/* =============================================
   ADVANCED AMINO FORMULA — STYLES.CSS
   Design: Bold Energetic + Medical Professional Hybrid
   Primary: #0F172A | Accent: #22D3EE | Green: #10B981
   Fonts: Montserrat (headings) + Open Sans (body)
   ============================================= */

/* === 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: 'Open Sans', sans-serif;
  background: #f8fafc;
  color: #1e293b;
  overflow-x: hidden;
  line-height: 1.7;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }

/* === CSS VARIABLES === */
:root {
  --primary: #0F172A;
  --accent: #22D3EE;
  --accent2: #10B981;
  --accent3: #F59E0B;
  --danger: #EF4444;
  --white: #ffffff;
  --light: #f8fafc;
  --muted: #64748b;
  --border: #e2e8f0;
  --radius: 16px;
  --shadow: 0 4px 24px rgba(15,23,42,0.10);
  --shadow-lg: 0 12px 48px rgba(15,23,42,0.18);
  --transition: 0.3s ease;
  --font-head: 'Montserrat', sans-serif;
  --font-body: 'Open Sans', sans-serif;
}

/* === CONTAINER === */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  width: 100%;
}

/* === BUTTONS === */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: linear-gradient(135deg, #22D3EE, #10B981);
  color: #fff;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.05rem;
  padding: 16px 36px;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  min-height: 52px;
  transition: transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 4px 20px rgba(34,211,238,0.35);
  white-space: nowrap;
  text-align: center;
}
.btn-primary:hover { transform: scale(1.05); box-shadow: 0 8px 32px rgba(34,211,238,0.5); }
.btn-primary:active { transform: scale(0.98); }

.pulse-btn { animation: pulse 2.5s infinite; }
@keyframes pulse {
  0%,100% { box-shadow: 0 4px 20px rgba(34,211,238,0.35); }
  50% { box-shadow: 0 4px 40px rgba(34,211,238,0.7), 0 0 0 8px rgba(34,211,238,0.12); }
}

/* === SECTION TITLES === */
.section-title {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  color: var(--primary);
  text-align: center;
  margin-bottom: 12px;
  line-height: 1.25;
}
.section-title span { color: var(--accent); }
.section-sub {
  text-align: center;
  color: var(--muted);
  font-size: 1rem;
  margin-bottom: 48px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

/* === AOS ANIMATIONS === */
[data-aos] { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
[data-aos].aos-visible { opacity: 1; transform: translateY(0); }
[data-aos="fade-right"] { transform: translateX(-30px); }
[data-aos="fade-right"].aos-visible { transform: translateX(0); }
[data-aos="fade-left"] { transform: translateX(30px); }
[data-aos="fade-left"].aos-visible { transform: translateX(0); }
[data-aos="zoom-in"] { transform: scale(0.88); }
[data-aos="zoom-in"].aos-visible { transform: scale(1); }
[data-delay="100"] { transition-delay: 0.1s; }
[data-delay="200"] { transition-delay: 0.2s; }
[data-delay="300"] { transition-delay: 0.3s; }

/* =============================================
   SECTION 1: NAVBAR
   ============================================= */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(15, 23, 42, 0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(34,211,238,0.15);
  transition: padding var(--transition), box-shadow var(--transition);
}
.navbar.scrolled { box-shadow: 0 4px 24px rgba(0,0,0,0.3); }

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.1rem;
  color: #fff;
}
.nav-logo img { width: 40px; height: 40px; border-radius: 8px; object-fit: cover; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-link {
  color: rgba(255,255,255,0.8);
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.9rem;
  transition: color var(--transition);
}
.nav-link:hover { color: var(--accent); }

.nav-cta {
  background: linear-gradient(135deg, #22D3EE, #10B981);
  color: #fff;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.9rem;
  padding: 10px 24px;
  border-radius: 50px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  transition: transform var(--transition), box-shadow var(--transition);
}
.nav-cta:hover { transform: scale(1.05); box-shadow: 0 4px 16px rgba(34,211,238,0.4); }

.hamburger {
  display: none;
  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: 2px;
  background: #fff;
  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); }

/* =============================================
   SECTION 2: HERO
   ============================================= */
.hero {
  position: relative;
  background: linear-gradient(135deg, #0F172A 0%, #1e3a5f 50%, #0F172A 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 100px 20px 60px;
  overflow: hidden;
}

.hero-particles {
  display: none;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
  width: 100%;
}

