@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600&display=swap');

/* Typography Advanced Styles */
.category-filters {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding: 10px 0;
    margin-bottom: 5px;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.category-filters::-webkit-scrollbar {
    display: none;
}

.filter-tag {
    white-space: nowrap;
    padding: 6px 14px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 0.75rem;
    color: var(--text-dim);
    cursor: pointer;
    transition: all 0.2s ease;
}

.filter-tag:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-color);
}

.filter-tag.active {
    background: var(--accent-gradient);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.font-gallery {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin: 10px 0;
    max-height: 400px;
    overflow-y: auto;
    padding: 10px;
    padding-right: 15px;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 12px;
}

.font-category-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.font-category-header {
    position: sticky;
    top: -10px;
    background: var(--sidebar-bg);
    padding: 10px 0;
    font-size: 0.7rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--accent-color);
    border-bottom: 1px solid var(--border-color);
    z-index: 10;
}

.font-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.font-card {
    background: #ffffff;
    color: #000000 !important;
    border-radius: 12px;
    padding: 14px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid transparent;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 55px;
}

.font-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
    border-color: rgba(0, 242, 254, 0.3);
}

.font-card.active {
    border-color: #00f2fe;
    background: #ffffff;
    box-shadow: 0 0 0 4px rgba(0, 242, 254, 0.15), 0 8px 20px rgba(0, 0, 0, 0.12);
}

/* Toggle Group Styles */
.toggle-bar {
    display: flex;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    padding: 4px;
    gap: 4px;
    border: 1px solid var(--border-color);
}

.toggle-btn {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-color);
    padding: 10px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
}

.toggle-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.toggle-btn.active {
    background: var(--accent-gradient);
    color: #fff !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.font-card span {
    display: block;
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.font-card small {
    display: block;
    font-size: 0.6rem;
    opacity: 0.6;
    margin-top: 4px;
    text-transform: uppercase;
}

.font-gallery::-webkit-scrollbar {
    width: 4px;
}

.font-gallery::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.1);
    border-radius: 10px;
}

:root {
    /* Night Mode (Obsidian & Neon) */
    --bg-color: #0d0d0d;
    --sidebar-bg: #121212;
    --workspace-bg: #000000;
    --card-bg: rgba(255, 255, 255, 0.05);
    --input-bg: rgba(255, 255, 255, 0.05);
    --accent-color: #ff00ff;
    --accent-gradient: linear-gradient(135deg, #ff00ff 0%, #00f2fe 100%);
    --text-color: #ffffff;
    --text-dim: #9ca3af;
    --border-color: rgba(255, 255, 255, 0.1);
    --shadow: 0 10px 40px rgba(0, 0, 0, 0.8);
    --btn-secondary: rgba(255, 255, 255, 0.05);

    --sidebar-width: 380px;
    --nav-width: 85px;
    --header-height: 70px;
}

[data-theme="light"] {
    /* Day Mode (Pearl & Slate) */
    --bg-color: #f3f4f6;
    --sidebar-bg: #ffffff;
    --workspace-bg: #e5e7eb;
    --card-bg: #f9fafb;
    --input-bg: #f3f4f6;
    --accent-color: #374151;
    --accent-gradient: linear-gradient(135deg, #1f2937 0%, #4b5563 100%);
    --text-color: #111827;
    --text-dim: #4b5563;
    --border-color: rgba(0, 0, 0, 0.08);
    --shadow: 0 10px 40px rgba(0, 0, 0, 0.04);
    --btn-secondary: #f3f4f6;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    overflow: hidden;
    height: 100vh;
    transition: background-color 0.3s ease, color 0.3s ease;
}

#app {
    display: grid;
    grid-template-columns: var(--nav-width) var(--sidebar-width) 1fr;
    grid-template-rows: var(--header-height) 1fr;
    height: 100vh;
}

#histogram-container {
    background: var(--input-bg);
    border-radius: 8px;
    padding: 10px;
    margin-bottom: 1rem;
    height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
}

#histogramCanvas {
    width: 100%;
    height: 100%;
}

.num-input {
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    width: 60px;
    border-radius: 4px;
    padding: 2px 5px;
    text-align: right;
    font-size: 0.8rem;
    outline: none;
    transition: all 0.3s ease;
}

.num-input:focus {
    border-color: var(--accent-color);
    background: rgba(0, 242, 254, 0.05);
}

/* Sidebar Tab Navigation */
.sidebar-container {
    grid-column: 1 / 3;
    grid-row: 2;
    display: flex;
    background: var(--sidebar-bg);
    height: calc(100vh - var(--header-height));
    overflow: hidden;
}

.sidebar-tabs {
    width: 85px;
    background: var(--sidebar-bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1.5rem 0;
    gap: 0.8rem;
    border-right: 1px solid var(--border-color);
}

.nav-tab {
    width: 70px;
    height: 65px;
    border-radius: 12px;
    background: transparent;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

.nav-tab i {
    font-size: 1.1rem;
}

.nav-tab span {
    font-size: 0.65rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    opacity: 0.8;
}

.nav-tab:hover {
    color: var(--text-color);
    background: var(--btn-secondary);
}

.nav-tab.active {
    background: var(--accent-gradient);
    color: #fff;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transform: scale(1.05);
}

.main-sidebar {
    flex: 1;
    padding: 1.5rem;
    overflow-y: overlay;
    border-right: 1px solid var(--border-color);
    height: 100%;
    background: var(--sidebar-bg);
}

.main-sidebar::-webkit-scrollbar {
    width: 4px;
}

.main-sidebar::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
}

.tab-content {
    display: none;
    animation: slideIn 0.3s ease-out;
}

.tab-content.active {
    display: block;
}

.tab-main-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 2rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.8rem;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Custom Range Sliders */
.slider-container {
    margin-bottom: 1.5rem;
}

.slider-label {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    margin-bottom: 0.8rem;
    color: var(--text-dim);
}

input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 4px;
    background: var(--border-color);
    border-radius: 2px;
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    background: #fff;
    border: 2px solid var(--accent-color);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: var(--shadow);
    transition: all 0.2s ease;
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    background: var(--accent-color);
}

/* Toggle Switch (Neon Mode) */
#neon-mode {
    display: none;
}

.neon-toggle-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--input-bg);
    padding: 12px 15px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all 0.3s ease;
}

.neon-toggle-label:hover {
    background: var(--btn-secondary);
    border-color: var(--accent-color);
}

.switch {
    position: relative;
    width: 40px;
    height: 20px;
    background: var(--border-color);
    border-radius: 20px;
    transition: all 0.3s ease;
}

.switch::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    background: #fff;
    border-radius: 50%;
    top: 2px;
    left: 2px;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

#neon-mode:checked+.neon-toggle-label .switch {
    background: var(--accent-gradient);
}

#neon-mode:checked+.neon-toggle-label .switch::after {
    left: 22px;
}

/* Color Picker & Text Field */
.color-picker-container {
    margin-top: 1rem;
}

input[type="color"] {
    width: 100%;
    height: 40px;
    border: none;
    border-radius: 8px;
    background: transparent;
    cursor: pointer;
}

.text-field {
    width: 100%;
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px;
    color: var(--text-color);
    margin-bottom: 1rem;
    outline: none;
}

.text-field:focus {
    border-color: var(--accent-color);
}

/* Header & