/* ===================================================
   HARMOBRAIN - Premium Brain Health Landing Page
   Design: Medical Professional + Luxury Hybrid
   Primary: Deep Navy #0A1628 | Accent: Electric Cyan #00D4FF | Gold: #FFD700
   Fonts: Montserrat (headings) + Open Sans (body)
=================================================== */

/* === CSS VARIABLES === */
:root {
  --primary: #0A1628;
  --primary-mid: #132240;
  --secondary: #00D4FF;
  --secondary-dark: #0099CC;
  --accent-gold: #FFD700;
  --accent-green: #00C896;
  --text-dark: #1a1a2e;
  --text-mid: #3d4456;
  --text-light: #6b7280;
  --white: #ffffff;
  --bg-light: #f0f4ff;
  --bg-lighter: #f8faff;
  --card-bg: #ffffff;
  --border: #e2e8f5;
  --shadow-sm: 0 2px 8px rgba(10,22,40,0.08);
  --shadow-md: 0 8px 30px rgba(10,22,40,0.12);
  --shadow-lg: 0 20px 60px rgba(10,22,40,0.18);
  --shadow-cyan: 0 8px 30px rgba(0,212,255,0.25);
  --radius: 16px;
  --radius-lg: 24px;
  --gradient: linear-gradient(135deg, #0A1628 0%, #132240 50%, #1a3a6b 100%);
  --gradient-accent: linear-gradient(135deg, #00D4FF, #0099CC);
  --gradient-gold: linear-gradient(135deg, #FFD700, #FFA500);
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
}

/* === 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%;
}

body {
  font-family: 'Open Sans', sans-serif;
  color: var(--text-dark);
  background: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-tap-highlight-color: transparent;
}

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

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }

/* === TYPOGRAPHY === */
h1,h2,h3,h4,h5,h6 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  line-height: 1.25;
}

/* === UTILITIES === */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}
.section-title {
  font-size: clamp(24px, 4vw, 38px);
  font-weight: 800;
  text-align: center;
  color: var(--primary);
  margin-bottom: 12px;
}
.section-subtitle {
  text-align: center;
  color: var(--text-light);
  font-size: clamp(15px, 2vw, 18px);
  margin-bottom: 48px;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}
.text-left { text-align: left; }
.accent { color: var(--secondary); }

/* === PURCHASE NOTIFICATION === */
.purchase-notif {
  position: fixed;
  bottom: 24px;
  left: 16px;
  z-index: 9999;
  background: var(--white);
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.15);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 300px;
  transform: translateX(-120%);
  transition: transform 0.4s cubic-bezier(0.34,1.56,0.64,1);
  border-left: 4px solid var(--accent-green);
}
.purchase-notif.show { transform: translateX(0); }
.notif-inner { display: flex; align-items: center; gap: 10px; width: 100%; }
.notif-avatar { width: 40px; height: 40px; border-radius: 50%; object-fit: cover; flex-shrink: 0; }
.notif-text { font-size: 13px; color: var(--text-dark); flex: 1; }
.notif-name { font-weight: 700; }
.notif-close { background: none; border: none; cursor: pointer; color: var(--text-light); font-size: 16px; padding: 4px; flex-shrink: 0; min-width: 28px; min-height: 28px; display: flex; align-items: center; justify-content: center; border-radius: 50%; }
.notif-close:hover { background: #f0f0f0; }

