/* ===========================
   BioSteady — styles.css
   Medical Professional Theme
   Primary: #1E40AF | Accent: #10B981
=========================== */

:root {
  --primary: #1a3c8f;
  --primary-dark: #0f2460;
  --primary-light: #3b82f6;
  --accent: #10b981;
  --accent-dark: #059669;
  --gold: #f59e0b;
  --danger: #ef4444;
  --text: #1f2937;
  --text-light: #6b7280;
  --bg: #f8fafc;
  --white: #ffffff;
  --card-bg: #ffffff;
  --border: #e5e7eb;
  --shadow: 0 4px 24px rgba(26,60,143,0.10);
  --shadow-lg: 0 8px 40px rgba(26,60,143,0.18);
  --radius: 16px;
  --radius-sm: 8px;
  --font-head: 'Montserrat', sans-serif;
  --font-body: 'Open Sans', sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
* { -webkit-tap-highlight-color: transparent; }
body { font-family: var(--font-body); color: var(--text); background: var(--bg); overflow-x: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }

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

/* BUTTONS */
.btn-primary {
  display: inline-flex; flex-direction: column; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: var(--white); font-family: var(--font-head); font-weight: 700; font-size: 1.05rem;
  padding: 14px 32px; border-radius: 50px; border: none; cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s; box-shadow: 0 4px 20px rgba(16,185,129,0.35);
  min-height: 52px; text-align: center; line-height: 1.3;
}
.btn-primary:hover { transform: scale(1.05); box-shadow: 0 8px 32px rgba(16,185,129,0.45); }
.btn-primary:active { transform: scale(0.98); }
.btn-primary .btn-sub { font-size: 0.72rem; font-weight: 400; opacity: 0.85; margin-top: 2px; font-family: var(--font-body); }
.btn-mega { font-size: 1.2rem; padding: 18px 40px; min-height: 64px; }
.mt-center { display: flex; margin: 32px auto 0; width: fit-content; }

/* SECTION COMMON */
section { padding: 72px 0; }
.section-title { font-family: var(--font-head); font-weight: 800; font-size: clamp(1.5rem, 4vw, 2.4rem); color: var(--primary-dark); text-align: center; margin-bottom: 12px; }
.section-sub { text-align: center; color: var(--text-light); font-size: 1.05rem; margin-bottom: 48px; }

