html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    display: flex;
    flex-direction: column;
    font-family: 'Inter', sans-serif;
    background-color: #ffffff;
    color: #111827;
    -webkit-font-smoothing: antialiased;
}

main {
    flex: 1 0 auto; 
}

.footer {
    flex-shrink: 0;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    box-sizing: border-box;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: #ffffff;
    border-bottom: 1px solid #f3f4f6;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.01);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.brand {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.brand img {
    height: 32px;
    width: auto;
    display: block;
}

.navigation {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links {
    display: flex;
    gap: 24px;
}

.nav-links a {
    text-decoration: none;
    color: #4b5563;
    font-weight: 500;
    font-size: 15px;
    transition: color 0.2s ease;
}

.nav-links a:hover {
    color: #111827;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 600;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.2s ease;
    cursor: pointer;
    box-sizing: border-box;
    height: 42px;
}

.button-primary {
    background-color: #111827;
    color: #ffffff;
    border: 1px solid #111827;
}

.button-primary:hover {
    background-color: #1f2937;
    border-color: #1f2937;
}

.button-outline {
    background-color: transparent;
    color: #374151;
    border: 1px solid #d1d5db;
}

.button-outline:hover {
    background-color: #f9fafb;
    border-color: #9ca3af;
    color: #111827;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1010;
}

.menu-toggle span {
    width: 100%;
    height: 2px;
    background-color: #111827;
    border-radius: 2px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.footer {
    background-color: #f9fafb;
    border-top: 1px solid #e5e7eb;
    padding: 48px 0 32px 0;
}

.footer-brand h3 {
    margin: 0 0 8px 0;
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.025em;
}

.footer-brand p {
    margin: 0;
    color: #4b5563;
    font-size: 14px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
    margin: 36px 0;
}

.footer-links a {
    color: #6b7280;
    text-decoration: none;
    font-size: 14px;
    font-weight: 400;
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: #111827;
}

.footer-compliance {
    border-top: 1px solid #e5e7eb;
    padding-top: 24px;
    margin-top: 24px;
}

.legal-disclaimer {
    font-size: 12px;
    line-height: 1.6;
    color: #9ca3af;
    margin: 0;
}

.copyright {
    font-size: 12px;
    color: #9ca3af;
    margin: 24px 0 0 0;
}

.hero {
    padding: 80px 0;
    background-color: #ffffff;
}

.hero-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.hero-content .eyebrow {
    color: #4b5563;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0 0 12px 0;
}

.hero-content h1 {
    font-size: 48px;
    line-height: 1.15;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin: 0 0 20px 0;
}

.hero-description {
    font-size: 18px;
    line-height: 1.6;
    color: #4b5563;
    margin: 0 0 32px 0;
}

.hero-buttons {
    display: flex;
    gap: 16px;
}

.card-display {
    display: flex;
    justify-content: center;
    align-items: center;
}

.payment-card {
    width: 100%;
    max-width: 400px;
    height: 250px;
    background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
    border-radius: 16px;
    padding: 32px;
    box-sizing: border-box;
    color: #ffffff;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.card-header {
    display: flex;
    justify-content: space-between;
    font-weight: 700;
    font-size: 16px;
    letter-spacing: 0.05em;
}

.card-chip {
    width: 45px;
    height: 35px;
    background: linear-gradient(135deg, #e5e7eb 0%, #9ca3af 100%);
    border-radius: 6px;
    margin-top: 16px;
}

.card-number {
    font-size: 22px;
    font-family: monospace;
    letter-spacing: 2px;
    margin: 24px 0;
}

.card-footer {
    display: flex;
    justify-content: space-between;
}

.card-footer small {
    display: block;
    font-size: 10px;
    text-transform: uppercase;
    color: #9ca3af;
    margin-bottom: 4px;
}

.card-footer strong {
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.social-proof {
    padding: 40px 0;
    border-top: 1px solid #f3f4f6;
    border-bottom: 1px solid #f3f4f6;
    background-color: #fafafa;
}

.proof-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.proof-label {
    font-size: 13px;
    color: #6b7280;
    font-weight: 500;
    text-align: center;
}

.proof-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 48px;
    flex-wrap: wrap;
}

