/**
 * TUV Westen Certification - Frontend Styles
 * Modern and minimal certificate display
 */

/* ========================================
   CSS Custom Properties (Theme Variables)
   ======================================== */
:root {
    --tuv-primary: #005293;
    --tuv-primary-dark: #003d6e;
    --tuv-primary-light: #e8f1f8;
    --tuv-secondary: #64748b;
    --tuv-success: #10b981;
    --tuv-white: #ffffff;
    --tuv-gray-50: #f8fafc;
    --tuv-gray-100: #f1f5f9;
    --tuv-gray-200: #e2e8f0;
    --tuv-gray-300: #cbd5e1;
    --tuv-gray-800: #1e293b;
    --tuv-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --tuv-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --tuv-shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.12);
    --tuv-radius: 12px;
    --tuv-radius-sm: 8px;
    --tuv-font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

/* ========================================
   Certificate Container
   ======================================== */
.tuv-certificate-wrapper {
    font-family: var(--tuv-font);
    max-width: 900px;
    margin: 40px auto;
    padding: 0 20px;
}

.tuv-certificate {
    background: var(--tuv-white);
    border-radius: var(--tuv-radius);
    box-shadow: var(--tuv-shadow-lg);
    overflow: hidden;
}

/* ========================================
   Header Section
   ======================================== */
.tuv-certificate-header {
    background: linear-gradient(135deg, var(--tuv-primary) 0%, var(--tuv-primary-dark) 100%);
    color: var(--tuv-white);
    padding: 40px;
    text-align: center;
    position: relative;
}

.tuv-certificate-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--tuv-success), #34d399);
}

.tuv-brand {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: 8px;
}

.tuv-certificate-type {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 4px;
    opacity: 0.9;
    font-weight: 300;
}

/* ========================================
   Body Section
   ======================================== */
.tuv-certificate-body {
    padding: 40px;
}

/* Title */
.tuv-certificate-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--tuv-gray-800);
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--tuv-gray-200);
}

/* Main Content Grid */
.tuv-certificate-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 30px;
}

/* Image Section */
.tuv-certificate-image {
    text-align: center;
}

.tuv-certificate-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--tuv-radius-sm);
    box-shadow: var(--tuv-shadow);
    border: 4px solid var(--tuv-gray-100);
}

.tuv-certificate-image-placeholder {
    background: var(--tuv-gray-100);
    border-radius: var(--tuv-radius-sm);
    padding: 60px 20px;
    color: var(--tuv-secondary);
    font-size: 0.875rem;
}

/* QR Code Section */
.tuv-certificate-qr {
    text-align: center;
    padding: 20px;
    background: var(--tuv-gray-50);
    border-radius: var(--tuv-radius-sm);
    height: fit-content;
}

.tuv-certificate-qr img {
    max-width: 180px;
    margin-bottom: 15px;
}

.tuv-qr-label {
    font-size: 0.875rem;
    color: var(--tuv-secondary);
    margin: 0;
}

/* Certificate ID Tag */
.tuv-cert-id-tag {
    display: inline-block;
    background: #e5f3ff;
    color: #005293;
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.9em;
    font-weight: 700;
    margin-top: 15px;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 4px rgba(0, 82, 147, 0.1);
}

/* ========================================
   Data Table
   ======================================== */
.tuv-certificate-data {
    margin-top: 30px;
}

.tuv-data-heading {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--tuv-primary);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.tuv-data-heading::before {
    content: '';
    width: 4px;
    height: 24px;
    background: var(--tuv-primary);
    border-radius: 2px;
}

.tuv-data-table {
    width: 100%;
    border-collapse: collapse;
}

.tuv-data-table tr {
    border-bottom: 1px solid var(--tuv-gray-200);
}

.tuv-data-table tr:last-child {
    border-bottom: none;
}

.tuv-data-table th,
.tuv-data-table td {
    padding: 15px;
    text-align: left;
    font-size: 0.9375rem;
}

.tuv-data-table th {
    font-weight: 600;
    color: var(--tuv-gray-800);
    background: var(--tuv-gray-50);
    width: 40%;
}

.tuv-data-table td {
    color: var(--tuv-secondary);
}

/* ========================================
   Download Button
   ======================================== */
.tuv-download-section {
    text-align: center;
    padding: 30px;
    background: var(--tuv-gray-50);
    border-top: 1px solid var(--tuv-gray-200);
}

.tuv-download-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 16px 40px;
    background: linear-gradient(135deg, var(--tuv-primary) 0%, var(--tuv-primary-dark) 100%);
    color: var(--tuv-white);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 82, 147, 0.3);
}

.tuv-download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 82, 147, 0.4);
    color: var(--tuv-white);
}

.tuv-download-btn:active {
    transform: translateY(0);
}

.tuv-download-btn svg {
    width: 20px;
    height: 20px;
}

/* ========================================
   Footer Section
   ======================================== */
.tuv-certificate-footer {
    padding: 20px 40px;
    background: var(--tuv-gray-800);
    color: var(--tuv-gray-300);
    text-align: center;
    font-size: 0.875rem;
}

.tuv-certificate-footer a {
    color: var(--tuv-white);
    text-decoration: none;
    font-weight: 500;
}

.tuv-certificate-footer a:hover {
    text-decoration: underline;
}

/* ========================================
   Verification Badge
   ======================================== */
.tuv-verified-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(16, 185, 129, 0.1);
    color: var(--tuv-success);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 50px;
    margin-bottom: 20px;
}

.tuv-verified-badge svg {
    width: 18px;
    height: 18px;
}

/* ========================================
   Responsive Design
   ======================================== */
@media screen and (max-width: 768px) {
    .tuv-certificate-wrapper {
        margin: 20px auto;
        padding: 0 15px;
    }

    .tuv-certificate-header {
        padding: 30px 20px;
    }

    .tuv-brand {
        font-size: 1.5rem;
    }

    .tuv-certificate-body {
        padding: 25px;
    }

    .tuv-certificate-content {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .tuv-certificate-title {
        font-size: 1.375rem;
    }

    .tuv-data-table th,
    .tuv-data-table td {
        padding: 12px;
        font-size: 0.875rem;
    }

    .tuv-data-table th {
        width: 45%;
    }

    .tuv-download-btn {
        width: 100%;
        justify-content: center;
    }
}

/* ========================================
   Print Styles
   ======================================== */
@media print {
    .tuv-certificate-wrapper {
        margin: 0;
        max-width: none;
    }

    .tuv-certificate {
        box-shadow: none;
    }

    .tuv-download-section {
        display: none;
    }
}

/* ========================================
   Animation
   ======================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tuv-certificate {
    animation: fadeInUp 0.5s ease;
}