/* ===== MODERN COLOR SCALE GENERATOR STYLES ===== */

/* ===== HOW IT WORKS SECTION ===== */

/* Learn More Link in Subtitle */
.learn-more-wrapper {
    margin-top: 1.5rem;
}

.learn-more-link {
    display: inline-flex;
    align-items: center;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.learn-more-link:hover {
    color: var(--primary-color-hover);
    text-decoration: underline;
}

/* How It Works Content */
.how-it-works-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.features-subtitle {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--title-color);
    margin: 0 0 1rem 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.feature-block {
    padding: 1.5rem;
    background: var(--secondary-bg);
    border-radius: 0.75rem;
    border: 1px solid var(--border-color);
}

.feature-block .feature-icon {
    width: 18px;
    height: 18px;
    color: var(--primary-color);
    margin-right: 0.5rem;
    flex-shrink: 0;
    stroke-width: 1.5;
}

.feature-block strong {
    display: flex;
    align-items: center;
    color: var(--title-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.feature-block p {
    color: var(--text-color);
    font-size: 0.9rem;
    line-height: 1.5;
    margin: 0;
}

.technical-grid {
    display: block;
    background: var(--secondary-bg);
    border-radius: 0.75rem;
    border-left: 3px solid var(--primary-color);
    padding: 1.5rem;
}

.technical-block {
    font-size: 0.9rem;
    line-height: 1.4;
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.technical-block:last-child {
    margin-bottom: 0;
}

.technical-block strong {
    color: var(--title-color);
    font-weight: 600;
}

/* Floating Back to Top Button */
.back-to-top-btn {
    position: fixed;
    bottom: 2rem;
    right: 1rem;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
}

.back-to-top-btn.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top-btn:hover {
    background: var(--primary-color-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.back-to-top-btn svg {
    width: 24px;
    height: 24px;
    stroke-width: 2.5;
}

/* Medium screen adjustments */
@media (max-width: 1024px) and (min-width: 769px) {
    .combined-controls-row {
        gap: 1rem;
    }
    
    .combined-controls-row .scale-config {
        min-width: 260px;
    }
    
    .combined-controls-row .accessibility-mode-config {
        min-width: 200px;
    }
}

/* Responsive Design for How It Works */
@media (max-width: 768px) {
    .how-it-works-section {
        padding: 2rem 0;
    }
    
    .section-header {
        flex-direction: column;
        text-align: center;
        margin-bottom: 2rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .feature-block {
        padding: 1rem;
    }
    
    .back-to-top-btn {
        bottom: 1rem;
        right: 1rem;
        width: 44px;
        height: 44px;
    }
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 14px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--primary-bg);
    transition: background-color 0.3s ease, color 0.3s ease;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ===== CORE LAYOUT COMPONENTS ===== */

/* Header */
.app-header {
    background: var(--header-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 2rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 0 0 rgba(0, 0, 0, 0); /* Start with no shadow */
    transition-property: padding, box-shadow, background, border-bottom;
    transition-duration: 0.3s, 0.15s, 0.3s, 0.3s;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1), ease-in, cubic-bezier(0.4, 0, 0.2, 1), cubic-bezier(0.4, 0, 0.2, 1);
    transition-delay: 0, 0, 0, 0; /* No delay when returning to normal state */
}

.app-header.scrolled {
    padding: 1rem 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    /* Delay the shadow animation to start after the header transition completes */
    transition-delay: 0, 0.3s; /* No delay for padding, 0.3s delay for box-shadow */
    transition-property: padding, box-shadow, background;
    transition-duration: 0.3s, 0.2s, 0.3s;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1), ease-out, cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark mode scrolled header with transparency */
.dark-theme .app-header.scrolled {
    background: rgba(var(--header-bg-rgb), 0.6);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    text-align: left;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
}

.header-left-section {
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    gap: 1rem;
    width: 100%;
}

.header-title-and-toggle {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    /* width: 100%; */
    gap: 1rem;
}

.app-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
    /* flex: 1; */
}

.app-header.scrolled .app-title {
    font-size: 1.5rem;
    color: var(--primary-color);
    width: fit-content;
}

.title-text-full,
.title-text-short {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.title-text-short {
    display: none;
}

.app-header.scrolled .title-text-full {
    display: none;
}

.app-header.scrolled .title-text-short {
    display: inline;
}

.title-icon {
    width: 2.25rem;
    height: 2.25rem;
    color: var(--primary-color);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    flex-shrink: 0;
}

.app-header.scrolled .title-icon {
    width: 1.75rem;
    height: 1.75rem;
    color: var(--primary-color);
}

/* Sticky Header Controls */
.header-sticky-controls {
    display: none;
    align-items: center;
    gap: 1rem;
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
    margin-left: 1rem;
}

.app-header.show-sticky-controls .header-sticky-controls {
    opacity: 1;
    transform: translateY(0);
    pointer-events: all;
}

.sticky-separator {
    color: var(--subtitle-color);
    font-size: 1.25rem;
    font-weight: 300;
    margin: 0 0.5rem;
}

.sticky-control-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sticky-control-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--label-color);
    white-space: nowrap;
}

.sticky-color-input {
    width: 32px;
    height: 32px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    padding: 0;
    background: none;
}

.sticky-color-input::-webkit-color-swatch-wrapper {
    padding: 0;
    border: none;
    border-radius: 4px;
    overflow: hidden;
}

.sticky-color-input::-webkit-color-swatch {
    border: none;
    border-radius: 4px;
}

.sticky-color-input:hover {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(var(--primary-color-rgb), 0.1);
}


.sticky-scale-select {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 6px;
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.2s ease;
    outline: none;
    min-width: 100px;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=US-ASCII,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 4 5'><path fill='%23666' d='M2 0L0 2h4zm0 5L0 3h4z'/></svg>");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 0.65rem;
    padding-right: 2.5rem;
}

.sticky-scale-select:hover {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(var(--primary-color-rgb), 0.1);
}

.sticky-scale-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(var(--primary-color-rgb), 0.2);
}

/* Header Theme Toggle */
.header-theme-toggle {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
}

.header-description {
    width: 100%;
    margin-top: 0rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.app-header.scrolled .header-description {
    display: none;
}

.app-header.scrolled .header-title-and-toggle {
    align-items: center;
    gap: 1rem;
}

.app-header.scrolled .header-sticky-controls {
    display: flex;
    margin-left: 0;
    flex: 1;
    order: 2;
}

.app-header.scrolled .header-left-section {
    flex-direction: row;
    align-items: center;
    width: 100%;
    gap: 1rem;
    position: relative;
}

.app-header.scrolled .header-title-and-toggle {
    display: flex;
    align-items: center;
    width: auto;
    flex-shrink: 0;
    order: 1;
}

.app-header.scrolled .header-title-and-toggle .app-title {
    order: 1;
}

/* Removed absolute positioning - keeping theme toggle in normal flow */

@keyframes gentle-bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-2px); }
}

.app-subtitle {
    font-size: 1.125rem;
    color: var(--subtitle-color);
    font-weight: 400;
    max-width: 800px;
}

.how-it-works {
    max-width: 900px;
    margin: 0 auto;
    text-align: left;
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.explanation-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--title-color);
    margin-bottom: 1rem;
}

.explanation-text {
    font-size: 1rem;
    color: var(--text-color);
    margin-bottom: 0.75rem;
    line-height: 1.6;
}

.explanation-note {
    font-size: 0.95rem;
    color: var(--subtitle-color);
    margin-bottom: 1rem;
    font-style: italic;
}

.explanation-list,
.accessibility-list {
    margin: 0.5rem 0 1rem 1.5rem;
    padding: 0;
}

.explanation-list li,
.accessibility-list li {
    margin-bottom: 0.5rem;
    color: var(--text-color);
    line-height: 1.5;
}

.accessibility-info {
    background: var(--column-header-bg);
    padding: 1rem;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
    margin-top: 1rem;
}

