bg-light: #F0F7FF;
  --bg-dark: #0c1a3a;
  --grad: linear-gradient(135deg, #1E40AF 0%, #06B6D4 100%);
  --grad-alt: linear-gradient(135deg, #10B981 0%, #06B6D4 100%);
  --shadow-sm: 0 2px 8px rgba(30,64,175,0.12);
  --shadow-md: 0 8px 32px rgba(30,64,175,0.18);
  --shadow-lg: 0 20px 60px rgba(30,64,175,0.22);
  --radius: 16px;
  --radius-sm: 8px;
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
}

/* === CONTAINER === */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  width: 100%;
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4 { font-family: 'Montserrat', sans-serif; line-height: 1.2; }

.section-h2 {
  font-size: clamp(22px, 4vw, 36px);
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--dark);
}

.section-label {
  display: inline-block;
  background: linear-gradient(135deg, rgba(30,64,175,0.1), rgba(6,182,212,0.1));
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 14px;
  border: 1px solid rgba(30,64,175,0.2);
}

.section-sub {
  font-size: 17px;
  color: var(--text-muted);
  margin-bottom: 40px;
  max-width: 620px;
}

.gradient-text {
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* === BUTTONS === */
.btn-hero, .btn-primary, .btn-price, .btn-final, .btn-overlay {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  border-radius: 50px;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
  text-align: center;
  border: none;
  min-height: 56px;
  padding: 14px 32px;
  font-size: 17px;
  letter-spacing: 0.5px;
}

.btn-hero {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 8px 32px rgba(30,64,175,0.35);
  width: 100%;
  max-width: 460px;
  margin-top: 24px;
  font-size: 18px;
}
.btn-sub { font-size: 12px; font-weight: 400; opacity: 0.9; }

.btn-primary {
  background: var(--grad);
  color: #fff;
  box-shadow: var(--shadow-md);
  padding: 16px 40px;
  margin-top: 24px;
  font-size: 16px;
}

.btn-price {
  background: var(--grad);
  color: #fff;
  width: 100%;
  box-shadow: var(--shadow-sm);
  font-size: 15px;
  min-height: 50px;
  border-radius: var(--radius-sm);
  margin: 12px 0 8px;
}
.btn-price-pop {
  background: linear-gradient(135deg, #F59E0B, #EF4444);
  box-shadow: 0 8px 24px rgba(245,158,11,0.4);
  font-size: 16px;
}

.btn-final {
  background: linear-gradient(135deg, #F59E0B, #EF4444);
  color: #fff;
  font-size: 20px;
  padding: 20px 48px;
  box-shadow: 0 12px 40px rgba(245,158,11,0.45);
  width: 100%;
  max-width: 520px;
  border-radius: 50px;
  margin: 24px auto;
  display: flex;
}

.btn-overlay {
  background: var(--grad);
  color: #fff;
  width: 100%;
  font-size: 17px;
  padding: 16px 32px;
  box-shadow: var(--shadow-md);
  margin-top: 16px;
}

.btn-hero:hover, .btn-primary:hover, .btn-price:hover, .btn-final:hover, .btn-overlay:hover,
.nav-cta-btn:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-lg);
}
.btn-hero:active, .btn-primary:active, .btn-price:active, .btn-final:active {
  transform: scale(0.98);
}

/* === NAVBAR === */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(30,64,175,0.1);
  transition: box-shadow var(--transition), padding var(--transition);
}
.navbar.scrolled { box-shadow: var(--shadow-md); }

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.logo-img { width: 40px; height: 40px; object-fit: contain; border-radius: 8px; }
.logo-text {
  font-family: 'Montserrat', sans-serif;
  font-size: 22px;
  font-weight: 900;
  color: var(--primary);
  letter-spacing: -0.5px;
}
.logo-accent { color: var(--accent); }
.footer-logo { font-size: 26px; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-link {
  font-family: 'Montserrat', sans-serif;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  transition: color var(--transition);
}
.nav-link:hover { color: var(--primary); }

.nav-cta-btn {
  background: var(--grad);
  color: #fff !important;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 14px;
  padding: 10px 24px;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
  box-shadow: var(--shadow-sm);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2.5px;
  background: var(--primary);
  border-radius: 4px;
  transition: all var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}
.nav-overlay.show { opacity: 1; pointer-events: all; }

