/* =====================================================
   XenBurn Landing Page - Premium Theme
   Purple/Navy Gradient + Fire Orange Accents
   GTmetrix A+ Optimized | Mobile First | SEO Ready
   ===================================================== */

:root {
    --primary-navy: #1a2744;
    --primary-purple: #2d1b4e;
    --dark-purple: #1a0f2e;
    --accent-orange: #ff6b35;
    --accent-yellow: #ffc107;
    --fire-gradient: linear-gradient(135deg, #ff6b35 0%, #f7931e 50%, #ffc107 100%);
    --hero-gradient: linear-gradient(135deg, #1a0f2e 0%, #2d1b4e 30%, #1a2744 70%, #ff6b35 100%);
    --section-gradient: linear-gradient(180deg, #2d1b4e 0%, #1a2744 100%);
    --text-white: #ffffff;
    --text-light: rgba(255,255,255,0.9);
    --text-muted: rgba(255,255,255,0.7);
    --text-black: #000000;
    --shadow-glow: 0 0 30px rgba(255, 107, 53, 0.4);
    --shadow-soft: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-medium: 0 8px 40px rgba(0,0,0,0.15);
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: 'Segoe UI', Arial, sans-serif; font-size: 18px; line-height: 1.8; color: var(--text-black); background: #fff; }
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }

h1 { font-size: 46px; font-weight: 700; color: var(--primary-navy); line-height: 1.2; }
h2 { font-size: 36px; font-weight: 600; color: var(--primary-navy); line-height: 1.3; }
h3 { font-size: 28px; font-weight: 600; color: var(--primary-navy); line-height: 1.4; }
p { font-size: 18px; color: var(--text-black); line-height: 1.8; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* Top Bar */
.top-bar { background: var(--fire-gradient); padding: 12px 0; text-align: center; }
.top-bar p { color: white; font-size: 15px; font-weight: 600; margin: 0; }

/* Header */
.header { background: linear-gradient(135deg, var(--dark-purple) 0%, var(--primary-navy) 100%); padding: 15px 0; position: sticky; top: 0; z-index: 1000; }
.header-inner { display: flex; justify-content: space-between; align-items: center; }
.logo-text { font-size: 28px; font-weight: 800; letter-spacing: 2px; }
.logo-xen { color: var(--accent-orange); }
.logo-burn { color: white; }
.nav-menu { display: flex; align-items: center; gap: 30px; list-style: none; }
.nav-menu a { color: var(--text-light); font-size: 15px; font-weight: 500; }
.nav-menu a:hover { color: var(--accent-orange); }
.header-cta { background: var(--fire-gradient); color: white; padding: 12px 28px; border-radius: 50px; font-weight: 700; font-size: 14px; text-transform: uppercase; letter-spacing: 1px; box-shadow: var(--shadow-glow); animation: pulse-glow 2s infinite; }
@keyframes pulse-glow { 0%, 100% { box-shadow: 0 0 20px rgba(255,107,53,0.4); } 50% { box-shadow: 0 0 35px rgba(255,107,53,0.7); } }

