/* ========== VARIÁVEIS CSS ========== */
:root {
    --primary-color: #007bff;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --dark-color: #343a40;
    --light-color: #f8f9fa;
}

/* ========== GERAL ========== */
body {
    background-color: #f5f5f5;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.navbar {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* ========== TABS ========== */
.nav-tabs {
    border-bottom: 2px solid #e0e0e0;
}

.nav-tabs .nav-link {
    color: #666;
    border: none;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.nav-tabs .nav-link:hover {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.nav-tabs .nav-link.active {
    color: var(--primary-color);
    background-color: transparent;
    border-bottom-color: var(--primary-color);
}

/* ========== CARDS ========== */
.card {
    border: none;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.card-header {
    background-color: #f8f9fa;
    border-bottom: 1px solid #e9ecef;
    border-radius: 8px 8px 0 0 !important;
}

.stats-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
}

.stats-card:nth-child(2) {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.stats-card:nth-child(3) {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.stats-card:nth-child(4) {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

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

.table thead th {
    background-color: #f8f9fa;
    font-weight: 600;
    border-color: #e9ecef;
    color: #495057;
}

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

/* ========== BOTÕES ========== */
.btn {
    border-radius: 5px;
    font-weight: 500;
    padding: 8px 16px;
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
}

.btn-success {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    border: none;
}

.btn-danger {
    background: linear-gradient(135deg, #f5576c 0%, #f093fb 100%);
    border: none;
}

.btn-sm {
    padding: 4px 8px;
    font-size: 0.875rem;
}

/* ========== INPUTS ========== */
.form-control,
.form-select {
    border-radius: 5px;
    border: 1px solid #ddd;
    padding: 10px 12px;
    transition: all 0.3s ease;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

/* ========== MODALS ========== */
.modal-content {
    border: none;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.modal-header {
    background-color: var(--primary-color);
    color: white;
    border-radius: 8px 8px 0 0;
}

.modal-header .btn-close {
    filter: brightness(0) invert(1);
}

/* ========== ALERTS ========== */
.alert {
    border: none;
    border-radius: 5px;
    margin-bottom: 1rem;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

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

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

/* ========== SPINNER/LOADER ========== */
.spinner-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 200px;
}

.spinner-border {
    width: 50px;
    height: 50px;
}

/* ========== BADGES ========== */
.badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-weight: 500;
    font-size: 0.875rem;
}

/* ========== CARDS DE SERVIDOR ========== */
.card-servidor {
    border-left: 4px solid var(--primary-color);
    margin-bottom: 1.5rem;
}

.card-servidor .card-header {
    background-color: #f8f9fa;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.status-badge {
    padding: 4px 8px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

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

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

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
    .nav-tabs {
        flex-wrap: nowrap;
        overflow-x: auto;
    }

    .nav-tabs .nav-link {
        padding: 0.5rem 0.75rem;
        font-size: 0.875rem;
    }

    .container-fluid {
        padding: 0.5rem;
    }
}

/* ========== UTILITÁRIOS ========== */
.text-muted {
    color: #6c757d !important;
}

.cursor-pointer {
    cursor: pointer;
}

.opacity-50 {
    opacity: 0.5;
}

/* ========== ANIMAÇÕES ========== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideInUp {
    from {
        transform: translateY(30px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.fade-in {
    animation: fadeIn 0.5s ease;
}

.slide-in-up {
    animation: slideInUp 0.5s ease;
}

/* ========== SCROLL BAR ========== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}