/* ============================================
   BALANSVIA™ - styles.css
   Design: Medical Professional + Premium Blue
   Mobile-First Responsive
   ============================================ */

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

:root {
  --primary: #1E40AF;
  --primary-light: #3B82F6;
  --primary-pale: #EFF6FF;
  --accent: #06B6D4;
  --accent2: #10B981;
  --gold: #F59E0B;
  --danger: #EF4444;
  --dark: #0F172A;
  --dark2: #1E293B;
  --gray: #64748B;
  --gray-light: #F1F5F9;
  --white: #FFFFFF;
  --border: #E2E8F0;
  --shadow-sm: 0 2px 8px rgba(30,64,175,0.08);
  --shadow-md: 0 8px 30px rgba(30,64,175,0.15);
  --shadow-lg: 0 20px 60px rgba(30,64,175,0.2);
  --radius: 16px;
  --radius-sm: 8px;
  --radius-full: 50px;
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Open Sans', 'Roboto', 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(--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; }
ul { list-style: none; }
input, select, textarea { font-size: 16px; }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; } }

/* === CONTAINER === */
.container { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 20px; }

/* === SECTION PADDING === */
.section-pad { padding: 60px 0; }
@media (min-width: 768px) { .section-pad { padding: 90px 0; } }
@media (min-width: 1024px) { .section-pad { padding: 110px 0; } }

/* === SECTION HEADER === */
.section-header { text-align: center; margin-bottom: 50px; }
.section-tag { display: inline-block; background: var(--primary-pale); color: var(--primary); font-family: var(--font-heading); font-weight: 700; font-size: 13px; letter-spacing: 0.08em; text-transform: uppercase; padding: 6px 18px; border-radius: var(--radius-full); margin-bottom: 14px; }
.section-header h2 { font-family: var(--font-heading); font-weight: 800; font-size: 28px; color: var(--dark); line-height: 1.3; margin-bottom: 14px; }
.section-sub { font-size: 17px; color: var(--gray); max-width: 620px; margin: 0 auto; }
.highlight { color: var(--primary-light); }
@media (min-width: 768px) { .section-header h2 { font-size: 36px; } }
@media (min-width: 1024px) { .section-header h2 { font-size: 42px; } }

/* === BUTTONS === */
.btn-primary, .btn-hero, .btn-final, .btn-exit-cta, .btn-mobile-cta { display: inline-block; background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%); color: var(--white); font-family: var(--font-heading); font-weight: 700; font-size: 16px; padding: 16px 36px; border-radius: var(--radius-full); border: none; cursor: pointer; transition: var(--transition); text-align: center; min-height: 52px; line-height: 1.2; box-shadow: 0 4px 20px rgba(30,64,175,0.35); }
.btn-primary:hover, .btn-hero:hover, .btn-final:hover { transform: scale(1.05); box-shadow: 0 8px 35px rgba(30,64,175,0.45); }
.btn-primary:active, .btn-hero:active { transform: scale(0.98); }
.btn-hero { font-size: 18px; padding: 18px 40px; background: linear-gradient(135deg, #F59E0B 0%, #EF4444 100%); box-shadow: 0 6px 25px rgba(239,68,68,0.4); width: 100%; max-width: 420px; }
.btn-hero:hover { box-shadow: 0 10px 40px rgba(239,68,68,0.5); transform: scale(1.05); }
.btn-final { font-size: 19px; padding: 20px 44px; background: linear-gradient(135deg, #F59E0B 0%, #EF4444 100%); width: 100%; max-width: 480px; animation: pulse-btn 2s infinite; }
@keyframes pulse-btn { 0%,100%{box-shadow:0 6px 25px rgba(239,68,68,0.4)} 50%{box-shadow:0 10px 40px rgba(239,68,68,0.7)} }
.btn-price { display: block; width: 100%; margin: 16px 0 8px; border: none; background: transparent; cursor: pointer; }
.btn-price img { margin: 0 auto; border-radius: 8px; transition: var(--transition); }
.btn-price:hover img { transform: scale(1.04); }