/* Hero */
.hero { background: var(--hero-gradient); padding: 80px 0 100px; position: relative; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hero-content { color: white; }
.hero-badge { display: inline-block; background: rgba(255,255,255,0.15); color: white; padding: 10px 24px; border-radius: 50px; font-size: 14px; font-weight: 600; margin-bottom: 25px; border: 1px solid rgba(255,255,255,0.2); }
.hero h1 { color: white; margin-bottom: 25px; font-size: 48px; }
.hero h1 span { background: var(--fire-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-subtitle { font-size: 20px; color: var(--text-muted); margin-bottom: 35px; }
.hero-features { display: flex; flex-wrap: wrap; gap: 15px; margin-bottom: 40px; }
.hero-feature { display: flex; align-items: center; gap: 10px; background: rgba(255,255,255,0.1); padding: 12px 20px; border-radius: 50px; font-size: 14px; color: white; border: 1px solid rgba(255,255,255,0.15); }
.hero-feature svg { color: var(--accent-orange); }
.hero-cta-group { display: flex; gap: 20px; align-items: center; margin-bottom: 40px; }
.btn-primary { background: var(--fire-gradient); color: white; padding: 18px 40px; border-radius: 50px; font-size: 18px; font-weight: 700; display: inline-flex; align-items: center; gap: 10px; box-shadow: var(--shadow-glow); text-transform: uppercase; letter-spacing: 1px; }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 10px 40px rgba(255,107,53,0.5); }
.btn-secondary { background: transparent; color: white; padding: 18px 30px; border-radius: 50px; font-size: 16px; font-weight: 600; border: 2px solid rgba(255,255,255,0.3); }
.btn-secondary:hover { background: rgba(255,255,255,0.1); }
.hero-trust { display: flex; align-items: center; gap: 15px; padding-top: 30px; border-top: 1px solid rgba(255,255,255,0.15); }
.trust-avatars { display: flex; }
.trust-avatars span { width: 42px; height: 42px; border-radius: 50%; background: var(--fire-gradient); border: 3px solid var(--dark-purple); margin-left: -12px; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; color: white; }
.trust-avatars span:first-child { margin-left: 0; }
.trust-text { font-size: 14px; color: var(--text-muted); }
.trust-text strong { color: white; display: block; font-size: 16px; }
.hero-image { text-align: center; position: relative; }
.hero-image img { max-width: 480px; margin: 0 auto; filter: drop-shadow(0 30px 60px rgba(0,0,0,0.4)); animation: float 6s ease-in-out infinite; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-20px); } }
.hero-image::before { content: ''; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 400px; height: 400px; background: radial-gradient(circle, rgba(255,107,53,0.3) 0%, transparent 70%); border-radius: 50%; z-index: -1; }

/* Sections */
.section { padding: 80px 0; }
.section-dark { background: linear-gradient(180deg, var(--primary-navy) 0%, var(--dark-purple) 100%); color: white; }
.section-dark h2, .section-dark h3, .section-dark .section-header h2 { color: white !important; }
.section-dark p, .section-dark .section-header p { color: var(--text-muted); }
.benefits-section .section-header h2, .testimonials-section .section-header h2, .pricing-section .section-header h2 { color: white !important; }
.benefits-section .section-header p, .testimonials-section .section-header p, .pricing-section .section-header p { color: var(--text-muted) !important; }
.section-light { background: #fff; }
.section-alt { background: #f8f9fa; }
.section-header { text-align: center; max-width: 700px; margin: 0 auto 50px; }
.section-header h2 { margin-bottom: 15px; }

/* What Is Section */
.what-is-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.what-is-content h2 { color: white; margin-bottom: 25px; }
.what-is-content p { color: var(--text-muted); margin-bottom: 20px; }
.what-is-highlights { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 35px; }
.highlight-box { background: rgba(255,255,255,0.08); padding: 25px; border-radius: var(--border-radius); text-align: center; border: 1px solid rgba(255,255,255,0.1); transition: var(--transition); }
.highlight-box:hover { background: rgba(255,255,255,0.12); transform: translateY(-5px); border-color: var(--accent-orange); }
.highlight-box svg { width: 40px; height: 40px; color: var(--accent-orange); margin-bottom: 15px; }
.highlight-box h4 { font-size: 16px; color: white; font-weight: 600; }
.what-is-image img { border-radius: var(--border-radius); box-shadow: 0 20px 60px rgba(0,0,0,0.3); }

/* Steps */
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.step-card { background: white; padding: 35px 25px; border-radius: var(--border-radius); text-align: center; box-shadow: var(--shadow-soft); transition: var(--transition); border-bottom: 4px solid transparent; }
.step-card:hover { transform: translateY(-10px); box-shadow: var(--shadow-medium); border-bottom-color: var(--accent-orange); }
.step-number { width: 55px; height: 55px; background: var(--fire-gradient); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 22px; font-weight: 700; color: white; margin: 0 auto 20px; box-shadow: 0 5px 20px rgba(255,107,53,0.3); }
.step-card h3 { font-size: 20px; margin-bottom: 12px; }
.step-card p { font-size: 16px; color: #666; }

