:root {
    --brand-dark: #1c2b39;
    --brand-primary: #2d4a63;
    --brand-accent: #0d6efd;
}

body {
    background-color: #f4f6f9;
}

.sidebar {
    width: 260px;
    min-height: 100vh;
    background-color: var(--brand-dark);
    position: sticky;
    top: 0;
}

.sidebar .nav-link {
    border-radius: .5rem;
    opacity: .85;
}

.sidebar .nav-link:hover {
    background-color: rgba(255, 255, 255, .08);
    opacity: 1;
}

.sidebar .nav-link.active {
    background-color: var(--brand-accent);
    opacity: 1;
}

.main-content {
    min-width: 0;
}

.card {
    border: none;
    box-shadow: 0 1px 3px rgba(0, 0, 0, .08);
}

.table-concentrado thead th {
    position: sticky;
    top: 0;
    background: #212529;
    color: #fff;
    z-index: 2;
    font-size: .78rem;
    white-space: nowrap;
}

.table-concentrado tbody td {
    font-size: .82rem;
    white-space: nowrap;
}

.table-concentrado tr.row-proyecto td {
    background-color: #e9ecef;
    font-weight: 600;
}

.progress {
    height: .55rem;
}

.login-wrapper {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--brand-dark), var(--brand-primary));
}

.login-card {
    max-width: 380px;
    width: 100%;
}