:root {
    --primary-color: #1a73e8;  /* Modern blue color */
    --primary-dark: #1557b0;
    --primary-light: #4285f4;
}

/* Page Header */
.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, #2c5282 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
    color: white;
}

.page-header p {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* Mailbox Services Section */
.mailbox-services {
    padding: 5rem 0;
    background: #f8f9fa;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.service-card {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
}

.service-card img {
    width: 120px;
    height: 120px;
    object-fit: cover;
    border-radius: 50%;
    margin: 0 auto 1.5rem;
    padding: 1.5rem;
    background: #f8f9fa;
    border: 2px solid var(--primary-color);
}

.service-card h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.service-card p {
    color: #666;
    margin-bottom: 1.5rem;
}

.service-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
    flex-grow: 1;
}

.service-card ul li {
    padding: 0.5rem 0;
    color: #444;
    border-bottom: 1px solid #eee;
}

.service-card ul li:last-child {
    border-bottom: none;
}

/* Features Section */
.mailbox-features {
    padding: 5rem 0;
    background: white;
}

.mailbox-features h2 {
    text-align: center;
    color: var(--primary-color);
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 3rem;
    padding-bottom: 0.5rem;
    position: relative;
}

.mailbox-features h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 2px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.feature {
    text-align: center;
}

.feature i {
    width: 90px;
    height: 90px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.25rem;
    margin: 0 auto 1.5rem;
    transition: all 0.3s ease;
    border: 4px solid #e9ecef;
}

.feature:hover i {
    transform: scale(1.1);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.feature h4 {
    color: #2d3748;
    margin-bottom: 0.75rem;
    font-size: 1.3rem;
    font-weight: 600;
}

.feature p {
    color: #4a5568;
    font-size: 1rem;
    line-height: 1.5;
}

/* Pricing Section */
.pricing-section {
    padding: 5rem 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.pricing-section h2 {
    text-align: center;
    color: var(--primary-color);
    font-size: 2rem;
    margin-bottom: 3rem;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.pricing-card.featured {
    transform: scale(1.05);
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
    border: 2px solid var(--primary-color);
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-5px);
}

.pricing-card h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.pricing-card .price {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 1.5rem;
}

.pricing-card .price span {
    font-size: 1rem;
    font-weight: normal;
    color: #666;
}

.pricing-card ul {
    list-style: none;
    padding: 0;
    margin: 0 0 2rem;
}

.pricing-card ul li {
    padding: 0.75rem 0;
    color: #444;
    border-bottom: 1px solid #eee;
}

.pricing-card ul li:last-child {
    border-bottom: none;
}

.pricing-card .btn-primary {
    background: var(--primary-color);
    color: white;
    padding: 0.75rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    display: inline-block;
    transition: all 0.3s ease;
}

.pricing-card .btn-primary:hover {
    background: #2c5282;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

/* Responsive Design */
@media (max-width: 1200px) {
    .service-grid,
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .pricing-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 0 1rem;
    }

    .pricing-card.featured {
        transform: none;
    }

    .pricing-card.featured:hover {
        transform: translateY(-5px);
    }

    .page-header h1 {
        font-size: 2rem;
    }

    .service-grid,
    .features-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .service-card,
    .feature,
    .pricing-card {
        padding: 1.5rem;
    }

    .service-card img {
        width: 100px;
        height: 100px;
    }
}