/* Benefits */
.benefits-section { background: linear-gradient(135deg, var(--dark-purple) 0%, var(--primary-navy) 50%, #0f1628 100%); color: white; }
.benefits-section .section-header h2 { color: #ffffff !important; }
.benefits-section .section-header p { color: rgba(255,255,255,0.7) !important; }
.benefits-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.benefit-card { background: rgba(255,255,255,0.05); padding: 40px 30px; border-radius: var(--border-radius); text-align: center; border: 1px solid rgba(255,255,255,0.1); transition: var(--transition); }
.benefit-card:hover { background: rgba(255,255,255,0.1); transform: translateY(-10px); border-color: var(--accent-orange); }
.benefit-icon { width: 70px; height: 70px; background: var(--fire-gradient); border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; box-shadow: var(--shadow-glow); }
.benefit-icon svg { width: 35px; height: 35px; color: white; }
.benefit-card h3 { font-size: 22px; color: white; margin-bottom: 12px; }
.benefit-card p { font-size: 16px; color: var(--text-muted); }

/* Ingredients */
.ingredients-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 25px; }
.ingredient-card { background: white; padding: 30px; border-radius: var(--border-radius); box-shadow: var(--shadow-soft); border-left: 4px solid var(--accent-orange); transition: var(--transition); }
.ingredient-card:hover { transform: translateX(8px); box-shadow: var(--shadow-medium); }
.ingredient-card h3 { font-size: 20px; margin-bottom: 12px; display: flex; align-items: center; gap: 10px; }
.ingredient-card h3 svg { color: var(--accent-orange); flex-shrink: 0; }
.ingredient-card p { font-size: 15px; color: #555; }
.ingredient-card a { color: var(--primary-purple); font-weight: 600; font-size: 14px; display: inline-flex; align-items: center; gap: 5px; margin-top: 12px; }
.ingredient-card a:hover { color: var(--accent-orange); }

/* Doctor */
.doctor-section { background: linear-gradient(135deg, #f0e6ff 0%, #e8f4ff 100%); }
.doctor-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 60px; align-items: center; }
.doctor-image img { max-width: 380px; border-radius: var(--border-radius); box-shadow: var(--shadow-medium); }
.doctor-features { display: flex; flex-direction: column; gap: 20px; }
.doctor-feature { display: flex; align-items: flex-start; gap: 15px; background: white; padding: 18px 22px; border-radius: var(--border-radius); box-shadow: var(--shadow-soft); }
.doctor-feature svg { width: 24px; height: 24px; color: var(--accent-orange); flex-shrink: 0; margin-top: 2px; }
.doctor-feature p { font-size: 16px; margin: 0; }

/* Testimonials */
.testimonials-section { background: linear-gradient(180deg, var(--primary-navy) 0%, var(--dark-purple) 100%); color: white; }
.testimonials-section .section-header h2 { color: #ffffff !important; }
.testimonials-section .section-header p { color: rgba(255,255,255,0.7) !important; }
.testimonials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.testimonial-card { background: rgba(255,255,255,0.08); padding: 35px; border-radius: var(--border-radius); border: 1px solid rgba(255,255,255,0.1); }
.testimonial-stars { color: #fbbf24; font-size: 20px; margin-bottom: 15px; letter-spacing: 3px; }
.testimonial-card > p { font-size: 16px; color: var(--text-muted); font-style: italic; margin-bottom: 25px; }
.testimonial-author { display: flex; align-items: center; gap: 15px; }
.testimonial-avatar { width: 55px; height: 55px; border-radius: 50%; background: var(--fire-gradient); display: flex; align-items: center; justify-content: center; font-size: 18px; font-weight: 700; color: white; }
.testimonial-info h4 { font-size: 16px; color: white; font-weight: 600; margin-bottom: 3px; }
.testimonial-info span { font-size: 14px; color: var(--text-muted); }
.testimonial-verified { display: inline-flex; align-items: center; gap: 5px; background: rgba(34,197,94,0.2); color: #4ade80; padding: 4px 12px; border-radius: 50px; font-size: 12px; margin-top: 8px; }
.testimonial-disclaimer { text-align: center; margin-top: 40px; padding: 20px 30px; background: rgba(255,255,255,0.05); border-radius: var(--border-radius); font-size: 14px; color: var(--text-muted); }

