/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

:root {
    --primary-color: #4a6bff;
    --secondary-color: #6c63ff;
    --accent-color: #ff6b8b;
    --light-bg: #f8f9ff;
    --dark-bg: #1a1d29;
    --text-dark: #2c3e50;
    --text-light: #6c757d;
    --white: #ffffff;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 20px 40px rgba(0, 0, 0, 0.15);
    --border-radius: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, #f5f7ff 0%, #eef1ff 100%);
    min-height: 100vh;
    color: var(--text-dark);
    line-height: 1.6;
    padding: 20px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    position: relative;
}

/* Header */
header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    padding: 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

header::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 1000 100" opacity="0.1"><path d="M0,50 Q250,0 500,50 T1000,50 V100 H0 Z" fill="white"/></svg>');
    background-size: cover;
}

.logo-container {
    position: relative;
    z-index: 1;
    margin-bottom: 20px;
}

.logo {
    max-width: 200px;
    height: auto;
    margin: 0 auto;
}

.header-content {
    position: relative;
    z-index: 1;
}

header h1 {
    font-family: 'Montserrat', sans-serif;
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: -0.5px;
}

header .subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* Search Section */
.search-section {
    padding: 40px;
    background: var(--light-bg);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.search-controls {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 25px;
    flex-wrap: wrap;
}

.search-mode {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--white);
    padding: 12px 20px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    min-width: 220px;
}

.search-mode label {
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.95rem;
}

.search-mode select {
    padding: 10px 15px;
    border: 2px solid #e0e6ff;
    border-radius: 8px;
    background: var(--white);
    font-family: 'Poppins', sans-serif;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    min-width: 120px;
}

.search-mode select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.search-box {
    flex: 1;
    display: flex;
    gap: 12px;
    background: var(--white);
    padding: 5px 5px 5px 20px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    min-width: 300px;
}

.search-box i {
    color: var(--primary-color);
    font-size: 1.2rem;
    align-self: center;
}

.search-box input {
    flex: 1;
    padding: 15px;
    border: none;
    font-size: 1rem;
    font-family: 'Poppins', sans-serif;
    transition: var(--transition);
    background: transparent;
}

.search-box input:focus {
    outline: none;
}

.search-box input::placeholder {
    color: #a0a7c2;
}

.search-box button {
    padding: 15px 30px;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 600;
    font-family: 'Poppins', sans-serif;
    transition: var(--transition);
    font-size: 0.95rem;
}

#searchBtn {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
}

#showAllBtn {
    background: #f0f3ff;
    color: var(--text-dark);
}

.search-box button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(106, 123, 255, 0.3);
}

.search-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 10px;
}

#resultCount {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 1.1rem;
    padding: 8px 16px;
    background: var(--white);
    border-radius: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.instructions {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-light);
    font-size: 0.9rem;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 20px;
}

.instructions i {
    color: var(--accent-color);
}

/* Results Section */
.results-section {
    padding: 40px;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 20px;
}

.results-header h2 {
    color: var(--text-dark);
    font-size: 2rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 12px;
}

.results-header h2 i {
    color: var(--primary-color);
    font-size: 1.8rem;
}

.sort-options select {
    padding: 12px 20px;
    border: 2px solid #e0e6ff;
    border-radius: 10px;
    background: var(--white);
    font-family: 'Poppins', sans-serif;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    min-width: 180px;
}

.sort-options select:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Certificates Grid */
.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.certificate-card {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid #f0f3ff;
    position: relative;
}

.certificate-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.certificate-image {
    height: 200px;
    overflow: hidden;
    background: linear-gradient(135deg, #f0f3ff 0%, #e6ebff 100%);
    position: relative;
}

.certificate-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.certificate-info {
    padding: 24px;
}

.certificate-details {
    margin-bottom: 20px;
}

.certificate-name {
    font-weight: 600;
    color: var(--text-dark);
    font-size: 1.2rem;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.certificate-name i {
    color: var(--primary-color);
    font-size: 1.1rem;
}

.certificate-email {
    font-size: 0.9rem;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 10px;
    line-height: 1.4;
}

.certificate-email i {
    color: var(--secondary-color);
    font-size: 0.95rem;
}

.certificate-actions {
    display: flex;
    gap: 12px;
}

.preview-btn, .download-card-btn {
    flex: 1;
    padding: 12px;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 600;
    font-family: 'Poppins', sans-serif;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 0.9rem;
}

.preview-btn {
    background: #f0f7ff;
    color: var(--primary-color);
    border: 2px solid #e0eeff;
}