.accessibility-info strong {
    color: var(--title-color);
}

/* Modern Theme Toggle */
.toggle-track {
    position: relative;
    width: 32px;
    height: 18px;
    background: #e5e7eb;
    border-radius: 9px;
    border: 1px solid #d1d5db;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    outline: none;
    padding: 0;
}

.toggle-track:hover {
    background: #d1d5db;
    box-shadow: 0 0 0 3px rgba(var(--primary-color-rgb), 0.1);
}

.toggle-track:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(var(--primary-color-rgb), 0.2);
}

.toggle-track:hover .toggle-thumb {
    transform: scale(1.05);
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.2), 0 2px 4px rgba(0, 0, 0, 0.15);
}

.dark-theme #themeToggle.toggle-track:hover .toggle-thumb {
    transform: translateX(14px) scale(1.05);
}

.toggle-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-color);
    transition: color 0.2s ease;
    pointer-events: none;
}

.toggle-thumb {
    position: absolute;
    top: 1px;
    left: 1px;
    width: 14px;
    height: 14px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    border: 1px solid #d1d5db;
}

.theme-icon {
    width: 0.75rem;
    height: 0.75rem;
    color: var(--primary-color);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark mode states - only for theme toggle */
.dark-theme #themeToggle.toggle-track {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.dark-theme #themeToggle.toggle-track:hover {
    background: var(--primary-color-hover);
    box-shadow: 0 0 0 3px rgba(var(--primary-color-rgb), 0.2);
}

.dark-theme #themeToggle .toggle-thumb {
    transform: translateX(14px);
    background: white !important;
    border: 1px solid rgba(255, 255, 255, 0.2) !important;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.dark-theme #themeToggle .theme-icon {
    color: var(--primary-color) !important;
}

.dark-theme .theme-icon {
    transform: rotate(0deg);
    color: var(--primary-color);
}

/* Light mode theme toggle styling - white thumb with blue sun */
#themeToggle .toggle-thumb {
    background: white;
    border: 1px solid var(--border-color);
}

#themeToggle .theme-icon {
    color: var(--primary-color);
}

/* Light mode icon rotation */
.light-theme .theme-icon {
    transform: rotate(180deg);
}

/* Main Content */
.app-main {
    flex: 1;
    max-width: 1400px;
    margin: 0 auto;
    padding: 3rem 2rem;
    width: 100%;
}

/* Input Section */
.input-section {
    margin-bottom: 3rem;
}

.input-container {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.input-container:hover {
    box-shadow: var(--shadow-md);
}

.input-label {
    display: block;
    font-weight: 600;
    color: var(--label-color);
    margin-bottom: 1.5rem;
    font-size: 1.125rem;
}

/* Combined Controls Row */
.combined-controls-row {
    display: flex;
    gap: 1.5rem;
    align-items: flex-end;
    flex-wrap: wrap;
    min-height: 44px; /* Match segmented control height */
    margin-bottom: 1rem;
}

/* Toggles Row */
.toggles-row {
    display: flex;
    gap: 2rem;
    align-items: center;
    padding: 0 1rem;
    min-width:fit-content;
}

.combined-controls-row .color-picker-container {
    flex: 0 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex-shrink: 0;
}

.combined-controls-row .color-picker-group {
    height: 44px; /* Match segmented control height */
}

.combined-controls-row .scale-config {
    min-width: 280px;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex-shrink: 0;
}

.combined-controls-row .scale-config .scale-controls-row {
    display: flex;
    align-items: center;
    gap: 2rem;
    height: 44px;
    justify-content: flex-start;
}

.combined-controls-row .scale-config .segmented-control {
    height: 44px;
    padding: 6px;
    /* flex: 1; */
}

.combined-controls-row .view-mode-toggle {
    flex: 0 0 auto;
    height: auto;
    display: flex;
    align-items: center;
}

.input-group {
    display: flex;
    gap: 1rem;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.color-input {
    flex: 1;
    min-width: 200px;
    padding: 0.875rem 1rem;
    border: 2px solid var(--input-border);
    border-radius: 12px;
    font-size: 1rem;
    font-family: 'Monaco', 'Menlo', monospace;
    background: var(--input-bg);
    color: var(--text-color);
    transition: all 0.3s ease;
}

.color-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-color-alpha);
}

/* Base color picker styles */
.color-picker {
    border: none;
    cursor: pointer;
    background: none;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
}

/* Large color picker (main controls) */
.color-picker-large {
    width: 50px;
    height: 50px;
    border-radius: var(--border-radius-md, 12px);
    transition: transform 0.2s ease;
}

.color-picker-large:hover {
    transform: scale(1.05);
}

.generate-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0.875rem 1.5rem;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1rem;
    white-space: nowrap;
}

.generate-btn:hover {
    background: var(--primary-color-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.generate-btn:active {
    transform: translateY(0);
}

/* Scale Configuration */
.scale-config {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Scale Config in Combined Row */
.combined-controls-row .scale-config {
    gap: 0.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.combined-controls-row .scale-config .config-label,
.combined-controls-row .color-picker-container .config-label,
.combined-controls-row .accessibility-mode-config .config-label {
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    line-height: 1.2;
    font-weight: 500;
    color: var(--label-color);
}

.scale-controls-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
}

.view-mode-toggle {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
}

/* View mode toggle in combined row */
.combined-controls-row .view-mode-toggle {
    height: 44px;
    min-height: 44px;
}

/* Accessibility Mode Configuration */
.accessibility-mode-config {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex-shrink: 0;
    min-width: 240px;
}

.accessibility-controls-row {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Make accessibility controls match scale controls height */
.combined-controls-row .accessibility-mode-config .accessibility-controls-row {
    display: flex;
    align-items: center;
    gap: 2rem;
    height: 44px;
    justify-content: flex-start;
}

.combined-controls-row .accessibility-mode-config .segmented-control {
    height: 44px;
    padding: 6px;
}

/* View Mode Toggle Styles */
/* #viewModeToggle inherits from .toggle-track - no custom sizing needed */

#viewModeToggle:hover {
    background: #d1d5db;
    box-shadow: 0 0 0 3px rgba(var(--primary-color-rgb), 0.1);
}

#viewModeToggle:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(var(--primary-color-rgb), 0.2);
}

/* #viewModeToggle .toggle-thumb inherits from .toggle-thumb - no custom sizing needed */

/* Active state (minimal view) */
body.minimal-view #viewModeToggle {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

body.minimal-view #viewModeToggle:hover {
    background: var(--primary-color-hover);
    box-shadow: 0 0 0 3px rgba(var(--primary-color-rgb), 0.2);
}

body.minimal-view #viewModeToggle .toggle-thumb {
    transform: translateX(14px);
    background: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

body.minimal-view .view-mode-icon {
    color: var(--primary-color);
    transform: rotate(0deg);
}

/* Sticky View Toggle */
.sticky-view-toggle {
    position: relative;
    width: 32px;
    height: 18px;
    background: #e5e7eb;
    border: 1px solid #d1d5db;
    border-radius: 9px;
    cursor: pointer;
    transition: all 0.2s ease;
    outline: none;
    padding: 0;
}

.sticky-view-toggle:hover {
    background: #d1d5db;
    box-shadow: 0 0 0 3px rgba(var(--primary-color-rgb), 0.1);
}

.sticky-view-toggle:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(var(--primary-color-rgb), 0.1);
}

.sticky-toggle-thumb {
    position: absolute;
    top: 1px;
    left: 1px;
    width: 14px;
    height: 14px;
    background: white;
    border-radius: 50%;
    transition: all 0.2s ease;
    border: 1px solid #d1d5db;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

/* Active state for sticky toggle */
body.minimal-view .sticky-view-toggle {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

body.minimal-view .sticky-toggle-thumb {
    transform: translateX(14px);
    background: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

/* Sticky Enhanced Mode Toggle */
.sticky-enhanced-toggle {
    position: relative;
    width: 32px;
    height: 18px;
    background: #e5e7eb;
    border: 1px solid #d1d5db;
    border-radius: 9px;
    cursor: pointer;
    transition: all 0.2s ease;
    outline: none;
    padding: 0;
}

