* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

:root {
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --secondary-color: #7c3aed;
    --accent-color: #06b6d4;
    --text-color: #e2e8f0;
    --text-light: #94a3b8;
    --text-muted: #64748b;
    --bg-dark: #020617;
    --bg-darker: #0f172a;
    --bg-card: #1e293b;
    --bg-hover: #334155;
    --border-color: #334155;
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background: var(--bg-dark);
    overflow-x: hidden;
    padding-top: 80px;
}

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

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(2, 6, 23, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text-color);
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

.logo-icon {
    font-size: 2rem;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, #818cf8, #c084fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.6rem 1.2rem;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid transparent;
}

.nav-link svg {
    transition: all 0.3s ease;
}

.nav-link:hover {
    color: var(--text-color);
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.15), rgba(124, 58, 237, 0.15));
    border-color: rgba(79, 70, 229, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.2);
}

.nav-link:hover svg {
    transform: scale(1.1);
    filter: drop-shadow(0 0 8px rgba(79, 70, 229, 0.6));
}

.nav-link:active {
    transform: translateY(0);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--text-color);
    border-radius: 3px;
    transition: all 0.3s ease;
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Hero Section */
.hero {
    padding: 100px 0;
    position: relative;
    overflow: hidden;
    background: radial-gradient(ellipse at top left, #1e293b 0%, var(--bg-darker) 50%, var(--bg-dark) 100%);
}

.hero-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    position: relative;
    z-index: 10;
}

.hero-title {
    font-size: 52px;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 24px;
    background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -1.5px;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 40px;
    line-height: 1.7;
}

.hero-image {
    position: relative;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--border-color);
}

.hero-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

.hero-image:hover img {
    transform: scale(1.05);
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.btn {
    display: inline-block;
    padding: 16px 40px;
    border-radius: 12px;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: none;
    font-size: 16px;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    box-shadow: 0 4px 16px rgba(79, 70, 229, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(79, 70, 229, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--text-color);
    border: 2px solid var(--border-color);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    border-color: var(--primary-color);
    background: rgba(79, 70, 229, 0.1);
    transform: translateY(-3px);
}

.btn-small {
    padding: 12px 24px;
    font-size: 14px;
    width: 100%;
    position: relative;
    z-index: 2;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.4);
}

.btn-small:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(79, 70, 229, 0.5);
}

.hero-info {
    color: var(--text-light);
    font-size: 14px;
    position: relative;
}

/* Features Section */
.features {
    padding: 100px 0;
    background: var(--bg-darker);
}

.section-title {
    font-size: 42px;
    font-weight: 900;
    text-align: center;
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 17px;
    margin-bottom: 70px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 28px;
}

.feature-card {
    text-align: center;
    padding: 40px 28px;
    border-radius: 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-1);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(79, 70, 229, 0.3);
}

.feature-icon {
    font-size: 52px;
    margin-bottom: 20px;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-color);
}

.feature-card p {
    color: var(--text-muted);
    font-size: 15px;
    line-height: 1.6;
}

/* Denominasi Section */
.denominasi {
    padding: 100px 0;
    background: var(--bg-dark);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
    margin-bottom: 60px;
}

@media (min-width: 1200px) {
    .products-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.product-card {
    background: var(--bg-card);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.product-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.1) 0%, rgba(124, 58, 237, 0.1) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.product-card:hover::after {
    opacity: 1;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    border-color: rgba(79, 70, 229, 0.5);
}

.product-image {
    width: 100%;
    height: 140px;
    overflow: hidden;
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    position: relative;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.product-info {
    padding: 18px;
    position: relative;
    z-index: 1;
}

.product-info h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-color);
    line-height: 1.3;
}

.product-desc {
    color: var(--text-muted);
    font-size: 13px;
    margin-bottom: 12px;
    font-weight: 500;
}

.product-price {
    font-size: 20px;
    font-weight: 800;
    background: linear-gradient(135deg, #818cf8, #c084fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
    display: block;
}

.product-price span {
    font-size: 13px;
    font-weight: 400;
    color: var(--text-muted);
}

