/* =========================================
   AUDIFORT - styles.css
   Design: Premium Medical Blue + Gold Accent
   Mobile-First Responsive
   ========================================= */

/* ===== CSS VARIABLES ===== */
:root {
  --primary: #1a3fa8;
  --primary-dark: #102a7a;
  --primary-light: #3b6ce8;
  --accent: #f59e0b;
  --accent-dark: #d97706;
  --teal: #06b6d4;
  --green: #10b981;
  --red: #ef4444;
  --white: #ffffff;
  --off-white: #f8faff;
  --light-bg: #eef3ff;
  --text-dark: #0f172a;
  --text-mid: #374151;
  --text-muted: #6b7280;
  --border: #dde5f5;
  --shadow-sm: 0 2px 8px rgba(26,63,168,0.10);
  --shadow-md: 0 6px 24px rgba(26,63,168,0.14);
  --shadow-lg: 0 16px 48px rgba(26,63,168,0.18);
  --radius: 16px;
  --radius-lg: 24px;
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Open Sans', sans-serif;
}

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

/* ===== UTILITY ===== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}
.gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--teal));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-eyebrow {
  display: inline-block;
  background: linear-gradient(135deg, var(--primary), var(--teal));
  color: white;
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 14px;
}
.section-title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(24px, 5vw, 38px);
  line-height: 1.25;
  margin-bottom: 12px;
  color: var(--text-dark);
}
.section-sub {
  font-size: 17px;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

/* ===== FADE-UP ANIMATION ===== */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .fade-up { opacity: 1; transform: none; transition: none; }
}

/* ===== BUTTONS ===== */
.btn-primary {
  display: inline-block;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: white;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 16px;
  padding: 14px 32px;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(26,63,168,0.3);
  min-height: 48px;
}
.btn-primary:hover { transform: scale(1.05); box-shadow: 0 8px 32px rgba(26,63,168,0.4); }
.btn-primary:active { transform: scale(0.98); }

.btn-hero {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: white;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 18px;
  padding: 18px 36px;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 6px 28px rgba(245,158,11,0.4);
  min-height: 56px;
  text-align: center;
  animation: heroBtnPulse 2.5s ease-in-out infinite;
}
@keyframes heroBtnPulse {
  0%, 100% { box-shadow: 0 6px 28px rgba(245,158,11,0.4); }
  50% { box-shadow: 0 8px 40px rgba(245,158,11,0.7); transform: scale(1.02); }
}
.btn-hero:hover { transform: scale(1.05) !important; animation: none; box-shadow: 0 10px 40px rgba(245,158,11,0.5); }
.btn-hero:active { transform: scale(0.98) !important; }

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.98);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.navbar.scrolled {
  box-shadow: var(--shadow-md);
  background: rgba(255,255,255,1);
}
.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 20px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 22px;
  color: var(--text-dark);
}
.logo-icon { font-size: 26px; }
.logo-accent { color: var(--primary); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-link {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 14px;
  color: var(--text-mid);
  transition: color 0.2s;
}
.nav-link:hover { color: var(--primary); }
.nav-cta {
  font-size: 14px;
  padding: 10px 22px;
  min-height: 44px;
}
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  gap: 5px;
  padding: 6px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-dark);
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

@media (max-width: 768px) {
  .hamburger { display: flex; }
  .nav-links {
    position: fixed;
    top: 0; right: -100%;
    width: min(320px, 85vw);
    height: 100vh;
    background: white;
    flex-direction: column;
    align-items: flex-start;
    padding: 80px 32px 32px;
    gap: 20px;
    box-shadow: -4px 0 32px rgba(0,0,0,0.15);
    transition: right 0.35s cubic-bezier(0.4,0,0.2,1);
    z-index: 999;
  }
  .nav-links.open { right: 0; }
  .nav-link { font-size: 16px; }
  .nav-cta { width: 100%; text-align: center; }
}

