html, body {
    margin: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background:
    radial-gradient(circle at 50% 30%, #f8fbff 0%, #e8edf5 38%, #cfd6e2 100%);
    font-family: Arial, sans-serif;
}
body.dark-mode {
    background: radial-gradient(circle at 50% 30%, #242a37 0%, #11151e 48%, #080a10 100%);
}
#app {
    position: relative;
    width: 100%;
    height: 100%;
    z-index: 2;
}
#screenImageBackLayer,
#screenImageFrontLayer {
    position: fixed;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}
#screenImageBackLayer {
    z-index: 1;
}
#screenImageFrontLayer {
    z-index: 3;
}
body.back-screen-image-selected #app {
    pointer-events: none;
}
.screen-image {
    position: absolute;
    display: block;
    width: min(38vw, 420px);
    max-width: calc(100vw - 24px);
    max-height: 55vh;
    object-fit: contain;
    cursor: default;
    pointer-events: none;
    user-select: none;
    filter: drop-shadow(0 8px 18px rgba(18, 26, 40, .2));
}
.screen-image[data-shadow="false"] {
    filter: none;
}
.screen-image.selected {
    outline: 2px solid #4b8cff;
    outline-offset: 2px;
    cursor: grab;
}
.screen-image.dragging {
    cursor: grabbing;
}
#cameraFeed {
    position: fixed;
    inset: 0;
    z-index: 0;
    display: none;
    width: 100%;
    height: 100%;
    object-fit: cover;
    background: #10131a;
}
.background-image-layer {
    position: fixed;
    inset: 0;
    z-index: 1;
    overflow: hidden;
    pointer-events: none;
}
.background-image-layer img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.lightstick-decor-layer {
    position: fixed;
    inset: 0;
    z-index: 1;
    overflow: hidden;
    pointer-events: none;
}
.lightstick-decor-pattern {
    position: absolute;
    inset: 0;
    background-color: var(--decor-color);
    mask-position: center;
    mask-repeat: no-repeat;
    mask-size: cover;
    -webkit-mask-position: center;
    -webkit-mask-repeat: no-repeat;
    -webkit-mask-size: cover;
}
#dotDecorLayer {
    mask-image: url("img/dot.png");
    -webkit-mask-image: url("img/dot.png");
}
#heartDecorLayer {
    mask-image: url("img/heart.png");
    -webkit-mask-image: url("img/heart.png");
}
#miniHeartDecorLayer {
    mask-image: url("img/mini_heart.png");
    -webkit-mask-image: url("img/mini_heart.png");
}
body.capture-mode .lightstick-decor-layer {
    display: block;
}
body:not(.capture-mode) .lightstick-decor-layer {
    display: none;
}
body.camera-active #cameraFeed {
    display: block;
}
body.front-camera-active #cameraFeed {
    transform: scaleX(-1);
}
.capture-frame,
.capture-frame img,
.phone-top-frame,
.phone-bottom-frame,
#phoneCaptureButton,
#phoneInvertButton,
.phone-flash-trigger {
    display: none;
}
.capture-frame {
    position: fixed;
    inset: 0;
    z-index: 20;
    pointer-events: none;
}
body.capture-mode .capture-frame {
    display: block;
}
.phone-capture-intro {
    position: fixed;
    inset: 0;
    z-index: 60;
    overflow: hidden;
    background: rgba(255, 255, 255, .4);
    cursor: pointer;
    touch-action: manipulation;
}
.phone-capture-intro[hidden] {
    display: none;
}
.phone-capture-intro img {
    position: absolute;
    display: block;
    width: 100%;
    height: auto;
    pointer-events: none;
    user-select: none;
    -webkit-user-drag: none;
}
.phone-capture-intro-top {
    top: 0;
    left: 0;
}
.phone-capture-intro-bottom {
    bottom: 0;
    left: 0;
}
.phone-capture-intro-middle {
    top: 50%;
    left: 50%;
    width: min(80vw, 42vh);
    max-height: 80vh;
    transform: translate(-50%, -50%);
}
body.capture-mode .ui,
body.capture-mode .part-panel {
    display: none;
}
body.capture-mode .capture-frame .desktop-frame {
    display: block;
    width: 100%;
    height: 100%;
}
body.capture-mode .capture-frame .desktop-overlay {
    position: absolute;
    display: block;
    width: min(32vw, 42vh);
    height: auto;
    pointer-events: auto;
    cursor: pointer;
    user-select: none;
    -webkit-user-drag: none;
}
body.capture-mode .capture-frame .desktop-left-top {
    top: 0;
    left: 0;
}
body.capture-mode .capture-frame .desktop-left-bottom {
    bottom: 0;
    left: 0;
}
body.capture-mode .capture-frame .desktop-middle-bottom {
    bottom: 0;
    left: 50%;
    width: min(16vw, 21vh);
    transform: translateX(-50%);
}
body.capture-mode .capture-frame .desktop-right-top {
    top: 0;
    right: 0;
}
body.capture-mode .capture-frame .desktop-right-bottom {
    right: 0;
    bottom: 0;
}
body.capture-mode.frame-off .capture-frame .desktop-overlay,
body.capture-mode.frame-off .capture-frame .phone-frame,
body.capture-mode.frame-off .capture-frame .phone-top-frame,
