/* =========================================
   NERVYVIA - STYLES.CSS
   Design: Medical Premium with Bold Accents
   ========================================= */

/* === GOOGLE 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 {
  --primary: #1a3a6e;
  --primary-dark: #0f2347;
  --accent: #e63946;
  --accent-light: #ff6b6b;
  --gold: #d4a017;
  --success: #16a34a;
  --bg-white: #ffffff;
  --bg-light: #f0f4ff;
  --bg-dark: #0d1b3e;
  --text-dark: #1a202c;
  --text-body: #374151;
  --text-muted: #6b7280;
  --border: #e2e8f0;
  --shadow-sm: 0 2px 8px rgba(26,58,110,0.08);
  --shadow-md: 0 8px 24px rgba(26,58,110,0.14);
  --shadow-lg: 0 16px 48px rgba(26,58,110,0.18);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Open Sans', sans-serif;
  --transition: 0.3s ease;
  --container-max: 1200px;
}

/* === 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(--text-body);
  background: var(--bg-white);
  line-height: 1.7;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
input, select, textarea { font-size: 16px; }

/* === UTILITY === */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
}
.section-pad { padding: 64px 0; }
.text-center { text-align: center; }
.fade-in { opacity: 0; transform: translateY(32px); transition: opacity 0.7s ease, transform 0.7s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }
.slide-up { opacity: 0; transform: translateY(48px); transition: opacity 0.6s ease, transform 0.6s ease; }
.slide-up.visible { opacity: 1; transform: translateY(0); }

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--accent) 0%, #c0392b 100%);
  color: #fff;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
  padding: 16px 36px;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  min-height: 52px;
  width: auto;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  box-shadow: 0 6px 20px rgba(230,57,70,0.35);
  transition: transform var(--transition), box-shadow var(--transition);
}
.btn-primary:hover { transform: scale(1.05); box-shadow: 0 10px 30px rgba(230,57,70,0.5); }
.btn-primary:active { transform: scale(0.98); }
.btn-full { width: 100%; }

.section-label {
  display: inline-block;
  background: rgba(26,58,110,0.08);
  color: var(--primary);
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 6px 18px;
  border-radius: 50px;
  margin-bottom: 14px;
}
.section-title {
  font-family: var(--font-heading);
  font-weight: 800;
  color: var(--primary-dark);
  line-height: 1.2;
}
.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 640px;
  margin: 14px auto 0;
  line-height: 1.8;
}

/* === NAVIGATION === */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  border-bottom: 2px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition), padding var(--transition);
  padding: 18px 0;
}
#navbar.scrolled {
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-md);
  padding: 10px 0;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav-logo {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 1.5rem;
  color: var(--primary-dark);
  letter-spacing: -0.5px;
}
.nav-logo span { color: var(--accent); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-links a {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-dark);
  transition: color var(--transition);
  letter-spacing: 0.3px;
}
.nav-links a:hover { color: var(--accent); }
.nav-cta { font-size: 0.85rem !important; padding: 12px 24px !important; min-height: 44px; }
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
  min-width: 44px; min-height: 44px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2.5px;
  background: var(--primary-dark);
  border-radius: 4px;
  transition: transform var(--transition), opacity var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* mobile nav drawer */
.mobile-menu {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: var(--bg-white);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  padding: 40px 24px;
  opacity: 0;
  transform: translateX(100%);
  transition: opacity 0.35s ease, transform 0.35s ease;
}
.mobile-menu.open { opacity: 1; transform: translateX(0); display: flex; }
.mobile-menu a {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--primary-dark);
  transition: color var(--transition);
}
.mobile-menu a:hover { color: var(--accent); }
.mobile-close {
  position: absolute;
  top: 20px; right: 20px;
  background: none; border: none;
  font-size: 2rem; cursor: pointer;
  color: var(--primary-dark);
  min-width: 44px; min-height: 44px;
  display: flex; align-items: center; justify-content: center;
}

