/* Medical Professional Design - Joint Genesis */
:root {
    --primary: #1E40AF;
    --secondary: #3B82F6;
    --accent: #93C5FD;
    --dark: #1F2937;
    --light: #F9FAFB;
    --white: #FFFFFF;
    --shadow: 0 10px 30px rgba(0,0,0,0.08);
    --shadow-lg: 0 20px 50px rgba(0,0,0,0.12);
    --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
}

* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html { font-size: 16px; scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif; line-height: 1.6; color: var(--dark); background: var(--white); overflow-x: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section { padding: 60px 0; }
.section-title { font-size: 32px; font-weight: 800; text-align: center; margin-bottom: 15px; color: var(--primary); }
.section-subtitle { text-align: center; font-size: 18px; color: #6B7280; margin-bottom: 40px; }

/* Header */
.header { position: fixed; top: 0; left: 0; width: 100%; background: var(--white); box-shadow: 0 2px 10px rgba(0,0,0,0.1); z-index: 1000; transition: var(--transition); }
.nav { display: flex; justify-content: space-between; align-items: center; padding: 15px 20px; }
.nav-logo { font-size: 24px; font-weight: 800; color: var(--primary); }
.nav-menu { display: flex; align-items: center; gap: 30px; }
.nav-list { display: flex; gap: 25px; }
.nav-link { font-weight: 600; color: var(--dark); position: relative; }
.nav-link::after { content: ''; position: absolute; bottom: -5px; left: 0; width: 0; height: 2px; background: var(--primary); transition: width 0.3s; }
.nav-link:hover::after { width: 100%; }
.nav-cta { padding: 10px 25px; min-height: 48px; display: flex; align-items: center; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 10px; min-width: 44px; min-height: 44px; justify-content: center; align-items: center; position: relative; }
.nav-toggle-icon, .nav-toggle-icon::before, .nav-toggle-icon::after { content: ''; width: 25px; height: 3px; background: var(--primary); border-radius: 3px; transition: var(--transition); }
.nav-toggle-icon::before, .nav-toggle-icon::after { position: absolute; }
.nav-toggle-icon::before { transform: translateY(-8px); }
.nav-toggle-icon::after { transform: translateY(8px); }

/* Buttons */
.btn { display: inline-block; padding: 15px 35px; min-height: 48px; font-weight: 700; font-size: 16px; text-align: center; border-radius: 8px; transition: var(--transition); cursor: pointer; border: none; }
.btn-primary { background: var(--primary); color: var(--white); box-shadow: 0 4px 15px rgba(30,64,175,0.3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(30,64,175,0.4); }
.btn-hero { background: var(--primary); color: var(--white); padding: 18px 45px; font-size: 18px; box-shadow: 0 6px 20px rgba(30,64,175,0.3); }
.btn-hero:hover { transform: translateY(-2px) scale(1.02); }
.btn-pricing { background: var(--secondary); color: var(--white); width: 100%; padding: 15px; font-size: 18px; box-shadow: 0 4px 15px rgba(59,130,246,0.3); }
.btn-pricing:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(59,130,246,0.4); }
.btn-final-cta { background: var(--primary); color: var(--white); padding: 20px 50px; font-size: 20px; box-shadow: 0 8px 25px rgba(30,64,175,0.4); }

/* Hero */
.hero { padding: 120px 0 80px; background: linear-gradient(135deg, #EFF6FF 0%, #DBEAFE 100%); }
.hero-container { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.hero-img { position: relative; animation: float 3s ease-in-out infinite; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-20px); } }
.hero-product { width: 100%; filter: drop-shadow(0 20px 40px rgba(0,0,0,0.15)); }
.hero-content { animation: fadeInUp 1s ease-out; }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
.hero-tag { display: inline-block; background: var(--white); padding: 10px 20px; border-radius: 25px; font-weight: 700; color: var(--primary); margin-bottom: 20px; box-shadow: 0 4px 10px rgba(0,0,0,0.1); }
.hero-title { font-size: 48px; font-weight: 900; line-height: 1.2; margin-bottom: 25px; color: var(--dark); }
.hero-description { font-size: 18px; line-height: 1.8; color: #374151; margin-bottom: 15px; }
.hero-stats { display: flex; gap: 30px; margin-top: 30px; flex-wrap: wrap; }
.stat-item { display: flex; flex-direction: column; align-items: center; }
.stat-item strong { font-size: 28px; font-weight: 800; color: var(--primary); }
.stat-item span { font-size: 14px; color: #6B7280; }

