:root {
    --primary-color: #dc3545;
    --primary-hover: #c82333;
    --dark-color: #1a1a1a;
    --light-color: #ffffff;
    --gray-color: #f8f9fa;
    --border-color: #dee2e6;
}

body {
    background-color: var(--gray-color);
    color: var(--dark-color);
}

/* Navbar */
.navbar {
    background-color: var(--dark-color);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.navbar-brand {
    font-weight: 600;
    color: var(--light-color) !important;
}

.nav-link {
    color: var(--light-color) !important;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--primary-color) !important;
}

/* Cards */
.card {
    border: none;
    border-radius: 10px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.card-header {
    background-color: var(--light-color);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem;
}

.card-title {
    margin-bottom: 0;
    color: var(--dark-color);
    font-weight: 600;
}

/* Botões */
.btn {
    border-radius: 8px;
    padding: 0.5rem 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
}

.btn-outline-primary {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Tabelas */
.table {
    margin-bottom: 0;
}

.table th {
    background-color: var(--gray-color);
    border-bottom: 2px solid var(--border-color);
    color: var(--dark-color);
    font-weight: 600;
}

.table td {
    vertical-align: middle;
}

.table-hover tbody tr:hover {
    background-color: rgba(220, 53, 69, 0.05);
}

/* Formulários */
.form-control {
    border-radius: 8px;
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
}

.form-label {
    font-weight: 500;
    color: var(--dark-color);
}

/* Modais */
.modal-content {
    border: none;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.modal-header {
    border-bottom: 1px solid var(--border-color);
    padding: 1rem;
}

.modal-footer {
    border-top: 1px solid var(--border-color);
    padding: 1rem;
}

/* Alertas */
.alert {
    border: none;
    border-radius: 8px;
    padding: 1rem;
}

/* Badges */
.badge {
    padding: 0.5em 0.75em;
    font-weight: 500;
    border-radius: 6px;
}

/* Animações */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.3s ease-out;
}

/* Responsividade */
@media (max-width: 768px) {
    .card {
        margin-bottom: 1rem;
    }
    
    .table-responsive {
        margin-bottom: 0;
    }
    
    .btn {
        width: 100%;
        margin-bottom: 0.5rem;
    }
}