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  background: linear-gradient(160deg, #eef3ff 0%, #dbeafe 40%, #e0f7fa 100%);
  display: flex;
  align-items: center;
  padding: 100px 0 60px;
  position: relative;
  overflow: hidden;
}
.hero-bg-circles {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hero-bg-circles::before {
  content: '';
  position: absolute;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(26,63,168,0.07) 0%, transparent 70%);
  border-radius: 50%;
  top: -100px; right: -100px;
  animation: floatCircle 8s ease-in-out infinite;
}
.hero-bg-circles::after {
  content: '';
  position: absolute;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(6,182,212,0.08) 0%, transparent 70%);
  border-radius: 50%;
  bottom: -50px; left: -50px;
  animation: floatCircle 10s ease-in-out infinite reverse;
}
@keyframes floatCircle {
  0%, 100% { transform: translate(0,0) scale(1); }
  50% { transform: translate(20px, -20px) scale(1.05); }
}
.hero-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-image-wrap {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}
.hero-glow {
  position: absolute;
  width: 340px; height: 340px;
  background: radial-gradient(circle, rgba(26,63,168,0.15) 0%, transparent 70%);
  border-radius: 50%;
  animation: glowPulse 3s ease-in-out infinite;
}
@keyframes glowPulse {
  0%, 100% { transform: scale(1); opacity: 0.8; }
  50% { transform: scale(1.15); opacity: 1; }
}
.hero-bottle {
  width: 100%;
  max-width: 360px;
  filter: drop-shadow(0 20px 50px rgba(26,63,168,0.25));
  animation: bottleFloat 4s ease-in-out infinite;
  position: relative;
  z-index: 1;
}
@keyframes bottleFloat {
  0%, 100% { transform: translateY(0px) rotate(-2deg); }
  50% { transform: translateY(-18px) rotate(2deg); }
}
.hero-badge-float {
  position: absolute;
  top: 10%;
  right: 0;
  background: white;
  color: var(--primary);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 13px;
  padding: 8px 14px;
  border-radius: 50px;
  box-shadow: var(--shadow-md);
  animation: badgeFloat1 3s ease-in-out infinite;
  z-index: 2;
}
.hero-badge-float2 {
  position: absolute;
  bottom: 15%;
  left: 0;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: white;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 13px;
  padding: 8px 14px;
  border-radius: 50px;
  box-shadow: 0 4px 20px rgba(245,158,11,0.4);
  animation: badgeFloat2 3.5s ease-in-out infinite;
  z-index: 2;
}
@keyframes badgeFloat1 {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
@keyframes badgeFloat2 {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(8px); }
}
.hero-content { position: relative; z-index: 1; }
.hero-tag {
  display: inline-block;
  background: rgba(26,63,168,0.1);
  color: var(--primary);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 18px;
  border: 1px solid rgba(26,63,168,0.2);
}
.hero-title {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(28px, 5vw, 48px);
  line-height: 1.15;
  margin-bottom: 20px;
  color: var(--text-dark);
}
.hero-desc {
  font-size: 16px;
  color: var(--text-mid);
  margin-bottom: 16px;
  line-height: 1.75;
}
.hero-stars {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 14px;
  color: var(--text-mid);
  margin-bottom: 28px;
}
.hero-sub {
  margin-top: 14px;
  font-size: 13px;
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .hero { padding: 90px 0 50px; min-height: auto; }
  .hero-container { grid-template-columns: 1fr; gap: 32px; text-align: center; }
  .hero-image-wrap { order: -1; }
  .hero-bottle { max-width: 260px; margin: 0 auto; }
  .hero-glow { width: 240px; height: 240px; }
  .hero-badge-float { right: 10%; font-size: 11px; }
  .hero-badge-float2 { left: 10%; font-size: 11px; }
  .hero-stars { justify-content: center; }
  .btn-hero { width: 100%; display: block; }
}

/* ===== WHY CHOOSE ===== */
.why-choose {
  padding: 80px 0;
  background: var(--white);
  text-align: center;
}
.badges-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.badge-card {
  background: var(--off-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
  cursor: default;
}
.badge-card:hover {
  transform: scale(1.05) rotate(1deg);
  box-shadow: var(--shadow-lg);
  background: white;
  border-color: var(--primary);
}
.badge-icon-wrap {
  width: 80px; height: 80px;
  margin: 0 auto 18px;
  background: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
}
.badge-icon { width: 48px; height: 48px; object-fit: contain; border-radius: 0; }
.badge-card h3 {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 1px;
  color: var(--primary);
  margin-bottom: 10px;
}
.badge-card p { font-size: 14px; color: var(--text-muted); line-height: 1.65; }