/* === EXIT POPUP === */
.exit-popup-overlay {
  position: fixed; inset: 0; z-index: 10000;
  background: rgba(10,22,40,0.75);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden;
  transition: var(--transition);
  padding: 20px;
}
.exit-popup-overlay.active { opacity: 1; visibility: visible; }
.exit-popup-box {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px 32px 32px;
  max-width: 460px;
  width: 100%;
  position: relative;
  text-align: center;
  animation: popupIn 0.4s cubic-bezier(0.34,1.56,0.64,1);
}
@keyframes popupIn { from { transform: scale(0.8) translateY(20px); opacity: 0; } to { transform: scale(1) translateY(0); opacity: 1; } }
.exit-popup-close {
  position: absolute; top: 12px; right: 12px;
  background: var(--bg-light); border: none; border-radius: 8px;
  padding: 6px 12px; cursor: pointer; font-size: 12px;
  color: var(--secondary-dark); font-weight: 700; font-family: 'Montserrat', sans-serif;
  min-width: 44px; min-height: 44px;
}
.exit-popup-badge {
  display: inline-block; background: var(--gradient-accent);
  color: var(--white); padding: 6px 18px; border-radius: 50px;
  font-size: 13px; font-weight: 700; font-family: 'Montserrat', sans-serif;
  margin-bottom: 16px;
}
.exit-popup-img { max-width: 160px; margin: 0 auto 16px; }
.exit-popup-title { font-size: 22px; font-weight: 800; color: var(--primary); margin-bottom: 12px; }
.exit-popup-text { font-size: 15px; color: var(--text-mid); margin-bottom: 20px; }
.exit-popup-cta {
  display: block; background: var(--gradient-accent);
  color: var(--white); padding: 16px 28px; border-radius: 50px;
  font-weight: 800; font-family: 'Montserrat', sans-serif;
  font-size: 16px; margin-bottom: 12px;
  transition: var(--transition); min-height: 52px; display: flex; align-items: center; justify-content: center;
}
.exit-popup-cta:hover { transform: scale(1.03); box-shadow: var(--shadow-cyan); }
.exit-popup-skip { font-size: 12px; color: var(--text-light); cursor: pointer; }

/* =====================
   NAVIGATION
===================== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(10,22,40,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0,212,255,0.15);
  transition: var(--transition);
}
.navbar.scrolled { box-shadow: 0 4px 24px rgba(0,0,0,0.3); }
.nav-container {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px; max-width: 1200px; margin: 0 auto;
}
.nav-logo {
  display: flex; align-items: center; gap: 10px; text-decoration: none;
}
.logo-img { width: 40px; height: 40px; border-radius: 8px; object-fit: contain; }
.logo-text {
  font-family: 'Montserrat', sans-serif; font-weight: 800;
  font-size: 20px; color: var(--white);
  background: var(--gradient-accent);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.nav-links {
  display: flex; align-items: center; gap: 8px;
}
.nav-link {
  color: rgba(255,255,255,0.8); font-size: 14px; font-weight: 600;
  padding: 8px 14px; border-radius: 8px; transition: var(--transition);
  font-family: 'Montserrat', sans-serif;
  white-space: nowrap;
}
.nav-link:hover { color: var(--secondary); background: rgba(0,212,255,0.1); }
.nav-cta-btn {
  background: var(--gradient-accent); color: var(--white) !important;
  padding: 10px 20px; border-radius: 50px; font-weight: 700;
  font-family: 'Montserrat', sans-serif; font-size: 14px;
  min-height: 44px; display: flex; align-items: center;
  transition: var(--transition);
}
.nav-cta-btn:hover { transform: scale(1.05); box-shadow: var(--shadow-cyan); }
.hamburger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer;
  padding: 8px; min-width: 48px; min-height: 48px;
  align-items: center; justify-content: center;
}
.hamburger span {
  display: block; width: 24px; height: 2px;
  background: var(--white); border-radius: 2px;
  transition: var(--transition);
}
.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); }