/* FADE ANIMATION */
.fade-up { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* ============================
   NAVBAR
============================ */
.navbar {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
  background: rgba(255,255,255,0.97); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.3s;
}
.navbar.scrolled { box-shadow: var(--shadow-lg); }
.nav-container { display: flex; align-items: center; justify-content: space-between; padding: 14px 24px; max-width: 1200px; margin: 0 auto; }
.nav-logo { display: flex; align-items: center; gap: 10px; font-family: var(--font-head); font-weight: 800; font-size: 1.3rem; color: var(--primary); }
.logo-img { width: 40px; height: 40px; object-fit: contain; border-radius: 8px; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { font-family: var(--font-head); font-weight: 600; font-size: 0.92rem; color: var(--text); transition: color 0.2s; }
.nav-links a:hover { color: var(--primary); }
.nav-cta { background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: var(--white) !important; padding: 10px 22px; border-radius: 50px; font-size: 0.9rem !important; min-height: 44px; display: flex; align-items: center; }
.nav-cta:hover { transform: scale(1.05); box-shadow: 0 4px 16px rgba(26,60,143,0.3); }
.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; min-height: 44px; min-width: 44px; justify-content: center; align-items: center; }
.hamburger span { width: 24px; height: 2.5px; background: var(--primary); border-radius: 2px; transition: transform 0.3s, opacity 0.3s; display: block; }
.hamburger.open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ============================
   HERO
============================ */
.hero { padding-top: 90px; min-height: 100vh; display: flex; align-items: center; background: linear-gradient(135deg, #e8f0fe 0%, #f0fdf4 50%, #eff6ff 100%); position: relative; overflow: hidden; }
.hero-bg-anim { position: absolute; inset: 0; background: radial-gradient(circle at 20% 80%, rgba(16,185,129,0.07) 0%, transparent 50%), radial-gradient(circle at 80% 20%, rgba(26,60,143,0.07) 0%, transparent 50%); pointer-events: none; }
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; padding: 56px 20px; }
.hero-bottle-wrapper { position: relative; display: flex; justify-content: center; align-items: center; }
.hero-bottle { max-height: 520px; width: auto; max-width: 100%; filter: drop-shadow(0 20px 60px rgba(26,60,143,0.25)); animation: heroFloat 3s ease-in-out infinite; }
@keyframes heroFloat { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-18px)} }
.hero-glow { position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); width: 80%; height: 40px; background: radial-gradient(ellipse, rgba(16,185,129,0.25) 0%, transparent 70%); border-radius: 50%; filter: blur(12px); }
.floating-badge { position: absolute; background: var(--white); border: 1.5px solid var(--border); border-radius: 30px; padding: 7px 14px; font-family: var(--font-head); font-weight: 700; font-size: 0.78rem; color: var(--primary); box-shadow: var(--shadow); white-space: nowrap; }
.badge-1 { top: 10%; left: -5%; animation: badgeFloat 3.5s ease-in-out infinite; }
.badge-2 { top: 50%; right: -8%; animation: badgeFloat 3s ease-in-out infinite 0.5s; }
.badge-3 { bottom: 10%; left: -5%; animation: badgeFloat 4s ease-in-out infinite 1s; }
@keyframes badgeFloat { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-8px)} }
.hero-tag { display: inline-block; background: linear-gradient(135deg, var(--gold), #fbbf24); color: #7c2d12; font-family: var(--font-head); font-weight: 700; font-size: 0.82rem; padding: 6px 16px; border-radius: 30px; margin-bottom: 18px; }
.hero-h1 { font-family: var(--font-head); font-weight: 900; font-size: clamp(1.6rem, 3.5vw, 2.8rem); color: var(--primary-dark); line-height: 1.2; margin-bottom: 20px; }
.hero-h1 .highlight { color: var(--accent); position: relative; }
.hero-h1 .highlight::after { content: ''; position: absolute; bottom: -2px; left: 0; width: 100%; height: 3px; background: var(--accent); border-radius: 2px; }
.hero-desc { font-size: 1rem; line-height: 1.75; color: var(--text); margin-bottom: 14px; }
.hero-price-row { display: flex; align-items: center; gap: 12px; margin: 24px 0; flex-wrap: wrap; }
.price-old { font-size: 1.2rem; color: var(--text-light); text-decoration: line-through; font-family: var(--font-head); }
.price-new { font-family: var(--font-head); font-weight: 900; font-size: 2rem; color: var(--accent); }
.price-new small { font-size: 1rem; font-weight: 600; }
.price-save { background: var(--danger); color: var(--white); font-family: var(--font-head); font-weight: 700; font-size: 0.82rem; padding: 5px 12px; border-radius: 20px; }
.hero-cta { font-size: 1.1rem; padding: 16px 36px; margin-bottom: 20px; width: 100%; max-width: 380px; }
.hero-trust { display: flex; gap: 20px; flex-wrap: wrap; font-size: 0.85rem; color: var(--text-light); font-weight: 600; }

/* ============================
   WHY CHOOSE US
============================ */
.why-us { background: var(--white); }
.badges-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.badge-card { background: var(--bg); border: 1.5px solid var(--border); border-radius: var(--radius); padding: 32px 24px; text-align: center; transition: transform 0.3s, box-shadow 0.3s; }
.badge-card:hover { transform: scale(1.05) rotate(1deg); box-shadow: var(--shadow-lg); }
.badge-card img { width: 72px; height: 72px; object-fit: contain; margin: 0 auto 16px; }
.badge-card h3 { font-family: var(--font-head); font-weight: 700; font-size: 1rem; color: var(--primary); margin-bottom: 10px; }
.badge-card p { font-size: 0.9rem; line-height: 1.65; color: var(--text-light); }