@media (max-width: 991px) {
  .badges-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .badges-grid { grid-template-columns: 1fr; }
}

/* ===== WHAT IS ===== */
.what-is {
  padding: 80px 0;
  background: linear-gradient(160deg, #f8faff 0%, #eef3ff 100%);
}
.what-is-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.what-is-image {
  position: relative;
}
.what-is-image img {
  width: 100%;
  max-width: 440px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  margin: 0 auto;
}
.what-is-badge {
  position: absolute;
  top: -14px;
  right: -10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: white;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 13px;
  padding: 8px 20px;
  border-radius: 50px;
  box-shadow: 0 4px 20px rgba(245,158,11,0.4);
}
.what-is-content h2 {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(24px, 4vw, 36px);
  margin-bottom: 20px;
  color: var(--text-dark);
}
.what-is-content p {
  font-size: 16px;
  color: var(--text-mid);
  margin-bottom: 18px;
  line-height: 1.75;
}

@media (max-width: 768px) {
  .what-is-container { grid-template-columns: 1fr; gap: 32px; }
  .what-is-image { order: -1; }
}

/* ===== HOW IT WORKS ===== */
.how-it-works {
  padding: 80px 0;
  background: var(--white);
  text-align: center;
}
.accordion-list {
  max-width: 780px;
  margin: 0 auto;
  text-align: left;
}
.accordion-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  background: var(--off-white);
  transition: var(--transition);
}
.accordion-item.active { border-color: var(--primary); }
.accordion-header {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  background: none;
  border: none;
  padding: 18px 22px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 16px;
  color: var(--text-dark);
  cursor: pointer;
  min-height: 56px;
  text-align: left;
  transition: background 0.2s;
}
.accordion-header:hover { background: rgba(26,63,168,0.04); }
.acc-icon { font-size: 20px; flex-shrink: 0; }
.acc-arrow { margin-left: auto; font-size: 12px; color: var(--primary); transition: transform 0.3s; flex-shrink: 0; }
.accordion-item.active .acc-arrow { transform: rotate(180deg); }
.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4,0,0.2,1);
}
.accordion-item.active .accordion-body { max-height: 400px; }
.accordion-body p {
  padding: 0 22px 20px;
  font-size: 15px;
  color: var(--text-mid);
  line-height: 1.75;
}

/* ===== REVIEWS ===== */
.reviews {
  padding: 80px 0;
  background: linear-gradient(160deg, #f8faff 0%, #eef3ff 100%);
  text-align: center;
}
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.review-card {
  background: white;
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  text-align: left;
  transition: var(--transition);
}
.review-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.review-top {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}
.reviewer-img {
  width: 56px; height: 56px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--primary-light);
  flex-shrink: 0;
}
.reviewer-info strong {
  display: block;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 15px;
  color: var(--text-dark);
}
.reviewer-info span {
  font-size: 13px;
  color: var(--text-muted);
  display: block;
}
.stars { margin-top: 4px; font-size: 14px; }
.review-text { font-size: 15px; color: var(--text-mid); line-height: 1.7; margin-bottom: 14px; }
.verified-tag {
  font-size: 12px;
  color: var(--green);
  font-weight: 600;
  font-family: var(--font-heading);
}