body.capture-mode.frame-off .capture-frame .phone-bottom-frame,
body.capture-mode.frame-off #phoneCaptureButton,
body.capture-mode.frame-off .phone-flash-trigger {
    display: none;
}
body.capture-mode.frame-color-inverted .capture-frame .phone-frame,
body.capture-mode.frame-color-inverted .capture-frame .phone-bottom-frame .phone-bottom {
    filter: invert(1);
}
body.capture-mode .capture-frame .phone-frame {
    position: absolute;
    display: block;
    width: 100%;
    height: auto;
    pointer-events: auto;
    cursor: pointer;
    user-select: none;
    -webkit-user-drag: none;
}
body.capture-mode .capture-frame .phone-top-frame {
    position: absolute;
    top: 0;
    left: 0;
    display: block;
    width: 100%;
}
body.capture-mode .capture-frame .phone-top {
    position: relative;
    display: block;
    width: 100%;
    height: auto;
}
body.capture-mode .capture-frame .phone-top {
    top: 0;
}
body.capture-mode .phone-flash-trigger {
    position: absolute;
    top: 70%;
    left: 6.8%;
    z-index: 2;
    display: block;
    width: clamp(34px, 6vw, 64px);
    aspect-ratio: 1;
    padding: 0;
    transform: translate(-50%, -50%);
    border: 0;
    border-radius: 50%;
    background: transparent;
    pointer-events: auto;
    cursor: pointer;
    touch-action: manipulation;
}
body.capture-mode .phone-flash-trigger:focus-visible {
    outline: 2px solid #4b8cff;
    outline-offset: 2px;
}
.phone-flash-controls {
    position: fixed;
    top: calc(12.5vw + env(safe-area-inset-top) + 10px);
    left: max(12px, env(safe-area-inset-left));
    z-index: 55;
    display: grid;
    gap: 0;
    width: min(270px, calc(100vw - 24px));
    max-height: calc(100vh - 12.5vw - env(safe-area-inset-top) - 24px);
    box-sizing: border-box;
    overflow-y: auto;
    overscroll-behavior: contain;
    padding: 14px;
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    background: var(--glass-bg);
    color: var(--ui-text);
    box-shadow: var(--ui-shadow);
    pointer-events: auto;
    backdrop-filter: blur(24px) saturate(130%);
    -webkit-backdrop-filter: blur(24px) saturate(130%);
    font-size: 12px;
}
.phone-flash-controls[hidden] {
    display: none !important;
}
.phone-flash-light-options {
    display: grid;
    gap: 0;
}
.phone-flash-light-options[hidden] {
    display: none;
}
.phone-flash-controls-heading,
.phone-flash-controls > #phoneLightToggle,
.phone-flash-light-options > :not(:last-child) {
    margin-bottom: 9px;
}
.phone-flash-controls-heading,
.phone-flash-option > span {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}
.phone-flash-controls-heading {
    padding-bottom: 8px;
    border-bottom: 1px solid var(--glass-border);
}
.phone-flash-controls button {
    min-height: 36px;
    padding: 8px 10px;
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    background: var(--ui-button);
    color: var(--ui-text);
    font: inherit;
    cursor: pointer;
}
.phone-flash-toggles {
    display: flex;
    gap: 8px;
}
.phone-flash-toggles button {
    flex: 1;
    min-width: 0;
}
.phone-flash-controls button[aria-pressed="true"] {
    background: var(--ui-button-hover);
}
.phone-flash-controls-heading button {
    width: 30px;
    min-height: 30px;
    padding: 0;
    font-size: 20px;
    line-height: 1;
}
.phone-flash-option {
    display: grid;
    gap: 7px;
}
.phone-flash-option output {
    color: var(--ui-muted);
    font-size: 11px;
}
.phone-flash-option input[type="range"] {
    width: 100%;
    margin: 0;
    accent-color: #2d6df6;
}
.phone-flash-color {
    grid-template-columns: 1fr auto;
    align-items: center;
}
.phone-flash-color.has-remove {
    grid-template-columns: 1fr auto auto;
}
.phone-flash-color input {
    width: 36px;
    height: 30px;
    padding: 2px;
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    background: var(--glass-bg-strong);
    cursor: pointer;
}
.phone-flash-colors {
    display: grid;
    gap: 8px;
}
.phone-flash-color-hint {
    margin: 0;
    color: var(--ui-muted);
    font-size: 10px;
}
.phone-flash-controls .phone-flash-color-remove {
    width: 20px;
    min-width: 20px;
    min-height: 20px;
    padding: 0;
    border-radius: 50%;
    font-size: 15px;
    font-weight: 400;
    line-height: 1;
}
.phone-flash-controls .phone-flash-color-remove:disabled {
    opacity: .35;
    cursor: default;
}
body.capture-mode .capture-frame .phone-bottom-frame {
    position: absolute;
    bottom: 0;
    left: 0;
    display: block;
    width: 100%;
    aspect-ratio: 2398 / 1024;
}
body.capture-mode .capture-frame .phone-bottom {
    inset: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    object-fit: fill;
