:root {
    --bg-color: #f0f0f0;
    --text-color: #333;
    --panel-bg: #fff;
    --panel-border: #ccc;
    --input-bg: #fff;
    --input-border: #ccc;
    --button-bg: #e0e0e0;
    --button-hover-bg: #d0d0d0;
    --primary-color: #007bff;
    --label-color: #555;
    /* Added for glass effect */
    --glass-blur: 16px;
    --white: hsl(0, 0%, 100%);
    --white0: hsla(0, 0%, 100%, 0);
    --white50: hsla(0, 0%, 100%, 0.05);
    --white100: hsla(0, 0%, 100%, 0.1);
    --white200: hsla(0, 0%, 100%, 0.2);
    /* Blue accent colors for active radial button */
    --blue-dark: #023e8a;
    --blue-base: #0077b6;
    --blue-light: #0096c7;
    --blue-lighter: #48cae4;    
}

body.dark-mode {
    --bg-color: #000000;
    --text-color: #e0e0e0;
    /* --panel-bg is less relevant when using gradient for glass */
    --panel-border: rgba(85, 85, 85, 0.5);
    --input-bg: rgba(50, 50, 50, 0.7);
    --input-border: #5a5a5a;
    --button-bg: #4a4a4a;
    --button-hover-bg: #5a5a5a;
    --primary-color: #008cff;
    --label-color: #c0c0c0;
    --summary-bg: rgba(45, 45, 45, 0.8);
    --summary-hover-bg: rgba(55, 55, 55, 0.85);
    --control-content-bg: rgba(35, 35, 35, 0.7);
}

body {
    font-family: 'Segoe UI', 'Asap', sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    height: 100vh;
    overflow: hidden;
    transition: background-color 0.3s, color 0.3s;
}

#floatingControlsPanel {
    position: fixed;
    top: 20px;
    left: 20px;
    width: 380px;
    height: auto;
    max-height: 70vh;
    background-color: var(--panel-bg);
    border: 1px solid var(--panel-border);
    box-sizing: border-box;
    border-radius: 16px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.2);
    z-index: 1010;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

body.dark-mode #floatingControlsPanel {
    background-image: linear-gradient(145deg, hsla(0, 0%, 100%, 0.15), hsla(0, 0%, 100%, 0.05));
    background-color: transparent;
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid hsla(0, 0%, 100%, 0.25);
    color: var(--text-color);
}

.panel-header {
    padding: 8px 12px;
    background-color: transparent;
    border-bottom: 1px solid var(--white100);
    cursor: grab;
    display: flex;
    justify-content: space-between;
    align-items: center;
    user-select: none;
    -webkit-user-select: none;
}

body.dark-mode .panel-header {
    color: var(--white);
}

.panel-title {
    font-weight: 600;
    color: inherit;
}

.panel-buttons button.panel-control-button {
    background: none;
    border: none;
    color: inherit;
    font-size: 1.2em;
    padding: 2px 5px;
    cursor: pointer;
    border-radius: 4px;
}

.panel-buttons button.panel-control-button:hover {
    background-color: var(--white50);
}

.panel-content-scrollable {
    overflow-y: auto;
    overflow-x: hidden;
    padding: 15px 10px;
    flex-grow: 1;
}

canvas#starburstCanvas {
    display: block;
    width: 100%;
    height: 100%;
    background-color: #fff;
    cursor: default;
}
canvas#starburstCanvas.editing-polygon {
    cursor: crosshair;
}

body.dark-mode canvas#starburstCanvas {
    background-color: transparent;
}

.controls-group {
    margin: 0px 10px 20px 10px;
    border: 1px solid var(--white100);
    border-radius: 10px;
    background-color: var(--white50);
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    transition: box-shadow 0.2s ease-in-out;
}

