:root {
    --primary-color: #2471a3;
    --secondary-color: #1a5276;
    --accent-color: #e67e22;
    --light-bg: #f8f9fa;
    --dark-bg: #343a40;
    --text-color: #333;
    --light-text: #f8f9fa;
    --border-radius: 8px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition-speed: 0.3s;
}

.accordion-header {
    background-color: var(--light-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: background-color var(--transition-speed) ease;
}

.accordion-header.active {
    background-color: var(--primary-color);
    color: var(--light-text);
}

.accordion-header .accordion-arrow {
    transition: transform var(--transition-speed) cubic-bezier(0.68, -0.55, 0.27, 1.55);
}

.accordion-header.active .accordion-arrow {
    transform: rotate(180deg);
}

.accordion-closed {
    display: none;
}

.accordion-content {
    animation: fadeIn var(--transition-speed) ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* New viewer layout */
.viewer-layout {
    display: flex;
    flex-direction: row;
    justify-content: left;
    gap: 30px;
    width: 100%;
    margin-bottom: 20px;
}

.primary-view-container {
    width: 1024px !important;
    height: 1024px !important;
    border: 3px solid #2196F3;
    border-radius: var(--border-radius);
    box-shadow: 0 0 0 1px rgba(33, 150, 243, 0.3), var(--box-shadow);
    overflow: hidden !important; /* Clip content to container boundaries */

    position: relative !important;

    justify-content: left !important; /* Center horizontally */
    background-color: black;
    transition: all var(--transition-speed) ease;
    padding: 0 !important;
    margin: 0 auto !important; /* Center horizontally */
    display: block !important; /* Use block display as in the original state */
    box-sizing: border-box !important;
}

.primary-view-container:hover {
    border-color: #42A5F5;
    box-shadow: 0 0 20px rgba(33, 150, 243, 0.4), 0 0 0 1px rgba(33, 150, 243, 0.5), var(--box-shadow);
}

.primary-view-container::after {
    content: "Primary View";
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: rgba(52, 152, 219, 0.7);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    opacity: 0;
    transition: opacity var(--transition-speed) ease;
}

.primary-view-container:hover::after {
    opacity: 1;
}

.secondary-views-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
    width: 785px;
}

.secondary-top-views {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    gap: 10px;
    width: 100%;
}

.secondary-views-container .block-container {
    border: 2px solid var(--secondary-color);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
    cursor: pointer;
    transition: all var(--transition-speed) ease;

    position: relative;

    background-color: black; /* Changed to black to match primary view */
    display: flex; /* Changed back to flex to center content */
    align-items: center; /* Center vertically */
    justify-content: left; /* Center horizontally */
    padding: 0;
    margin: 0 0 20px 0; /* Added bottom margin */
}

/* Volume viewer - Purple theme */
#volume.block-container, 
.volume-container {
    height: 555px !important;
    width: 785px !important;
    margin-top: 10px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    visibility: visible !important;
    opacity: 1 !important;
    z-index: 10 !important;
    position: relative !important;
    overflow: hidden !important;
    padding: 0 !important;
    border: 3px solid #9C27B0 !important;
    box-shadow: 0 0 0 1px rgba(156, 39, 176, 0.3), var(--box-shadow) !important;
}

#volume.block-container:hover,
.volume-container:hover {
    border-color: #AB47BC !important;
    box-shadow: 0 0 20px rgba(156, 39, 176, 0.4), 0 0 0 1px rgba(156, 39, 176, 0.5), var(--box-shadow) !important;
}

/* Specifically target canvas elements inside the volume container */
#volume canvas, 
.volume-container canvas {
    width: auto !important;
    height: auto !important;
    max-width: 100% !important;
    max-height: 100% !important;
    object-fit: contain !important;
    margin: 0 auto !important;
    display: block !important;
}

/* Remove any fixed dimensions that might be applied to canvas */
#volume div, 
.volume-container div {
    width: 100% !important;
    height: 100% !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
}

/* Coronal view - Green theme */
#slice_centerline.block-container {
    width: 390px;
    height: 390px;
    margin-right: 5px;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 3px solid #4CAF50 !important;
    box-shadow: 0 0 0 1px rgba(76, 175, 80, 0.3), var(--box-shadow) !important;
}

#slice_centerline.block-container:hover {
    border-color: #66BB6A !important;
    box-shadow: 0 0 20px rgba(76, 175, 80, 0.4), 0 0 0 1px rgba(76, 175, 80, 0.5), var(--box-shadow) !important;
}