/* Pricing */
.pricing-section { background: linear-gradient(180deg, var(--dark-purple) 0%, #0a0612 100%); color: white; padding: 100px 0; }
.pricing-section .section-header h2, .pricing-section .section-header p { color: white; }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; margin-bottom: 40px; }
.pricing-card { background: rgba(255,255,255,0.05); border-radius: 20px; overflow: hidden; position: relative; transition: var(--transition); border: 1px solid rgba(255,255,255,0.1); }
.pricing-card:hover { transform: translateY(-10px); border-color: var(--accent-orange); }
.pricing-card.popular { transform: scale(1.05); border: 2px solid var(--accent-orange); box-shadow: var(--shadow-glow); }
.pricing-card.popular:hover { transform: scale(1.05) translateY(-10px); }
.popular-badge { position: absolute; top: 0; left: 0; right: 0; background: var(--fire-gradient); color: white; padding: 10px; font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: 2px; text-align: center; }
.pricing-header { padding: 50px 30px 25px; text-align: center; }
.pricing-card.popular .pricing-header { padding-top: 60px; }
.pricing-image { max-width: 180px; margin: 0 auto 20px; filter: drop-shadow(0 10px 30px rgba(0,0,0,0.3)); }
.pricing-name { font-size: 14px; font-weight: 700; color: var(--accent-orange); text-transform: uppercase; letter-spacing: 2px; margin-bottom: 8px; }
.pricing-supply { font-size: 16px; color: var(--text-muted); margin-bottom: 20px; }
.pricing-amount { display: flex; align-items: flex-end; justify-content: center; gap: 5px; margin-bottom: 5px; }
.pricing-amount .currency { font-size: 28px; font-weight: 700; color: white; }
.pricing-amount .price { font-size: 60px; font-weight: 800; color: white; line-height: 1; }
.pricing-amount .per { font-size: 16px; color: var(--text-muted); margin-bottom: 10px; }
.pricing-original { font-size: 16px; color: #888; text-decoration: line-through; }
.pricing-body { padding: 25px 30px 35px; }
.pricing-features { list-style: none; margin-bottom: 25px; }
.pricing-features li { display: flex; align-items: center; gap: 12px; font-size: 15px; color: var(--text-light); margin-bottom: 14px; }
.pricing-features li svg { width: 20px; height: 20px; color: #4ade80; flex-shrink: 0; }
.pricing-features li.unavailable { color: #666; }
.pricing-features li.unavailable svg { color: #666; }
.pricing-btn { width: 100%; background: var(--fire-gradient); color: white; padding: 18px 30px; border-radius: 50px; font-size: 17px; font-weight: 700; text-align: center; display: block; text-transform: uppercase; letter-spacing: 1px; box-shadow: var(--shadow-glow); transition: var(--transition); }
.pricing-btn:hover { box-shadow: 0 10px 40px rgba(255,107,53,0.5); transform: translateY(-2px); }
.pricing-guarantee { display: flex; align-items: center; justify-content: center; gap: 8px; margin-top: 18px; font-size: 13px; color: var(--text-muted); }
.pricing-guarantee svg { color: #4ade80; }
.payment-logos { display: flex; justify-content: center; gap: 15px; flex-wrap: wrap; }
.payment-logos span { padding: 10px 20px; border-radius: 8px; font-weight: 700; font-size: 14px; }