.sticky-enhanced-toggle:hover {
    background: #d1d5db;
    box-shadow: 0 0 0 3px rgba(var(--primary-color-rgb), 0.1);
}

.sticky-enhanced-toggle:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(var(--primary-color-rgb), 0.1);
}

/* Active state for sticky enhanced toggle */
body.enhanced-algorithms-active .sticky-enhanced-toggle {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

body.enhanced-algorithms-active .sticky-enhanced-toggle .sticky-toggle-thumb {
    transform: translateX(14px);
    background: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

/* Sticky Preview Button */
.sticky-preview-btn {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 6px;
    padding: 0.5rem 0.75rem;
    font-size: 0.8125rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
    height: 31.5px;
    box-sizing: border-box;
}

.sticky-preview-btn:hover {
    background: var(--primary-color-hover);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(var(--primary-color-rgb), 0.3);
}

.sticky-preview-btn svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.sticky-preview-btn span {
    font-size: 0.8125rem;
}

/* Live Preview Lightbox */
.preview-lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.preview-lightbox:not(.hidden) {
    opacity: 1;
    visibility: visible;
}

.lightbox-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    cursor: pointer;
}

.lightbox-content {
    position: relative;
    background: var(--card-bg);
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
    max-width: 90vw;
    max-height: 90vh;
    width: 1000px;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border-color);
    transform: scale(0.95);
    transition: transform 0.3s ease;
}

.preview-lightbox:not(.hidden) .lightbox-content {
    transform: scale(1);
}

.lightbox-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
    border-radius: 16px 16px 0 0;
}

.lightbox-header-left {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
    flex: 1;
}

.lightbox-header-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.lightbox-subtitle {
    font-size: 0.95rem;
    color: var(--subtitle-color);
    margin: 0;
    line-height: 1.4;
}

.lightbox-controls {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.lightbox-dark-mode-toggle {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Lightbox theme toggle styling - same as main toggle */
.lightbox-dark-mode-toggle .toggle-track {
    width: 32px;
    height: 18px;
}

.lightbox-dark-mode-toggle .toggle-thumb {
    width: 14px;
    height: 14px;
}

.lightbox-dark-mode-toggle .theme-icon {
    width: 0.75rem;
    height: 0.75rem;
    color: #6b7280;
    transition: color 0.2s ease;
}

/* Lightbox theme icon in active state - same as main toggle */
.lightbox-dark-mode-active .lightbox-dark-mode-toggle .theme-icon {
    color: var(--primary-color) !important;
}

/* Lightbox dark mode toggle states - exactly like main toggle */
.preview-lightbox .lightbox-content.lightbox-dark-mode-active .lightbox-dark-mode-toggle .toggle-track,
.lightbox-dark-mode-active .lightbox-dark-mode-toggle .toggle-track {
    background: var(--primary-color) !important;
    border-color: var(--primary-color) !important;
}

.preview-lightbox .lightbox-content.lightbox-dark-mode-active .lightbox-dark-mode-toggle .toggle-thumb,
.lightbox-dark-mode-active .lightbox-dark-mode-toggle .toggle-thumb {
    transform: translateX(14px) !important;
    background: white !important;
    border: 1px solid rgba(255, 255, 255, 0.2) !important;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1) !important;
}

/* Lightbox toggle hover states - same as main toggle */
.lightbox-dark-mode-toggle .toggle-track:hover {
    background: #d1d5db;
    box-shadow: 0 0 0 3px rgba(var(--primary-color-rgb), 0.1);
}

.lightbox-dark-mode-toggle .toggle-track:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(var(--primary-color-rgb), 0.2);
}

.lightbox-dark-mode-toggle .toggle-track:hover .toggle-thumb {
    transform: scale(1.05);
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.2), 0 2px 4px rgba(0, 0, 0, 0.15);
}

.lightbox-dark-mode-active .lightbox-dark-mode-toggle .toggle-track:hover .toggle-thumb {
    transform: translateX(14px) scale(1.05);
}

.preview-lightbox .lightbox-content.lightbox-dark-mode-active .lightbox-dark-mode-toggle .toggle-track:hover {
    background: var(--primary-color-hover) !important;
    box-shadow: 0 0 0 3px rgba(var(--primary-color-rgb), 0.2) !important;
}

/* Override the old lightbox theme toggle light mode styling */

.lightbox-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--title-color);
    margin: 0;
}

.lightbox-close {
    background: none;
    border: none;
    padding: 0.5rem;
    border-radius: 6px;
    cursor: pointer;
    color: var(--text-color);
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-close:hover {
    background: var(--hover-bg);
    color: var(--primary-color);
}

.lightbox-close svg {
    width: 20px;
    height: 20px;
}

.lightbox-body {
    padding: 1.5rem;
    overflow-y: auto;
    flex: 1;
}

/* Minimal Color Cards */
.color-card-minimal {
    position: relative;
    height: 80px;
    border-radius: 0;
    cursor: pointer;
    transition: box-shadow 0.2s ease;
    border: none;
    border-right: 1px solid rgba(255, 255, 255, 0.2);
    overflow: hidden;
    display: none;
    align-items: flex-end;
    justify-content: flex-start;
    padding: 0.75rem;
}


/* Last card gets bottom rounded corners and no right border */
.color-card-minimal:last-child {
    border-bottom-left-radius: 12px;
    border-bottom-right-radius: 12px;
    border-right: none;
}

.minimal-level-indicator {
    font-size: 0.75rem;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
}

.color-card-minimal:hover .minimal-level-indicator {
    opacity: 1;
}

/* Copy icon for minimal cards */
.minimal-copy-icon {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    width: 24px;
    height: 24px;
    opacity: 0;
    transition: opacity 0.2s ease;
    pointer-events: none;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
}

.minimal-copy-icon .value-copy-icon {
    width: 16px;
    height: 16px;
}

.color-card-minimal:hover .minimal-copy-icon {
    opacity: 1;
}

/* ===== COLOR PICKER ENHANCEMENTS ===== */

/* Main input group with color picker */
.input-group {
    position: relative;
    display: flex;
    gap: 0.75rem;
    align-items: center;
    margin-bottom: 1.5rem;
}

/* Duplicate .color-input rule removed - consolidated with main rule above */

.main-color-clear {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    padding: 0.25rem;
    cursor: pointer;
    border-radius: 4px;
    color: var(--text-secondary);
    transition: all 0.2s ease;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.main-color-clear:hover {
    background: var(--hover-bg);
    color: var(--text-color);
}

.main-color-clear svg {
    width: 16px;
    height: 16px;
}

.color-picker-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 6px;
    position: relative;
    height: 44px;
    box-sizing: border-box;
}

/* Small color picker (inline controls) */
.color-picker-small {
    width: 32px;
    height: 32px;
    border-radius: var(--border-radius-sm, 6px);
}

.color-picker::-webkit-color-swatch-wrapper {
    padding: 0;
    border: none;
    border-radius: 6px;
}

.color-picker::-webkit-color-swatch {
    border: none;
    border-radius: 6px;
}

.color-picker::-moz-color-swatch {
    border: none;
    border-radius: 6px;
}

.color-picker-text {
    width: 80px;
    padding: 0.5rem;
    border: none;
    background: transparent;
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 0.875rem;
    color: var(--text-color);
    text-align: center;
}

.color-picker-text:focus {
    outline: none;
    background: var(--hover-bg);
    border-radius: 4px;
}

.color-picker-clear {
    background: none;
    border: none;
    padding: 0.25rem;
    cursor: pointer;
    border-radius: 4px;
    color: var(--text-secondary);
    transition: all 0.2s ease;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.color-picker-clear:hover {
    background: var(--hover-bg);
    color: var(--text-color);
}

.color-picker-clear svg {
    width: 14px;
    height: 14px;
}

/* Sticky header color picker */
.sticky-color-picker-group {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 6px;
    padding: 0.125rem;
    height: 31.5px;
    box-sizing: border-box;
    transition: all 0.2s ease;
}

