/* ===================================================
   PROSTA DEFEND - STYLES.CSS
   Design: Medical Professional + Premium Hybrid
   Primary: Deep Navy #0F2557 | Accent: #2563EB | Gold: #D4AF37
   =================================================== */

/* --- FONTS --- */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;600;700;800;900&family=Open+Sans:wght@400;500;600&display=swap');

/* --- CSS VARIABLES --- */
:root {
  --navy: #0F2557;
  --blue: #2563EB;
  --blue-light: #3B82F6;
  --blue-pale: #EFF6FF;
  --gold: #D4AF37;
  --gold-light: #F7EFC0;
  --green: #16A34A;
  --red: #DC2626;
  --white: #FFFFFF;
  --gray-50: #F9FAFB;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-400: #9CA3AF;
  --gray-600: #4B5563;
  --gray-800: #1F2937;
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Open Sans', sans-serif;
  --shadow-sm: 0 2px 8px rgba(15,37,87,0.08);
  --shadow-md: 0 4px 20px rgba(15,37,87,0.14);
  --shadow-lg: 0 8px 40px rgba(15,37,87,0.18);
  --shadow-gold: 0 4px 24px rgba(212,175,55,0.3);
  --radius: 16px;
  --radius-sm: 8px;
  --radius-lg: 24px;
  --transition: 0.3s cubic-bezier(.4,0,.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%;
}
* { -webkit-tap-highlight-color: transparent; }
body {
  font-family: var(--font-body);
  color: var(--gray-800);
  background: var(--white);
  overflow-x: hidden;
  line-height: 1.7;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
input, select, textarea { font-size: 16px; font-family: var(--font-body); }

/* --- TYPOGRAPHY --- */
h1,h2,h3,h4,h5 { font-family: var(--font-heading); line-height: 1.2; }
h1 { font-size: clamp(26px, 5vw, 52px); font-weight: 900; }
h2 { font-size: clamp(22px, 4vw, 38px); font-weight: 800; }
h3 { font-size: clamp(18px, 2.5vw, 24px); font-weight: 700; }
h4 { font-size: clamp(16px, 2vw, 20px); font-weight: 700; }
p { font-size: 16px; line-height: 1.75; color: var(--gray-600); }

/* --- CONTAINER --- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}
@media (min-width: 768px) { .container { padding: 0 32px; } }
@media (min-width: 1024px) { .container { padding: 0 40px; } }

/* --- BUTTONS --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 52px;
  padding: 14px 32px;
  border-radius: 50px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 16px;
  border: none;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
  text-align: center;
  white-space: nowrap;
}
.btn:hover { transform: scale(1.05); }
.btn:active { transform: scale(0.97); }
.btn-primary {
  background: linear-gradient(135deg, var(--blue) 0%, #1D4ED8 100%);
  color: var(--white);
  box-shadow: 0 4px 20px rgba(37,99,235,0.4);
}
.btn-primary:hover { box-shadow: 0 8px 32px rgba(37,99,235,0.55); }
.btn-gold {
  background: linear-gradient(135deg, var(--gold) 0%, #B8952A 100%);
  color: var(--white);
  box-shadow: var(--shadow-gold);
  font-size: 18px;
  padding: 18px 40px;
  min-height: 58px;
}
.btn-gold:hover { box-shadow: 0 8px 40px rgba(212,175,55,0.55); }
.btn-outline {
  background: transparent;
  border: 2px solid var(--blue);
  color: var(--blue);
}
.btn-full { width: 100%; }

/* --- BADGE / PILL --- */
.badge {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 50px;
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.badge-blue { background: var(--blue-pale); color: var(--blue); }
.badge-gold { background: var(--gold-light); color: #7A5F00; }
.badge-green { background: #DCFCE7; color: #166534; }
.badge-red { background: #FEE2E2; color: #991B1B; }

/* --- SECTION SPACING --- */
section { padding: 60px 0; }
@media (min-width: 768px) { section { padding: 80px 0; } }
@media (min-width: 1024px) { section { padding: 100px 0; } }

.section-tag {
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--blue);
  margin-bottom: 12px;
  display: block;
}
.section-heading {
  color: var(--navy);
  margin-bottom: 16px;
}
.section-subheading {
  font-size: 18px;
  color: var(--gray-600);
  max-width: 640px;
  margin: 0 auto 48px;
  text-align: center;
}
.text-center { text-align: center; }
.gold-line {
  display: block;
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--gold), #F5D77E);
  border-radius: 2px;
  margin: 16px auto 32px;
}

/* =============================================
   SECTION 1: NAVIGATION
   ============================================= */
#navbar {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  box-shadow: 0 2px 16px rgba(15,37,87,0.1);
  transition: padding var(--transition), box-shadow var(--transition);
}
#navbar.scrolled { box-shadow: 0 4px 24px rgba(15,37,87,0.18); }
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 22px;
  color: var(--navy);
}
.nav-logo img { width: 44px; height: 44px; border-radius: 50%; object-fit: cover; }
.nav-logo span { color: var(--blue); }
.nav-links {
  display: none;
  align-items: center;
  gap: 32px;
}
@media (min-width: 768px) { .nav-links { display: flex; } }
.nav-links a {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-800);
  transition: color var(--transition);
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--blue);
  transition: width var(--transition);
}
.nav-links a:hover { color: var(--blue); }
.nav-links a:hover::after { width: 100%; }
.nav-cta { display: none; }
@media (min-width: 768px) { .nav-cta { display: inline-flex; } }
.hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}
@media (min-width: 768px) { .hamburger { display: none; } }
.hamburger span {
  display: block;
  width: 26px;
  height: 2.5px;
  background: var(--navy);
  border-radius: 2px;
  transition: all var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* Mobile Menu */
.mobile-menu {
  display: none;
  flex-direction: column;
  background: var(--white);
  padding: 0 20px 20px;
  border-top: 1px solid var(--gray-200);
  animation: slideDown 0.3s ease;
}
.mobile-menu.open { display: flex; }
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}
.mobile-menu a {
  padding: 14px 0;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 16px;
  color: var(--navy);
  border-bottom: 1px solid var(--gray-100);
  min-height: 48px;
  display: flex;
  align-items: center;
}
.mobile-menu .btn { margin-top: 16px; min-height: 52px; }

/* Spacer for fixed nav */
.nav-spacer { height: 68px; }

/* =============================================
   SECTION 2: HERO
   ============================================= */
#hero {
  background: linear-gradient(135deg, #0A1B45 0%, #0F2557 50%, #162C6B 100%);
  padding: 60px 0 80px;
  position: relative;
  overflow: hidden;
}
#hero::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(37,99,235,0.15) 0%, transparent 70%);
  pointer-events: none;
}
#hero::after {
  content: '';
  position: absolute;
  bottom: -20%;
  left: -5%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(212,175,55,0.1) 0%, transparent 70%);
  pointer-events: none;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}
@media (min-width: 768px) {
  .hero-grid { grid-template-columns: 1fr 1fr; gap: 60px; }
}
.hero-image-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  order: -1;
}
@media (min-width: 768px) { .hero-image-wrap { order: 0; } }
.hero-bottle {
  max-width: 320px;
  width: 100%;
  filter: drop-shadow(0 30px 60px rgba(0,0,0,0.5));
  animation: floatBottle 4s ease-in-out infinite;
  position: relative;
  z-index: 2;
}
@keyframes floatBottle {
  0%, 100% { transform: translateY(0px) rotate(-2deg); }
  50% { transform: translateY(-18px) rotate(2deg); }
}
.hero-glow {
  position: absolute;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(37,99,235,0.25) 0%, transparent 70%);
  border-radius: 50%;
  z-index: 1;
  animation: glowPulse 3s ease-in-out infinite;
}
@keyframes glowPulse {
  0%, 100% { transform: scale(1); opacity: 0.7; }
  50% { transform: scale(1.2); opacity: 1; }
}
.hero-rings {
  position: absolute;
  width: 350px;
  height: 350px;
  z-index: 0;
}
.hero-rings::before, .hero-rings::after {
  content: '';
  position: absolute;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 50%;
}
.hero-rings::before { inset: 0; animation: ringPulse 3s ease-in-out infinite; }
.hero-rings::after { inset: 30px; animation: ringPulse 3s ease-in-out infinite 0.5s; }
@keyframes ringPulse {
  0%, 100% { transform: scale(1); opacity: 0.4; }
  50% { transform: scale(1.1); opacity: 0.8; }
}
.hero-content { color: var(--white); }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(212,175,55,0.15);
  border: 1px solid rgba(212,175,55,0.4);
  color: var(--gold);
  padding: 6px 16px;
  border-radius: 50px;
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 20px;
}
.hero-content h1 {
  color: var(--white);
  margin-bottom: 20px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.hero-content h1 .accent { color: var(--gold); }
.hero-desc {
  color: rgba(255,255,255,0.82);
  font-size: 17px;
  line-height: 1.75;
  margin-bottom: 12px;
}
.hero-stars {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 28px;
}
.hero-stars .stars { color: var(--gold); font-size: 18px; letter-spacing: 2px; }
.hero-stars .count { color: rgba(255,255,255,0.7); font-size: 14px; font-family: var(--font-heading); }
.hero-cta-wrap { display: flex; flex-direction: column; gap: 16px; }
@media (min-width: 480px) { .hero-cta-wrap { flex-direction: row; flex-wrap: wrap; } }
.hero-guarantee {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.65);
  font-size: 13px;
}
.hero-guarantee svg { flex-shrink: 0; }

/* =============================================
   SECTION 3: WHY CHOOSE US
   ============================================= */
#why-us { background: var(--gray-50); }
.trust-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
@media (min-width: 576px) { .trust-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 992px) { .trust-grid { grid-template-columns: repeat(4, 1fr); } }
.trust-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  transition: transform var(--transition), box-shadow var(--transition);
  opacity: 0;
  transform: translateY(30px);
}
.trust-card.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease, transform 0.5s ease, box-shadow 0.3s ease;
}
.trust-card:hover {
  transform: translateY(-6px) rotate(1deg) scale(1.03);
  box-shadow: var(--shadow-lg);
}
.trust-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  object-fit: contain;
}
.trust-card h3 { color: var(--navy); margin-bottom: 10px; font-size: 16px; }
.trust-card p { font-size: 14px; line-height: 1.65; }

/* =============================================
   SECTION 4: WHAT IS
   ============================================= */
#what-is { background: var(--white); }
.what-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: center;
}
@media (min-width: 768px) { .what-grid { grid-template-columns: 1fr 1fr; } }
.what-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
}
.what-image img { width: 100%; height: auto; }
.what-image-badge {
  position: absolute;
  bottom: 20px;
  left: 20px;
  background: var(--white);
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 700;
  color: var(--navy);
}
.what-image-badge .dot {
  width: 8px;
  height: 8px;
  background: var(--green);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%,100% { box-shadow: 0 0 0 0 rgba(22,163,74,0.4); }
  50% { box-shadow: 0 0 0 6px rgba(22,163,74,0); }
}
.what-content p { margin-bottom: 18px; }
.what-list { margin: 24px 0; display: flex; flex-direction: column; gap: 12px; }
.what-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  color: var(--gray-600);
}
.what-list li::before {
  content: '✓';
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  background: var(--blue-pale);
  color: var(--blue);
  border-radius: 50%;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}

/* =============================================
   SECTION 5: HOW IT WORKS
   ============================================= */
#how-it-works { background: var(--blue-pale); }
.accordion { display: flex; flex-direction: column; gap: 12px; max-width: 800px; margin: 0 auto; }
.accordion-item {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--gray-200);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  min-height: 64px;
  background: var(--white);
  border: none;
  width: 100%;
  text-align: left;
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 700;
  color: var(--navy);
  transition: background var(--transition);
}
.accordion-header:hover { background: var(--gray-50); }
.accordion-header.active { background: var(--navy); color: var(--white); }
.accordion-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--blue-pale);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--blue);
  transition: transform var(--transition);
}
.accordion-header.active .accordion-icon {
  background: rgba(255,255,255,0.2);
  color: var(--white);
  transform: rotate(45deg);
}
.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.accordion-body.open { max-height: 600px; }
.accordion-body-inner { padding: 0 24px 24px; }
.accordion-body-inner p { margin-bottom: 10px; }
.accordion-num {
  display: inline-block;
  background: var(--blue);
  color: var(--white);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 13px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  text-align: center;
  line-height: 28px;
  margin-right: 12px;
  flex-shrink: 0;
}

