/* Reset et base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
    line-height: 1.6;
}

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

/* Navigation */
.main-nav {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 30px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    text-decoration: none;
    border-radius: 25px;
    transition: all 0.3s ease;
    font-weight: 500;
    backdrop-filter: blur(10px);
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.nav-link.active {
    background: rgba(255, 255, 255, 0.25);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

/* Header */
header {
    text-align: center;
    margin-bottom: 40px;
    color: white;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

header p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* Search Container */
.search-container {
    background: white;
    border-radius: 15px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.search-box {
    position: relative;
    margin-bottom: 20px;
}

.search-box i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #666;
    font-size: 1.1rem;
}

.search-box input {
    width: 100%;
    padding: 15px 50px 15px 45px;
    border: 2px solid #e1e5e9;
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.search-box input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.clear-btn {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #666;
    cursor: pointer;
    font-size: 1.1rem;
    padding: 5px;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.clear-btn:hover {
    background: #f0f0f0;
    color: #333;
}

.search-filters select {
    padding: 10px 15px;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-size: 1rem;
    background: white;
    cursor: pointer;
    transition: all 0.3s ease;
}

.search-filters select:focus {
    outline: none;
    border-color: #667eea;
}

/* Stats */
.stats {
    text-align: center;
    margin-bottom: 20px;
    color: white;
    font-size: 1.1rem;
    font-weight: 500;
}

/* Commands Grid */
.commands-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.command-card {
    background: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    cursor: pointer;
    border-left: 4px solid #667eea;
}

.command-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

.command-card h3 {
    color: #667eea;
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.command-card .category {
    display: inline-block;
    background: #f0f0f0;
    color: #666;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    margin-bottom: 10px;
    text-transform: uppercase;
    font-weight: 600;
}

.command-card .description {
    color: #666;
    font-size: 0.9rem;
    line-height: 1.5;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 0;
    border-radius: 15px;
    width: 90%;
    max-width: 800px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 20px 30px;
    border-radius: 15px 15px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    margin: 0;
    font-size: 1.5rem;
}

.close-btn {
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 5px;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.close-btn:hover {
    background: rgba(255,255,255,0.2);
}

.modal-body {
    padding: 30px;
}

.command-info h3 {
    color: #667eea;
    margin-bottom: 15px;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.command-info h3 i {
    font-size: 1rem;
}

.syntax-section pre {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 15px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    overflow-x: auto;
    margin-bottom: 20px;
}

.description-section {
    margin-bottom: 25px;
}

.description-section p {
    color: #666;
    line-height: 1.6;
}

.examples-section {
    margin-bottom: 25px;
}

.example {
    background: #f8f9fa;
    border-left: 4px solid #667eea;
    padding: 15px;
    margin-bottom: 15px;
    border-radius: 0 8px 8px 0;
}

.example h4 {
    color: #333;
    margin-bottom: 10px;
    font-size: 1rem;
}

.example pre {
    background: #2d3748;
    color: #e2e8f0;
    padding: 12px;
    border-radius: 6px;
    font-size: 0.85rem;
    overflow-x: auto;
    margin: 0;
}

.notes-section ul {
    list-style: none;
    padding: 0;
}

.notes-section li {
    background: #fff3cd;
    border: 1px solid #ffeaa7;
    border-radius: 6px;
    padding: 12px;
    margin-bottom: 10px;
    color: #856404;
    position: relative;
    padding-left: 35px;
}

.notes-section li:before {
    content: "⚠️";
    position: absolute;
    left: 12px;
    top: 12px;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .main-nav {
        flex-direction: column;
        align-items: center;
    }
    
    .nav-link {
        width: 200px;
        justify-content: center;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    .search-container {
        padding: 20px;
    }
    
    .commands-grid {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        width: 95%;
        margin: 10% auto;
    }
    
    .modal-body {
        padding: 20px;
    }
}

/* Loading animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Category colors */
.category-ddl { border-left-color: #e74c3c !important; }
.category-dml { border-left-color: #3498db !important; }
.category-dql { border-left-color: #2ecc71 !important; }
.category-dcl { border-left-color: #f39c12 !important; }
.category-tcl { border-left-color: #9b59b6 !important; }
.category-utility { border-left-color: #1abc9c !important; }