.hero-image {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}
.hero-image-glow {
  display: none;
}

.hero-bottle {
  width: 100%;
  max-width: 480px;
  filter: drop-shadow(0 20px 60px rgba(34,211,238,0.25));
  object-fit: contain;
}

.hero-badge {
  position: absolute;
  bottom: 10px;
  right: 20px;
  background: linear-gradient(135deg, var(--accent3), #f97316);
  color: #fff;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.75rem;
  padding: 8px 14px;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 4px 16px rgba(245,158,11,0.4);
}
.hero-badge small { display: block; font-weight: 500; opacity: 0.9; }

.hero-content { color: #fff; }
.hero-eyebrow {
  display: inline-block;
  background: rgba(34,211,238,0.15);
  border: 1px solid rgba(34,211,238,0.4);
  color: var(--accent);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 20px;
}

.hero-content h1 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.8rem, 4.5vw, 3rem);
  line-height: 1.18;
  margin-bottom: 24px;
  color: #fff;
}
.hero-highlight {
  background: linear-gradient(135deg, #22D3EE, #10B981);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc { color: rgba(255,255,255,0.82); font-size: 1.02rem; line-height: 1.8; margin-bottom: 18px; }

.hero-stats {
  display: flex;
  gap: 28px;
  margin: 28px 0;
}
.stat {
  text-align: center;
  border-right: 1px solid rgba(255,255,255,0.15);
  padding-right: 28px;
}
.stat:last-child { border-right: none; }
.stat strong { display: block; font-family: var(--font-head); font-weight: 800; font-size: 1.6rem; color: var(--accent); }
.stat span { font-size: 0.78rem; color: rgba(255,255,255,0.65); text-transform: uppercase; letter-spacing: 0.05em; }

.hero-cta { font-size: 1.1rem; padding: 18px 40px; margin-top: 8px; }
.hero-note { font-size: 0.82rem; color: rgba(255,255,255,0.6); margin-top: 14px; }

.hero-wave {
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
}
.hero-wave svg { width: 100%; height: 60px; }

/* =============================================
   SECTION 3: WHY CHOOSE US
   ============================================= */
.why-choose { padding: 80px 0; background: #f8fafc; }

.badges-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.badge-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  cursor: default;
}
.badge-card:hover {
  transform: scale(1.05) rotate(1deg);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}

.badge-icon {
  width: 160px;
  height: 160px;
  margin: 0 auto 18px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.badge-icon img { width: 160px; height: 160px; object-fit: contain; }

.badge-card h3 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1rem;
  color: var(--primary);
  margin-bottom: 10px;
}
.badge-card p { color: var(--muted); font-size: 0.88rem; line-height: 1.6; }

/* =============================================
   SECTION 4: WHAT IS
   ============================================= */
.what-is { padding: 80px 0; background: #fff; }

.what-is-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.what-is-image {
  position: relative;
}
.what-is-image img {
  width: 100%;
  max-width: 560px;
  border-radius: 24px;
  box-shadow: var(--shadow-lg);
  object-fit: cover;
  min-height: 400px;
}
.what-is-badge {
  position: absolute;
  top: 20px;
  left: 20px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.78rem;
  padding: 8px 16px;
  border-radius: 50px;
}

.eyebrow-label {
  display: inline-block;
  color: var(--accent);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.what-is-content h2 {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  line-height: 1.25;
  color: var(--primary);
  margin-bottom: 20px;
}
.what-is-content h2 span { color: var(--accent); }
.what-is-content p { color: #475569; font-size: 1rem; line-height: 1.8; margin-bottom: 18px; }

/* =============================================
   SECTION 5: HOW IT WORKS
   ============================================= */
.how-it-works { padding: 80px 0; background: linear-gradient(135deg, #0F172A 0%, #1e3a5f 100%); }
.how-it-works .section-title { color: #fff; }
.how-it-works .section-sub { color: rgba(255,255,255,0.65); }

.accordion-list { max-width: 820px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }

.accordion-item {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(34,211,238,0.2);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition);
}
.accordion-item.active { border-color: var(--accent); }

.accordion-header {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 16px;
  background: none;
  border: none;
  padding: 20px 24px;
  cursor: pointer;
  color: #fff;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1rem;
  text-align: left;
  min-height: 64px;
  transition: background var(--transition);
}
.accordion-header:hover { background: rgba(34,211,238,0.08); }