}
.gif-recording-timer {
    position: absolute;
    z-index: 1;
    top: 20%;
    left: 50%;
    min-width: 72px;
    padding: 5px 12px;
    transform: translateX(-50%);
    border: 1px solid rgba(255, 255, 255, .7);
    border-radius: 999px;
    background: rgba(20, 24, 34, .72);
    color: #fff;
    font: 700 14px/1.2 Arial, sans-serif;
    text-align: center;
    font-variant-numeric: tabular-nums;
    pointer-events: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, .28);
}
.gif-recording-timer[hidden] {
    display: none;
}
body.capture-mode .phone-bottom-frame #phoneCaptureButton,
body.capture-mode .phone-bottom-frame #phoneInvertButton {
    position: absolute;
    display: block;
    padding: 0;
    border: 0;
    border-radius: 50%;
    background: transparent;
    pointer-events: auto;
    cursor: pointer;
}
body.capture-mode .phone-bottom-frame #phoneCaptureButton {
    left: 50%;
    top: 58.6%;
    width: 64px;
    height: 64px;
    transform: translate(-50%, -50%);
    touch-action: none;
}
body.capture-mode .phone-bottom-frame #phoneCaptureButton.is-recording {
    background: rgba(255, 55, 80, .42);
    box-shadow: 0 0 0 5px rgba(255, 55, 80, .8), 0 0 18px rgba(255, 55, 80, .8);
    animation: gif-recording-pulse 1s ease-in-out infinite alternate;
}
#takeCapture.is-recording {
    color: #fff;
    background: #d93650;
    animation: gif-recording-pulse 1s ease-in-out infinite alternate;
}
@keyframes gif-recording-pulse {
    to {
        opacity: .65;
    }
}
body.capture-mode .phone-bottom-frame #phoneInvertButton {
    left: 71.5%;
    top: 44.3%;
    width: 11.6%;
    height: 27.3%;
    touch-action: manipulation;
}
body.capture-mode #phoneCaptureButton:focus-visible {
    outline: 2px solid #4b8cff;
    outline-offset: 2px;
}
body.capture-mode #phoneInvertButton:focus-visible {
    outline: 2px solid #4b8cff;
    outline-offset: 2px;
}
@media (orientation: portrait) {
    body.capture-mode .capture-frame .desktop-overlay {
        display: none;
    }
    body.capture-mode.frame-off .capture-frame .desktop-overlay {
        display: none;
    }
}
@media (orientation: landscape) {
    body.capture-mode .capture-frame .phone-frame,
    body.capture-mode .capture-frame .phone-top-frame,
    body.capture-mode .capture-frame .phone-bottom-frame,
    body.capture-mode .phone-flash-trigger,
    body.capture-mode .phone-flash-controls {
        display: none;
    }
}
.ui {
    position: fixed;
    left: 18px;
    bottom: 18px;
    z-index: 5;
    padding: 12px 14px;
    border-radius: 14px;
    background: rgba(255,255,255,.72);
    backdrop-filter: blur(12px);
    box-shadow: 0 10px 30px rgba(30,45,70,.12);
    color: #263244;
    font-size: 13px;
    line-height: 1.55;
    user-select: none;
}
.ui b { font-size: 14px; }
.ui button {
    margin-top: 8px;
    padding: 7px 11px;
    border: 0;
    border-radius: 999px;
    background: #222836;
    color: white;
    cursor: pointer;
    font-weight: 700;
}
.ui button + button {
    margin-left: 5px;
}
.light-color-control {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin: 8px 0 0 6px;
    vertical-align: middle;
    font-size: 12px;
    font-weight: 700;
}
.light-color-control input {
    width: 34px;
    height: 30px;
    padding: 2px;
    border: 1px solid rgba(38, 50, 68, .2);
    border-radius: 6px;
    background: transparent;
    cursor: pointer;
}
.view-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-top: 3px;
}
.view-controls button {
    margin: 0;
    padding: 6px 9px;
    font-size: 11px;
}
.view-controls button + button {
    margin-left: 0;
}
.camera-decor-option {
    display: grid;
    grid-template-columns: 1fr 32px;
    align-items: center;
    gap: 8px;
    min-height: 34px;
    padding: 4px 8px;
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    background: var(--glass-bg-strong);
    font-size: 11px;
    font-weight: 600;
}
.camera-decor-option > input[type="checkbox"] {
    margin: 0;
    accent-color: #e34f9d;
}
.camera-decor-option.has-toggle {
    grid-template-columns: 16px 1fr 32px;
}
.camera-decor-option > input[type="color"] {
    width: 30px;
    height: 26px;
    padding: 2px;
    border: 1px solid var(--glass-border);
    border-radius: 7px;
    background: transparent;
    cursor: pointer;
}
.screen-image-controls {
    position: fixed;
    z-index: 15;
    display: flex;
    flex-wrap: nowrap;
    gap: 3px;
    width: max-content;
    max-width: calc(100vw - 16px);
    box-sizing: border-box;
    padding: 7px;
    border: 1px solid rgba(45, 55, 72, .18);
    border-radius: 8px;
    background: rgba(255, 255, 255, .92);
    box-shadow: 0 6px 20px rgba(30, 45, 70, .2);