/* Sagittal view - Orange theme */
#endoscopy.block-container {
    width: 390px;
    height: 390px;
    margin-right: 5px;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 3px solid #FF9800 !important;
    box-shadow: 0 0 0 1px rgba(255, 152, 0, 0.3), var(--box-shadow) !important;
}

#endoscopy.block-container:hover {
    border-color: #FFB74D !important;
    box-shadow: 0 0 20px rgba(255, 152, 0, 0.4), 0 0 0 1px rgba(255, 152, 0, 0.5), var(--box-shadow) !important;
}

/* Ensure side-by-side layout for top views */
.secondary-top-views {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    width: 785px;
}

/* Remove the "make primary" overlay
.secondary-views-container .block-container::after {
    content: "";
    display: none;
} */

.secondary-views-container .block-container:hover {
    transform: scale(1.02);
}

/* Remove hover effect for "make primary" overlay
.secondary-views-container .block-container:hover::after {
    opacity: 0;
    display: none;
} */

/* View labels */
.view-label {
    position: absolute;
    top: 10px;
    left: 10px;
    background-color: rgba(52, 152, 219, 0.7);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    z-index: 5;
    pointer-events: none;
}

/* View labels on hover */
#slice_centerline.block-container::after {
    content: "Coronal View";
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: rgba(76, 175, 80, 0.7);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    opacity: 0;
    transition: opacity var(--transition-speed) ease;
    pointer-events: none;
}

#slice_centerline.block-container:hover::after {
    opacity: 1;
}

#endoscopy.block-container::after {
    content: "Sagittal View";
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: rgba(255, 152, 0, 0.7);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    opacity: 0;
    transition: opacity var(--transition-speed) ease;
    pointer-events: none;
}

#endoscopy.block-container:hover::after {
    opacity: 1;
}

#volume.block-container::after,
.volume-container::after {
    content: "Volume View";
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: rgba(156, 39, 176, 0.7);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    opacity: 0;
    transition: opacity var(--transition-speed) ease;
    pointer-events: none;
}

#volume.block-container:hover::after,
.volume-container:hover::after {
    opacity: 1;
}

/* Base styling for all canvases */
.block-container canvas,
.block-container img {
    display: block;
    margin: 0 auto;
    z-index: 10; /* Ensure canvases are on top */
}

/* Primary view - specific settings for axial view (square aspect) */
/* Original styling - no modifications */

/* Active viewer highlight */
.viewer-active {
    border-width: 4px !important;
    filter: brightness(1.1);
    animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 0 25px var(--active-glow-color), 0 0 0 2px var(--active-glow-color), var(--box-shadow) !important;
    }
    50% {
        box-shadow: 0 0 35px var(--active-glow-color), 0 0 0 3px var(--active-glow-color), var(--box-shadow) !important;
    }
}

/* Define glow colors for active states */
.primary-view-container.viewer-active {
    --active-glow-color: rgba(33, 150, 243, 0.6);
}

#slice_centerline.viewer-active {
    --active-glow-color: rgba(76, 175, 80, 0.6);
}

#endoscopy.viewer-active {
    --active-glow-color: rgba(255, 152, 0, 0.6);
}

#volume.viewer-active,
.volume-container.viewer-active {
    --active-glow-color: rgba(156, 39, 176, 0.6);
}

/* Secondary views - for coronal and sagittal views (different aspect ratios) */
.secondary-views-container .block-container canvas,
.secondary-views-container .block-container img {
    height: 100% !important; /* Prioritize filling vertical space */
    width: auto !important; /* Let width adjust based on aspect ratio */
    max-width: 100% !important; /* But don't exceed container width */
    object-fit: contain !important; /* Maintain aspect ratio */
    display: block !important;
    margin: 0 auto !important; /* Center horizontally */
}

/* Container styling for all view blocks */
.block-container {
    background-color: #000;
    position: relative;
    overflow: hidden; /* Clip to container boundaries */
    box-sizing: border-box; /* Include padding/border in dimensions */
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
}

/* Ensure canvas containers are centered */
.block-container > div {
    position: relative !important;
    margin: 0 auto !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    width: 100% !important;
    height: 100% !important;
    top: 50% !important;
    left: 50% !important;
    transform: translate(-50%, -50%) !important;
}

/* Canvas inside containers */
.block-container canvas {
    position: relative;
    z-index: 10;
}

