/* Modern Professional Styles for MarbleCraft Global */

body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.7;
    color: #1a202c;
    background-color: #f7fafc;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

main {
    flex: 1;
}

footer {
    margin-top: auto;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #1a202c 0%, #2d3748 50%, #4a5568 100%);
    color: #ffffff;
    position: relative;
    overflow: hidden;
    padding: 120px 0;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(0,0,0,0.05)"/><circle cx="75" cy="75" r="1" fill="rgba(0,0,0,0.05)"/><circle cx="50" cy="10" r="0.5" fill="rgba(0,0,0,0.05)"/></pattern></defs><rect width="100" height="100" fill="url("#grain#grain")"/></svg>');
    opacity: 0.1;
}

.hero-section .container {
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 2rem;
    text-shadow: 0 4px 20px rgba(0,0,0,0.3);
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.375rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
    line-height: 1.6;
    font-weight: 400;
    max-width: 600px;
}

.hero-buttons .btn {
    padding: 1rem 2.5rem;
    font-weight: 600;
    border-radius: 12px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 1.1rem;
    letter-spacing: 0.025em;
}

.hero-buttons .btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.hero-icon {
    font-size: 6rem;
    opacity: 0.8;
}

.min-vh-75 {
    min-height: 75vh;
}

/* Features Section */
.features-section {
    background: #ffffff;
    padding: 100px 0;
    border-top: 1px solid #e2e8f0;
}

.section-title {
    font-size: 3rem;
    font-weight: 800;
    color: #1a202c;
    margin-bottom: 1.5rem;
    letter-spacing: -0.025em;
}

.section-subtitle {
    font-size: 1.25rem;
    color: #718096;
    margin-bottom: 0;
    font-weight: 400;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.feature-card {
    text-align: center;
    padding: 3rem 2rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: #ffffff;
    border-radius: 16px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    border: 1px solid #e2e8f0;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.feature-icon {
    font-size: 3.5rem;
    color: #3182ce;
    margin-bottom: 2rem;
    display: block;
}

.feature-card h4 {
    font-weight: 700;
    margin-bottom: 1rem;
    color: #1a202c;
    font-size: 1.25rem;
}

/* Product Cards */
.product-card {
    background: #ffffff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    height: 100%;
    border: 1px solid #e2e8f0;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.product-image {
    position: relative;
    overflow: hidden;
    height: 250px;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.product-info {
    padding: 2rem;
}

.product-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: #1a202c;
    margin-bottom: 0.75rem;
    line-height: 1.3;
}

.product-description {
    color: #718096;
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

.product-price .price {
    font-size: 1.5rem;
    font-weight: 800;
    color: #3182ce;
    letter-spacing: -0.025em;
}

/* Category Cards */
.category-card {
    background: #ffffff;
    border-radius: 16px;
    padding: 3rem 2rem;
    text-align: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    height: 100%;
    border: 1px solid #e2e8f0;
}

.category-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.category-icon {
    font-size: 3.5rem;
    color: #3182ce;
    margin-bottom: 2rem;
    display: block;
}

.category-title {
    font-weight: 700;
    margin-bottom: 1rem;
    color: #1a202c;
    font-size: 1.25rem;
}

.category-description {
    color: #718096;
    margin-bottom: 1.5rem;
    line-height: 1.5;
    font-size: 0.95rem;
}

/* Call to Action Section */
.cta-section {
    background: linear-gradient(135deg, #1a202c 0%, #2d3748 50%, #4a5568 100%);
    color: white;
    padding: 100px 0;
}

.cta-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    letter-spacing: -0.025em;
}

.cta-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
    font-weight: 400;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons .btn {
    padding: 1rem 2.5rem;
    font-weight: 600;
    border-radius: 12px;
    border-width: 2px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 1.1rem;
    letter-spacing: 0.025em;
}

.cta-buttons .btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

/* Navigation */
.navbar-brand {
    font-weight: 800;
    font-size: 1.75rem;
    letter-spacing: -0.025em;
}

.btn {
    border-radius: 12px;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Footer */
.footer {
    background: linear-gradient(135deg, #1a202c 0%, #2d3748 100%);
    color: #ffffff;
    padding: 60px 0 30px;
    margin-top: 80px;
}

/* Form Styles */
.form-control {
    border-radius: 12px;
    border: 2px solid #e2e8f0;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.form-control:focus {
    border-color: #3182ce;
    box-shadow: 0 0 0 0.2rem rgba(49, 130, 206, 0.25);
    transform: translateY(-1px);
}

/* Button Colors */
.btn-primary {
    background: linear-gradient(135deg, #3182ce 0%, #2c5282 100%);
    border-color: #3182ce;
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #2c5282 0%, #2a4365 100%);
    border-color: #2c5282;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(49, 130, 206, 0.4);
}

.btn-success {
    background: linear-gradient(135deg, #48bb78 0%, #38a169 100%);
    border-color: #48bb78;
    color: white;
}

.btn-success:hover {
    background: linear-gradient(135deg, #38a169 0%, #2f855a 100%);
    border-color: #38a169;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(72, 187, 120, 0.4);
}

.text-primary {
    color: #3182ce !important;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 3rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .section-title {
        font-size: 2.5rem;
    }

    .cta-title {
        font-size: 2.5rem;
    }

    .product-image {
        height: 220px;
    }

    .feature-card,
    .category-card {
        padding: 2rem 1.5rem;
    }
}

@media (max-width: 576px) {
    .hero-section {
        padding: 80px 0;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 1rem;
    }

    .cta-buttons {
        flex-direction: column;
        gap: 1rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .cta-title {
        font-size: 2rem;
    }
}

/* Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.sr-only-focusable:focus {
    position: static;
    width: auto;
    height: auto;
    padding: 0.5rem;
    margin: 0;
    overflow: visible;
    clip: auto;
    white-space: normal;
    background-color: #fff;
    border: 1px solid #000;
    z-index: 1000;
}