/* Reset e Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: #f5f7fa;
    color: #333;
    line-height: 1.6;
}

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

/* Menu de Navegação */
.main-nav {
    background: white;
    padding: 15px 30px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    margin-bottom: 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-size: 1.3rem;
    font-weight: 700;
    color: #2196f3;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 25px;
}

.nav-link {
    color: #666;
    text-decoration: none;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 8px;
    transition: all 0.2s;
}

.nav-link:hover,
.nav-link.active {
    color: #2196f3;
    background: #e3f2fd;
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 15px;
    padding-left: 25px;
    border-left: 1px solid #e0e0e0;
}

.nav-user span {
    color: #555;
    font-weight: 500;
}

.btn-logout {
    color: #ff4757;
    text-decoration: none;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 6px;
    transition: all 0.2s;
}

.btn-logout:hover {
    background: #fee;
}

/* Header */
header {
    background: white;
    padding: 20px 30px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    margin-bottom: 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 {
    font-size: 1.8rem;
    color: #2c3e50;
}

.stats {
    display: flex;
    gap: 20px;
}

.stat {
    background: #e3f2fd;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    color: #1976d2;
}

.stat strong {
    color: #0d47a1;
}

/* Botões */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
}

.btn-primary {
    background: #2196f3;
    color: white;
}

.btn-primary:hover {
    background: #1976d2;
}

.btn-secondary {
    background: #e0e0e0;
    color: #555;
}

.btn-secondary:hover {
    background: #bdbdbd;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 1rem;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.85rem;
}

/* Alertas */
.alert {
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-danger {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Barra de Ações */
.actions-bar {
    background: white;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    margin-bottom: 25px;
}

.search-form {
    display: flex;
    gap: 12px;
    align-items: center;
}

.search-input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.2s;
}

.search-input:focus {
    outline: none;
    border-color: #2196f3;
}

/* Tabela */
.table-container {
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    overflow: hidden;
    margin-bottom: 25px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th {
    background: #f8f9fa;
    padding: 15px;
    text-align: left;
    font-weight: 600;
    color: #555;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid #e0e0e0;
}

.data-table td {
    padding: 15px;
    border-bottom: 1px solid #f0f0f0;
    vertical-align: middle;
}

.data-table tr:hover {
    background: #f8f9fa;
}

.data-table .empty {
    text-align: center;
    padding: 50px;
    color: #888;
    font-style: italic;
}

/* Imagem */
.thumb {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
}

.no-image {
    width: 60px;
    height: 60px;
    background: #f0f0f0;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

/* Produto */
.data-table td:nth-child(3) strong {
    display: block;
    color: #2c3e50;
    margin-bottom: 4px;
}

.data-table td:nth-child(3) .date {
    color: #888;
    font-size: 0.85rem;
}

/* Preço */
.price {
    font-weight: 600;
    color: #2e7d32;
    font-size: 1rem;
}

/* Estoque */
.stock {
    text-align: center;
    font-weight: 500;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.badge-success {
    background: #d4edda;
    color: #155724;
}

.badge-warning {
    background: #fff3cd;
    color: #856404;
}

.badge-info {
    background: #d1ecf1;
    color: #0c5460;
}

.badge-danger {
    background: #f8d7da;
    color: #721c24;
}

/* Paginação */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
}

.page-info {
    color: #666;
    font-size: 0.95rem;
}

/* Formulário */
.form-container {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    margin-bottom: 25px;
}

.product-form {
    max-width: 100%;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #555;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: #2196f3;
}

textarea.form-control {
    resize: vertical;
    min-height: 150px;
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 0.9rem;
}

.form-row {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.form-row .form-group {
    flex: 1;
    margin-bottom: 0;
}

.col-3 { flex: 0 0 25%; }
.col-4 { flex: 0 0 33.333%; }

.checkbox-group {
    display: flex;
    align-items: flex-end;
    padding-bottom: 12px;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
    width: 20px;
    height: 20px;
}

/* Input Group */
.input-group {
    display: flex;
    align-items: center;
}

.input-prefix {
    background: #f0f0f0;
    padding: 12px 16px;
    border: 2px solid #e0e0e0;
    border-right: none;
    border-radius: 8px 0 0 8px;
    font-weight: 500;
    color: #666;
}

.input-group .form-control {
    border-radius: 0 8px 8px 0;
}

/* Help Text */
.help-text {
    display: block;
    margin-top: 6px;
    color: #888;
    font-size: 0.85rem;
}

/* Form Actions */
.form-actions {
    display: flex;
    gap: 15px;
    padding-top: 20px;
    border-top: 1px solid #e0e0e0;
}

/* Preview Box */
.preview-box {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.preview-box h3 {
    margin-bottom: 20px;
    color: #555;
    font-size: 1.1rem;
}

.preview-content {
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
}

/* Footer */
footer {
    text-align: center;
    padding: 20px;
    color: #888;
    font-size: 0.9rem;
}

footer strong {
    color: #555;
}

/* Código SKU */
code {
    background: #f0f0f0;
    padding: 4px 8px;
    border-radius: 4px;
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 0.85rem;
    color: #555;
}

/* Responsivo */
@media (max-width: 768px) {
    .main-nav {
        flex-direction: column;
        gap: 15px;
        padding: 15px;
    }
    
    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
    }
    
    .nav-user {
        border-left: none;
        border-top: 1px solid #e0e0e0;
        padding-top: 15px;
        padding-left: 0;
        width: 100%;
        justify-content: center;
    }
    
    header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .search-form {
        flex-direction: column;
    }
    
    .search-input {
        width: 100%;
    }
    
    .form-row {
        flex-direction: column;
        gap: 0;
    }
    
    .form-row .form-group {
        margin-bottom: 20px;
    }
    
    .col-3, .col-4 {
        flex: 1;
    }
    
    .data-table {
        font-size: 0.85rem;
    }
    
    .data-table th,
    .data-table td {
        padding: 10px;
    }
}