.download-card-btn {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    text-decoration: none;
}

.preview-btn:hover, .download-card-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(106, 123, 255, 0.2);
}

.preview-btn:hover {
    background: #e6f0ff;
    border-color: var(--primary-color);
}

/* No Results */
.no-results {
    grid-column: 1 / -1;
    text-align: center;
    padding: 80px 20px;
    color: var(--text-light);
}

.no-results i {
    font-size: 5rem;
    color: #e0e6ff;
    margin-bottom: 20px;
}

.no-results h3 {
    margin-bottom: 15px;
    color: var(--text-dark);
    font-size: 1.5rem;
    font-weight: 600;
}

.no-results p {
    font-size: 1.1rem;
}

/* Pagination - FIXED */
.pagination-container {
    display: flex;
    justify-content: center;
    margin-top: 40px;
    padding: 0 20px;
}

.pagination {
    display: flex;
    gap: 8px;
    background: var(--white);
    padding: 10px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    overflow-x: auto;
    max-width: 100%;
    scrollbar-width: thin;
    scrollbar-color: var(--primary-color) #f0f3ff;
}

.pagination::-webkit-scrollbar {
    height: 6px;
}

.pagination::-webkit-scrollbar-track {
    background: #f0f3ff;
    border-radius: 3px;
}

.pagination::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 3px;
}

.page-btn {
    min-width: 45px;
    height: 45px;
    padding: 0 5px;
    border: 2px solid transparent;
    background: #f8f9ff;
    border-radius: 10px;
    cursor: pointer;
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-dark);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.page-btn:hover:not(.active) {
    background: #eef1ff;
    border-color: #d0d9ff;
    transform: translateY(-2px);
}

.page-btn.active {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(106, 123, 255, 0.3);
}

.page-btn i {
    font-size: 0.9rem;
}

/* Modal */
.preview-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(26, 29, 41, 0.95);
    backdrop-filter: blur(8px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

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

.modal-content {
    background: var(--white);
    border-radius: 20px;
    max-width: 90vw;
    max-height: 90vh;
    overflow: hidden;
    position: relative;
    animation: slideUp 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.close-modal {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 1001;
    transition: var(--transition);
    color: var(--text-dark);
}

.close-modal:hover {
    background: var(--white);
    transform: rotate(90deg);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.modal-header {
    padding: 25px 30px;
    border-bottom: 1px solid #f0f3ff;
}

.modal-header h3 {
    color: var(--text-dark);
    font-size: 1.5rem;
    font-weight: 600;
}

.modal-body {
    padding: 30px;
    max-height: 60vh;
    overflow-y: auto;
    text-align: center;
}

.modal-body img {
    max-width: 100%;
    max-height: 50vh;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.modal-footer {
    padding: 25px 30px;
    text-align: center;
    border-top: 1px solid #f0f3ff;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 15px 35px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    font-family: 'Poppins', sans-serif;
    transition: var(--transition);
    font-size: 1rem;
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(106, 123, 255, 0.4);
}

/* Footer */
footer {
    padding: 25px 40px;
    text-align: center;
    background: var(--light-bg);
    color: var(--text-light);
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    font-size: 0.95rem;
}

footer p {
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .certificates-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: 25px;
    }
}

@media (max-width: 768px) {
    body {
        padding: 10px;
    }
    
    .container {
        border-radius: 12px;
    }
    
    header {
        padding: 30px 20px;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    .search-section {
        padding: 30px 20px;
    }
    
    .search-controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-mode {
        width: 100%;
    }
    
    .search-box {
        flex-direction: column;
        min-width: 100%;
    }
    
    .search-box input {
        width: 100%;
        text-align: center;
    }
    
    .search-info {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .results-section {
        padding: 30px 20px;
    }
    
    .results-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .certificates-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .pagination {
        padding: 8px;
    }
    
    .page-btn {
        min-width: 40px;
        height: 40px;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 1.8rem;
    }
    
    .search-box button {
        width: 100%;
    }
    
    .certificate-image {
        height: 180px;
    }
    
    .certificate-info {
        padding: 20px;
    }
    
    .certificate-actions {
        flex-direction: column;
    }
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(106, 123, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Certificate Badge */
.certificate-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--accent-color);
    color: white;
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    z-index: 2;
}

/* Search Highlights */
.highlight {
    background: linear-gradient(120deg, rgba(255, 107, 139, 0.2) 0%, rgba(106, 123, 255, 0.2) 100%);
    padding: 2px 4px;
    border-radius: 4px;
}/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