/* === HERO SECTION === */
.hero-section {
  padding: 120px 0 60px;
  background: linear-gradient(160deg, #EFF6FF 0%, #F0FDFF 50%, #ECFDF5 100%);
  position: relative;
  overflow: hidden;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero-bg-shapes { position: absolute; inset: 0; pointer-events: none; }
.shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.25;
  animation: floatShape 8s ease-in-out infinite;
}
.shape-1 { width: 400px; height: 400px; background: var(--primary-light); top: -100px; right: -100px; animation-delay: 0s; }
.shape-2 { width: 300px; height: 300px; background: var(--accent); bottom: -50px; left: -80px; animation-delay: 3s; }
.shape-3 { width: 200px; height: 200px; background: var(--accent2); top: 50%; right: 20%; animation-delay: 1.5s; }

@keyframes floatShape {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-30px) scale(1.05); }
}

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

.hero-image-wrap {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  animation: heroImgEntrance 1s ease-out forwards;
}
@keyframes heroImgEntrance {
  from { opacity: 0; transform: translateX(-60px) scale(0.9); }
  to { opacity: 1; transform: translateX(0) scale(1); }
}

.hero-glow-ring {
  position: absolute;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(6,182,212,0.15) 0%, transparent 70%);
  animation: pulse-ring 3s ease-in-out infinite;
}
@keyframes pulse-ring {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.1); opacity: 1; }
}

.hero-product-img {
  width: 320px;
  max-width: 90%;
  filter: drop-shadow(0 30px 60px rgba(30,64,175,0.25));
  animation: heroFloat 4s ease-in-out infinite;
  position: relative;
  z-index: 2;
}
@keyframes heroFloat {
  0%, 100% { transform: translateY(0px) rotate(-2deg); }
  50% { transform: translateY(-20px) rotate(2deg); }
}

.hero-badge-float {
  position: absolute;
  bottom: -10px;
  right: 10px;
  background: #fff;
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  box-shadow: var(--shadow-md);
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 13px;
  color: var(--primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  animation: badgeBounce 2s ease-in-out infinite;
  z-index: 3;
}
@keyframes badgeBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.hero-eyebrow {
  display: inline-block;
  background: linear-gradient(135deg, rgba(30,64,175,0.08), rgba(6,182,212,0.08));
  border: 1px solid rgba(30,64,175,0.2);
  color: var(--primary);
  font-family: 'Montserrat', sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 8px 20px;
  border-radius: 50px;
  margin-bottom: 16px;
  animation: fadeSlideUp 0.8s ease-out 0.2s both;
}

.hero-h1 {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(28px, 4.5vw, 52px);
  font-weight: 900;
  color: var(--dark);
  line-height: 1.15;
  margin-bottom: 20px;
  animation: fadeSlideUp 0.8s ease-out 0.4s both;
}

.hero-desc {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 12px;
  animation: fadeSlideUp 0.8s ease-out 0.6s both;
}

.hero-trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
  animation: fadeSlideUp 0.8s ease-out 0.8s both;
}
.hero-trust-row span {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
}

@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

/* === WHY SECTION === */
.why-section {
  padding: 80px 0;
  background: #fff;
  text-align: center;
}
.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.why-card {
  background: #fff;
  border: 1px solid rgba(30,64,175,0.1);
  border-radius: var(--radius);
  padding: 32px 24px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  cursor: default;
}
.why-card:hover {
  transform: scale(1.05) rotate(1deg);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}
.why-icon-wrap {
  width: 80px;
  height: 80px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-light);
  border-radius: 50%;
  font-size: 36px;
}
.why-icon { width: 60px; height: 60px; object-fit: contain; }
.why-card h3 {
  font-family: 'Montserrat', sans-serif;
  font-size: 15px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 10px;
  letter-spacing: 0.5px;
}
.why-card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }

/* === WHAT SECTION === */
.what-section {
  padding: 80px 0;
  background: var(--bg-light);
}
.what-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.what-image { position: relative; display: flex; justify-content: center; }
.what-img-bg {
  position: absolute;
  inset: -20px;
  background: var(--grad);
  border-radius: 50%;
  opacity: 0.07;
  filter: blur(30px);
}
.what-img {
  width: 100%;
  max-width: 400px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  position: relative;
  z-index: 1;
}
.what-content .section-h2 { margin-top: 8px; }
.what-content p { margin-bottom: 16px; color: var(--text-muted); font-size: 16px; }