.controls-group:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

body.dark-mode .controls-group {
    background-color: hsla(0, 0%, 100%, 0.06);
    border: 1px solid hsla(0, 0%, 100%, 0.12);
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

body.dark-mode .controls-group:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.controls-group summary {
    padding: 12px 15px;
    background-color: hsla(0, 0%, 0%, 0.03);
    font-weight: 700;
    font-size: 0.95em;
    color: var(--text-color);
    cursor: pointer;
    border-radius: 9px 9px 0 0;
    border-bottom: 1px solid var(--white100);
    letter-spacing: 0.5px;
    transition: background-color 0.2s ease-in-out;
}

body.dark-mode .controls-group summary {
    background-color: hsla(0, 0%, 100%, 0.1);
    color: var(--white);
    border-bottom: 1px solid hsla(0, 0%, 100%, 0.18);
}

.controls-group[open] summary {
    background-color: hsla(0, 0%, 0%, 0.05);
}

body.dark-mode .controls-group[open] summary {
    background-color: hsla(0, 0%, 100%, 0.15);
}

.controls-group summary:hover {
    background-color: hsla(0, 0%, 0%, 0.06);
}

body.dark-mode .controls-group summary:hover {
    background-color: hsla(0, 0%, 100%, 0.2);
}

.control { 
    margin-bottom: 18px; /* Increased space between full control blocks */
    display: flex; 
    flex-direction: column; 
}

/* Label specific to direct children of .control, for the new stacked layout */
.control > label {
    margin-bottom: 6px;
    font-size: 0.85em;
    color: var(--label-color);
    font-weight: 600; /* Bolder labels */
    display: block; /* Ensure label takes its own line */
    padding-left: 2px; /* Slight indent for label */
}
body.dark-mode .control > label {
    color: var(--white);
}

/* This is the old .control label style - keep it for non-stacked cases or specific overrides if any */
.control label:not(:first-child) { /* If a label is not the first child, it might be an inline one */
    margin-bottom: 6px;
    font-size: 0.85em;
    color: var(--label-color);
    font-weight: 500;
}

.control div[class*="value-display"], .control span[class*="value-display"] {
    font-size: 0.8em;
    color: var(--text-color);
    margin-left: 10px;
    background-color: rgba(0,0,0,0.2);
    padding: 2px 5px;
    border-radius: 3px;
}
body.dark-mode .control div[class*="value-display"], 
body.dark-mode .control span[class*="value-display"] {
    background-color: var(--white100);
    color: var(--white);
}

/* New class for the row containing input, value, and anim toggle */
.control-input-row {
    display: flex;
    align-items: center;
    width: 100%;
}

/* Styles for elements within .control-input-row */
.control-input-row input[type="range"] {
    flex-grow: 1;
    margin-right: 10px;
    /* Slider track/thumb styles are already defined globally */
}

.control-input-row .value-display {
    min-width: 35px;
    text-align: right;
    font-size: 0.8em;
    color: var(--text-color);
    background-color: rgba(0,0,0,0.05);
    padding: 4px 7px;
    border-radius: 4px;
    margin-right: 8px; /* Space before animation toggle button */
}

body.dark-mode .control-input-row .value-display {
    background-color: var(--white100);
    color: var(--white);
}

/* Remove old .control-row styling as it's replaced by .control > label and .control-input-row for sliders */
/*
.control-row { 
    display: flex; 
    align-items: center; 
    margin-bottom: 12px; 
}

.control-row > label {
    flex: 0 0 140px; 
    margin-right: 12px; 
    margin-bottom: 0;
    font-size: 0.85em;
    white-space: nowrap;
    color: var(--label-color); 
}

body.dark-mode .control-row > label {
    color: var(--white);
}

.control-row input[type="range"] { 
    flex-grow: 1; 
    margin-right: 10px;
}

.control-row .value-display {
    min-width: 35px; 
    text-align: right;
    font-size: 0.8em;
    color: var(--text-color);
    background-color: rgba(0,0,0,0.05); 
    padding: 4px 7px; 
    border-radius: 4px;
    margin-left: 0; 
    margin-right: 8px; 
}

body.dark-mode .control-row .value-display {
    background-color: var(--white100); 
    color: var(--white);
}
*/