/* === HERO SECTION === */
#hero {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--bg-dark) 0%, #1a3a6e 50%, #0d2952 100%);
  display: flex;
  align-items: center;
  padding-top: 80px;
  position: relative;
  overflow: hidden;
}
#hero::before {
  content: '';
  position: absolute;
  top: -100px; right: -100px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(230,57,70,0.15) 0%, transparent 70%);
  pointer-events: none;
}
#hero::after {
  content: '';
  position: absolute;
  bottom: -80px; left: -80px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(26,58,110,0.3) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 2;
}
.hero-img-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-img-glow {
  position: absolute;
  width: 320px; height: 320px;
  background: radial-gradient(circle, rgba(230,57,70,0.25) 0%, transparent 70%);
  border-radius: 50%;
  animation: pulse-glow 3s ease-in-out infinite;
}
@keyframes pulse-glow {
  0%, 100% { transform: scale(1); opacity: 0.7; }
  50% { transform: scale(1.15); opacity: 1; }
}
.hero-bottle {
  position: relative;
  z-index: 2;
  max-height: 440px;
  width: auto;
  filter: drop-shadow(0 20px 60px rgba(0,0,0,0.5));
  animation: float-bottle 5s ease-in-out infinite;
}
@keyframes float-bottle {
  0%, 100% { transform: translateY(0) rotate(-1deg); }
  50% { transform: translateY(-16px) rotate(1deg); }
}
.hero-badge {
  position: absolute;
  background: var(--accent);
  color: #fff;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.75rem;
  padding: 8px 14px;
  border-radius: 50px;
  box-shadow: 0 4px 12px rgba(230,57,70,0.4);
  white-space: nowrap;
  letter-spacing: 0.5px;
}
.hero-badge.top { top: 20%; right: -10px; animation: badge-bounce 2.5s ease-in-out infinite 0.5s; }
.hero-badge.bot { bottom: 20%; left: -10px; background: var(--gold); animation: badge-bounce 2.5s ease-in-out infinite 1s; }
@keyframes badge-bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}
.hero-content { color: #fff; }
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50px;
  padding: 8px 18px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 20px;
  backdrop-filter: blur(8px);
}
.hero-eyebrow .dot {
  width: 8px; height: 8px;
  background: var(--accent-light);
  border-radius: 50%;
  animation: blink-dot 1.5s ease-in-out infinite;
}
@keyframes blink-dot {
  0%, 100% { opacity: 1; } 50% { opacity: 0.3; }
}
.hero-h1 {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(28px, 4vw, 52px);
  line-height: 1.1;
  margin-bottom: 20px;
}
.hero-h1 em { color: var(--accent-light); font-style: normal; }
.hero-desc {
  font-size: 1.05rem;
  line-height: 1.8;
  color: rgba(255,255,255,0.85);
  margin-bottom: 28px;
  max-width: 520px;
}
.hero-desc strong { color: #fff; }
.hero-stars {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.8);
}
.hero-stars .stars { color: var(--gold); font-size: 1.1rem; letter-spacing: 2px; }
.hero-cta-group { display: flex; flex-direction: column; gap: 14px; }
.hero-cta-group .btn-primary {
  font-size: 1.1rem;
  padding: 18px 40px;
}
.hero-guarantee {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.7);
}
.hero-guarantee svg { color: var(--success); flex-shrink: 0; }

/* === WHY CHOOSE US === */
#why-choose { background: var(--bg-light); }
.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.trust-card {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: default;
}
.trust-card:hover { transform: scale(1.05) rotate(1deg); box-shadow: var(--shadow-lg); }
.trust-card img { width: 80px; height: 80px; object-fit: contain; margin: 0 auto 18px; }
.trust-card h3 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--primary-dark);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.trust-card p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.7; }

/* === WHAT IS === */
#what-is { background: var(--bg-white); }
.what-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.what-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
}
.what-img img { width: 100%; height: auto; }
.what-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26,58,110,0.08) 0%, transparent 60%);
  border-radius: var(--radius-lg);
  pointer-events: none;
}
.what-content .section-title { font-size: clamp(22px, 3vw, 36px); text-align: left; }
.what-content .section-label { margin-bottom: 10px; }
.what-content p { margin-top: 16px; color: var(--text-body); }
.what-highlights {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.what-highlight {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 18px;
  background: var(--bg-light);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--accent);
}
.what-highlight .icon { font-size: 1.3rem; flex-shrink: 0; }
.what-highlight p { font-size: 0.92rem; margin: 0; }