/* Styles for desktop view */
.block-container {
    transition: all var(--transition-speed) ease;
}

#surface,
#volume {
    display: none;
    transition: all var(--transition-speed) ease;
}

/* Styles for mobile view */
@media only screen and (max-width: 1400px) {
    .viewer-layout {
        flex-direction: column;
        align-items: center;
    }
    
    .primary-view-container {
        width: 100%;
        max-width: 800px;
        height: 800px;
    }
    
    .secondary-views-container {
        width: 100%;
        max-width: 800px;
        flex-direction: row;
        gap: 15px;
        margin-top: 20px;
    }
    
    .secondary-views-container .block-container {
        height: 400px;
        width: 50%;
    }
}

@media only screen and (max-width: 767px) {
    .viewer-layout {
        flex-direction: column;
        align-items: center;
    }
    
    .primary-view-container {
        width: 100%;
        max-width: 500px;
        height: 500px;
    }
    
    .secondary-views-container {
        width: 100%;
        max-width: 500px;
        flex-direction: column;
    }
    
    .secondary-views-container .block-container {
        height: 400px;
        width: 100%;
    }
    
    .block-container {
        display: block;
    }

    #surface,
    #volume {
        display: inline-block;
        animation: slideIn var(--transition-speed) ease;
    }
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(-20px); }
    to { opacity: 1; transform: translateX(0); }
}



/* Hide all section content by default */
#visualization-params > div + *,
#highlight-params > div + *,
#hanging-protocol > div + *,
#markups > div + *,
#system-markups > div + *,
#centerlines > div + *,
#label-editing > div + * {
    display: none;
}

/* Style the header to indicate it can be clicked */
#visualization-params > div {
    cursor: pointer;
    padding: 12px 15px;
    background-color: var(--light-bg);
    border: none;
    border-radius: var(--border-radius);
    margin-bottom: 12px;
    box-shadow: var(--box-shadow);
    font-weight: 500;
    color: var(--text-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all var(--transition-speed) ease;
}

#visualization-params > div:hover {
    background-color: var(--secondary-color);
    color: var(--light-text);
    transform: translateY(-2px);
}

/* Style the content area */
#visualization-params > div + * {
    padding: 15px;
    background-color: transparent;
    border: none;
    border-radius: var(--border-radius);
    margin-bottom: 15px;
    animation: fadeIn var(--transition-speed) ease;
}

/* Current mask, stat, and volume displays */
#curr-mask, #curr-stat, #curr-vol {
    font-size: 22px;
    color: var(--primary-color);
    font-weight: 500;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    transition: color var(--transition-speed) ease;
}

/* Button states */
.opened-button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    padding: 8px 15px;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    box-shadow: var(--box-shadow);
}

.opened-button:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
}

.closed-button {
    background-color: var(--accent-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    padding: 8px 15px;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    box-shadow: var(--box-shadow);
}

.closed-button:hover {
    background-color: #d35400;
    transform: translateY(-2px);
}

.loading-button {
    background-color: #95a5a6;
    color: white;
    border: none;
    border-radius: var(--border-radius);
    padding: 8px 15px;
    cursor: not-allowed;
    box-shadow: var(--box-shadow);
    position: relative;
    overflow: hidden;
}

.loading-button::after {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% { left: -100%; }
    100% { left: 100%; }
}



/* Hide these sections in the main frame - they should only appear in the sidebar */
#highlight-params,
#hanging-protocol,
#markups,
#system-markups,
#centerlines,
#label-editing,
#visualization-params {
    display: none !important;
}

/* Common styles for all parameter sections - Apple aesthetic */
/* Note: These styles won't apply to the main frame elements since they're hidden */
/* They need to be applied to the parent window's sidebar elements */
#highlight-params > div,
#hanging-protocol > div,
#markups > div,
#centerlines > div,
#label-editing > div {
    cursor: pointer;
    padding: 14px 20px;
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a6f 100%);
    border: none;
    border-radius: 12px;
    margin-bottom: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.3);
    font-weight: 600;
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all var(--transition-speed) ease;
    position: relative;
    font-size: 14px;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

/* Dark mode support for sections - maintain Apple aesthetic with slight adjustments */
body.dark-mode #highlight-params > div,
body.dark-mode #hanging-protocol > div,
body.dark-mode #markups > div,
body.dark-mode #centerlines > div,
body.dark-mode #label-editing > div {
    /* Keep the gradient backgrounds, just slightly darker in dark mode */
    filter: brightness(0.9);
}

