:root {
    --primary-color: #0f172a; 
    --text-color: #334155;
    --accent-color: #4F46E5; /* Tech Blue/Indigo */
    --accent-hover: #4338ca;
    --neon-blue: #00f3ff;
    --bg-color: #ffffff;
    --light-bg: #f8fafc;
    --gradient-hero: linear-gradient(135deg, #f0f9ff 0%, #e0e7ff 100%);
    --card-shadow: 0 10px 40px -10px rgba(0,0,0,0.08);
}

body { font-family: 'Inter', sans-serif; margin: 0; padding: 0; color: var(--text-color); background-color: var(--bg-color); line-height: 1.6; overflow-x: hidden; }
h1, h2, h3 { color: var(--primary-color); margin-top: 0; font-weight: 800; letter-spacing: -0.02em; }
a { text-decoration: none; }
.container { width: 90%; max-width: 1200px; margin: 0 auto; }

/* NAVIGATION */
.navbar { padding: 15px 0; background: rgba(255, 255, 255, 0.85); backdrop-filter: blur(12px); position: sticky; top: 0; z-index: 1000; border-bottom: 1px solid rgba(0,0,0,0.04); }
.nav-container { display: flex; justify-content: space-between; align-items: center; }
.logo { display: flex; align-items: center; gap: 12px; font-weight: 800; font-size: 1.3rem; color: #000; }
.logo img { height: 32px; width: auto; }
.nav-links { list-style: none; display: flex; gap: 30px; align-items: center; }
.nav-links a { color: var(--primary-color); font-weight: 600; font-size: 0.95rem; transition: color 0.3s; }
.nav-links a:hover { color: var(--accent-color); }
.btn-nav { background: var(--primary-color); color: #fff !important; padding: 10px 24px; border-radius: 50px; transition: transform 0.2s, box-shadow 0.2s; }
.btn-nav:hover { transform: translateY(-2px); box-shadow: 0 5px 15px rgba(0,0,0,0.2); }

/* HERO */
.hero { padding: 120px 0 100px 0; background: var(--gradient-hero); min-height: 75vh; display: flex; align-items: center; position: relative; overflow: hidden; }
.hero-content { display: flex; align-items: center; justify-content: space-between; gap: 60px; position: relative; z-index: 1; }
.hero-text { flex: 1; min-width: 320px; }
.partnership-badge { background: rgba(255,255,255,0.9); padding: 8px 16px; border-radius: 50px; display: inline-block; margin-bottom: 20px; font-weight: 600; color: #333; box-shadow: 0 4px 6px rgba(0,0,0,0.05); }
.highlight-text { background: linear-gradient(120deg, #4F46E5 0%, #9333ea 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero-text h1 { font-size: 3.5rem; line-height: 1.1; margin-bottom: 10px; }
.sub-headline { font-size: 1.5rem; color: var(--accent-color); margin-bottom: 20px; }
.hero-desc { font-size: 1.2rem; color: #475569; margin-bottom: 10px; }
.hero-subdesc { font-size: 0.95rem; opacity: 0.8; margin-bottom: 30px; }
.cta-buttons { display: flex; gap: 15px; margin-bottom: 20px; }
.btn-store img { height: 52px; transition: transform 0.2s; }
.btn-store:hover img { transform: translateY(-3px) scale(1.02); }
.promo-banner { margin-top: 15px; font-size: 0.9rem; color: var(--accent-color); }
.hero-image { flex: 1; text-align: center; }
.hero-image img { max-width: 85%; height: auto; border-radius: 40px; box-shadow: 0 30px 60px -15px rgba(0, 0, 0, 0.2); transform: rotateY(-8deg) rotateX(4deg); transition: transform 0.5s ease; }
.hero-image:hover img { transform: rotateY(0) rotateX(0) scale(1.02); }

/* TRUST & TESTIMONIALS */
.trust-signals { background: #f8fafc; padding: 40px 0; border-bottom: 1px solid #e2e8f0; }
.stats-row { display: flex; justify-content: space-around; flex-wrap: wrap; text-align: center; gap: 20px; }
.stat-number { display: block; font-size: 2rem; font-weight: 800; color: var(--accent-color); }
.stat-label { color: #64748b; }
.testimonials { padding: 80px 0; background: #fff; }
.testimonial-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
.testimonial { background: #f8fafc; padding: 30px; border-radius: 20px; }
.quote { font-style: italic; margin: 15px 0; color: #334155; }
.review-cta { text-align: center; margin-top: 30px; }
.review-cta a { color: var(--accent-color); font-weight: 600; }