/* ============================================
   NAVBAR
   ============================================ */
.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: 1px solid var(--border); transition: var(--transition); }
.navbar.scrolled { box-shadow: var(--shadow-md); }
.nav-container { display: flex; align-items: center; justify-content: space-between; height: 68px; padding: 0 20px; max-width: 1240px; margin: 0 auto; }
.nav-logo { display: flex; align-items: center; gap: 10px; font-family: var(--font-heading); font-weight: 800; font-size: 20px; color: var(--primary); }
.nav-logo img { width: 38px; height: 38px; object-fit: contain; border-radius: 8px; }
.nav-links { display: none; gap: 32px; }
.nav-link { font-family: var(--font-heading); font-weight: 600; font-size: 15px; color: var(--dark); transition: var(--transition); }
.nav-link:hover { color: var(--primary-light); }
.btn-nav-cta { display: none; background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: var(--white); font-family: var(--font-heading); font-weight: 700; font-size: 14px; padding: 10px 22px; border-radius: var(--radius-full); transition: var(--transition); white-space: nowrap; min-height: 44px; display: flex; align-items: center; }
.btn-nav-cta:hover { transform: scale(1.05); box-shadow: var(--shadow-md); }
.hamburger { display: flex; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; min-width: 44px; min-height: 44px; justify-content: center; align-items: center; }
.hamburger span { display: block; width: 24px; height: 2.5px; background: var(--dark); border-radius: 2px; transition: var(--transition); }
.hamburger.active span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* MOBILE MENU */
.mobile-menu { display: flex; flex-direction: column; align-items: center; gap: 8px; background: var(--white); border-top: 1px solid var(--border); padding: 20px; max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s ease; }
.mobile-menu.open { max-height: 400px; }
.mobile-link { font-family: var(--font-heading); font-weight: 600; font-size: 17px; color: var(--dark); padding: 12px 24px; width: 100%; text-align: center; border-radius: var(--radius-sm); transition: var(--transition); min-height: 48px; display: flex; align-items: center; justify-content: center; }
.mobile-link:hover { background: var(--primary-pale); color: var(--primary); }
.btn-mobile-cta { width: 100%; margin-top: 8px; justify-content: center; }

@media (min-width: 768px) {
  .nav-links { display: flex; }
  .btn-nav-cta { display: flex; }
  .hamburger { display: none; }
  .mobile-menu { display: none !important; }
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero { padding-top: 90px; min-height: 100vh; background: linear-gradient(160deg, #EFF6FF 0%, #DBEAFE 40%, #E0F2FE 100%); position: relative; overflow: hidden; display: flex; align-items: center; }
.hero-bg-particles { position: absolute; inset: 0; pointer-events: none; }
.hero-bg-particles::before { content: ''; position: absolute; width: 500px; height: 500px; border-radius: 50%; background: radial-gradient(circle, rgba(59,130,246,0.12) 0%, transparent 70%); top: -100px; right: -100px; animation: float-orb 8s ease-in-out infinite; }
.hero-bg-particles::after { content: ''; position: absolute; width: 300px; height: 300px; border-radius: 50%; background: radial-gradient(circle, rgba(6,182,212,0.1) 0%, transparent 70%); bottom: -50px; left: -50px; animation: float-orb 10s ease-in-out infinite reverse; }
@keyframes float-orb { 0%,100%{transform:translate(0,0)} 50%{transform:translate(30px,-30px)} }

.hero-container { display: flex; flex-direction: column; align-items: center; gap: 40px; padding: 60px 20px; position: relative; z-index: 1; }
.hero-image-wrap { position: relative; display: flex; justify-content: center; order: -1; }
.hero-glow { position: absolute; width: 300px; height: 300px; border-radius: 50%; background: radial-gradient(circle, rgba(59,130,246,0.2) 0%, transparent 70%); top: 50%; left: 50%; transform: translate(-50%,-50%); animation: glow-pulse 3s ease-in-out infinite; }
@keyframes glow-pulse { 0%,100%{opacity:0.6;transform:translate(-50%,-50%) scale(1)} 50%{opacity:1;transform:translate(-50%,-50%) scale(1.1)} }
.hero-bottle { width: 260px; max-width: 100%; position: relative; z-index: 1; animation: bottle-float 4s ease-in-out infinite; filter: drop-shadow(0 20px 40px rgba(30,64,175,0.25)); }
@keyframes bottle-float { 0%,100%{transform:translateY(0) rotate(-2deg)} 50%{transform:translateY(-18px) rotate(2deg)} }
.hero-badge-float { position: absolute; bottom: 10px; right: -10px; background: var(--accent2); color: var(--white); font-family: var(--font-heading); font-weight: 700; font-size: 12px; padding: 8px 14px; border-radius: var(--radius-full); animation: badge-bounce 2s ease-in-out infinite; box-shadow: var(--shadow-md); white-space: nowrap; }
@keyframes badge-bounce { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-6px)} }