/* === HOW IT WORKS === */
.how-section {
  padding: 80px 0;
  background: #fff;
}
.accordion-list { margin-top: 32px; display: flex; flex-direction: column; gap: 12px; }
.accordion-item {
  border: 1px solid rgba(30,64,175,0.15);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: box-shadow var(--transition);
}
.accordion-item.active { border-color: var(--primary-light); box-shadow: var(--shadow-sm); }
.accordion-header {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 18px 24px;
  background: #fff;
  text-align: left;
  font-family: 'Montserrat', sans-serif;
  font-size: 16px;
  font-weight: 700;
  color: var(--dark);
  cursor: pointer;
  border: none;
  min-height: 60px;
  transition: background var(--transition);
}
.accordion-item.active .accordion-header { background: var(--bg-light); }
.accordion-header:hover { background: var(--bg-light); }
.acc-icon { font-size: 22px; flex-shrink: 0; }
.acc-arrow {
  margin-left: auto;
  font-size: 12px;
  transition: transform var(--transition);
  flex-shrink: 0;
  color: var(--primary);
}
.accordion-item.active .acc-arrow { transform: rotate(180deg); }
.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  padding: 0 24px;
}
.accordion-item.active .accordion-body {
  max-height: 400px;
  padding: 0 24px 20px;
}
.accordion-body p { color: var(--text-muted); font-size: 15px; line-height: 1.8; }

/* === REVIEWS === */
.reviews-section {
  padding: 80px 0;
  background: linear-gradient(160deg, var(--bg-dark) 0%, #0c2340 100%);
  text-align: center;
}
.reviews-section .section-label { background: rgba(6,182,212,0.15); border-color: rgba(6,182,212,0.3); color: var(--accent); }
.reviews-section .section-h2 { color: #fff; }
.reviews-section .section-sub { color: rgba(255,255,255,0.6); margin: 0 auto 40px; }
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.review-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius);
  padding: 28px;
  text-align: left;
  backdrop-filter: blur(10px);
  transition: transform var(--transition), box-shadow var(--transition);
}
.review-card:hover { transform: translateY(-6px); box-shadow: 0 20px 40px rgba(0,0,0,0.3); }
.review-top { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.review-avatar {
  width: 56px; height: 56px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--accent);
  flex-shrink: 0;
}
.review-name { font-family: 'Montserrat', sans-serif; font-weight: 700; font-size: 15px; color: #fff; }
.review-loc { font-size: 13px; color: rgba(255,255,255,0.5); }
.review-stars { color: var(--gold); font-size: 16px; margin-top: 2px; }
.review-text { font-size: 14px; color: rgba(255,255,255,0.8); line-height: 1.8; }

/* === PRICING === */
.pricing-section, .pricing-section-2 {
  padding: 80px 0;
  background: var(--bg-light);
  text-align: center;
}
.pricing-section-2 { background: #fff; }

.countdown-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin: 20px 0 40px;
}
.countdown-label {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 16px;
  color: var(--danger);
}
.countdown-timer {
  display: flex;
  align-items: center;
  gap: 8px;
}
.countdown-block {
  background: var(--dark);
  color: #fff;
  border-radius: var(--radius-sm);
  padding: 12px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 80px;
}
.countdown-block span { font-family: 'Montserrat', sans-serif; font-size: 32px; font-weight: 900; line-height: 1; }
.countdown-block small { font-size: 10px; letter-spacing: 2px; opacity: 0.7; margin-top: 4px; }
.countdown-sep { font-size: 28px; font-weight: 900; color: var(--danger); }

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
  max-width: 1000px;
  margin: 0 auto;
}
.price-card {
  background: #fff;
  border: 2px solid rgba(30,64,175,0.12);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: transform var(--transition), box-shadow var(--transition);
  text-align: center;
  position: relative;
}
.price-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.price-card.popular {
  border-color: var(--gold);
  box-shadow: 0 12px 40px rgba(245,158,11,0.2);
  transform: scale(1.03);
  background: linear-gradient(160deg, #fffbeb 0%, #fff 100%);
}
.price-card.popular:hover { transform: scale(1.03) translateY(-8px); }