/* =====================
   HERO SECTION
===================== */
.hero-section {
  min-height: 100vh;
  background: var(--gradient);
  position: relative; overflow: hidden;
  padding: 120px 0 80px;
  display: flex; align-items: center;
}
.hero-particles {
  position: absolute; inset: 0; pointer-events: none;
}
.hero-container {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px;
  align-items: center; position: relative; z-index: 2;
}
.hero-image-wrap {
  position: relative; display: flex;
  align-items: center; justify-content: center;
}
.hero-glow-ring {
  position: absolute;
  width: 380px; height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,212,255,0.2) 0%, transparent 70%);
  animation: pulseGlow 3s ease-in-out infinite;
}
@keyframes pulseGlow {
  0%,100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.1); opacity: 1; }
}
.hero-product-img {
  width: 100%; max-width: 380px;
  filter: drop-shadow(0 30px 60px rgba(0,212,255,0.4));
  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;
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--white); font-size: 12px; font-weight: 700;
  font-family: 'Montserrat', sans-serif;
  padding: 8px 14px; border-radius: 50px;
  white-space: nowrap; z-index: 3;
}
.hero-badge-1 { top: 15%; left: -10px; animation: badgeFloat 3.5s ease-in-out infinite; }
.hero-badge-2 { bottom: 20%; right: -10px; animation: badgeFloat 3.5s ease-in-out infinite 1s; }
.hero-badge-3 { top: 60%; left: -15px; animation: badgeFloat 3.5s ease-in-out infinite 2s; }
@keyframes badgeFloat {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
.hero-content { color: var(--white); }
.hero-tag {
  display: inline-block; background: var(--gradient-gold);
  color: var(--primary); padding: 6px 16px; border-radius: 50px;
  font-size: 12px; font-weight: 800; font-family: 'Montserrat', sans-serif;
  margin-bottom: 20px; letter-spacing: 0.5px;
  animation: fadeInDown 0.8s ease forwards;
}
.hero-h1 {
  font-size: clamp(28px, 4vw, 52px); font-weight: 900; margin-bottom: 20px;
  line-height: 1.15;
  animation: fadeInUp 0.8s ease 0.2s both;
}
.hero-highlight {
  background: var(--gradient-accent);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hero-desc {
  font-size: clamp(15px, 1.8vw, 17px); opacity: 0.9; margin-bottom: 16px; line-height: 1.75;
  animation: fadeInUp 0.8s ease 0.4s both;
}
.hero-stars {
  margin-bottom: 24px; font-size: 15px; opacity: 0.9;
  animation: fadeInUp 0.8s ease 0.5s both;
}
.btn-hero {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--gradient-accent); color: var(--white);
  padding: 18px 36px; border-radius: 50px;
  font-weight: 800; font-family: 'Montserrat', sans-serif;
  font-size: clamp(15px, 2vw, 18px); min-height: 56px;
  min-width: 280px; text-align: center;
  box-shadow: 0 8px 32px rgba(0,212,255,0.4);
  transition: var(--transition);
  animation: fadeInUp 0.8s ease 0.6s both;
  border: none; cursor: pointer; text-decoration: none;
}
.btn-hero:hover { transform: scale(1.05) translateY(-2px); box-shadow: 0 16px 48px rgba(0,212,255,0.5); }
.hero-guarantee {
  margin-top: 16px; font-size: 13px; opacity: 0.75;
  animation: fadeInUp 0.8s ease 0.7s both;
}

@keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeInDown { from { opacity: 0; transform: translateY(-20px); } to { opacity: 1; transform: translateY(0); } }

/* =====================
   WHY CHOOSE SECTION
===================== */
.why-section { padding: 80px 0; background: var(--bg-lighter); }
.why-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
  margin-top: 48px;
}
.why-card {
  background: var(--white); border-radius: var(--radius);
  padding: 32px 24px; text-align: center;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative; overflow: hidden;
}
.why-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--gradient-accent);
}
.why-card:hover { transform: scale(1.05) rotate(1deg); box-shadow: var(--shadow-lg); }
.why-card-icon { margin-bottom: 18px; }
.why-card-icon img { width: 70px; height: 70px; margin: 0 auto; object-fit: contain; }
.why-card h3 { font-size: 15px; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
.why-card p { font-size: 14px; color: var(--text-light); line-height: 1.65; }

/* =====================
   WHAT IS SECTION
===================== */
.what-is-section { padding: 80px 0; background: var(--white); }
.what-is-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
}
.what-is-img-wrap { position: relative; }
.what-is-img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
}
.what-is-badge {
  position: absolute; bottom: 20px; left: 20px;
  background: var(--gradient-accent); color: var(--white);
  padding: 8px 20px; border-radius: 50px;
  font-size: 13px; font-weight: 700; font-family: 'Montserrat', sans-serif;
}
.what-is-content p { color: var(--text-mid); margin-bottom: 18px; font-size: 16px; }
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--gradient-accent); color: var(--white);
  padding: 16px 32px; border-radius: 50px;
  font-weight: 700; font-family: 'Montserrat', sans-serif;
  font-size: 16px; min-height: 52px; min-width: 220px;
  transition: var(--transition); border: none; cursor: pointer;
  box-shadow: var(--shadow-cyan);
}
.btn-primary:hover { transform: scale(1.05); box-shadow: 0 16px 40px rgba(0,212,255,0.4); }