/* ============================
   WHAT IS
============================ */
.what-is { background: linear-gradient(135deg, #eff6ff 0%, #f0fdf4 100%); }
.what-is-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.what-is-img img { border-radius: var(--radius); box-shadow: var(--shadow-lg); }
.what-is-content h2 { font-family: var(--font-head); font-weight: 800; font-size: clamp(1.4rem, 3vw, 2rem); color: var(--primary-dark); margin-bottom: 18px; }
.what-is-content p { font-size: 1rem; line-height: 1.75; color: var(--text); margin-bottom: 16px; }
.what-is-content .btn-primary { margin-top: 12px; }

/* ============================
   HOW IT WORKS / FAQ ACCORDION
============================ */
.how-works { background: var(--white); }
.accordion-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.acc-item { border: 1.5px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; }
.acc-header { width: 100%; background: var(--bg); border: none; padding: 18px 24px; display: flex; justify-content: space-between; align-items: center; font-family: var(--font-head); font-weight: 700; font-size: 1rem; color: var(--primary-dark); cursor: pointer; text-align: left; min-height: 56px; transition: background 0.2s; gap: 12px; }
.acc-header:hover { background: #eff6ff; }
.acc-icon { font-size: 1.3rem; color: var(--primary); transition: transform 0.3s; flex-shrink: 0; }
.acc-header.open .acc-icon { transform: rotate(45deg); }
.acc-body { max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s; }
.acc-body.open { max-height: 400px; }
.acc-body p { padding: 16px 24px; font-size: 0.97rem; line-height: 1.75; color: var(--text); }

/* ============================
   REVIEWS
============================ */
.reviews { background: linear-gradient(135deg, #f0fdf4 0%, #eff6ff 100%); }
.reviews-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.review-card { background: var(--white); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); border: 1.5px solid var(--border); }
.review-header { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.reviewer-img { width: 56px; height: 56px; border-radius: 50%; object-fit: cover; border: 3px solid var(--accent); }
.reviewer-loc { font-size: 0.82rem; color: var(--text-light); display: block; margin: 2px 0; }
.stars { font-size: 1rem; }
.review-card p { font-size: 0.95rem; line-height: 1.7; color: var(--text); }