    backdrop-filter: blur(12px);
}
.screen-image-controls[hidden] {
    display: none;
}
.screen-image-controls.locked {
    width: max-content;
    padding: 0;
    border: 0;
    border-radius: 8px;
    background: transparent;
    box-shadow: none;
    backdrop-filter: none;
}
.screen-image-controls button {
    min-width: 26px;
    height: 32px;
    box-sizing: border-box;
    margin: 0;
    padding: 0 4px;
    border: 0;
    border-radius: 6px;
    background: #222836;
    color: white;
    cursor: pointer;
    font-size: 12px;
}
.screen-image-controls #screenImageLayerToggle {
    flex: 0 1 auto;
    min-width: 0;
    padding: 0 4px;
    white-space: nowrap;
    font-size: 10px;
}
.screen-image-controls #screenImageShadowToggle {
    flex: 0 1 auto;
    min-width: 0;
    padding: 0 4px;
    white-space: nowrap;
    font-size: 10px;
}
.screen-image-controls.locked #screenImageLockToggle {
    width: auto;
    min-width: 54px;
    height: 32px;
    padding: 0 8px;
    border: 1px solid rgba(45, 55, 72, .18);
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 6px 18px rgba(30, 45, 70, .2);
    color: #222836;
    font-weight: 400;
    font-size: 10px;
}
body.dark-mode .screen-image-controls {
    border-color: rgba(220, 230, 250, .18);
    background: rgba(22, 27, 38, .94);
    color: #e6eaf2;
}
body.dark-mode .screen-image-controls button {
    background: #e6eaf2;
    color: #222836;
}
body.dark-mode .screen-image-controls.locked #screenImageLockToggle {
    background: #fff;
    color: #222836;
}
body.capture-mode .screen-image-controls {
    display: none;
}
.camera-height-controls {
    position: fixed;
    top: 50%;
    left: 14px;
    z-index: 8;
    display: grid;
    grid-template-columns: repeat(3, 44px);
    grid-template-rows: repeat(3, 44px);
    gap: 4px;
    transform: translateY(-50%);
}
.camera-height-controls button {
    display: grid;
    width: 44px;
    aspect-ratio: 1;
    place-items: center;
    padding: 0;
    border: 1px solid rgba(45, 55, 72, .22);
    border-radius: 50%;
    background: rgba(255, 255, 255, .84);
    box-shadow: 0 4px 12px rgba(30, 45, 70, .16);
    color: #263244;
    cursor: pointer;
    font-size: 20px;
    line-height: 1;
    touch-action: manipulation;
}
.camera-height-controls [data-axis="y"][data-direction="1"] {
    grid-column: 2;
    grid-row: 1;
}
.camera-height-controls [data-axis="x"][data-direction="-1"] {
    grid-column: 1;
    grid-row: 2;
}
.camera-height-controls [data-axis="x"][data-direction="1"] {
    grid-column: 3;
    grid-row: 2;
}
.camera-height-controls [data-axis="y"][data-direction="-1"] {
    grid-column: 2;
    grid-row: 3;
}
.camera-height-controls button:hover {
    background: #fff;
}
body.dark-mode .camera-height-controls button {
    border-color: rgba(220, 230, 250, .24);
    background: rgba(22, 27, 38, .88);
    color: #e6eaf2;
}
body.capture-mode .camera-height-controls {
    display: none;
}
#captureControls {
    position: fixed;
    top: 16px;
    left: 50%;
    z-index: 30;
    display: flex;
    gap: 8px;
    transform: translateX(-50%);
}
#captureControls[hidden] {
    display: none;
}
#captureControls button {
    padding: 8px 12px;
    border: 0;
    border-radius: 999px;
    background: #222836;
    color: white;
    cursor: pointer;
    font: inherit;
    font-size: 12px;
    font-weight: 700;
    white-space: nowrap;
}
#captureControls button[aria-pressed="false"] {
    opacity: .72;
}
body.dark-mode #captureControls button {
    background: #e6eaf2;
    color: #222836;
}
.event-control {
    display: flex;
    align-items: center;
    gap: 7px;
    margin: 0 0 10px;
    font-weight: 700;
    cursor: pointer;
}
.part-options-row {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 10px;
}
.part-options-row .spindle-control,
.part-options-row .event-control {
    margin: 0;
}
.event-control input {
    margin: 0;
}
.event-control[hidden] {
    display: none;
}
body.dark-mode .ui {
    background: rgba(22,27,38,.82);
    color: #e6eaf2;
    box-shadow: 0 10px 30px rgba(0,0,0,.3);
}
body.dark-mode .ui button {
    background: #e6eaf2;
    color: #222836;
}
body.dark-mode .light-color-control input {
    border-color: rgba(230, 234, 242, .36);
}
body.dark-mode .view-controls button[aria-pressed="true"] {
    background: #8b72f0;
    color: white;
}

.part-panel {
    position: fixed;
    top: 18px;
    right: 18px;
    width: min(210px, calc(100vw - 36px));
    box-sizing: border-box;
    max-height: calc(100vh - 36px);
    overflow: auto;
    z-index: 10;
    padding: 12px;
    border-radius: 10px;
    background: rgba(255,255,255,.8);
    backdrop-filter: blur(12px);