/* === HOW IT WORKS === */
#how-works { background: var(--bg-dark); }
#how-works .section-title { color: #fff; }
#how-works .section-label { background: rgba(255,255,255,0.1); color: rgba(255,255,255,0.8); }
.accordion-list { margin-top: 48px; display: flex; flex-direction: column; gap: 12px; }
.accordion-item {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: background var(--transition);
}
.accordion-item.active { background: rgba(255,255,255,0.1); }
.accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 28px;
  cursor: pointer;
  min-height: 60px;
  user-select: none;
}
.accordion-header h3 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 14px;
}
.accordion-header .num {
  width: 34px; height: 34px;
  background: var(--accent);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
}
.accordion-icon {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: transform var(--transition), background var(--transition);
  font-size: 1rem;
  color: #fff;
}
.accordion-item.active .accordion-icon { transform: rotate(45deg); background: var(--accent); }
.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.45s ease;
}
.accordion-body-inner {
  padding: 0 28px 24px;
  color: rgba(255,255,255,0.78);
  font-size: 0.97rem;
  line-height: 1.8;
}
.accordion-body-inner strong { color: #fff; }

/* === REVIEWS === */
#reviews { background: var(--bg-light); }
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 48px;
}
.review-card {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  position: relative;
}
.review-card::before {
  content: '"';
  position: absolute;
  top: 20px; right: 24px;
  font-size: 5rem;
  color: var(--bg-light);
  font-family: Georgia, serif;
  line-height: 1;
}
.review-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}
.review-avatar {
  width: 60px; height: 60px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--accent);
}
.review-meta h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--primary-dark);
}
.review-meta span { font-size: 0.82rem; color: var(--text-muted); }
.review-stars { color: var(--gold); font-size: 1rem; letter-spacing: 2px; margin-bottom: 12px; }
.review-text { font-size: 0.93rem; color: var(--text-body); line-height: 1.75; }

/* === PRICING === */
.pricing-section { background: var(--bg-white); }
.countdown-wrap {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  border-radius: var(--radius-md);
  padding: 24px 32px;
  margin: 32px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.countdown-label {
  font-family: var(--font-heading);
  font-weight: 700;
  color: #fff;
  font-size: 1rem;
}
.countdown-timer {
  display: flex;
  align-items: center;
  gap: 8px;
}
.timer-block {
  background: var(--accent);
  color: #fff;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 2rem;
  width: 64px; height: 64px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 12px rgba(230,57,70,0.4);
}
.timer-sep { color: #fff; font-weight: 800; font-size: 1.8rem; }
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 32px;
}
.price-card {
  background: var(--bg-white);
  border: 2px solid var(--border);
  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: var(--shadow-lg); }
.price-card.popular {
  border-color: var(--accent);
  background: linear-gradient(160deg, #fff9f9 0%, #fff 100%);
  transform: scale(1.04);
}
.price-card.popular:hover { transform: scale(1.04) translateY(-6px); }
.price-badge {
  position: absolute;
  top: -14px; left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #fff;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.78rem;
  padding: 6px 20px;
  border-radius: 50px;
  white-space: nowrap;
  letter-spacing: 0.5px;
}
.price-label {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.75rem;
  letter-spacing: 2px;
  color: var(--primary);
  text-transform: uppercase;
  margin-bottom: 6px;
}
.price-qty {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--primary-dark);
  margin-bottom: 4px;
}
.price-supply { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 16px; }
.price-img { width: 120px; margin: 0 auto 18px; }
.price-num {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 2.8rem;
  color: var(--accent);
  line-height: 1;
}
.price-per { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 6px; }
.price-total {
  font-size: 0.95rem;
  margin-bottom: 8px;
  font-weight: 600;
}
.price-total s { color: var(--text-muted); }
.price-total strong { color: var(--success); }
.price-badges { display: flex; flex-direction: column; gap: 6px; margin-bottom: 20px; }
.price-tag {
  background: var(--bg-light);
  color: var(--primary);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.78rem;
  padding: 6px 14px;
  border-radius: 50px;
  letter-spacing: 0.5px;
}
.price-tag.green { background: #d1fae5; color: var(--success); }
.cards-img { height: 30px; object-fit: contain; margin: 12px auto 0; }
.five-star { max-width: 200px; margin: 32px auto 0; }

