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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #ffffff 0%, #f5f7fa 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #333;
}

.landing-container {
    width: 100%;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.landing-content {
    max-width: 900px;
    width: 100%;
    text-align: center;
}

.logo-container {
    margin-bottom: 40px;
    animation: fadeInDown 0.8s ease-out;
}

.citi-logo {
    width: auto;
}

.welcome-section {
    margin-bottom: 50px;
    animation: fadeIn 1s ease-out;
}

.welcome-title {
    font-size: 42px;
    font-weight: 300;
    color: #1a1a1a;
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

.welcome-subtitle {
    font-size: 18px;
    color: #666;
    font-weight: 400;
}

.options-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
    animation: fadeInUp 1s ease-out;
}

.option-card {
    background: white;
    border-radius: 12px;
    padding: 40px 30px;
    text-decoration: none;
    color: inherit;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    border: 2px solid transparent;
}

.option-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #0047AB 0%, #0066CC 100%);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.option-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0, 71, 171, 0.15);
    border-color: #0047AB;
}

.card-content {
    position: relative;
}

.card-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 24px;
    color: #0047AB;
}

.card-icon svg {
    width: 100%;
    height: 100%;
}

.card-title {
    font-size: 26px;
    font-weight: 500;
    color: #1a1a1a;
    margin-bottom: 12px;
    letter-spacing: -0.3px;
}

.card-title sup {
    font-size: 14px;
    top: -0.8em;
}

.card-description {
    font-size: 15px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 20px;
    min-height: 48px;
}

.card-arrow {
    display: inline-block;
    font-size: 24px;
    color: #0047AB;
    font-weight: 300;
    transition: transform 0.3s ease;
}

.option-card:hover .card-arrow {
    transform: translateX(8px);
}

.footer-links {
    margin-bottom: 20px;
    font-size: 14px;
    animation: fadeIn 1.2s ease-out;
}

.footer-link {
    color: #0047AB;
    text-decoration: none;
    transition: color 0.2s ease;
    padding: 0 8px;
}

.footer-link:hover {
    color: #0066CC;
    text-decoration: underline;
}

.separator {
    color: #ccc;
    padding: 0 4px;
}

.copyright {
    font-size: 12px;
    color: #999;
    line-height: 1.6;
    max-width: 800px;
    margin: 0 auto;
    animation: fadeIn 1.4s ease-out;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .welcome-title {
        font-size: 32px;
    }

    .welcome-subtitle {
        font-size: 16px;
    }

    .options-container {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .option-card {
        padding: 30px 20px;
    }

    .card-title {
        font-size: 22px;
    }

    .card-description {
        font-size: 14px;
        min-height: auto;
    }

    .citi-logo {
    }

    .footer-links {
        font-size: 13px;
    }

    .copyright {
        font-size: 11px;
    }
}

@media (max-width: 480px) {
    .landing-container {
        padding: 15px;
    }

    .welcome-title {
        font-size: 28px;
    }

    .card-icon {
        width: 40px;
        height: 40px;
    }

    .footer-link {
        display: block;
        padding: 4px 0;
    }

    .separator {
        display: none;
    }
}