.container-palavras-chave {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
    font-family: Arial, sans-serif;
    min-height: 100vh;
}

.container-palavras-chave h1 {
    text-align: center;
    color: #000;
    margin-bottom: 50px;
    font-size: 2.5em;
}

.categorias-keywords {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.categoria-kw {
    background: linear-gradient(135deg, #333333 0%, #1a1a1a 100%);
    border: 2px solid #444444;
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    transition: transform 0.3s ease;
}

.categoria-kw:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.7);
    border-color: #888888;
}

.categoria-kw h2 {
    color: #cccccc;
    margin-bottom: 20px;
    font-size: 1.4em;
    text-align: center;
    padding-bottom: 15px;
    border-bottom: 3px solid #cccccc;
}

.palavras-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
}

.keyword {
    background: linear-gradient(135deg, #000000 0%, #333333 100%);
    color: #cccccc;
    padding: 8px 16px;
    border-radius: 25px;
    font-size: 0.9em;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 3px 10px rgba(0,0,0,0.5);
    border: 1px solid #444444;
    text-decoration: none;
    display: inline-block;
}

.keyword:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 5px 20px rgba(150, 150, 150, 0.4);
    background: linear-gradient(135deg, #888888 0%, #000000 100%);
    color: #ffffff;
    border-color: #888888;
    text-decoration: none;
}

.volume-info {
    background: linear-gradient(135deg, #000000 0%, #333333 100%);
    border: 2px solid #888888;
    border-radius: 20px;
    padding: 30px;
    color: white;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.volume-info h3 {
    margin-bottom: 25px;
    font-size: 1.6em;
    color: #cccccc;
}

.volume-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.volume-item {
    background: rgba(0,0,0,0.4);
    border-radius: 10px;
    padding: 15px;
    backdrop-filter: blur(10px);
    border: 1px solid #888888;
    transition: all 0.3s ease;
}

.volume-item:hover {
    background: rgba(136,136,136,0.2);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(136,136,136,0.3);
}

.volume-item strong {
    display: block;
    font-size: 1.1em;
    margin-bottom: 8px;
    color: #cccccc;
}

.volume-item span {
    color: #ffffff;
    font-weight: bold;
    font-size: 0.95em;
}

@media (max-width: 768px) {
    .categorias-keywords {
        grid-template-columns: 1fr;
    }
    
    .container-palavras-chave {
        padding: 20px 15px;
        background-color: #1a1a1a;
    }
    
    .container-palavras-chave h1 {
        font-size: 2em;
    }
    
    .volume-grid {
        grid-template-columns: 1fr;
    }
    
    .palavras-grid {
        justify-content: flex-start;
    }
    
    .keyword {
        font-size: 0.85em;
        padding: 6px 12px;
    }
}

/* Animação de entrada */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.categoria-kw {
    animation: fadeInUp 0.6s ease forwards;
}

.categoria-kw:nth-child(1) { animation-delay: 0.1s; }
.categoria-kw:nth-child(2) { animation-delay: 0.2s; }
.categoria-kw:nth-child(3) { animation-delay: 0.3s; }
.categoria-kw:nth-child(4) { animation-delay: 0.4s; }
.categoria-kw:nth-child(5) { animation-delay: 0.5s; }
.categoria-kw:nth-child(6) { animation-delay: 0.6s; }
.categoria-kw:nth-child(7) { animation-delay: 0.7s; }
.categoria-kw:nth-child(8) { animation-delay: 0.8s; }