/* =============================================
   NERVECALM - MAIN STYLESHEET
   Medical Professional Design — Deep Navy + Teal
   Font: Playfair Display (headings) + Source Sans 3 (body)
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@700;900&family=Montserrat:wght@700;800;900&family=Source+Sans+3:wght@400;500;600&display=swap');

/* ---- CSS VARIABLES ---- */
:root {
  --navy: #0D2137;
  --navy-light: #163350;
  --teal: #0BA4A4;
  --teal-light: #14C8C8;
  --gold: #D4A017;
  --white: #FFFFFF;
  --off-white: #F4F8FB;
  --gray: #6B7A8D;
  --light-gray: #E8EEF4;
  --red: #E53E3E;
  --green: #22C55E;
  --text-dark: #0D2137;
  --text-body: #374151;
  --shadow-sm: 0 2px 8px rgba(13,33,55,0.10);
  --shadow-md: 0 8px 30px rgba(13,33,55,0.15);
  --shadow-lg: 0 20px 60px rgba(13,33,55,0.20);
  --radius: 16px;
  --radius-sm: 8px;
  --transition: 0.3s ease;
}

/* ---- 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: 'Source Sans 3', 'Open Sans', sans-serif;
  color: var(--text-body);
  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; }

/* ---- TYPOGRAPHY ---- */
h1,h2,h3,h4,h5 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  color: var(--navy);
  line-height: 1.2;
}
h1 { font-size: clamp(26px, 5vw, 52px); }
h2 { font-size: clamp(22px, 4vw, 38px); }
h3 { font-size: clamp(18px, 3vw, 24px); }
h4 { font-size: clamp(16px, 2.5vw, 20px); }
p { font-size: clamp(15px, 2vw, 17px); line-height: 1.75; }

/* ---- UTILITY ---- */
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section-title { text-align: center; margin-bottom: 16px; }
.section-subtitle { text-align: center; color: var(--gray); font-size: clamp(15px,2vw,18px); margin-bottom: 48px; max-width: 680px; margin-left: auto; margin-right: auto; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--teal), #07878A);
  color: var(--white);
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: clamp(15px, 2vw, 18px);
  padding: 16px 36px;
  border-radius: 50px;
  border: none; cursor: pointer;
  min-height: 52px;
  transition: transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 6px 24px rgba(11,164,164,0.35);
  text-align: center;
  gap: 8px;
}
.btn:hover { transform: scale(1.05); box-shadow: 0 10px 36px rgba(11,164,164,0.50); }
.btn:active { transform: scale(0.97); }
.btn-gold {
  background: linear-gradient(135deg, var(--gold), #B8860B);
  box-shadow: 0 6px 24px rgba(212,160,23,0.35);
}
.btn-gold:hover { box-shadow: 0 10px 36px rgba(212,160,23,0.50); }
.btn-full { width: 100%; }
.strikethrough { text-decoration: line-through; color: var(--gray); }
.badge {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 50px;
  font-size: 12px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  letter-spacing: 0.5px;
}
.badge-teal { background: rgba(11,164,164,0.12); color: var(--teal); }
.badge-gold { background: rgba(212,160,23,0.15); color: var(--gold); }
.badge-green { background: rgba(34,197,94,0.12); color: #16A34A; }

/* ---- FADE-IN ANIMATION ---- */
.fade-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }
.fade-up.delay-1 { transition-delay: 0.1s; }
.fade-up.delay-2 { transition-delay: 0.2s; }
.fade-up.delay-3 { transition-delay: 0.3s; }
.fade-up.delay-4 { transition-delay: 0.4s; }
@media (prefers-reduced-motion: reduce) {
  .fade-up { opacity: 1; transform: none; transition: none; }
}