:root {
    --primary-color: #4a6bff;
    --secondary-color: #6c63ff;
    --accent-color: #ff6b8b;
    --light-bg: #f8f9ff;
    --dark-bg: #1a1d29;
    --text-dark: #2c3e50;
    --text-light: #6c757d;
    --white: #ffffff;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 20px 40px rgba(0, 0, 0, 0.15);
    --border-radius: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(135deg, #f5f7ff 0%, #eef1ff 100%);
    min-height: 100vh;
    color: var(--text-dark);
    line-height: 1.6;
    padding: 20px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    position: relative;
}

/* Header */
header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    padding: 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

header::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 1000 100" opacity="0.1"><path d="M0,50 Q250,0 500,50 T1000,50 V100 H0 Z" fill="white"/></svg>');
    background-size: cover;
}

.logo-container {
    position: relative;
    z-index: 1;
    margin-bottom: 20px;
}

.logo {
    max-width: 150px;
    height: auto;
    margin: 0 auto;
    border-radius: 20px;
}

.header-content {
    position: relative;
    z-index: 1;
}

header h1 {
    font-family: 'Montserrat', sans-serif;
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: -0.5px;
}

header .subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* Search Section */
.search-section {
    padding: 40px;
    background: var(--light-bg);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.search-controls {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 25px;
    flex-wrap: wrap;
}

.search-mode {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--white);
    padding: 12px 20px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    min-width: 220px;
}

.search-mode label {
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.95rem;
}

.search-mode select {
    padding: 10px 15px;
    border: 2px solid #e0e6ff;
    border-radius: 8px;
    background: var(--white);
    font-family: 'Poppins', sans-serif;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    min-width: 120px;
}

.search-mode select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.search-box {
    flex: 1;
    display: flex;
    gap: 12px;
    background: var(--white);
    padding: 5px 5px 5px 20px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    min-width: 300px;
}

.search-box i {
    color: var(--primary-color);
    font-size: 1.2rem;
    align-self: center;
}

.search-box input {
    flex: 1;
    padding: 15px;
    border: none;
    font-size: 1rem;
    font-family: 'Poppins', sans-serif;
    transition: var(--transition);
    background: transparent;
}

.search-box input:focus {
    outline: none;
}

.search-box input::placeholder {
    color: #a0a7c2;
}

.search-box button {
    padding: 15px 30px;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 600;
    font-family: 'Poppins', sans-serif;
    transition: var(--transition);
    font-size: 0.95rem;
}

#searchBtn {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
}

#showAllBtn {
    background: #f0f3ff;
    color: var(--text-dark);
}

.search-box button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(106, 123, 255, 0.3);
}

.search-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 10px;
}

#resultCount {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 1.1rem;
    padding: 8px 16px;
    background: var(--white);
    border-radius: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.instructions {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-light);
    font-size: 0.9rem;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 20px;
}

.instructions i {
    color: var(--accent-color);
}

/* Results Section */
.results-section {
    padding: 40px;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 20px;
}

.results-header h2 {
    color: var(--text-dark);
    font-size: 2rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 12px;
}

.results-header h2 i {
    color: var(--primary-color);
    font-size: 1.8rem;
}

.sort-options select {
    padding: 12px 20px;
    border: 2px solid #e0e6ff;
    border-radius: 10px;
    background: var(--white);
    font-family: 'Poppins', sans-serif;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    min-width: 180px;
}

.sort-options select:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Certificates Grid */
.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.certificate-card {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid #f0f3ff;
    position: relative;
}

.certificate-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.certificate-image {
    height: 200px;
    overflow: hidden;
    background: linear-gradient(135deg, #f0f3ff 0%, #e6ebff 100%);
    position: relative;
}

.certificate-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.certificate-info {
    padding: 24px;
}

.certificate-details {
    margin-bottom: 20px;
}

.certificate-name {
    font-weight: 600;
    color: var(--text-dark);
    font-size: 1.2rem;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.certificate-name i {
    color: var(--primary-color);
    font-size: 1.1rem;
}

.certificate-email {
    font-size: 0.9rem;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 10px;
    line-height: 1.4;
}

.certificate-email i {
    color: var(--secondary-color);
    font-size: 0.95rem;
}

.certificate-actions {
    display: flex;
    gap: 12px;
}

.preview-btn, .download-card-btn {
    flex: 1;
    padding: 12px;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 600;
    font-family: 'Poppins', sans-serif;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 0.9rem;
}

.preview-btn {
    background: #f0f7ff;
    color: var(--primary-color);
    border: 2px solid #e0eeff;
}