.hero-content { text-align: center; max-width: 600px; }
.hero-tag { display: inline-block; background: rgba(59,130,246,0.12); color: var(--primary); font-family: var(--font-heading); font-weight: 700; font-size: 13px; padding: 6px 16px; border-radius: var(--radius-full); margin-bottom: 18px; border: 1px solid rgba(59,130,246,0.2); }
.hero-h1 { font-family: var(--font-heading); font-weight: 900; font-size: 28px; color: var(--dark); line-height: 1.25; margin-bottom: 20px; }
.hero-desc { font-size: 16px; color: #334155; line-height: 1.8; margin-bottom: 14px; }
.hero-badges { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin: 20px 0; }
.hero-badges span { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-full); font-family: var(--font-heading); font-weight: 600; font-size: 13px; color: var(--dark2); padding: 6px 14px; }
.btn-hero { margin: 8px auto; }
.hero-trust { display: flex; align-items: center; gap: 10px; justify-content: center; margin-top: 16px; font-size: 14px; color: var(--gray); }
.hero-trust img { display: inline; }

@media (min-width: 768px) {
  .hero-container { flex-direction: row; justify-content: center; gap: 60px; padding: 80px 40px; }
  .hero-image-wrap { order: 0; flex: 0 0 auto; }
  .hero-bottle { width: 320px; }
  .hero-content { text-align: left; }
  .hero-h1 { font-size: 38px; }
  .hero-badges { justify-content: flex-start; }
  .hero-trust { justify-content: flex-start; }
  .btn-hero { margin: 8px 0; }
}
@media (min-width: 1024px) {
  .hero-h1 { font-size: 48px; }
  .hero-bottle { width: 380px; }
  .hero-glow { width: 400px; height: 400px; }
}

/* ============================================
   WHY CHOOSE US
   ============================================ */
.why-us { background: var(--white); }
.why-grid { display: grid; grid-template-columns: 1fr; gap: 24px; }
.why-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px 24px; text-align: center; transition: var(--transition); box-shadow: var(--shadow-sm); }
.why-card:hover { transform: scale(1.05) rotate(1deg); box-shadow: var(--shadow-lg); border-color: var(--primary-light); }
.why-icon-wrap { width: 90px; height: 90px; border-radius: 50%; background: var(--primary-pale); display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; }
.why-icon-wrap img { width: 60px; height: 60px; object-fit: contain; }
.why-card h3 { font-family: var(--font-heading); font-weight: 800; font-size: 18px; color: var(--dark); margin-bottom: 12px; }
.why-card p { font-size: 15px; color: var(--gray); line-height: 1.7; }
@media (min-width: 576px) { .why-grid { grid-template-columns: repeat(2,1fr); } }
@media (min-width: 992px) { .why-grid { grid-template-columns: repeat(4,1fr); } }

/* ============================================
   WHAT IS BALANSVIA
   ============================================ */
.what-is { background: linear-gradient(160deg, var(--primary-pale) 0%, var(--white) 100%); }
.what-grid { display: flex; flex-direction: column; gap: 50px; }
.what-img-wrap { position: relative; display: flex; justify-content: center; }
.what-img { border-radius: var(--radius); box-shadow: var(--shadow-lg); width: 100%; max-width: 460px; }
.what-badge { position: absolute; top: 20px; left: 20px; background: var(--accent2); color: var(--white); font-family: var(--font-heading); font-weight: 700; font-size: 13px; padding: 8px 16px; border-radius: var(--radius-full); }
.what-content { display: flex; flex-direction: column; gap: 16px; }
.what-content h2 { font-family: var(--font-heading); font-weight: 800; font-size: 28px; color: var(--dark); }
.what-content p { font-size: 16px; color: #334155; line-height: 1.8; }
.what-points { display: flex; flex-direction: column; gap: 10px; margin: 8px 0; }
.what-point { font-family: var(--font-heading); font-weight: 600; font-size: 15px; color: var(--dark2); padding: 10px 16px; background: var(--white); border-radius: var(--radius-sm); border-left: 4px solid var(--accent2); box-shadow: var(--shadow-sm); }
@media (min-width: 768px) {
  .what-grid { flex-direction: row; align-items: center; gap: 70px; }
  .what-img-wrap { flex: 0 0 440px; }
  .what-content h2 { font-size: 36px; }
}

/* ============================================
   HOW IT WORKS
   ============================================ */
.how-works { background: var(--dark2); }
.how-works .section-header h2 { color: var(--white); }
.how-works .section-sub { color: #94A3B8; }
.how-works .section-tag { background: rgba(59,130,246,0.15); color: #93C5FD; }
.accordion-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.accordion-item { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); border-radius: var(--radius); overflow: hidden; transition: var(--transition); }
.accordion-item.open { border-color: var(--primary-light); }
.accordion-header { display: flex; align-items: center; gap: 14px; width: 100%; background: none; border: none; cursor: pointer; padding: 20px 24px; color: var(--white); font-family: var(--font-heading); font-weight: 700; font-size: 16px; text-align: left; min-height: 60px; transition: var(--transition); }
.accordion-header:hover { background: rgba(255,255,255,0.05); }
.acc-icon { font-size: 22px; flex-shrink: 0; }
.acc-arrow { margin-left: auto; transition: transform 0.3s ease; font-size: 12px; color: var(--primary-light); flex-shrink: 0; }
.accordion-item.open .acc-arrow { transform: rotate(180deg); }
.accordion-body { max-height: 0; overflow: hidden; transition: max-height 0.45s ease, padding 0.3s ease; padding: 0 24px; }
.accordion-item.open .accordion-body { max-height: 300px; padding: 0 24px 24px; }
.accordion-body p { font-size: 15px; color: #CBD5E1; line-height: 1.8; }