.sticky-color-picker-group:hover {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(var(--primary-color-rgb), 0.1);
}

.sticky-color-input {
    width: 24px;
    height: 24px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    background: none;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
}

.sticky-color-input::-webkit-color-swatch-wrapper {
    padding: 0;
    border: none;
    border-radius: 4px;
}

.sticky-color-input::-webkit-color-swatch {
    border: none;
    border-radius: 4px;
}

.sticky-color-input::-moz-color-swatch {
    border: none;
    border-radius: 4px;
}

.sticky-color-picker-text {
    width: 60px;
    padding: 0.25rem;
    border: none;
    background: transparent;
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 0.75rem;
    color: var(--text-color);
    text-align: center;
}

.sticky-color-picker-text:focus {
    outline: none;
    background: var(--hover-bg);
    border-radius: 3px;
}

.sticky-color-clear {
    background: none;
    border: none;
    padding: 0.125rem;
    cursor: pointer;
    border-radius: 3px;
    color: var(--text-secondary);
    transition: all 0.2s ease;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sticky-color-clear:hover {
    background: var(--hover-bg);
    color: var(--text-color);
}

.sticky-color-clear svg {
    width: 12px;
    height: 12px;
}

/* Dark theme adjustments for minimal cards */
.dark-theme .minimal-level-indicator {
    background: rgba(0, 0, 0, 0.3);
}

/* Minimal Bottom Info Row */
.minimal-bottom-info {
    position: absolute;
    bottom: 6px;
    left: 6px;
    right: 6px;
    display: flex;
    align-items: center;
    gap: 6px;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    font-size: 0.75rem;
    font-weight: 600;
}

.color-card-minimal:hover .minimal-bottom-info {
    opacity: 1;
}

.minimal-hex-value {
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
    font-size: 0.75rem;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    height: 1.5rem;
    display: flex;
    align-items: center;
    box-sizing: border-box;
}

.minimal-accessibility-full {
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    font-size: 0.75rem;
    height: 1.5rem;
    box-sizing: border-box;
}

.minimal-access-group {
    display: flex;
    align-items: center;
    gap: 3px;
}

.minimal-score-circle {
    min-width: 18px;
    height: 14px;
    border-radius: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0 3px;
    gap: 4px;
}

.minimal-score-circle.black-circle {
    background: #000000;
    color: #ffffff;
}

.minimal-score-circle.white-circle {
    background: #ffffff;
    color: #000000;
    border: 1px solid rgba(0, 0, 0, 0.2);
}

/* Remove background for minimal-tests inside white-circle */
.minimal-score-circle.white-circle .minimal-tests {
    background: none !important;
    background-color: transparent !important;
    color: #000000 !important;
}

.minimal-tests {
    display: flex;
    flex-direction: row;
    gap: 2px;
    position: relative;
    top: 1px;
}

.minimal-test {
    font-size: 0.75rem;
    font-weight: 700;
    line-height: 1;
}

.minimal-score-number {
    line-height: 0;
}

.minimal-test.pass {
    color: #22c55e;
}

.minimal-test.fail {
    color: #ef4444;
}

/* Hide full details in minimal view */
body.minimal-view .color-card-full {
    display: none;
}

body.minimal-view .color-card-minimal {
    display: flex;
}

.config-label {
    font-weight: 500;
    color: var(--label-color);
    margin-bottom: 0.5rem;
}

/* Modern Segmented Control */
.segmented-control {
    position: relative;
    display: flex;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 12px;
    padding: 4px;
    overflow: hidden;
    width: fit-content;
}

.segment-input {
    position: absolute;
    opacity: 0;
    width: 1px;
    height: 1px;
    margin: 0;
    padding: 0;
    border: 0;
    cursor: pointer;
    /* Don't use clip to maintain tab accessibility */
}

.segment-input:focus {
    outline: none;
}

.segment-label {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.25s ease;
    border-radius: 8px;
    white-space: nowrap;
    min-width: 70px;
    text-align: center;
    z-index: 1;
}

.segment-label:hover {
    color: var(--text-color);
    background: rgba(var(--primary-color-rgb), 0.05);
}

.segment-input:checked + .segment-label {
    color: white;
    font-weight: 600;
    background-color: var(--primary-color);
    /* left: 1px; */
}

/* Keyboard navigation for segmented controls */
.segment-input:focus + .segment-label {
    outline: 2px solid var(--primary-color) !important;
    outline-offset: 4px !important;
    z-index: 10 !important;
    position: relative !important;
}

.segment-input:focus-visible + .segment-label {
    outline: 2px solid var(--primary-color) !important;
    outline-offset: 4px !important;
    z-index: 10 !important;
}

.segment-indicator {
    position: absolute;
    top: 4px;
    left: 2px;
    height: calc(100% - 8px);
    background: var(--primary-color);
    border-radius: 8px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 0;
    box-shadow: 0 2px 8px rgba(var(--primary-color-rgb), 0.3);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .segmented-control {
        flex-wrap: wrap;
        gap: 4px;
    }
    
    .segment-label {
        min-width: 60px;
        padding: 0.4rem 0.8rem;
        font-size: 0.8rem;
    }
}

/* Future-ready: support for more segments */
.segmented-control:has(.segment-input:nth-of-type(6)) .segment-label {
    min-width: 65px;
    padding: 0.45rem 0.9rem;
}

.segmented-control:has(.segment-input:nth-of-type(7)) .segment-label {
    min-width: 60px;
    padding: 0.4rem 0.8rem;
}

/* Palette Section */
.palette-section {
    margin-bottom: 3rem;
}

.palette-container {
    position: relative;
    min-height: 400px;
}

/* Loading & Error States */
.loading-state,
.error-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
    text-align: center;
    background: var(--card-bg);
    border-radius: 16px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.error-icon {
    margin-bottom: 1rem;
    display: flex;
    justify-content: center;
}

.error-icon svg {
    width: 48px;
    height: 48px;
    color: #ef4444;
}

.error-message {
    color: var(--error-color);
    font-weight: 500;
    font-size: 1.125rem;
}

/* Palette Grid */
.palette-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.palette-grid-dynamic {
    display: grid;
    gap: 1.5rem;
    margin-top: 2rem;
    width: 100%;
}

/* Force specific grid layouts with classes - HIGHEST PRIORITY */
.palette-grid-dynamic.columns-3,
.palette-grid-dynamic.palette-grid-dynamic.columns-3 {
    grid-template-columns: repeat(3, 1fr) !important;
    gap: 2rem !important;
    margin: 2rem 0 0 !important;
}

.palette-grid-dynamic.columns-2,
.palette-grid-dynamic.palette-grid-dynamic.columns-2 {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 2rem !important;
    margin: 2rem 0 0 !important;
}

.palette-grid-dynamic.columns-1,
.palette-grid-dynamic.palette-grid-dynamic.columns-1 {
    grid-template-columns: 1fr !important;
    margin: 2rem 0 0 !important;
}

/* Removed :has() selectors to avoid conflicts - using class-based approach only */

@media (max-width: 1200px) and (min-width: 769px) {
    /* For tablets: reduce gap slightly */
    .palette-grid-dynamic.columns-3,
    .palette-grid-dynamic.columns-2 {
        gap: 1.5rem !important;
    }
}

@media (min-width: 1201px) {
    /* Large screens: increase gap */
    .palette-grid-dynamic.columns-3,
    .palette-grid-dynamic.columns-2 {
        gap: 2.5rem !important;
    }
}

/* Extra large screens */
@media (min-width: 1600px) {
    .palette-grid-dynamic.columns-3,
    .palette-grid-dynamic.columns-2 {
        gap: 3rem !important;
    }
}

@media (max-width: 768px) {
    .palette-grid-dynamic.columns-3,
    .palette-grid-dynamic.columns-2,
    .palette-grid-dynamic.columns-1 {
        grid-template-columns: 1fr !important;
        gap: 1.5rem;
        max-width: 100% !important;
    }
}

