@import url('https://fonts.googleapis.com/css2?family=Raleway:wght@300;400;500;600;700&display=swap');

:root {
    --primary-color: #21aad4;
    --secondary-color: #003366;
    --text-color: #333;
    --white: #fff;
    --transition: all 0.3s ease;
    --bg: #ffffff;
    --border: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --container-padding: 2rem;
}

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

body {
    font-family: 'Raleway', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #f8f9fa;
    overflow-x: hidden;
}

.container {
    max-width: 1500px;
    margin: 0 auto;
    padding: var(--container-padding);
}

/* Hero Section */
.hero {
    position: relative;
    height: 500px;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    background-color: var(--secondary-color);
 }
 
 .hero-background img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
 }
 
 .hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        rgba(33, 170, 212, 0.685),
        rgba(33, 170, 212, 0.281)
    );
    backdrop-filter: blur(2px);
 }
 
 .hero-content {
    position: relative;
    z-index: 2;
    color: white;
    padding: 0 20px;
    max-width: 800px;
 }
 
 .hero h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    margin-bottom: 1.5rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
 }
 
 .breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 1.1rem;
 }
 
 .breadcrumb a {
    color: white;
    text-decoration: none;
    transition: var(--transition);
 }
 
 .breadcrumb a:hover {
    color: var(--primary-color);
 }

/* Typography */
.header-gold {
    color: var(--primary-color);
    text-align: center;
    font-size: 22px;
    font-weight: normal;
    margin-bottom: 10px;
}

.header-blue {
    color: var(--secondary-color);
    text-align: center;
    font-size: 26px;
    margin-bottom: 30px;
    font-weight: 600;
}

.section-description {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 4rem;
    font-size: 1.1rem;
    color: var(--text-color);
}

.section-title {
    color: #003366;
    text-align: center;
    font-size: 22px;
    margin-bottom: 35px;
}

/* Certificates Grid */
.certificate-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    padding: 2rem;
}

/* Certificate Card Styles */
.certificate-card {
    background: var(--bg);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.288);
}

.certificate-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
}

/* Certificate Header Styles */
.certificate-header {
    padding: 0.5rem;
    color: var(--white);
    position: relative;
    text-align: center;
}

.iso-14001 {
    background: linear-gradient(135deg, #2ecc71, #27ae60);
}

.iso-9001 {
    background: linear-gradient(135deg, #3498db, #2980b9);
}

.certificate-badge {
    width: 70px;
    height: 70px;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(4px);
    border-radius: 50%;
    display: grid;
    place-items: center;
    margin: 0 auto 1.5rem;
    font-size: 1.5rem;
}

.certificate-header h3 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.certificate-type {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* Certificate Preview Styles */
.certificate-preview {
    position: relative;
    aspect-ratio: 1.414/1;
    overflow: hidden;
}

.certificate-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.certificate-card:hover .certificate-preview img {
    transform: scale(1.05);
}

/* View Button Styles */
.view-btn {
    position: absolute;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg);
    color: var(--secondary-color);
    border: none;
    padding: 1rem 2rem;
    border-radius: 30px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    opacity: 0;
    z-index: 2;
}

.certificate-preview:hover .view-btn {
    opacity: 1;
    bottom: 2rem;
}

.view-btn:hover {
    background: var(--primary-color);
    color: var(--bg);
}

/* Certificate Info Styles */
.certificate-info {
    padding: 2rem;
    background-color: var(--bg);
    
}

.certificate-info ul {
    list-style: none;
    margin-bottom: 1.5rem;
}

.certificate-info li {
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.1rem;
}

.certificate-info i {
    color: var(--primary-color);
}

/* Validity Info Styles */
.validity-info {
    display: grid;
    gap: 0.8rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    font-size: 0.95rem;
    color: #666;
}

/* Benefits Section Styles */
.certification-benefits {
    background: #f8f9fa;
    padding: 4rem 0;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.benefit-card {
    text-align: center;
    padding: 2rem;
    background: var(--bg);
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.benefit-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.benefit-card h3 {
    color: var(--text-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
    z-index: 1000;
}

.modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--bg);
    border-radius: 20px;
    width: 90%;
    max-width: 1200px;
    max-height: 90vh;
    overflow: hidden;
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.close-modal {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-color);
    transition: var(--transition);
}

.close-modal:hover {
    color: #e74c3c;
}

.certificate-viewer {
    position: relative;
    overflow: auto;
    max-height: calc(90vh - 150px);
}

.certificate-viewer img {
    width: 100%;
    height: auto;
    transition: transform 0.3s ease;
}

.modal-controls {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 1rem;
    background: rgba(255, 255, 255, 0.842);
    padding: 0.5rem;
    border-radius: 30px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.781); /* Dark shadow */
}

.modal-controls button {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: none;
    background: var(--bg);
    color: var(--primary-color);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
}

.modal-controls button:hover {
    background: var(--secondary-color);
    color: var(--bg);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

[data-aos] {
    animation: fadeIn 0.8s ease forwards;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .container {
        padding: 1.5rem;
    }

    .certificate-grid {
        gap: 2rem;
        padding: 1rem;
    }

    .header-gold {
        font-size: 2rem;
    }

    .header-blue {
        font-size: 1.8rem;
    }
}

@media (max-width: 768px) {
    .certificate-grid {
        grid-template-columns: 1fr;
    }

    .certificate-preview {
        aspect-ratio: 1.2/1;
    }

    .view-btn {
        opacity: 1;
        bottom: 1.5rem;
    }

    .header-gold {
        font-size: 1.8rem;
    }

    .header-blue {
        font-size: 1.5rem;
    }

    .section-description {
        font-size: 1rem;
    }

    .certificate-info li {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 1rem;
    }

    .certificate-badge {
        width: 60px;
        height: 60px;
        font-size: 1.2rem;
    }

    .certificate-header h3 {
        font-size: 1.5rem;
    }

    .certificate-type {
        font-size: 1rem;
    }

    .modal-controls {
        gap: 0.5rem;
    }

    .modal-controls button {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }
}

/* Print Styles */
@media print {
    .view-btn,
    .modal-controls,
    .certificate-badge {
        display: none;
    }

    .certificate-card {
        break-inside: avoid;
        box-shadow: none;
    }
}