/* Hover effects for section headers - Apple aesthetic */
#highlight-params > div:hover,
#hanging-protocol > div:hover,
#markups > div:hover,
#centerlines > div:hover,
#label-editing > div:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.4);
    filter: brightness(1.1);
}

/* Add indicator icon for expandable sections - Apple aesthetic */
#highlight-params > div::after,
#hanging-protocol > div::after,
#markups > div::after,
#centerlines > div::after,
#label-editing > div::after {
    content: "▾";
    font-size: 18px;
    font-weight: bold;
    transition: transform var(--transition-speed) cubic-bezier(0.68, -0.55, 0.27, 1.55);
    opacity: 0.8;
}

/* Common styles for content areas */
#highlight-params > div + *,
#hanging-protocol > div + *,
#markups > div + *,
#centerlines > div + *,
#label-editing > div + * {
    padding: 15px;
    background-color: transparent;
    border: none;
    border-radius: var(--border-radius);
    margin-bottom: 15px;
    cursor: pointer;
    animation: fadeIn var(--transition-speed) ease;
}

/* Dark mode support for content areas */
body.dark-mode #highlight-params > div + *,
body.dark-mode #hanging-protocol > div + *,
body.dark-mode #markups > div + *,
body.dark-mode #centerlines > div + *,
body.dark-mode #label-editing > div + * {
    background-color: hsl(210, 20%, 40%);
    color: hsl(210, 20%, 90%);
}

/* Dark mode support for inputs and selects */
body.dark-mode input,
body.dark-mode select,
body.dark-mode button {
    background-color: hsl(210, 20%, 30%);
    color: hsl(210, 20%, 90%);
    border-color: hsl(210, 20%, 45%);
}

/* Active state for headers - Apple aesthetic */
#highlight-params > div.active,
#hanging-protocol > div.active,
#markups > div.active,
#centerlines > div.active,
#label-editing > div.active {
    filter: brightness(0.85);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2), inset 0 1px 2px rgba(0, 0, 0, 0.2);
}

/* Rotate arrow when section is active/open */
#highlight-params > div.active::after,
#hanging-protocol > div.active::after,
#markups > div.active::after,
#centerlines > div.active::after,
#label-editing > div.active::after {
    transform: rotate(180deg);
}

/* Custom colors for each section type - Apple aesthetic */
#highlight-params > div {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

#hanging-protocol > div {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

#markups > div {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

#centerlines > div {
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
}

#label-editing > div {
    background: linear-gradient(135deg, #30cfd0 0%, #330867 100%);
}

<style >

#sidebar-logo {
    margin: 15px;
    text-align: center;
    transition: all var(--transition-speed) ease;
}

#sidebar-logo img {
    width: 100px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
    transition: all var(--transition-speed) ease;
}

#sidebar-logo:hover img {
    transform: scale(1.05);
}

/* Main Logo */
#main-logo {
    position: absolute;
    top: 15px;
    right: 15px;
    z-index: 100;
    transition: all var(--transition-speed) ease;
}

#main-logo img {
    width: 150px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
    transition: all var(--transition-speed) ease;
}

#main-logo:hover img {
    transform: scale(1.05);
}

/* Progress bar styling */
#progress-bar {
    width: 100%;
    height: 8px;
    background-color: var(--light-bg);
    border-radius: 4px;
    overflow: hidden;
    margin: 15px 0;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
}

#progress-bar .progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    width: 0;
    transition: width 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    border-radius: 4px;
    position: relative;
    overflow: hidden;
}

#progress-bar .progress::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    animation: progress-shine 1.5s linear infinite;
}

@keyframes progress-shine {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}


/* General form controls styling - Apple aesthetic */
input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    height: 10px;
    border-radius: 5px;
    background: linear-gradient(to right, #e0e0e0 0%, #e0e0e0 100%);
    outline: none;
    pointer-events: auto !important;
    transition: all var(--transition-speed) ease;
    position: relative;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 0 rgba(255, 255, 255, 0.8);
}

/* Progress fill effect */
input[type="range"]::-webkit-slider-runnable-track {
    width: 100%;
    height: 10px;
    cursor: pointer;
    border-radius: 5px;
    background: inherit;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: linear-gradient(135deg, #ffffff 0%, #f0f0f0 100%);
    cursor: pointer;
    pointer-events: auto !important;
    transition: all var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(0, 0, 0, 0.1);
    margin-top: -6px;
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.15);
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

input[type="range"]::-webkit-slider-thumb:active {
    transform: scale(1.1);
    background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3), inset 0 2px 3px rgba(0, 0, 0, 0.1);
}