.palette-grid-three {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

@media (max-width: 1200px) {
    .palette-grid-three {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .palette-grid-three {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

.palette-grid-four {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

@media (max-width: 1400px) {
    .palette-grid-four {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .palette-grid-four {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

.palette-column {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.palette-column:hover {
    box-shadow: var(--shadow-md);
}

.column-header {
    padding: 1.5rem;
    background: var(--column-header-bg);
    border-bottom: 1px solid var(--border-color);
}

.column-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--title-color);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.column-subtitle {
    color: var(--subtitle-color);
    font-size: 0.95rem;
    font-weight: 500;
}

.accessibility-badge {
    background: var(--success-color);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.accessibility-indicator {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 1rem;
    text-align: center;
}

.accessibility-indicator.accessible {
    background: #047857 !important;
    color: #ffffff !important;
    border: none !important;
}

.accessibility-indicator.not-accessible {
    background: #dc2626 !important;
    color: #ffffff !important;
    border: none !important;
}

.accessibility-indicator.dark-mode {
    background: var(--primary-color);
    color: white;
}

.accessibility-summary {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    margin-top: 0.75rem;
    padding: 0.75rem;
    background: var(--column-header-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.base-accessibility,
.scale-accessibility {
    font-size: 0.75rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.base-accessibility.accessible::before,
.scale-accessibility.accessible::before {
    content: "✓";
    color: var(--success-color);
    font-weight: 700;
}

.base-accessibility.not-accessible::before,
.scale-accessibility.not-accessible::before {
    content: "✗";
    color: var(--error-color);
    font-weight: 700;
}

.base-accessibility.partial::before,
.scale-accessibility.partial::before {
    content: "⚠";
    color: var(--warning-color);
    font-weight: 700;
}

/* Color Cards */
.color-cards {
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0;
}

/* Full Color Cards - New Design */
.color-card-full {
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    min-height: 120px;
    display: flex;
    align-items: stretch;
}

.color-card-full:last-child {
    border-bottom: none;
}

.card-content {
    width: 100%;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 0.5rem;
}

.card-top-section {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    justify-content: space-between;
}

.level-header {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    flex-shrink: 0;
}

.level-number {
    font-size: 1.5rem;
    font-weight: 700;
    opacity: 0.9;
}

.color-values-grid {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    flex: 0.55;
}

.value-row {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.value-data-pill {
    background-color: rgba(0, 0, 0, 0.1);
    color: inherit;
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    font-size: 0.7rem;
    font-weight: 500;
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', monospace;
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
}

.value-text {
    flex: 1;
}

.value-copy-btn {
    background: transparent;
    border: none;
    padding: 0.25rem;
    cursor: pointer;
    transition: all 0.15s ease;
    color: inherit;
    opacity: 0.5;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
    width: 20px;
    height: 20px;
}

.value-copy-btn:hover {
    opacity: 0.8;
    background: var(--copy-btn-hover-bg, rgba(0, 0, 0, 0.08));
    transform: scale(1.1);
}

.value-copy-btn:active {
    transform: scale(0.85);
}

.value-copy-icon {
    width: 10px;
    height: 10px;
    transition: all 0.15s ease;
    color: inherit;
    fill: currentColor;
}

/* Success state for copy button */
.value-copy-btn.copied {
    opacity: 1;
    background: rgba(16, 185, 129, 0.15);
    color: #10b981;
}

.value-copy-btn.copied .value-copy-icon {
    transform: scale(1.3);
}

.value-label-pill {
    background-color: rgba(0, 0, 0, 0.15);
    color: inherit;
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    font-size: 0.7rem;
    font-weight: 600;
    min-width: 40px;
    text-align: center;
}


/* Accessibility section matching the image layout */
.accessibility-section {
    margin-top: 0.5rem;
}

.accessibility-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.score-circle-large {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.6rem;
    font-weight: 700;
    flex-shrink: 0;
    line-height: 0;
    /* padding: 4px; */
}

.score-circle-large.white-circle {
    background-color: white;
    color: black;
    border: 1px solid rgba(0, 0, 0, 0.2);
}

.score-circle-large.black-circle {
    background-color: black;
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.score-number {
    font-family: 'Monaco', 'Consolas', monospace;
    /* padding: 4px; */
}

.test-results-column {
    display: flex;
    flex-direction: row;
    gap: 0.25rem;
    align-items: center;
}

.test-line {
    display: flex;
    align-items: center;
    /* justify-content: space-between; */
    /* min-width: 80px; */
    font-size: 0.6rem;
    gap: 0.5rem;
}

.test-line .test-label {
    font-weight: 600;
    color: inherit;
}

.test-line .test-icon {
    font-weight: 700;
    font-size: 0.9rem;
    /* margin-left: 0.5rem; */
}

.test-line.pass .test-icon {
    color: #22c55e;
}

.test-line.fail .test-icon {
    color: #ef4444;
}

/* New Color Cards */
.color-card-new {
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.color-card-new:last-child {
    border-bottom: none;
}

.color-card-new:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.color-sample-new {
    height: 80px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.sample-content {
    text-align: center;
}

.color-level-new {
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
    background: rgba(0, 0, 0, 0.3);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    backdrop-filter: blur(4px);
}

.color-info-new {
    padding: 1rem;
    background: var(--card-bg);
}

.color-values-new {
    margin-bottom: 1rem;
}

.color-value-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.25rem;
    font-size: 0.85rem;
}

.color-value-item .value-label {
    font-weight: 600;
    min-width: 40px;
    color: var(--label-color);
}

.color-value-item .value-data {
    font-family: 'Monaco', 'Menlo', monospace;
    color: var(--text-color);
}

.accessibility-info-new {
    display: flex;
    gap: 1rem;
}

.accessibility-tests {
    flex: 1;
}

.test-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.25rem;
}

.test-subtext {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    margin-left: 2rem;
}

.test-icon {
    /* width: 24px; */
    /* height: 24px; */
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.7rem;
}

.test-icon.black-icon {
    background: #000000;
    color: #ffffff;
}

.test-icon.white-icon {
    background: #ffffff;
    color: #000000;
    border: 1px solid var(--border-color);
}

.test-label {
    font-size: 0.6rem;
    font-weight: 500;
    color: var(--text-color);
}

.test-result {
    font-weight: 600;
    font-size: 0.75rem;
}

.test-result.pass {
    color: var(--success-color);
}

.test-result.fail {
    color: var(--error-color);
}

/* Enhanced Color Cards (keep for backward compatibility) */
.color-card-enhanced {
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.color-card-enhanced:last-child {
    border-bottom: none;
}

.color-card-enhanced:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.color-display {
    position: relative;
    min-height: 180px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    color: white;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.color-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.level-badge {
    background: rgba(0, 0, 0, 0.3);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    backdrop-filter: blur(4px);
}

.hex-value {
    background: rgba(0, 0, 0, 0.3);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 6px;
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 0.875rem;
    font-weight: 500;
    backdrop-filter: blur(4px);
}

.color-values {
    margin-bottom: 1rem;
}

.color-value {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.25rem;
    font-size: 0.8rem;
}

.value-label {
    background: rgba(0, 0, 0, 0.2);
    padding: 0.125rem 0.5rem;
    border-radius: 4px;
    font-weight: 600;
    min-width: 30px;
    text-align: center;
    backdrop-filter: blur(4px);
}

.value-data {
    font-family: 'Monaco', 'Menlo', monospace;
    background: rgba(0, 0, 0, 0.15);
    padding: 0.125rem 0.5rem;
    border-radius: 4px;
    backdrop-filter: blur(4px);
}

.color-name-enhanced {
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: 1rem;
    background: rgba(0, 0, 0, 0.2);
    padding: 0.5rem;
    border-radius: 6px;
    backdrop-filter: blur(4px);
}

.accessibility-section {
    display: flex;
    gap: 1rem;
    margin-top: auto;
    justify-content: flex-end;
}

.accessibility-test {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex: 1;
}

.accessibility-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.875rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(4px);
}

