/* ===================================================
   GLUCOWAVE — styles.css
   Design: Premium Medical-Teal with vibrant accents
   Fonts: Montserrat (headings) + Open Sans (body)
   =================================================== */

/* ---------- CSS VARIABLES ---------- */
:root {
  --c-primary: #0F6E84;
  --c-primary-dark: #094D5E;
  --c-accent: #00C9A7;
  --c-accent2: #F59E0B;
  --c-cta: #10B981;
  --c-cta-hover: #059669;
  --c-danger: #EF4444;
  --c-bg: #F0FAFA;
  --c-bg2: #E6F7F6;
  --c-white: #FFFFFF;
  --c-dark: #0B2027;
  --c-text: #1E3A3A;
  --c-muted: #4A7070;
  --c-border: #C4E4E4;
  --grad-main: linear-gradient(135deg, #0F6E84 0%, #00C9A7 100%);
  --grad-hero: linear-gradient(160deg, #0B2027 0%, #0F6E84 50%, #00C9A7 100%);
  --grad-cta: linear-gradient(135deg, #10B981 0%, #059669 100%);
  --grad-gold: linear-gradient(135deg, #F59E0B, #D97706);
  --shadow-sm: 0 2px 8px rgba(15,110,132,0.12);
  --shadow-md: 0 8px 32px rgba(15,110,132,0.18);
  --shadow-lg: 0 20px 60px rgba(15,110,132,0.25);
  --radius: 16px;
  --radius-sm: 8px;
  --radius-lg: 24px;
  --transition: 0.3s ease;
}

/* ---------- RESET & BASE ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
}

* { -webkit-tap-highlight-color: transparent; }

body {
  font-family: 'Open Sans', sans-serif;
  background: var(--c-bg);
  color: var(--c-text);
  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; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ---------- TYPOGRAPHY ---------- */
h1, h2, h3, h4 { font-family: 'Montserrat', sans-serif; font-weight: 700; line-height: 1.25; }
h1 { font-size: clamp(26px, 5vw, 52px); font-weight: 900; }
h2 { font-size: clamp(22px, 3.5vw, 38px); font-weight: 800; }
h3 { font-size: clamp(17px, 2.5vw, 22px); font-weight: 700; }
h4 { font-size: clamp(15px, 2vw, 18px); font-weight: 700; }

.gradient-text {
  background: var(--grad-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.section-tag {
  display: inline-block;
  background: var(--grad-main);
  color: #fff;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 14px;
}

.section-title {
  margin-bottom: 12px;
  color: var(--c-dark);
}

.section-sub {
  color: var(--c-muted);
  font-size: 17px;
  margin-bottom: 40px;
  font-family: 'Open Sans', sans-serif;
}

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 52px;
  padding: 14px 32px;
  border-radius: 50px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 16px;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  text-decoration: none;
  border: none;
  outline: none;
  white-space: nowrap;
}

.btn:hover { transform: scale(1.05); box-shadow: 0 12px 40px rgba(16,185,129,0.4); }
.btn:active { transform: scale(0.98); }

.btn-nav {
  background: var(--grad-cta);
  color: #fff;
  padding: 10px 22px;
  min-height: 44px;
  font-size: 14px;
}

.btn-hero {
  background: var(--grad-cta);
  color: #fff;
  font-size: 18px;
  min-height: 58px;
  padding: 16px 40px;
  box-shadow: 0 8px 30px rgba(16,185,129,0.4);
  margin-top: 10px;
  width: 100%;
  max-width: 420px;
}

.btn-primary {
  background: var(--grad-main);
  color: #fff;
  margin-top: 20px;
}

.btn-cart {
  background: var(--grad-cta);
  color: #fff;
  width: 100%;
  min-height: 52px;
  font-size: 16px;
  box-shadow: 0 6px 20px rgba(16,185,129,0.35);
  margin: 12px 0 8px;
}