.acc-num {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: var(--primary);
  font-weight: 800;
  font-size: 0.78rem;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.acc-icon { margin-left: auto; font-size: 1.4rem; color: var(--accent); transition: transform 0.3s ease; flex-shrink: 0; }
.accordion-item.active .acc-icon { transform: rotate(45deg); }

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  padding: 0 24px;
}
.accordion-body p { color: rgba(255,255,255,0.78); font-size: 0.95rem; line-height: 1.8; padding-bottom: 20px; }
.accordion-item.active .accordion-body { max-height: 400px; }

/* =============================================
   SECTION 6: REVIEWS
   ============================================= */
.reviews { padding: 80px 0; background: #f8fafc; }

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.review-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition);
}
.review-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.featured-review { border-color: var(--accent); background: linear-gradient(135deg, #f0fdff 0%, #f0fdf4 100%); }

.review-top { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }
.reviewer-img { width: 110px; height: 110px; border-radius: 50%; object-fit: cover; object-position: center top; border: 3px solid var(--accent); flex-shrink: 0; }
.review-top strong { display: block; font-family: var(--font-head); font-weight: 700; font-size: 0.95rem; color: var(--primary); }
.review-top span { font-size: 0.82rem; color: var(--muted); }

.stars { color: #f59e0b; font-size: 1.1rem; letter-spacing: 2px; margin-bottom: 12px; }
.review-card p { color: #475569; font-size: 0.92rem; line-height: 1.7; }

.reviews-rating-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
  padding: 20px;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.reviews-rating-bar span { color: var(--muted); font-weight: 600; font-size: 0.92rem; }

/* =============================================
   SECTION 7/13: PRICING
   ============================================= */
.pricing { padding: 80px 0; background: linear-gradient(135deg, #0F172A 0%, #1e3a5f 100%); }
.pricing .section-title { color: #fff; }
.pricing .section-sub { color: rgba(255,255,255,0.65); }
.pricing-2 { background: linear-gradient(135deg, #0a2540 0%, #0F172A 100%); }

.countdown-wrapper {
  text-align: center;
  margin-bottom: 48px;
}
.countdown-label {
  color: rgba(255,255,255,0.8);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 16px;
}
.countdown-timer {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: rgba(34,211,238,0.1);
  border: 2px solid rgba(34,211,238,0.3);
  border-radius: 20px;
  padding: 16px 32px;
}
.time-block { text-align: center; }
.time-block span {
  display: block;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 2.8rem;
  color: var(--accent);
  line-height: 1;
  min-width: 64px;
}
.time-block small { color: rgba(255,255,255,0.6); font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; }
.time-sep { font-size: 2.5rem; color: var(--accent); font-weight: 800; line-height: 1; }

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}

.price-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 24px;
  padding: 32px 24px;
  text-align: center;
  position: relative;
  transition: transform var(--transition), box-shadow var(--transition);
}
.price-card:hover { transform: translateY(-6px); }
.price-card.popular {
  background: linear-gradient(145deg, rgba(34,211,238,0.12), rgba(16,185,129,0.12));
  border-color: var(--accent);
  box-shadow: 0 8px 40px rgba(34,211,238,0.2);
}

.popular-tag {
  position: absolute;
  top: -16px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 0.72rem;
  padding: 6px 20px;
  border-radius: 50px;
  white-space: nowrap;
  letter-spacing: 0.05em;
}

.price-label {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 6px;
}
.price-bottles { color: #fff; font-family: var(--font-head); font-weight: 800; font-size: 1.3rem; }
.price-supply { color: rgba(255,255,255,0.6); font-size: 0.85rem; margin-bottom: 20px; }

.bottle-img {
  margin: 0 auto 20px;
  object-fit: contain;
  filter: drop-shadow(0 8px 24px rgba(34,211,238,0.2));
  width: 100%;
  max-width: 220px;
  min-height: 200px;
}

.price-main {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 2.4rem;
  color: #fff;
  line-height: 1;
  margin-bottom: 6px;
}
.price-main span { font-size: 1rem; color: rgba(255,255,255,0.6); }
.price-total { color: rgba(255,255,255,0.7); font-size: 0.9rem; margin-bottom: 16px; }
.price-total s { color: var(--danger); }
.price-total strong { color: var(--accent2); }

