/* ========================================
   CUSTOMIZATION
   ======================================== */

#customizationOverlay {
    position: fixed;
    inset: 0;
    background: var(--overlay-bg);
    backdrop-filter: blur(var(--overlay-blur));
    z-index: 10000;
    display: none;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity var(--transition-speed) ease;
    border-radius: 0;
}
#customizationOverlay.active {
    display: flex;
    opacity: 1;
}

.customization-container {
    width: 92%;
    max-width: 1400px;
    height: 89vh;
    max-height: 78vh;   
    background: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow-modal);
    backdrop-filter: blur(var(--backdrop-blur));
    -webkit-backdrop-filter: blur(var(--backdrop-blur)) ;  
    display: flex;
    overflow: hidden;
    position: relative;
}

/* Responsive adjustments to avoid tiny containers on narrow screens */
@media (max-width: 900px) {
    .customization-container { width: 96%; max-width: 960px; min-width: 0; height: 88vh; max-height: 88vh; }
    .custom-sidebar { width: 220px; }
    .highlight-options-grid { grid-auto-columns: minmax(160px, 240px); }
    .hl-option { min-width: 160px; }
}

@media (max-width: 560px) {
    .customization-container { width: 100%; max-width: 100%; border-radius: 0; height: 100vh; max-height: 100vh; }
    .custom-sidebar { display: none; }
    .custom-content { padding: 16px; }
    .highlight-options-grid { grid-auto-columns: minmax(140px, 220px); grid-template-rows: repeat(4, minmax(44px, 1fr)); }
    .hl-option { min-width: 140px; }
}

.custom-sidebar {
    width: 280px;
    background: var(--highlight-color);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--accent-color) var(--card-bg);
    min-width: 220px;
} 

.sidebar-header {
    padding: var(--spacing-xl) var(--spacing-lg) var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}
.sidebar-header h2 {
    font-size: var(--font-size-xl);
    color: var(--accent-color);
    margin: 0;
    text-align: left;
}
.sidebar-nav {
    padding: 1rem 0;
}
.sidebar-item {
    padding: 1rem 1.5rem;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-color);
    border-left: 3px solid transparent;
    border-radius: 0;
}
.sidebar-item i {
    font-size: var(--font-size-lg);
    width: 24px;
    color: var(--accent-color);
}
.sidebar-item:hover {
    background: var(--card-bg);
}
.sidebar-item.active {
    background: var(--card-bg);
    border-left-color: var(--accent-color);
    font-weight: 600;
    border-radius: 0;
}

.custom-content {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--accent-color) var(--highlight-color);
}

.custom-section {
    display: none;
}
.custom-section.active {
    display: block;
    animation: fadeIn 0.3s ease;
}
.custom-section h3 {
    font-size: var(--font-size-2xl);
    color: var(--accent-color);
    margin-bottom: 1.5rem;
    text-align: left;
}

