/* ===== KALUM UPGRADE MODAL ===== */
.kalum-upgrade-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1100; /* Ensuring it sits above headers */
    opacity: 0;
    transition: opacity 0.3s ease;
}

.kalum-upgrade-overlay.active {
    opacity: 1;
}

.kalum-upgrade-content {
    background: #0a0a0a;
    padding: 1.5rem;
    border-radius: 1rem;
    width: 100%;
    max-width: 28rem;
    margin: 1rem;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(234, 179, 8, 0.3); /* Warning yellow border */
    transform: scale(0.95);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    color: #f3f4f6;
}

@media (min-width: 640px) {
    .kalum-upgrade-content { padding: 2rem; }
}

.kalum-upgrade-overlay.active .kalum-upgrade-content {
    transform: scale(1);
}

.kalum-upgrade-icon-wrapper {
    margin: 0 auto 1rem auto;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 3rem;
    width: 3rem;
    border-radius: 9999px;
    background-color: rgba(113, 63, 18, 0.5); 
}

.kalum-upgrade-icon {
    color: #facc15; 
    font-size: 1.5rem;
}

.kalum-upgrade-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #facc15;
    margin-bottom: 0.75rem;
}

.kalum-upgrade-message {
    color: #9ca3af; 
    margin-bottom: 1.5rem;
    font-size: 1rem;
    line-height: 1.5;
}

.kalum-upgrade-actions {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.kalum-upgrade-btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    font-size: 0.9rem;
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    border-radius: 0.75rem;
    background: #eab308;
    border: 1px solid #ca8a04;
    color: #ffffff;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    box-shadow: 0 4px 15px -5px rgba(234, 179, 8, 0.5);
}

.kalum-upgrade-btn-primary:hover {
    background: #ca8a04;
    transform: translateY(-2px);
    color: #ffffff;
}

.kalum-upgrade-btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    font-size: 0.875rem;
    color: #6b7280; 
    background: transparent;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    transition: color 0.2s ease;
}

.kalum-upgrade-btn-secondary:hover {
    color: #d1d5db; 
}