/* ============================================
   ViriFlow™ Landing Page - Medical Professional Design
   Mobile-First Responsive CSS
   ============================================ */

/* --- CSS Variables --- */
:root {
  --primary: #0B3D91;
  --primary-light: #1E5BB8;
  --primary-dark: #07244F;
  --accent: #00B4D8;
  --accent-light: #48CAE4;
  --accent-dark: #0096B7;
  --success: #10B981;
  --warning: #F59E0B;
  --danger: #EF4444;
  --gold: #D4AF37;
  --bg-primary: #F0F7FF;
  --bg-white: #FFFFFF;
  --bg-light: #F8FBFF;
  --bg-dark: #0A1628;
  --text-primary: #1A2332;
  --text-secondary: #4B5C6E;
  --text-light: #8494A7;
  --text-white: #FFFFFF;
  --border: #D6E4F0;
  --shadow-sm: 0 1px 3px rgba(11,61,145,0.06);
  --shadow-md: 0 4px 16px rgba(11,61,145,0.1);
  --shadow-lg: 0 8px 32px rgba(11,61,145,0.14);
  --shadow-xl: 0 16px 48px rgba(11,61,145,0.18);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'DM Sans', 'Segoe UI', sans-serif;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --container-max: 1200px;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
  scroll-behavior: smooth;
  font-size: 16px;
}
* { -webkit-tap-highlight-color: transparent; }
body {
  font-family: var(--font-body);
  color: var(--text-primary);
  background: var(--bg-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, select, textarea { font-size: 16px; }

/* --- Container --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: 16px;
  padding-right: 16px;
}

/* --- Typography --- */
h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.2; color: var(--text-primary); }

h1 { font-size: 26px; margin-bottom: 16px; }
h2 { font-size: 22px; margin-bottom: 14px; }
h3 { font-size: 18px; margin-bottom: 10px; }
h4 { font-size: 16px; }
p { margin-bottom: 14px; color: var(--text-secondary); line-height: 1.7; font-size: 15px; }

/* --- Section base --- */
.section { padding: 48px 0; }
.section-header { text-align: center; margin-bottom: 36px; }
.section-header h2 { position: relative; display: inline-block; }
.section-header h2::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  margin: 10px auto 0;
  border-radius: 2px;
}
.section-subtitle { color: var(--text-light); font-size: 15px; max-width: 600px; margin: 10px auto 0; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  font-size: 16px;
  font-weight: 700;
  font-family: var(--font-body);
  border-radius: var(--radius-md);
  transition: var(--transition);
  min-height: 48px;
  text-align: center;
  gap: 8px;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent-dark) 100%);
  color: var(--text-white);
  box-shadow: 0 4px 14px rgba(11,61,145,0.3);
}
.btn-primary:hover { transform: translateY(-2px) scale(1.03); box-shadow: var(--shadow-lg); }
.btn-primary:active { transform: scale(0.98); }
.btn-accent {
  background: linear-gradient(135deg, var(--success) 0%, #059669 100%);
  color: var(--text-white);
  box-shadow: 0 4px 14px rgba(16,185,129,0.3);
}
.btn-accent:hover { transform: translateY(-2px) scale(1.03); box-shadow: 0 6px 20px rgba(16,185,129,0.4); }
.btn-accent:active { transform: scale(0.98); }
.btn-block { width: 100%; }
.btn-lg { padding: 16px 36px; font-size: 17px; min-height: 54px; }
.btn-pulse { animation: pulse 2s infinite; }
@keyframes pulse {
  0%, 100% { box-shadow: 0 4px 14px rgba(16,185,129,0.3); }
  50% { box-shadow: 0 4px 28px rgba(16,185,129,0.5); }
}