/* Features */
.why-choose { background: var(--white); }
.features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.feature-card { background: var(--white); padding: 30px; border-radius: 15px; text-align: center; box-shadow: var(--shadow); transition: var(--transition); border: 2px solid var(--light); }
.feature-card:hover { transform: translateY(-10px); box-shadow: var(--shadow-lg); border-color: var(--accent); }
.feature-icon { width: 80px; height: 80px; margin: 0 auto 20px; }
.feature-title { font-size: 20px; font-weight: 700; margin-bottom: 10px; color: var(--dark); }
.feature-description { font-size: 15px; color: #6B7280; line-height: 1.6; }

/* What Is */
.what-is { background: var(--light); }
.what-is-container { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.what-is-text { font-size: 16px; line-height: 1.8; color: #4B5563; margin-bottom: 20px; }
.what-is-img img { border-radius: 15px; box-shadow: var(--shadow-lg); }

/* How It Works */
.how-it-works { background: var(--white); }
.accordion { max-width: 900px; margin: 0 auto; }
.accordion-item { background: var(--white); border: 2px solid #E5E7EB; border-radius: 12px; margin-bottom: 15px; overflow: hidden; transition: var(--transition); }
.accordion-item:hover { border-color: var(--secondary); }
.accordion-header { width: 100%; display: flex; align-items: center; gap: 15px; padding: 20px 25px; min-height: 48px; font-size: 18px; font-weight: 700; text-align: left; color: var(--dark); cursor: pointer; transition: var(--transition); }
.accordion-header:hover { background: #F9FAFB; }
.accordion-icon { font-size: 28px; flex-shrink: 0; }
.accordion-toggle { margin-left: auto; font-size: 28px; font-weight: 300; color: var(--primary); transition: transform 0.3s; }
.accordion-item.active .accordion-toggle { transform: rotate(45deg); }
.accordion-content { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.accordion-content p { padding: 0 25px 25px; font-size: 16px; line-height: 1.8; color: #4B5563; }
.accordion-item.active .accordion-content { max-height: 500px; }

/* Reviews */
.reviews { background: linear-gradient(135deg, #EFF6FF 0%, #DBEAFE 100%); }
.reviews-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.review-card { background: var(--white); padding: 30px; border-radius: 15px; text-align: center; box-shadow: var(--shadow); transition: var(--transition); animation: fadeInUp 0.6s ease-out; animation-fill-mode: both; }
.review-card:nth-child(1) { animation-delay: 0.1s; }
.review-card:nth-child(2) { animation-delay: 0.2s; }
.review-card:nth-child(3) { animation-delay: 0.3s; }
.review-card:hover { transform: translateY(-10px) scale(1.02); box-shadow: var(--shadow-lg); }
.review-img { width: 80px; height: 80px; border-radius: 50%; margin: 0 auto 15px; border: 4px solid var(--secondary); }
.review-name { font-size: 20px; font-weight: 700; color: var(--dark); margin-bottom: 5px; }
.review-location { font-size: 14px; color: #6B7280; margin-bottom: 10px; }
.review-stars { font-size: 20px; margin-bottom: 15px; }
.review-text { font-size: 15px; line-height: 1.7; color: #4B5563; margin-bottom: 15px; font-style: italic; }
.review-verified { display: inline-block; background: #D1FAE5; color: #059669; padding: 5px 15px; border-radius: 15px; font-size: 13px; font-weight: 600; }

/* Pricing */
.pricing { background: var(--white); }
.countdown-wrapper { text-align: center; margin-bottom: 40px; }
.countdown-label { font-size: 18px; font-weight: 600; color: var(--dark); margin-bottom: 10px; }
.countdown { display: inline-block; background: var(--primary); color: var(--white); padding: 20px 40px; border-radius: 12px; font-size: 48px; font-weight: 800; box-shadow: 0 8px 25px rgba(30,64,175,0.3); letter-spacing: 3px; }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; margin-bottom: 40px; }
.pricing-card { background: var(--white); border: 3px solid #E5E7EB; border-radius: 20px; padding: 30px; text-align: center; transition: var(--transition); position: relative; }
.pricing-card:hover { transform: translateY(-10px); box-shadow: var(--shadow-lg); border-color: var(--secondary); }
.pricing-featured { border-color: var(--primary); transform: scale(1.05); box-shadow: 0 15px 40px rgba(30,64,175,0.2); }
.pricing-badge { position: absolute; top: -15px; left: 50%; transform: translateX(-50%); background: var(--primary); color: var(--white); padding: 8px 25px; border-radius: 25px; font-size: 14px; font-weight: 700; box-shadow: 0 4px 10px rgba(30,64,175,0.3); }
.pricing-label { display: inline-block; background: var(--light); padding: 8px 20px; border-radius: 20px; font-size: 14px; font-weight: 700; color: var(--dark); margin-bottom: 15px; }
.pricing-package { font-size: 24px; font-weight: 800; color: var(--dark); margin-bottom: 5px; }
.pricing-supply { font-size: 14px; color: #6B7280; margin-bottom: 20px; }
.pricing-img { max-width: 150px; margin: 0 auto 20px; }
.pricing-per-bottle { font-size: 18px; font-weight: 600; color: var(--primary); margin-bottom: 10px; }
.pricing-price { margin-bottom: 15px; }
.price-old { display: block; font-size: 20px; color: #9CA3AF; text-decoration: line-through; }
.price-new { display: block; font-size: 42px; font-weight: 900; color: var(--primary); }
.pricing-bonuses { display: flex; flex-direction: column; gap: 10px; margin-bottom: 20px; }
.bonus-badge { background: #D1FAE5; color: #059669; padding: 8px 15px; border-radius: 20px; font-size: 13px; font-weight: 700; }
.payment-icons { display: flex; justify-content: center; gap: 10px; margin-top: 15px; font-size: 24px; }
.rating-section { text-align: center; }
.rating-img { max-width: 200px; margin: 0 auto 10px; }
.rating-text { font-size: 16px; color: #6B7280; }

