.display-container {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.display-container input {
    flex: 1;
    padding: 0.75rem;
    border: 2px solid var(--border);
    border-radius: 6px;
    font-family: 'Courier New', monospace;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.display-container input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.display-container .btn {
    padding: 0.75rem 1.5rem;
    white-space: nowrap;
}

.settings-grid {
    background: var(--light);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
}

.setting {
    margin-bottom: 1.5rem;
}

.setting label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--dark);
}

.setting input[type="range"] {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--border);
    outline: none;
    -webkit-appearance: none;
}

.setting input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    transition: background 0.2s ease;
}

.setting input[type="range"]::-webkit-slider-thumb:hover {
    background: var(--primary-dark);
}

.setting input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    border: none;
    transition: background 0.2s ease;
}

.setting input[type="range"]::-moz-range-thumb:hover {
    background: var(--primary-dark);
}

.options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.options label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: normal;
    cursor: pointer;
    user-select: none;
}

.options input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--primary);
}

@media (max-width: 768px) {
    .display-container {
        flex-direction: column;
    }

    .options {
        grid-template-columns: 1fr;
    }
}

    display: flex;
    background: #f1f5f9;
    padding: 10px;
    border-radius: 8px;
    margin-bottom: 1.5rem;
}

#password-display {
    width: 100%;
    background: none;
    border: none;
    font-family: 'Courier New', monospace;
    font-size: 1.2rem;
    color: #1e293b;
    outline: none;
}

.settings-grid {
    text-align: left;
    margin-bottom: 1.5rem;
}

.options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    /* Two columns on PC/Tab */
    gap: 10px;
    margin-top: 1rem;
}

@media (max-width: 480px) {
    .options {
        grid-template-columns: 1fr;
        /* Single column on Phones */
    }
}

.main-btn {
    width: 100%;
    padding: 12px;
    background: #2563eb;
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
}

.main-btn:hover {
    background: #1d4ed8;
}