/* Lock Screen Overlay */
#lock-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 10, 14, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
    transition: opacity 0.5s ease;
}

#lock-screen.hidden {
    opacity: 0;
    pointer-events: none;
}

.lock-content {
    background: var(--bg-card);
    padding: 3rem;
    border-radius: 24px;
    border: 1px solid var(--border-color);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    text-align: center;
    max-width: 400px;
    width: 90%;
    animation: slideUp 0.5s ease-out;
}

.lock-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.lock-title {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.lock-description {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.lock-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.lock-input {
    width: 100%;
    padding: 1rem;
    background: var(--bg-darker);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
    text-align: center;
    letter-spacing: 2px;
}

.lock-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.lock-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-purple));
    color: white;
    border: none;
    padding: 1rem;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.lock-btn:hover {
    transform: translateY(-2px);
    opacity: 0.9;
}

.lock-error {
    color: #ef4444;
    margin-top: 1rem;
    font-size: 0.875rem;
    min-height: 1.25rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lock-error.visible {
    opacity: 1;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}