/* === NAVIGATION === */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.nav.scrolled { box-shadow: var(--shadow-md); }
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.nav-logo { font-family: var(--font-display); font-size: 22px; color: var(--primary); font-weight: 700; }
.nav-logo span { color: var(--accent); }
.nav-links { display: none; }
.nav-links.active {
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 60px;
  left: 0;
  width: 100%;
  background: var(--bg-white);
  padding: 20px;
  gap: 0;
  box-shadow: var(--shadow-lg);
  animation: slideDown 0.3s ease;
}
@keyframes slideDown { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: translateY(0); } }
.nav-links a {
  font-size: 15px;
  color: var(--text-secondary);
  font-weight: 500;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.nav-links a:hover { color: var(--primary); }
.nav-cta { display: none; }
.hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
}
.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition);
  border-radius: 2px;
}
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* === HERO === */
.hero {
  padding: 80px 0 48px;
  background: linear-gradient(170deg, var(--bg-white) 0%, var(--bg-primary) 60%, #E0EFFF 100%);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -30%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0,180,216,0.07) 0%, transparent 70%);
  border-radius: 50%;
}
.hero-grid { display: flex; flex-direction: column; gap: 32px; align-items: center; }
.hero-image {
  text-align: center;
  position: relative;
  animation: heroFloat 4s ease-in-out infinite;
}
@keyframes heroFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
.hero-image img { max-width: 280px; filter: drop-shadow(0 20px 40px rgba(11,61,145,0.15)); }
.hero-content { text-align: center; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: linear-gradient(135deg, rgba(11,61,145,0.08), rgba(0,180,216,0.08));
  color: var(--primary);
  padding: 6px 14px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 14px;
  border: 1px solid rgba(11,61,145,0.12);
}
.hero h1 { font-size: 28px; line-height: 1.15; }
.hero h1 .highlight {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc { font-size: 15px; color: var(--text-secondary); margin-bottom: 20px; }
.hero-benefits { text-align: left; margin-bottom: 24px; }
.hero-benefits li { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 10px; font-size: 15px; color: var(--text-primary); font-weight: 500; }
.hero-benefits li span { font-size: 18px; flex-shrink: 0; }
.hero-rating { display: flex; align-items: center; justify-content: center; gap: 8px; margin-top: 16px; font-size: 14px; color: var(--text-light); }
.hero-rating img { width: 90px; }

/* === WHY CHOOSE US === */
.why-choose { background: var(--bg-white); }
.trust-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.trust-card {
  background: var(--bg-light);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 16px;
  text-align: center;
  transition: var(--transition);
}
.trust-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.trust-card img { width: 56px; height: 56px; margin: 0 auto 10px; object-fit: contain; }
.trust-card h3 { font-size: 14px; margin-bottom: 6px; color: var(--primary); }
.trust-card p { font-size: 13px; margin-bottom: 0; }

/* === DISCOVER / FORMULA === */
.discover { background: linear-gradient(170deg, var(--bg-primary) 0%, var(--bg-white) 100%); }
.formula-grid { display: grid; grid-template-columns: 1fr; gap: 20px; }
.formula-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.formula-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--primary), var(--accent));
}
.formula-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.formula-card h3 { font-size: 17px; color: var(--primary); margin-bottom: 8px; padding-left: 12px; }
.formula-card p { font-size: 14px; padding-left: 12px; margin-bottom: 0; }

/* === WHAT IS === */
.what-is { background: var(--bg-white); }
.what-is-grid { display: flex; flex-direction: column; gap: 28px; }
.what-is-image { text-align: center; }
.what-is-image img { max-width: 320px; margin: 0 auto; border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.what-is-text p { font-size: 15px; }

/* === HOW IT WORKS === */
.how-works { background: linear-gradient(170deg, var(--bg-primary) 0%, #E0EFFF 100%); }
.how-works-intro { max-width: 720px; margin: 0 auto 32px; text-align: center; }
.steps-list { position: relative; padding-left: 32px; }
.steps-list::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--primary), var(--accent));
}
.step-item { position: relative; margin-bottom: 28px; }
.step-num {
  position: absolute;
  left: -32px;
  top: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: var(--text-white);
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.step-item h3 { font-size: 16px; color: var(--primary); margin-bottom: 6px; }
.step-item p { font-size: 14px; margin-bottom: 0; }

/* === REVIEWS === */
.reviews { background: var(--bg-white); }
.reviews-grid { display: grid; grid-template-columns: 1fr; gap: 20px; }
.review-card {
  background: var(--bg-light);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  transition: var(--transition);
  position: relative;
}
.review-card:hover { box-shadow: var(--shadow-md); }
.review-header { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }
.review-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--accent-light);
}
.review-info h4 { font-size: 15px; margin-bottom: 2px; }
.review-info span { font-size: 13px; color: var(--text-light); }
.review-stars { color: var(--warning); font-size: 16px; margin-bottom: 10px; }
.review-text { font-size: 14px; line-height: 1.7; font-style: italic; color: var(--text-secondary); margin-bottom: 0; }
.review-badge {
  display: inline-block;
  background: rgba(16,185,129,0.1);
  color: var(--success);
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 50px;
  margin-top: 10px;
}