.proof-logo {
    height: 40px;
    width: auto;
    opacity: 0.75;
    filter: grayscale(1);
    transition: opacity 0.2s ease;
}

.proof-logo:hover {
    opacity: 1;
}

.section {
    padding: 96px 0;
}

.section-heading {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 64px auto;
}

.section-heading h2 {
    font-size: 36px;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin: 0 0 16px 0;
}

.section-heading p {
    font-size: 18px;
    color: #4b5563;
    margin: 0;
    line-height: 1.5;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.product-card {
    background-color: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    padding: 32px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.04);
}

.card-icon {
    width: 48px;
    height: 48px;
    background-color: #f3f4f6;
    color: #111827;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.product-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin: 0 0 12px 0;
}

.product-card p {
    font-size: 15px;
    line-height: 1.6;
    color: #4b5563;
    margin: 0;
}

.journey {
    background-color: #111827;
    color: #ffffff;
    padding: 96px 0;
}

.journey h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 800;
    margin: 0 0 64px 0;
    letter-spacing: -0.02em;
}

.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
}

.steps article {
    position: relative;
}

.steps span {
    font-size: 48px;
    font-weight: 800;
    color: rgba(255, 255, 255, 0.1);
    display: block;
    margin-bottom: 12px;
}

.steps h3 {
    font-size: 20px;
    font-weight: 700;
    margin: 0 0 12px 0;
}

.steps p {
    font-size: 15px;
    line-height: 1.6;
    color: #9ca3af;
    margin: 0;
}

.security-list {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.security-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 16px;
    font-weight: 600;
    color: #374151;
    background-color: #f9fafb;
    padding: 16px 24px;
    border-radius: 30px;
    border: 1px solid #e5e7eb;
}

.security-icon {
    color: #10b981;
}

.business-section {
    background-color: #f3f4f6;
    padding: 80px 0;
    text-align: center;
}

.business-section h2 {
    font-size: 32px;
    font-weight: 800;
    margin: 0 0 16px 0;
    letter-spacing: -0.02em;
}

.business-section p {
    font-size: 18px;
    color: #4b5563;
    max-width: 600px;
    margin: 0 auto 32px auto;
    line-height: 1.6;
}

.partner-section {
    padding: 80px 0;
    text-align: center;
    background-color: #ffffff;
    border-top: 1px solid #e5e7eb;
}

.partner-section h2 {
    font-size: 28px;
    font-weight: 700;
    margin: 0 0 16px 0;
}

.partner-section p {
    font-size: 16px;
    color: #4b5563;
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
}

@media (max-width: 992px) {
    .hero-layout {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 64px;
    }

    .hero-buttons {
        justify-content: center;
    }

    .product-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .steps {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .navigation {
        position: fixed;
        top: 0;
        right: -100%; 
        width: 300px;
        height: 100vh;
        background: #ffffff;
        box-shadow: -8px 0 32px rgba(0, 0, 0, 0.06);
        flex-direction: column;
        align-items: flex-start;
        justify-content: flex-start;
        padding: 96px 32px 40px 32px;
        gap: 40px;
        box-sizing: border-box;
        transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .navigation.is-active {
        right: 0;
    }

    .nav-links {
        flex-direction: column;
        width: 100%;
        gap: 12px;
    }

    .nav-links a {
        font-size: 16px;
        display: block;
        padding: 12px 0;
        border-bottom: 1px solid #f3f4f6;
        color: #111827;
    }

    .header-actions {
        flex-direction: column;
        width: 100%;
        gap: 12px;
        margin-top: auto; 
    }

    .header-actions .button {
        width: 100%;
        text-align: center;
    }

    .menu-toggle.is-active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    .menu-toggle.is-active span:nth-child(2) {
        opacity: 0;
    }
    .menu-toggle.is-active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px 12px;
    }

    .hero-content h1 {
        font-size: 36px;
    }

    .section {
        padding: 64px 0;
    }

    .section-heading h2 {
        font-size: 28px;
    }
}

@media (max-width: 480px) {
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .proof-logos {
        gap: 24px;
    }
    
    .proof-logo {
        height: 32px;
    }
}