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

:root {
    --primary: #8b5cf6;
    --primary-dark: #7c3aed;
    --secondary: #64748b;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --bg: #faf8ff;
    --card-bg: #ffffff;
    --text: #1e293b;
    --text-light: #64748b;
    --border: #e9d5ff;
    --shadow: 0 1px 3px 0 rgba(139, 92, 246, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(139, 92, 246, 0.2);
    --code-bg: #f8f9fa;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 3rem 2rem;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.subtitle {
    font-size: 1.1rem;
    opacity: 0.95;
    margin-bottom: 1.5rem;
}

.header-stats {
    display: flex;
    gap: 2rem;
    justify-content: center;
    margin: 1.5rem 0;
    font-size: 1.1rem;
}

.stat {
    opacity: 0.95;
}

.header-links {
    margin-top: 1.5rem;
}

.github-link {
    display: inline-block;
    background: white;
    color: var(--primary);
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.2s, box-shadow 0.2s;
}

.github-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 255, 255, 0.3);
}

main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

section {
    background: var(--card-bg);
    border-radius: 1rem;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
}

h2 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    color: var(--text);
}

h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text);
}

/* Search Section */
.search-container {
    margin-bottom: 1.5rem;
}

#searchInput {
    width: 100%;
    padding: 1rem 1.5rem;
    border: 2px solid var(--border);
    border-radius: 0.75rem;
    font-size: 1rem;
    transition: border-color 0.3s, box-shadow 0.3s;
}

#searchInput:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.filter-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
}

.filter-container label {
    font-weight: 600;
    color: var(--text-light);
}

.filter-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.filter-btn {
    padding: 0.5rem 1rem;
    border: 2px solid var(--border);
    background: white;
    border-radius: 0.5rem;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s;
}

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

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

/* Prompts Grid */
.prompts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
}

.prompt-card {
    background: var(--card-bg);
    border: 2px solid var(--border);
    border-radius: 0.75rem;
    padding: 1.5rem;
    transition: all 0.3s;
    cursor: pointer;
}

.prompt-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.prompt-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 1rem;
}

.prompt-card h3 {
    font-size: 1.1rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.badge {
    padding: 0.25rem 0.75rem;
    border-radius: 0.375rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.badge.customer-service { background: #dbeafe; color: #1e40af; }
.badge.sales { background: #dcfce7; color: #166534; }
.badge.marketing { background: #fef3c7; color: #92400e; }
.badge.coding { background: #e0e7ff; color: #3730a3; }
.badge.content { background: #fce7f3; color: #9f1239; }
.badge.business { background: #f3e8ff; color: #6b21a8; }
.badge.productivity { background: #ddd6fe; color: #5b21b6; }
.badge.education { background: #fed7aa; color: #9a3412; }

.badge.beginner { background: #d1fae5; color: #065f46; }
.badge.intermediate { background: #fef3c7; color: #92400e; }
.badge.advanced { background: #fecaca; color: #991b1b; }

.prompt-description {
    color: var(--text-light);
    font-size: 0.95rem;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.prompt-preview {
    background: var(--code-bg);
    padding: 0.75rem;
    border-radius: 0.5rem;
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
    color: var(--text);
    margin-bottom: 1rem;
    max-height: 100px;
    overflow: hidden;
    position: relative;
}

.prompt-preview::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 30px;
    background: linear-gradient(transparent, var(--code-bg));
}

.prompt-meta {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.copy-btn {
    width: 100%;
    padding: 0.75rem;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    margin-top: 0.5rem;
}

.copy-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

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

/* No Results */
.no-results {
    text-align: center;
    padding: 3rem;
    color: var(--text-light);
}

.no-results h3 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.about-card {
    background: var(--bg);
    padding: 1.5rem;
    border-radius: 0.75rem;
    border: 2px solid var(--border);
    text-align: center;
}

.about-card h3 {
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.about-card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* Guide Section */
.guide-list {
    list-style-position: inside;
    line-height: 2;
    color: var(--text-light);
}

.guide-list strong {
    color: var(--text);
}

.guide-list code {
    background: var(--code-bg);
    padding: 0.2rem 0.5rem;
    border-radius: 0.25rem;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    color: var(--primary);
}

/* Related Tools */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.tool-card {
    padding: 1.5rem;
    background: var(--bg);
    border: 2px solid var(--border);
    border-radius: 0.75rem;
    text-decoration: none;
    color: var(--text);
    transition: all 0.3s;
}

.tool-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.tool-card h3 {
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.tool-card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.modal-content {
    background: white;
    margin: 5% auto;
    padding: 2rem;
    border-radius: 1rem;
    max-width: 800px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.3);
}

.close {
    color: var(--text-light);
    float: right;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
}

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

.modal-meta {
    display: flex;
    gap: 0.75rem;
    margin: 1rem 0;
}

#modalDescription {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.prompt-box {
    background: var(--code-bg);
    padding: 1.5rem;
    border-radius: 0.75rem;
    margin-bottom: 1.5rem;
    position: relative;
}

.prompt-box pre {
    white-space: pre-wrap;
    word-wrap: break-word;
    font-family: 'Courier New', monospace;
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.example-box {
    background: #f0fdf4;
    border: 2px solid #86efac;
    padding: 1rem;
    border-radius: 0.5rem;
}

.example-box h4 {
    color: #166534;
    margin-bottom: 0.5rem;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-light);
    border-top: 1px solid var(--border);
    margin-top: 2rem;
}

footer a {
    color: var(--primary);
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

.badge-container {
    margin-top: 1rem;
}

/* Responsive */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }

    .header-stats {
        flex-direction: column;
        gap: 0.5rem;
    }

    main {
        padding: 1rem;
    }

    section {
        padding: 1.5rem;
    }

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

    .modal-content {
        margin: 10% 1rem;
        padding: 1.5rem;
    }
}

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

.prompt-card {
    animation: slideIn 0.3s ease-out;
}