/* =====================
   HOW IT WORKS
===================== */
.how-section { padding: 80px 0; background: var(--bg-light); }
.accordion-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.accordion-item {
  background: var(--white); border-radius: var(--radius);
  border: 1px solid var(--border); overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.accordion-header {
  width: 100%; display: flex; align-items: center; gap: 16px;
  padding: 20px 24px; background: none; border: none; cursor: pointer;
  text-align: left; transition: var(--transition);
  min-height: 64px; font-family: 'Montserrat', sans-serif;
}
.accordion-header:hover { background: var(--bg-light); }
.acc-num {
  font-size: 13px; font-weight: 800; color: var(--secondary);
  background: rgba(0,212,255,0.1); padding: 4px 10px; border-radius: 6px;
  flex-shrink: 0;
}
.acc-title { flex: 1; font-weight: 700; font-size: clamp(14px, 1.8vw, 16px); color: var(--primary); }
.acc-icon { font-size: 22px; font-weight: 300; color: var(--secondary); transition: var(--transition); flex-shrink: 0; }
.accordion-header.active .acc-icon { transform: rotate(45deg); }
.accordion-body {
  max-height: 0; overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0.4,0,0.2,1), padding 0.3s;
  padding: 0 24px;
}
.accordion-body.open { max-height: 300px; padding: 0 24px 20px; }
.accordion-body p { color: var(--text-mid); font-size: 15px; line-height: 1.7; }

/* =====================
   REVIEWS
===================== */
.reviews-section { padding: 80px 0; background: var(--white); }
.reviews-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 40px; }
.review-card {
  background: var(--bg-lighter); border-radius: var(--radius);
  padding: 28px; border: 1px solid var(--border);
  box-shadow: var(--shadow-sm); transition: var(--transition);
}
.review-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.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(--secondary); flex-shrink: 0; }
.review-name { font-weight: 700; font-family: 'Montserrat', sans-serif; color: var(--primary); }
.review-loc { font-size: 12px; color: var(--text-light); }
.review-stars { font-size: 14px; }
.review-text { font-size: 15px; color: var(--text-mid); line-height: 1.7; margin-bottom: 12px; }
.review-verified { font-size: 12px; color: var(--accent-green); font-weight: 600; }
.reviews-rating-bar { text-align: center; }
.five-star-img { max-width: 200px; margin: 0 auto 10px; }
.reviews-rating-bar p { color: var(--text-mid); font-size: 16px; }

/* =====================
   PRICING
===================== */
.pricing-section { padding: 80px 0; background: var(--gradient); }
.pricing-section-2 { margin-top: 0; }
.pricing-section .section-title { color: var(--white); }
.pricing-section .section-subtitle { color: rgba(255,255,255,0.7); }

/* Timer */
.timer-wrap { text-align: center; margin-bottom: 40px; }
.timer-label { color: rgba(255,255,255,0.85); font-size: 16px; font-weight: 600; margin-bottom: 12px; font-family: 'Montserrat', sans-serif; }
.timer-display {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(0,0,0,0.3); border: 1px solid rgba(0,212,255,0.4);
  border-radius: 16px; padding: 16px 28px;
}
.timer-block { text-align: center; }
.timer-block span { display: block; font-size: clamp(32px, 5vw, 52px); font-weight: 900; color: var(--secondary); font-family: 'Montserrat', sans-serif; line-height: 1; }
.timer-block small { font-size: 11px; color: rgba(255,255,255,0.6); font-weight: 600; letter-spacing: 2px; }
.timer-colon { font-size: 40px; font-weight: 900; color: var(--secondary); margin: 0 4px; line-height: 1; padding-bottom: 14px; }

