:root {
    --sup-celeste: #00B6DE;
    --sup-azul: #045796;
    --sup-verde: #8DC63F;
    --sup-gris-claro: #BCBEC0;
    --sup-gris-oscuro: #808285;
    --bg: #f5f8fb;
}

body {
    background: var(--bg);
    color: #243447;
}

.auth-bg {
    background: linear-gradient(135deg, var(--sup-azul), var(--sup-celeste));
}

.login-logo,
.brand-mark {
    background: var(--sup-verde);
    color: white;
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
}

.app-shell {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 270px;
    background: var(--sup-azul);
    color: white;
    padding: 22px;
}

.sidebar-brand {
    display: flex;
    gap: 12px;
    align-items: center;
    margin-bottom: 28px;
}

.sidebar-brand small {
    display: block;
    color: #d9f7ff;
}

.sidebar-nav a {
    display: block;
    color: #eefcff;
    text-decoration: none;
    padding: 11px 12px;
    border-radius: 12px;
    margin-bottom: 7px;
}

.sidebar-nav a.active,
.sidebar-nav a:hover {
    background: var(--sup-celeste);
    color: white;
}

.app-content {
    flex: 1;
}

.topbar {
    background: white;
    border-bottom: 1px solid #e8edf3;
    padding: 18px 28px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.topbar h1 {
    font-size: 1.25rem;
    margin: 0;
}

.topbar p {
    color: var(--sup-gris-oscuro);
    margin: 0;
    font-size: .9rem;
}

.kpi-card {
    background: white;
    border: 0;
    border-radius: 18px;
    padding: 22px;
    box-shadow: 0 6px 20px rgba(4, 87, 150, 0.08);
    border-left: 5px solid var(--sup-celeste);
}

.kpi-card span {
    display: block;
    color: var(--sup-gris-oscuro);
}

.kpi-card strong {
    display: block;
    font-size: 2rem;
    color: var(--sup-azul);
}