/* Firefox range styling - Apple aesthetic */
input[type="range"]::-moz-range-track {
    height: 10px;
    border-radius: 5px;
    background: linear-gradient(to right, #e0e0e0 0%, #e0e0e0 100%);
    border: none;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 0 rgba(255, 255, 255, 0.8);
}

input[type="range"]::-moz-range-thumb {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: linear-gradient(135deg, #ffffff 0%, #f0f0f0 100%);
    cursor: pointer;
    border: 1px solid rgba(0, 0, 0, 0.1);
    pointer-events: auto !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.9);
    transition: all var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
}

input[type="range"]::-moz-range-thumb:hover {
    transform: scale(1.15);
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

input[type="range"]::-moz-range-thumb:active {
    transform: scale(1.1);
    background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3), inset 0 2px 3px rgba(0, 0, 0, 0.1);
}

/* Disabled range input styling */
input[type="range"]:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    background: #666 !important;
    pointer-events: none !important;
}

input[type="range"]:disabled::-webkit-slider-thumb {
    opacity: 0.4;
    cursor: not-allowed;
    background: #888 !important;
    pointer-events: none !important;
}

input[type="range"]:disabled::-moz-range-thumb {
    opacity: 0.4;
    cursor: not-allowed;
    background: #888 !important;
    pointer-events: none !important;
}

/* Enabled range input styling - Apple aesthetic */
input[type="range"]:not(:disabled) {
    opacity: 1 !important;
    cursor: pointer !important;
    pointer-events: auto !important;
}

input[type="range"]:not(:disabled)::-webkit-slider-thumb {
    opacity: 1 !important;
    cursor: pointer !important;
    pointer-events: auto !important;
}

input[type="range"]:not(:disabled)::-moz-range-thumb {
    opacity: 1 !important;
    cursor: pointer !important;
    pointer-events: auto !important;
}

/* Add colored progress fill for specific sliders */
input[type="range"].blue-slider {
    background: linear-gradient(to right, #2196F3 0%, #2196F3 var(--value, 0%), #e0e0e0 var(--value, 0%), #e0e0e0 100%);
}

input[type="range"].green-slider {
    background: linear-gradient(to right, #4CAF50 0%, #4CAF50 var(--value, 0%), #e0e0e0 var(--value, 0%), #e0e0e0 100%);
}

input[type="range"].orange-slider {
    background: linear-gradient(to right, #FF9800 0%, #FF9800 var(--value, 0%), #e0e0e0 var(--value, 0%), #e0e0e0 100%);
}

input[type="range"].purple-slider {
    background: linear-gradient(to right, #9C27B0 0%, #9C27B0 var(--value, 0%), #e0e0e0 var(--value, 0%), #e0e0e0 100%);
}

/* Ensure sliders in markup panels work */
#elliptical_slider_rx,
#elliptical_slider_ry, 
#elliptical_slider_rz,
#circle_slider_radius {
    pointer-events: auto !important;
    position: relative;
    z-index: 100;
}

/* Force enabled appearance for specific markup sliders - Apple aesthetic */
#elliptical_slider_rx:not(:disabled),
#elliptical_slider_ry:not(:disabled),
#elliptical_slider_rz:not(:disabled),
#circle_slider_radius:not(:disabled) {
    opacity: 1 !important;
    filter: none !important;
    -webkit-filter: none !important;
    cursor: pointer !important;
    pointer-events: auto !important;
    background: linear-gradient(to right, #4facfe 0%, #4facfe var(--value, 0%), #e0e0e0 var(--value, 0%), #e0e0e0 100%) !important;
}

/* Override theme filters for all markup sliders - prevents dark mode from inverting them */
input[type="range"]#elliptical_slider_rx,
input[type="range"]#elliptical_slider_ry,
input[type="range"]#elliptical_slider_rz,
input[type="range"]#circle_slider_radius {
    filter: none !important;
    -webkit-filter: none !important;
}

#elliptical_slider_rx:not(:disabled)::-webkit-slider-thumb,
#elliptical_slider_ry:not(:disabled)::-webkit-slider-thumb,
#elliptical_slider_rz:not(:disabled)::-webkit-slider-thumb,
#circle_slider_radius:not(:disabled)::-webkit-slider-thumb {
    opacity: 1 !important;
    cursor: pointer !important;
    pointer-events: auto !important;
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%) !important;
    box-shadow: 0 2px 8px rgba(79, 172, 254, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.3) !important;
}