/* Theme Filters */
.section-header-custom {
    margin-bottom: 1.5rem;
}
.section-header-custom h3 {
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.theme-section-hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 1.25rem;
    align-items: end;
    padding: 1.35rem;
    border: 1px solid color-mix(in srgb, var(--border-color) 72%, transparent);
    border-radius: calc(var(--border-radius) + 4px);
    background:
        linear-gradient(135deg, color-mix(in srgb, var(--card-bg) 92%, transparent), color-mix(in srgb, var(--highlight-color) 92%, transparent)),
        color-mix(in srgb, var(--accent-color) 3%, transparent);
    box-shadow: var(--box-shadow-sm);
}
.theme-kicker {
    display: inline-flex;
    align-items: center;
    padding: 0.32rem 0.72rem;
    margin-bottom: 0.75rem;
    border-radius: var(--border-radius-pill);
    background: color-mix(in srgb, var(--accent-color) 14%, transparent);
    color: var(--accent-color);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}
.theme-hero-copy p {
    margin: 0.65rem 0 0;
    max-width: 40rem;
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    line-height: 1.6;
}
.theme-hero-stats {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
    min-width: min(320px, 100%);
}
.theme-hero-stat {
    min-width: 0;
    padding: 0.85rem 1rem;
    border-radius: var(--border-radius);
    border: 1px solid color-mix(in srgb, var(--border-color) 72%, transparent);
    background: color-mix(in srgb, var(--card-bg) 82%, transparent);
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}
.theme-hero-stat strong {
    font-size: clamp(1.15rem, 2vw, 1.45rem);
    color: var(--text-color);
    line-height: 1;
}
.theme-hero-stat span {
    color: var(--text-muted);
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.theme-filters {
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
    margin-bottom: 0.9rem;
}
.theme-search-shell {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.85rem 1rem;
    border: 1px solid color-mix(in srgb, var(--border-color) 72%, transparent);
    border-radius: var(--border-radius);
    background: color-mix(in srgb, var(--card-bg) 88%, transparent);
}
.theme-search-shell i {
    color: var(--accent-color);
    font-size: 0.95rem;
}
.theme-search-input {
    flex: 1;
    min-width: 0;
    padding: 0;
    border: none;
    background: transparent;
    color: var(--text-color);
    font-size: var(--font-size-sm);
}
.theme-search-input:focus {
    outline: none;
}
.theme-search-input::placeholder {
    color: var(--text-muted);
}
.theme-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    max-height: 7.75rem;
    overflow: auto;
    padding-right: 0.15rem;
}
.theme-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    font: inherit;
    background: color-mix(in srgb, var(--highlight-color) 78%, var(--card-bg) 22%);
    border: 1px solid color-mix(in srgb, var(--border-color) 70%, transparent);
    padding: 0.45rem 0.8rem;
    border-radius: var(--border-radius-pill);
    cursor: pointer;
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    transition: all var(--transition-speed) ease;
}
.theme-tag-count {
    min-width: 1.35rem;
    height: 1.35rem;
    display: inline-grid;
    place-items: center;
    padding: 0 0.3rem;
    border-radius: var(--border-radius-pill);
    background: color-mix(in srgb, var(--accent-color) 10%, transparent);
    color: var(--accent-color);
    font-size: 0.72rem;
    font-weight: var(--font-weight-semibold);
}
.theme-tag:hover, .theme-tag.active {
    background: var(--accent-color);
    color: var(--text-on-accent);
    border-color: var(--accent-color);
}
.theme-tag.active .theme-tag-count,
.theme-tag:hover .theme-tag-count {
    background: color-mix(in srgb, var(--text-on-accent) 16%, transparent);
    color: inherit;
}
.theme-results-meta {
    margin: 0 0 1rem;
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

/* Theme Cards */
.theme-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.1rem;
    margin-bottom: 2rem;
}

/* Prevent flex children from overflowing and allow proper shrinking */
.custom-content, .custom-sidebar, .ui-control-card, .highlight-col { min-width: 0; }
.ui-controls-grid > * { min-width: 0; }

