/* ── Fondo ── */
.login-body {
    min-height: 100vh;
    background: linear-gradient(135deg, #1a237e 0%, #1565c0 50%, #0288d1 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Segoe UI', sans-serif;
}

/* ── Tarjeta ── */
.login-wrapper {
    width: 100%;
    max-width: 420px;
    padding: 1rem;
}

.login-card {
    border: none;
    border-radius: 1rem;
    overflow: hidden;
}

/* ── Encabezado ── */
.login-header {
    background: linear-gradient(135deg, #1a237e, #1565c0);
    color: #fff;
    padding: 2rem 1.5rem 1.5rem;
}

.login-logo {
    width: 72px;
    height: 72px;
    object-fit: contain;
    filter: brightness(0) invert(1);
}

/* ── Inputs ── */
.form-control-lg {
    border-radius: 0.5rem;
    font-size: 0.95rem;
}

.form-control:focus {
    border-color: #1565c0;
    box-shadow: 0 0 0 0.2rem rgba(21, 101, 192, 0.25);
}

/* ── Botón ── */
.btn-primary {
    background: linear-gradient(135deg, #1a237e, #1565c0);
    border: none;
    border-radius: 0.5rem;
    letter-spacing: 0.03em;
    transition: opacity 0.2s;
}

.btn-primary:hover {
    opacity: 0.9;
}

/* ── Footer ── */
.card-footer {
    background: #f8f9fa;
    font-size: 0.8rem;
}