.popular-badge {
  position: absolute;
  top: -16px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--gold), #EF4444);
  color: #fff;
  font-family: 'Montserrat', sans-serif;
  font-size: 12px;
  font-weight: 800;
  padding: 6px 20px;
  border-radius: 50px;
  white-space: nowrap;
  letter-spacing: 0.5px;
}
.price-label {
  font-family: 'Montserrat', sans-serif;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 2.5px;
  color: var(--text-muted);
  margin-bottom: 4px;
  text-transform: uppercase;
}
.price-bottles { font-family: 'Montserrat', sans-serif; font-size: 20px; font-weight: 900; color: var(--dark); }
.price-supply { font-size: 13px; color: var(--text-muted); margin-bottom: 16px; }
.price-img { width: 120px; max-width: 100%; margin: 16px auto; }
.price-amount { font-family: 'Montserrat', sans-serif; font-size: 28px; font-weight: 900; color: var(--primary); margin: 8px 0 4px; }
.old-price { font-size: 18px; color: var(--text-muted); text-decoration: line-through; font-weight: 600; margin-right: 6px; }
.new-price { color: var(--danger); }
.price-per { font-size: 12px; color: var(--text-muted); }
.price-total { font-size: 15px; font-weight: 700; color: var(--text); margin-top: 4px; }
.bonus-badges { display: flex; flex-direction: column; gap: 6px; margin: 10px 0; }
.bonus-tag {
  display: inline-block;
  background: rgba(16,185,129,0.1);
  border: 1px solid rgba(16,185,129,0.3);
  color: var(--accent2);
  font-family: 'Montserrat', sans-serif;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 50px;
  letter-spacing: 0.5px;
}
.payment-logos { max-width: 140px; margin: 8px auto 0; opacity: 0.7; }
.star-rating-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 32px;
  font-family: 'Montserrat', sans-serif;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-muted);
}
.stars-img { max-width: 140px; }

/* === BONUS === */
.bonus-section { padding: 80px 0; background: linear-gradient(160deg, #0F172A, #0c2340); text-align: center; }
.bonus-section .section-label { background: rgba(6,182,212,0.15); border-color: rgba(6,182,212,0.3); color: var(--accent); }
.bonus-section .section-h2 { color: #fff; }
.bonus-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; margin-top: 40px; }
.bonus-card {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  padding: 28px;
  text-align: left;
  transition: transform var(--transition), box-shadow var(--transition);
}
.bonus-card:hover { transform: translateY(-4px); box-shadow: 0 20px 40px rgba(0,0,0,0.3); }
.bonus-img { width: 100px; height: 130px; object-fit: contain; border-radius: 8px; flex-shrink: 0; }
.bonus-num {
  font-family: 'Montserrat', sans-serif;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 2px;
  color: var(--gold);
  margin-bottom: 8px;
}
.bonus-content h3 { font-family: 'Montserrat', sans-serif; font-size: 17px; font-weight: 800; color: #fff; margin-bottom: 10px; }
.bonus-content p { font-size: 14px; color: rgba(255,255,255,0.7); line-height: 1.7; }

/* === INGREDIENTS === */
.ingredients-section { padding: 80px 0; background: var(--bg-light); }
.ingredients-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 40px;
}
.ing-card {
  background: #fff;
  border-radius: var(--radius-sm);
  padding: 24px 20px;
  border: 1px solid rgba(30,64,175,0.1);
  transition: transform var(--transition), box-shadow var(--transition);
}
.ing-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.ing-icon { font-size: 28px; margin-bottom: 10px; }
.ing-card h3 { font-family: 'Montserrat', sans-serif; font-size: 14px; font-weight: 800; color: var(--primary); margin-bottom: 8px; }
.ing-card p { font-size: 13px; color: var(--text-muted); line-height: 1.7; }

/* === SCIENCE === */
.science-section { padding: 80px 0; background: #fff; }
.science-list { display: flex; flex-direction: column; gap: 24px; margin-top: 40px; }
.science-item {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  padding: 24px;
  border: 1px solid rgba(30,64,175,0.1);
  border-radius: var(--radius-sm);
  transition: box-shadow var(--transition);
}
.science-item:hover { box-shadow: var(--shadow-sm); }
.science-num {
  font-family: 'Montserrat', sans-serif;
  font-size: 36px;
  font-weight: 900;
  color: rgba(30,64,175,0.1);
  line-height: 1;
  flex-shrink: 0;
  min-width: 50px;
}
.science-content h3 { font-family: 'Montserrat', sans-serif; font-size: 16px; font-weight: 800; color: var(--dark); margin-bottom: 10px; }
.science-content p { font-size: 15px; color: var(--text-muted); line-height: 1.8; }