.theme-card {
    appearance: none;
    -webkit-appearance: none;
    width: 100%;
    font: inherit;
    background: linear-gradient(180deg, color-mix(in srgb, var(--highlight-color) 86%, var(--card-bg) 14%), color-mix(in srgb, var(--card-bg) 94%, transparent));
    border: 1px solid color-mix(in srgb, var(--border-color) 76%, transparent);
    border-radius: var(--border-radius);
    padding: 1rem;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    text-align: left;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0.9rem;
    color: inherit;
    box-shadow: var(--box-shadow-sm);
    min-height: 228px;
    height: auto;
    overflow: hidden;
}
.theme-card:hover {
    transform: translateY(-4px);
    border-color: color-mix(in srgb, var(--accent-color) 36%, var(--border-color));
    box-shadow: var(--box-shadow-hover);
}
.theme-card.active {
    border-color: var(--accent-color);
    background: color-mix(in srgb, var(--accent-color) 9%, var(--card-bg));
    box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent-color) 38%, transparent), var(--box-shadow-hover);
}
.theme-card-preview {
    position: relative;
    width: 100%;
    flex-shrink: 0;
    height: 104px;
    padding: 0.75rem;
    border-radius: calc(var(--border-radius) - 4px);
    border: 1px solid color-mix(in srgb, var(--theme-preview-surface) 72%, transparent);
    background-color: var(--theme-preview-bg);
    background-image: var(--theme-preview-atmosphere);
    overflow: hidden;
}
.theme-card-preview::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, color-mix(in srgb, var(--theme-preview-highlight) 12%, transparent), transparent 58%);
    pointer-events: none;
}
.theme-card-preview-window,
.theme-card-preview-layout {
    position: relative;
    z-index: 1;
}
.theme-card-preview-window {
    display: flex;
    gap: 0.35rem;
}
.theme-card-preview-window span,
.theme-card-swatches span {
    width: 0.78rem;
    height: 0.78rem;
    border-radius: var(--border-radius-pill);
}
.theme-card-preview-window span {
    background: color-mix(in srgb, var(--theme-preview-surface) 76%, white 24%);
    border: 1px solid color-mix(in srgb, var(--theme-preview-bg) 45%, transparent);
}
.theme-card-preview-layout {
    display: grid;
    grid-template-columns: 56px 1fr;
    gap: 0.55rem;
    margin-top: 0.85rem;
}
.theme-card-preview-rail,
.theme-card-preview-stack span {
    border-radius: calc(var(--border-radius) - 8px);
    background: color-mix(in srgb, var(--theme-preview-surface) 88%, var(--theme-preview-bg) 12%);
    border: 1px solid color-mix(in srgb, var(--theme-preview-highlight) 30%, transparent);
}
.theme-card-preview-rail {
    min-height: 2.7rem;
}
.theme-card-preview-stack {
    display: grid;
    gap: 0.45rem;
}
.theme-card-preview-stack span:first-child {
    min-height: 1.25rem;
}
.theme-card-preview-stack span:last-child {
    min-height: 0.95rem;
    opacity: 0.84;
}
.theme-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    width: 100%;
    flex-shrink: 0;
}
.theme-icon {
    font-size: 1.5rem;
    line-height: 1;
    margin: 0;
}
.theme-card-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.35rem 0.7rem;
    border-radius: var(--border-radius-pill);
    background: color-mix(in srgb, var(--accent-color) 12%, transparent);
    color: var(--accent-color);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
}
.theme-name {
    font-weight: var(--font-weight-bold);
    font-size: 1.05rem;
    color: var(--text-color);
    line-height: 1.25;
    width: 100%;
}
.theme-description {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    min-height: 2.5em;
    width: 100%;
}
.theme-card-footer {
    margin-top: auto;
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 0.75rem;
    width: 100%;
    flex-shrink: 0;
}
.theme-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
    min-width: 0;
}
.theme-card-tag {
    display: inline-flex;
    align-items: center;
    padding: 0.28rem 0.58rem;
    border-radius: var(--border-radius-pill);
    background: color-mix(in srgb, var(--highlight-color) 78%, var(--card-bg) 22%);
    border: 1px solid color-mix(in srgb, var(--border-color) 70%, transparent);
    color: var(--text-muted);
    font-size: var(--font-size-xs);
}
.theme-card-swatches {
    display: flex;
    gap: 0.35rem;
    flex-shrink: 0;
}
.theme-card-swatches span {
    border: 1px solid color-mix(in srgb, var(--card-bg) 70%, transparent);
    box-shadow: 0 0 0 1px color-mix(in srgb, var(--border-color) 50%, transparent);
}
.theme-empty-state {
    grid-column: 1 / -1;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border: 1px dashed color-mix(in srgb, var(--border-color) 78%, transparent);
    background: color-mix(in srgb, var(--highlight-color) 82%, transparent);
    color: var(--text-muted);
    text-align: center;
}

/* Color Picker */
.color-section-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}
.custom-color-picker-area {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.custom-color-picker-area h4 {
    font-size: 1.05rem;
    color: var(--accent-color);
    margin: 0;
    font-weight: 700;
}
.color-picker-wrapper {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}
.color-input-box {
    position: relative;
    width: 60px;
    height: 60px;
    border-radius: var(--border-radius-sm);
    border: 3px solid var(--border-color);
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    overflow: hidden;
}
.color-input-box:hover {
    transform: scale(1.05);
    border-color: var(--accent-color);
}
.color-input-box input[type="color"] {
    position: absolute;
    inset: -10px;
    width: calc(100% + 20px);
    height: calc(100% + 20px);
    border: none;
    cursor: pointer;
}
.color-hex-input {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background: var(--highlight-color);
    color: var(--text-color);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    width: 150px;
    text-transform: uppercase;
}
.color-hex-input:focus {
    outline: none;
    border-color: var(--accent-color);
}
.add-preset-btn, .randomize-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--accent-color);
    color: var(--text-on-accent);
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-weight: 600;
    transition: all var(--transition-speed) ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.add-preset-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--box-shadow-hover);
}
.color-presets-area, .recommended-colors-area {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.color-presets-area h4, .recommended-colors-area h4 {
    font-size: 1.05rem;
    color: var(--accent-color);
    margin: 0;
    font-weight: 700;
}
.color-presets-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
    gap: 1rem;
}
.preset-item {
    position: relative;
    width: 60px;
    height: 60px;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    border: 3px solid var(--border-color);
    transition: all var(--transition-speed) ease;
}
.preset-item:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}
.preset-item.active {
    border-color: var(--text-color);
    box-shadow: 0 0 0 2px var(--accent-color);
}
.preset-delete {
    position: absolute;
    top: -8px;
    right: -8px;
    width: 24px;
    height: 24px;
    background: var(--danger-color);
    color: var(--text-on-danger);
    border: 2px solid var(--card-bg);
    border-radius: var(--border-radius-pill);
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xs);
    transition: all var(--transition-speed) ease;
    z-index: 100;
    pointer-events: auto;
}
.preset-item:hover .preset-delete {
    display: flex;
}
.preset-delete:hover {
    transform: scale(1.2);
    background: var(--danger-hover);
}