/* =============================================
   SECTION 6: REVIEWS
   ============================================= */
#reviews { background: var(--white); }
.reviews-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
@media (min-width: 576px) { .reviews-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 992px) { .reviews-grid { grid-template-columns: repeat(3, 1fr); } }
.review-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: transform var(--transition), box-shadow var(--transition);
}
.review-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.review-card::before {
  content: '"';
  position: absolute;
  top: 20px;
  right: 24px;
  font-size: 60px;
  color: var(--blue-pale);
  font-family: Georgia, serif;
  line-height: 1;
}
.review-profile { 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(--blue-pale);
}
.review-name { font-family: var(--font-heading); font-weight: 700; font-size: 15px; color: var(--navy); }
.review-loc { font-size: 13px; color: var(--gray-400); }
.review-stars { color: var(--gold); font-size: 16px; letter-spacing: 2px; margin-bottom: 12px; }
.review-text { font-size: 15px; line-height: 1.7; color: var(--gray-600); }
.review-verified {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  font-size: 12px;
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--green);
}

/* =============================================
   SECTION 7 & 13: PRICING
   ============================================= */
.pricing-section { background: var(--navy); }
.pricing-section .section-heading { color: var(--white); }
.pricing-section .section-subheading { color: rgba(255,255,255,0.7); }
.pricing-section .section-tag { color: var(--gold); }

/* Countdown */
.countdown-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-bottom: 48px;
}
.countdown-label {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 600;
  color: rgba(255,255,255,0.7);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.countdown-timer {
  display: flex;
  gap: 8px;
  align-items: center;
}
.count-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  min-width: 64px;
}
@media (min-width: 480px) { .count-block { min-width: 80px; padding: 14px 20px; } }
.count-num {
  font-family: var(--font-heading);
  font-size: 32px;
  font-weight: 900;
  color: var(--gold);
  line-height: 1;
}
@media (min-width: 480px) { .count-num { font-size: 42px; } }
.count-unit {
  font-size: 11px;
  font-family: var(--font-heading);
  font-weight: 600;
  color: rgba(255,255,255,0.5);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 4px;
}
.count-sep {
  font-size: 32px;
  font-weight: 900;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 20px;
}

/* Pricing cards */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
@media (min-width: 576px) { .pricing-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 992px) { .pricing-grid { grid-template-columns: repeat(3, 1fr); } }
.price-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  position: relative;
  transition: transform var(--transition), box-shadow var(--transition);
}
.price-card:hover { transform: translateY(-6px); box-shadow: 0 16px 48px rgba(0,0,0,0.3); }
.price-card.popular {
  background: linear-gradient(135deg, #EFF6FF 0%, #DBEAFE 100%);
  border: 3px solid var(--blue);
  transform: scale(1.03);
}
.price-card.popular:hover { transform: scale(1.03) translateY(-6px); }
.price-label {
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--blue);
  margin-bottom: 4px;
}
.price-qty {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 900;
  color: var(--navy);
  margin-bottom: 4px;
}
.price-supply {
  font-size: 14px;
  color: var(--gray-400);
  font-family: var(--font-heading);
  font-weight: 600;
  margin-bottom: 16px;
}
.price-img {
  width: 120px;
  height: 140px;
  object-fit: contain;
  margin: 0 auto 16px;
}
.price-per {
  font-family: var(--font-heading);
  font-size: 36px;
  font-weight: 900;
  color: var(--navy);
  line-height: 1;
}
.price-per span { font-size: 20px; vertical-align: top; margin-top: 6px; display: inline-block; }
.price-unit { font-size: 14px; color: var(--gray-400); font-family: var(--font-heading); margin-bottom: 8px; }
.price-total {
  font-size: 15px;
  color: var(--gray-600);
  font-family: var(--font-heading);
  font-weight: 600;
  margin-bottom: 20px;
}
.price-total s { color: var(--gray-400); }
.price-badges { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px; margin-bottom: 20px; }
.price-btn { width: 100%; margin-bottom: 16px; }
.price-cards-img { width: 100%; max-width: 220px; margin: 0 auto; opacity: 0.7; }
.popular-ribbon {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--blue), #1D4ED8);
  color: var(--white);
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 5px 20px;
  border-radius: 50px;
  white-space: nowrap;
}
.stars-row { display: flex; justify-content: center; margin-top: 40px; }
.stars-img { max-width: 260px; }

