/* ===== Variáveis de Cor ===== */
:root {
    --primary: #0d6efd;
    --success: #198754;
    --warning: #ffc107;
    --danger: #dc3545;
    --info: #0dcaf0;
    --light-bg: #f8f9fa;
    --border-radius: 8px;
}

/* ===== Layout Geral ===== */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: #f5f7fa;
    color: #2d3748;
}

.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,.08);
    padding: 1rem 0;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
}

main {
    padding-top: 2rem;
    padding-bottom: 3rem;
}

/* ===== Cards ===== */
.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: 0 1px 3px rgba(0,0,0,.08);
    margin-bottom: 1.5rem;
    transition: box-shadow 0.2s;
}

.card:hover {
    box-shadow: 0 4px 6px rgba(0,0,0,.12);
}

.card-header {
    background-color: #fff;
    border-bottom: 2px solid #f1f3f5;
    font-weight: 600;
    padding: 1rem 1.5rem;
}

/* ===== KPI Cards (Dashboard) ===== */
.kpi-card {
    border-left: 4px solid;
    transition: transform 0.2s;
}

.kpi-card:hover {
    transform: translateY(-2px);
}

.kpi-card.border-primary { border-left-color: var(--primary); }
.kpi-card.border-success { border-left-color: var(--success); }
.kpi-card.border-warning { border-left-color: var(--warning); }
.kpi-card.border-info { border-left-color: var(--info); }
.kpi-card.border-danger { border-left-color: var(--danger); }

.kpi-value {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
    margin: 0.5rem 0;
}

.kpi-label {
    text-transform: uppercase;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    color: #6c757d;
    margin-bottom: 0.25rem;
}

.kpi-sublabel {
    font-size: 0.875rem;
    color: #6c757d;
}

/* ===== Badges de Status ===== */
.badge {
    padding: 0.4em 0.8em;
    font-weight: 600;
    font-size: 0.75rem;
    letter-spacing: 0.3px;
}

/* ===== Tabelas ===== */
.table {
    background: white;
}

.table thead th {
    border-bottom: 2px solid #dee2e6;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
    color: #6c757d;
    padding: 1rem 0.75rem;
}

.table tbody tr {
    transition: background-color 0.15s;
}

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

/* ===== Botões ===== */
.btn {
    padding: 0.5rem 1.25rem;
    font-weight: 600;
    border-radius: 6px;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-success {
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    border: none;
}

.btn-success:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(17, 153, 142, 0.4);
}

/* ===== Formulários ===== */
.form-label {
    font-weight: 600;
    font-size: 0.875rem;
    color: #495057;
    margin-bottom: 0.5rem;
}

.form-control, .form-select {
    border: 2px solid #e9ecef;
    border-radius: 6px;
    padding: 0.625rem 0.875rem;
    transition: border-color 0.2s;
}

.form-control:focus, .form-select:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.15);
}

/* ===== Alerts ===== */
.alert {
    border: none;
    border-radius: var(--border-radius);
    border-left: 4px solid;
}

.alert-success { border-left-color: var(--success); background-color: #d1e7dd; }
.alert-danger { border-left-color: var(--danger); background-color: #f8d7da; }
.alert-warning { border-left-color: var(--warning); background-color: #fff3cd; }
.alert-info { border-left-color: var(--info); background-color: #cff4fc; }

/* ===== Timeline (Audit Trail) ===== */
.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #e9ecef;
}

.timeline-item {
    position: relative;
    padding-bottom: 1.5rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -1.5rem;
    top: 4px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--primary);
    border: 2px solid white;
    box-shadow: 0 0 0 2px #e9ecef;
}

/* ===== Stats Grid ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

/* ===== Empty State ===== */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: #6c757d;
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.3;
}

/* ===== Responsivo ===== */
@media (max-width: 768px) {
    .kpi-value {
        f

/* ===== Timeline Melhorada ===== */
.timeline {
    position: relative;
    padding-left: 2.5rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 10px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, #667eea 0%, #764ba2 100%);
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    padding-bottom: 2rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -1.75rem;
    top: 4px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: white;
    border: 3px solid #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    z-index: 1;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

/* ===== Gradient Backgrounds ===== */
.bg-gradient {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
}

/* ===== Card Hover Effects ===== */
.card {
    transition: transform 0.2s, box-shadow 0.2s;
}

.card-hover:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0,0,0,.15) !important;
}

/* ===== Breadcrumb Custom ===== */
.breadcrumb {
    background: transparent;
    padding: 0;
    margin-bottom: 1rem;
}

.breadcrumb-item + .breadcrumb-item::before {
    content: "›";
    font-size: 1.25rem;
}

/* ===== Icon Circles ===== */
.icon-circle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

/* ===== Animated Underline for Links ===== */
a.link-animated {
    position: relative;
    text-decoration: none;
}

a.link-animated::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -2px;
    left: 0;
    background-color: currentColor;
    transition: width 0.3s;
}

a.link-animated:hover::after {
    width: 100%;
}

/* ===== Flash Messages Animation ===== */
.flash-messages .alert {
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Mobile Improvements ===== */
@media (max-width: 768px) {
    .kpi-value {
        font-size: 1.75rem;
    }
    
    h1 {
        font-size: 1.75rem;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .btn-lg {
        padding: 0.5rem 1rem;
        font-size: 1rem;
    }
}

/* ===== CTA Footer Card ===== */
.cta-footer {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    color: white !important;
}

.cta-footer h4,
.cta-footer p {
    color: white !important;
}

.cta-footer .btn-light {
    background: white !important;
    color: #667eea !important;
    font-weight: 600;
    border: none;
}

.cta-footer .btn-light:hover {
    background: #f8f9fa !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255,255,255,0.3);
}

.cta-footer .btn-outline-light {
    border-color: white !important;
    color: white !important;
}

.cta-footer .btn-outline-light:hover {
    background: white !important;
    color: #667eea !important;
}