/* Pricing Grid */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.pricing-card {
  background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.15);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-radius: var(--radius-lg); padding: 32px 24px;
  text-align: center; color: var(--white);
  position: relative; transition: var(--transition);
}
.pricing-card:hover { transform: translateY(-6px); box-shadow: 0 20px 60px rgba(0,0,0,0.3); }
.pricing-popular {
  background: rgba(0,212,255,0.15);
  border-color: var(--secondary);
  box-shadow: 0 0 40px rgba(0,212,255,0.25);
  transform: scale(1.03);
}
.pricing-popular:hover { transform: scale(1.03) translateY(-6px); }
.popular-badge {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--gradient-gold); color: var(--primary);
  padding: 6px 20px; border-radius: 50px;
  font-size: 12px; font-weight: 800; font-family: 'Montserrat', sans-serif;
  white-space: nowrap;
}
.pricing-label { font-size: 11px; font-weight: 800; letter-spacing: 2px; color: var(--secondary); margin-bottom: 6px; font-family: 'Montserrat', sans-serif; }
.pricing-bottles { font-size: 20px; font-weight: 800; font-family: 'Montserrat', sans-serif; margin-bottom: 4px; }
.pricing-supply { font-size: 13px; opacity: 0.7; margin-bottom: 20px; }
.pricing-img { max-width: 130px; margin: 0 auto 20px; }
.pricing-price { font-size: clamp(28px, 4vw, 40px); font-weight: 900; font-family: 'Montserrat', sans-serif; margin-bottom: 6px; color: var(--secondary); }
.pricing-price small { font-size: 16px; opacity: 0.8; }
.pricing-total { font-size: 15px; margin-bottom: 16px; opacity: 0.85; }
.pricing-total s { opacity: 0.5; }
.pricing-perks { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.pricing-perks span {
  display: inline-block; background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  padding: 6px 12px; border-radius: 50px;
  font-size: 12px; font-weight: 600; font-family: 'Montserrat', sans-serif;
}
.btn-pricing {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  background: var(--gradient-accent); color: var(--white);
  padding: 14px 20px; border-radius: 50px;
  font-weight: 700; font-family: 'Montserrat', sans-serif;
  font-size: 15px; min-height: 52px; width: 100%;
  transition: var(--transition); border: none; cursor: pointer;
  margin-bottom: 14px;
}
.btn-pricing:hover { transform: scale(1.05); box-shadow: var(--shadow-cyan); }
.btn-pricing-popular { background: var(--gradient-gold); color: var(--primary); }
.btn-pricing-popular:hover { box-shadow: 0 8px 30px rgba(255,215,0,0.4); }
.atc-img { width: 24px; height: 24px; object-fit: contain; flex-shrink: 0; }
.cards-img { max-width: 180px; margin: 0 auto; opacity: 0.7; }
.pricing-stars { text-align: center; margin-top: 40px; }
.pricing-stars img { max-width: 200px; margin: 0 auto; }

/* =====================
   BONUS SECTION
===================== */
.bonus-section { padding: 80px 0; background: var(--bg-lighter); }
.bonus-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; margin-bottom: 40px; }
.bonus-card {
  background: var(--white); border-radius: var(--radius);
  padding: 32px; border: 1px solid var(--border);
  box-shadow: var(--shadow-sm); text-align: center; position: relative;
  transition: var(--transition);
}
.bonus-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.bonus-ribbon {
  display: inline-block; background: var(--gradient-gold);
  color: var(--primary); padding: 6px 20px; border-radius: 50px;
  font-size: 12px; font-weight: 800; font-family: 'Montserrat', sans-serif;
  margin-bottom: 20px;
}
.bonus-img { max-width: 200px; margin: 0 auto 20px; border-radius: 12px; }
.bonus-card h3 { font-size: 18px; color: var(--primary); margin-bottom: 12px; }
.bonus-card p { font-size: 15px; color: var(--text-mid); }
.bonus-cta-wrap { text-align: center; }

/* =====================
   INGREDIENTS
===================== */
.ingredients-section { padding: 80px 0; background: var(--white); }
.ingredients-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.ingredient-card {
  background: var(--bg-lighter); border-radius: var(--radius);
  padding: 24px; border: 1px solid var(--border);
  box-shadow: var(--shadow-sm); transition: var(--transition);
}
.ingredient-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--secondary); }
.ing-icon { font-size: 32px; margin-bottom: 12px; }
.ingredient-card h3 { font-size: 16px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.ingredient-card p { font-size: 14px; color: var(--text-mid); line-height: 1.65; }