/* =============================================
   SECTION 1: NAVIGATION
   ============================================= */
#navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(13,33,55,0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 14px 0;
  transition: padding var(--transition), box-shadow var(--transition);
  border-bottom: 1px solid rgba(255,255,255,0.07);
}
#navbar.scrolled { padding: 10px 0; box-shadow: var(--shadow-md); }
.nav-inner {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.nav-logo {
  font-family: 'Montserrat', sans-serif;
  font-weight: 900;
  font-size: 22px;
  color: var(--white);
  display: flex; align-items: center; gap: 8px;
  flex-shrink: 0;
}
.nav-logo span { color: var(--teal); }
.nav-links {
  display: flex; align-items: center; gap: 32px;
}
.nav-links a {
  color: rgba(255,255,255,0.8);
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.3px;
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--teal); }
.nav-cta { padding: 10px 24px; font-size: 14px; min-height: 42px; }
.hamburger {
  display: none;
  flex-direction: column; gap: 5px; cursor: pointer; padding: 4px;
  border: none; background: none;
}
.hamburger span {
  display: block; width: 26px; height: 2px;
  background: var(--white); border-radius: 2px;
  transition: all 0.3s ease;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.mobile-menu {
  display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: var(--navy); z-index: 999;
  flex-direction: column; align-items: center; justify-content: center; gap: 32px;
  transform: translateX(100%); transition: transform 0.35s cubic-bezier(0.4,0,0.2,1);
}
.mobile-menu.open { transform: translateX(0); }
.mobile-menu a {
  color: var(--white); font-family: 'Montserrat', sans-serif;
  font-weight: 800; font-size: 22px; transition: color var(--transition);
}
.mobile-menu a:hover { color: var(--teal); }
.mobile-menu-close {
  position: absolute; top: 20px; right: 20px;
  background: none; border: none; color: var(--white);
  font-size: 32px; cursor: pointer; line-height: 1;
}

/* =============================================
   SECTION 2: HERO
   ============================================= */
#hero {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 50%, #1A4060 100%);
  display: flex; align-items: center;
  padding-top: 80px;
  position: relative;
  overflow: hidden;
}
#hero::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 50% at 70% 50%, rgba(11,164,164,0.12) 0%, transparent 70%);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 60px;
  padding: 80px 0;
  position: relative; z-index: 1;
}
.hero-image-wrap {
  position: relative; display: flex; justify-content: center; align-items: center;
}
.hero-bottle {
  width: 100%; max-width: 380px;
  animation: heroFloat 4s ease-in-out infinite;
  filter: drop-shadow(0 30px 60px rgba(11,164,164,0.3));
}
@keyframes heroFloat {
  0%,100% { transform: translateY(0px) rotate(-2deg); }
  50% { transform: translateY(-18px) rotate(2deg); }
}
.hero-glow {
  position: absolute; width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(11,164,164,0.20) 0%, transparent 70%);
  border-radius: 50%; top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  animation: glowPulse 3s ease-in-out infinite;
}
@keyframes glowPulse {
  0%,100% { transform: translate(-50%,-50%) scale(1); opacity: 0.6; }
  50% { transform: translate(-50%,-50%) scale(1.2); opacity: 1; }
}
.hero-content { color: var(--white); }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(11,164,164,0.15);
  border: 1px solid rgba(11,164,164,0.35);
  border-radius: 50px; padding: 6px 16px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700; font-size: 13px;
  color: var(--teal-light);
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}
.hero-content h1 {
  color: var(--white); margin-bottom: 20px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.hero-content h1 em {
  font-style: normal;
  color: var(--teal-light);
}
.hero-content p {
  color: rgba(255,255,255,0.82);
  margin-bottom: 16px;
  font-size: clamp(15px, 2vw, 17px);
}
.hero-stats {
  display: flex; gap: 24px; margin: 28px 0;
  flex-wrap: wrap;
}
.hero-stat {
  display: flex; flex-direction: column;
  border-left: 3px solid var(--teal);
  padding-left: 12px;
}
.hero-stat strong {
  font-family: 'Montserrat', sans-serif;
  font-weight: 900; font-size: 22px; color: var(--teal-light);
}
.hero-stat span { font-size: 13px; color: rgba(255,255,255,0.65); }
.hero-cta-wrap { display: flex; flex-direction: column; gap: 12px; align-items: flex-start; }
.hero-cta { font-size: clamp(15px, 2vw, 18px); padding: 18px 40px; }
.hero-note {
  font-size: 13px; color: rgba(255,255,255,0.55);
  display: flex; align-items: center; gap: 6px;
}