/* Contrast Warning */
.contrast-warning {
    background: linear-gradient(135deg, var(--warning-bg) 0%, var(--danger-bg) 100%);
    border: 2px solid var(--warning-border);
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    color: var(--warning-text);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    display: none;
    animation: warningPulse 2s ease-in-out infinite;
}
[data-theme="dark"] .contrast-warning,
[data-theme="space"] .contrast-warning,
[data-theme="midnight"] .contrast-warning,
[data-theme="forest"] .contrast-warning,
[data-theme="ocean"] .contrast-warning {
    background: linear-gradient(135deg, #7f1d1d 0%, var(--warning-text) 100%);
    color: var(--warning-text-dark);
    border-color: var(--danger-hover);
}

/* Font Section */
.font-options {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}
.font-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}
.font-group label {
    font-weight: var(--font-weight-semibold);
    color: var(--text-color);
    font-size: var(--font-size-lg);
}
.custom-select-wrapper {
    position: relative;
    width: 100%;
}
.custom-select-wrapper .select-arrow {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    color: var(--accent-color);
    transition: transform var(--transition-speed) ease;
}
.font-select {
    padding: 0.85rem 2.5rem 0.85rem var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background: var(--highlight-color);
    color: var(--text-color);
    font-size: var(--font-size-base);
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    width: 100%;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    min-height: 3.5rem;
}
.font-select:hover {
    border-color: var(--accent-color);
    background: var(--card-bg);
}
.font-select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: var(--focus-ring);
}
.font-select:focus~.select-arrow {
    transform: translateY(-50%) rotate(180deg);
}
.font-select option{
    padding: 0.5rem;
    transition: background var(--transition-speed) ease;
}
.font-select option:hover {
    background: var(--accent-color);
    color: var(--bg-color);
}
.font-preview {
    background: var(--highlight-color);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-lg);
    margin-top: 1rem;
    max-height: 200px;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--accent-color) var(--card-bg);
}
.font-preview p {
    margin: 0;
    line-height: 1.6;
}
.add-custom-font-btn {
    width: 100%;
    padding: 0.85rem var(--spacing-lg);
    background: var(--highlight-color);
    color: var(--text-color);
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-base);
    transition: all var(--transition-speed) ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1rem;
}
.add-custom-font-btn:hover {
    background: var(--accent-color);
    color: var(--bg-color);
    border-color: var(--accent-color);
    border-style: solid;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

/* UI Controls Grid (used in UI and A11y sections) */
.ui-controls-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}
.ui-control-card {
    background: var(--highlight-color);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    overflow-x: auto;
    max-width: 100%;
}
.ui-control-card label {
    font-weight: var(--font-weight-semibold);
    color: var(--text-color);
    font-size: var(--font-size-sm);
}
.ui-control-card.checkbox-card {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
}
.checkbox-info h4 {
    margin: 0;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--accent-color);
}
.checkbox-info p {
    margin: var(--spacing-xs) 0 0 0;
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}
.full-width {
    grid-column: 1 / -1;
}

/* Switches */
.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 28px;
    flex-shrink: 0;
}
.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}
.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    transition: 0.4s;
    border-radius: var(--border-radius-pill);
}
.slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 3px;
    bottom: 3px;
    background-color: var(--text-muted);
    transition: 0.4s;
    border-radius: var(--border-radius-pill);
}
input:checked + .slider {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
}
input:checked + .slider:before {
    transform: translateX(22px);
    background-color: var(--text-on-accent);
}

/* Ranges */
input[type="range"] {
    width: 100%;
    accent-color: var(--accent-color);
}
.range-labels {
    display: flex;
    justify-content: space-between;
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