/* ============================================
   REVIEWS
   ============================================ */
.reviews { background: var(--gray-light); }
.reviews-grid { display: grid; grid-template-columns: 1fr; gap: 24px; }
.review-card { background: var(--white); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow-sm); border: 1px solid var(--border); transition: var(--transition); }
.review-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.review-top { display: flex; align-items: center; gap: 16px; margin-bottom: 16px; }
.review-avatar { width: 65px; height: 65px; border-radius: 50%; object-fit: cover; border: 3px solid var(--primary-pale); }
.review-meta strong { display: block; font-family: var(--font-heading); font-weight: 700; font-size: 16px; color: var(--dark); }
.review-meta span { font-size: 13px; color: var(--gray); }
.stars { font-size: 15px; margin-top: 2px; }
.review-text { font-size: 15px; color: #334155; line-height: 1.8; margin-bottom: 12px; }
.review-verified { font-size: 12px; color: var(--accent2); font-family: var(--font-heading); font-weight: 600; }
@media (min-width: 576px) { .reviews-grid { grid-template-columns: repeat(2,1fr); } }
@media (min-width: 992px) { .reviews-grid { grid-template-columns: repeat(3,1fr); } }

/* ============================================
   PRICING
   ============================================ */
.pricing { background: linear-gradient(160deg, #0F172A 0%, #1E293B 100%); }
.pricing .section-header h2 { color: var(--white); }
.pricing .section-sub { color: #94A3B8; }
.pricing .section-tag { background: rgba(245,158,11,0.15); color: #FCD34D; }
.pricing2 { background: linear-gradient(160deg, #1E293B 0%, #0F172A 100%); }
.pricing2 .section-header h2 { color: var(--white); }
.pricing2 .section-sub { color: #94A3B8; }
.pricing2 .section-tag { background: rgba(239,68,68,0.15); color: #FCA5A5; }

.countdown-wrap { text-align: center; margin-bottom: 40px; }
.countdown-label { font-family: var(--font-heading); font-weight: 700; font-size: 16px; color: #FCD34D; margin-bottom: 14px; letter-spacing: 0.05em; text-transform: uppercase; }
.countdown-timer { display: inline-flex; align-items: center; gap: 12px; }
.time-box { background: var(--white); border-radius: 12px; padding: 14px 20px; text-align: center; min-width: 80px; box-shadow: 0 4px 20px rgba(0,0,0,0.3); }
.time-box span { display: block; font-family: var(--font-heading); font-weight: 900; font-size: 42px; color: var(--danger); line-height: 1; }
.time-box label { font-family: var(--font-heading); font-weight: 700; font-size: 11px; color: var(--gray); text-transform: uppercase; letter-spacing: 0.1em; display: block; margin-top: 4px; }
.colon { font-family: var(--font-heading); font-weight: 900; font-size: 40px; color: var(--white); }
@media (min-width: 480px) { .time-box span { font-size: 54px; } .time-box { min-width: 100px; } }