.price-badges { display: flex; flex-direction: column; gap: 8px; margin-bottom: 16px; }
.pbadge {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 8px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.75rem;
}
.pbadge.green { background: rgba(16,185,129,0.15); color: #10B981; border: 1px solid rgba(16,185,129,0.3); }
.pbadge.blue { background: rgba(34,211,238,0.1); color: var(--accent); border: 1px solid rgba(34,211,238,0.3); }

.btn-price {
  display: block;
  width: 100%;
  padding: 14px 24px;
  background: rgba(255,255,255,0.1);
  border: 2px solid rgba(255,255,255,0.2);
  color: #fff;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: 50px;
  min-height: 50px;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
  margin-bottom: 14px;
}
.btn-price:hover { background: rgba(255,255,255,0.2); transform: scale(1.03); }
.btn-price.btn-popular {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-color: transparent;
  box-shadow: 0 4px 20px rgba(34,211,238,0.35);
}
.btn-price.btn-popular:hover { box-shadow: 0 6px 30px rgba(34,211,238,0.5); transform: scale(1.04); }

.payment-img { margin: 0 auto; opacity: 0.75; }
.pricing-star { text-align: center; margin-top: 40px; }
.pricing-star img { margin: 0 auto; }

/* =============================================
   SECTION 8: BONUSES
   ============================================= */
.bonuses { padding: 80px 0; background: #fff; }

.bonus-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.bonus-card {
  background: linear-gradient(135deg, #f0fdff, #f0fdf4);
  border: 2px solid rgba(34,211,238,0.25);
  border-radius: 24px;
  padding: 36px 32px;
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
}
.bonus-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

.bonus-num {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 20px;
}
.bonus-card img { margin: 0 auto 20px; max-width: 280px; width: 100%; border-radius: 12px; }
.bonus-card h3 { font-family: var(--font-head); font-weight: 700; font-size: 1.15rem; color: var(--primary); margin-bottom: 12px; }
.bonus-card p { color: #475569; font-size: 0.92rem; line-height: 1.7; margin-bottom: 16px; }
.bonus-value { font-family: var(--font-head); font-weight: 700; color: var(--accent2); font-size: 1rem; }
.bonus-value s { color: var(--danger); }

/* =============================================
   SECTION 9: INGREDIENTS
   ============================================= */
.ingredients { padding: 80px 0; background: #f8fafc; }

.ingredients-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.ingredient-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.ingredient-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--accent); }

.ing-icon { font-size: 2rem; margin-bottom: 14px; }
.ingredient-card h3 { font-family: var(--font-head); font-weight: 700; font-size: 1rem; color: var(--primary); margin-bottom: 10px; }
.ingredient-card p { color: #475569; font-size: 0.88rem; line-height: 1.7; }

/* =============================================
   SECTION 10: SCIENCE
   ============================================= */
.science { padding: 80px 0; background: #fff; }

.science-list { display: flex; flex-direction: column; gap: 24px; }

.science-item {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  background: #f8fafc;
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid var(--border);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.science-item:hover { border-color: var(--accent); box-shadow: var(--shadow); }

.science-icon {
  font-size: 2rem;
  background: linear-gradient(135deg, rgba(34,211,238,0.1), rgba(16,185,129,0.1));
  border-radius: 12px;
  padding: 14px;
  flex-shrink: 0;
  min-width: 60px;
  text-align: center;
}
.science-content h3 { font-family: var(--font-head); font-weight: 700; font-size: 1.05rem; color: var(--primary); margin-bottom: 10px; }
.science-content p { color: #475569; font-size: 0.92rem; line-height: 1.75; }

/* =============================================
   SECTION 11: GUARANTEE
   ============================================= */
.guarantee { padding: 80px 0; background: linear-gradient(135deg, #f0fdff 0%, #f0fdf4 100%); }

.guarantee-grid {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: 60px;
  align-items: center;
}

.guarantee-image img {
  width: 100%;
  max-width: 420px;
  margin: 0 auto;
  filter: drop-shadow(0 12px 40px rgba(16,185,129,0.2));
}

.guarantee-content h2 {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  color: var(--primary);
  margin-bottom: 28px;
}
.guarantee-content h2 span { color: var(--accent2); }