/* =====================
   SCIENTIFIC EVIDENCE
===================== */
.science-section { padding: 80px 0; background: var(--bg-light); }
.science-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.science-card {
  background: var(--white); border-radius: var(--radius);
  padding: 28px; border: 1px solid var(--border);
  box-shadow: var(--shadow-sm); position: relative; overflow: hidden;
  transition: var(--transition);
}
.science-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.science-num {
  position: absolute; top: 16px; right: 20px;
  font-size: 40px; font-weight: 900; color: rgba(0,212,255,0.1);
  font-family: 'Montserrat', sans-serif;
}
.science-card h3 { font-size: 17px; font-weight: 700; color: var(--primary); margin-bottom: 12px; }
.science-card p { font-size: 15px; color: var(--text-mid); line-height: 1.7; margin-bottom: 12px; }
.science-ref { font-size: 12px; color: var(--secondary-dark); font-weight: 600; }

/* =====================
   GUARANTEE
===================== */
.guarantee-section { padding: 80px 0; background: var(--white); }
.guarantee-grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 60px; align-items: center; }
.guarantee-img-wrap { text-align: center; }
.guarantee-img { max-width: 300px; margin: 0 auto; filter: drop-shadow(0 20px 40px rgba(0,0,0,0.1)); }
.guarantee-content p { color: var(--text-mid); margin-bottom: 24px; font-size: 16px; }
.guarantee-points { display: flex; flex-direction: column; gap: 20px; margin-bottom: 32px; }
.guarantee-point { display: flex; gap: 16px; align-items: flex-start; }
.gp-icon { font-size: 28px; flex-shrink: 0; }
.guarantee-point h4 { font-size: 16px; font-weight: 700; color: var(--primary); margin-bottom: 6px; }
.guarantee-point p { font-size: 14px; color: var(--text-mid); margin: 0; }

/* =====================
   BENEFITS
===================== */
.benefits-section { padding: 80px 0; background: var(--bg-lighter); }
.benefits-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; max-width: 900px; margin: 0 auto; }
.benefit-item {
  display: flex; gap: 16px; align-items: flex-start;
  background: var(--white); border-radius: var(--radius);
  padding: 20px; border: 1px solid var(--border);
  box-shadow: var(--shadow-sm); transition: var(--transition);
}
.benefit-item:hover { transform: translateX(4px); box-shadow: var(--shadow-md); }
.benefit-check {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--gradient-accent); color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 16px; flex-shrink: 0;
}
.benefit-item h4 { font-size: 15px; font-weight: 700; color: var(--primary); margin-bottom: 6px; }
.benefit-item p { font-size: 13px; color: var(--text-light); line-height: 1.6; margin: 0; }

/* =====================
   FAQ
===================== */
.faq-section { padding: 80px 0; background: var(--bg-light); }
.faq-list { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: var(--white); border-radius: var(--radius);
  border: 1px solid var(--border); overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.faq-header {
  width: 100%; display: flex; justify-content: space-between; align-items: center;
  padding: 20px 24px; background: none; border: none;
  cursor: pointer; text-align: left; font-weight: 700;
  font-family: 'Montserrat', sans-serif; font-size: clamp(14px,1.8vw,16px);
  color: var(--primary); min-height: 60px; gap: 12px;
  transition: var(--transition);
}
.faq-header:hover { background: var(--bg-light); }
.faq-icon { font-size: 22px; color: var(--secondary); flex-shrink: 0; transition: var(--transition); }
.faq-header.active .faq-icon { transform: rotate(45deg); color: var(--primary); }
.faq-body {
  max-height: 0; overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0.4,0,0.2,1), padding 0.3s;
  padding: 0 24px;
}
.faq-body.open { max-height: 300px; padding: 0 24px 20px; }
.faq-body p { color: var(--text-mid); font-size: 15px; line-height: 1.7; }