@media (max-width: 768px) {
  .reviews-grid { grid-template-columns: 1fr; }
}
@media (min-width: 576px) and (max-width: 768px) {
  .reviews-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ===== PRICING ===== */
.pricing {
  padding: 80px 0;
  background: var(--off-white);
  text-align: center;
}
.pricing2 {
  background: linear-gradient(160deg, #e8f0fe 0%, #dbeafe 100%);
}
.countdown-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  margin-bottom: 40px;
}
.countdown-label {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 16px;
  color: var(--text-dark);
}
.countdown {
  display: flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  border-radius: var(--radius);
  padding: 16px 32px;
  box-shadow: var(--shadow-md);
}
.cd-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 60px;
}
.cd-block span {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 40px;
  color: white;
  line-height: 1;
}
.cd-block small {
  font-family: var(--font-heading);
  font-size: 10px;
  font-weight: 700;
  color: rgba(255,255,255,0.7);
  letter-spacing: 2px;
  margin-top: 4px;
}
.cd-sep {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 36px;
  color: white;
  padding-bottom: 8px;
}
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
  align-items: start;
}
.price-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  border: 2px solid var(--border);
  transition: var(--transition);
  position: relative;
}
.price-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.price-card.popular {
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
  transform: scale(1.03);
}
.price-card.popular:hover { transform: scale(1.05) translateY(-4px); }
.popular-badge {
  position: absolute;
  top: -16px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--primary), var(--teal));
  color: white;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 12px;
  letter-spacing: 1px;
  padding: 6px 20px;
  border-radius: 50px;
  white-space: nowrap;
}
.price-label {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--primary);
  text-transform: uppercase;
  margin-bottom: 6px;
}
.price-qty {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 22px;
  color: var(--text-dark);
  margin-bottom: 4px;
}
.price-supply {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.price-img {
  width: 100%;
  max-width: 160px;
  margin: 0 auto 20px;
  height: 180px;
  object-fit: contain;
}
.price-now {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 38px;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 4px;
}
.price-now span { font-size: 16px; font-weight: 600; }
.price-was {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.price-was s { color: var(--red); }
.price-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 20px;
}
.pbadge {
  background: #fef3c7;
  color: var(--accent-dark);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 11px;
  padding: 4px 12px;
  border-radius: 50px;
  border: 1px solid var(--accent);
}
.pbadge.green {
  background: #d1fae5;
  color: #065f46;
  border-color: var(--green);
}
.btn-price {
  display: block;
  width: 100%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: white;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 16px;
  padding: 14px 20px;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  min-height: 50px;
  text-align: center;
  margin-bottom: 14px;
}
.btn-price:hover { transform: scale(1.03); box-shadow: var(--shadow-md); }
.btn-price:active { transform: scale(0.98); }
.btn-price-popular {
  display: block;
  width: 100%;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: white;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 16px;
  padding: 14px 20px;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  min-height: 50px;
  text-align: center;
  margin-bottom: 14px;
  animation: heroBtnPulse 2.5s ease-in-out infinite;
}
.btn-price-popular:hover { transform: scale(1.03); animation: none; }
.payment-logos {
  max-width: 160px;
  height: 28px;
  margin: 0 auto;
  object-fit: contain;
  opacity: 0.7;
}
.star-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 40px;
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--text-mid);
}
.star-row img {
  max-width: 140px;
  height: 28px;
  object-fit: contain;
}

@media (max-width: 768px) {
  .pricing-grid { grid-template-columns: 1fr; max-width: 420px; margin: 40px auto 0; }
  .price-card.popular { transform: none; }
  .cd-block span { font-size: 32px; }
}
@media (min-width: 576px) and (max-width: 768px) {
  .pricing-grid { grid-template-columns: repeat(2, 1fr); max-width: 100%; }
}

/* ===== BONUS ===== */
.bonus {
  padding: 80px 0;
  background: linear-gradient(160deg, var(--primary-dark) 0%, var(--primary) 100%);
  text-align: center;
  color: white;
}
.bonus .section-title { color: white; }
.bonus .section-sub { color: rgba(255,255,255,0.8); }
.bonus .section-eyebrow { background: rgba(255,255,255,0.2); }
.bonus-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  max-width: 800px;
  margin: 0 auto;
}
.bonus-card {
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: var(--transition);
}
.bonus-card:hover { background: rgba(255,255,255,0.15); transform: translateY(-4px); box-shadow: 0 16px 48px rgba(0,0,0,0.2); }
.bonus-num {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 11px;
  letter-spacing: 3px;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 16px;
  border: 1px solid var(--accent);
  display: inline-block;
  padding: 4px 14px;
  border-radius: 50px;
}
.bonus-card img {
  max-width: 160px;
  height: 200px;
  object-fit: cover;
  margin: 0 auto 20px;
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}
.bonus-card h3 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 18px;
  color: white;
  margin-bottom: 12px;
}
.bonus-card p { font-size: 14px; color: rgba(255,255,255,0.8); line-height: 1.7; margin-bottom: 14px; }
.bonus-price { font-family: var(--font-heading); font-weight: 700; font-size: 18px; color: var(--accent); }
.bonus-price s { color: rgba(255,255,255,0.5); font-weight: 400; }

