:root {
    --cor-primaria: #5dade2;
    --cor-secundaria: #48c774;
    --cor-navbar: #1a1a2e;
    --cor-sidebar: #16213e;
    --cor-texto-nav: #e0e0e0;
    --cor-fundo: #0f3460;
    --cor-card: #1a1a2e;
    --sombra-card: 0 1px 3px rgba(0,0,0,0.4);
}
body { background-color: #121212 !important; color: #e0e0e0 !important; }
.sga-navbar { background: var(--cor-navbar) !important; border-bottom: 1px solid #333; }
.sga-sidebar { background: var(--cor-sidebar) !important; border-right: 1px solid #333; }
.card { background: var(--cor-card) !important; border-color: #333; color: #e0e0e0; }
.card-header { background: #1e1e2e !important; color: #e0e0e0 !important; }
.table { color: #e0e0e0 !important; }
.table-light { background-color: #1e1e2e !important; color: #ccc !important; }
.form-control, .form-select {
    background: #1e1e2e !important;
    color: #e0e0e0 !important;
    border-color: #444 !important;
}
.sga-main { background: #121212 !important; }