/* =============================================
   SECTION 3: WHY CHOOSE US
   ============================================= */
#why-choose {
  padding: 90px 0;
  background: var(--off-white);
}
.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.why-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 36px 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--light-gray);
  transition: transform var(--transition), box-shadow var(--transition);
}
.why-card:hover {
  transform: scale(1.05) rotate(1deg);
  box-shadow: var(--shadow-lg);
}
.why-card img {
  width: 80px; height: 80px; object-fit: contain;
  margin: 0 auto 16px;
}
.why-card h3 {
  font-size: 15px; font-weight: 900;
  text-transform: uppercase; letter-spacing: 0.5px;
  margin-bottom: 10px; color: var(--navy);
}
.why-card p { font-size: 14px; color: var(--gray); line-height: 1.6; }

/* =============================================
   SECTION 4: WHAT IS NERVECALM
   ============================================= */
#what-is {
  padding: 90px 0;
  background: var(--white);
}
.what-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 70px;
}
.what-image-wrap { position: relative; }
.what-image-wrap img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}
.what-image-badge {
  position: absolute; bottom: -20px; right: -20px;
  background: var(--teal);
  color: var(--white);
  font-family: 'Montserrat', sans-serif;
  font-weight: 900; font-size: 13px;
  padding: 14px 20px; border-radius: var(--radius);
  text-align: center;
  box-shadow: var(--shadow-md);
}
.what-image-badge strong { display: block; font-size: 22px; }
.what-content h2 { margin-bottom: 20px; }
.what-content p { margin-bottom: 16px; color: var(--text-body); }
.what-pills {
  display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px;
}
.what-pill {
  background: rgba(11,164,164,0.10);
  color: var(--navy-light);
  border: 1px solid rgba(11,164,164,0.25);
  padding: 7px 16px; border-radius: 50px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700; font-size: 13px;
}

/* =============================================
   SECTION 5: HOW IT WORKS
   ============================================= */
#how-it-works {
  padding: 90px 0;
  background: var(--navy);
  position: relative;
  overflow: hidden;
}
#how-it-works::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 100%, rgba(11,164,164,0.08) 0%, transparent 70%);
}
#how-it-works .section-title { color: var(--white); }
#how-it-works .section-subtitle { color: rgba(255,255,255,0.65); }
.accordion { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; position: relative; z-index:1; }
.accordion-item {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.accordion-header {
  width: 100%; background: none; border: none; cursor: pointer;
  padding: 20px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  min-height: 64px;
  color: var(--white);
  font-family: 'Montserrat', sans-serif;
  font-weight: 700; font-size: clamp(15px,2vw,17px);
  text-align: left;
  transition: background var(--transition);
}
.accordion-header:hover { background: rgba(255,255,255,0.08); }
.accordion-header.active { background: rgba(11,164,164,0.15); color: var(--teal-light); }
.accordion-icon {
  width: 28px; height: 28px; flex-shrink: 0;
  background: rgba(11,164,164,0.2);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 900;
  transition: transform var(--transition), background var(--transition);
  color: var(--teal);
}
.accordion-header.active .accordion-icon { transform: rotate(45deg); background: var(--teal); color: var(--white); }
.accordion-body {
  max-height: 0; overflow: hidden;
  transition: max-height 0.45s cubic-bezier(0.4,0,0.2,1), padding 0.3s ease;
  padding: 0 24px;
  color: rgba(255,255,255,0.75); font-size: 15px; line-height: 1.75;
}
.accordion-body.open { max-height: 300px; padding: 4px 24px 24px; }