/* =====================
   FINAL CTA SECTION
===================== */
.final-cta-section {
  padding: 100px 0; background: var(--gradient);
  position: relative; overflow: hidden;
}
.final-cta-particles { position: absolute; inset: 0; pointer-events: none; }
.final-cta-inner {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px;
  align-items: center; position: relative; z-index: 2;
}
.final-cta-img-wrap { position: relative; text-align: center; }
.final-glow {
  position: absolute; inset: -40px;
  background: radial-gradient(circle, rgba(0,212,255,0.25) 0%, transparent 70%);
  animation: pulseGlow 3s ease-in-out infinite;
}
.final-cta-img {
  max-width: 360px; margin: 0 auto;
  filter: drop-shadow(0 30px 60px rgba(0,212,255,0.4));
  animation: heroFloat 4s ease-in-out infinite;
  position: relative; z-index: 1;
}
.final-cta-content { color: var(--white); }
.final-cta-badge {
  display: inline-block; background: var(--gradient-gold);
  color: var(--primary); padding: 8px 20px; border-radius: 50px;
  font-size: 13px; font-weight: 800; font-family: 'Montserrat', sans-serif;
  margin-bottom: 20px;
}
.final-cta-h2 {
  font-size: clamp(24px, 3.5vw, 40px); font-weight: 900; margin-bottom: 20px;
  line-height: 1.2;
}
.final-cta-pricing { margin-bottom: 16px; }
.final-old-price { font-size: 16px; opacity: 0.65; display: block; margin-bottom: 4px; }
.final-new-price { font-size: clamp(28px, 4vw, 42px); font-weight: 900; color: var(--secondary); font-family: 'Montserrat', sans-serif; display: block; }
.final-cta-desc { font-size: 16px; opacity: 0.85; margin-bottom: 28px; line-height: 1.7; }
.btn-final-cta {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--gradient-gold); color: var(--primary);
  padding: 20px 40px; border-radius: 50px;
  font-weight: 800; font-family: 'Montserrat', sans-serif;
  font-size: clamp(16px, 2vw, 20px); min-height: 60px;
  transition: var(--transition); box-shadow: 0 8px 32px rgba(255,215,0,0.4);
  border: none; cursor: pointer; text-align: center;
  width: 100%; max-width: 420px;
}
.pulse-btn { animation: pulseCta 2s ease-in-out infinite; }
@keyframes pulseCta {
  0%,100% { box-shadow: 0 8px 32px rgba(255,215,0,0.4), 0 0 0 0 rgba(255,215,0,0.4); }
  50% { box-shadow: 0 12px 48px rgba(255,215,0,0.6), 0 0 0 12px rgba(255,215,0,0); }
}
.btn-final-cta:hover { transform: scale(1.05) translateY(-3px); }
.final-cta-icons {
  display: flex; gap: 20px; margin-top: 20px; flex-wrap: wrap;
  font-size: 13px; opacity: 0.8;
}

/* =====================
   FOOTER
===================== */
.footer { background: #060e1e; color: rgba(255,255,255,0.7); padding: 60px 0 0; }
.footer-top {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px;
  padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand { }
.footer-logo { width: 50px; height: 50px; border-radius: 10px; margin-bottom: 10px; }
.footer-brand-name { font-family: 'Montserrat', sans-serif; font-weight: 800; font-size: 22px; color: var(--white); display: block; margin-bottom: 8px; }
.footer-tagline { font-size: 14px; }
.footer-links-col h4 { color: var(--white); font-family: 'Montserrat', sans-serif; font-size: 14px; font-weight: 700; margin-bottom: 16px; }
.footer-links-col a,
.legal-link {
  display: block; color: rgba(255,255,255,0.6);
  font-size: 14px; margin-bottom: 10px; transition: var(--transition);
}
.footer-links-col a:hover, .legal-link:hover { color: var(--secondary); }
.footer-social-col h4 { color: var(--white); font-family: 'Montserrat', sans-serif; font-size: 14px; font-weight: 700; margin-bottom: 16px; }
.social-icons { display: flex; gap: 12px; flex-wrap: wrap; }
.social-icon {
  width: 40px; height: 40px; border-radius: 8px;
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.1);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.7); transition: var(--transition);
  min-width: 44px; min-height: 44px;
}
.social-icon:hover { background: var(--secondary); color: var(--white); transform: translateY(-3px); }
.footer-disclaimer {
  padding: 24px 0; border-bottom: 1px solid rgba(255,255,255,0.1);
  font-size: 12px; color: rgba(255,255,255,0.4); line-height: 1.7;
}
.footer-bottom { padding: 20px 0; text-align: center; font-size: 13px; color: rgba(255,255,255,0.4); }