/* Promo Banner */
.promo-banner {
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #c026d3 100%);
    border-radius: 24px;
    padding: 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 12px 40px rgba(79, 70, 229, 0.4);
}

.promo-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.promo-content {
    color: white;
    position: relative;
    z-index: 1;
}

.promo-label {
    font-weight: 800;
    font-size: 17px;
    margin-right: 8px;
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    padding: 4px 12px;
    border-radius: 8px;
}

.promo-text {
    font-size: 19px;
    font-weight: 600;
    margin-top: 8px;
    display: block;
}

.btn-promo {
    background: white;
    color: var(--primary-color);
    padding: 14px 32px;
    font-weight: 800;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    position: relative;
    z-index: 1;
}

.btn-promo:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

/* Testimonials Section */
.testimonials {
    padding: 100px 0;
    background: var(--bg-darker);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 28px;
}

.testimonial-card {
    background: var(--bg-card);
    padding: 32px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--primary-color);
    transition: all 0.3s ease;
    position: relative;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 16px;
    left: 24px;
    font-size: 60px;
    font-weight: 900;
    color: rgba(79, 70, 229, 0.1);
    line-height: 1;
}

.testimonial-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-left-width: 6px;
}

.testimonial-text {
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 16px;
    font-style: italic;
    color: var(--text-light);
    position: relative;
    z-index: 1;
}

.testimonial-author {
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 700;
}

/* FAQ Section */
.faq {
    padding: 100px 0;
    background: var(--bg-dark);
}

.faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-card);
    padding: 28px 32px;
    margin-bottom: 20px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    cursor: pointer;
}

.faq-item:hover {
    border-color: var(--primary-color);
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
}

.faq-item h3 {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-color);
    position: relative;
    padding-left: 28px;
}

.faq-item h3::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: 800;
    font-size: 20px;
}

/* Footer */
.footer {
    background: var(--bg-dark);
    border-top: 1px solid var(--border-color);
    color: white;
    padding: 60px 0 40px;
    text-align: center;
}

.footer-disclaimer {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 20px;
    line-height: 1.7;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.footer-copyright {
    font-size: 14px;
    margin-bottom: 16px;
    color: var(--text-light);
    font-weight: 500;
}

.footer-links {
    font-size: 14px;
}

.footer-links a {
    color: var(--text-light);
    text-decoration: none;
    transition: all 0.3s ease;
    padding: 0 4px;
}

.footer-links a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 768px) {
    body {
        padding-top: 70px;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 280px;
        height: calc(100vh - 70px);
        background: rgba(15, 23, 42, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        padding: 2rem 1.5rem;
        gap: 0.75rem;
        border-left: 1px solid rgba(255, 255, 255, 0.1);
        transition: right 0.3s ease;
        align-items: stretch;
    }

    .nav-menu.active {
        right: 0;
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
    }

    .nav-link {
        font-size: 1rem;
        width: 100%;
        padding: 1rem 1.5rem;
        justify-content: flex-start;
        background: rgba(255, 255, 255, 0.05);
        border: 1px solid rgba(255, 255, 255, 0.1);
    }

    .nav-link svg {
        width: 20px;
        height: 20px;
    }

    .nav-link:hover {
        transform: translateX(5px);
        background: linear-gradient(135deg, rgba(79, 70, 229, 0.2), rgba(124, 58, 237, 0.2));
    }

    .hero {
        padding: 60px 0;
    }
    
    .hero-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .hero-content {
        text-align: center;
    }
    
    .hero-title {
        font-size: 36px;
        letter-spacing: -0.5px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .features {
        padding: 60px 0;
    }
    
    .denominasi {
        padding: 60px 0;
    }
    
    .testimonials {
        padding: 60px 0;
    }
    
    .faq {
        padding: 60px 0;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .promo-banner {
        padding: 30px 24px;
        text-align: center;
        justify-content: center;
    }
    
    .btn {
        width: 100%;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }
    
    .section-title {
        font-size: 28px;
    }
}