/* =============================================
   SECTION 6: REVIEWS
   ============================================= */
#reviews {
  padding: 90px 0;
  background: var(--off-white);
}
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 48px;
}
.review-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 36px 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--light-gray);
  transition: transform var(--transition), box-shadow var(--transition);
}
.review-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.review-header { display: flex; align-items: center; gap: 16px; margin-bottom: 16px; }
.review-avatar {
  width: 64px; height: 64px; border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--teal);
  flex-shrink: 0;
}
.review-meta h4 { font-size: 16px; margin-bottom: 2px; }
.review-meta span { font-size: 13px; color: var(--gray); }
.review-stars { color: #F59E0B; font-size: 18px; margin-bottom: 4px; }
.review-verified {
  font-size: 12px; color: var(--green);
  font-family: 'Montserrat', sans-serif; font-weight: 700;
  display: flex; align-items: center; gap: 4px;
}
.review-title { font-size: 16px; font-weight: 700; color: var(--navy); margin-bottom: 10px; }
.review-text { font-size: 15px; color: var(--text-body); line-height: 1.7; }

/* =============================================
   PRICING SECTION (used in sections 7 & 13)
   ============================================= */
.pricing-section {
  padding: 90px 0;
  background: var(--white);
}
.pricing-section.alt { background: var(--off-white); }
.countdown-wrap {
  display: flex; align-items: center; justify-content: center; gap: 12px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}
.countdown-label {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700; font-size: clamp(14px,2vw,16px);
  color: var(--red); text-transform: uppercase; letter-spacing: 0.5px;
}
.countdown-timer {
  display: flex; align-items: center; gap: 8px;
}
.countdown-block {
  background: var(--navy);
  color: var(--white);
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  text-align: center;
  min-width: 60px;
}
.countdown-block .time {
  font-family: 'Montserrat', sans-serif;
  font-weight: 900; font-size: clamp(22px,4vw,32px);
  color: var(--teal-light); display: block;
}
.countdown-block .label {
  font-size: 11px; color: rgba(255,255,255,0.5);
  font-family: 'Montserrat', sans-serif; font-weight: 700;
  text-transform: uppercase;
}
.countdown-sep { font-size: 28px; color: var(--navy); font-weight: 900; }

/* Pricing single image */
.pricing-single-img {
  text-align: center;
  max-width: 1100px;
  margin: 0 auto;
}
.pricing-single-img a { display: block; }
.pricing-single-img img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
}
.pricing-single-img img:hover {
  transform: scale(1.01);
  box-shadow: 0 30px 80px rgba(13,33,55,0.22);
}

/* =============================================
   SECTION 8: BONUSES
   ============================================= */
#bonuses {
  padding: 90px 0;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  position: relative;
}
#bonuses .section-title { color: var(--white); }
#bonuses .section-subtitle { color: rgba(255,255,255,0.65); }
.bonus-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  max-width: 860px;
  margin: 0 auto;
}
.bonus-card {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: center;
  transition: background var(--transition), transform var(--transition);
}
.bonus-card:hover { background: rgba(11,164,164,0.12); transform: translateY(-6px); }
.bonus-card img { width: 160px; margin: 0 auto 20px; border-radius: var(--radius-sm); box-shadow: var(--shadow-md); }
.bonus-card h3 { color: var(--white); margin-bottom: 10px; }
.bonus-tag {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(11,164,164,0.2); border: 1px solid rgba(11,164,164,0.4);
  color: var(--teal-light); padding: 4px 14px;
  border-radius: 50px; font-size: 12px;
  font-family: 'Montserrat', sans-serif; font-weight: 700;
  margin-bottom: 12px;
}
.bonus-card p { color: rgba(255,255,255,0.7); font-size: 14px; line-height: 1.65; }
.bonus-retail { color: rgba(255,255,255,0.5); text-decoration: line-through; font-size: 13px; margin-top: 8px; }
.bonus-free { color: var(--teal-light); font-family: 'Montserrat', sans-serif; font-weight: 800; font-size: 15px; }

/* =============================================
   SECTION 9: INGREDIENTS
   ============================================= */
#ingredients {
  padding: 90px 0;
  background: var(--off-white);
}
.ingredients-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 48px;
}
.ingredient-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid var(--light-gray);
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.ingredient-card:hover { border-color: var(--teal); box-shadow: var(--shadow-md); }
.ingredient-num {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--teal); color: var(--white);
  font-family: 'Montserrat', sans-serif; font-weight: 900; font-size: 14px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 12px; flex-shrink: 0;
}
.ingredient-card h4 { color: var(--navy); margin-bottom: 8px; font-size: 17px; }
.ingredient-card p { font-size: 14px; color: var(--gray); line-height: 1.65; }
.ingredient-benefit {
  margin-top: 10px;
  font-size: 13px; font-family: 'Montserrat', sans-serif; font-weight: 700;
  color: var(--teal); display: flex; align-items: center; gap: 6px;
}