/* ============================
   PRICING
============================ */
.pricing { background: linear-gradient(135deg, #1a3c8f 0%, #0f2460 100%); color: var(--white); }
.pricing .section-title { color: var(--white); }
.pricing .section-sub { color: rgba(255,255,255,0.75); }
.countdown-box { display: flex; align-items: center; justify-content: center; gap: 20px; background: rgba(255,255,255,0.1); border-radius: var(--radius); padding: 18px 32px; margin-bottom: 48px; flex-wrap: wrap; gap: 16px; }
.countdown-label { font-family: var(--font-head); font-weight: 700; font-size: 1rem; color: var(--gold); }
.timer { display: flex; align-items: center; gap: 8px; }
.time-unit { display: flex; flex-direction: column; align-items: center; background: rgba(255,255,255,0.15); border-radius: 10px; padding: 10px 18px; }
.time-unit span { font-family: var(--font-head); font-weight: 900; font-size: 2.2rem; color: var(--white); line-height: 1; }
.time-unit small { font-size: 0.65rem; color: rgba(255,255,255,0.7); font-weight: 600; margin-top: 3px; }
.time-sep { font-family: var(--font-head); font-weight: 900; font-size: 2rem; color: var(--gold); }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.price-card { background: var(--white); border-radius: var(--radius); padding: 32px 24px; text-align: center; color: var(--text); position: relative; box-shadow: var(--shadow-lg); transition: transform 0.3s; }
.price-card:hover { transform: translateY(-6px); }
.price-card.popular { border: 3px solid var(--accent); transform: scale(1.04); }
.price-card.popular:hover { transform: scale(1.04) translateY(-6px); }
.popular-badge { position: absolute; top: -16px; left: 50%; transform: translateX(-50%); background: linear-gradient(135deg, var(--accent), var(--accent-dark)); color: var(--white); font-family: var(--font-head); font-weight: 700; font-size: 0.78rem; padding: 6px 18px; border-radius: 20px; white-space: nowrap; }
.price-label { font-family: var(--font-head); font-weight: 800; font-size: 0.85rem; color: var(--primary); letter-spacing: 2px; margin-bottom: 4px; }
.price-bottles { font-family: var(--font-head); font-weight: 900; font-size: 1.6rem; color: var(--primary-dark); }
.price-supply { font-size: 0.85rem; color: var(--text-light); margin-bottom: 16px; }
.price-img { max-height: 160px; width: auto; margin: 0 auto 16px; }
.price-amount { display: flex; align-items: center; justify-content: center; gap: 10px; }
.old-price { font-size: 1.1rem; color: var(--text-light); text-decoration: line-through; font-family: var(--font-head); }
.new-price { font-family: var(--font-head); font-weight: 900; font-size: 2.2rem; color: var(--accent); }
.price-per { font-size: 0.85rem; color: var(--text-light); margin-bottom: 12px; }
.bonus-badges { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.bonus-badges span { background: linear-gradient(135deg, #fef3c7, #fde68a); color: #92400e; font-family: var(--font-head); font-weight: 700; font-size: 0.78rem; padding: 5px 12px; border-radius: 20px; }
.price-btn { width: 100%; font-size: 1rem; margin-bottom: 12px; }
.atc-img { width: 28px; height: 28px; object-fit: contain; display: none; }
.cards-img { height: 28px; width: auto; margin: 0 auto; object-fit: contain; }
.star-rating-img { text-align: center; margin-top: 36px; }
.star-rating-img img { height: 40px; width: auto; margin: 0 auto; }

/* ============================
   BONUSES
============================ */
.bonuses { background: var(--white); }
.bonus-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.bonus-card { display: flex; gap: 24px; align-items: flex-start; background: var(--bg); border: 1.5px solid var(--border); border-radius: var(--radius); padding: 32px; }
.bonus-card img { width: 120px; height: 120px; object-fit: cover; border-radius: var(--radius-sm); flex-shrink: 0; }
.bonus-number { font-family: var(--font-head); font-weight: 800; font-size: 0.8rem; color: var(--accent); letter-spacing: 2px; margin-bottom: 6px; }
.bonus-info h3 { font-family: var(--font-head); font-weight: 700; font-size: 1.1rem; color: var(--primary-dark); margin-bottom: 10px; }
.bonus-info p { font-size: 0.92rem; line-height: 1.65; color: var(--text-light); margin-bottom: 10px; }
.bonus-value { font-family: var(--font-head); font-weight: 700; font-size: 0.9rem; color: var(--accent); }
.value-old { text-decoration: line-through; color: var(--text-light); font-weight: 400; }

/* ============================
   INGREDIENTS
============================ */
.ingredients { background: linear-gradient(135deg, #eff6ff 0%, #f0fdf4 100%); }
.ing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.ing-card { background: var(--white); border-radius: var(--radius); padding: 24px; border: 1.5px solid var(--border); transition: transform 0.3s, box-shadow 0.3s; }
.ing-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.ing-icon { font-size: 2rem; margin-bottom: 12px; }
.ing-card h3 { font-family: var(--font-head); font-weight: 700; font-size: 1rem; color: var(--primary-dark); margin-bottom: 8px; }
.ing-card p { font-size: 0.9rem; line-height: 1.65; color: var(--text-light); }