/* =============================================
   SECTION 8: BONUS
   ============================================= */
#bonus {
  background: linear-gradient(135deg, var(--gold-light) 0%, #FFFBEB 100%);
}
.bonus-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  max-width: 800px;
  margin: 0 auto;
}
@media (min-width: 600px) { .bonus-grid { grid-template-columns: repeat(2, 1fr); } }
.bonus-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 2px solid rgba(212,175,55,0.3);
  transition: transform var(--transition), box-shadow var(--transition);
}
.bonus-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-gold); }
.bonus-img { width: 100%; height: 200px; object-fit: cover; }
.bonus-body { padding: 20px; }
.bonus-num {
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 800;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 6px;
}
.bonus-title { font-family: var(--font-heading); font-size: 18px; font-weight: 800; color: var(--navy); margin-bottom: 8px; }
.bonus-desc { font-size: 14px; color: var(--gray-600); }
.bonus-tag {
  display: inline-block;
  background: var(--gold);
  color: var(--white);
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 700;
  padding: 3px 12px;
  border-radius: 4px;
  margin-top: 12px;
}

/* =============================================
   SECTION 9: INGREDIENTS
   ============================================= */
#ingredients { background: var(--white); }
.ingr-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
@media (min-width: 576px) { .ingr-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 992px) { .ingr-grid { grid-template-columns: repeat(3, 1fr); } }
.ingr-card {
  background: var(--gray-50);
  border-radius: var(--radius);
  padding: 24px;
  border-left: 4px solid var(--blue);
  transition: transform var(--transition), box-shadow var(--transition);
}
.ingr-card:hover { transform: translateX(4px); box-shadow: var(--shadow-md); }
.ingr-name {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 16px;
  color: var(--navy);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.ingr-name .icon { font-size: 18px; }
.ingr-desc { font-size: 14px; line-height: 1.65; margin-bottom: 10px; }
.ingr-benefit {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--blue);
}

/* =============================================
   SECTION 10: SCIENTIFIC EVIDENCE
   ============================================= */
#science { background: var(--gray-50); }
.science-list { display: flex; flex-direction: column; gap: 16px; max-width: 900px; margin: 0 auto; }
.science-item {
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  cursor: pointer;
  transition: box-shadow var(--transition);
}
.science-item:hover { box-shadow: var(--shadow-md); }
.science-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.science-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 16px;
  color: var(--navy);
}
.science-toggle {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--blue-pale);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 18px;
  color: var(--blue);
  font-weight: 700;
  transition: transform var(--transition);
}
.science-item.open .science-toggle { transform: rotate(45deg); }
.science-body { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.science-item.open .science-body { max-height: 400px; }
.science-body-inner { padding-top: 16px; font-size: 15px; line-height: 1.75; }
.science-ref {
  display: inline-block;
  margin-top: 10px;
  padding: 4px 12px;
  background: var(--blue-pale);
  color: var(--blue);
  border-radius: 4px;
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 600;
}

/* =============================================
   SECTION 11: GUARANTEE
   ============================================= */
#guarantee { background: var(--white); }
.guarantee-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}
@media (min-width: 768px) { .guarantee-grid { grid-template-columns: 1fr 1.5fr; } }
.guarantee-img-wrap { text-align: center; }
.guarantee-img { max-width: 280px; margin: 0 auto; }
.guarantee-points { display: flex; flex-direction: column; gap: 24px; }
.guarantee-point {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  padding: 20px;
  background: var(--gray-50);
  border-radius: var(--radius);
  border-left: 4px solid var(--gold);
}
.guarantee-point-icon {
  font-size: 28px;
  flex-shrink: 0;
  margin-top: 2px;
}
.guarantee-point h4 { color: var(--navy); margin-bottom: 6px; }
.guarantee-point p { font-size: 14px; }

/* =============================================
   SECTION 12: BENEFITS
   ============================================= */
#benefits { background: linear-gradient(135deg, #0F2557 0%, #1D3A7A 100%); }
#benefits .section-heading { color: var(--white); }
#benefits .section-tag { color: var(--gold); }
.benefits-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
@media (min-width: 576px) { .benefits-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 992px) { .benefits-grid { grid-template-columns: repeat(3, 1fr); } }
.benefit-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius);
  padding: 20px;
  transition: background var(--transition), transform var(--transition);
}
.benefit-item:hover {
  background: rgba(255,255,255,0.12);
  transform: translateX(4px);
}
.benefit-icon {
  font-size: 28px;
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: rgba(212,175,55,0.15);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}
.benefit-text h4 { color: var(--white); margin-bottom: 4px; font-size: 15px; }
.benefit-text p { font-size: 13px; color: rgba(255,255,255,0.65); }