.download-card-btn {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    text-decoration: none;
}

.preview-btn:hover, .download-card-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(106, 123, 255, 0.2);
}

.preview-btn:hover {
    background: #e6f0ff;
    border-color: var(--primary-color);
}

/* No Results */
.no-results {
    grid-column: 1 / -1;
    text-align: center;
    padding: 80px 20px;
    color: var(--text-light);
}

.no-results i {
    font-size: 5rem;
    color: #e0e6ff;
    margin-bottom: 20px;
}

.no-results h3 {
    margin-bottom: 15px;
    color: var(--text-dark);
    font-size: 1.5rem;
    font-weight: 600;
}

.no-results p {
    font-size: 1.1rem;
}

/* Pagination - FIXED */
.pagination-container {
    display: flex;
    justify-content: center;
    margin-top: 40px;
    padding: 0 20px;
}

.pagination {
    display: flex;
    gap: 8px;
    background: var(--white);
    padding: 10px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    overflow-x: auto;
    max-width: 100%;
    scrollbar-width: thin;
    scrollbar-color: var(--primary-color) #f0f3ff;
}

.pagination::-webkit-scrollbar {
    height: 6px;
}

.pagination::-webkit-scrollbar-track {
    background: #f0f3ff;
    border-radius: 3px;
}

.pagination::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 3px;
}

.page-btn {
    min-width: 45px;
    height: 45px;
    padding: 0 5px;
    border: 2px solid transparent;
    background: #f8f9ff;
    border-radius: 10px;
    cursor: pointer;
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-dark);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.page-btn:hover:not(.active) {
    background: #eef1ff;
    border-color: #d0d9ff;
    transform: translateY(-2px);
}

.page-btn.active {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(106, 123, 255, 0.3);
}

.page-btn i {
    font-size: 0.9rem;
}

/* Modal */
.preview-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(26, 29, 41, 0.95);
    backdrop-filter: blur(8px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

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

.modal-content {
    background: var(--white);
    border-radius: 20px;
    max-width: 90vw;
    max-height: 90vh;
    overflow: hidden;
    position: relative;
    animation: slideUp 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.close-modal {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 1001;
    transition: var(--transition);
    color: var(--text-dark);
}

.close-modal:hover {
    background: var(--white);
    transform: rotate(90deg);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.modal-header {
    padding: 25px 30px;
    border-bottom: 1px solid #f0f3ff;
}

.modal-header h3 {
    color: var(--text-dark);
    font-size: 1.5rem;
    font-weight: 600;
}

.modal-body {
    padding: 30px;
    max-height: 60vh;
    overflow-y: auto;
    text-align: center;
}

.modal-body img {
    max-width: 100%;
    max-height: 50vh;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.modal-footer {
    padding: 25px 30px;
    text-align: center;
    border-top: 1px solid #f0f3ff;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 15px 35px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    font-family: 'Poppins', sans-serif;
    transition: var(--transition);
    font-size: 1rem;
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(106, 123, 255, 0.4);
}

/* Footer */
footer {
    padding: 25px 40px;
    text-align: center;
    background: var(--light-bg);
    color: var(--text-light);
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    font-size: 0.95rem;
}

footer p {
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .certificates-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: 25px;
    }
}

@media (max-width: 768px) {
    body {
        padding: 10px;
    }
    
    .container {
        border-radius: 12px;
    }
    
    header {
        padding: 30px 20px;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    .search-section {
        padding: 30px 20px;
    }
    
    .search-controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-mode {
        width: 100%;
    }
    
    .search-box {
        flex-direction: column;
        min-width: 100%;
    }
    
    .search-box input {
        width: 100%;
        text-align: center;
    }
    
    .search-info {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .results-section {
        padding: 30px 20px;
    }
    
    .results-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .certificates-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .pagination {
        padding: 8px;
    }
    
    .page-btn {
        min-width: 40px;
        height: 40px;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 1.8rem;
    }
    
    .search-box button {
        width: 100%;
    }
    
    .certificate-image {
        height: 180px;
    }
    
    .certificate-info {
        padding: 20px;
    }
    
    .certificate-actions {
        flex-direction: column;
    }
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(106, 123, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Certificate Badge */
.certificate-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--accent-color);
    color: white;
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    z-index: 2;
}

/* Search Highlights */
.highlight {
    background: linear-gradient(120deg, rgba(255, 107, 139, 0.2) 0%, rgba(106, 123, 255, 0.2) 100%);
    padding: 2px 4px;
    border-radius: 4px;
}