.pricing-grid { display: grid; grid-template-columns: 1fr; gap: 24px; margin-bottom: 40px; }
.price-card { background: var(--white); border-radius: var(--radius); padding: 28px 20px; text-align: center; position: relative; border: 2px solid var(--border); transition: var(--transition); box-shadow: var(--shadow-sm); }
.price-card:hover { transform: translateY(-8px); box-shadow: 0 30px 70px rgba(0,0,0,0.25); }
.price-card.popular { border-color: var(--gold); transform: scale(1.03); box-shadow: 0 20px 60px rgba(245,158,11,0.35); background: linear-gradient(160deg, #FFFBEB 0%, #FEF3C7 100%); }
.price-card.popular:hover { transform: scale(1.03) translateY(-8px); }
.popular-badge { position: absolute; top: -16px; left: 50%; transform: translateX(-50%); background: linear-gradient(135deg, var(--gold), #F97316); color: var(--white); font-family: var(--font-heading); font-weight: 800; font-size: 13px; padding: 6px 22px; border-radius: var(--radius-full); white-space: nowrap; box-shadow: 0 4px 15px rgba(245,158,11,0.4); }
.badge-green-top { position: absolute; top: -14px; left: 50%; transform: translateX(-50%); background: var(--accent2); color: var(--white); font-family: var(--font-heading); font-weight: 700; font-size: 12px; padding: 5px 18px; border-radius: var(--radius-full); white-space: nowrap; }
.price-label { font-family: var(--font-heading); font-weight: 800; font-size: 15px; color: var(--primary); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 4px; }
.price-qty { font-family: var(--font-heading); font-weight: 900; font-size: 22px; color: var(--dark); }
.price-supply { font-size: 14px; color: var(--gray); margin-bottom: 16px; }
.price-bottle-img { margin: 0 auto 16px; max-height: 200px; object-fit: contain; }
.price-badges-row { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-bottom: 12px; }
.badge-green { background: var(--accent2); color: var(--white); font-family: var(--font-heading); font-weight: 700; font-size: 12px; padding: 5px 12px; border-radius: var(--radius-full); }
.badge-blue { background: var(--primary-light); color: var(--white); font-family: var(--font-heading); font-weight: 700; font-size: 12px; padding: 5px 12px; border-radius: var(--radius-full); }
.price-amount { display: flex; align-items: baseline; gap: 10px; justify-content: center; margin-bottom: 4px; }
.price-old { font-family: var(--font-heading); font-weight: 600; font-size: 18px; color: #94A3B8; text-decoration: line-through; }
.price-now { font-family: var(--font-heading); font-weight: 900; font-size: 42px; color: var(--primary); }
.price-per { font-size: 15px; color: var(--gray); }
.price-per-bottle { font-family: var(--font-heading); font-weight: 700; font-size: 15px; color: var(--accent2); margin-bottom: 4px; }
.payment-logos { margin: 6px auto 0; opacity: 0.7; max-width: 180px; }
.popular-btn img { filter: brightness(1.1); }
.rating-center { text-align: center; margin-top: 10px; }
.rating-center img { margin: 0 auto 10px; }
.rating-center p { color: #CBD5E1; font-size: 15px; }
@media (min-width: 576px) { .pricing-grid { grid-template-columns: repeat(2,1fr); } }
@media (min-width: 992px) { .pricing-grid { grid-template-columns: repeat(3,1fr); } }

/* ============================================
   BONUS
   ============================================ */
.bonus { background: linear-gradient(160deg, #EFF6FF 0%, #DBEAFE 100%); }
.bonus-grid { display: grid; grid-template-columns: 1fr; gap: 28px; margin-bottom: 40px; }
.bonus-card { background: var(--white); border-radius: var(--radius); padding: 32px 24px; text-align: center; box-shadow: var(--shadow-md); border: 1px solid var(--border); transition: var(--transition); }
.bonus-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.bonus-num { font-family: var(--font-heading); font-weight: 800; font-size: 12px; letter-spacing: 0.15em; color: var(--primary); background: var(--primary-pale); display: inline-block; padding: 4px 14px; border-radius: var(--radius-full); margin-bottom: 16px; }
.bonus-img { width: 220px; max-width: 100%; margin: 0 auto 20px; border-radius: var(--radius-sm); }
.bonus-card h3 { font-family: var(--font-heading); font-weight: 800; font-size: 18px; color: var(--dark); margin-bottom: 12px; }
.bonus-card p { font-size: 15px; color: var(--gray); line-height: 1.7; }
.bonus-value { font-family: var(--font-heading); font-weight: 800; font-size: 16px; color: var(--accent2); margin-top: 14px; }
.bonus-cta-wrap { text-align: center; }
@media (min-width: 640px) { .bonus-grid { grid-template-columns: repeat(2,1fr); } }

/* ============================================
   INGREDIENTS
   ============================================ */
.ingredients { background: var(--white); }
.ing-grid { display: grid; grid-template-columns: 1fr; gap: 20px; }
.ing-card { background: var(--gray-light); border-radius: var(--radius); padding: 24px; border-left: 4px solid var(--primary-light); transition: var(--transition); }
.ing-card:hover { transform: translateX(6px); box-shadow: var(--shadow-md); background: var(--primary-pale); }
.ing-icon { font-size: 30px; margin-bottom: 10px; }
.ing-card h3 { font-family: var(--font-heading); font-weight: 800; font-size: 17px; color: var(--dark); margin-bottom: 8px; }
.ing-card p { font-size: 15px; color: var(--gray); line-height: 1.7; margin-bottom: 10px; }
.ing-benefit { font-family: var(--font-heading); font-weight: 600; font-size: 13px; color: var(--accent2); }
@media (min-width: 640px) { .ing-grid { grid-template-columns: repeat(2,1fr); } }
@media (min-width: 992px) { .ing-grid { grid-template-columns: repeat(3,1fr); } }