.btn-cart-featured {
  background: linear-gradient(135deg, #F59E0B, #EF4444);
  box-shadow: 0 6px 20px rgba(245,158,11,0.4);
}

.btn-final {
  background: var(--grad-cta);
  color: #fff;
  font-size: 20px;
  min-height: 62px;
  padding: 18px 48px;
  box-shadow: 0 10px 40px rgba(16,185,129,0.45);
  width: 100%;
  max-width: 480px;
}

.btn-popup {
  background: var(--grad-cta);
  color: #fff;
  width: 100%;
  min-height: 54px;
  font-size: 17px;
  margin-top: 16px;
  box-shadow: 0 8px 28px rgba(16,185,129,0.4);
}

/* Pulse animation */
@keyframes pulse {
  0%, 100% { box-shadow: 0 8px 30px rgba(16,185,129,0.4); }
  50% { box-shadow: 0 8px 50px rgba(16,185,129,0.75), 0 0 0 12px rgba(16,185,129,0.1); }
}
.pulse-btn { animation: pulse 2.2s infinite; }

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  40% { transform: translateY(-8px); }
  60% { transform: translateY(-4px); }
}
.bounce-btn { animation: bounce 1.8s infinite; }

/* ---------- NAVBAR ---------- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(11, 32, 39, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0,201,167,0.2);
  transition: all var(--transition);
  padding: 0;
}

.navbar.scrolled {
  padding: 0;
  background: rgba(11, 32, 39, 0.98);
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 24px;
  gap: 20px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 900;
  font-size: 22px;
  color: #fff;
}

.nav-logo img { border-radius: 8px; flex-shrink: 0; }

.logo-accent { color: var(--c-accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
}

.nav-link {
  color: rgba(255,255,255,0.85);
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 14px;
  transition: color var(--transition);
  white-space: nowrap;
}
.nav-link:hover { color: var(--c-accent); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 30px;
  padding: 4px;
  z-index: 1100;
}

.hamburger span {
  display: block;
  height: 3px;
  background: #fff;
  border-radius: 2px;
  transition: all 0.3s ease;
  transform-origin: center;
}

.hamburger.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ---------- HERO ---------- */
.hero {
  background: var(--grad-hero);
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 100px 0 60px;
  position: relative;
  overflow: hidden;
}

.hero-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.hero-particle {
  position: absolute;
  border-radius: 50%;
  background: rgba(0, 201, 167, 0.15);
  animation: float-particle linear infinite;
}

@keyframes float-particle {
  0% { transform: translateY(100vh) scale(0); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 0.5; }
  100% { transform: translateY(-100px) scale(1.2); opacity: 0; }
}

.hero-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 60px;
  position: relative;
  z-index: 1;
}

.hero-image-wrap {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-glow {
  position: absolute;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(0,201,167,0.35) 0%, transparent 70%);
  border-radius: 50%;
  animation: glow-pulse 3s ease-in-out infinite;
}

@keyframes glow-pulse {
  0%, 100% { transform: scale(1); opacity: 0.7; }
  50% { transform: scale(1.15); opacity: 1; }
}

.hero-bottle {
  position: relative;
  z-index: 2;
  filter: drop-shadow(0 30px 60px rgba(0,0,0,0.5));
  animation: bottle-float 4s ease-in-out infinite;
  max-height: 500px;
  width: auto;
}

@keyframes bottle-float {
  0%, 100% { transform: translateY(0) rotate(-2deg); }
  50% { transform: translateY(-18px) rotate(2deg); }
}

.hero-badge-float {
  position: absolute;
  top: 10%;
  right: 5%;
  background: var(--grad-gold);
  color: #fff;
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 13px;
  padding: 8px 16px;
  border-radius: 50px;
  z-index: 3;
  animation: badge-bounce 2s ease-in-out infinite;
  box-shadow: 0 4px 16px rgba(245,158,11,0.5);
}

@keyframes badge-bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.hero-content { color: #fff; }