#elliptical_slider_rx:not(:disabled)::-webkit-slider-thumb:hover,
#elliptical_slider_ry:not(:disabled)::-webkit-slider-thumb:hover,
#elliptical_slider_rz:not(:disabled)::-webkit-slider-thumb:hover,
#circle_slider_radius:not(:disabled)::-webkit-slider-thumb:hover {
    transform: scale(1.15) !important;
    box-shadow: 0 3px 12px rgba(79, 172, 254, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.4) !important;
}

/* Button styling */
button {
    padding: 8px 16px;
    border: none;
    border-radius: var(--border-radius);
    background-color: var(--primary-color);
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    box-shadow: var(--box-shadow);
    outline: none;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

button:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
}

button:active {
    transform: translateY(1px);
}

/* Opened/Closed button states for centerline controls */
button.opened-button {
    background-color: #66bb6a !important;
    color: white !important;
}

button.opened-button:hover {
    background-color: #4caf50 !important;
}

button.closed-button {
    background-color: #bdbdbd !important;
    color: #424242 !important;
}

button.closed-button:hover {
    background-color: #9e9e9e !important;
}

/* Aorta Analysis Modal Specific Styles */
#aorta-analysis-modal button:hover {
    filter: brightness(1.2);
    transform: translateY(-2px);
}

#aorta-analysis-modal button:active {
    transform: translateY(0);
}

#export-aorta-measurements:hover {
    background: #22c93a !important;
}

#reset-aorta-view:hover {
    background: #1e88e5 !important;
}

#close-aorta-analysis:hover {
    background: #c82333 !important;
}

/* Centerline position slider - Apple aesthetic with blue theme */
#centerline-position-slider {
    -webkit-appearance: none;
    appearance: none;
    height: 10px;
    background: linear-gradient(to right, #3498db 0%, #3498db var(--value, 0%), #444 var(--value, 0%), #444 100%);
    outline: none;
    opacity: 0.9;
    transition: all 0.3s ease;
    border-radius: 5px;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 0 rgba(255, 255, 255, 0.1);
}

#centerline-position-slider:hover {
    opacity: 1;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 0 rgba(255, 255, 255, 0.2), 0 0 10px rgba(52, 152, 219, 0.3);
}

#centerline-position-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 22px;
    height: 22px;
    background: linear-gradient(135deg, #5dade2 0%, #3498db 100%);
    cursor: pointer;
    border-radius: 50%;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.8);
    margin-top: -6px;
}

#centerline-position-slider::-webkit-slider-thumb:hover {
    transform: scale(1.15);
    box-shadow: 0 3px 12px rgba(52, 152, 219, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.4);
    background: linear-gradient(135deg, #85c1e9 0%, #5dade2 100%);
}

#centerline-position-slider::-webkit-slider-thumb:active {
    transform: scale(1.1);
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.4), inset 0 2px 3px rgba(0, 0, 0, 0.2);
}

#centerline-position-slider::-moz-range-thumb {
    width: 22px;
    height: 22px;
    background: linear-gradient(135deg, #5dade2 0%, #3498db 100%);
    cursor: pointer;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.8);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

#centerline-position-slider::-moz-range-thumb:hover {
    transform: scale(1.15);
    box-shadow: 0 3px 12px rgba(52, 152, 219, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.4);
    background: linear-gradient(135deg, #85c1e9 0%, #5dade2 100%);
}

#centerline-position-slider::-moz-range-thumb:active {
    transform: scale(1.1);
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.4), inset 0 2px 3px rgba(0, 0, 0, 0.2);
}
/* Aorta Analysis Modal Styles - Force Dark Theme */
#aorta-analysis-modal {
    background: rgba(0,0,0,0.8) !important;
}

#aorta-analysis-modal > div {
    background: #1e1e1e !important;
    color: #e0e0e0 !important;
}

#aorta-analysis-modal h2,
#aorta-analysis-modal h3,
#aorta-analysis-modal h4 {
    color: #f8f9fa !important;
}

#aorta-analysis-modal canvas {
    background: #0a0a0a !important;
    border: 2px solid #444 !important;
}

#aorta-analysis-modal label {
    color: #e0e0e0 !important;
}

#aorta-analysis-modal select {
    background: #2a2a2a !important;
    color: #e0e0e0 !important;
    border: 1px solid #444 !important;
}