/* =============================================
   SECTION 10: SCIENCE
   ============================================= */
#science {
  padding: 90px 0;
  background: var(--white);
}
.science-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin-top: 48px;
}
.science-card {
  background: var(--off-white);
  border-radius: var(--radius);
  padding: 32px 28px;
  border-left: 4px solid var(--teal);
}
.science-card h4 { color: var(--navy); margin-bottom: 10px; font-size: 17px; }
.science-card p { font-size: 14px; color: var(--text-body); line-height: 1.7; }
.science-ref {
  margin-top: 10px; font-size: 12px; color: var(--gray);
  font-style: italic;
}

/* =============================================
   SECTION 11: GUARANTEE
   ============================================= */
#guarantee {
  padding: 90px 0;
  background: var(--off-white);
}
.guarantee-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  align-items: center;
  gap: 60px;
  background: var(--white);
  border-radius: var(--radius);
  padding: 60px;
  box-shadow: var(--shadow-md);
}
.guarantee-img img { width: 100%; border-radius: var(--radius); }
.guarantee-content h2 { margin-bottom: 16px; }
.guarantee-content > p { margin-bottom: 28px; }
.guarantee-points { display: flex; flex-direction: column; gap: 20px; }
.g-point {
  display: flex; gap: 16px; align-items: flex-start;
}
.g-icon {
  width: 44px; height: 44px; border-radius: 50%;
  background: rgba(11,164,164,0.12);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; flex-shrink: 0;
}
.g-point h4 { margin-bottom: 4px; font-size: 16px; }
.g-point p { font-size: 14px; color: var(--gray); }

/* =============================================
   SECTION 12: BENEFITS
   ============================================= */
#benefits {
  padding: 90px 0;
  background: var(--navy);
}
#benefits .section-title { color: var(--white); }
#benefits .section-subtitle { color: rgba(255,255,255,0.65); }
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 48px;
}
.benefit-item {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: background var(--transition), transform var(--transition);
}
.benefit-item:hover { background: rgba(11,164,164,0.15); transform: translateY(-4px); }
.benefit-icon { font-size: 32px; margin-bottom: 14px; }
.benefit-item h4 { color: var(--white); margin-bottom: 8px; font-size: 16px; }
.benefit-item p { color: rgba(255,255,255,0.65); font-size: 14px; line-height: 1.65; }

/* =============================================
   SECTION 14: FAQ
   ============================================= */
#faq {
  padding: 90px 0;
  background: var(--off-white);
}
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: var(--white);
  border-radius: var(--radius-sm);
  border: 1px solid var(--light-gray);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.faq-q {
  width: 100%; background: none; border: none; cursor: pointer;
  padding: 20px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  min-height: 64px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700; font-size: clamp(14px,2vw,16px);
  color: var(--navy); text-align: left;
  transition: color var(--transition);
}
.faq-q:hover { color: var(--teal); }
.faq-q.active { color: var(--teal); }
.faq-icon {
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--off-white);
  border: 2px solid var(--light-gray);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; font-weight: 900; flex-shrink: 0;
  transition: transform var(--transition), background var(--transition), border-color var(--transition);
  color: var(--navy);
}
.faq-q.active .faq-icon { transform: rotate(45deg); background: var(--teal); border-color: var(--teal); color: var(--white); }
.faq-a {
  max-height: 0; overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  padding: 0 24px;
  color: var(--text-body); font-size: 15px; line-height: 1.75;
}
.faq-a.open { max-height: 300px; padding: 4px 24px 24px; }