@media (max-width: 600px) {
  .bonus-grid { grid-template-columns: 1fr; }
}

/* ===== INGREDIENTS ===== */
.ingredients {
  padding: 80px 0;
  background: var(--white);
  text-align: center;
}
.ingredients-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 40px;
}
.ingredient-card {
  background: var(--off-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: left;
  transition: var(--transition);
}
.ingredient-card:hover { box-shadow: var(--shadow-md); border-color: var(--primary); background: white; }
.ing-icon { font-size: 28px; margin-bottom: 12px; display: block; }
.ingredient-card h3 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 16px;
  color: var(--primary);
  margin-bottom: 8px;
}
.ingredient-card p { font-size: 14px; color: var(--text-muted); line-height: 1.65; }

@media (max-width: 768px) {
  .ingredients-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .ingredients-grid { grid-template-columns: 1fr; }
}

/* ===== SCIENCE ===== */
.science {
  padding: 80px 0;
  background: linear-gradient(160deg, #f8faff 0%, #eef3ff 100%);
  text-align: center;
}
.science-list {
  max-width: 860px;
  margin: 0 auto;
  text-align: left;
}
.science-item {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 20px;
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
}
.science-item:last-child { border-bottom: none; }
.sci-num {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 36px;
  color: rgba(26,63,168,0.12);
  line-height: 1;
  padding-top: 6px;
}
.sci-content h3 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 17px;
  color: var(--primary);
  margin-bottom: 10px;
}
.sci-content p { font-size: 15px; color: var(--text-mid); line-height: 1.75; }

@media (max-width: 480px) {
  .science-item { grid-template-columns: 1fr; gap: 10px; }
  .sci-num { font-size: 22px; }
}

/* ===== GUARANTEE ===== */
.guarantee {
  padding: 80px 0;
  background: linear-gradient(160deg, #fffbeb 0%, #fef3c7 100%);
}
.guarantee-container {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 60px;
  align-items: center;
}
.guarantee-image img {
  width: 100%;
  max-width: 280px;
  margin: 0 auto;
  filter: drop-shadow(0 10px 30px rgba(245,158,11,0.25));
  animation: bottleFloat 4s ease-in-out infinite;
}
.guarantee-content h2 {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(22px, 4vw, 34px);
  color: var(--text-dark);
  margin-bottom: 28px;
}
.g-point {
  display: flex;
  gap: 18px;
  margin-bottom: 22px;
  align-items: flex-start;
}
.g-icon {
  font-size: 28px;
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
}
.g-point h3 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 16px;
  color: var(--text-dark);
  margin-bottom: 6px;
}
.g-point p { font-size: 15px; color: var(--text-mid); line-height: 1.7; }

@media (max-width: 768px) {
  .guarantee-container { grid-template-columns: 1fr; gap: 32px; text-align: center; }
  .g-point { text-align: left; }
  .guarantee-image img { max-width: 200px; }
}

/* ===== BENEFITS ===== */
.benefits {
  padding: 80px 0;
  background: var(--white);
  text-align: center;
}
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 40px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}
.benefit-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: var(--off-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 20px;
  text-align: left;
  transition: var(--transition);
}
.benefit-item:hover { box-shadow: var(--shadow-md); border-color: var(--primary); background: white; }
.b-check {
  font-size: 20px;
  flex-shrink: 0;
  margin-top: 2px;
}
.benefit-item h3 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 15px;
  color: var(--text-dark);
  margin-bottom: 6px;
}
.benefit-item p { font-size: 14px; color: var(--text-muted); line-height: 1.65; }