/* COMPARISON */
.comparison { padding: 80px 0; background: #fff; }
.comparison-table-wrapper { overflow-x: auto; margin-bottom: 30px; box-shadow: 0 10px 30px rgba(0,0,0,0.05); border-radius: 12px; }
table { width: 100%; border-collapse: collapse; min-width: 600px; }
thead { background: #0f172a; color: white; }
th, td { padding: 15px; text-align: left; border-bottom: 1px solid #e2e8f0; }
.th-highlight { background: var(--accent-color); }
.td-bold { font-weight: bold; }
.td-good { background: #f0fdf4; color: #166534; font-weight: 600; }
.td-bad { color: #991b1b; }
.td-warn { color: #854d0e; }
.td-neutral { color: #334155; }
.comparison-cta { text-align: center; margin-top: 30px; }

/* FEATURES (BENTO GRID - HIGH TECH) */
.features { padding: 100px 0; background: #fff; }
.section-header { text-align: center; max-width: 700px; margin: 0 auto 60px; }
.carousel-container { width: 100%; overflow: hidden; margin-bottom: 80px; position: relative; padding: 30px 0; }
.carousel-track { display: flex; gap: 30px; width: max-content; animation: scroll 35s linear infinite; }
.carousel-slide { width: 200px; height: 400px; flex-shrink: 0; border-radius: 24px; border: 6px solid #fff; box-shadow: 0 15px 35px rgba(0,0,0,0.1); overflow: hidden; background: #f1f5f9; }
.carousel-slide img { width: 100%; height: 100%; object-fit: cover; object-position: top center; }
@keyframes scroll { 0% { transform: translateX(0); } 100% { transform: translateX(-920px); } }

/* Bento Layout */
.bento-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; grid-template-rows: auto auto auto; gap: 25px; }
.card-security { grid-column: span 1; }
.card-spend { grid-column: span 2; grid-row: span 2; }
.card-swap { grid-column: span 1; }
.card-rewards { grid-column: span 1; }
.card-vkc { grid-column: span 2; } /* Wide Box */

.bento-card { 
    background: rgba(255, 255, 255, 0.8); /* Glassy feel */
    backdrop-filter: blur(12px);
    padding: 35px; border-radius: 20px; 
    box-shadow: var(--card-shadow); 
    border: 1px solid rgba(226, 232, 240, 0.8);
    display: flex; flex-direction: column; overflow: hidden; 
    transition: all 0.3s ease;
}
.bento-card:hover { transform: translateY(-5px); box-shadow: 0 20px 50px -10px rgba(79, 70, 229, 0.15); border-color: rgba(79, 70, 229, 0.3); }

.icon-wrapper { width: 50px; height: 50px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 1.3rem; color: #fff; margin-bottom: 20px; }
.gradient-blue { background: linear-gradient(135deg, #3b82f6, #2563eb); }
.gradient-purple { background: linear-gradient(135deg, #a855f7, #7c3aed); }
.gradient-green { background: linear-gradient(135deg, #10b981, #059669); }
.gradient-orange { background: linear-gradient(135deg, #f59e0b, #d97706); }
.gradient-dark { background: linear-gradient(135deg, #334155, #0f172a); color: #fff; }
.feature-link { margin-top: auto; color: var(--accent-color); font-weight: 600; display: inline-flex; align-items: center; gap: 8px; }

/* Premium Spend Box (Dark Tech) */
.premium-dark-theme { background: linear-gradient(145deg, #0f172a, #020617); color: #fff; border: 1px solid #334155; }
.gradient-gold { background: linear-gradient(135deg, #FCD34D, #D97706); color: #000; box-shadow: 0 0 15px rgba(217, 119, 6, 0.4); }
.premium-dark-theme h3 { color: #fff; margin: 0; }
.premium-text { color: #94a3b8 !important; }
.spend-header { display: flex; align-items: center; gap: 15px; margin-bottom: 15px; }
.spend-header .icon-wrapper { margin-bottom: 0; width: 40px; height: 40px; font-size: 1.1rem; }
.spend-grid-internal { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 15px; margin: 20px 0; }
.dark-item { background: rgba(255, 255, 255, 0.05); padding: 12px; border-radius: 12px; display: flex; align-items: center; gap: 12px; border: 1px solid rgba(255, 255, 255, 0.05); transition: background 0.3s; }
.dark-item:hover { background: rgba(255, 255, 255, 0.1); border-color: rgba(255, 255, 255, 0.2); }
.highlight-item { background: linear-gradient(90deg, rgba(217, 119, 6, 0.1), transparent); border-left: 2px solid #D97706; }
.spend-icon { width: 32px; height: 32px; background: #1e293b; border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 0.9rem; }
.highlight-item .spend-icon { color: #FCD34D; }
.dark-item strong { display: block; font-size: 0.9rem; color: #f1f5f9; }
.tiny-desc { display: block; font-size: 0.75rem; color: #64748b; margin-top: 2px; }
.gold-link { color: #FCD34D !important; margin-top: 20px; }