.accessibility-labels {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.accessibility-label {
    font-size: 0.75rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.accessibility-label.pass {
    color: #22c55e;
}

.accessibility-label.fail {
    color: #ef4444;
}

/* Legacy color cards for backward compatibility */
.color-card {
    display: flex;
    align-items: center;
    padding: 0;
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.color-card:last-child {
    border-bottom: none;
}

.color-card:hover {
    background: var(--hover-bg);
    transform: translateX(4px);
}

.color-sample {
    width: 80px;
    height: 60px;
    flex-shrink: 0;
    position: relative;
    border-right: 1px solid var(--border-color);
}

.color-info {
    flex: 1;
    padding: 1rem 1.5rem;
}

.color-level {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--label-color);
    margin-bottom: 0.25rem;
}

.color-hex {
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.color-name {
    font-size: 0.875rem;
    color: var(--subtitle-color);
    font-style: italic;
}

.accessibility-info {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    margin-top: 0.5rem;
}

.contrast-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-weight: 500;
}

.contrast-pass {
    background: var(--success-bg);
    color: var(--success-color);
}

.contrast-fail {
    background: var(--error-bg);
    color: var(--error-color);
}

/* Live Preview Section */
.live-preview-section {
    border-radius: 16px;
    padding: 2rem;
    margin-bottom: 3rem;
}

.preview-container {
    max-width: 100%;
}

.preview-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--title-color);
    margin-bottom: 0.5rem;
}

.preview-subtitle {
    color: var(--subtitle-color);
    margin-bottom: 2rem;
    font-size: 1rem;
}

.preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.preview-section {
    padding: 1.5rem;
    background: var(--preview-section-bg, var(--primary-bg));
    border: 1px solid var(--preview-border, var(--border-color));
    border-radius: 12px;
    transition: all 0.3s ease;
}

.section-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--preview-heading, var(--title-color));
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--preview-accent, var(--primary-color));
}

.component-group {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Preview Buttons */
.preview-btn {
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.95rem;
}

.btn-primary {
    background: var(--preview-primary, var(--primary-color));
    color: var(--preview-primary-text, white);
}

.btn-primary:hover {
    background: var(--preview-primary-hover, var(--primary-color-hover));
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--preview-secondary, #6b7280);
    color: white;
}

.btn-secondary:hover {
    background: var(--preview-secondary-hover, #4b5563);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--preview-primary, var(--primary-color));
    border: 2px solid var(--preview-primary, var(--primary-color));
}

.btn-outline:hover {
    background: var(--preview-primary, var(--primary-color));
    color: white;
}

.btn-ghost {
    background: transparent;
    color: var(--preview-ghost-color, var(--text-color));
    border: none;
}

.btn-ghost:hover {
    color: var(--preview-nav-link-hover, var(--primary-color));
    background: var(--preview-nav-link-hover-bg, var(--hover-bg));
}

/* Preview Inputs */
.preview-input,
.preview-select {
    padding: 0.75rem 1rem;
    border: 2px solid var(--preview-input-border, var(--input-border));
    border-radius: 6px;
    background: var(--preview-input-bg, var(--input-bg));
    color: var(--preview-text, var(--text-color));
    font-size: 0.95rem;
    transition: all 0.2s ease;
}

.preview-input:focus,
.preview-select:focus {
    outline: none;
    border-color: var(--focus-color, var(--preview-primary, var(--primary-color)));
    box-shadow: 0 0 0 3px var(--focus-ring-color, var(--preview-primary-alpha, var(--primary-color-alpha)));
}

.preview-input.focused {
    border-color: var(--focus-color, var(--preview-primary, var(--primary-color)));
    box-shadow: 0 0 0 3px var(--focus-ring-color, var(--preview-primary-alpha, var(--primary-color-alpha)));
}

.preview-input.error {
    border-color: var(--preview-error, var(--error-color));
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

/* Preview Cards */
.preview-card {
    background: var(--preview-card-bg, var(--card-bg));
    border: 1px solid var(--preview-card-border, var(--border-color));
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--preview-heading, var(--title-color));
    margin-bottom: 0.5rem;
}

.card-text {
    color: var(--preview-card-text, var(--text-color));
    margin-bottom: 1rem;
    line-height: 1.5;
}

.card-action {
    background: var(--preview-primary, var(--primary-color));
    color: var(--preview-primary-text, white);
}

/* Preview Alerts */
.preview-alert {
    padding: 1rem 1.25rem;
    border-radius: 8px;
    border-left: 4px solid;
    font-size: 0.95rem;
}

.alert-success {
    background: var(--preview-success-bg, var(--success-bg));
    color: var(--preview-success-color, var(--success-color));
    border-left-color: var(--preview-success-color, var(--success-color));
}

.alert-warning {
    background: var(--preview-warning-bg, var(--warning-bg));
    color: var(--preview-warning-color, var(--warning-color));
    border-left-color: var(--preview-warning-color, var(--warning-color));
}

.alert-error {
    background: var(--preview-error-bg, var(--error-bg));
    color: var(--preview-error-color, var(--error-color));
    border-left-color: var(--preview-error-color, var(--error-color));
}

/* Preview Typography */
.preview-heading-1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--preview-heading, var(--title-color));
    margin-bottom: 0.5rem;
}

.preview-heading-2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--preview-heading, var(--title-color));
    margin-bottom: 0.5rem;
}

.preview-heading-3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--preview-heading, var(--title-color));
    margin-bottom: 0.5rem;
}

.preview-paragraph {
    color: var(--preview-text, var(--text-color));
    line-height: 1.6;
    margin-bottom: 0.75rem;
}

.preview-link {
    color: var(--preview-primary, var(--primary-color));
    text-decoration: underline;
    font-weight: 500;
}

.preview-link:hover {
    font-weight: 700;
}

.preview-muted {
    color: var(--preview-muted, var(--subtitle-color));
    font-size: 0.9rem;
}

/* Preview Navigation */
.preview-nav {
    display: flex;
    gap: 0.5rem;
    background: var(--preview-nav-bg, var(--card-bg));
    padding: 0.5rem;
    border-radius: 8px;
    border: 1px solid var(--preview-nav-border, var(--border-color));
}

.nav-link {
    padding: 0.5rem 1rem;
    color: var(--preview-primary, var(--primary-color));
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.2s ease;
    font-weight: 500;
}

.nav-link:hover {
    color: var(--preview-nav-link-hover, var(--primary-color));
    background: var(--preview-nav-link-hover-bg, var(--hover-bg));
}

.nav-link.active {
    background: var(--preview-primary, var(--primary-color));
    color: var(--preview-primary-text, white);
}

/* Preview Controls */
.preview-controls {
    display: flex;
    gap: 2rem;
    justify-content: center;
    padding: 1.5rem;
    background: var(--preview-controls-bg, var(--column-header-bg));
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

/* Lightbox Dark Mode Styling */
.lightbox-content.lightbox-dark-mode-active {
    background: #0f172a;
    color: #e2e8f0;
}

.lightbox-content.lightbox-dark-mode-active .lightbox-header {
    background: #1e293b;
    border-bottom-color: #334155;
}

.lightbox-content.lightbox-dark-mode-active .lightbox-title {
    color: #f1f5f9;
}

.lightbox-content.lightbox-dark-mode-active .lightbox-subtitle {
    color: #94a3b8;
}

.lightbox-content.lightbox-dark-mode-active .preview-button:hover {
    background: var(--preview-primary-hover, var(--primary-color));
}

.lightbox-content.lightbox-dark-mode-active .preview-button-secondary:hover {
    background: var(--preview-secondary-hover, #4b5563);
}

.lightbox-content.lightbox-dark-mode-active .preview-button-ghost:hover {
    color: var(--preview-nav-link-hover, var(--primary-color));
    background: var(--preview-nav-link-hover-bg, #374151);
}

.lightbox-content.lightbox-dark-mode-active .nav-link:hover {
    color: var(--preview-nav-link-hover, var(--primary-color));
    background: var(--preview-nav-link-hover-bg, var(--hover-bg));
}