    box-shadow: 0 12px 28px rgba(30,45,70,.12);
    color: #1f2736;
    font-size: 12px;
}
body.dark-mode .part-panel {
    background: rgba(24,29,40,.88);
    color: #e6eaf2;
    box-shadow: 0 12px 28px rgba(0,0,0,.35);
}
body.dark-mode .part-panel h3 {
    color: #f0f3fa;
}
body.dark-mode .part-panel-toggle {
    background: #e6eaf2;
    color: #222836;
}
body.dark-mode .part-slot {
    border-bottom-color: rgba(220,230,250,.16);
}
body.dark-mode .part-slot select {
    border-color: rgba(220,230,250,.22);
    background: #303747;
    color: #f0f3fa;
}
.part-panel.collapsed {
    width: auto;
}
.part-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}
.part-panel h3 {
    margin: 0;
    font-size: 13px;
    letter-spacing: .04em;
    text-transform: uppercase;
    color: #384159;
}
.part-panel-toggle {
    flex: none;
    padding: 5px 9px;
    border: 0;
    border-radius: 999px;
    background: #222836;
    color: white;
    cursor: pointer;
    font: inherit;
    font-weight: 700;
}
.part-panel-content {
    margin-top: 12px;
}
.spindle-control {
    display: flex;
    align-items: center;
    gap: 7px;
    margin-bottom: 10px;
    font-weight: 700;
    cursor: pointer;
}
.spindle-control input {
    margin: 0;
    accent-color: #2d6df6;
}
.part-slot {
    margin-bottom: 4px;
    padding: 4px 0;
    border-bottom: 1px solid rgba(40, 52, 70, 0.12);
}
.part-slot-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 6px;
    margin-bottom: 2px;
    font-weight: 700;
}
.part-control-label {
    display: flex;
    align-items: center;
    gap: 5px;
    margin-top: 0;
    font-size: 9px;
    opacity: .75;
}
.heart-color-control {
    display: flex;
    align-items: center;
    gap: 6px;
    margin: 2px 0;
    font-size: 9px;
}
.heart-color-control[hidden] {
    display: none;
}
.heart-color-control input {
    width: 25px;
    height: 19px;
    padding: 0;
    border: 1px solid rgba(30,45,70,.2);
    border-radius: 5px;
    background: transparent;
    cursor: pointer;
}
.part-slot select {
    flex: 1;
    width: 0;
    min-width: 0;
    margin: 0;
    padding: 7px 6px;
    border: 1px solid rgba(30,45,70,.14);
    border-radius: 6px;
    background: white;
    color: #1f2736;
    font-size: 11px;
}
.part-slot input[type="range"] {
    flex: 1;
    min-width: 0;
    display: block;
    height: 14px;
    margin: 0;
    padding: 0;
    appearance: none;
    -webkit-appearance: none;
    background: transparent;
    cursor: pointer;
}
.part-slot input[type="range"]::-webkit-slider-runnable-track {
    height: 4px;
    border-radius: 999px;
    background: linear-gradient(to right, #2d6df6 var(--position-progress), rgba(100, 116, 139, .28) var(--position-progress));
}
.part-slot input[type="range"]::-moz-range-track {
    height: 4px;
    border-radius: 999px;
    background: rgba(100, 116, 139, .28);
}
.part-slot input[type="range"]::-moz-range-progress {
    height: 4px;
    border-radius: 999px;
    background: #2d6df6;
}
.part-slot input[type="range"]::-webkit-slider-thumb {
    width: 12px;
    height: 12px;
    margin-top: -4px;
    border: 0;
    border-radius: 50%;
    appearance: none;
    -webkit-appearance: none;
    background: #2d6df6;
}
.part-slot input[type="range"]::-moz-range-thumb {
    width: 12px;
    height: 12px;
    border: 0;
    border-radius: 50%;
    background: #2d6df6;
}
@media (min-width: 601px) {
  .part-panel {
    width: min(clamp(260px, 24vw, 340px), calc(100vw - 40px));
    padding: clamp(16px, 1.5vw, 22px);
  }
  .part-panel-content { margin-top: clamp(14px, 1.2vh, 20px); }
  .part-slot { margin-bottom: clamp(8px, 1vh, 12px); padding: 8px 0; }
  .part-slot-header { margin-bottom: 6px; }
  .part-slot select { padding: 9px 8px; }
  .part-slot input[type="range"] { height: 18px; }
}
@media (max-width: 600px) {
    #captureControls {
    top: 10px;
    gap: 6px;
    width: calc(100% - 20px);
    justify-content: center;
    flex-wrap: wrap;
    }
    #takeCapture {
    display: none;
    }
    body.capture-mode.frame-off #takeCapture {
    display: inline-flex;
    }
    #captureControls button {
    padding: 7px 10px;
    font-size: 11px;
    }
    .view-controls button {
    padding: 5px 8px;
    font-size: 10px;
    }
    .camera-height-controls {
    display: none;
    }
    .part-panel {
    top: 10px;
    right: 10px;
    width: min(175px, calc(100vw - 20px));
    max-height: calc(100vh - 20px);
    padding: 9px;
    font-size: 11px;
    }
    .part-panel-header {
    gap: 8px;
    }
    .part-panel h3 {
    font-size: 12px;
    }
    .part-panel-toggle {
    padding: 4px 8px;
    }
    .part-panel-content {