/* VKC Card Styles */
.card-vkc { 
    background: radial-gradient(circle at right center, #f8fafc, #ffffff); 
    display: flex; flex-direction: row; align-items: center; justify-content: space-between; position: relative; 
}
.vkc-content { flex: 1; z-index: 2; padding-right: 20px; }
.vkc-image-container { flex: 1; display: flex; justify-content: flex-end; align-items: center; }
.vkc-img { 
    width: 220px; height: auto; 
    filter: drop-shadow(0 20px 40px rgba(0,0,0,0.15)); 
    transform: rotate(-10deg) translateX(20px); 
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1); 
}
.card-vkc:hover .vkc-img { transform: rotate(0deg) translateX(0) scale(1.05); }

/* PREMIUM CARDS */
.widget-section { padding: 100px 0; background: var(--light-bg); }
.premium-cards-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 40px; margin-bottom: 80px; }
.premium-card { border-radius: 24px; padding: 40px 35px; position: relative; overflow: visible; color: #fff; display: flex; flex-direction: column; box-shadow: 0 25px 50px -12px rgba(0,0,0,0.3); transition: transform 0.3s ease; }
.premium-card:hover { transform: translateY(-8px); }
.card-header-flex { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-bottom: 30px; }
.card-text-content { flex: 1; z-index: 2; }
.status-pill { display: inline-block; padding: 6px 12px; border-radius: 8px; font-size: 0.75rem; font-weight: 800; text-transform: uppercase; margin-bottom: 12px; }
.black-card { background: radial-gradient(circle at top right, #333 0%, #09090b 100%); border: 1px solid #3f3f46; }
.gold-pill { background: linear-gradient(to right, #fbbf24, #d97706); color: #000; box-shadow: 0 0 15px rgba(251, 191, 36, 0.4); }
.blue-card { background: radial-gradient(circle at top right, #1e40af 0%, #0f172a 100%); border: 1px solid #3b82f6; }
.blue-pill { background: #3b82f6; color: #fff; box-shadow: 0 0 15px rgba(59, 130, 246, 0.5); }
.premium-card h3 { font-size: 1.7rem; color: #fff; margin-bottom: 5px; }
.card-img-wrapper { flex-shrink: 0; width: 120px; display: flex; justify-content: center; perspective: 1000px; }
.card-visual { width: 100%; height: auto; filter: drop-shadow(0 10px 20px rgba(0,0,0,0.5)); transform: rotateY(-10deg) rotateX(5deg); transition: transform 0.4s ease; }
.premium-card:hover .card-visual { transform: rotateY(0) rotateX(0) scale(1.1); }
.card-benefits { list-style: none; padding: 0; margin-bottom: 35px; flex-grow: 1; }
.card-benefits li { margin-bottom: 12px; display: flex; align-items: flex-start; gap: 12px; font-size: 0.95rem; }
.widget-wrapper { background: #f8fafc; padding: 40px; border-radius: 24px; border: 2px dashed #cbd5e1; }
.zypto-widget-container { background: #fff; border-radius: 24px; padding: 10px; overflow: hidden; }