/* ============================
   SCIENCE
============================ */
.science { background: var(--white); }
.science-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 24px; }
.sci-card { background: var(--bg); border-radius: var(--radius); padding: 24px; border-left: 4px solid var(--primary); }
.sci-card h3 { font-family: var(--font-head); font-weight: 700; font-size: 1rem; color: var(--primary-dark); margin-bottom: 10px; }
.sci-card p { font-size: 0.9rem; line-height: 1.65; color: var(--text-light); }
.sci-disclaimer { font-size: 0.82rem; color: var(--text-light); text-align: center; padding: 16px; background: var(--bg); border-radius: var(--radius-sm); border: 1px solid var(--border); }

/* ============================
   GUARANTEE
============================ */
.guarantee { background: linear-gradient(135deg, #f0fdf4 0%, #eff6ff 100%); }
.guarantee-inner { display: grid; grid-template-columns: 1fr 2fr; gap: 56px; align-items: center; }
.guarantee-img img { border-radius: var(--radius); box-shadow: var(--shadow-lg); max-width: 280px; margin: 0 auto; }
.guarantee-content h2 { font-family: var(--font-head); font-weight: 800; font-size: clamp(1.4rem, 3vw, 2rem); color: var(--primary-dark); margin-bottom: 14px; }
.guarantee-content > p { font-size: 0.97rem; line-height: 1.7; color: var(--text-light); margin-bottom: 24px; }
.guarantee-point { display: flex; gap: 16px; margin-bottom: 20px; align-items: flex-start; }
.g-icon { font-size: 1.8rem; flex-shrink: 0; }
.guarantee-point h4 { font-family: var(--font-head); font-weight: 700; font-size: 1rem; color: var(--primary-dark); margin-bottom: 6px; }
.guarantee-point p { font-size: 0.9rem; line-height: 1.65; color: var(--text-light); }

/* ============================
   BENEFITS
============================ */
.benefits { background: var(--white); }
.benefits-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; max-width: 900px; margin: 0 auto; }
.benefit-item { display: flex; gap: 16px; align-items: flex-start; background: var(--bg); border-radius: var(--radius-sm); padding: 20px; border: 1.5px solid var(--border); transition: transform 0.2s; }
.benefit-item:hover { transform: translateX(4px); }
.b-check { font-size: 1.3rem; flex-shrink: 0; }
.benefit-item h4 { font-family: var(--font-head); font-weight: 700; font-size: 0.97rem; color: var(--primary-dark); margin-bottom: 4px; }
.benefit-item p { font-size: 0.88rem; line-height: 1.6; color: var(--text-light); }

/* ============================
   FINAL CTA
============================ */
.final-cta { background: linear-gradient(135deg, #0f2460 0%, #1a3c8f 50%, #10b981 150%); color: var(--white); position: relative; overflow: hidden; padding: 80px 0; }
.final-cta-bg { position: absolute; inset: 0; background: radial-gradient(circle at 30% 50%, rgba(16,185,129,0.15) 0%, transparent 60%), radial-gradient(circle at 80% 30%, rgba(255,255,255,0.05) 0%, transparent 40%); pointer-events: none; }
.final-cta-inner { display: grid; grid-template-columns: 1fr 1.4fr; gap: 56px; align-items: center; position: relative; }
.final-img img { filter: drop-shadow(0 20px 60px rgba(0,0,0,0.3)); animation: heroFloat 3.5s ease-in-out infinite; border-radius: var(--radius); }
.final-badge { display: inline-block; background: var(--gold); color: #7c2d12; font-family: var(--font-head); font-weight: 700; font-size: 0.78rem; padding: 6px 16px; border-radius: 20px; margin-bottom: 16px; letter-spacing: 1px; }
.final-content h2 { font-family: var(--font-head); font-weight: 900; font-size: clamp(1.5rem, 3vw, 2.2rem); color: var(--white); margin-bottom: 16px; line-height: 1.25; }
.final-content p { font-size: 1rem; line-height: 1.75; color: rgba(255,255,255,0.85); margin-bottom: 24px; }
.final-price { display: flex; flex-direction: column; gap: 6px; margin-bottom: 24px; }
.reg-price { font-size: 1rem; color: rgba(255,255,255,0.65); font-family: var(--font-head); }
.special-price { font-family: var(--font-head); font-weight: 900; font-size: 1.8rem; color: var(--gold); }
.final-trust { display: flex; gap: 20px; flex-wrap: wrap; margin-top: 16px; font-size: 0.82rem; color: rgba(255,255,255,0.7); font-weight: 600; }