    margin-top: 8px;
    }
    .spindle-control, .event-control {
    margin-bottom: 7px;
    }
    .part-slot {
    margin-bottom: 4px;
    padding: 4px 0;
    }
    .part-slot select {
    padding: 7px 5px;
    font-size: 10px;
    }
    .part-control-label {
    gap: 4px;
    font-size: 8px;
    }
    .heart-color-control {
    gap: 5px;
    font-size: 8px;
    }
    .heart-color-control input {
    width: 22px;
    height: 17px;
    }
}

/* ===== Neutral glass UI refresh ===== */
:root {
  color-scheme: light;
  --glass-bg: rgba(255,255,255,.76);
  --glass-bg-strong: rgba(255,255,255,.9);
  --glass-border: rgba(20,20,20,.10);
  --ui-text: #171717;
  --ui-muted: #737373;
  --ui-button: rgba(255,255,255,.58);
  --ui-button-hover: rgba(0,0,0,.055);
  --ui-shadow: 0 14px 44px rgba(0,0,0,.10), inset 0 1px 0 rgba(255,255,255,.72);
}
html, body { background: #f4f4f2; color: var(--ui-text); font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
body { background: radial-gradient(circle at 50% 38%, #fff 0%, #f5f5f3 52%, #e9e9e6 100%); user-select:none; -webkit-user-select:none; }
input, textarea, select { user-select:auto; -webkit-user-select:auto; }
body.dark-mode { color-scheme: dark; --glass-bg: rgba(18,18,18,.78); --glass-bg-strong: rgba(25,25,25,.94); --glass-border: rgba(255,255,255,.13); --ui-text: #f5f5f5; --ui-muted: #a3a3a3; --ui-button: rgba(255,255,255,.07); --ui-button-hover: rgba(255,255,255,.13); --ui-shadow: 0 16px 48px rgba(0,0,0,.32), inset 0 1px 0 rgba(255,255,255,.05); background: radial-gradient(circle at 50% 38%, #202020 0%, #111 54%, #050505 100%); }
button, input, select { font: inherit; }
button { transition: background .18s ease, border-color .18s ease, transform .18s ease, opacity .18s ease; }
button:focus-visible { outline: 2px solid currentColor; outline-offset: 3px; }
.menu-toggle { position: fixed; top: 20px; left: 20px; z-index: 40; width: 48px; height: 48px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 5px; padding: 0; border: 1px solid var(--glass-border); border-radius: 16px; background: var(--glass-bg); color: var(--ui-text); box-shadow: var(--ui-shadow); backdrop-filter: blur(24px) saturate(130%); -webkit-backdrop-filter: blur(24px) saturate(130%); cursor: pointer; }
.menu-toggle span { width: 17px; height: 1.5px; background: currentColor; border-radius: 2px; }
.capture-menu-toggle { display:none; }
.capture-menu-toggle span { width:17px; height:1.5px; border-radius:2px; background:currentColor; }
.capture-customizer { display:none; }
.capture-customizer[hidden] { display:none !important; }
body.capture-mode .capture-customizer:not([hidden]) { display:block; }
.capture-customizer.is-open { opacity:1; transform:translateY(0) scale(1); }
.capture-customizer .menu-heading { padding-bottom:12px; }
.capture-customizer .control-section { margin-top:12px; }
.capture-customizer .camera-decor-option { box-sizing:border-box; margin:0; }
.capture-customizer button { width:100%; min-height:38px; padding:8px 11px; border:1px solid var(--glass-border); border-radius:11px; background:var(--ui-button); color:var(--ui-text); font-size:11px; font-weight:600; cursor:pointer; }
.capture-customizer button:hover { background:var(--ui-button-hover); }
.menu-toggle:hover { background: var(--glass-bg-strong); transform: translateY(-1px); }
.ui { position: fixed; top: 78px; bottom: auto; left: 20px; z-index: 39; width: min(310px, calc(100vw - 40px)); max-height: calc(100vh - 98px); box-sizing: border-box; overflow-y: auto; padding: 18px; border: 1px solid var(--glass-border); border-radius: 22px; background: var(--glass-bg); color: var(--ui-text); box-shadow: var(--ui-shadow); backdrop-filter: blur(28px) saturate(135%); -webkit-backdrop-filter: blur(28px) saturate(135%); font-size: 12px; line-height: 1.5; }
.ui[hidden] { display: none !important; }
.ui { opacity: 0; transform: translateY(-8px) scale(.985); transform-origin: top left; transition: opacity .2s ease, transform .22s cubic-bezier(.2,.75,.25,1); }
.ui.is-open { opacity: 1; transform: translateY(0) scale(1); }
.capture-customizer { position:fixed; top:78px; right:20px; z-index:50; width:min(300px, calc(100vw - 40px)); max-height:calc(100vh - 98px); box-sizing:border-box; overflow-y:auto; padding:18px; border:1px solid var(--glass-border); border-radius:22px; background:var(--glass-bg); color:var(--ui-text); box-shadow:var(--ui-shadow); backdrop-filter:blur(28px) saturate(135%); -webkit-backdrop-filter:blur(28px) saturate(135%); font-size:12px; line-height:1.5; opacity:0; transform:translateY(-8px) scale(.985); transform-origin:top right; transition:opacity .2s ease, transform .22s cubic-bezier(.2,.75,.25,1); }
