body {
    background-color: #f4f6f9;
}
.card {
    border: none;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
table.table thead {
    background-color: #eef1f5;
}
.evidence-thumb {
    width: 110px;
    height: 110px;
    object-fit: cover;
    border-radius: 6px;
    border: 1px solid #dee2e6;
}
.fc-event {
    cursor: pointer;
    border: none !important;
}
.stat-card .fs-3 {
    font-weight: 700;
}
.doc-card, .maint-card {
    border-left: 4px solid #dee2e6;
}
.doc-card.vigente { border-left-color: #198754; }
.doc-card.por_vencer { border-left-color: #ffc107; }
.doc-card.vencido { border-left-color: #dc3545; }
.navbar-brand { letter-spacing: 0.5px; }
.tracking-hero {
    background: linear-gradient(135deg, #0b3d59, #145374);
    color: #fff;
}