/* === RESEARCH === */
.research { background: linear-gradient(170deg, var(--bg-primary) 0%, var(--bg-white) 100%); }
.research-content { max-width: 800px; margin: 0 auto; }
.research-content h3 { font-size: 17px; color: var(--primary); margin-top: 24px; margin-bottom: 8px; }
.research-content p { font-size: 14.5px; }
.research-content ul { margin: 12px 0; padding-left: 6px; }
.research-content ul li { position: relative; padding-left: 22px; margin-bottom: 8px; font-size: 14.5px; color: var(--text-secondary); }
.research-content ul li::before {
  content: '✔';
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: 700;
}
.research-content a { color: var(--text-secondary); text-decoration: none; border-bottom: none; }
.research-content a:hover { color: var(--text-secondary); }

/* === PRICING === */
.pricing { background: linear-gradient(170deg, var(--bg-dark) 0%, #0F2440 100%); color: var(--text-white); }
.pricing .section-header h2 { color: var(--text-white); }
.pricing .section-header h2::after { background: linear-gradient(90deg, var(--accent), var(--gold)); }
.pricing .section-subtitle { color: rgba(255,255,255,0.65); }
.countdown {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 36px;
}
.countdown-item {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  text-align: center;
  min-width: 70px;
}
.countdown-num { font-size: 28px; font-weight: 800; color: var(--accent-light); font-family: var(--font-display); }
.countdown-label { font-size: 11px; text-transform: uppercase; letter-spacing: 1px; color: rgba(255,255,255,0.5); }
.pricing-grid { display: grid; grid-template-columns: 1fr; gap: 24px; }
.pricing-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  position: relative;
  transition: var(--transition);
}
.pricing-card:hover { transform: translateY(-4px); }
.pricing-card.popular {
  background: linear-gradient(170deg, rgba(0,180,216,0.12) 0%, rgba(11,61,145,0.08) 100%);
  border: 2px solid var(--accent);
  transform: scale(1);
}
.popular-label {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--accent), var(--primary));
  color: var(--text-white);
  padding: 5px 20px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  white-space: nowrap;
}
.pricing-card .label { font-size: 14px; font-weight: 600; text-transform: uppercase; letter-spacing: 1px; color: var(--accent-light); margin-bottom: 4px; }
.pricing-card .bottles { font-size: 20px; font-weight: 800; color: var(--text-white); margin-bottom: 2px; }
.pricing-card .supply { font-size: 13px; color: rgba(255,255,255,0.5); margin-bottom: 16px; }
.pricing-card .prod-img { max-width: 140px; margin: 0 auto 16px; }
.pricing-card .price { font-size: 42px; font-weight: 800; color: var(--text-white); font-family: var(--font-display); }
.pricing-card .price small { font-size: 16px; font-weight: 400; color: rgba(255,255,255,0.5); }
.pricing-card .old-price {
  font-size: 16px;
  color: rgba(255,255,255,0.4);
  text-decoration: line-through;
  margin-bottom: 4px;
}
.pricing-card .total-price { font-size: 14px; color: rgba(255,255,255,0.6); margin-bottom: 16px; }
.pricing-card .total-price s { color: rgba(255,255,255,0.3); }
.pricing-badges { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px; margin-bottom: 16px; }
.pricing-badges span {
  background: rgba(16,185,129,0.15);
  color: var(--success);
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 50px;
}
.pricing-card .btn { width: 100%; min-height: 50px; font-size: 16px; }
.payment-logos { display: flex; justify-content: center; gap: 6px; margin-top: 12px; opacity: 0.5; font-size: 22px; }

/* === INGREDIENTS === */
.ingredients { background: var(--bg-white); }
.ingredients-grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
.ingredient-card {
  background: var(--bg-light);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}
.ingredient-card:hover { box-shadow: var(--shadow-md); }
.ingredient-header {
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  min-height: 48px;
}
.ingredient-header h3 { font-size: 16px; color: var(--primary); margin-bottom: 0; }
.ingredient-header .icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(11,61,145,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  flex-shrink: 0;
}
.ingredient-card.open .ingredient-header .icon { transform: rotate(180deg); }
.ingredient-body { padding: 0 20px 20px; display: none; }
.ingredient-card.open .ingredient-body { display: block; }
.ingredient-body p { font-size: 14px; margin-bottom: 0; }

/* === SCIENTIFIC EVIDENCE === */
.science { background: linear-gradient(170deg, var(--bg-primary) 0%, var(--bg-white) 100%); }
.science-content { max-width: 800px; margin: 0 auto; }
.science-content h3 { font-size: 17px; color: var(--primary); margin-top: 20px; margin-bottom: 8px; }
.science-content p { font-size: 14.5px; }
.science-content a { color: var(--text-secondary); text-decoration: none; }
.science-content a:hover { color: var(--text-secondary); }