/* =============================================
   SECTION 14: FAQ
   ============================================= */
#faq { background: var(--gray-50); }
.faq-list { display: flex; flex-direction: column; gap: 12px; max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--gray-200);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  min-height: 64px;
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 700;
  color: var(--navy);
  background: var(--white);
  border: none;
  width: 100%;
  text-align: left;
  transition: background var(--transition);
}
.faq-q:hover { background: var(--gray-50); }
.faq-q.active { background: var(--navy); color: var(--white); }
.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--blue-pale);
  color: var(--blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  flex-shrink: 0;
  transition: transform var(--transition), background var(--transition), color var(--transition);
}
.faq-q.active .faq-icon {
  background: rgba(255,255,255,0.2);
  color: var(--white);
  transform: rotate(45deg);
}
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.faq-a.open { max-height: 400px; }
.faq-a-inner { padding: 0 24px 20px; font-size: 15px; line-height: 1.75; color: var(--gray-600); }

/* =============================================
   SECTION 15: FINAL CTA
   ============================================= */
#final-cta {
  background: linear-gradient(135deg, #0F2557 0%, #162C6B 100%);
  overflow: hidden;
  position: relative;
}
#final-cta::before {
  content: '';
  position: absolute;
  top: -30%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(212,175,55,0.08) 0%, transparent 70%);
}
.final-cta-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 32px;
  position: relative;
  z-index: 1;
}
@media (min-width: 768px) {
  .final-cta-inner { flex-direction: row; text-align: left; gap: 60px; }
}
.final-cta-img-wrap { flex-shrink: 0; }
.final-cta-img {
  max-width: 240px;
  filter: drop-shadow(0 20px 40px rgba(0,0,0,0.4));
  animation: floatBottle 4s ease-in-out infinite;
}
.final-cta-content { flex: 1; }
.final-cta-content h2 { color: var(--white); margin-bottom: 16px; font-size: clamp(24px,4vw,40px); }
.final-price {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}
@media (max-width: 767px) { .final-price { justify-content: center; } }
.price-old {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 700;
  color: rgba(255,255,255,0.4);
  text-decoration: line-through;
}
.price-new {
  font-family: var(--font-heading);
  font-size: 36px;
  font-weight: 900;
  color: var(--gold);
}
.final-guarantee {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.65);
  font-size: 14px;
  margin-top: 16px;
}
@media (max-width: 767px) { .final-guarantee { justify-content: center; } }

/* =============================================
   SECTION 16: FOOTER
   ============================================= */
#footer { background: #07153A; padding: 48px 0 24px; }
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-bottom: 32px;
}
@media (min-width: 768px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr; } }
.footer-brand { display: flex; flex-direction: column; gap: 14px; }
.footer-logo {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 900;
  color: var(--white);
}
.footer-logo span { color: var(--blue-light); }
.footer-desc { font-size: 14px; color: rgba(255,255,255,0.55); line-height: 1.75; }
.footer-social { display: flex; gap: 12px; margin-top: 4px; }
.social-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.7);
  font-size: 16px;
  transition: background var(--transition), color var(--transition);
  text-decoration: none;
}
.social-icon:hover { background: var(--blue); color: var(--white); }
.footer-col h4 {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--white);
  margin-bottom: 16px;
}
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a {
  font-size: 14px;
  color: rgba(255,255,255,0.55);
  transition: color var(--transition);
  min-height: 32px;
  display: flex;
  align-items: center;
}
.footer-links a:hover { color: var(--blue-light); }
.footer-divider { border: none; border-top: 1px solid rgba(255,255,255,0.08); margin-bottom: 24px; }
.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
  text-align: center;
}
@media (min-width: 768px) {
  .footer-bottom { flex-direction: row; justify-content: space-between; text-align: left; }
}
.footer-copy { font-size: 13px; color: rgba(255,255,255,0.35); }
.footer-legal { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; }
@media (min-width: 768px) { .footer-legal { justify-content: flex-end; } }
.footer-legal a {
  font-size: 13px;
  color: rgba(255,255,255,0.35);
  transition: color var(--transition);
}
.footer-legal a:hover { color: var(--blue-light); }
.footer-disclaimer {
  background: rgba(255,255,255,0.04);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-bottom: 24px;
  font-size: 12px;
  color: rgba(255,255,255,0.35);
  line-height: 1.75;
  text-align: center;
}