.guarantee-points { display: flex; flex-direction: column; gap: 24px; }
.g-point { display: flex; gap: 18px; align-items: flex-start; }
.g-icon {
  font-size: 1.5rem;
  background: linear-gradient(135deg, rgba(16,185,129,0.1), rgba(34,211,238,0.1));
  border-radius: 12px;
  padding: 12px;
  flex-shrink: 0;
  min-width: 52px;
  text-align: center;
}
.g-point h3 { font-family: var(--font-head); font-weight: 700; font-size: 1rem; color: var(--primary); margin-bottom: 6px; }
.g-point p { color: #475569; font-size: 0.92rem; line-height: 1.7; }

/* =============================================
   SECTION 12: BENEFITS
   ============================================= */
.benefits { padding: 80px 0; background: #f8fafc; }

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.benefit-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: #fff;
  border-radius: var(--radius);
  padding: 24px 20px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: transform var(--transition), border-color var(--transition);
}
.benefit-item:hover { transform: translateX(4px); border-color: var(--accent2); }

.benefit-check {
  font-size: 1.3rem;
  flex-shrink: 0;
  padding-top: 2px;
}
.benefit-item h3 { font-family: var(--font-head); font-weight: 700; font-size: 0.95rem; color: var(--primary); margin-bottom: 6px; }
.benefit-item p { color: #475569; font-size: 0.88rem; line-height: 1.65; }

/* =============================================
   SECTION 14: FAQ
   ============================================= */
.faq { padding: 80px 0; background: #fff; }

.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition);
}
.faq-item.active { border-color: var(--accent); }

.faq-header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: #fff;
  border: none;
  padding: 20px 24px;
  cursor: pointer;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.98rem;
  color: var(--primary);
  text-align: left;
  min-height: 60px;
  transition: background var(--transition);
}
.faq-header:hover { background: #f8fafc; }
.faq-icon { font-size: 1.4rem; color: var(--accent); transition: transform 0.3s ease; flex-shrink: 0; }
.faq-item.active .faq-icon { transform: rotate(45deg); }

.faq-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  padding: 0 24px;
  background: #f8fafc;
}
.faq-body p { color: #475569; font-size: 0.92rem; line-height: 1.8; padding: 16px 0; }
.faq-item.active .faq-body { max-height: 400px; }

/* =============================================
   SECTION 15: FINAL CTA
   ============================================= */
.final-cta {
  position: relative;
  padding: 100px 20px;
  background: linear-gradient(135deg, #0F172A 0%, #1e3a5f 60%, #0F172A 100%);
  overflow: hidden;
  text-align: center;
}

.final-cta-bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(34,211,238,0.12) 0%, transparent 70%);
  pointer-events: none;
}

.final-cta-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 0 auto;
}

.final-bottle-img {
  margin: 0 auto 32px;
  filter: drop-shadow(0 20px 60px rgba(34,211,238,0.3));
  max-width: 380px;
  width: 100%;
}

.final-cta-content h2 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(2rem, 5vw, 3rem);
  color: #fff;
  line-height: 1.2;
  margin-bottom: 8px;
}
.final-cta-content h3 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.2rem, 3vw, 1.6rem);
  color: var(--accent);
  margin-bottom: 24px;
}

.final-price {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.old-price { color: rgba(255,255,255,0.55); font-size: 1.05rem; }
.old-price s { color: var(--danger); }
.new-price { font-family: var(--font-head); font-weight: 800; font-size: 1.8rem; color: var(--accent); }

.final-desc { color: rgba(255,255,255,0.78); font-size: 1rem; line-height: 1.7; margin-bottom: 32px; }

.btn-final {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #22D3EE, #10B981);
  color: #fff;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.15rem;
  padding: 20px 48px;
  border-radius: 50px;
  min-height: 60px;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 6px 32px rgba(34,211,238,0.4);
  margin-bottom: 16px;
}
.btn-final:hover { transform: scale(1.05); box-shadow: 0 10px 48px rgba(34,211,238,0.6); }

.final-note { color: rgba(255,255,255,0.6); font-size: 0.82rem; margin-bottom: 20px; }
.final-stars { display: flex; justify-content: center; }
.final-stars img { margin: 0 auto; }

/* =============================================
   SECTION 16: FOOTER
   ============================================= */
.footer { background: var(--primary); padding: 60px 0 28px; color: rgba(255,255,255,0.75); }

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: 32px;
}

.footer-brand { display: flex; flex-direction: column; gap: 12px; }
.footer-brand img { width: 48px; height: 48px; border-radius: 10px; }
.footer-brand span { font-family: var(--font-head); font-weight: 700; color: #fff; font-size: 1.05rem; }
.footer-brand p { font-size: 0.88rem; line-height: 1.65; }

