/* ===== BIBLIOTECA DE TUTORIAIS ===== */


/* Hero */
.biblioteca-hero {
    padding: 120px 0 50px;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    text-align: center;
}

/* ===== BOTÃO VOLTAR ===== */
/* Versão 1: Botão completo */
.btn-voltar {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(224, 202, 0, 0.15);
    border: 1px solid var(--accent-primary);
    color: var(--accent-primary);
    padding: 10px 20px;
    border-radius: 30px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 20px;
}

.btn-voltar:hover {
    background: var(--accent-primary);
    color: #000;
    transform: translateX(-5px);
}

.btn-voltar i {
    transition: transform 0.3s ease;
}

.btn-voltar:hover i {
    transform: translateX(-3px);
}

/* Versão 2: Apenas ícone */
.btn-voltar-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(224, 202, 0, 0.15);
    border: 1px solid var(--accent-primary);
    color: var(--accent-primary);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    margin-bottom: 20px;
}

.btn-voltar-icon:hover {
    background: var(--accent-primary);
    color: #000;
    transform: translateX(-5px);
}

/* Versão 3: Link estilizado */
.btn-voltar-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    margin-bottom: 20px;
}

.btn-voltar-link:hover {
    color: var(--accent-primary);
    transform: translateX(-5px);
}

.btn-voltar-link i {
    transition: transform 0.3s ease;
}

.btn-voltar-link:hover i {
    transform: translateX(-3px);
}

/* Posicionamento no topo da página do tutorial */
.tutorial-header {
    position: relative;
}

/* Para colocar o botão flutuante no canto superior esquerdo */
.btn-voltar-flutuante {
    position: absolute;
    top: 0;
    left: 0;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    padding: 8px 16px;
    border-radius: 30px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.btn-voltar-flutuante:hover {
    background: var(--accent-primary);
    color: #000;
    transform: translateX(-5px);
}

[data-theme="light"] .btn-voltar-flutuante {
    background: rgba(255, 255, 255, 0.8);
    color: #000;
}



.biblioteca-hero h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    font-family: 'Space Grotesk', monospace;
}

.biblioteca-hero p {
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 30px;
}

/* Barra de Busca */
.biblioteca-search {
    max-width: 600px;
    margin: 0 auto 30px;
}

.search-box {
    display: flex;
    align-items: center;
    background: rgba(255,255,255,0.08);
    border-radius: 60px;
    padding: 5px 20px;
    border: 1px solid rgba(255,255,255,0.15);
    transition: all 0.3s ease;
}

.search-box:focus-within {
    border-color: var(--accent-primary);
    box-shadow: 0 0 20px rgba(224,202,0,0.2);
}

.search-box i {
    color: var(--accent-primary);
    font-size: 1rem;
}

.search-box input {
    flex: 1;
    background: transparent;
    border: none;
    padding: 15px 15px;
    color: var(--text-primary);
    font-size: 1rem;
    outline: none;
}

.search-box input::placeholder {
    color: rgba(255,255,255,0.4);
}

.clear-search {
    background: none;
    border: none;
    color: rgba(255,255,255,0.6);
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.clear-search:hover {
    color: var(--accent-primary);
    transform: scale(1.1);
}

/* Filtros */
.filters-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-top: 20px;
}

.filter-btn {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    padding: 8px 20px;
    border-radius: 30px;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn:hover {
    background: rgba(224,202,0,0.15);
    color: var(--accent-primary);
    transform: translateY(-2px);
}

.filter-btn.active {
    background: linear-gradient(135deg, var(--accent-primary), #ff6b00);
    color: #000;
    border-color: transparent;
}

/* Grid de Tutoriais */
.biblioteca-grid-section {
    padding: 60px 0;
}

.tutoriais-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
}

/* Card de Tutorial */
.tutorial-card {
    background: var(--bg-secondary);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.3s ease;
    border: 1px solid rgba(255,255,255,0.05);
    cursor: pointer;
}

.tutorial-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-primary);
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.tutorial-card-image {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

.tutorial-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.tutorial-card:hover .tutorial-card-image img {
    transform: scale(1.05);
}

.tutorial-category-badge {
    position: absolute;
    top: 15px;
    left: 15px;
    background: linear-gradient(135deg, var(--accent-primary), #ff6b00);
    color: #000;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    z-index: 2;
}

.tutorial-views {
    position: absolute;
    bottom: 15px;
    right: 15px;
    background: rgba(0,0,0,0.7);
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.7rem;
    backdrop-filter: blur(5px);
}

.tutorial-views i {
    margin-right: 5px;
    color: var(--accent-primary);
}

.tutorial-card-info {
    padding: 20px;
}

.tutorial-card-info h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 10px;
    line-height: 1.4;
}

.tutorial-card-info p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 15px;
    line-height: 1.5;
}

.tutorial-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.tutorial-difficulty {
    display: flex;
    align-items: center;
    gap: 5px;
}

.tutorial-difficulty i {
    font-size: 0.7rem;
}

.difficulty-easy { color: #28a745; }
.difficulty-medium { color: #ffc107; }
.difficulty-hard { color: #dc3545; }

.tutorial-time i {
    margin-right: 4px;
}

.btn-ler-tutorial {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(224,202,0,0.15);
    color: var(--accent-primary);
    padding: 8px 16px;
    border-radius: 30px;
    font-size: 0.8rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    width: fit-content;
}

.btn-ler-tutorial:hover {
    background: var(--accent-primary);
    color: #000;
    gap: 12px;
}

/* Loading e No Results */
.loading-tutoriais, .no-results {
    text-align: center;
    padding: 60px 20px;
}

.loading-tutoriais i {
    font-size: 3rem;
    color: var(--accent-primary);
    margin-bottom: 15px;
}

.no-results i {
    font-size: 4rem;
    color: var(--accent-primary);
    margin-bottom: 20px;
}

.no-results h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.no-results p {
    color: var(--text-secondary);
}

/* AdSense */
.adsense-container {
    padding: 30px 0;
    background: var(--bg-secondary);
    text-align: center;
}

.adsense-container.bottom {
    margin-top: 20px;
}

.adsense-container .container {
    min-height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Responsividade */
@media (max-width: 768px) {
    .biblioteca-hero {
        padding: 100px 0 30px;
    }
    
    .biblioteca-hero h1 {
        font-size: 1.8rem;
    }
    
    .tutoriais-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .filters-container {
        gap: 8px;
    }
    
    .filter-btn {
        padding: 6px 14px;
        font-size: 0.75rem;
    }
    
    .search-box input {
        padding: 12px 10px;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .biblioteca-hero h1 {
        font-size: 1.5rem;
    }
    
    .tutorial-card-info h3 {
        font-size: 1rem;
    }
}