.hero-eyebrow {
  display: inline-block;
  background: rgba(0,201,167,0.2);
  border: 1px solid rgba(0,201,167,0.4);
  color: var(--c-accent);
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 18px;
}

.hero-h1 {
  color: #fff;
  margin-bottom: 20px;
  font-size: clamp(28px, 4vw, 52px);
}

.hero-h1 .gradient-text {
  background: linear-gradient(135deg, #00C9A7, #F59E0B);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-p {
  color: rgba(255,255,255,0.88);
  font-size: 17px;
  margin-bottom: 14px;
  line-height: 1.8;
}

.hero-stars {
  color: #F59E0B;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 15px;
  margin-bottom: 10px;
}
.hero-stars span { color: rgba(255,255,255,0.7); margin-left: 6px; font-weight: 400; }

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 16px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 13px;
  color: rgba(255,255,255,0.8);
}

/* ---------- WHY CHOOSE ---------- */
.why-choose {
  padding: 80px 0;
  background: var(--c-white);
  text-align: center;
}

.why-choose .section-title { margin-bottom: 50px; }

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

.why-card {
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: default;
}

.why-card:hover {
  transform: translateY(-6px) scale(1.03) rotate(1deg);
  box-shadow: var(--shadow-lg);
}

.why-icon-wrap {
  width: 90px;
  height: 90px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--grad-main);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  box-shadow: 0 6px 20px rgba(15,110,132,0.3);
}

.why-icon-wrap img { width: 80px; height: 80px; object-fit: cover; border-radius: 50%; }

.why-badge {
  display: inline-block;
  background: var(--grad-main);
  color: #fff;
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 10px;
  letter-spacing: 1.5px;
  padding: 4px 12px;
  border-radius: 50px;
  margin-bottom: 10px;
}

.why-card h3 { font-size: 16px; margin-bottom: 10px; color: var(--c-dark); }
.why-card p { font-size: 14px; color: var(--c-muted); line-height: 1.7; }

/* ---------- WHAT IS ---------- */
.what-is {
  padding: 80px 0;
  background: var(--c-bg2);
}

.what-is-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 60px;
}

.what-is-content .section-title { margin-bottom: 20px; }
.what-is-content p { margin-bottom: 16px; color: var(--c-muted); font-size: 16px; line-height: 1.8; }

.what-is-image img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
}

/* ---------- HOW IT WORKS ---------- */
.how-it-works {
  padding: 80px 0;
  background: var(--c-white);
  text-align: center;
}

.how-it-works .section-title { margin-bottom: 10px; }

.accordion { max-width: 820px; margin: 0 auto; text-align: left; }

.acc-item {
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  background: var(--c-bg);
}

.acc-header {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 22px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 16px;
  color: var(--c-dark);
  width: 100%;
  text-align: left;
  min-height: 56px;
  transition: background var(--transition);
}

.acc-header:hover { background: rgba(15,110,132,0.05); }

.acc-item.active .acc-header { background: var(--grad-main); color: #fff; }

.acc-icon { font-size: 20px; flex-shrink: 0; }
.acc-arrow { margin-left: auto; font-size: 12px; transition: transform 0.3s ease; flex-shrink: 0; }
.acc-item.active .acc-arrow { transform: rotate(180deg); }

.acc-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  padding: 0 22px;
}

.acc-item.active .acc-body {
  max-height: 400px;
  padding: 18px 22px;
}

.acc-body p { font-size: 15px; color: var(--c-muted); line-height: 1.8; }

/* ---------- REVIEWS ---------- */
.reviews {
  padding: 80px 0;
  background: var(--c-bg2);
  text-align: center;
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 40px;
}

.review-card {
  background: var(--c-white);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: var(--shadow-sm);
  text-align: left;
  transition: transform var(--transition), box-shadow var(--transition);
  border: 1px solid var(--c-border);
}

