:root {
    --primary: #FF6B35;
    --secondary: #00D9FF;
}

.ui-locked button {
    pointer-events: none;
    opacity: 0.5;
}


.btn {
    padding: 16px 40px;
    background: linear-gradient(135deg, var(--primary), #ff8563);
     border: none;
    border-radius: 8px;
    color: white;
    font-family: 'Orbitron', sans-serif;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.3);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(255, 107, 53, 0.5);
}

.btn:hover::before {
    left: 100%;
}

.btn:active {
    transform: translateY(0);
}

.btn-secondary {
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.2), rgba(0, 217, 255, 0.1));
    border: 2px solid var(--secondary);
    box-shadow: 0 4px 15px rgba(0, 217, 255, 0.2);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.3), rgba(0, 217, 255, 0.2));
    box-shadow: 0 6px 25px rgba(0, 217, 255, 0.4);
}

#loadingOverlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(5, 7, 20, 0.85);
    backdrop-filter: blur(6px);
    display: flex;
    align-items: center; 
    justify-content: center; 
    gap: 20px; 
    z-index: 2000;
    font-family: 'Orbitron', sans-serif;
    opacity: 1;
    transition: opacity 0.6s ease-in-out;
}

.loadingText {
    font-size: 2rem;
    color: var(--secondary);
    letter-spacing: 3px;
    animation: pulseLoading 1.2s infinite ease-in-out;
    margin: 0; 
}

@keyframes pulseLoading {
    0% { opacity: 0.3; }
    50% { opacity: 1; }
    100% { opacity: 0.3; }
}

#loadingOverlay {
    opacity: 1;
    transition: opacity 0.6s ease-in-out;
}

#loadingOverlay.fade-out {
    opacity: 0;
    pointer-events: none;
}

.loadingSpinner {
    width: 60px;
    height: 60px;
    border: 6px solid rgba(0, 217, 255, 0.15);
    border-top-color: var(--secondary);
    border-radius: 50%;
    animation: spin 0.9s linear infinite;
    margin-bottom: 0; 
    box-shadow: 0 0 20px rgba(0, 217, 255, 0.4);
    flex-shrink: 0; 
}

@keyframes spin {
    to { transform: rotate(360deg); }
}