/* === BONUS === */
#bonus { background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%); }
#bonus .section-title { color: #fff; }
#bonus .section-label { background: rgba(255,255,255,0.12); color: rgba(255,255,255,0.85); }
.bonus-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-top: 48px;
}
.bonus-card {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  text-align: center;
  backdrop-filter: blur(8px);
  transition: transform var(--transition), background var(--transition);
}
.bonus-card:hover { transform: translateY(-6px); background: rgba(255,255,255,0.14); }
.bonus-card img { max-height: 180px; object-fit: contain; margin: 0 auto 20px; }
.bonus-card .tag {
  display: inline-block;
  background: var(--gold);
  color: #000;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.72rem;
  padding: 4px 14px;
  border-radius: 50px;
  letter-spacing: 1px;
  margin-bottom: 10px;
}
.bonus-card h3 {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.1rem;
  color: #fff;
  margin-bottom: 10px;
}
.bonus-card p { font-size: 0.9rem; color: rgba(255,255,255,0.75); }
.bonus-card .value {
  margin-top: 14px;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  color: var(--gold);
  font-weight: 700;
}
.bonus-card .value s { color: rgba(255,255,255,0.5); }

/* === INGREDIENTS === */
#ingredients { background: var(--bg-light); }
.ingredients-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 48px;
}
.ingredient-card {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
}
.ingr-header {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 22px;
  cursor: pointer;
  min-height: 60px;
  background: var(--bg-white);
  transition: background var(--transition);
}
.ingredient-card.active .ingr-header { background: var(--bg-light); }
.ingr-num {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.9rem;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.ingr-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--primary-dark);
  flex: 1;
}
.ingr-arrow { color: var(--text-muted); font-size: 0.9rem; transition: transform var(--transition); }
.ingredient-card.active .ingr-arrow { transform: rotate(180deg); }
.ingr-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.ingr-body-inner {
  padding: 0 22px 20px;
  font-size: 0.91rem;
  color: var(--text-body);
  line-height: 1.75;
}
.ingr-body-inner strong { color: var(--primary); }

/* === SCIENTIFIC EVIDENCE === */
#science { background: var(--bg-white); }
.science-list {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.science-item {
  background: var(--bg-light);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  border-left: 4px solid var(--primary);
}
.science-item h3 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  color: var(--primary-dark);
  margin-bottom: 10px;
}
.science-item p { font-size: 0.92rem; color: var(--text-body); line-height: 1.75; }
.science-item .ref {
  margin-top: 10px;
  font-size: 0.82rem;
  color: var(--text-muted);
  font-style: italic;
}

/* === GUARANTEE === */
#guarantee { background: var(--bg-light); }
.guarantee-inner {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 60px;
  align-items: center;
}
.guarantee-img img {
  width: 100%;
  max-width: 300px;
  margin: 0 auto;
}
.guarantee-content .section-title { font-size: clamp(22px, 3vw, 36px); text-align: left; }
.guarantee-points { margin-top: 28px; display: flex; flex-direction: column; gap: 20px; }
.guarantee-point {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  padding: 20px;
  background: var(--bg-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
}
.guar-icon {
  width: 48px; height: 48px;
  background: linear-gradient(135deg, var(--success), #22c55e);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}
.guar-text h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  color: var(--primary-dark);
  margin-bottom: 6px;
}
.guar-text p { font-size: 0.9rem; color: var(--text-body); line-height: 1.7; }

