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

:root {
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --bg-card: #0f3460;
    --text-primary: #eaeaea;
    --text-secondary: #a0a0a0;
    --accent: #e94560;
    --accent-hover: #ff6b6b;
    --border: #2a2a4a;
    --code-bg: #0d1117;
    --success: #4ade80;
    --warning: #fbbf24;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header {
    text-align: center;
    padding: 40px 0 30px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 30px;
}

header h1 {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: 10px;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.search-container {
    margin-bottom: 25px;
}

#searchInput {
    width: 100%;
    padding: 15px 20px;
    font-size: 1rem;
    border: 2px solid var(--border);
    border-radius: 10px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    transition: border-color 0.3s, box-shadow 0.3s;
}

#searchInput:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 15px rgba(233, 69, 96, 0.3);
}

#searchInput::placeholder {
    color: var(--text-secondary);
}

.tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 25px;
    justify-content: center;
}

.tab-btn {
    padding: 10px 20px;
    font-size: 0.95rem;
    border: 2px solid var(--border);
    border-radius: 8px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s;
}

.tab-btn:hover {
    border-color: var(--accent);
    background: var(--bg-card);
}

.tab-btn.active {
    background: var(--accent);
    border-color: var(--accent);
}

.content {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 20px;
}

.card {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 20px;
    border: 1px solid var(--border);
    transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
}

.card-title {
    font-size: 1.2rem;
    color: var(--accent);
}

.card-category {
    font-size: 0.75rem;
    padding: 4px 10px;
    border-radius: 20px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
}

.card-description {
    color: var(--text-secondary);
    margin-bottom: 15px;
    font-size: 0.95rem;
}

.card-code {
    background: var(--code-bg);
    border-radius: 8px;
    padding: 15px;
    overflow-x: auto;
    position: relative;
}

.card-code code {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.9rem;
    color: var(--success);
    display: block;
    white-space: pre;
}

.copy-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    padding: 5px 10px;
    font-size: 0.8rem;
    border: none;
    border-radius: 5px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    cursor: pointer;
    transition: background 0.3s;
}

.copy-btn:hover {
    background: var(--accent);
}

.copy-btn.copied {
    background: var(--success);
    color: #000;
}

.no-results {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
    font-size: 1.2rem;
}

footer {
    text-align: center;
    padding: 30px 0 20px;
    margin-top: 40px;
    border-top: 1px solid var(--border);
}

footer a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
}

footer a:hover {
    color: var(--accent);
}

@media (max-width: 768px) {
    header h1 {
        font-size: 1.8rem;
    }

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

    .tabs {
        justify-content: flex-start;
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 10px;
    }

    .tab-btn {
        white-space: nowrap;
    }
}