/* Input with button group */
.input-with-btn {
    display: flex;
    gap: 0.5rem;
}
.input-with-btn input {
    flex: 1;
    padding: 0.65rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background: var(--card-bg);
    color: var(--text-color);
}
.clear-btn {
    background: var(--danger-color);
    color: var(--text-on-danger);
    border: none;
    border-radius: var(--border-radius-sm);
    width: 40px;
    cursor: pointer;
}

/* Custom Tabs (Shared between Presets and UI) */
.custom-tabs {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
    overflow-x: auto; /* allow horizontal scrolling when many tabs exist */
    overflow-y: none;
    -webkit-overflow-scrolling: touch;
    white-space: nowrap;
    min-height: 4rem;
}

/* Ensure tab buttons don't wrap and can scroll horizontally */
.custom-tabs .preset-tab-btn, .custom-tabs .ui-tab-btn { display: inline-block; }
.custom-tabs::-webkit-scrollbar { height: var(--scrollbar-size); }
.custom-tabs::-webkit-scrollbar-thumb { background: color-mix(in srgb, var(--accent-color) 40%, var(--border-color)); border-radius: var(--border-radius-sm); }

/* Highlight controls: stacked rows layout and scrollable options area */
.highlight-grid .highlight-grid-rows { display: flex; flex-direction: row; gap: 1rem; }
.highlight-row { display: flex; gap: 1rem; align-items: flex-start; }
.highlight-col { flex: 1; min-width: 0; }

.highlight-options-wrapper {
    max-height: calc(4 * 48px + 0.6rem * 3); /* approx 4 rows */
    overflow-x: auto; /* allow horizontal scrolling */
    overflow-y: hidden;
    padding-bottom: 0.4rem;
    scrollbar-width: thin;
    scrollbar-color: var(--accent-color) var(--card-bg);
    position: relative;
    -webkit-overflow-scrolling: touch;
    max-width: 100%;
}
.highlight-options-wrapper::after { /* hidden by default; only shown when overflowing */
    content: none;
}

.highlight-options-wrapper.overflowing::after {
    content: '';
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    width: 36px;
    pointer-events: none;
    background: linear-gradient(to right, rgba(255,255,255,0), var(--card-bg));
}
/* Add horizontal scrollbar styling (WebKit) */
.highlight-options-wrapper::-webkit-scrollbar { height: var(--scrollbar-size); }
.highlight-options-wrapper::-webkit-scrollbar-thumb { background: color-mix(in srgb, var(--accent-color) 40%, var(--border-color)); border-radius: var(--border-radius-sm); }

/* Adjust the options grid to flow by column so there are 4 rows visible and it scrolls horizontally as needed */
.highlight-options-grid {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: minmax(220px, 320px); /* bigger columns for clearer labels */
    grid-template-rows: repeat(4, minmax(48px, 1fr)); /* slightly taller rows */
    gap: 0.6rem;
    align-items: start;
    /* ensure the grid cannot compress columns below their min size and will overflow the wrapper */
    min-width: max-content;
}

/* Stronger rule to override other layout rules (applies inside the overlay) */
#customizationOverlay .highlight-options-grid {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: minmax(220px, 320px);
    grid-template-rows: repeat(4, minmax(48px, 1fr));
    gap: 0.6rem;
    align-items: start;
    min-width: max-content;
}

/* Ensure option buttons are consistent size and labels don't wrap */
.hl-option { min-width: 200px; min-height: 48px; box-sizing: border-box; padding: 0.6rem 0.8rem; }
.hl-option .hl-label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: calc(100% - 3rem); }


/* Ensure individual option buttons have a consistent height for row counting */
.hl-option { min-height: 44px; align-items: center; }

/* Specific button styles for tabs */
.preset-tab-btn, .ui-tab-btn {
    background: transparent;
    border: none;
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.5rem 1rem;
    border-bottom: 3px solid transparent;
    margin-bottom: -0.65rem;
    border-radius: 0;
}
.preset-tab-btn.active, .ui-tab-btn.active {
    color: var(--accent-color);
    border-bottom-color: var(--accent-color);
}
.presets-content-wrapper, .ui-content-wrapper {
    display: none;
}
.presets-content-wrapper.active, .ui-content-wrapper.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

.ui-control-card.is-disabled {
    opacity: 0.62;
}

.ui-control-card.is-disabled select,
.ui-control-card.is-disabled input,
.ui-control-card.is-disabled button {
    cursor: not-allowed;
}