.review-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }

.review-header { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }

.review-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--c-accent);
  flex-shrink: 0;
}

.review-header h4 { font-size: 16px; font-weight: 700; margin-bottom: 4px; }
.review-location { color: var(--c-muted); font-size: 13px; margin-bottom: 4px; }
.stars { font-size: 16px; }

.review-text { font-size: 15px; color: var(--c-muted); line-height: 1.75; }

.reviews-rating-img {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.reviews-rating-img p { color: var(--c-muted); font-size: 15px; }

/* ---------- PRICING ---------- */
.pricing {
  padding: 80px 0;
  background: var(--c-dark);
  text-align: center;
}

.pricing .section-title { color: #fff; }
.pricing .section-sub { color: rgba(255,255,255,0.7); }
.pricing .section-tag { background: var(--grad-gold); }

.countdown-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin: 0 auto 40px;
  flex-wrap: wrap;
}

.cd-label {
  color: rgba(255,255,255,0.8);
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 16px;
}

.cd-timer {
  display: flex;
  align-items: center;
  gap: 8px;
}

.cd-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(0,201,167,0.3);
  border-radius: var(--radius-sm);
  padding: 8px 18px;
  min-width: 70px;
}

.cd-num {
  font-family: 'Montserrat', sans-serif;
  font-weight: 900;
  font-size: 36px;
  color: var(--c-accent);
  line-height: 1;
}

.cd-unit {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 2px;
  color: rgba(255,255,255,0.6);
  margin-top: 2px;
}

.cd-sep {
  font-size: 30px;
  font-weight: 900;
  color: var(--c-accent);
  margin-bottom: 16px;
}

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

.price-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  padding: 28px 22px;
  text-align: center;
  position: relative;
  transition: transform var(--transition), box-shadow var(--transition);
}

.price-card:hover { transform: translateY(-4px); box-shadow: 0 20px 60px rgba(0,0,0,0.4); }

.price-featured {
  background: rgba(0,201,167,0.08);
  border-color: var(--c-accent);
  transform: scale(1.04);
  box-shadow: 0 20px 60px rgba(0,201,167,0.25);
}

.price-featured:hover { transform: scale(1.04) translateY(-4px); }

.price-popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--grad-gold);
  color: #fff;
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 11px;
  letter-spacing: 1.5px;
  padding: 6px 20px;
  border-radius: 50px;
  white-space: nowrap;
}

.price-label {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--c-accent);
  margin-bottom: 6px;
}

.price-qty {
  font-family: 'Montserrat', sans-serif;
  font-weight: 900;
  font-size: 22px;
  color: #fff;
  margin-bottom: 4px;
}

.price-supply {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 16px;
}

.price-card img { margin: 0 auto 16px; max-height: 180px; width: auto; }

.price-amount {
  font-family: 'Montserrat', sans-serif;
  font-size: 26px;
  color: #fff;
  margin-bottom: 4px;
}

.price-amount del { color: rgba(255,255,255,0.4); font-size: 18px; margin-right: 6px; }
.price-amount strong { color: var(--c-accent); font-size: 30px; }

.price-per { font-size: 13px; color: rgba(255,255,255,0.6); margin-bottom: 12px; }

.price-badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  margin-bottom: 8px;
}

.mini-badge {
  background: rgba(245,158,11,0.2);
  border: 1px solid var(--c-accent2);
  color: var(--c-accent2);
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 10px;
  letter-spacing: 0.5px;
  padding: 4px 10px;
  border-radius: 50px;
}

.payment-logos { margin: 0 auto; opacity: 0.7; }

.rating-under-pricing {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.rating-under-pricing p { color: rgba(255,255,255,0.7); font-size: 15px; }

/* ---------- BONUS ---------- */
.bonus {
  padding: 80px 0;
  background: var(--c-white);
  text-align: center;
}

.bonus-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  max-width: 900px;
  margin: 0 auto;
}

