.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--overlay-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 20000;
    opacity: 1;
    transition: opacity 0.2s ease;
}

/* Confirmation modal should always be on top */
.modal-overlay.confirmation-modal {
    z-index: 20001;
    background-color: var(--overlay-bg-heavy);
}

.modal-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.modal-content {
    background-color: var(--bg-surface);
    width: 100%;
    max-width: 500px;
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
    transform: translateY(0);
    transition: transform 0.2s ease;
}

.modal-overlay.hidden .modal-content {
    transform: translateY(20px);
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--text-primary);
}

.model-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.close-btn {
    font-size: 1.5rem;
    color: var(--text-secondary);
    padding: 4px;
    line-height: 1;
}

.modal-body {
    padding: 24px;
}

.setting-item {
    margin-bottom: 20px;
}

.setting-item:last-child {
    margin-bottom: 0;
}

.setting-item label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-primary);
}

select {
    width: 100%;
    padding: 10px;
    border-radius: 8px;
    background-color: var(--bg-body);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 1rem;
}

.toggle-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.toggle-label input {
    display: none;
}

.toggle-switch {
    width: 40px;
    height: 24px;
    background-color: var(--border-color);
    /* Visible gray */
    border-radius: 12px;
    position: relative;
    transition: background-color 0.2s;
}

.toggle-switch::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background-color: white;
    border-radius: 50%;
    transition: transform 0.2s;
}

input:checked+.toggle-switch {
    background-color: var(--accent-color);
}

input:checked+.toggle-switch::after {
    transform: translateX(16px);
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* Chain Gems List with scroll shadow */
.chain-gems-draggable {
    max-height: 300px;
    overflow-y: auto;
    padding-right: 4px;
    position: relative;
}


.chain-gems-draggable::-webkit-scrollbar {
    width: 6px;
}

.chain-gems-draggable::-webkit-scrollbar-track {
    background: transparent;
}

.chain-gems-draggable::-webkit-scrollbar-thumb {
    background-color: var(--border-color);
    border-radius: 3px;
}

.chain-gems-draggable::-webkit-scrollbar-thumb:hover {
    background-color: var(--text-tertiary);
}

/* Chain Toggle Switch - New Implementation */
.chain-toggle-switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}

.chain-toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--bg-surface);
    transition: 0.3s;
    border-radius: 24px;
    border: 2px solid var(--border-color);
}

.chain-toggle-slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 2px;
    bottom: 2px;
    /* Default dark theme overrides removed in favor of variables where possible */
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    box-shadow: 0 8px 32px var(--glass-shadow, rgba(0, 0, 0, 0.4));
    transition: 0.3s;
    border-radius: 50%;
}

.chain-toggle-checkbox:checked+.chain-toggle-switch .chain-toggle-slider {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
}

.chain-toggle-checkbox:checked+.chain-toggle-switch .chain-toggle-slider:before {
    transform: translateX(20px);
    left: 2px;
}

.chain-toggle-checkbox:disabled+.chain-toggle-switch {
    opacity: 0.6;
    cursor: not-allowed;
}

.chain-toggle-checkbox:disabled+.chain-toggle-switch .chain-toggle-slider {
    cursor: not-allowed;
}

.btn-secondary,
.btn-primary {
    padding: 10px 20px;
    border-radius: 20px;
    font-weight: 500;
    font-size: 0.875rem;
}

.btn-secondary {
    color: var(--accent-color);
}

.btn-secondary:hover {
    background-color: rgba(168, 199, 250, 0.1);
}

.btn-primary {
    background-color: var(--accent-color);
    color: white !important;
    border: none;
}

.btn-primary:hover {
    opacity: 0.9;
    background-color: var(--accent-hover);
}

/* Chain Flow Chart */
.chain-flow-chart {
    background: linear-gradient(135deg, var(--bg-surface) 0%, var(--bg-surface-hover) 100%);
}

.chain-flow-nodes {
    justify-content: center;
    padding: 8px 0;
}

.flow-node {
    transition: transform 0.2s ease;
}

.flow-node:hover {
    transform: translateY(-2px);
}

.flow-arrow {
    animation: flow-pulse 1.5s ease-in-out infinite;
}

@keyframes flow-pulse {

    0%,
    100% {
        opacity: 0.6;
    }

    50% {
        opacity: 1;
    }
}

/* Gem Selection Modal */
#gem-selection-list {
    overflow-x: hidden;
}

.gem-selection-item {
    flex-shrink: 0;
}

.gem-selection-search input:focus {
    border-color: var(--accent-color);
    outline: none;
}

/* Advanced Cropping Styles */
.crop-container {
    position: relative;
    user-select: none;
    overflow: hidden;
    background: var(--bg-body);
    max-height: 500px;
}

.crop-image-underlay {
    display: block;
    max-width: 100%;
    pointer-events: none;
}

.crop-selection-area {
    position: absolute;
    box-shadow: 0 0 0 9999px var(--overlay-bg-heavy);
    border: 1px dashed white;
    cursor: move;
    z-index: 10;
}

.crop-handle {
    position: absolute;
    width: 10px;
    height: 10px;
    background: white;
    border: 1px solid var(--border-color);
    z-index: 11;
}

/* Corner handles */
.handle-tl {
    top: -5px;
    left: -5px;
    cursor: nw-resize;
}

.handle-tr {
    top: -5px;
    right: -5px;
    cursor: ne-resize;
}

.handle-bl {
    bottom: -5px;
    left: -5px;
    cursor: sw-resize;
}

.handle-br {
    bottom: -5px;
    right: -5px;
    cursor: se-resize;
}

/* Side handles */
.handle-t {
    top: -5px;
    left: 50%;
    margin-left: -5px;
    cursor: n-resize;
}

.handle-b {
    bottom: -5px;
    left: 50%;
    margin-left: -5px;
    cursor: s-resize;
}

.handle-l {
    left: -5px;
    top: 50%;
    margin-top: -5px;
    cursor: w-resize;
}

.handle-r {
    right: -5px;
    top: 50%;
    margin-top: -5px;
    cursor: e-resize;
}