/* === GUARANTEE === */
.guarantee-section { padding: 80px 0; background: var(--bg-light); }
.guarantee-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 60px;
  align-items: center;
}
.guarantee-image { display: flex; justify-content: center; }
.guarantee-img { max-width: 320px; filter: drop-shadow(0 20px 40px rgba(30,64,175,0.2)); }
.guarantee-point { display: flex; gap: 16px; margin-bottom: 24px; align-items: flex-start; }
.g-icon {
  font-size: 28px;
  width: 56px;
  height: 56px;
  background: var(--bg-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1px solid rgba(30,64,175,0.1);
}
.guarantee-point h3 { font-family: 'Montserrat', sans-serif; font-size: 16px; font-weight: 800; color: var(--dark); margin-bottom: 6px; }
.guarantee-point p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }

/* === BENEFITS === */
.benefits-section { padding: 80px 0; background: #fff; }
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 40px;
}
.benefit-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 20px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(30,64,175,0.08);
  transition: box-shadow var(--transition), transform var(--transition);
}
.benefit-item:hover { box-shadow: var(--shadow-sm); transform: translateX(4px); }
.benefit-check {
  font-size: 22px;
  flex-shrink: 0;
  margin-top: 2px;
}
.benefit-item h3 { font-family: 'Montserrat', sans-serif; font-size: 16px; font-weight: 800; color: var(--dark); margin-bottom: 6px; }
.benefit-item p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }

/* === FAQ === */
.faq-section { padding: 80px 0; background: var(--bg-light); }
.faq-list { margin-top: 32px; display: flex; flex-direction: column; gap: 10px; max-width: 860px; margin-left: auto; margin-right: auto; }
.faq-item {
  background: #fff;
  border: 1px solid rgba(30,64,175,0.12);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.faq-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  padding: 18px 24px;
  background: #fff;
  text-align: left;
  font-family: 'Montserrat', sans-serif;
  font-size: 16px;
  font-weight: 700;
  color: var(--dark);
  cursor: pointer;
  border: none;
  min-height: 60px;
  transition: background var(--transition);
}
.faq-header:hover { background: var(--bg-light); }
.faq-arrow { font-size: 12px; transition: transform var(--transition); color: var(--primary); flex-shrink: 0; }
.faq-item.open .faq-arrow { transform: rotate(180deg); }
.faq-item.open .faq-header { background: var(--bg-light); color: var(--primary); }
.faq-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  padding: 0 24px;
}
.faq-item.open .faq-body { max-height: 400px; padding: 0 24px 20px; }
.faq-body p { font-size: 15px; color: var(--text-muted); line-height: 1.8; }

/* === FINAL CTA === */
.final-cta-section {
  padding: 80px 0;
  background: linear-gradient(160deg, #EFF6FF 0%, #F0FDFF 100%);
  position: relative;
  overflow: hidden;
  text-align: center;
}
.final-cta-bg { position: absolute; inset: 0; pointer-events: none; }
.fca-shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.2;
}
.fca-shape-1 { width: 300px; height: 300px; background: var(--primary-light); top: -80px; left: -60px; }
.fca-shape-2 { width: 200px; height: 200px; background: var(--accent); bottom: -40px; right: -40px; }

.final-cta-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  position: relative;
  z-index: 1;
}

.final-cta-img {
  width: 300px;
  max-width: 80%;
  filter: drop-shadow(0 24px 48px rgba(30,64,175,0.22));
}

.animated-float {
  animation: finalFloat 4s ease-in-out infinite;
}
@keyframes finalFloat {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-18px) scale(1.03); }
}

.final-cta-content { max-width: 660px; }
.final-cta-h2 {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(24px, 4vw, 40px);
  font-weight: 900;
  color: var(--dark);
  line-height: 1.2;
  margin-bottom: 16px;
}
.final-price-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  margin: 16px 0;
}
.final-old-price { font-size: 18px; font-family: 'Montserrat', sans-serif; color: var(--text-muted); }
.final-new-price {
  font-family: 'Montserrat', sans-serif;
  font-size: 24px;
  font-weight: 900;
  color: var(--danger);
  background: rgba(239,68,68,0.08);
  padding: 4px 16px;
  border-radius: 50px;
}
.final-cta-content p { font-size: 16px; color: var(--text-muted); margin-bottom: 8px; }
.final-trust-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
}