/* =====================
   SCROLL TO TOP
===================== */
.scroll-top-btn {
  position: fixed; bottom: 28px; right: 20px; z-index: 999;
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--gradient-accent); color: var(--white);
  border: none; cursor: pointer; font-size: 22px; font-weight: 700;
  box-shadow: var(--shadow-cyan); display: none;
  align-items: center; justify-content: center;
  transition: var(--transition);
}
.scroll-top-btn.show { display: flex; }
.scroll-top-btn:hover { transform: scale(1.1) translateY(-3px); }

/* =====================
   FADE UP ANIMATION
===================== */
.fade-up {
  opacity: 0; transform: translateY(40px);
  transition: opacity 0.6s ease calc(var(--delay, 0s)), transform 0.6s ease calc(var(--delay, 0s));
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* =====================
   RESPONSIVE - TABLET
===================== */
@media (max-width: 1024px) {
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .ingredients-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 30px; }
}

@media (max-width: 900px) {
  .hero-container { grid-template-columns: 1fr; gap: 40px; }
  .hero-image-wrap { order: -1; }
  .hero-h1 { text-align: center; }
  .hero-desc, .hero-tag, .hero-stars, .hero-guarantee { text-align: center; }
  .btn-hero { width: 100%; }
  .hero-badge-1, .hero-badge-2, .hero-badge-3 { display: none; }

  .what-is-grid { grid-template-columns: 1fr; gap: 36px; }
  .what-is-img-wrap { order: -1; }
  .what-is-content .section-title { text-align: center; }
  .what-is-content .btn-primary { display: flex; width: 100%; max-width: 360px; margin: 0 auto; }

  .guarantee-grid { grid-template-columns: 1fr; gap: 36px; text-align: center; }
  .guarantee-img { max-width: 220px; }
  .guarantee-content .section-title { text-align: center; }
  .guarantee-content .btn-primary { display: flex; width: 100%; max-width: 360px; margin: 20px auto 0; }
  .guarantee-point { text-align: left; }

  .final-cta-inner { grid-template-columns: 1fr; gap: 40px; }
  .final-cta-img-wrap { order: -1; }
  .final-cta-content { text-align: center; }
  .final-cta-icons { justify-content: center; }
  .btn-final-cta { max-width: 100%; }

  .science-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 380px; margin: 0 auto; }
  .pricing-popular { transform: none; }
  .pricing-popular:hover { transform: translateY(-6px); }

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

@media (max-width: 768px) {
  .hamburger { display: flex; }
  .nav-links {
    position: fixed; top: 70px; left: 0; right: 0;
    background: rgba(10,22,40,0.98);
    backdrop-filter: blur(12px);
    flex-direction: column; gap: 0;
    padding: 20px;
    transform: translateY(-110%);
    transition: transform 0.35s cubic-bezier(0.4,0,0.2,1);
    z-index: 999;
    border-bottom: 1px solid rgba(0,212,255,0.2);
  }
  .nav-links.open { transform: translateY(0); }
  .nav-link { padding: 14px 16px; border-radius: 8px; font-size: 16px; }
  .nav-cta-btn { width: 100%; margin-top: 8px; justify-content: center; }

  .hero-section { padding: 100px 0 60px; }
  .hero-glow-ring { width: 260px; height: 260px; }
  .hero-product-img { max-width: 280px; }

  .why-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .ingredients-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 28px; }
  .footer-social-col, .footer-links-col { text-align: center; }
  .footer-legal-links { text-align: center; }
  .social-icons { justify-content: center; }
}

@media (max-width: 576px) {
  .container { padding: 0 16px; }
  .why-grid { grid-template-columns: 1fr; }
  .timer-display { padding: 12px 20px; }
  .timer-block span { font-size: 36px; }
  .timer-colon { font-size: 32px; }
  .final-cta-icons { flex-direction: column; align-items: center; gap: 8px; }
  .hero-section { padding: 90px 0 50px; }
  .hero-product-img { max-width: 240px; }
}

/* === PREFER REDUCED MOTION === */
@media (prefers-reduced-motion: reduce) {
  .hero-product-img, .hero-glow-ring, .hero-badge-float,
  .pulse-btn, .final-cta-img, .final-glow { animation: none; }
  .fade-up { opacity: 1; transform: none; transition: none; }
}