.lightbox-content.lightbox-dark-mode-active .preview-card {
    background: var(--preview-card-bg, var(--card-bg));
    border-color: var(--preview-card-border, var(--border-color));
}

.lightbox-content.lightbox-dark-mode-active .preview-input {
    background: var(--preview-input-bg, #1e293b);
    border-color: var(--preview-input-border, #334155);
    color: #e2e8f0;
}
.lightbox-content.lightbox-dark-mode-active .preview-input:focus,
.lightbox-content.lightbox-dark-mode-active .preview-select:focus {
    border-color: var(--focus-color, var(--preview-primary, var(--primary-color)));
    box-shadow: 0 0 0 3px var(--focus-ring-color, var(--preview-primary-alpha, var(--primary-color-alpha)));
}
.lightbox-content.lightbox-dark-mode-active .preview-input.focused {
    border-color: var(--focus-color, var(--preview-primary, var(--primary-color)));
    box-shadow: 0 0 0 3px var(--focus-ring-color, var(--preview-primary-alpha, var(--primary-color-alpha)));
}
.lightbox-content.lightbox-dark-mode-active .preview-input.error {
    border-color: var(--preview-error, #f87171);
    box-shadow: 0 0 0 3px rgba(248, 113, 113, 0.2);
}

.lightbox-content.lightbox-dark-mode-active .preview-section {
    background: var(--preview-section-bg, #0f172a);
}

.lightbox-content.lightbox-dark-mode-active .preview-heading-1,
.lightbox-content.lightbox-dark-mode-active .preview-heading-2,
.lightbox-content.lightbox-dark-mode-active .preview-heading-3 {
    color: var(--preview-heading, var(--title-color));
}

.lightbox-content.lightbox-dark-mode-active .preview-paragraph {
    color: var(--preview-text, var(--text-color));
}

.lightbox-content.lightbox-dark-mode-active .preview-muted {
    color: var(--preview-muted, var(--subtitle-color));
}

.lightbox-content.lightbox-dark-mode-active .preview-nav {
    background: var(--preview-nav-bg, var(--card-bg));
    border-color: var(--preview-nav-border, var(--border-color));
}

/* Fix dark mode toggle label color in lightbox */
.lightbox-content.lightbox-dark-mode-active .toggle-label {
    color: #e2e8f0 !important;
}

.lightbox-content.lightbox-dark-mode-active .lightbox-dark-mode-toggle .toggle-label {
    color: #e2e8f0 !important;
}

/* Lightbox theme toggle styling - light mode: white thumb with blue sun */
.lightbox-dark-mode-toggle .toggle-thumb {
    background: white;
    border: 1px solid var(--border-color);
}

.lightbox-dark-mode-toggle .theme-icon {
    color: var(--primary-color);
    transform: rotate(180deg);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Lightbox theme toggle styling - dark mode: blue thumb with white moon */
.lightbox-content.lightbox-dark-mode-active .lightbox-dark-mode-toggle .toggle-thumb {
    background: var(--primary-color) !important;
    border: 1px solid var(--primary-color) !important;
    transform: translateX(14px);
}

.lightbox-content.lightbox-dark-mode-active .lightbox-dark-mode-toggle .theme-icon {
    color: white !important;
    transform: rotate(0deg);
}

/* Light mode lightbox header (normal state) */
.lightbox-header {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px); /* Safari support */
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

/* Lightbox header styling to match sticky header in dark mode */
.preview-lightbox .lightbox-content.lightbox-dark-mode-active .lightbox-header {
    background: rgba(30, 41, 59, 0.6) !important;
    backdrop-filter: blur(10px) !important;
    border-bottom-color: #475569 !important;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3) !important;
    -webkit-backdrop-filter: blur(10px) !important; /* Safari support */
}

/* Lightbox content border and corners in dark mode */
.lightbox-content.lightbox-dark-mode-active {
    border: 1px solid #e2e8f0 !important;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.8) !important;
}

/* Lightbox close button color in dark mode */
.lightbox-content.lightbox-dark-mode-active .lightbox-close {
    color: #e2e8f0;
    background: rgba(71, 85, 105, 0.1);
}

.lightbox-content.lightbox-dark-mode-active .lightbox-close:hover {
    background: rgba(71, 85, 105, 0.2);
}

/* Additional dark mode styling for lightbox content elements */
.lightbox-content.lightbox-dark-mode-active .preview-button {
    background: var(--preview-primary, var(--primary-color));
    color: white;
    border: none;
}

.lightbox-content.lightbox-dark-mode-active .preview-button-secondary {
    background: var(--preview-secondary, #6b7280);
    color: white;
    border: 1px solid var(--preview-border, #475569);
}

.lightbox-content.lightbox-dark-mode-active .preview-button-ghost {
    background: transparent;
    color: var(--preview-ghost-color, #e2e8f0);
    border: none;
}

.lightbox-content.lightbox-dark-mode-active .section-title {
    color: #f1f5f9;
    border-bottom-color: #475569;
}

.lightbox-content.lightbox-dark-mode-active .preview-section {
    background: var(--preview-section-bg, #0f172a);
    border-color: #334155;
}

/* Remove redundant dark mode toggle styling - using main toggle styles */

.lightbox-content.lightbox-dark-mode-active .lightbox-dark-mode-toggle .theme-icon {
    color: var(--primary-color) !important;
}

/* Header right actions container */
.header-right-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-left: auto; /* Push to right */
}

.header-theme-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.header-preview-group {
    /* Styled by sticky-control-group and sticky-preview-btn classes */
}

/* Keep right actions aligned to right even when scrolled - stay in same position */
.app-header.scrolled .header-right-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-left: auto;
    order: 3;
}

.app-header.scrolled .header-theme-toggle,
.app-header.scrolled .header-preview-group {
    display: flex;
    position: static;
    transform: none;
    right: auto;
    top: auto;
}

.control-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    color: var(--label-color);
    cursor: pointer;
}

.control-checkbox {
    width: 18px;
    height: 18px;
    accent-color: var(--primary-color);
}

/* Responsive Preview */
@media (max-width: 768px) {
    .preview-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .preview-controls {
        flex-direction: column;
        gap: 1rem;
        align-items: center;
    }
    
    .component-group {
        gap: 0.75rem;
    }
}

/* Export Section */
.export-section {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    margin-top: 2rem;
}

.export-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--title-color);
    margin-bottom: 1.5rem;
}

.export-options {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.export-mode-options {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.export-checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-color);
}

.export-checkbox {
    width: 16px;
    height: 16px;
    accent-color: var(--primary-color);
    cursor: pointer;
}

.checkbox-text {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.export-label {
    font-weight: 500;
    color: var(--label-color);
    white-space: nowrap;
}

.export-select {
    flex: 1;
    min-width: 250px;
    padding: 0.75rem 1rem;
    border: 2px solid var(--input-border);
    border-radius: 12px;
    background: var(--input-bg);
    color: var(--text-color);
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.export-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.export-btn {
    padding: 0.75rem 1.5rem;
    border: 2px solid var(--primary-color);
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.export-btn svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.copy-btn {
    background: var(--primary-color);
    color: white;
}

.copy-btn:hover {
    background: var(--primary-color-hover);
    transform: translateY(-1px);
}

.download-btn {
    background: transparent;
    color: var(--primary-color);
}

.download-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-1px);
}

.export-preview {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
}

.export-code {
    background: var(--code-bg);
    color: var(--code-color);
    padding: 1.5rem;
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 0.875rem;
    line-height: 1.6;
    overflow-x: auto;
    white-space: pre;
    margin: 0;
}

/* Footer */
.app-footer {
    background: var(--footer-bg);
    border-top: 1px solid var(--border-color);
    padding: 2rem;
    margin-top: auto;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer-text {
    color: var(--subtitle-color);
    font-size: 0.875rem;
    margin: 0;
}

.footer-text a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.footer-text a:hover {
    text-decoration: underline;
}