/* ============================
   FOOTER
============================ */
.footer { background: #0f1f4b; color: rgba(255,255,255,0.75); padding: 48px 0 24px; }
.footer-top { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 24px; margin-bottom: 28px; }
.footer-brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-head); font-weight: 800; font-size: 1.2rem; color: var(--white); }
.footer-logo { width: 36px; height: 36px; object-fit: contain; border-radius: 8px; }
.footer-links { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-links a { font-size: 0.88rem; color: rgba(255,255,255,0.65); transition: color 0.2s; font-weight: 500; }
.footer-links a:hover { color: var(--accent); }
.footer-social { display: flex; gap: 14px; }
.footer-social a { width: 40px; height: 40px; background: rgba(255,255,255,0.1); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: var(--white); transition: background 0.2s; }
.footer-social a svg { width: 18px; height: 18px; }
.footer-social a:hover { background: var(--primary-light); }
.footer-legal-links { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 24px; padding: 16px 0; border-top: 1px solid rgba(255,255,255,0.1); border-bottom: 1px solid rgba(255,255,255,0.1); }
.legal-link { font-size: 0.85rem; color: rgba(255,255,255,0.55); transition: color 0.2s; }
.legal-link:hover { color: var(--accent); }
.link-separator { color: rgba(255,255,255,0.25); }
.footer-disclaimer p { font-size: 0.8rem; line-height: 1.65; color: rgba(255,255,255,0.45); margin-bottom: 10px; }
.footer-disclaimer a { color: rgba(255,255,255,0.55); text-decoration: underline; }

/* ============================
   SCROLL TO TOP
============================ */
.scroll-top { position: fixed; bottom: 24px; right: 24px; width: 56px; height: 56px; background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: var(--white); border: none; border-radius: 50%; font-size: 1.3rem; cursor: pointer; box-shadow: var(--shadow-lg); display: none; align-items: center; justify-content: center; z-index: 999; transition: transform 0.2s; }
.scroll-top.visible { display: flex; }
.scroll-top:hover { transform: scale(1.1); }

/* ============================
   POPUP
============================ */
.popup-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.6); z-index: 2000; display: none; align-items: center; justify-content: center; padding: 20px; }
.popup-overlay.show { display: flex; }
.popup-box { background: var(--white); border-radius: var(--radius); padding: 40px 36px; max-width: 460px; width: 100%; position: relative; text-align: center; box-shadow: 0 20px 60px rgba(0,0,0,0.3); animation: popupIn 0.4s ease; }
@keyframes popupIn { from{transform:scale(0.8);opacity:0} to{transform:scale(1);opacity:1} }
.popup-close { position: absolute; top: 14px; right: 14px; background: none; border: none; font-size: 1.2rem; cursor: pointer; color: var(--text-light); min-width: 44px; min-height: 44px; display: flex; align-items: center; justify-content: center; }
.popup-badge { background: var(--danger); color: var(--white); font-family: var(--font-head); font-weight: 700; font-size: 0.78rem; padding: 5px 14px; border-radius: 20px; display: inline-block; margin-bottom: 12px; }
.popup-box h3 { font-family: var(--font-head); font-weight: 800; font-size: 1.6rem; color: var(--primary-dark); margin-bottom: 12px; }
.popup-box p { font-size: 1rem; line-height: 1.65; color: var(--text); margin-bottom: 20px; }
.popup-cta { width: 100%; font-size: 1rem; margin-bottom: 10px; }
.popup-skip { display: block; font-size: 0.85rem; color: var(--primary-light); text-decoration: underline; }