/* Ingredients */
.ingredients { background: var(--light); }
.ingredients-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 25px; }
.ingredient-card { background: var(--white); padding: 25px; border-radius: 12px; box-shadow: var(--shadow); transition: var(--transition); border-left: 4px solid var(--secondary); }
.ingredient-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.ingredient-icon { font-size: 32px; margin-bottom: 10px; display: block; }
.ingredient-name { font-size: 20px; font-weight: 700; color: var(--dark); margin-bottom: 10px; }
.ingredient-description { font-size: 15px; line-height: 1.7; color: #4B5563; }

/* Scientific */
.scientific { background: var(--white); }
.scientific-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
.scientific-card { background: var(--light); padding: 30px; border-radius: 15px; border-left: 5px solid var(--secondary); transition: var(--transition); }
.scientific-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.scientific-title { font-size: 20px; font-weight: 700; color: var(--dark); margin-bottom: 15px; }
.scientific-text { font-size: 15px; line-height: 1.8; color: #4B5563; margin-bottom: 15px; }
.scientific-reference { font-size: 13px; color: #6B7280; font-style: italic; }

/* Guarantee */
.guarantee { background: linear-gradient(135deg, #EFF6FF 0%, #DBEAFE 100%); }
.guarantee-container { display: grid; grid-template-columns: 1fr 1.5fr; gap: 60px; align-items: center; }
.guarantee-img img { border-radius: 15px; box-shadow: var(--shadow-lg); }
.guarantee-item { display: flex; gap: 20px; margin-bottom: 30px; align-items: flex-start; }
.guarantee-icon { font-size: 32px; color: var(--secondary); flex-shrink: 0; }
.guarantee-subtitle { font-size: 20px; font-weight: 700; color: var(--dark); margin-bottom: 10px; }
.guarantee-text { font-size: 16px; line-height: 1.7; color: #4B5563; }

/* Benefits */
.benefits { background: var(--white); }
.benefits-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; max-width: 900px; margin: 0 auto; }
.benefit-item { display: flex; align-items: center; gap: 15px; background: var(--light); padding: 20px; border-radius: 12px; transition: var(--transition); border-left: 4px solid var(--secondary); }
.benefit-item:hover { transform: translateX(10px); background: #E5E7EB; }
.benefit-icon { font-size: 28px; color: var(--secondary); flex-shrink: 0; }
.benefit-text { font-size: 16px; line-height: 1.6; color: var(--dark); font-weight: 500; }

/* FAQ */
.faq { background: var(--light); }
.faq-accordion { max-width: 900px; margin: 0 auto; }
.faq-item { background: var(--white); border-radius: 12px; margin-bottom: 15px; overflow: hidden; box-shadow: var(--shadow); }
.faq-question { width: 100%; display: flex; justify-content: space-between; align-items: center; padding: 20px 25px; min-height: 48px; font-size: 18px; font-weight: 700; text-align: left; color: var(--dark); cursor: pointer; transition: var(--transition); }
.faq-question:hover { background: #F9FAFB; }
.faq-toggle { font-size: 28px; font-weight: 300; color: var(--primary); flex-shrink: 0; transition: transform 0.3s; }
.faq-item.active .faq-toggle { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.faq-answer p { padding: 0 25px 25px; font-size: 16px; line-height: 1.8; color: #4B5563; }
.faq-item.active .faq-answer { max-height: 400px; }