/* Final CTA */
.final-cta { background: linear-gradient(135deg, #fff5f0 0%, #ffe4d6 50%, #f0e6ff 100%); padding: 100px 0; }
.final-cta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.final-cta-content h2 { margin-bottom: 20px; }
.final-cta-content > p { font-size: 18px; color: #555; margin-bottom: 30px; }
.guarantee-box { background: white; padding: 28px; border-radius: var(--border-radius); display: flex; align-items: center; gap: 20px; box-shadow: var(--shadow-medium); margin-bottom: 35px; border-left: 5px solid var(--accent-orange); }
.guarantee-icon { width: 65px; height: 65px; background: var(--fire-gradient); border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; box-shadow: var(--shadow-glow); }
.guarantee-icon svg { width: 32px; height: 32px; color: white; }
.guarantee-text h4 { font-size: 20px; color: var(--primary-navy); margin-bottom: 5px; }
.guarantee-text p { font-size: 15px; color: #666; margin: 0; }
.final-cta-image img { max-width: 420px; margin: 0 auto; filter: drop-shadow(0 30px 60px rgba(0,0,0,0.2)); }

/* FAQ */
.faq-section { background: #f8f9fa; }
.faq-container { max-width: 800px; margin: 0 auto; }
.faq-item { background: white; border-radius: var(--border-radius); margin-bottom: 15px; box-shadow: var(--shadow-soft); overflow: hidden; }
.faq-question { width: 100%; display: flex; justify-content: space-between; align-items: center; padding: 24px 28px; font-size: 18px; font-weight: 600; color: var(--primary-navy); background: transparent; border: none; cursor: pointer; text-align: left; }
.faq-question:hover { background: #f8f9fa; }
.faq-question svg { width: 24px; height: 24px; color: var(--accent-orange); transition: var(--transition); flex-shrink: 0; }
.faq-item.active .faq-question svg { transform: rotate(180deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.faq-answer-inner { padding: 0 28px 24px; font-size: 16px; color: #555; line-height: 1.8; }
.faq-item.active .faq-answer { max-height: 500px; }

/* Footer */
.footer { background: linear-gradient(180deg, #0a0612 0%, #000 100%); color: white; padding: 70px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 50px; }
.footer-brand .logo-text { margin-bottom: 20px; }
.footer-brand p { color: rgba(255,255,255,0.6); font-size: 15px; }
.footer-col h4 { font-size: 16px; font-weight: 700; margin-bottom: 22px; color: white; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 12px; }
.footer-links a { color: rgba(255,255,255,0.6); font-size: 15px; }
.footer-links a:hover { color: var(--accent-orange); }
.footer-bottom { padding-top: 30px; border-top: 1px solid rgba(255,255,255,0.1); }
.footer-disclaimer { font-size: 13px; color: rgba(255,255,255,0.4); line-height: 1.8; margin-bottom: 15px; }
.footer-copyright { text-align: center; font-size: 14px; color: rgba(255,255,255,0.5); padding-top: 20px; }

/* Floating CTA */
.floating-cta { position: fixed; bottom: 20px; right: 20px; z-index: 999; display: none; }
.floating-cta a { display: flex; align-items: center; gap: 10px; background: var(--fire-gradient); color: white; padding: 16px 28px; border-radius: 50px; font-weight: 700; font-size: 15px; text-transform: uppercase; letter-spacing: 1px; box-shadow: 0 8px 30px rgba(255,107,53,0.5); animation: bounce-glow 2s infinite; }
@keyframes bounce-glow { 0%, 100% { transform: translateY(0); box-shadow: 0 8px 30px rgba(255,107,53,0.5); } 50% { transform: translateY(-8px); box-shadow: 0 15px 45px rgba(255,107,53,0.7); } }
.floating-cta svg { width: 20px; height: 20px; }

/* Popups */
.purchase-popup { position: fixed; bottom: 20px; left: 20px; background: white; padding: 18px 22px; border-radius: var(--border-radius); box-shadow: 0 10px 50px rgba(0,0,0,0.2); display: flex; align-items: center; gap: 15px; z-index: 998; max-width: 360px; transform: translateX(-120%); transition: transform 0.5s cubic-bezier(0.68,-0.55,0.265,1.55); }
.purchase-popup.show { transform: translateX(0); }
.purchase-popup-icon { width: 50px; height: 50px; background: linear-gradient(135deg, #dcfce7 0%, #bbf7d0 100%); border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.purchase-popup-icon svg { width: 26px; height: 26px; color: #22c55e; }
.purchase-popup-content h4 { font-size: 14px; color: var(--primary-navy); margin-bottom: 3px; }
.purchase-popup-content p { font-size: 13px; color: #666; margin: 0; }
.purchase-popup-close { position: absolute; top: 8px; right: 10px; background: none; border: none; cursor: pointer; font-size: 20px; color: #999; }