/* NOTIFICATION POPUP */
.notif-popup { position: fixed; bottom: 24px; left: 24px; background: var(--white); border-radius: var(--radius-sm); padding: 14px 18px; box-shadow: var(--shadow-lg); border-left: 4px solid var(--accent); font-size: 0.85rem; z-index: 1500; max-width: 280px; display: none; animation: slideInLeft 0.4s ease; }
.notif-popup.show { display: block; }
@keyframes slideInLeft { from{transform:translateX(-100%);opacity:0} to{transform:translateX(0);opacity:1} }

/* ============================
   MOBILE RESPONSIVE
============================ */
@media (max-width: 1024px) {
  .badges-grid { grid-template-columns: repeat(2, 1fr); }
  .science-grid { grid-template-columns: repeat(2, 1fr); }
  .ing-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  section { padding: 52px 0; }
  .nav-links { display: none; flex-direction: column; position: absolute; top: 100%; left: 0; width: 100%; background: var(--white); padding: 20px 24px 28px; box-shadow: var(--shadow-lg); gap: 0; border-top: 1px solid var(--border); }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 13px 0; border-bottom: 1px solid var(--border); font-size: 1rem; width: 100%; }
  .nav-links a:last-child { border-bottom: none; margin-top: 10px; }
  .nav-cta { text-align: center; justify-content: center; border-radius: 50px; }
  .hamburger { display: flex; }
  .navbar { position: fixed; }
  .nav-container { padding: 12px 20px; }

  .hero { padding-top: 76px; }
  .hero-inner { grid-template-columns: 1fr; gap: 32px; padding: 40px 20px; text-align: center; }
  .hero-image { order: -1; }
  .hero-bottle { max-height: 320px; }
  .badge-1 { top: 5%; left: 0; font-size: 0.7rem; padding: 5px 10px; }
  .badge-2 { right: 0; font-size: 0.7rem; padding: 5px 10px; }
  .badge-3 { bottom: 5%; left: 0; font-size: 0.7rem; padding: 5px 10px; }
  .hero-trust { justify-content: center; }
  .hero-price-row { justify-content: center; }
  .hero-cta { max-width: 100%; }

  .what-is-inner { grid-template-columns: 1fr; gap: 32px; }
  .what-is-img { order: -1; }
  .guarantee-inner { grid-template-columns: 1fr; gap: 32px; }
  .guarantee-img { order: -1; }
  .final-cta-inner { grid-template-columns: 1fr; gap: 32px; text-align: center; }
  .final-img { order: -1; }
  .final-trust { justify-content: center; }

  .reviews-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 380px; margin: 0 auto; }
  .price-card.popular { transform: none; border-width: 3px; }
  .bonus-grid { grid-template-columns: 1fr; }
  .bonus-card { flex-direction: column; align-items: center; text-align: center; }
  .benefits-grid { grid-template-columns: 1fr; }
  .footer-top { flex-direction: column; align-items: flex-start; }
  .footer-links { flex-direction: column; gap: 10px; }
  .time-unit span { font-size: 1.8rem; }
  .countdown-box { flex-direction: column; gap: 12px; }
}

@media (max-width: 576px) {
  .badges-grid { grid-template-columns: 1fr; }
  .ing-grid { grid-template-columns: 1fr; }
  .science-grid { grid-template-columns: 1fr; }
  .hero-h1 { font-size: 1.55rem; }
  .section-title { font-size: 1.4rem; }
  .btn-mega { font-size: 1rem; padding: 16px 24px; }
  .popup-box { padding: 28px 20px; }
  .notif-popup { left: 16px; right: 16px; max-width: none; bottom: 80px; }
  .scroll-top { bottom: 16px; right: 16px; width: 50px; height: 50px; }
}

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