.bonus-card {
  background: var(--c-bg);
  border: 2px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  position: relative;
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
}

.bonus-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }

.bonus-ribbon {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--grad-main);
  color: #fff;
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 11px;
  letter-spacing: 1px;
  padding: 6px 20px;
  border-radius: 50px;
  white-space: nowrap;
}

.bonus-card img { margin: 10px auto 20px; max-height: 260px; width: auto; }
.bonus-card h3 { margin-bottom: 10px; }
.bonus-card p { color: var(--c-muted); font-size: 15px; }

/* ---------- INGREDIENTS ---------- */
.ingredients {
  padding: 80px 0;
  background: var(--c-bg2);
  text-align: center;
}

.ingredients-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.ing-card {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: left;
  transition: transform var(--transition), box-shadow var(--transition);
}

.ing-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }

.ing-icon { font-size: 32px; margin-bottom: 12px; }
.ing-card h3 { font-size: 16px; margin-bottom: 8px; color: var(--c-primary); }
.ing-card p { font-size: 14px; color: var(--c-muted); line-height: 1.75; }

/* ---------- SCIENCE ---------- */
.science {
  padding: 80px 0;
  background: var(--c-dark);
  color: #fff;
  text-align: center;
}

.science .section-title { color: #fff; }
.science .section-sub { color: rgba(255,255,255,0.7); }

.science-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 30px;
}

.sci-item {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(0,201,167,0.15);
  border-radius: var(--radius);
  padding: 28px 22px;
  text-align: left;
}

.sci-item h3 { font-size: 17px; color: var(--c-accent); margin-bottom: 12px; }
.sci-item p { font-size: 14px; color: rgba(255,255,255,0.75); line-height: 1.8; }

.science-disclaimer {
  max-width: 700px;
  margin: 0 auto;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-sm);
  padding: 16px 24px;
}

.science-disclaimer p { font-size: 13px; color: rgba(255,255,255,0.5); font-style: italic; }

/* ---------- GUARANTEE ---------- */
.guarantee {
  padding: 80px 0;
  background: var(--c-white);
}

.guarantee-container {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  align-items: center;
  gap: 60px;
}

.guarantee-image img {
  border-radius: 50%;
  box-shadow: 0 20px 60px rgba(15,110,132,0.3);
  border: 6px solid var(--c-accent);
  width: 100%;
  max-width: 320px;
  margin: 0 auto;
}

.guarantee-points { display: flex; flex-direction: column; gap: 24px; margin-top: 24px; }

.g-point {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding: 22px;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  border-left: 4px solid var(--c-accent);
}

.g-icon {
  font-size: 28px;
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,201,167,0.1);
  border-radius: 12px;
}

.g-point h3 { font-size: 17px; margin-bottom: 6px; }
.g-point p { font-size: 14px; color: var(--c-muted); line-height: 1.75; }

/* ---------- BENEFITS ---------- */
.benefits {
  padding: 80px 0;
  background: var(--c-bg2);
  text-align: center;
}

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

.benefit-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 22px;
  transition: transform var(--transition), box-shadow var(--transition);
}

.benefit-item:hover { transform: translateX(4px); box-shadow: var(--shadow-sm); }

.benefit-check {
  font-size: 22px;
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  background: rgba(16,185,129,0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.benefit-item h3 { font-size: 16px; margin-bottom: 6px; }
.benefit-item p { font-size: 14px; color: var(--c-muted); line-height: 1.7; }

/* ---------- FAQ ---------- */
.faq {
  padding: 80px 0;
  background: var(--c-white);
  text-align: center;
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  text-align: left;
}

.faq-item {
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  background: var(--c-bg);
}

.faq-q {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 18px 22px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 16px;
  color: var(--c-dark);
  text-align: left;
  min-height: 56px;
  transition: background var(--transition);
}