.pulse-animation {
  animation: pulseBtn 2.5s ease-in-out infinite;
}
@keyframes pulseBtn {
  0%, 100% { box-shadow: 0 12px 40px rgba(245,158,11,0.45); }
  50% { box-shadow: 0 16px 60px rgba(245,158,11,0.7), 0 0 0 8px rgba(245,158,11,0.15); }
}

/* === FOOTER === */
.footer { background: var(--dark); color: rgba(255,255,255,0.8); padding: 60px 0 0; }
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand p { font-size: 14px; color: rgba(255,255,255,0.55); line-height: 1.7; margin-top: 12px; max-width: 320px; }
.footer-social { display: flex; gap: 12px; margin-top: 20px; }
.social-icon {
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.7);
  transition: all var(--transition);
}
.social-icon:hover { background: var(--primary-light); color: #fff; transform: translateY(-2px); border-color: transparent; }
.footer-links-col h4 {
  font-family: 'Montserrat', sans-serif;
  font-size: 14px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.footer-links-col a {
  display: block;
  font-size: 14px;
  color: rgba(255,255,255,0.55);
  padding: 4px 0;
  transition: color var(--transition);
}
.footer-links-col a:hover { color: var(--accent); }

.footer-bottom {
  padding: 28px 0;
  text-align: center;
}
.footer-disclaimer {
  font-size: 12px;
  color: rgba(255,255,255,0.4);
  line-height: 1.7;
  max-width: 800px;
  margin: 0 auto 12px;
}
.footer-copyright {
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}
.footer-copyright a { color: var(--accent); }

/* === SCROLL TO TOP === */
.scroll-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 56px;
  height: 56px;
  background: var(--grad);
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: 20px;
  cursor: pointer;
  z-index: 999;
  box-shadow: var(--shadow-md);
  transition: all var(--transition);
  opacity: 0;
  pointer-events: none;
  transform: translateY(20px);
  display: flex;
  align-items: center;
  justify-content: center;
}
.scroll-top.show { opacity: 1; pointer-events: all; transform: translateY(0); }
.scroll-top:hover { transform: translateY(-4px) scale(1.1); box-shadow: var(--shadow-lg); }

/* === PURCHASE POPUP === */
.purchase-popup {
  position: fixed;
  bottom: 24px;
  left: 24px;
  background: #fff;
  border: 1px solid rgba(30,64,175,0.15);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  box-shadow: var(--shadow-lg);
  z-index: 998;
  transform: translateX(-120%);
  transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  max-width: 300px;
  min-width: 240px;
}
.purchase-popup.show { transform: translateX(0); }
.popup-inner { display: flex; align-items: center; gap: 12px; }
.popup-emoji { font-size: 24px; }
.popup-text { font-size: 13px; line-height: 1.5; color: var(--text); }
.popup-text strong { color: var(--primary); font-family: 'Montserrat', sans-serif; font-size: 14px; }
.popup-close {
  position: absolute;
  top: 6px;
  right: 8px;
  font-size: 12px;
  cursor: pointer;
  color: var(--text-muted);
  background: none;
  border: none;
  padding: 4px;
  line-height: 1;
}

/* === OVERLAY POPUP === */
.overlay-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 2000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.overlay-backdrop.show { opacity: 1; pointer-events: all; }
.overlay-popup {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.9);
  z-index: 2001;
  background: #fff;
  border-radius: var(--radius);
  padding: 48px 36px 36px;
  max-width: 440px;
  width: calc(100% - 40px);
  text-align: center;
  opacity: 0;
  pointer-events: none;
  transition: all 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  box-shadow: 0 40px 100px rgba(0,0,0,0.4);
}
.overlay-popup.show { opacity: 1; pointer-events: all; transform: translate(-50%, -50%) scale(1); }
.overlay-close {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(0,0,0,0.06);
  border: none;
  border-radius: 50%;
  width: 36px;
  height: 36px;
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}
.overlay-close:hover { background: rgba(0,0,0,0.12); }
.overlay-close-link { color: var(--text-muted); text-decoration: none; }
.overlay-emoji { font-size: 44px; margin-bottom: 12px; }
.overlay-popup h3 {
  font-family: 'Montserrat', sans-serif;
  font-size: 24px;
  font-weight: 900;
  color: var(--dark);
  line-height: 1.2;
  margin-bottom: 12px;
}
.overlay-popup p { font-size: 15px; color: var(--text-muted); line-height: 1.7; }
.overlay-small { font-size: 12px; margin-top: 12px; color: var(--text-muted); }

