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

:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --background: #f8fafc;
    --surface: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --transition: all 0.2s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--primary-color), #7c3aed);
    color: white;
    padding: 40px 0;
    text-align: center;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 8px;
}

.logo-img {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
}

.logo h1 {
    font-size: 2rem;
    font-weight: 700;
}

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

/* Main Content */
.main {
    flex: 1;
    padding: 40px 0;
}

/* Search Section */
.search-section {
    background: var(--surface);
    padding: 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: 32px;
}

.search-box {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
}

.search-box input {
    flex: 1;
    padding: 14px 18px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: var(--transition);
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.category-filter {
    display: flex;
    align-items: center;
    gap: 12px;
}

.category-filter label {
    font-weight: 500;
    color: var(--text-secondary);
}

.category-filter select {
    padding: 10px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    background: var(--surface);
    cursor: pointer;
    transition: var(--transition);
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--secondary-color);
    color: white;
}

.btn-secondary:hover {
    background: #475569;
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--border-color);
    color: var(--text-primary);
}

.btn-outline:hover {
    background: var(--background);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* Results Section */
.results-section {
    background: var(--surface);
    padding: 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 16px;
}

.results-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
}

.results-header span {
    color: var(--text-secondary);
    font-weight: 400;
}

/* Templates Grid */
.templates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.template-card {
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px;
    transition: var(--transition);
    cursor: pointer;
}

.template-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
    border-color: var(--primary-color);
}

.template-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
}

.template-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.category-badge {
    display: inline-block;
    padding: 4px 10px;
    background: var(--background);
    color: var(--primary-color);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: capitalize;
}

.template-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.template-keywords {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.keyword-tag {
    padding: 2px 8px;
    background: #e0f2fe;
    color: #0369a1;
    border-radius: 4px;
    font-size: 0.75rem;
}

.template-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
}

.template-format {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.preview-btn {
    padding: 6px 12px;
    font-size: 0.85rem;
}

/* No Results */
.no-results {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.no-results svg {
    margin-bottom: 16px;
    opacity: 0.5;
}

.no-results p {
    margin-bottom: 16px;
    font-size: 1.1rem;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    z-index: 1000;
    opacity: 1;
    transition: opacity 0.3s ease;
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: var(--surface);
    border-radius: var(--radius-lg);
    max-width: 700px;
    width: 100%;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: none;
    font-size: 28px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: var(--transition);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.modal-close:hover {
    background: var(--background);
    color: var(--text-primary);
}

.modal-header {
    padding: 24px 24px 16px;
    border-bottom: 1px solid var(--border-color);
    position: relative;
}

.modal-header h2 {
    font-size: 1.5rem;
    margin-bottom: 8px;
    padding-right: 40px;
}

.modal-body {
    padding: 24px;
    overflow-y: auto;
    flex: 1;
}

.preview-content {
    background: var(--background);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    margin-bottom: 20px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    white-space: pre-wrap;
    max-height: 300px;
    overflow-y: auto;
}

.template-meta {
    background: var(--background);
    padding: 16px;
    border-radius: var(--radius-md);
}

.template-meta p {
    margin-bottom: 8px;
}

.template-meta p:last-child {
    margin-bottom: 0;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

/* Form Styles */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--text-primary);
    color: white;
    padding: 16px 24px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 1001;
    animation: toastSlideIn 0.3s ease;
}

.toast.hidden {
    display: none;
}

.toast.success {
    background: var(--success-color);
}

.toast.error {
    background: var(--error-color);
}

@keyframes toastSlideIn {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Footer */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 24px 0;
    text-align: center;
}

.footer p {
    margin-bottom: 8px;
    opacity: 0.8;
}

.footer p:last-child {
    margin-bottom: 0;
}

.powered-by a {
    color: #60a5fa;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.powered-by a:hover {
    color: #93c5fd;
    text-decoration: underline;
}

/* Utility Classes */
.hidden {
    display: none !important;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header {
        padding: 30px 0;
    }

    .logo h1 {
        font-size: 1.5rem;
    }

    .logo-img {
        width: 40px;
        height: 40px;
    }

    .search-box {
        flex-direction: column;
    }

    .search-box button {
        width: 100%;
        justify-content: center;
    }

    .category-filter {
        flex-direction: column;
        align-items: flex-start;
    }

    .category-filter select {
        width: 100%;
    }

    .results-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .results-header button {
        width: 100%;
        justify-content: center;
    }

    .templates-grid {
        grid-template-columns: 1fr;
    }

    .modal-content {
        max-height: 95vh;
        margin: 10px;
    }

    .modal-footer {
        flex-direction: column;
    }

    .modal-footer button {
        width: 100%;
        justify-content: center;
    }

    .main {
        padding: 20px 0;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .search-section,
    .results-section {
        padding: 16px;
    }

    .template-card {
        padding: 16px;
    }

    .toast {
        left: 16px;
        right: 16px;
        bottom: 16px;
    }
}

/* Print Styles */
@media print {
    .header,
    .footer,
    .search-section,
    .modal {
        display: none;
    }

    .templates-grid {
        display: block;
    }

    .template-card {
        break-inside: avoid;
        margin-bottom: 16px;
    }
}