.library-settings-note {
    margin: 0.65rem 0 0;
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.library-settings-note-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.library-settings-note-icon {
    width: 2.75rem;
    height: 2.75rem;
    border-radius: var(--border-radius-pill);
    background: color-mix(in srgb, var(--accent-color) 12%, transparent);
    color: var(--accent-color);
    display: grid;
    place-items: center;
    flex-shrink: 0;
}

.library-pref-custom {
    margin-top: 1.25rem;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: color-mix(in srgb, var(--highlight-color) 82%, var(--card-bg) 18%);
}

.library-pref-custom-header {
    margin-bottom: 1rem;
}

.library-pref-custom-header h4 {
    margin: 0 0 0.35rem;
    color: var(--accent-color);
}

.library-pref-custom-header p,
.library-pref-empty {
    margin: 0;
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

.library-pref-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.85rem;
}

.library-pref-item {
    display: grid;
    gap: 0.65rem;
    padding: 0.9rem;
    border: 1px solid color-mix(in srgb, var(--border-color) 70%, transparent);
    border-radius: var(--border-radius-sm);
    background: color-mix(in srgb, var(--card-bg) 88%, transparent);
}

.library-pref-item > span {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--text-color);
}

.library-pref-slots {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    flex-wrap: wrap;
}

.library-pref-slot {
    flex: 1 1 180px;
}

.library-pref-separator {
    color: var(--accent-color);
    font-weight: var(--font-weight-bold);
    opacity: 0.75;
}

.library-mode-toggle {
    margin-top: 0.85rem;
}

.library-mode-toggle .mode-btn {
    width: auto;
    min-width: 0;
    height: auto;
    min-height: 5.5rem;
}

@media (max-width: 768px) {
    .library-pref-slots {
        flex-direction: column;
        align-items: stretch;
    }

    .library-pref-slot {
        width: 100%;
    }

    .library-pref-separator {
        display: none;
    }

    .library-mode-toggle {
        flex-direction: column;
    }
}

/* Gallery Grid */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
}
.gallery-item {
    background: var(--highlight-color);
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.2s ease;
    border: 2px solid var(--border-color);
}
.gallery-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--box-shadow-hover);
}
.gallery-preview {
    height: 100px;
    background: linear-gradient(135deg, var(--p-bg), var(--p-card));
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}
.gallery-preview-circle {
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-pill);
    background: var(--p-accent);
    box-shadow: var(--box-shadow-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-lg);
}
.gallery-info {
    padding: 1rem;
}
.gallery-name {
    font-weight: 700;
    margin-bottom: 0.25rem;
}
.gallery-desc {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}


/* Presets Section */
.presets-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}
.preset-action-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--accent-color);
    color: var(--text-on-accent);
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-weight: var(--font-weight-semibold);
    transition: all var(--transition-speed) ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.preset-action-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}
.preset-action-btn.secondary {
    background: var(--highlight-color);
    color: var(--text-color);
    border: 2px solid var(--border-color);
}
.saved-presets {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}
.preset-card {
    background: var(--highlight-color);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    position: relative;
}
.preset-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}
.preset-card.active {
    border-color: var(--accent-color);
    background: color-mix(in srgb, var(--accent-color) 10%, var(--highlight-color) 90%);
}
.preset-card-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 1rem;
}
.preset-card-name {
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-lg);
    color: var(--text-color);
    word-break: break-word;
}
.preset-card-actions {
    display: flex;
    gap: 0.25rem;
}
.preset-card-btn {
    width: 28px;
    height: 28px;
    border: none;
    background: var(--card-bg);
    color: var(--text-color);
    border-radius: var(--border-radius-xs);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-speed) ease;
    font-size: var(--font-size-sm);
}
.preset-card-btn:hover {
    transform: scale(1.1);
}
.preset-card-btn.delete:hover {
    background: var(--danger-color);
    color: var(--text-on-danger);
}
.preset-card-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    opacity: 0.8;
}
.preset-detail {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.preset-color-dot {
    width: 16px;
    height: 16px;
    border-radius: var(--border-radius-pill);
    border: 2px solid var(--border-color);
}