.menu-toggle span { transition: transform .22s ease, opacity .18s ease; }
.menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(6.5px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-6.5px) rotate(-45deg); }
.menu-heading { display:flex; align-items:center; justify-content:space-between; gap:12px; padding-bottom:14px; border-bottom:1px solid var(--glass-border); }
.menu-heading > div { display:flex; flex-direction:column; gap:3px; }
.menu-heading strong { font-size:16px; letter-spacing:-.03em; }
.eyebrow, .section-label { color:var(--ui-muted); font-size:9px; font-weight:700; letter-spacing:.14em; }
.ui #openCustomizer { width:100%; margin-top:12px; }
.ui #openCustomizer[hidden] { display:none; }
.view-hint { margin:12px 0 14px; color:var(--ui-muted); font-size:11px; }
.control-section { display:flex; flex-direction:column; align-items:stretch; gap:8px; margin-top:14px; }
.section-label { margin-bottom:2px; }
.ui button, #captureControls button { min-height:35px; margin:0; padding:8px 11px; border:1px solid var(--glass-border); border-radius:11px; background:var(--ui-button); color:var(--ui-text); box-shadow:none; font-size:11px; font-weight:600; cursor:pointer; }
.ui button:hover, #captureControls button:hover { background:var(--ui-button-hover); }
.ui button[aria-pressed="true"] { background:rgba(0,0,0,.10); border-color:rgba(0,0,0,.2); color:var(--ui-text); }
body.dark-mode .ui button[aria-pressed="true"] { background:rgba(255,255,255,.16); border-color:rgba(255,255,255,.25); color:var(--ui-text); }
.light-color-control { display:flex; justify-content:space-between; align-items:center; gap:8px; min-height:35px; margin:0; padding:8px 11px; border:1px solid var(--glass-border); border-radius:11px; background:var(--ui-button); color:var(--ui-text); font-size:11px; font-weight:600; transition:background .18s ease, border-color .18s ease; }
.light-color-control:hover { background:var(--ui-button-hover); }
.lighting-controls { display:grid; grid-template-columns:1fr 1fr; align-items:stretch; gap:7px; }
.lighting-controls > button, .lighting-controls > .light-color-control { min-width:0; box-sizing:border-box; }
.lighting-controls > button { margin:0; }
.lighting-controls .light-color-control { padding:8px 10px; font-size:10px; }
.light-color-control input { flex:none; width:28px; height:24px; margin:0; padding:3px; border:1px solid var(--glass-border); border-radius:8px; background:var(--glass-bg-strong); cursor:pointer; }
.light-color-control input::-webkit-color-swatch-wrapper { padding:0; }
.light-color-control input::-webkit-color-swatch { border:0; border-radius:4px; }
.light-color-control input::-moz-color-swatch { border:0; border-radius:4px; }
.view-controls { display:grid; grid-template-columns:1fr 1fr; gap:7px; margin:0; }
.view-controls button { min-width:0; margin:0 !important; padding:8px; font-size:10px; }
body.dark-mode .ui { background:var(--glass-bg); color:var(--ui-text); box-shadow:var(--ui-shadow); }
body.dark-mode .ui button, body.dark-mode #captureControls button { background:var(--ui-button); color:var(--ui-text); }
body.dark-mode .ui button:hover, body.dark-mode #captureControls button:hover { background:var(--ui-button-hover); }
body.capture-mode .capture-menu-toggle { position:fixed; top:5px; right:4.5%; z-index:41; width:9%; height:48px; display:flex; flex-direction:column; align-items:center; justify-content:center; gap:5px; padding:0; border:0; background:transparent; color:transparent; pointer-events:auto; cursor:pointer; }
body.capture-mode .capture-menu-toggle span { background:transparent; }
body.dark-mode .camera-decor-option { background:var(--glass-bg-strong); color:var(--ui-text); }
body.dark-mode .capture-customizer { background:var(--glass-bg); color:var(--ui-text); }
@media (orientation: landscape) {
  body.capture-mode .capture-menu-toggle { top:16px; right:16px; width:48px; height:48px; border:1px solid var(--glass-border); border-radius:16px; background:var(--glass-bg); color:var(--ui-text); box-shadow:var(--ui-shadow); backdrop-filter:blur(24px) saturate(130%); -webkit-backdrop-filter:blur(24px) saturate(130%); }
  body.capture-mode .capture-menu-toggle span { background:currentColor; }
}
.part-panel { top:20px; right:20px; width:min(clamp(280px, 25vw, 360px), calc(100vw - 40px)); padding:16px; border:1px solid var(--glass-border); border-radius:22px; background:var(--glass-bg); color:var(--ui-text); box-shadow:var(--ui-shadow); backdrop-filter:blur(28px) saturate(135%); -webkit-backdrop-filter:blur(28px) saturate(135%); }
.part-panel h3 { color:var(--ui-text); font-size:12px; letter-spacing:.02em; }