/* ============================================
   SCIENCE
   ============================================ */
.science { background: var(--dark2); }
.science .section-header h2 { color: var(--white); }
.science .section-sub { color: #94A3B8; }
.science .section-tag { background: rgba(6,182,212,0.15); color: #67E8F9; }
.science-grid { display: grid; grid-template-columns: 1fr; gap: 24px; }
.science-card { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); border-radius: var(--radius); padding: 28px; transition: var(--transition); }
.science-card:hover { background: rgba(255,255,255,0.08); border-color: var(--accent); transform: translateY(-4px); }
.science-icon { font-size: 32px; margin-bottom: 14px; }
.science-card h3 { font-family: var(--font-heading); font-weight: 800; font-size: 17px; color: var(--white); margin-bottom: 12px; }
.science-card p { font-size: 15px; color: #CBD5E1; line-height: 1.8; margin-bottom: 14px; }
.science-ref { font-size: 12px; color: #64748B; font-style: italic; border-top: 1px solid rgba(255,255,255,0.08); padding-top: 12px; }
@media (min-width: 640px) { .science-grid { grid-template-columns: repeat(2,1fr); } }

/* ============================================
   GUARANTEE
   ============================================ */
.guarantee { background: linear-gradient(160deg, #F0FDF4 0%, #DCFCE7 100%); }
.guarantee-grid { display: flex; flex-direction: column; gap: 50px; }
.guarantee-img-wrap { display: flex; justify-content: center; }
.guarantee-img { width: 320px; max-width: 100%; animation: guarantee-float 4s ease-in-out infinite; }
@keyframes guarantee-float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-12px)} }
.guarantee-content { display: flex; flex-direction: column; gap: 16px; }
.guarantee-content h2 { font-family: var(--font-heading); font-weight: 800; font-size: 28px; color: var(--dark); }
.guarantee-intro { font-size: 16px; color: #334155; line-height: 1.8; }
.guarantee-points { display: flex; flex-direction: column; gap: 20px; }
.guarantee-point { display: flex; gap: 16px; align-items: flex-start; }
.gp-icon { width: 50px; height: 50px; background: var(--white); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 22px; flex-shrink: 0; box-shadow: var(--shadow-sm); }
.gp-text h4 { font-family: var(--font-heading); font-weight: 700; font-size: 16px; color: var(--dark); margin-bottom: 6px; }
.gp-text p { font-size: 14px; color: var(--gray); line-height: 1.7; }
@media (min-width: 768px) {
  .guarantee-grid { flex-direction: row; align-items: center; gap: 70px; }
  .guarantee-img-wrap { flex: 0 0 350px; }
  .guarantee-content h2 { font-size: 34px; }
}

/* ============================================
   BENEFITS
   ============================================ */
.benefits { background: var(--white); }
.benefits-grid { display: grid; grid-template-columns: 1fr; gap: 24px; }
.benefit-item { display: flex; gap: 20px; align-items: flex-start; background: var(--gray-light); border-radius: var(--radius); padding: 24px; transition: var(--transition); }
.benefit-item:hover { background: var(--primary-pale); transform: translateX(8px); box-shadow: var(--shadow-sm); }
.benefit-icon { font-size: 32px; flex-shrink: 0; }
.benefit-text h3 { font-family: var(--font-heading); font-weight: 700; font-size: 17px; color: var(--dark); margin-bottom: 8px; }
.benefit-text p { font-size: 15px; color: var(--gray); line-height: 1.7; }
@media (min-width: 640px) { .benefits-grid { grid-template-columns: repeat(2,1fr); } }

/* ============================================
   FAQ
   ============================================ */
.faq { background: var(--gray-light); }
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--white); border-radius: var(--radius); border: 1px solid var(--border); overflow: hidden; transition: var(--transition); }
.faq-item:hover { border-color: var(--primary-light); }
.faq-q { display: flex; justify-content: space-between; align-items: center; gap: 14px; width: 100%; background: none; border: none; cursor: pointer; padding: 20px 24px; font-family: var(--font-heading); font-weight: 700; font-size: 16px; color: var(--dark); text-align: left; min-height: 60px; transition: var(--transition); }
.faq-q:hover { color: var(--primary); }
.faq-arrow { font-size: 12px; color: var(--primary); transition: transform 0.3s ease; flex-shrink: 0; }
.faq-item.open .faq-arrow { transform: rotate(180deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s ease; padding: 0 24px; }
.faq-item.open .faq-a { max-height: 400px; padding: 0 24px 22px; }
.faq-a p { font-size: 15px; color: var(--gray); line-height: 1.8; }