/* Final CTA */
.final-cta { background: var(--primary); padding: 80px 0; }
.final-cta-container { text-align: center; }
.final-cta-img { max-width: 300px; margin: 0 auto 30px; filter: drop-shadow(0 10px 30px rgba(0,0,0,0.3)); }
.final-cta-title { font-size: 36px; font-weight: 900; color: var(--white); margin-bottom: 25px; line-height: 1.3; }
.final-cta-pricing { display: flex; flex-direction: column; align-items: center; gap: 10px; margin-bottom: 30px; }
.final-cta-old-price { font-size: 20px; color: rgba(255,255,255,0.8); text-decoration: line-through; }
.final-cta-new-price { font-size: 48px; font-weight: 900; color: var(--white); }
.btn-final-cta { background: var(--white); color: var(--primary); }
.btn-final-cta:hover { transform: translateY(-3px) scale(1.05); }

/* Footer */
.footer { background: var(--dark); color: var(--white); padding: 60px 0 30px; }
.footer-container { text-align: center; }
.footer-links { display: flex; justify-content: center; gap: 30px; margin-bottom: 30px; flex-wrap: wrap; }
.footer-link { color: var(--white); font-weight: 500; transition: var(--transition); }
.footer-link:hover { color: var(--accent); }
.footer-social { display: flex; justify-content: center; gap: 20px; margin-bottom: 30px; }
.social-link { font-size: 28px; transition: var(--transition); }
.social-link:hover { transform: scale(1.2); }
.footer-disclaimer { max-width: 900px; margin: 0 auto 30px; padding: 20px; background: rgba(255,255,255,0.1); border-radius: 10px; font-size: 14px; line-height: 1.6; color: rgba(255,255,255,0.8); }
.footer-copyright { font-size: 14px; color: rgba(255,255,255,0.6); }

/* Notifications */
.purchase-notification { position: fixed; bottom: -100px; left: 20px; background: var(--white); padding: 15px 20px; border-radius: 10px; box-shadow: 0 10px 30px rgba(0,0,0,0.2); z-index: 999; transition: bottom 0.5s ease; max-width: 300px; }
.purchase-notification.show { bottom: 20px; }
.scroll-to-top { position: fixed; bottom: 30px; right: 30px; width: 56px; height: 56px; background: var(--primary); color: var(--white); border-radius: 50%; font-size: 24px; display: none; align-items: center; justify-content: center; box-shadow: 0 4px 15px rgba(30,64,175,0.3); cursor: pointer; transition: var(--transition); z-index: 998; }
.scroll-to-top.show { display: flex; }
.scroll-to-top:hover { transform: translateY(-5px); box-shadow: 0 6px 20px rgba(30,64,175,0.4); }

/* Responsive */
@media (min-width: 576px) and (max-width: 767px) {
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .pricing-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 767px) {
    .nav-menu { position: fixed; top: 0; right: -100%; width: 75%; height: 100vh; background: var(--white); flex-direction: column; justify-content: flex-start; padding: 80px 30px 30px; box-shadow: -5px 0 15px rgba(0,0,0,0.1); transition: right 0.4s ease; z-index: 100; }
    .nav-menu.show { right: 0; }
    .nav-list { flex-direction: column; width: 100%; }
    .nav-link { padding: 15px 0; border-bottom: 1px solid #E5E7EB; }
    .nav-cta { width: 100%; justify-content: center; }
    .nav-toggle { display: flex; }
    .hero { padding: 100px 0 60px; }
    .hero-container { grid-template-columns: 1fr; gap: 30px; }
    .hero-title { font-size: 28px; }
    .hero-description { font-size: 16px; }
    .section-title { font-size: 26px; }
    .features-grid { grid-template-columns: 1fr; }
    .what-is-container { grid-template-columns: 1fr; }
    .what-is-img { order: -1; }
    .reviews-grid { grid-template-columns: 1fr; }
    .countdown { font-size: 36px; padding: 15px 30px; }
    .pricing-grid { grid-template-columns: 1fr; }
    .pricing-featured { transform: scale(1); }
    .ingredients-grid { grid-template-columns: 1fr; }
    .scientific-grid { grid-template-columns: 1fr; }
    .guarantee-container { grid-template-columns: 1fr; }
    .guarantee-img { order: -1; }
    .benefits-grid { grid-template-columns: 1fr; }
    .final-cta-title { font-size: 26px; }
    .footer-links { flex-direction: column; gap: 15px; }
}

@media (max-width: 480px) {
    .container { padding: 0 15px; }
    .section { padding: 40px 0; }
    .hero-title { font-size: 24px; }
    .hero-stats { gap: 15px; }
    .stat-item strong { font-size: 22px; }
    .countdown { font-size: 28px; padding: 12px 20px; }
    .price-new { font-size: 32px; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}