/* === BENEFITS === */
#benefits { background: var(--bg-dark); }
#benefits .section-title { color: #fff; }
#benefits .section-label { background: rgba(255,255,255,0.1); color: rgba(255,255,255,0.8); }
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 48px;
}
.benefit-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px;
  background: rgba(255,255,255,0.06);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255,255,255,0.08);
  transition: background var(--transition);
}
.benefit-item:hover { background: rgba(255,255,255,0.1); }
.benefit-check {
  width: 32px; height: 32px;
  background: var(--success);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.9rem;
  color: #fff;
  flex-shrink: 0;
  margin-top: 2px;
}
.benefit-text h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: #fff;
  font-size: 0.95rem;
  margin-bottom: 5px;
}
.benefit-text p { font-size: 0.87rem; color: rgba(255,255,255,0.7); line-height: 1.6; }

/* === FAQ === */
#faq { background: var(--bg-white); }
.faq-list { margin-top: 48px; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  min-height: 60px;
  background: var(--bg-white);
  transition: background var(--transition);
}
.faq-item.active .faq-question { background: var(--bg-light); }
.faq-question h3 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  color: var(--primary-dark);
}
.faq-icon {
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--bg-light);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  font-size: 1.2rem;
  color: var(--primary);
  transition: transform var(--transition), background var(--transition);
}
.faq-item.active .faq-icon { transform: rotate(45deg); background: var(--accent); color: #fff; }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 0.95rem;
  color: var(--text-body);
  line-height: 1.8;
}

/* === FINAL CTA === */
#final-cta {
  background: linear-gradient(135deg, var(--bg-dark) 0%, #1a3a6e 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}
#final-cta::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(230,57,70,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.final-cta-inner { position: relative; z-index: 2; }
.final-bottle {
  max-height: 300px;
  margin: 0 auto 32px;
  filter: drop-shadow(0 20px 40px rgba(0,0,0,0.4));
  animation: float-bottle 5s ease-in-out infinite;
}
.final-cta-inner h2 {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(24px, 4vw, 44px);
  color: #fff;
  margin-bottom: 16px;
}
.final-price {
  margin-bottom: 28px;
}
.final-price .old {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.5);
  text-decoration: line-through;
  margin-bottom: 4px;
}
.final-price .new {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 2.2rem;
  color: var(--gold);
}
.final-cta-inner .btn-primary {
  font-size: 1.2rem;
  padding: 20px 56px;
}

/* === FOOTER === */
footer {
  background: var(--primary-dark);
  padding: 56px 0 32px;
  color: rgba(255,255,255,0.65);
}
.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand .nav-logo { margin-bottom: 14px; display: block; }
.footer-brand p { font-size: 0.88rem; line-height: 1.7; max-width: 300px; }
.footer-col h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: #fff;
  font-size: 0.9rem;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.6);
  transition: color var(--transition);
}
.footer-col ul li a:hover { color: #fff; }
.social-links { display: flex; gap: 12px; margin-top: 20px; }
.social-link {
  width: 40px; height: 40px;
  background: rgba(255,255,255,0.08);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  color: rgba(255,255,255,0.7);
  transition: background var(--transition), color var(--transition);
  text-decoration: none;
}
.social-link:hover { background: var(--accent); color: #fff; }
.footer-bottom {
  margin-top: 32px;
  text-align: center;
}
.footer-bottom .legal-links {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-bottom: 16px;
}
.footer-bottom .legal-links a {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  transition: color var(--transition);
}
.footer-bottom .legal-links a:hover { color: #fff; }
.footer-bottom .legal-links span { color: rgba(255,255,255,0.3); }
.footer-disclaimer {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.4);
  max-width: 860px;
  margin: 0 auto 16px;
  line-height: 1.7;
}
.footer-copy {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
}