/* =============================================
   NOTIFICATION POPUP
   ============================================= */
#purchase-notif {
  position: fixed;
  bottom: 20px;
  left: 20px;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 9000;
  max-width: 300px;
  width: calc(100% - 40px);
  border-left: 4px solid var(--green);
  transform: translateX(-120%);
  transition: transform 0.4s cubic-bezier(.34,1.56,.64,1);
  cursor: pointer;
}
#purchase-notif.show { transform: translateX(0); }
.notif-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--navy));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 16px;
  flex-shrink: 0;
}
.notif-text { flex: 1; }
.notif-name { font-family: var(--font-heading); font-size: 14px; font-weight: 700; color: var(--navy); }
.notif-msg { font-size: 12px; color: var(--gray-600); }
.notif-time { font-size: 11px; color: var(--gray-400); }
.notif-close {
  font-size: 16px;
  color: var(--gray-400);
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  flex-shrink: 0;
}

/* Exit Intent / Promo Popup */
#exit-popup {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
#exit-popup.show { opacity: 1; pointer-events: all; }
.exit-popup-inner {
  background: var(--white);
  border-radius: var(--radius-lg);
  max-width: 500px;
  width: 100%;
  padding: 40px 32px;
  text-align: center;
  position: relative;
  animation: popupBounce 0.4s cubic-bezier(.34,1.56,.64,1);
}
@keyframes popupBounce {
  from { transform: scale(0.85); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}
.exit-popup-close {
  position: absolute;
  top: 14px;
  right: 16px;
  background: none;
  border: none;
  font-size: 22px;
  color: var(--gray-400);
  cursor: pointer;
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  transition: background var(--transition);
}
.exit-popup-close:hover { background: var(--gray-100); }
.exit-popup-tag {
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--red);
  margin-bottom: 8px;
}
.exit-popup-inner h2 { font-size: clamp(22px,5vw,30px); color: var(--navy); margin-bottom: 12px; }
.exit-popup-inner p { color: var(--gray-600); margin-bottom: 24px; font-size: 15px; }
.popup-price { margin-bottom: 24px; }
.popup-price .old { font-size: 20px; text-decoration: line-through; color: var(--gray-400); font-family: var(--font-heading); }
.popup-price .new { font-size: 40px; font-weight: 900; color: var(--navy); font-family: var(--font-heading); }

/* Mobile banner popup */
@media (max-width: 575px) {
  #exit-popup { align-items: flex-end; padding: 0; }
  .exit-popup-inner { border-radius: var(--radius-lg) var(--radius-lg) 0 0; padding: 32px 24px; }
}

/* =============================================
   SCROLL TO TOP
   ============================================= */
#scroll-top {
  position: fixed;
  bottom: 90px;
  right: 20px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--blue);
  color: var(--white);
  border: none;
  cursor: pointer;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  z-index: 8000;
  opacity: 0;
  pointer-events: none;
  transform: translateY(20px);
  transition: opacity var(--transition), transform var(--transition);
}
#scroll-top.show { opacity: 1; pointer-events: all; transform: translateY(0); }
#scroll-top:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }

/* =============================================
   ANIMATION UTILITIES
   ============================================= */
.fade-in { opacity: 0; transform: translateY(28px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }
.fade-in-left { opacity: 0; transform: translateX(-30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in-left.visible { opacity: 1; transform: translateX(0); }
.fade-in-right { opacity: 0; transform: translateX(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in-right.visible { opacity: 1; transform: translateX(0); }

/* Stagger delays */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* =============================================
   MISC HELPERS
   ============================================= */
.divider { border: none; border-top: 1px solid var(--gray-200); margin: 0; }
.mt-4 { margin-top: 16px; }
.mb-4 { margin-bottom: 16px; }
.text-navy { color: var(--navy); }
.text-blue { color: var(--blue); }
.text-gold { color: var(--gold); }
.text-green { color: var(--green); }
.bold { font-weight: 700; }
.img-placeholder {
  width: 100%;
  background: linear-gradient(135deg, #E5E7EB, #D1D5DB);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-400);
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 600;
  min-height: 200px;
}

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