.faq-q::after {
  content: '+';
  font-size: 22px;
  color: var(--c-primary);
  flex-shrink: 0;
  margin-left: 12px;
  transition: transform 0.3s ease;
}

.faq-item.open .faq-q {
  background: var(--grad-main);
  color: #fff;
}

.faq-item.open .faq-q::after { content: '−'; color: #fff; transform: rotate(0deg); }

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  padding: 0 22px;
}

.faq-item.open .faq-a {
  max-height: 400px;
  padding: 18px 22px;
}

.faq-a p { font-size: 15px; color: var(--c-muted); line-height: 1.8; }
.faq-link { color: var(--c-primary); font-weight: 700; text-decoration: underline; }

/* ---------- FINAL CTA ---------- */
.final-cta {
  background: var(--grad-hero);
  padding: 90px 0;
  position: relative;
  overflow: hidden;
  text-align: center;
}

.final-cta-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.final-cta-container {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  align-items: center;
  gap: 50px;
  position: relative;
  z-index: 1;
}

.final-cta-image img {
  margin: 0 auto;
  filter: drop-shadow(0 20px 50px rgba(0,0,0,0.5));
  animation: bottle-float 4s ease-in-out infinite;
}

.final-cta-content { color: #fff; text-align: left; }

.final-h2 {
  font-size: clamp(22px, 3.5vw, 38px);
  color: #fff;
  margin-bottom: 20px;
}

.final-h2 .gradient-text {
  background: linear-gradient(135deg, #00C9A7, #F59E0B);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.final-pricing {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.final-old { color: rgba(255,255,255,0.5); font-size: 16px; }
.final-new { color: var(--c-accent); font-family: 'Montserrat', sans-serif; font-weight: 700; font-size: 26px; }

.final-benefits {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
}

.final-benefits li {
  color: rgba(255,255,255,0.85);
  font-size: 15px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
}

.final-note { color: rgba(255,255,255,0.6); font-size: 13px; margin-top: 12px; }

/* ---------- FOOTER ---------- */
.footer {
  background: #050E10;
  color: rgba(255,255,255,0.7);
  padding: 60px 0 30px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 30px;
}

.footer-brand p { font-size: 14px; line-height: 1.7; margin: 14px 0 20px; max-width: 320px; }

.footer-logo { color: #fff; font-size: 20px; }

.social-links { display: flex; gap: 12px; }
.social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.08);
  border-radius: 10px;
  font-size: 20px;
  transition: background var(--transition);
}
.social-icon:hover { background: rgba(0,201,167,0.25); }

.footer-links-col h4 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 15px;
  color: #fff;
  margin-bottom: 16px;
}

.footer-links-col a {
  display: block;
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 10px;
  transition: color var(--transition);
}
.footer-links-col a:hover { color: var(--c-accent); }

.footer-legal-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 20px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  margin-bottom: 20px;
}

.legal-link {
  color: rgba(255,255,255,0.55);
  font-size: 13px;
  transition: color var(--transition);
}
.legal-link:hover { color: var(--c-accent); }

.link-separator { color: rgba(255,255,255,0.2); }

.footer-disclaimer {
  max-width: 900px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  margin-bottom: 20px;
}
.footer-disclaimer p { font-size: 12px; line-height: 1.8; color: rgba(255,255,255,0.4); }

.footer-copy { text-align: center; font-size: 13px; color: rgba(255,255,255,0.35); }
.footer-copy a { color: var(--c-accent); }

/* ---------- SCROLL TO TOP ---------- */
.scroll-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 56px;
  height: 56px;
  background: var(--grad-main);
  color: #fff;
  border-radius: 50%;
  font-size: 20px;
  font-weight: 700;
  z-index: 900;
  box-shadow: 0 6px 20px rgba(15,110,132,0.4);
  opacity: 0;
  pointer-events: none;
  transform: translateY(20px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.scroll-top.visible { opacity: 1; pointer-events: all; transform: translateY(0); }
.scroll-top:hover { transform: translateY(-3px); box-shadow: 0 10px 30px rgba(15,110,132,0.5); }