/* ============================================
   FINAL CTA
   ============================================ */
.final-cta { background: linear-gradient(160deg, #0F172A 0%, #1E3A5F 50%, #0F172A 100%); position: relative; overflow: hidden; }
.final-cta::before { content: ''; position: absolute; inset: 0; background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%233B82F6' fill-opacity='0.04'%3E%3Ccircle cx='30' cy='30' r='4'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E"); }
.final-cta-inner { position: relative; z-index: 1; display: flex; flex-direction: column; align-items: center; gap: 50px; }
.final-cta-img { display: flex; justify-content: center; }
.final-bottle { width: 300px; max-width: 100%; animation: bottle-float 4s ease-in-out infinite; filter: drop-shadow(0 20px 50px rgba(59,130,246,0.3)); }
.final-cta-content { text-align: center; max-width: 600px; }
.final-cta-content .section-tag { background: rgba(239,68,68,0.15); color: #FCA5A5; }
.final-cta-content h2 { font-family: var(--font-heading); font-weight: 900; font-size: 28px; color: var(--white); line-height: 1.3; margin-bottom: 24px; }
.final-price-wrap { margin-bottom: 20px; }
.final-old-price { font-size: 16px; color: #64748B; display: block; margin-bottom: 8px; }
.final-new-price { font-family: var(--font-heading); font-weight: 900; font-size: 36px; color: var(--gold); }
.final-desc { font-size: 16px; color: #CBD5E1; line-height: 1.8; margin-bottom: 20px; }
.final-points { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 28px; }
.final-points span { font-family: var(--font-heading); font-weight: 600; font-size: 13px; color: var(--accent2); background: rgba(16,185,129,0.1); padding: 6px 14px; border-radius: var(--radius-full); border: 1px solid rgba(16,185,129,0.2); }
.btn-final { display: block; margin: 0 auto 16px; }
.final-trust { display: flex; align-items: center; justify-content: center; gap: 10px; font-size: 14px; color: #94A3B8; }
.final-trust img { display: inline; }
@media (min-width: 768px) {
  .final-cta-inner { flex-direction: row; justify-content: center; gap: 70px; }
  .final-cta-content { text-align: left; }
  .final-cta-content h2 { font-size: 36px; }
  .final-points { justify-content: flex-start; }
  .final-trust { justify-content: flex-start; }
  .btn-final { margin: 0 0 16px; }
}

/* ============================================
   FOOTER
   ============================================ */
.footer { background: var(--dark); padding: 60px 0 30px; }
.footer-top { display: grid; grid-template-columns: 1fr; gap: 36px; margin-bottom: 40px; text-align: center; }
.footer-brand { display: flex; flex-direction: column; align-items: center; gap: 10px; }
.footer-brand img { width: 55px; height: 55px; object-fit: contain; border-radius: 10px; }
.footer-brand-name { font-family: var(--font-heading); font-weight: 800; font-size: 22px; color: var(--white); }
.footer-tagline { font-size: 14px; color: #64748B; }
.footer-links-col h4, .footer-social-col h4 { font-family: var(--font-heading); font-weight: 700; font-size: 14px; color: var(--white); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 16px; }
.footer-links-col { display: flex; flex-direction: column; gap: 10px; align-items: center; }
.footer-links-col a { font-size: 15px; color: #94A3B8; transition: var(--transition); }
.footer-links-col a:hover { color: var(--primary-light); }
.footer-social-col { display: flex; flex-direction: column; align-items: center; }
.social-icons { display: flex; gap: 12px; }
.social-icon { width: 44px; height: 44px; background: rgba(255,255,255,0.07); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #94A3B8; transition: var(--transition); }
.social-icon:hover { background: var(--primary); color: var(--white); transform: translateY(-3px); }
.footer-disclaimer { border-top: 1px solid rgba(255,255,255,0.08); border-bottom: 1px solid rgba(255,255,255,0.08); padding: 24px 0; margin-bottom: 24px; }
.footer-disclaimer p { font-size: 13px; color: #64748B; line-height: 1.7; text-align: center; }
.footer-legal-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; align-items: center; margin-bottom: 20px; }
.legal-link { font-size: 13px; color: #94A3B8; transition: var(--transition); padding: 4px; }
.legal-link:hover { color: var(--primary-light); }
.link-separator { color: #334155; }
.footer-copy { text-align: center; font-size: 13px; color: #475569; }
.footer-copy a { color: var(--primary-light); }
@media (min-width: 640px) { .footer-top { grid-template-columns: repeat(2,1fr); text-align: left; } .footer-brand { align-items: flex-start; } .footer-links-col { align-items: flex-start; } .footer-social-col { align-items: flex-start; } }
@media (min-width: 1024px) { .footer-top { grid-template-columns: 2fr 1fr 1fr; } }