.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links h4 { font-family: var(--font-head); font-weight: 700; color: #fff; margin-bottom: 6px; font-size: 0.95rem; }
.footer-links a { color: rgba(255,255,255,0.65); font-size: 0.88rem; transition: color var(--transition); }
.footer-links a:hover { color: var(--accent); }

.footer-legal h4 { font-family: var(--font-head); font-weight: 700; color: #fff; margin-bottom: 14px; font-size: 0.95rem; }
.footer-legal-links { display: flex; flex-wrap: wrap; gap: 8px 0; align-items: center; }
.legal-link { color: rgba(255,255,255,0.65); font-size: 0.85rem; transition: color var(--transition); margin-right: 2px; }
.legal-link:hover { color: var(--accent); }
.link-separator { color: rgba(255,255,255,0.3); padding: 0 6px; }

.footer-social { display: flex; gap: 12px; justify-content: center; margin-bottom: 32px; }
.social-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.7);
  transition: background var(--transition), color var(--transition);
}
.social-btn:hover { background: var(--accent); color: var(--primary); }

.footer-disclaimer {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 12px;
  padding: 16px 20px;
  font-size: 0.8rem;
  line-height: 1.65;
  color: rgba(255,255,255,0.45);
  margin-bottom: 24px;
}

.footer-copy { text-align: center; font-size: 0.82rem; color: rgba(255,255,255,0.4); }
.footer-copy a { color: var(--accent); }

/* =============================================
   SCROLL TO TOP
   ============================================= */
.scroll-top {
  position: fixed;
  bottom: 80px;
  right: 24px;
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: var(--primary);
  font-size: 1.2rem;
  font-weight: 800;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(34,211,238,0.4);
  opacity: 0;
  transform: scale(0.8);
  transition: opacity var(--transition), transform var(--transition);
  z-index: 999;
}
.scroll-top.visible { opacity: 1; transform: scale(1); }
.scroll-top:hover { transform: scale(1.1); }

/* =============================================
   PURCHASE POPUP
   ============================================= */
.purchase-popup {
  position: fixed;
  bottom: 24px;
  left: 24px;
  background: #fff;
  border-radius: 16px;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 14px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.18);
  border-left: 4px solid var(--accent2);
  max-width: 300px;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.4s ease, transform 0.4s ease;
  z-index: 998;
  pointer-events: none;
}
.purchase-popup.show { opacity: 1; transform: translateY(0); pointer-events: auto; }
.popup-close {
  position: absolute;
  top: 8px;
  right: 10px;
  cursor: pointer;
  font-size: 1rem;
  color: #94a3b8;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background var(--transition);
}
.popup-close:hover { background: #f1f5f9; }
.popup-icon { font-size: 1.6rem; }
.popup-text { font-size: 0.82rem; line-height: 1.5; color: #475569; }
.popup-text strong { color: var(--primary); font-weight: 700; }

/* =============================================
   EXIT INTENT POPUP
   ============================================= */
.exit-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  backdrop-filter: blur(4px);
}
.exit-overlay.show { opacity: 1; pointer-events: all; }

.exit-popup {
  background: #fff;
  border-radius: 24px;
  padding: 48px 40px;
  max-width: 480px;
  width: 100%;
  text-align: center;
  position: relative;
  box-shadow: 0 20px 80px rgba(0,0,0,0.35);
  animation: popupIn 0.4s cubic-bezier(.18,.89,.32,1.28);
}
@keyframes popupIn {
  from { transform: scale(0.8); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}
.exit-close {
  position: absolute;
  top: 16px;
  right: 20px;
  background: #f1f5f9;
  border: none;
  border-radius: 50%;
  width: 36px;
  height: 36px;
  font-size: 1.3rem;
  cursor: pointer;
  color: #64748b;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
  min-height: 36px;
}
.exit-close:hover { background: #e2e8f0; }

.exit-emoji { font-size: 3rem; margin-bottom: 16px; }
.exit-popup h3 { font-family: var(--font-head); font-weight: 800; font-size: 1.4rem; color: var(--primary); margin-bottom: 12px; line-height: 1.3; }
.exit-popup p { color: #475569; font-size: 0.95rem; line-height: 1.6; margin-bottom: 20px; }