/* Measurements panel specific styling */
#aorta-measurements {
    background: #2a2a2a !important;
    color: #e0e0e0 !important;
}

#aorta-measurements div {
    color: #e0e0e0 !important;
}

#aorta-diameter,
#aorta-area,
#aorta-circumference,
#aorta-location {
    color: #3498db !important;
    font-weight: bold !important;
}

/* Anatomic Landmarks Section Styling */
#anatomic-landmarks {
    margin-top: 15px;
    background: transparent !important;
}

#anatomic-landmarks > div {
    cursor: pointer;
    padding: 12px 15px;
    background-color: var(--light-bg);
    border: none;
    border-radius: var(--border-radius);
    margin-bottom: 12px;
    box-shadow: var(--box-shadow);
    font-weight: 500;
    color: var(--text-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all var(--transition-speed) ease;
    border-left: 4px solid #9b59b6;
}

#anatomic-landmarks > div:hover {
    background-color: var(--secondary-color);
    color: var(--light-text);
    transform: translateY(-2px);
}

#anatomic-landmarks > div::after {
    content: ""; /* Arrow now handled inline in HTML */
    font-size: 16px;
    transition: transform var(--transition-speed) cubic-bezier(0.68, -0.55, 0.27, 1.55);
}

#anatomic-landmarks > div.active::after {
    transform: rotate(180deg);
}

#anatomic-landmarks > div + * {
    display: none;
    padding: 15px;
    background-color: transparent;
    border: none;
    border-radius: var(--border-radius);
    margin-bottom: 15px;
    animation: fadeIn var(--transition-speed) ease;
}

/* Anatomic landmarks buttons with better contrast */
#anatomic-landmarks button {
    background-color: #7f3f98;
    color: white;
    font-weight: 600;
    border: 1px solid rgba(0, 0, 0, 0.2);
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}

#anatomic-landmarks button:hover {
    background-color: #6a3480;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

#anatomic-landmarks button:active {
    background-color: #5a2c6d;
}

/* Anatomic landmark buttons styling */
.landmark-btn {
    padding: 10px 8px;
    border: none;
    border-radius: 6px;
    color: white;
    font-weight: 600;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.2);
    white-space: normal;
    text-align: center;
    line-height: 1.15;
    min-height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.landmark-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.3);
    filter: brightness(1.15);
}

.landmark-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* Aortic Arch Region landmarks - Blue/Cyan with gradient */
.landmark-btn.arch-region {
    background: linear-gradient(135deg, #4FC3F7, #29B6F6);
    background-color: #29B6F6;
}

/* Abdominal Vessels landmarks - Orange/Warm with gradient */
.landmark-btn.abdominal {
    background: linear-gradient(135deg, #FFB74D, #FF9800);
    background-color: #FF9800;
}

/* Pathology landmarks - Red/Pink with gradient */
.landmark-btn.pathology {
    background: linear-gradient(135deg, #EF5350, #E53935);
    background-color: #E53935;
}

/* Centerlines Panel Styling - matches Anatomic Landmarks */
#centerlines-panel > div:first-child {
    cursor: pointer;
    padding: 12px 15px;
    background-color: var(--light-bg);
    border: none;
    border-radius: var(--border-radius);
    margin-bottom: 12px;
    box-shadow: var(--box-shadow);
    font-weight: 500;
    color: var(--text-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all var(--transition-speed) ease;
    border-left: 4px solid #fa709a;
}

#centerlines-panel > div:first-child:hover {
    background-color: var(--secondary-color);
    color: var(--light-text);
    transform: translateY(-2px);
}

#centerlines-buttons {
    background-color: var(--light-bg);
    border-radius: var(--border-radius);
    padding: 15px;
    box-shadow: var(--box-shadow);
    color: var(--text-color);
}

/* Dark mode support for centerlines panel */
body.dark-mode #centerlines-panel > div:first-child {
    background-color: hsl(210, 20%, 35%);
    color: hsl(210, 20%, 90%);
}

body.dark-mode #centerlines-buttons {
    background-color: hsl(210, 20%, 35%);
    color: hsl(210, 20%, 90%);
}

/* Centerline view buttons */
#centerlines-buttons button.opened-button {
    background-color: #4CAF50;
    color: white;
}

#centerlines-buttons button.closed-button {
    background-color: #f44336;
    color: white;
}

#centerlines-buttons button:hover {
    opacity: 0.8;
    transform: translateY(-1px);
}