/* ============================================
   SCROLL TO TOP
   ============================================ */
.scroll-top { position: fixed; bottom: 24px; right: 24px; width: 52px; height: 52px; background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: var(--white); border: none; border-radius: 50%; font-size: 20px; cursor: pointer; box-shadow: var(--shadow-md); transition: var(--transition); opacity: 0; pointer-events: none; z-index: 999; display: flex; align-items: center; justify-content: center; }
.scroll-top.visible { opacity: 1; pointer-events: auto; }
.scroll-top:hover { transform: scale(1.1) translateY(-4px); box-shadow: var(--shadow-lg); }

/* ============================================
   PURCHASE POPUP
   ============================================ */
.purchase-popup { position: fixed; bottom: 20px; left: 16px; right: 16px; max-width: 360px; background: var(--white); border-radius: var(--radius); border-left: 5px solid var(--accent2); padding: 14px 16px; display: flex; align-items: center; gap: 12px; box-shadow: 0 10px 40px rgba(0,0,0,0.2); transform: translateX(-120%); transition: transform 0.4s cubic-bezier(0.34,1.56,0.64,1); z-index: 997; }
.purchase-popup.show { transform: translateX(0); }
.pp-avatar { font-size: 26px; flex-shrink: 0; }
.pp-text { flex: 1; }
.pp-text strong { display: block; font-family: var(--font-heading); font-weight: 700; font-size: 14px; color: var(--dark); }
.pp-text span { font-size: 13px; color: var(--gray); }
.pp-close { background: none; border: none; cursor: pointer; font-size: 16px; color: #94A3B8; min-width: 28px; min-height: 28px; display: flex; align-items: center; justify-content: center; border-radius: 50%; }
.pp-close:hover { background: var(--gray-light); color: var(--dark); }
@media (min-width: 480px) { .purchase-popup { left: 20px; right: auto; } }

/* ============================================
   EXIT POPUP
   ============================================ */
.exit-popup-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.75); z-index: 9999; display: flex; align-items: center; justify-content: center; padding: 20px; opacity: 0; pointer-events: none; transition: opacity 0.3s ease; }
.exit-popup-overlay.show { opacity: 1; pointer-events: auto; }
.exit-popup { background: var(--white); border-radius: 24px; padding: 40px 32px; text-align: center; max-width: 440px; width: 100%; position: relative; animation: popup-in 0.4s cubic-bezier(0.34,1.56,0.64,1); }
@keyframes popup-in { from{transform:scale(0.8) translateY(30px);opacity:0} to{transform:scale(1) translateY(0);opacity:1} }
.exit-close { position: absolute; top: 14px; right: 14px; background: var(--gray-light); border: none; width: 34px; height: 34px; border-radius: 50%; cursor: pointer; font-size: 16px; color: var(--gray); display: flex; align-items: center; justify-content: center; transition: var(--transition); }
.exit-close:hover { background: var(--danger); color: var(--white); }
.ep-icon { font-size: 50px; margin-bottom: 14px; }
.exit-popup h3 { font-family: var(--font-heading); font-weight: 800; font-size: 22px; color: var(--dark); margin-bottom: 14px; }
.exit-popup p { font-size: 15px; color: var(--gray); line-height: 1.7; margin-bottom: 16px; }
.ep-price { font-family: var(--font-heading); font-weight: 800; font-size: 28px; color: var(--primary); margin-bottom: 22px; }
.ep-price s { font-weight: 400; color: #94A3B8; font-size: 18px; }
.btn-exit-cta { display: block; width: 100%; background: linear-gradient(135deg, var(--gold), #F97316); color: var(--white); font-family: var(--font-heading); font-weight: 700; font-size: 17px; padding: 16px 24px; border-radius: var(--radius-full); margin-bottom: 14px; min-height: 52px; transition: var(--transition); }
.btn-exit-cta:hover { transform: scale(1.04); box-shadow: 0 8px 30px rgba(245,158,11,0.4); }
.ep-dismiss { display: block; font-size: 13px; color: #94A3B8; transition: var(--transition); }
.ep-dismiss:hover { color: var(--primary); }

/* ============================================
   ANIMATIONS (Intersection Observer)
   ============================================ */
.animate-up { opacity: 0; transform: translateY(40px); transition: opacity 0.6s ease, transform 0.6s ease; }
.animate-left { opacity: 0; transform: translateX(-40px); transition: opacity 0.7s ease, transform 0.7s ease; }
.animate-right { opacity: 0; transform: translateX(40px); transition: opacity 0.7s ease, transform 0.7s ease; }
.animate-up.in-view, .animate-left.in-view, .animate-right.in-view { opacity: 1; transform: none; }
.animate-up:nth-child(1) { transition-delay: 0.1s; }
.animate-up:nth-child(2) { transition-delay: 0.2s; }
.animate-up:nth-child(3) { transition-delay: 0.3s; }
.animate-up:nth-child(4) { transition-delay: 0.4s; }