/* === NOTIFICATION POPUP === */
#notif-popup {
  position: fixed;
  bottom: 24px; left: 24px;
  background: var(--bg-white);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 14px;
  max-width: 320px;
  z-index: 900;
  transform: translateX(-120%);
  transition: transform 0.5s cubic-bezier(0.34,1.56,0.64,1);
  border: 1px solid var(--border);
}
#notif-popup.show { transform: translateX(0); }
.notif-avatar {
  width: 44px; height: 44px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}
.notif-text p { font-size: 0.85rem; color: var(--text-dark); line-height: 1.5; }
.notif-text strong { color: var(--primary-dark); }
.notif-text .time { font-size: 0.75rem; color: var(--text-muted); }
.notif-close {
  position: absolute;
  top: 8px; right: 10px;
  background: none; border: none;
  font-size: 1rem; cursor: pointer;
  color: var(--text-muted);
  min-width: 24px; min-height: 24px;
}

/* === EXIT POPUP === */
#exit-popup {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
}
#exit-popup.show { opacity: 1; pointer-events: all; }
.exit-modal {
  background: #fff;
  border-radius: var(--radius-xl);
  padding: 48px 40px;
  max-width: 500px;
  width: 90%;
  text-align: center;
  position: relative;
  transform: scale(0.9);
  transition: transform 0.35s cubic-bezier(0.34,1.56,0.64,1);
}
#exit-popup.show .exit-modal { transform: scale(1); }
.exit-close {
  position: absolute;
  top: 16px; right: 18px;
  background: none; border: none;
  font-size: 1.5rem; cursor: pointer;
  color: var(--text-muted);
  text-decoration: none;
  min-width: 44px; min-height: 44px;
  display: flex; align-items: center; justify-content: center;
}
.exit-modal .emoji { font-size: 3rem; margin-bottom: 12px; }
.exit-modal h2 {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 1.6rem;
  color: var(--primary-dark);
  margin-bottom: 12px;
}
.exit-modal p { color: var(--text-muted); margin-bottom: 24px; }
.exit-modal .btn-primary { width: 100%; }
.exit-modal .skip {
  display: block;
  margin-top: 14px;
  font-size: 0.85rem;
  color: var(--text-muted);
  cursor: pointer;
}

/* === SCROLL TO TOP === */
#scroll-top {
  position: fixed;
  bottom: 24px; right: 24px;
  width: 56px; height: 56px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  cursor: pointer;
  z-index: 800;
  border: none;
  box-shadow: var(--shadow-md);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition), transform var(--transition), background var(--transition);
}
#scroll-top.show { opacity: 1; transform: translateY(0); }
#scroll-top:hover { background: var(--accent); }

/* === MOBILE RESPONSIVE === */
@media (max-width: 1023px) {
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: 1fr; max-width: 400px; margin-left: auto; margin-right: auto; }
  .price-card.popular { transform: scale(1); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 767px) {
  .section-pad { padding: 48px 0; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .hero-inner { grid-template-columns: 1fr; gap: 32px; text-align: center; }
  .hero-img-wrap { order: -1; }
  .hero-bottle { max-height: 280px; }
  .hero-badge.top { right: 0; }
  .hero-badge.bot { left: 0; }
  .hero-desc { margin: 0 auto 24px; }
  .hero-stars { justify-content: center; }
  .hero-cta-group { align-items: center; }
  .hero-cta-group .btn-primary { width: 100%; }
  .hero-guarantee { justify-content: center; }
  .what-grid { grid-template-columns: 1fr; }
  .what-content .section-title { text-align: center; }
  .what-content .section-label { display: block; text-align: center; }
  .reviews-grid { grid-template-columns: 1fr; }
  .bonus-grid { grid-template-columns: 1fr; }
  .ingredients-grid { grid-template-columns: 1fr; }
  .benefits-grid { grid-template-columns: 1fr; }
  .guarantee-inner { grid-template-columns: 1fr; text-align: center; }
  .guarantee-content .section-title { text-align: center; }
  .footer-inner { grid-template-columns: 1fr; gap: 28px; }
  .countdown-wrap { flex-direction: column; text-align: center; }
  #notif-popup { left: 12px; right: 12px; max-width: calc(100% - 24px); bottom: 16px; }
  .exit-modal { padding: 36px 24px; }
}

@media (max-width: 575px) {
  .hero-h1 { font-size: 26px; }
  .timer-block { font-size: 1.5rem; width: 52px; height: 52px; }
  .price-num { font-size: 2.2rem; }
}

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