.exit-offer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 24px;
}
.exit-old { font-family: var(--font-head); font-size: 1.2rem; color: var(--danger); text-decoration: line-through; }
.exit-new { font-family: var(--font-head); font-weight: 900; font-size: 2rem; color: var(--accent2); }

.btn-exit {
  display: block;
  width: 100%;
  background: linear-gradient(135deg, #22D3EE, #10B981);
  color: #fff;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.05rem;
  padding: 16px 32px;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
  margin-bottom: 12px;
  min-height: 54px;
  box-shadow: 0 4px 20px rgba(34,211,238,0.35);
}
.btn-exit:hover { transform: scale(1.03); box-shadow: 0 6px 32px rgba(34,211,238,0.5); }

.exit-decline { display: block; color: #94a3b8; font-size: 0.82rem; cursor: pointer; text-decoration: underline; transition: color var(--transition); }
.exit-decline:hover { color: var(--danger); }

/* =============================================
   PREFERS REDUCED MOTION
   ============================================= */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* =============================================
   RESPONSIVE — TABLET (max 1024px)
   ============================================= */
@media (max-width: 1024px) {
  .badges-grid { grid-template-columns: repeat(2, 1fr); }
  .reviews-grid { grid-template-columns: repeat(2, 1fr); }
  .guarantee-grid { grid-template-columns: 1fr 1.4fr; gap: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid .footer-legal { grid-column: 1/-1; }
}

/* =============================================
   RESPONSIVE — TABLET (max 768px)
   ============================================= */
@media (max-width: 768px) {
  /* Nav */
  .nav-links {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background: rgba(15,23,42,0.98);
    flex-direction: column;
    align-items: center;
    padding: 32px 20px;
    gap: 20px;
    transform: translateY(-110%);
    transition: transform 0.35s cubic-bezier(.4,0,.2,1);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(34,211,238,0.15);
    z-index: 999;
  }
  .nav-links.open { transform: translateY(0); }
  .hamburger { display: flex; }

  /* Hero */
  .hero { padding: 90px 20px 50px; }
  .hero-container { grid-template-columns: 1fr; gap: 36px; text-align: center; }
  .hero-image { order: -1; }
  .hero-bottle { max-width: 320px; }
  .bottle-img { max-width: 180px; }
  .guarantee-grid { grid-template-columns: 1fr; }
  .guarantee-image img { max-width: 320px; }
  .hero-stats { justify-content: center; gap: 20px; }
  .hero-cta { width: 100%; }

  /* What is */
  .what-is-grid { grid-template-columns: 1fr; gap: 36px; }
  .what-is-image { order: -1; }

  /* Badges */
  .badges-grid { grid-template-columns: repeat(2, 1fr); }

  /* Reviews */
  .reviews-grid { grid-template-columns: 1fr; }

  /* Pricing */
  .pricing-grid { grid-template-columns: 1fr; max-width: 380px; margin: 0 auto; }

  /* Benefits */
  .benefits-grid { grid-template-columns: 1fr; }

  /* Bonus */
  .bonus-grid { grid-template-columns: 1fr; }

  /* Guarantee */
  .guarantee-grid { grid-template-columns: 1fr; text-align: center; }
  .guarantee-image { order: -1; }
  .g-point { flex-direction: column; align-items: center; text-align: center; }

  /* Footer */
  .footer-grid { grid-template-columns: 1fr; gap: 28px; text-align: center; }
  .footer-brand { align-items: center; }
  .footer-links { align-items: center; }

  /* Exit popup */
  .exit-popup { padding: 36px 24px; }
}

/* =============================================
   RESPONSIVE — PHONE (max 576px)
   ============================================= */
@media (max-width: 576px) {
  .badges-grid { grid-template-columns: 1fr; }
  .hero-stats { flex-direction: column; gap: 16px; }
  .stat { border-right: none; border-bottom: 1px solid rgba(255,255,255,0.15); padding-right: 0; padding-bottom: 12px; }
  .stat:last-child { border-bottom: none; }
  .time-block span { font-size: 2.2rem; }
  .countdown-timer { padding: 12px 20px; }
  .science-item { flex-direction: column; }
  .purchase-popup { left: 12px; right: 12px; max-width: none; }
}

/* =============================================
   RESPONSIVE — SMALL (max 480px)
   ============================================= */
@media (max-width: 480px) {
  .btn-final { font-size: 0.95rem; padding: 16px 28px; }
  .final-price { flex-direction: column; gap: 8px; }
  .footer-legal-links { justify-content: center; }
}