/* ---------- PURCHASE NOTIFICATION ---------- */
.purchase-notif {
  position: fixed;
  bottom: 28px;
  left: 20px;
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 800;
  box-shadow: var(--shadow-md);
  max-width: 280px;
  opacity: 0;
  transform: translateX(-110%);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.purchase-notif.show { opacity: 1; transform: translateX(0); }

.purchase-notif img { border-radius: 8px; flex-shrink: 0; }

.notif-text { font-size: 13px; line-height: 1.5; color: var(--c-dark); flex: 1; }
.notif-text strong { color: var(--c-primary); }

.notif-close {
  color: var(--c-muted);
  font-size: 14px;
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(0,0,0,0.06);
  transition: background var(--transition);
}
.notif-close:hover { background: rgba(0,0,0,0.12); }

/* ---------- EXIT POPUP ---------- */
.popup-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.popup-overlay.show { opacity: 1; pointer-events: all; }

.popup-box {
  background: var(--c-white);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  max-width: 440px;
  width: 100%;
  position: relative;
  text-align: center;
  transform: scale(0.9);
  transition: transform 0.3s ease;
}

.popup-overlay.show .popup-box { transform: scale(1); }

.popup-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 36px;
  height: 36px;
  background: rgba(0,0,0,0.08);
  border-radius: 50%;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}
.popup-close:hover { background: rgba(0,0,0,0.16); }

.popup-tag {
  display: inline-block;
  background: var(--c-danger);
  color: #fff;
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 13px;
  letter-spacing: 1.5px;
  padding: 6px 18px;
  border-radius: 50px;
  margin-bottom: 14px;
}

.popup-box h3 { font-size: 24px; margin-bottom: 12px; color: var(--c-dark); }
.popup-box p { font-size: 15px; color: var(--c-muted); line-height: 1.7; }

.popup-price {
  font-family: 'Montserrat', sans-serif;
  font-size: 26px;
  font-weight: 900;
  color: var(--c-primary);
  margin: 14px 0;
}

.popup-price del { color: rgba(0,0,0,0.3); font-size: 18px; }
.popup-price strong { color: var(--c-cta); }

.popup-skip { margin-top: 14px; }
.popup-skip a { color: var(--c-muted); font-size: 13px; text-decoration: underline; }

/* ---------- SCROLL ANIMATIONS ---------- */
.fade-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.6s ease calc(var(--delay, 0s)), transform 0.6s ease calc(var(--delay, 0s));
}

.fade-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible, .fade-left.visible, .fade-right.visible {
  opacity: 1;
  transform: none;
}

/* ---------- PRICING (SECOND) ---------- */
.pricing-second { background: #0B2027; }

/* =====================================================
   RESPONSIVE — MOBILE FIRST
   ===================================================== */

/* ---- ≤575px phones ---- */
@media (max-width: 575px) {
  .hero-container { grid-template-columns: 1fr; gap: 30px; text-align: center; padding-top: 20px; }
  .hero-image-wrap { order: 1; max-width: 280px; margin: 0 auto; }
  .hero-bottle { max-height: 280px; }
  .hero-glow { width: 220px; height: 220px; }
  .hero-content { order: 2; }
  .hero-h1 { font-size: 26px; }
  .hero-p { font-size: 15px; }
  .hero-trust { justify-content: center; font-size: 12px; gap: 10px; }
  .btn-hero { font-size: 15px; max-width: 100%; }

  .why-grid { grid-template-columns: 1fr; }

  .what-is-container { grid-template-columns: 1fr; }
  .what-is-image { order: -1; }

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

  .pricing-grid { grid-template-columns: 1fr; }
  .price-featured { transform: scale(1); order: -1; }
  .price-featured:hover { transform: translateY(-4px); }