.exit-popup-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.8); z-index: 9999; display: none; align-items: center; justify-content: center; padding: 20px; }
.exit-popup-overlay.show { display: flex; }
.exit-popup { background: white; border-radius: 20px; max-width: 480px; width: 100%; position: relative; overflow: hidden; animation: popIn 0.4s cubic-bezier(0.68,-0.55,0.265,1.55); }
@keyframes popIn { from { opacity: 0; transform: scale(0.8) translateY(50px); } to { opacity: 1; transform: scale(1) translateY(0); } }
.exit-popup-close { position: absolute; top: 15px; right: 15px; background: rgba(0,0,0,0.1); border: none; width: 40px; height: 40px; border-radius: 50%; cursor: pointer; font-size: 24px; z-index: 2; }
.exit-popup-header { background: var(--fire-gradient); padding: 35px; text-align: center; color: white; }
.exit-popup-header h3 { font-size: 28px; color: white; margin-bottom: 10px; }
.exit-popup-header p { color: rgba(255,255,255,0.9); font-size: 16px; margin: 0; }
.exit-popup-body { padding: 35px; text-align: center; }
.exit-popup-body img { max-width: 160px; margin: 0 auto 20px; }
.exit-popup-body h4 { font-size: 22px; color: var(--primary-navy); margin-bottom: 10px; }
.exit-popup-body > p { font-size: 16px; color: #666; margin-bottom: 25px; }
.exit-popup-btn { display: inline-block; background: var(--fire-gradient); color: white; padding: 18px 45px; border-radius: 50px; font-size: 18px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; box-shadow: var(--shadow-glow); }
.exit-popup-btn:hover { transform: translateY(-3px); }
.exit-popup-skip { display: block; margin-top: 18px; color: #999; font-size: 14px; cursor: pointer; }

/* Responsive */
@media (max-width: 1024px) {
    h1 { font-size: 38px; } h2 { font-size: 30px; } h3 { font-size: 24px; }
    .hero-grid, .what-is-grid, .doctor-grid, .final-cta-grid { grid-template-columns: 1fr; gap: 40px; }
    .steps-grid, .benefits-grid, .testimonials-grid, .pricing-grid, .ingredients-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .nav-menu { display: none; }
}

@media (max-width: 768px) {
    h1 { font-size: 30px; } h2 { font-size: 24px; } h3 { font-size: 20px; } p { font-size: 16.5px; }
    .section { padding: 60px 0; }
    .top-bar { display: none; }
    .header { padding: 12px 0; }
    .header-cta { padding: 10px 20px; font-size: 13px; }
    .hero { padding: 50px 0 70px; }
    .hero h1 { font-size: 32px; }
    .hero-image { order: -1; }
    .hero-image img { max-width: 320px; }
    .hero-cta-group { flex-direction: column; gap: 15px; }
    .btn-primary, .btn-secondary { width: 100%; justify-content: center; }
    .hero-trust { flex-direction: column; text-align: center; }
    .steps-grid, .benefits-grid, .testimonials-grid, .pricing-grid, .ingredients-grid { grid-template-columns: 1fr; }
    .pricing-card.popular { transform: none; order: -1; }
    .footer-grid { grid-template-columns: 1fr; text-align: center; }
    .floating-cta { display: block; bottom: 20px; right: 20px; left: auto; }
    .floating-cta a { border-radius: 50px; justify-content: center; padding: 16px 24px; width: auto; font-size: 14px; }
    .purchase-popup { left: 10px; right: 10px; bottom: 80px; max-width: none; }
    .doctor-image img { margin: 0 auto; max-width: 280px; }
    .final-cta-image img { max-width: 300px; }
}