/* Keep .control-row for non-slider elements that still use it, like color pickers if they are structured that way */
/* Or if other elements like selects are in a .control-row that is NOT inside a .control with a stacked label */
.control-row {
    display: flex;
    align-items: center;
    margin-bottom: 10px; /* Default spacing for generic control rows */
}
.control-row > label {
    /* Styles for labels within a generic control-row if still used */
    flex: 0 0 140px; 
    margin-right: 10px;
    font-size: 0.85em;
    color: var(--label-color);
}
body.dark-mode .control-row > label {
    color: var(--white);
}

/* Styling for the Pattern Type radio buttons */
.control-row > label:first-child + .pattern-button-group {
    flex-grow: 1;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

/* Remove old radio group styling if no longer needed or adjust */
/* .radio-group input[type=\"radio\"] { ... } */
/* .radio-group label.radio-label { ... } */

.pattern-type-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 8px;
    min-width: 75px;
    min-height: 65px;
    background-color: var(--button-bg);
    color: var(--text-color);
    border: 1px solid var(--input-border);
    border-radius: 8px; 
    cursor: pointer;
    font-weight: 500;
    text-align: center;
    transition: background-color 0.2s ease-in-out, border-color 0.2s ease-in-out, color 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
}

.pattern-type-btn i {
    font-size: 1.4em;
    margin-bottom: 5px;
}

.pattern-type-btn .pattern-btn-label {
    font-size: 0.75em;
    display: block;
}

/* Dark Mode Styles for Pattern Buttons */
body.dark-mode .pattern-type-btn {
    background-color: hsla(0, 0%, 100%, 0.1);
    color: var(--white);
    border: 1px solid hsla(0, 0%, 100%, 0.25);
}

.pattern-type-btn:hover {
    background-color: var(--button-hover-bg);
    border-color: #bbb; 
    box-shadow: 0 2px 5px rgba(0,0,0,0.15);
}

body.dark-mode .pattern-type-btn:hover {
    background-color: hsla(0, 0%, 100%, 0.18);
    border-color: hsla(0, 0%, 100%, 0.4);
}

.pattern-type-btn.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    box-shadow: 0 0 8px hsla(var(--hue-primary, 210), 100%, 50%, 0.5);
}

body.dark-mode .pattern-type-btn.active {
    background-color: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

body.dark-mode .pattern-type-btn.active i,
body.dark-mode .pattern-type-btn.active .pattern-btn-label {
    color: var(--white);
}

.pattern-type-btn:not(.active) i,
.pattern-type-btn:not(.active) .pattern-btn-label {
    color: inherit;
}

/* Ensure active button icon/label color is also white in light mode if primary color is dark */
.pattern-type-btn.active i,
.pattern-type-btn.active .pattern-btn-label {
    color: white; 
}

/* Custom Checkbox Styles (assuming standard input type checkbox) */
input[type="checkbox"] {
    -webkit-appearance: none;
    appearance: none;
    background-color: transparent;
    margin: 0 8px 0 0;
    font: inherit;
    color: var(--input-border);
    width: 1.15em;
    height: 1.15em;
    border: 0.1em solid currentColor;
    border-radius: 0.25em;
    transform: translateY(-0.075em);
    display: inline-grid;
    place-content: center;
    cursor: pointer;
    transition: background-color 0.1s ease-in-out, border-color 0.1s ease-in-out;
}

input[type="checkbox"]::before {
    content: "";
    width: 0.65em;
    height: 0.65em;
    transform: scale(0);
    transition: 120ms transform ease-in-out;
    box-shadow: inset 1em 1em var(--primary-color);
    transform-origin: bottom left;
    clip-path: polygon(14% 44%, 0 65%, 50% 100%, 100% 16%, 80% 0%, 43% 62%);
}

input[type="checkbox"]:checked::before {
    transform: scale(1);
}

input[type="checkbox"]:focus {
    outline: max(2px, 0.15em) solid var(--primary-color);
    outline-offset: max(2px, 0.1em);
}

input[type="checkbox"]:disabled {
    color: var(--input-border);
    cursor: not-allowed;
    opacity: 0.7;
}

body.dark-mode input[type="checkbox"] {
    color: var(--white200);
}

body.dark-mode input[type="checkbox"]:checked::before {
    box-shadow: inset 1em 1em var(--primary-color);
}