/* === GUARANTEE === */
.guarantee { background: var(--bg-white); }
.guarantee-grid { display: flex; flex-direction: column; align-items: center; gap: 28px; text-align: center; }
.guarantee-image img { max-width: 180px; margin: 0 auto; }
.guarantee-text h3 { font-size: 17px; color: var(--primary); margin-bottom: 8px; }
.guarantee-text p { font-size: 14.5px; }
.guarantee-points { margin-top: 16px; }
.guarantee-points li {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  justify-content: center;
}
.guarantee-points li span { color: var(--success); font-size: 20px; }

/* === BENEFITS === */
.benefits { background: linear-gradient(170deg, var(--bg-primary) 0%, var(--bg-white) 100%); }
.benefits-list { max-width: 800px; margin: 0 auto; }
.benefit-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 20px;
  padding: 16px;
  background: var(--bg-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}
.benefit-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(11,61,145,0.08), rgba(0,180,216,0.08));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.benefit-item p { font-size: 14.5px; margin-bottom: 0; }

/* === PROS CONS === */
.pros-cons { background: var(--bg-white); }
.pros-cons-grid { display: grid; grid-template-columns: 1fr; gap: 20px; max-width: 800px; margin: 0 auto; }
.pros-box, .cons-box { padding: 24px 20px; border-radius: var(--radius-md); }
.pros-box { background: rgba(16,185,129,0.05); border: 1px solid rgba(16,185,129,0.2); }
.cons-box { background: rgba(239,68,68,0.04); border: 1px solid rgba(239,68,68,0.15); }
.pros-box h3 { color: var(--success); }
.cons-box h3 { color: var(--danger); }
.pros-box li, .cons-box li { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 10px; font-size: 14.5px; color: var(--text-secondary); }
.pros-box li::before { content: '✅'; flex-shrink: 0; }
.cons-box li::before { content: '❌'; flex-shrink: 0; }

/* === WHERE TO BUY === */
.where-buy { background: linear-gradient(170deg, var(--bg-primary) 0%, var(--bg-white) 100%); }
.where-buy-content { max-width: 700px; margin: 0 auto; text-align: center; }

/* === ORDER STEPS === */
.order-steps { background: var(--bg-white); }
.order-grid { display: flex; flex-direction: column; gap: 28px; align-items: center; }
.order-image { text-align: center; }
.order-image img { max-width: 340px; margin: 0 auto; border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.order-text { text-align: center; }
.order-text .step-box {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  text-align: left;
  margin-bottom: 20px;
  padding: 14px;
  background: var(--bg-light);
  border-radius: var(--radius-md);
}
.order-text .step-num-sm {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: var(--text-white);
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* === FAQ === */
.faq { background: linear-gradient(170deg, var(--bg-primary) 0%, var(--bg-white) 100%); }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { box-shadow: var(--shadow-sm); }
.faq-question {
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  min-height: 52px;
  font-weight: 600;
  font-size: 15px;
  color: var(--text-primary);
  gap: 12px;
}
.faq-question .icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(11,61,145,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  flex-shrink: 0;
  font-size: 14px;
}
.faq-item.open .faq-question .icon { transform: rotate(180deg); }
.faq-answer { padding: 0 20px 20px; display: none; }
.faq-item.open .faq-answer { display: block; }
.faq-answer p { font-size: 14.5px; margin-bottom: 0; }

/* === FINAL CTA === */
.final-cta {
  background: linear-gradient(170deg, var(--primary-dark) 0%, var(--bg-dark) 100%);
  color: var(--text-white);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.final-cta::before {
  content: '';
  position: absolute;
  top: -40%;
  left: -20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0,180,216,0.1) 0%, transparent 70%);
  border-radius: 50%;
}
.final-cta h2 { color: var(--text-white); font-size: 24px; }
.final-cta .old-price { font-size: 22px; color: rgba(255,255,255,0.4); text-decoration: line-through; }
.final-cta .new-price { font-size: 36px; font-weight: 800; color: var(--accent-light); font-family: var(--font-display); margin: 8px 0; }
.final-cta img { max-width: 240px; margin: 0 auto 20px; filter: drop-shadow(0 16px 32px rgba(0,0,0,0.3)); animation: heroFloat 4s ease-in-out infinite; }