/* Advanced Settings */
#advancedSection .setting-group {
    background: var(--highlight-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}
#advancedSection .setting-group h4 {
    font-size: 1.1rem;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin: 0 0 var(--spacing-md) 0;
}
#advancedSection .setting-group h4 i {
    color: var(--accent-color);
    font-size: 1.25rem;
}
#advancedSection .setting-description {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
}
.mode-toggle-container {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}
.mode-btn {
    flex: 1;
    padding: var(--spacing-md);
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--text-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    width: 5rem;
    height: 5rem;
}
.mode-btn i {
    font-size: var(--font-size-xl);
    color: var(--text-muted);
    transition: all 0.3s ease;
}
.mode-btn:hover {
    border-color: var(--accent-color);
    transform: translateY(-2px);
}
.mode-btn.active {
    border-color: var(--accent-color);
    background: color-mix(in srgb, var(--accent-color) 15%, var(--card-bg));
}
.mode-btn.active i {
    color: var(--accent-color);
}
.mode-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--card-bg);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}
.mode-indicator i {
    color: var(--accent-color);
}
#currentModeText {
    color: var(--accent-color);
}
.shortcut-config {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.shortcut-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}
.shortcut-item label {
    min-width: 100px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-color);
}
.shortcut-select {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-base);
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.3s ease;
    min-height: 3.5rem;
}
.shortcut-select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: var(--focus-ring);
}

/* ========================================
   DEV MODE STYLES
   ======================================== */

.dev-mode-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 2px solid var(--border-color);
}

.setting-group {
    padding: var(--spacing-md);
    background: var(--overlay-bg-weak);
    border-radius: var(--border-radius-sm);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

/* Text in colored containers should be accent-colored (auto-tinted by JS) */
.setting-group,
.dev-time-control,
.dev-weather-control,
.dev-quick-actions,
.dev-info-panel,
.ui-control-card,
.font-group,
.ui-controls-grid,
.mode-toggle-container {
    color: var(--accent-color);
}

.setting-group h4 {
    font-size: 1.05rem;
    color: var(--accent-color);
    font-weight: 700;
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: 0;
}

.setting-group h4 i {
    color: var(--accent-color);
    font-size: 1.2rem;
}

.dev-time-control,
.dev-weather-control,
.dev-quick-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--card-bg);
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
}

.time-input-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.time-input-group label,
.dev-weather-control label {
    font-weight: 600;
    font-size: var(--font-size-sm);
    color: var(--text-color);
}

.time-input-group input[type="time"] {
    padding: var(--spacing-md);
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-base);
    color: var(--text-color);
    transition: all 0.3s ease;
    min-height: 2.8rem;
    font-family: 'Courier New', monospace;
}

.time-input-group input[type="time"]:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: var(--focus-ring);
}

.dev-action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--accent-color);
    color: var(--text-on-accent);
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    min-height: 2.8rem;
}

.dev-action-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

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

.dev-action-btn.secondary {
    background: var(--border-color);
    color: var(--text-color);
}

.dev-action-btn.secondary:hover {
    background: var(--accent-color);
    color: var(--text-on-accent);
}

.dev-action-btn.danger {
    background: #ff6b6b;
}

.dev-action-btn.danger:hover {
    background: #ff5252;
}

.dev-action-btn i {
    font-size: 1rem;
}

.dev-info {
    padding: var(--spacing-md);
    background: var(--card-bg);
    border-left: 4px solid var(--accent-color);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-sm);
    color: var(--text-color-secondary);
    border: 1px solid var(--border-color);
}

.dev-info strong {
    color: var(--accent-color);
    font-weight: 700;
    font-family: 'Courier New', monospace;
}

.dev-info-panel {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--card-bg);
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
}

.dev-info-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--overlay-bg-weak);
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
}

.dev-info-item span {
    font-size: var(--font-size-sm);
    color: var(--text-color-secondary);
    font-weight: 500;
}

.dev-info-item strong {
    font-family: 'Courier New', monospace;
    color: var(--accent-color);
    font-weight: 700;
    font-size: var(--font-size-base);
}

.dev-quick-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-md);
}

/* Responsive adjustments */
@media (max-width: 640px) {
    .dev-time-control,
    .dev-weather-control,
    .dev-quick-actions {
        flex-direction: column;
    }

    .dev-quick-actions {
        grid-template-columns: 1fr;
    }

    .dev-info-panel {
        grid-template-columns: 1fr;
    }

    .dev-action-btn {
        width: 100%;
    }
}

/* ========================================
   BASE SECTION - INPUT STYLES SHOWCASE
   ======================================== */

.base-inputs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.base-input-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.base-input-group.full-width {
    grid-column: 1 / -1;
}