/* If those squares are not standard checkboxes, we will need different selectors */

input[type="number"],
input[type="text"],
select {
    width: 100%;
    padding: 10px 12px;
    box-sizing: border-box;
    background-color: var(--input-bg);
    color: var(--text-color);
    border: 1px solid var(--input-border);
    border-radius: 8px;
    box-shadow: inset 0 1px 2px rgba(0,0,0,0.1);
    transition: border-color 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
}
body.dark-mode input[type="number"],
body.dark-mode input[type="text"],
body.dark-mode select {
    background-color: hsla(0, 0%, 100%, 0.08);
    color: var(--white);
    border: 1px solid hsla(0, 0%, 100%, 0.2);
}

input[type="number"]:focus,
input[type="text"]:focus,
select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px hsla(var(--hue-primary, 210), 100%, 50%, 0.3), inset 0 1px 2px rgba(0,0,0,0.1);
    outline: none;
}
body.dark-mode input[type="number"]:focus,
body.dark-mode input[type="text"]:focus,
body.dark-mode select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px hsla(var(--hue-primary, 210), 100%, 70%, 0.4);
}

input[type="color"] {
    width: 100%;
    height: 40px;
    padding: 0;
    border: 1px solid var(--input-border);
    border-radius: 8px;
    cursor: pointer;
    background-color: var(--input-bg);
}
body.dark-mode input[type="color"] {
    border: 1px solid hsla(0, 0%, 100%, 0.2);
}
input[type="color"]::-webkit-color-swatch-wrapper { padding: 0; }
input[type="color"]::-webkit-color-swatch { border: none; border-radius: 4px; }

button {
    padding: 10px 18px;
    background-color: var(--button-bg);
    color: var(--text-color);
    border: 1px solid var(--input-border);
    border-radius: 8px;
    cursor: pointer;
    margin-right: 5px;
    font-weight: 500;
    transition: background-color 0.2s ease-in-out, border-color 0.2s ease-in-out, transform 0.1s ease;
}
body.dark-mode button {
    background-color: hsla(0, 0%, 100%, 0.1);
    color: var(--white);
    border: 1px solid hsla(0, 0%, 100%, 0.25);
}

button:hover {
    background-color: var(--button-hover-bg);
    border-color: #bbb;
    box-shadow: 0 1px 4px rgba(0,0,0,0.2);
}
body.dark-mode button:hover {
    background-color: hsla(0, 0%, 100%, 0.18);
    border-color: hsla(0, 0%, 100%, 0.4);
}

button:active {
    transform: translateY(1px);
    box-shadow: inset 0 1px 3px rgba(0,0,0,0.2);
}

button.primary {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}
body.dark-mode button.primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--white);
}
button.primary:hover {
    opacity: 0.85;
    background-color: var(--primary-color);
}

.top-controls { position: absolute; top: 10px; right: 10px; z-index: 1015; }
#canvas-size-controls { display: none; }
h2 { margin-top: 0; }

#activeShapesList label { display: block; margin-bottom: 3px; }
#activeShapesList input[type="checkbox"] { margin-right: 5px; vertical-align: middle;}

body.dark-mode #activeShapesList label {
    color: var(--white);
}

.top-radial-bars-container {
    position: fixed;
    top: 15px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1005;
    display: flex;
    gap: 15px;
    padding: 8px;
    border-radius: 30px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
    box-sizing: border-box;
}

body.dark-mode .top-radial-bars-container {
    background-image: linear-gradient(90deg, var(--white100), var(--white50));
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--white200);
}