/* === FOOTER === */
.footer { background: var(--bg-dark); color: rgba(255,255,255,0.5); padding: 40px 0 24px; }
.footer-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; margin-bottom: 20px; }
.footer-links a { color: rgba(255,255,255,0.6); font-size: 14px; transition: var(--transition); }
.footer-links a:hover { color: var(--accent); }
.footer-social { display: flex; justify-content: center; gap: 14px; margin-bottom: 20px; }
.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.6);
  transition: var(--transition);
  font-size: 16px;
}
.footer-social a:hover { background: var(--accent); color: var(--text-white); }
.footer-disclaimer { font-size: 12px; text-align: center; max-width: 700px; margin: 0 auto; line-height: 1.6; }
.footer-copyright { text-align: center; font-size: 13px; margin-top: 20px; border-top: 1px solid rgba(255,255,255,0.06); padding-top: 16px; }

/* === NOTIFICATION POPUP === */
.notification-popup {
  position: fixed;
  bottom: 20px;
  left: 16px;
  background: var(--bg-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 999;
  max-width: 320px;
  transform: translateX(-120%);
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  border-left: 4px solid var(--success);
}
.notification-popup.show { transform: translateX(0); }
.notification-popup .notif-icon { font-size: 24px; }
.notification-popup .notif-text { font-size: 13px; color: var(--text-secondary); }
.notification-popup .notif-text strong { color: var(--text-primary); }

/* === SCROLL TOP === */
.scroll-top {
  position: fixed;
  bottom: 24px;
  right: 16px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: var(--text-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow: var(--shadow-md);
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: var(--transition);
}
.scroll-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.scroll-top:hover { transform: translateY(-2px); }

/* === FADE IN ANIMATION === */
.fade-in { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* === REDUCED MOTION === */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  .hero-image { animation: none; }
  .final-cta img { animation: none; }
}

/* ============ TABLET (min-width: 576px) ============ */
@media (min-width: 576px) {
  .container { padding-left: 24px; padding-right: 24px; }
  h1 { font-size: 32px; }
  h2 { font-size: 26px; }
  .hero-image img { max-width: 320px; }
  .reviews-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: 1fr; gap: 24px; }
  .pros-cons-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ============ TABLET LARGE (min-width: 768px) ============ */
@media (min-width: 768px) {
  .container { padding-left: 32px; padding-right: 32px; }
  h1 { font-size: 36px; }
  h2 { font-size: 30px; }
  p { font-size: 16px; }
  .section { padding: 64px 0; }

  /* Nav */
  .hamburger { display: none; }
  .nav-links {
    display: flex !important;
    position: static;
    flex-direction: row;
    background: none;
    padding: 0;
    gap: 24px;
    box-shadow: none;
    animation: none;
  }
  .nav-links a { border-bottom: none; padding: 0; font-size: 14px; }
  .nav-cta { display: block; }
  .nav-cta .btn { padding: 10px 20px; font-size: 14px; min-height: 40px; }

  /* Hero */
  .hero { padding: 100px 0 64px; }
  .hero-grid { flex-direction: row; text-align: left; }
  .hero-image { flex: 0 0 40%; }
  .hero-image img { max-width: 360px; }
  .hero-content { flex: 1; text-align: left; }
  .hero-rating { justify-content: flex-start; }

  /* Trust */
  .trust-grid { grid-template-columns: repeat(4, 1fr); }
  .trust-card img { width: 64px; height: 64px; }

  /* Formula */
  .formula-grid { grid-template-columns: repeat(2, 1fr); }

  /* What is */
  .what-is-grid { flex-direction: row; align-items: center; }
  .what-is-image { flex: 0 0 40%; }
  .what-is-text { flex: 1; }

  /* Guarantee */
  .guarantee-grid { flex-direction: row; text-align: left; }
  .guarantee-points li { justify-content: flex-start; }

  /* Order */
  .order-grid { flex-direction: row; align-items: center; }
  .order-image { flex: 0 0 40%; }
  .order-text { flex: 1; text-align: left; }

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

/* ============ DESKTOP (min-width: 1024px) ============ */
@media (min-width: 1024px) {
  h1 { font-size: 44px; }
  h2 { font-size: 34px; }
  .section { padding: 80px 0; }
  .hero { padding: 120px 0 80px; }
  .hero-image img { max-width: 420px; }
  .hero h1 { font-size: 42px; }
  .reviews-grid { grid-template-columns: repeat(3, 1fr); }
  .pricing-grid { grid-template-columns: repeat(3, 1fr); }
  .pricing-card.popular { transform: scale(1.05); }
  .pricing-card.popular:hover { transform: scale(1.08); }
  .formula-grid { grid-template-columns: repeat(3, 1fr); }
  .ingredients-grid { grid-template-columns: repeat(3, 1fr); }
  .nav-inner { height: 68px; }
  .nav-links { gap: 32px; }
}

/* ============ LARGE DESKTOP (min-width: 1440px) ============ */
@media (min-width: 1440px) {
  .container { max-width: 1320px; }
}