/* REFERRAL SECTION & CALCULATOR */
.referral-program { padding: 80px 0; background: #f0f9ff; }
.earnings-calculator { background: white; padding: 30px; border-radius: 20px; box-shadow: 0 10px 30px rgba(0,0,0,0.1); max-width: 600px; margin: 0 auto 50px; }
.calculator-inputs { display: flex; gap: 15px; flex-wrap: wrap; justify-content: space-between; margin-bottom: 25px; }
.input-group { flex: 1; min-width: 140px; text-align: left; }
.input-group label { display: block; font-size: 0.85rem; font-weight: 600; color: #64748b; margin-bottom: 8px; }
.input-group input { width: 100%; padding: 12px; border: 1px solid #e2e8f0; border-radius: 10px; font-size: 1rem; font-weight: 600; color: #0f172a; transition: border-color 0.2s; }
.input-group input:focus { outline: none; border-color: var(--accent-color); box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1); }
.calculator-result { text-align: center; background: #ecfdf5; padding: 20px; border-radius: 12px; border: 1px solid #10b981; }
.result-amount { font-size: 2.5rem; font-weight: 800; color: #059669; margin: 10px 0; }
.referral-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 30px; margin-bottom: 50px; }
.text-center { text-align: center; }
.feature .icon { font-size: 2rem; display: block; margin-bottom: 10px; }
.btn-cta { padding: 20px 50px; font-size: 1.2rem; font-weight: bold; }

/* ABOUT & DISCLOSURE */
.about-transparency { padding: 60px 0; background: #fff; border-top: 1px solid #f1f5f9; }
.disclosure-box { background: #fffbeb; padding: 20px; border-left: 4px solid #f59e0b; margin-top: 30px; }

/* BUTTONS */
.btn-primary { background: var(--accent-color); color: #fff; padding: 16px 45px; text-decoration: none; border-radius: 12px; display: inline-block; font-weight: 700; transition: all 0.3s; }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-3px); box-shadow: 0 15px 30px -5px rgba(79, 70, 229, 0.4); }
.full-width { display: block; width: 100%; box-sizing: border-box; text-align: center; }

/* FOOTER */
footer { background: #0f172a; color: #cbd5e1; padding: 60px 0 30px; }
.footer-content { text-align: center; }
.footer-brand { font-size: 1.5rem; font-weight: 800; color: #fff; margin-bottom: 10px; }
.footer-links a { color: #94a3b8; margin: 0 15px; font-size: 0.9rem; }
.footer-links a:hover { color: #fff; }
.copyright { margin-top: 40px; font-size: 0.8rem; color: #64748b; }

/* MODALS */
.modal { display: none; position: fixed; z-index: 2000; left: 0; top: 0; width: 100%; height: 100%; background-color: rgba(15, 23, 42, 0.85); backdrop-filter: blur(5px); overflow-y: auto; }
.modal-content { background: #fff; margin: 15vh auto; padding: 30px 25px; border-radius: 20px; width: 85%; max-width: 340px; text-align: center; position: relative; box-shadow: 0 25px 60px rgba(0,0,0,0.4); }
.close, .close-popup { position: absolute; top: 10px; right: 15px; font-size: 32px; cursor: pointer; color: #94a3b8; padding: 5px; }
.qr-img { width: 100%; max-width: 150px; height: auto; border: 1px solid #e2e8f0; padding: 8px; border-radius: 12px; margin: 15px 0; }
.exit-modal { z-index: 9999; }
.exit-content { max-width: 500px; padding: 40px; text-align: center; margin: 10% auto; }
.exit-warn { color: #ef4444; font-weight: bold; font-size: 1.1rem; }
.exit-benefits { text-align: left; margin: 20px 0 30px 20px; color: #334155; }
.exit-benefits li { margin-bottom: 10px; }

/* MOBILE RESPONSIVENESS */
@media (max-width: 768px) {
    .hero-text h1 { font-size: 2.5rem; }
    .hero-content { flex-direction: column; text-align: center; }
    .nav-links { display: none; }
    .cta-buttons { justify-content: center; }
    .hero-image img { transform: none; margin-top: 50px; }
    
    .bento-grid { grid-template-columns: 1fr; grid-template-rows: auto; }
    .card-spend { grid-column: span 1; grid-row: span 1; }
    
    /* VKC Mobile Fix */
    .card-vkc { 
        grid-column: span 1; 
        flex-direction: column; 
        text-align: center; 
        padding-bottom: 30px; /* Space for image */
    }
    .vkc-content { padding-right: 0; margin-bottom: 20px; }
    .vkc-img { 
        width: 80%; max-width: 250px; 
        transform: rotate(0); 
        margin-bottom: 0; 
    }
    
    .premium-cards-grid { grid-template-columns: 1fr; }
    .carousel-container { display: none; }
    .referral-features { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
    .modal-content { margin: 20vh auto; }
    .card-header-flex { flex-direction: column-reverse; align-items: flex-start; }
    .card-img-wrapper { width: 140px; margin-bottom: 15px; align-self: center; }
    .card-visual { transform: none; }
}