.part-panel-actions { display:flex; align-items:center; gap:6px; }
.part-panel-header { cursor:grab; touch-action:none; user-select:none; }
.part-panel-header:active { cursor:grabbing; }
.part-panel-header button { cursor:pointer; }
.part-panel-toggle { width:30px; height:30px; display:grid; place-items:center; padding:0; border:1px solid var(--glass-border); border-radius:9px; background:var(--ui-button); color:var(--ui-text); font-size:19px; line-height:1; font-weight:400; }
.part-panel-close { width:30px; height:30px; display:grid; place-items:center; padding:0; border:1px solid var(--glass-border); border-radius:9px; background:var(--ui-button); color:var(--ui-text); font-size:19px; line-height:1; cursor:pointer; }
.part-panel-content { overflow:hidden; max-height:70vh; opacity:1; transform:translateY(0); transition:max-height .28s ease, opacity .2s ease, transform .25s ease, margin .25s ease; }
.part-panel.collapsed .part-panel-content { max-height:0; opacity:0; transform:translateY(-5px); margin-top:0; pointer-events:none; }
.part-panel, .menu-toggle { transition:background .2s ease, border-color .2s ease, box-shadow .2s ease, transform .2s ease; }
body.dark-mode .part-panel, body.dark-mode .part-panel h3 { background:var(--glass-bg); color:var(--ui-text); }
body.dark-mode .part-panel-toggle { background:var(--ui-button); color:var(--ui-text); }
.part-slot select { border-color:var(--glass-border); border-radius:9px; background:var(--ui-button); color:var(--ui-text); }
.part-slot input[type="range"], .spindle-control input, .event-control input { accent-color:currentColor; }
body.dark-mode .part-slot select { border-color:var(--glass-border); background:rgba(255,255,255,.07); color:var(--ui-text); }
body.dark-mode .part-slot, .part-slot { border-bottom-color:var(--glass-border); }
.screen-image.selected { outline:1px solid rgba(0,0,0,.72); outline-offset:3px; }
body.dark-mode .screen-image.selected { outline-color:rgba(255,255,255,.9); }
.screen-image-controls { border-color:var(--glass-border); border-radius:14px; background:var(--glass-bg-strong); color:var(--ui-text); box-shadow:var(--ui-shadow); }
.screen-image-controls button, body.dark-mode .screen-image-controls button { border:1px solid var(--glass-border); border-radius:9px; background:var(--ui-button); color:var(--ui-text); }
.screen-image-controls.locked #screenImageLockToggle, body.dark-mode .screen-image-controls.locked #screenImageLockToggle { border-color:var(--glass-border); background:var(--glass-bg-strong); color:var(--ui-text); box-shadow:var(--ui-shadow); }
.camera-height-controls button { border-color:var(--glass-border); background:var(--glass-bg); color:var(--ui-text); box-shadow:var(--ui-shadow); backdrop-filter:blur(16px); }
body.dark-mode .camera-height-controls button { border-color:var(--glass-border); background:var(--glass-bg); color:var(--ui-text); }
.camera-height-controls button:hover { background:var(--glass-bg-strong); }
#captureControls button { background:var(--glass-bg); color:var(--ui-text); backdrop-filter:blur(20px); }
body.capture-mode .menu-toggle { display:none; }
@media (min-width:601px) {
  .part-panel-content { width:calc(100% - 8px); margin-right:auto; margin-left:auto; box-sizing:border-box; }
}
@media (max-width:600px) {
  .view-hint { display:none; }
  .menu-toggle { top:10px; left:10px; width:40px; height:40px; gap:4px; border-radius:13px; }
  .menu-toggle span { width:15px; }
  .ui { top:58px; left:10px; width:min(250px, calc(100vw - 20px)); max-height:calc(100vh - 68px); padding:12px; border-radius:17px; font-size:10px; line-height:1.4; }
  .menu-heading { gap:8px; padding-bottom:10px; }
  .menu-heading strong { font-size:14px; }
  .control-section { gap:6px; margin-top:10px; }
  .ui button { min-height:31px; padding:6px 8px; border-radius:9px; font-size:10px; }
  .light-color-control { gap:6px; min-height:31px; padding:6px 8px; font-size:10px; }
  .lighting-controls { gap:5px; }
  .lighting-controls .light-color-control { padding:6px 7px; font-size:9px; }
  .light-color-control input { width:24px; height:21px; }
  .view-controls { gap:5px; }
  .view-controls button { padding:6px 4px; font-size:9px; }
  .part-panel { top:12px; right:12px; width:min(215px, calc(100vw - 24px)); max-height:calc(100vh - 24px); padding:13px; border-radius:19px; }
  .capture-customizer { top:66px; right:12px; width:min(310px, calc(100vw - 24px)); max-height:calc(100vh - 78px); padding:15px; border-radius:19px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior:auto !important; animation-duration:.01ms !important; animation-iteration-count:1 !important; transition-duration:.01ms !important; }
}