/* =============================================
   SECTION 15: FINAL CTA
   ============================================= */
#final-cta {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--navy) 0%, #0F2D4A 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}
#final-cta::before {
  content: '';
  position: absolute; top: -50%; left: -50%; right: -50%; bottom: -50%;
  background: radial-gradient(ellipse at center, rgba(11,164,164,0.10) 0%, transparent 60%);
}
.final-cta-content { position: relative; z-index: 1; max-width: 700px; margin: 0 auto; }
.final-cta-img {
  width: 260px; margin: 0 auto 32px;
  animation: heroFloat 4s ease-in-out infinite;
  filter: drop-shadow(0 20px 50px rgba(11,164,164,0.35));
}
#final-cta h2 { color: var(--white); margin-bottom: 16px; font-size: clamp(24px,4vw,40px); }
.final-price { margin-bottom: 32px; }
.final-price .was {
  font-size: 18px; color: rgba(255,255,255,0.5);
  text-decoration: line-through; margin-bottom: 4px;
}
.final-price .now {
  font-size: clamp(28px,5vw,48px);
  font-family: 'Montserrat', sans-serif; font-weight: 900;
  color: var(--teal-light);
}
.final-cta-btn { padding: 20px 48px; font-size: clamp(16px,2.5vw,20px); min-height: 60px; }
.final-note { color: rgba(255,255,255,0.5); font-size: 13px; margin-top: 16px; }
.final-trust {
  display: flex; justify-content: center; gap: 24px; margin-top: 24px; flex-wrap: wrap;
}
.final-trust span {
  color: rgba(255,255,255,0.6); font-size: 13px;
  font-family: 'Montserrat', sans-serif; font-weight: 700;
  display: flex; align-items: center; gap: 6px;
}

/* =============================================
   SECTION 16: FOOTER
   ============================================= */
footer {
  background: #080F18;
  color: rgba(255,255,255,0.65);
  padding: 60px 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand h3 { color: var(--white); margin-bottom: 12px; font-size: 20px; }
.footer-brand h3 span { color: var(--teal); }
.footer-brand p { font-size: 14px; line-height: 1.75; max-width: 360px; }
.footer-col h4 {
  color: var(--white); font-size: 14px; text-transform: uppercase;
  letter-spacing: 0.8px; margin-bottom: 16px;
  font-family: 'Montserrat', sans-serif; font-weight: 800;
}
.footer-col a {
  display: block; color: rgba(255,255,255,0.55);
  font-size: 14px; padding: 4px 0;
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--teal); }
.footer-social { display: flex; gap: 12px; margin-top: 20px; }
.social-btn {
  width: 40px; height: 40px; border-radius: 50%;
  background: rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center;
  font-size: 17px; transition: background var(--transition), transform var(--transition);
  color: rgba(255,255,255,0.7); cursor: pointer;
}
.social-btn:hover { background: var(--teal); transform: translateY(-3px); color: var(--white); }
.footer-divider { border: none; border-top: 1px solid rgba(255,255,255,0.08); margin: 0 0 28px; }
.footer-bottom {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px;
}
.footer-legal-links { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-legal-links a {
  color: rgba(255,255,255,0.45); font-size: 13px; transition: color var(--transition);
}
.footer-legal-links a:hover { color: var(--teal); }
.link-separator { color: rgba(255,255,255,0.2); }
.footer-copy { font-size: 13px; color: rgba(255,255,255,0.35); }
.footer-disclaimer {
  margin-top: 28px; padding-top: 28px;
  border-top: 1px solid rgba(255,255,255,0.06);
  font-size: 12px; color: rgba(255,255,255,0.3);
  line-height: 1.7;
}