/* === FADE-UP ANIMATION === */
.fade-up, .fade-left, .fade-right {
  opacity: 0;
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-up { transform: translateY(40px); transition-delay: var(--delay, 0s); }
.fade-left { transform: translateX(-40px); }
.fade-right { transform: translateX(40px); }
.fade-up.visible, .fade-left.visible, .fade-right.visible {
  opacity: 1;
  transform: translate(0);
}

/* ===================================
   RESPONSIVE / MOBILE STYLES
   =================================== */

@media (max-width: 1199px) {
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .ingredients-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 991px) {
  .hero-container { grid-template-columns: 1fr; text-align: center; gap: 40px; }
  .hero-image-wrap { order: -1; }
  .hero-product-img { width: 260px; }
  .hero-glow-ring { width: 280px; height: 280px; }
  .hero-trust-row { justify-content: center; }
  .btn-hero { margin: 24px auto 0; }

  .what-grid { grid-template-columns: 1fr; gap: 32px; }
  .what-image { order: -1; }
  .what-img { max-width: 320px; margin: 0 auto; }

  .guarantee-grid { grid-template-columns: 1fr; gap: 32px; }
  .guarantee-image { order: -1; }

  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-brand p { max-width: 100%; }
}

@media (max-width: 768px) {
  .navbar .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    height: 100vh;
    width: 280px;
    background: #fff;
    flex-direction: column;
    justify-content: center;
    gap: 28px;
    padding: 80px 40px 40px;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    transition: right 0.35s cubic-bezier(0.4,0,0.2,1);
  }
  .navbar .nav-links.open { right: 0; }
  .nav-link { font-size: 18px; }
  .nav-cta-btn { width: 100%; text-align: center; justify-content: center; }
  .hamburger { display: flex; }

  section { padding: 60px 0; }

  .why-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .why-card { padding: 24px 16px; }

  .reviews-grid { grid-template-columns: 1fr; }

  .pricing-grid { grid-template-columns: 1fr; max-width: 380px; }
  .price-card.popular { transform: scale(1); }
  .price-card.popular:hover { transform: translateY(-8px); }

  .bonus-grid { grid-template-columns: 1fr; }
  .bonus-card { flex-direction: column; align-items: center; text-align: center; }

  .ingredients-grid { grid-template-columns: repeat(2, 1fr); }

  .benefits-grid { grid-template-columns: 1fr; }

  .footer-top { grid-template-columns: 1fr; text-align: center; }
  .footer-brand { grid-column: 1; }
  .footer-social { justify-content: center; }
  .footer-links-col a { text-align: center; }

  .scroll-top { bottom: 24px; right: 16px; width: 48px; height: 48px; font-size: 18px; }
  .purchase-popup { left: 12px; right: 12px; max-width: none; min-width: 0; bottom: 16px; }
}

@media (max-width: 576px) {
  html { font-size: 15px; }

  .hero-section { padding: 100px 0 50px; }
  .hero-product-img { width: 220px; }
  .hero-h1 { font-size: 26px; }

  .why-grid { grid-template-columns: 1fr; }

  .countdown-block { min-width: 64px; padding: 10px 16px; }
  .countdown-block span { font-size: 26px; }

  .pricing-grid { max-width: 100%; }

  .ingredients-grid { grid-template-columns: 1fr; }

  .science-item { flex-direction: column; gap: 8px; }
  .science-num { font-size: 24px; }

  .btn-final { font-size: 16px; padding: 16px 24px; }

  .overlay-popup { padding: 40px 24px 28px; }
  .overlay-popup h3 { font-size: 20px; }
}

@media (max-width: 380px) {
  .hero-h1 { font-size: 22px; }
  .section-h2 { font-size: 20px; }
  .hero-trust-row { flex-direction: column; align-items: center; gap: 8px; }
}

/* === REDUCED MOTION === */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* === PRINT === */
@media print {
  .navbar, .scroll-top, .purchase-popup, .overlay-popup, .overlay-backdrop { display: none !important; }
}