@media (max-width: 640px) {
  .benefits-grid { grid-template-columns: 1fr; }
}

/* ===== FINAL CTA ===== */
.final-cta {
  padding: 80px 0;
  background: linear-gradient(160deg, #0f172a 0%, #1a3fa8 60%, #0369a1 100%);
  position: relative;
  overflow: hidden;
  text-align: center;
}
.final-cta-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(6,182,212,0.15) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 50%, rgba(245,158,11,0.1) 0%, transparent 60%);
  pointer-events: none;
}
.final-cta-container {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.final-bottle-wrap {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}
.final-glow-ring {
  position: absolute;
  width: 320px; height: 320px;
  border: 2px solid rgba(6,182,212,0.3);
  border-radius: 50%;
  animation: ringPulse 2.5s ease-in-out infinite;
}
.final-glow-ring::after {
  content: '';
  position: absolute;
  inset: 20px;
  border: 2px solid rgba(245,158,11,0.2);
  border-radius: 50%;
  animation: ringPulse 2.5s ease-in-out infinite 0.5s;
}
@keyframes ringPulse {
  0%, 100% { transform: scale(1); opacity: 0.8; }
  50% { transform: scale(1.08); opacity: 0.4; }
}
.final-bottle {
  max-width: 300px;
  width: 100%;
  filter: drop-shadow(0 20px 50px rgba(6,182,212,0.4));
  animation: bottleFloat 4s ease-in-out infinite;
  position: relative;
  z-index: 1;
}
.final-cta-content { text-align: left; }
.final-urgency-tag {
  display: inline-block;
  background: rgba(245,158,11,0.2);
  border: 1px solid rgba(245,158,11,0.4);
  color: var(--accent);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 18px;
}
.final-cta-content h2 {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(24px, 4vw, 38px);
  color: white;
  margin-bottom: 20px;
  line-height: 1.2;
}
.final-pricing {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 20px;
}
.final-was {
  font-size: 15px;
  color: rgba(255,255,255,0.6);
}
.final-was s { color: #ef4444; }
.final-now {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 28px;
  color: var(--accent);
}
.final-cta-content p { font-size: 16px; color: rgba(255,255,255,0.8); margin-bottom: 28px; line-height: 1.7; }
.btn-final {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--accent), #e67e00);
  color: white;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 18px;
  padding: 18px 36px;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 6px 28px rgba(245,158,11,0.5);
  min-height: 56px;
  animation: heroBtnPulse 2.5s ease-in-out infinite;
}
.btn-final:hover { transform: scale(1.05); animation: none; box-shadow: 0 10px 40px rgba(245,158,11,0.6); }
.btn-final:active { transform: scale(0.98); }
.btn-icon { font-size: 20px; }
.final-trust {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 18px;
  font-size: 13px;
  color: rgba(255,255,255,0.7);
  font-family: var(--font-heading);
  font-weight: 600;
}

@media (max-width: 768px) {
  .final-cta-container { grid-template-columns: 1fr; gap: 32px; text-align: center; }
  .final-cta-content { text-align: center; }
  .final-trust { justify-content: center; }
  .btn-final { width: 100%; justify-content: center; }
  .final-bottle { max-width: 220px; margin: 0 auto; }
  .final-glow-ring { width: 240px; height: 240px; }
}

/* ===== FAQ ===== */
.faq {
  padding: 80px 0;
  background: var(--off-white);
  text-align: center;
}
.faq-list {
  max-width: 780px;
  margin: 0 auto;
  text-align: left;
}
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  background: white;
  overflow: hidden;
}
.faq-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  background: none;
  border: none;
  padding: 18px 22px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 16px;
  color: var(--text-dark);
  cursor: pointer;
  min-height: 56px;
  text-align: left;
  gap: 12px;
  transition: background 0.2s;
}
.faq-header:hover { background: var(--light-bg); }
.faq-arrow { font-size: 12px; color: var(--primary); transition: transform 0.3s; flex-shrink: 0; }
.faq-item.active .faq-arrow { transform: rotate(180deg); }
.faq-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4,0,0.2,1);
}
.faq-item.active .faq-body { max-height: 400px; }
.faq-body p {
  padding: 0 22px 20px;
  font-size: 15px;
  color: var(--text-mid);
  line-height: 1.75;
}