/* =============================================
   PURCHASE NOTIFICATION POPUP
   ============================================= */
#purchase-notif {
  position: fixed; bottom: 24px; left: 24px; z-index: 9998;
  background: var(--white); border-radius: var(--radius);
  padding: 14px 18px; box-shadow: var(--shadow-lg);
  display: flex; align-items: center; gap: 14px;
  max-width: 320px; width: calc(100vw - 48px);
  transform: translateX(-120%);
  transition: transform 0.4s cubic-bezier(0.34,1.56,0.64,1);
  border-left: 4px solid var(--teal);
}
#purchase-notif.show { transform: translateX(0); }
.notif-avatar {
  width: 42px; height: 42px; border-radius: 50%;
  background: linear-gradient(135deg, var(--teal), var(--navy));
  display: flex; align-items: center; justify-content: center;
  color: var(--white); font-family: 'Montserrat', sans-serif;
  font-weight: 900; font-size: 16px; flex-shrink: 0;
}
.notif-text h4 { font-size: 13px; color: var(--navy); margin-bottom: 2px; }
.notif-text p { font-size: 12px; color: var(--gray); }
.notif-close {
  position: absolute; top: 8px; right: 10px;
  background: none; border: none; cursor: pointer;
  font-size: 16px; color: var(--gray); line-height: 1;
}

/* =============================================
   EXIT/SCROLL POPUP
   ============================================= */
#exit-popup {
  position: fixed; inset: 0; z-index: 9999;
  background: rgba(0,0,0,0.7);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transition: opacity 0.3s ease;
  padding: 20px;
}
#exit-popup.show { opacity: 1; pointer-events: all; }
.exit-popup-box {
  background: var(--white);
  border-radius: var(--radius);
  padding: 48px 40px;
  max-width: 500px; width: 100%;
  text-align: center;
  position: relative;
  box-shadow: var(--shadow-lg);
  transform: scale(0.9);
  transition: transform 0.35s cubic-bezier(0.34,1.56,0.64,1);
}
#exit-popup.show .exit-popup-box { transform: scale(1); }
.exit-popup-close {
  position: absolute; top: 14px; right: 16px;
  background: none; border: none; cursor: pointer;
  font-size: 24px; color: var(--gray);
  text-decoration: none;
}
.exit-popup-close:hover { color: var(--navy); }
.exit-popup-box h3 { color: var(--navy); margin-bottom: 10px; font-size: clamp(18px,3vw,24px); }
.exit-popup-box p { color: var(--gray); font-size: 15px; margin-bottom: 24px; }
.exit-popup-btn { width: 100%; min-height: 52px; }

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

/* =============================================
   SCROLL TO TOP
   ============================================= */
#scroll-top {
  position: fixed; bottom: 24px; right: 24px; z-index: 9990;
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--teal);
  color: var(--white); border: none; cursor: pointer;
  font-size: 22px; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 20px rgba(11,164,164,0.4);
  opacity: 0; pointer-events: none;
  transition: opacity var(--transition), transform var(--transition);
}
#scroll-top.show { opacity: 1; pointer-events: all; }
#scroll-top:hover { transform: translateY(-4px); }

/* =============================================
   MOBILE RESPONSIVE
   ============================================= */
@media (max-width: 991px) {
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .what-grid { grid-template-columns: 1fr; }
  .what-image-badge { right: 10px; bottom: 10px; }
  .science-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  #navbar .nav-links, #navbar .nav-cta { display: none; }
  .hamburger { display: flex; }
  .mobile-menu { display: flex; }
  .hero-grid { grid-template-columns: 1fr; gap: 36px; padding: 60px 0; text-align: center; }
  .hero-image-wrap { order: -1; }
  .hero-bottle { max-width: 240px; margin: 0 auto; }
  .hero-stats { justify-content: center; }
  .hero-cta-wrap { align-items: center; }
  .reviews-grid { grid-template-columns: 1fr; }
  .bonus-grid { grid-template-columns: 1fr; }
  .benefits-grid { grid-template-columns: 1fr 1fr; }
  .guarantee-grid { grid-template-columns: 1fr; padding: 36px; }
  .guarantee-img { text-align: center; }
  .guarantee-img img { max-width: 200px; margin: 0 auto; }
  .pricing-images-grid { grid-template-columns: 1fr; max-width: 380px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 575px) {
  .why-grid { grid-template-columns: 1fr; }
  .ingredients-grid { grid-template-columns: 1fr; }
  .benefits-grid { grid-template-columns: 1fr; }
  .hero-cta { width: 100%; }
  #purchase-notif { left: 12px; bottom: 80px; }
  .section-title { font-size: clamp(20px,6vw,28px); }
}