/* Centerline buttons styling */
.centerline-btn {
    padding: 10px 8px;
    border: none;
    border-radius: 6px;
    color: white;
    font-weight: 600;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.2);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.65; /* Default inactive state */
}

.centerline-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.3);
    filter: brightness(1.15);
    opacity: 0.85;
}

.centerline-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.centerline-btn.selected {
    box-shadow: 0 0 0 3px rgba(33, 150, 243, 0.5), 0 3px 6px rgba(0, 0, 0, 0.2);
    transform: scale(1.05);
}

/* Active centerline button - fully opaque and slightly larger */
.centerline-btn.active {
    opacity: 1;
    transform: scale(1.05);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.centerline-btn.active:hover {
    transform: scale(1.05) translateY(-2px);
    opacity: 1;
}

/* Different centerline types with unique colors */
.centerline-btn.aorta {
    background: linear-gradient(135deg, #E91E63, #C2185B) !important;
    background-color: #E91E63 !important;
}

.centerline-btn.coronary {
    background: linear-gradient(135deg, #9C27B0, #7B1FA2) !important;
    background-color: #9C27B0 !important;
}

.centerline-btn.carotid {
    background: linear-gradient(135deg, #3F51B5, #303F9F) !important;
    background-color: #3F51B5 !important;
}

.centerline-btn.renal {
    background: linear-gradient(135deg, #00BCD4, #0097A7) !important;
    background-color: #00BCD4 !important;
}

.centerline-btn.iliac {
    background: linear-gradient(135deg, #009688, #00796B) !important;
    background-color: #009688 !important;
}

.centerline-btn.vertebral {
    background: linear-gradient(135deg, #4CAF50, #388E3C) !important;
    background-color: #4CAF50 !important;
}

.centerline-btn.subclavian {
    background: linear-gradient(135deg, #FF5722, #D84315) !important;
    background-color: #FF5722 !important;
}

.centerline-btn.celiac {
    background: linear-gradient(135deg, #795548, #5D4037) !important;
    background-color: #795548 !important;
}

.centerline-btn.sma {
    background: linear-gradient(135deg, #FFC107, #F57C00) !important;
    background-color: #FFC107 !important;
}

.centerline-btn.ima {
    background: linear-gradient(135deg, #FF9800, #E65100) !important;
    background-color: #FF9800 !important;
}

/* Default color for unknown centerline types */
.centerline-btn.default {
    background: linear-gradient(135deg, #607D8B, #455A64) !important;
    background-color: #607D8B !important;
}

/* Dark mode support for landmark buttons */
body.dark-mode .landmark-btn {
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.5);
}

body.dark-mode .landmark-btn:hover {
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.6);
}

/* Clear all landmarks button */
#clear-all-landmarks:hover {
    background-color: #555 !important;
}

/* Landmark list styling */
#main-landmark-list {
    max-height: 200px;
    overflow-y: auto;
    margin-top: 10px;
    padding: 10px;
    background-color: #f5f5f5;
    border-radius: 4px;
    font-size: 14px;
}

#main-landmark-list:empty::before {
    content: "No landmarks detected";
    color: #888;
    font-style: italic;
}

/* Dark mode support for anatomic landmarks */
body.dark-mode #anatomic-landmarks > div {
    background-color: hsl(210, 20%, 35%);
    color: hsl(210, 20%, 90%);
}

body.dark-mode #anatomic-landmarks > div + * {
    background-color: hsl(210, 20%, 40%);
    color: hsl(210, 20%, 90%);
}

body.dark-mode #anatomic-landmarks select,
body.dark-mode #main-landmark-list {
    background-color: hsl(210, 20%, 30%);
    color: hsl(210, 20%, 90%);
    border-color: hsl(210, 20%, 45%);
}

/* Floating Action Bar active states */
.fab-button.active-state {
    background-color: #4CAF50 !important;
    color: white !important;
}

/* Different colors for different button types */
.fab-button[data-action="coronal"].active-state,
.fab-button[data-action="sagittal"].active-state,
.fab-button[data-action="surface"].active-state {
    background-color: #2196F3 !important; /* Blue for view toggles */
}

.fab-button[data-action="hover"].active-state {
    background-color: #FF9800 !important; /* Orange for hover mode */
}

.fab-button[data-action="critical"].active-state {
    background-color: #F44336 !important; /* Red for critical findings */
}

.fab-button[data-action="centerlines"].active-state {
    background-color: #4CAF50 !important; /* Green for centerlines */
}