/* ===== FOOTER ===== */
.footer {
  background: var(--text-dark);
  color: rgba(255,255,255,0.8);
}
.footer-container {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  padding: 60px 20px 40px;
}
.footer-brand .nav-logo { color: white; margin-bottom: 16px; }
.footer-brand p { font-size: 14px; line-height: 1.7; margin-bottom: 20px; }
.social-icons { display: flex; gap: 12px; }
.social-icon {
  width: 40px; height: 40px;
  background: rgba(255,255,255,0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.8);
  transition: var(--transition);
}
.social-icon:hover { background: var(--primary); color: white; transform: translateY(-2px); }
.footer-links h4, .footer-legal-col h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: white;
  margin-bottom: 16px;
}
.footer-links a {
  display: block;
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  margin-bottom: 10px;
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--teal); }
.footer-legal-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.legal-link {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  transition: color 0.2s;
}
.legal-link:hover { color: var(--teal); }
.link-separator { display: none; }
.footer-disclaimer {
  background: rgba(0,0,0,0.3);
  padding: 24px 0;
  text-align: center;
}
.footer-disclaimer p {
  font-size: 12px;
  color: rgba(255,255,255,0.5);
  line-height: 1.65;
  max-width: 860px;
  margin: 0 auto 8px;
}
.copyright { font-size: 13px !important; color: rgba(255,255,255,0.6) !important; }

@media (max-width: 768px) {
  .footer-container { grid-template-columns: 1fr; gap: 28px; text-align: center; }
  .social-icons { justify-content: center; }
  .footer-links a { display: inline; margin: 0 8px; }
}

/* ===== SCROLL TO TOP ===== */
.scroll-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--primary), var(--teal));
  color: white;
  border: none;
  border-radius: 50%;
  font-size: 22px;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  z-index: 999;
  display: none;
  align-items: center;
  justify-content: center;
}
.scroll-top.visible { display: flex; }
.scroll-top:hover { transform: translateY(-3px) scale(1.1); box-shadow: var(--shadow-lg); }
.scroll-top:active { transform: scale(0.95); }

/* ===== PURCHASE POPUP ===== */
.purchase-popup {
  position: fixed;
  bottom: 20px;
  left: 20px;
  background: white;
  border-radius: var(--radius);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  z-index: 1001;
  max-width: 320px;
  transform: translateX(-120%);
  transition: transform 0.4s cubic-bezier(0.4,0,0.2,1);
}
.purchase-popup.show { transform: translateX(0); }
.popup-avatar { font-size: 28px; flex-shrink: 0; }
.popup-text { font-size: 13px; color: var(--text-mid); line-height: 1.5; flex: 1; }
.popup-text strong { color: var(--text-dark); }
.popup-close {
  background: none;
  border: none;
  font-size: 16px;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  flex-shrink: 0;
  min-width: 28px;
  min-height: 28px;
  border-radius: 50%;
  transition: background 0.2s;
}
.popup-close:hover { background: var(--light-bg); }

/* ===== EXIT POPUP ===== */
.exit-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}
.exit-overlay.show { opacity: 1; pointer-events: all; }
.exit-popup {
  background: white;
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  max-width: 480px;
  width: 100%;
  text-align: center;
  position: relative;
  box-shadow: 0 32px 80px rgba(0,0,0,0.3);
  transform: scale(0.9);
  transition: transform 0.3s;
}
.exit-overlay.show .exit-popup { transform: scale(1); }
.exit-close {
  position: absolute;
  top: 14px; right: 14px;
  width: 36px; height: 36px;
  background: var(--light-bg);
  border: none;
  border-radius: 50%;
  font-size: 16px;
  cursor: pointer;
  color: var(--text-muted);
  transition: background 0.2s;
}
.exit-close:hover { background: var(--border); }
.exit-icon { font-size: 48px; margin-bottom: 14px; }
.exit-popup h3 {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 22px;
  color: var(--text-dark);
  margin-bottom: 14px;
}
.exit-popup p { font-size: 16px; color: var(--text-mid); margin-bottom: 24px; line-height: 1.7; }
.exit-popup .btn-final { width: 100%; justify-content: center; }
.exit-skip { margin-top: 14px; font-size: 13px; }
.exit-skip a { color: var(--text-muted); text-decoration: underline; }

/* ===== NAV OVERLAY (mobile) ===== */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 998;
}
.nav-overlay.show { display: block; }