.base-input-group h4 {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    opacity: 0.7;
    margin: 0;
}

.base-demo-input {
    padding: var(--input-padding, 0.75rem 1rem);
    border: 1px solid var(--input-border);
    border-radius: var(--border-radius);
    background: var(--input-bg);
    color: var(--text);
    font-size: 0.95rem;
    font-family: inherit;
    transition: all var(--transition-speed) ease;
    cursor: pointer;
}

.base-demo-checkbox,
.base-demo-radio {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
}

.base-demo-checkbox input,
.base-demo-radio input {
    cursor: pointer;
}

.base-demo-checkbox span,
.base-demo-radio span {
    font-size: 0.95rem;
}

.base-color-picker-demo {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.base-color-picker-demo input[type="color"] {
    width: 60px;
    height: 40px;
    cursor: pointer;
    border-radius: var(--border-radius);
    border: 1px solid var(--input-border);
}

/* ========================================
   IMPROVED INPUT CONTROLS STYLING
   ======================================== */

/* Number Input with Increment/Decrement Buttons */
.number-input-wrapper {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    border: 1px solid var(--input-border);
    border-radius: var(--border-radius);
    background: var(--input-bg);
    padding: 0.25rem;
}

.number-btn {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.5rem 0.75rem;
    font-size: 1.1rem;
    color: var(--text);
    transition: all var(--transition-speed) ease;
    border-radius: calc(var(--border-radius) - 2px);
    flex-shrink: 0;
}

.number-btn:hover {
    background: var(--accent-color);
    color: var(--text-on-accent);
}

.number-btn:active {
    transform: scale(0.95);
}

.number-input-field {
    flex: 1;
    border: none;
    background: transparent;
    text-align: center;
    padding: 0.5rem;
    font-size: 1rem;
    color: var(--text);
}

.number-input-field:focus {
    outline: none;
    color: var(--accent-color);
}

/* Range Slider with Value Display */
.range-slider-demo {
    width: 100%;
}

.range-slider-demo::-webkit-slider-track {
    background: var(--input-border);
    height: 6px;
    border-radius: 3px;
}

.range-slider-demo::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent-color);
    cursor: pointer;
    margin-top: -6px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    transition: all var(--transition-speed) ease;
}

.range-slider-demo::-webkit-slider-thumb:hover {
    transform: scale(1.15);
    box-shadow: 0 2px 12px var(--accent-color);
}

.range-slider-demo::-moz-range-track {
    background: var(--input-border);
    height: 6px;
    border-radius: 3px;
    border: none;
}

.range-slider-demo::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent-color);
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    transition: all var(--transition-speed) ease;
}

.range-slider-demo::-moz-range-thumb:hover {
    transform: scale(1.15);
    box-shadow: 0 2px 12px var(--accent-color);
}

.range-value-display {
    margin-top: 0.5rem;
    font-size: 0.9rem;
    color: var(--accent-color);
    font-weight: 600;
    text-align: center;
}

/* Radio Button Range Control */
.radio-range-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.radio-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    padding: 0.5rem 1rem;
    border: 2px solid var(--input-border);
    border-radius: var(--border-radius);
    transition: all var(--transition-speed) ease;
    background: transparent;
}

.radio-option input[type="radio"] {
    cursor: pointer;
    accent-color: var(--accent-color);
    width: 18px;
    height: 18px;
}

.radio-option:hover {
    border-color: var(--accent-color);
    background: rgba(97, 150, 255, 0.1);
}

.radio-option input[type="radio"]:checked + span {
    color: var(--accent-color);
    font-weight: 600;
}

.radio-option input[type="radio"]:checked {
    accent-color: var(--accent-color);
}

/* Custom Color Picker */
.custom-color-picker-container {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.custom-color-input {
    width: 70px;
    height: 50px;
    cursor: pointer;
    border-radius: var(--border-radius);
    border: 2px solid var(--input-border);
    transition: all var(--transition-speed) ease;
    padding: 2px;
}

.custom-color-input:hover {
    border-color: var(--accent-color);
    box-shadow: 0 0 12px var(--accent-color);
}

.color-value-display {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent-color);
    min-width: 80px;
    text-align: center;
    padding: 0.5rem;
    border: 1px solid var(--input-border);
    border-radius: var(--border-radius);
    background: var(--input-bg);
}

/* Textarea min/max height */
textarea.base-demo-input {
    min-height: 80px;
    max-height: 200px;
    resize: vertical;
}