:root {
    --color-primary: #E91E63; /* Mary Kay Pink */
    --color-dark: #C2185B;    /* Darker Pink for hover */
    --color-light-bg: #FCE4EC; /* Very light pink background */
    --color-text: #333;       /* Dark grey for text */
    --color-text-muted: #6c757d; /* Muted text */
}

body {
    background: var(--color-light-bg) no-repeat center center !important; /* Fondo simple por ahora */
    background-size: cover;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif; /* More professional font */
    color: var(--color-text);
}

.login-card {
    width: 100%;
    max-width: 450px;
    background: rgba(255, 255, 255, 0.98); /* Slightly less transparent */
    border-radius: 15px;
    padding: 2.5rem; /* More padding */
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15); /* Stronger, softer shadow */
    border: 1px solid rgba(0, 0, 0, 0.05); /* Subtle border */
}

.login-card h4 {
    color: var(--color-dark);
    font-weight: 600;
    margin-top: 1rem;
}

.login-card .text-muted {
    color: var(--color-text-muted) !important;
}

.btn-primary {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    font-weight: 600;
    padding: 0.75rem 1.25rem; /* Larger buttons */
    border-radius: 8px; /* Slightly more rounded buttons */
}

.btn-primary:hover {
    background-color: var(--color-dark);
    border-color: var(--color-dark);
    transform: translateY(-1px); /* Subtle hover effect */
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.form-control {
    border-radius: 8px; /* Rounded inputs */
    padding: 0.75rem 1.25rem;
}

.form-control:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 0.25rem rgba(233, 30, 99, 0.25); /* Pink focus ring */
}

.input-group .btn-outline-secondary {
    border-color: #ced4da;
    color: var(--color-text-muted);
}

.input-group .btn-outline-secondary:hover {
    background-color: var(--color-light-bg);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.alert {
    border-radius: 8px;
    font-size: 0.9rem;
}

.alert-success {
    background-color: #d4edda;
    border-color: #c3e6cb;
    color: #155724;
}

.alert-danger {
    background-color: #f8d7da;
    border-color: #f5c6cb;
    color: #721c24;
}

.text-decoration-none {
    color: var(--color-primary) !important;
}

.text-decoration-none:hover {
    text-decoration: underline !important;
}

/* Adjust logo size and margin */
.login-card .text-center img {
    max-height: 120px; /* Larger logo */
    margin-bottom: 1.5rem; /* More space below logo */
}

/* Responsive adjustments */
@media (max-width: 576px) {
    .login-card {
        padding: 1.5rem;
        border-radius: 0; /* Full width on small screens */
        box-shadow: none;
    }
    body {
        padding: 0;
    }
}