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

  .ingredients-grid { grid-template-columns: 1fr; }

  .science-grid { grid-template-columns: 1fr; }

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

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

  .final-cta-container { grid-template-columns: 1fr; }
  .final-cta-image { order: -1; }
  .final-cta-content { text-align: center; }
  .final-pricing { justify-content: center; }
  .btn-final { max-width: 100%; font-size: 16px; }

  .footer-top { grid-template-columns: 1fr; text-align: center; }
  .footer-brand p { max-width: 100%; }
  .social-links { justify-content: center; }
  .footer-legal-links { justify-content: center; }
  .footer-copy { font-size: 12px; }

  .cd-num { font-size: 28px; }
  .cd-block { min-width: 56px; padding: 6px 12px; }

  .scroll-top { bottom: 20px; right: 16px; width: 48px; height: 48px; font-size: 18px; }

  .purchase-notif { max-width: calc(100vw - 32px); bottom: 16px; left: 16px; }

  .nav-links { display: none; flex-direction: column; position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(11,32,39,0.98); z-index: 999; justify-content: center; align-items: center; gap: 32px; padding: 30px; }
  .nav-links.open { display: flex; }
  .hamburger { display: flex; }
  .nav-link { font-size: 18px; }
  .btn-nav { font-size: 16px; min-height: 52px; padding: 14px 36px; }
}

/* ---- 576px – 767px large phones ---- */
@media (min-width: 576px) and (max-width: 767px) {
  .hero-container { grid-template-columns: 1fr; gap: 30px; text-align: center; }
  .hero-image-wrap { order: 1; max-width: 320px; margin: 0 auto; }
  .hero-content { order: 2; }

  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .ingredients-grid { grid-template-columns: repeat(2, 1fr); }
  .science-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .price-featured { transform: scale(1); }
  .benefits-grid { grid-template-columns: 1fr; }

  .what-is-container { grid-template-columns: 1fr; }
  .guarantee-container { grid-template-columns: 1fr; text-align: center; }
  .guarantee-image { order: -1; }

  .final-cta-container { grid-template-columns: 1fr; text-align: center; }
  .final-cta-image { order: -1; }
  .final-pricing { justify-content: center; }

  .footer-top { grid-template-columns: 1fr 1fr; gap: 30px; }
  .footer-brand { grid-column: 1/-1; text-align: center; }
  .social-links { justify-content: center; }

  .nav-links { display: none; flex-direction: column; position: fixed; inset: 0; background: rgba(11,32,39,0.98); z-index: 999; justify-content: center; align-items: center; gap: 28px; }
  .nav-links.open { display: flex; }
  .hamburger { display: flex; }
}

/* ---- 768px tablets ---- */
@media (min-width: 768px) and (max-width: 1023px) {
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .ingredients-grid { grid-template-columns: repeat(2, 1fr); }
  .science-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .price-featured { grid-column: 1/-1; max-width: 360px; margin: 0 auto; }

  .what-is-container { gap: 30px; }
  .guarantee-container { gap: 30px; }
  .hero-container { gap: 30px; }
  .final-cta-container { gap: 30px; }

  .nav-links { display: none; flex-direction: column; position: fixed; inset: 0; background: rgba(11,32,39,0.98); z-index: 999; justify-content: center; align-items: center; gap: 28px; }
  .nav-links.open { display: flex; }
  .hamburger { display: flex; }
}

/* ---- 1024px small laptops ---- */
@media (min-width: 1024px) {
  .hamburger { display: none; }
  .nav-links { display: flex !important; position: static; background: none; padding: 0; flex-direction: row; gap: 30px; }
  .what-is-container { gap: 60px; }
  .guarantee-container { gap: 60px; }
}

/* ---- Reduced Motion ---- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .fade-up, .fade-left, .fade-right { opacity: 1; transform: none; }
  .hero-bottle, .hero-glow, .hero-badge-float { animation: none; }
  .pulse-btn, .bounce-btn { animation: none; }
}