.main-content {
    flex-grow: 1;
    display: flex;
    position: relative;
    overflow: hidden;
    background-color: var(--bg-color);
}

.top-radial-bars-container > .radial-circle-bar {
    position: relative !important;
    left: auto !important;
    top: auto !important;
    transform: none !important;
}

#floatingControlsPanel.panel-minimized .panel-content-scrollable {
    display: none;
}

#floatingControlsPanel.panel-minimized {
    height: auto !important;
    min-height: 0 !important;
}

body.dark-mode #floatingControlsPanel .panel-content-scrollable {
    color: var(--white);
}

.rgc-action-item.primed-for-action {
    box-shadow: 0 0 8px 2px var(--control-highlight-color, #00aaff), inset 0 0 5px var(--control-highlight-color, #00aaff);
    background-color: var(--control-highlight-color-bg, rgba(0, 120, 180, 0.5)) !important;
}

/* Styles for Slider Animation Controls */
.anim-panel-toggle-btn {
    background: none;
    border: 1px solid transparent; /* Transparent border to maintain layout on hover/active */
    color: var(--label-color); /* Use label color or text color */
    padding: 4px 6px;
    margin-left: 8px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.9em; /* Adjust as needed */
    transition: background-color 0.2s, color 0.2s, border-color 0.2s;
}

body.dark-mode .anim-panel-toggle-btn {
    color: var(--white200); /* Lighter color for dark mode */
}

.anim-panel-toggle-btn:hover {
    background-color: var(--button-hover-bg);
    color: var(--text-color);
    border-color: var(--input-border);
}

body.dark-mode .anim-panel-toggle-btn:hover {
    background-color: hsla(0, 0%, 100%, 0.15);
    color: var(--white);
    border-color: hsla(0, 0%, 100%, 0.3);
}

.anim-panel-toggle-btn.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

body.dark-mode .anim-panel-toggle-btn.active {
    background-color: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.animation-details-panel {
    background-color: hsl(0, 0%, 88%); /* A more distinct light gray: var(--button-bg) value */
    border: 1px solid hsl(0, 0%, 75%); /* Slightly darker border for this new BG */
    padding: 12px;
    border-radius: 6px;
    margin-top: 8px;
    box-shadow: inset 0 1px 2px rgba(0,0,0,0.06);
}

body.dark-mode .animation-details-panel {
    background-color: hsla(0, 0%, 15%, 0.75); /* Adjusted dark mode BG for consistency */
    border: 1px solid hsla(0, 0%, 100%, 0.25);
    color: var(--text-color);
}

.animation-details-panel label {
    font-size: 0.8em;
    color: var(--text-color); 
    margin-right: 5px;
    flex-shrink: 0; /* Prevent labels from shrinking */
}

body.dark-mode .animation-details-panel label {
    color: var(--text-color);
}

.animation-details-panel input[type="number"] {
    background-color: var(--input-bg);
    border: 1px solid var(--input-border);
    color: var(--text-color);
    padding: 6px 8px;
    font-size: 0.9em;
    border-radius: 4px; /* Added border-radius */
}

body.dark-mode .animation-details-panel input[type="number"] {
    background-color: hsla(0, 0%, 100%, 0.08);
    border: 1px solid hsla(0, 0%, 100%, 0.2);
    color: var(--white);
}

body.dark-mode .animation-details-panel input[type="checkbox"] {
    color: var(--input-border);
}

body.dark-mode .animation-details-panel input[type="checkbox"]:checked::before {
    box-shadow: inset 1em 1em var(--primary-color);
}

/* Layout for containers within animation-details-panel */
.animation-details-panel .slider-animation-enable-container,
.animation-details-panel .anim-duration-container,
.animation-details-panel .anim-minmax-container,
.animation-details-panel .anim-wiggle-specific-container {
    display: flex;
    align-items: center;
    margin-bottom: 10px; /* Consistent spacing */
}