.buy-coffee-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: #FFDD00;
    color: #1a1a2e;
    text-decoration: none;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    transition: all 0.2s ease;
    border: none;
}

.buy-coffee-btn:hover {
    background: #FFE55C;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.buy-coffee-btn svg {
    flex-shrink: 0;
}

/* Floating Buy Me Coffee Button */
.floating-coffee-btn {
    position: fixed;
    bottom: 7rem;
    right: 1rem;
    width: 50px;
    height: 50px;
    background: #FFDD00;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
    z-index: 997;
    text-decoration: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
}

.floating-coffee-btn.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.floating-coffee-btn:hover {
    background: #FFE55C;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.floating-coffee-btn img {
    width: 22px;
    height: 22px;
    filter: none;
}

@media (max-width: 768px) {
    .floating-coffee-btn {
        bottom: 4.5rem; /* Above the back-to-top button */
        right: 1rem;
        width: 44px;
        height: 44px;
    }
    
    .floating-coffee-btn img {
        width: 20px;
        height: 20px;
    }
}

@media (max-width: 768px) {
    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
        padding: 0 1rem;
    }
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: 1.5rem;
    right: 1.5rem;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.toast {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0.875rem 1.25rem;
    box-shadow: var(--shadow-lg);
    transform: translateX(400px);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    max-width: 320px;
    font-size: 0.875rem;
    font-weight: 500;
    backdrop-filter: blur(10px);
}

.toast.show {
    transform: translateX(0);
    opacity: 1;
}

.toast.success {
    background: white;
    border-left: 4px solid var(--success-color);
}

.toast.error {
    background: white;
    border-left: 4px solid var(--error-color);
}

.toast.warning {
    background: white;
    border-left: 4px solid var(--warning-color);
}

/* Utility Classes */
.hidden {
    display: none !important;
}

/* Override for animated elements */
.enhanced-algorithm-controls.hidden {
    display: block !important;
    max-height: 0 !important;
    opacity: 0 !important;
    padding: 0 1.5rem !important;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .palette-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .app-main {
        padding: 2rem 1rem;
    }
    
    .header-content {
        padding: 0 1rem;
        flex-direction: column;
        align-items: flex-start;
        justify-content: flex-start;
        gap: 1rem;
        flex-wrap: nowrap;
    }
    
    .header-left-section {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
        width: 100%;
    }
    
    .header-title-and-toggle {
        width: 100%;
        justify-content: space-between;
    }
    
    .header-sticky-controls {
        margin-left: 0;
        gap: 0.75rem;
        flex-wrap: wrap;
    }
    
    .app-header.scrolled .header-left-section {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
    
    .app-header.scrolled .header-sticky-controls {
        margin-left: 0;
        width: 100%;
    }
    
    .sticky-control-group {
        gap: 0.375rem;
    }
    
    .sticky-control-label {
        font-size: 0.8125rem;
    }
    
    .sticky-scale-select {
        min-width: 90px;
        padding: 0.4rem 0.6rem;
        font-size: 0.8125rem;
        padding-right: 2.25rem;
    }
    
    .sticky-color-picker-group {
        height: 31.5px;
        padding: 0.125rem;
    }
    
    .sticky-preview-btn {
        height: 31.5px;
        padding: 0.4rem 0.6rem;
        font-size: 0.75rem;
        gap: 0.25rem;
    }
    
    .sticky-preview-btn svg {
        width: 14px;
        height: 14px;
    }
    
    .sticky-preview-btn span {
        font-size: 0.75rem;
    }
    
    .lightbox-content {
        max-width: 95vw;
        max-height: 95vh;
        margin: 1rem;
    }
    
    .lightbox-header {
        padding: 1rem;
        align-items: flex-start;
    }
    
    .lightbox-header-left {
        gap: 0.75rem;
    }
    
    .lightbox-controls {
        gap: 0.75rem;
        align-items: flex-start;
    }
    
    .lightbox-dark-mode-toggle {
        gap: 0.5rem;
    }
    
    .lightbox-body {
        padding: 1rem;
    }
    
    .app-title {
        font-size: 2rem;
    }
    
    .app-header.scrolled .app-title {
        font-size: 1.25rem;
        color: var(--primary-color);
    }
    
    .header-theme-toggle {
        align-self: center;
    }
    
    .input-container {
        padding: 1.5rem;
    }
    
    .combined-controls-row {
        flex-direction: column;
        gap: 1.5rem;
        align-items: stretch;
        min-height: unset;
    }
    
    .combined-controls-row .color-picker-container .color-picker-group {
        height: auto;
        min-height: 48px;
    }
    
    .combined-controls-row .scale-config {
        min-width: unset;
    }
    
    .combined-controls-row .scale-config .scale-controls-row {
        flex-direction: column;
        height: auto;
        gap: 1rem;
        align-items: stretch;
    }
    
    .combined-controls-row .scale-config .segmented-control {
        height: auto;
        min-height: 48px;
    }
    
    .combined-controls-row .accessibility-mode-config .accessibility-controls-row {
        flex-direction: column;
        height: auto;
        gap: 1rem;
        align-items: stretch;
    }
    
    .combined-controls-row .accessibility-mode-config .segmented-control {
        height: auto;
        min-height: 48px;
    }
    
    .combined-controls-row .view-mode-toggle {
        height: auto;
        min-height: 48px;
        justify-content: flex-start;
    }
    
    .scale-controls-row {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }
    
    .view-mode-toggle {
        align-self: flex-start;
    }
    
    .scale-select {
        min-width: unset;
    }
    
    .export-mode-options {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .export-select {
        min-width: unset;
    }
    
    .export-actions {
        flex-direction: column;
    }
    
    .toast-container {
        top: 1rem;
        right: 1rem;
        left: 1rem;
    }
    
    .toast {
        max-width: none;
    }
    
    /* Enhanced color cards responsive */
    .color-display {
        min-height: 160px;
        padding: 1rem;
    }
    
    .accessibility-section {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .accessibility-test {
        gap: 0.5rem;
    }
    
    .accessibility-icon {
        width: 35px;
        height: 35px;
        font-size: 0.75rem;
    }
}

@media (max-width: 480px) {
    .app-title {
        font-size: 1.75rem;
        flex-direction: row;
        gap: 0.5rem;
    }
    
    .app-header.scrolled .app-title {
        font-size: 1.1rem;
        color: var(--primary-color);
    }
    
    .header-content {
        flex-direction: row;
        justify-content: space-between;
    }
    
    .header-theme-toggle {
        align-self: center;
    }
    
    /* Legacy color cards */
    .color-card {
        flex-direction: column;
        align-items: stretch;
    }
    
    .color-sample {
        width: 100%;
        height: 40px;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    
    .color-info {
        padding: 1rem;
    }
    
    /* Enhanced color cards */
    .color-display {
        min-height: 140px;
        padding: 0.875rem;
    }
    
    .color-header {
        margin-bottom: 0.75rem;
    }
    
    .level-badge, .hex-value {
        font-size: 0.75rem;
        padding: 0.2rem 0.6rem;
    }
    
    .color-values {
        margin-bottom: 0.75rem;
    }
    
    .color-value {
        font-size: 0.75rem;
    }
    
    .color-name-enhanced {
        font-size: 0.85rem;
        margin-bottom: 0.75rem;
        padding: 0.375rem;
    }
    
    .accessibility-section {
        gap: 0.5rem;
    }
    
    .accessibility-icon {
        width: 30px;
        height: 30px;
        font-size: 0.7rem;
    }
    
    .accessibility-label {
        font-size: 0.7rem;
    }
}

/* High Contrast Support */
@media (prefers-contrast: high) {
    :root {
        --border-color: #000000;
        --primary-color: #0000ff;
        --text-color: #000000;
        --bg-color: #ffffff;
    }
    
    .dark-theme {
        --border-color: #ffffff;
        --primary-color: #00ffff;
        --text-color: #ffffff;
        --bg-color: #000000;
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .loading-spinner {
        animation: none;
        border: 4px solid var(--border-color);
        border-top: 4px solid var(--primary-color);
    }
}