.animation-details-panel .slider-animation-enable-container {
    justify-content: flex-start; /* Align checkboxes to the start */
    padding-bottom: 8px;
    border-bottom: 1px dashed var(--input-border); /* Kept from previous */
}
body.dark-mode .animation-details-panel .slider-animation-enable-container {
    border-bottom: 1px dashed hsla(0, 0%, 100%, 0.2);
}


.animation-details-panel .anim-duration-container label,
.animation-details-panel .anim-minmax-container label,
.animation-details-panel .anim-wiggle-specific-container label {
    min-width: 70px; /* Give labels some minimum width */
    text-align: right; /* Align text to the right for a neat column */
    margin-right: 8px;
}

/* Group input and its unit (e.g., duration input + "ms") */
.animation-details-panel .input-unit-group {
    display: flex;
    align-items: center;
}

.animation-details-panel .input-unit-group input[type="number"] {
    margin-right: 5px;
}

/* Specific adjustments for minmax if needed */
.animation-details-panel .anim-minmax-container {
    justify-content: flex-start; /* Allow min and max groups to sit side-by-side */
}

.animation-details-panel .anim-minmax-container > div { /* Each min/max group */
    display: flex;
    align-items: center;
    margin-right: 15px; /* Space between min and max groups */
}
.animation-details-panel .anim-minmax-container > div label {
    min-width: auto; /* Override the 70px if too much for "Min:" / "Max:" */
    margin-right: 5px;
}

/* Input Range Slider Styles */
input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 8px; /* Overall height of the slider area */
    background: transparent; /* Make default track transparent */
    cursor: pointer;
    padding: 0; /* Remove any default padding */
}

/* Track Styling */
input[type="range"]::-webkit-slider-runnable-track {
    width: 100%;
    height: 4px; /* Slimmer track */
    background: var(--input-border); /* Light mode track color */
    border-radius: 3px;
    transition: background-color 0.2s ease-in-out;
}

input[type="range"]::-moz-range-track {
    width: 100%;
    height: 4px;
    background: var(--input-border);
    border-radius: 3px;
    border: none; /* Ensure no default border */
    transition: background-color 0.2s ease-in-out;
}

body.dark-mode input[type="range"]::-webkit-slider-runnable-track {
    background: hsla(0, 0%, 100%, 0.25); /* Dark mode track color */
}

body.dark-mode input[type="range"]::-moz-range-track {
    background: hsla(0, 0%, 100%, 0.25);
}

/* Thumb Styling */
input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    margin-top: -6px; /* (Track height - Thumb height) / 2  -> (4 - 16) / 2 = -6 if thumb is 16px */
    height: 16px; /* Larger thumb */
    width: 16px;
    background: var(--primary-color);
    border-radius: 50%;
    border: 2px solid var(--panel-bg); /* Creates a "halo" effect */
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
    transition: background-color 0.2s ease-in-out, transform 0.1s ease-out;
}

input[type="range"]::-moz-range-thumb {
    height: 16px;
    width: 16px;
    background: var(--primary-color);
    border-radius: 50%;
    border: 2px solid var(--panel-bg);
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
    transition: background-color 0.2s ease-in-out, transform 0.1s ease-out;
}

body.dark-mode input[type="range"]::-webkit-slider-thumb {
    background: var(--primary-color);
    border: 2px solid var(--bg-color); /* Dark mode halo */
}

body.dark-mode input[type="range"]::-moz-range-thumb {
    background: var(--primary-color);
    border: 2px solid var(--bg-color);
}

/* Focus and Hover states for thumb */
input[type="range"]:focus::-webkit-slider-thumb,
input[type="range"]:hover::-webkit-slider-thumb {
    background: var(--blue-dark); /* Darken on hover/focus */
    transform: scale(1.1);
}

input[type="range"]:focus::-moz-range-thumb,
input[type="range"]:hover::-moz-range-thumb {
    background: var(--blue-dark);
    transform: scale(1.1);
}

input[type="range"]:active::-webkit-slider-thumb {
    transform: scale(0.95);
}
input[type="range"]:active::-moz-range-thumb {
    transform: scale(0.95);
}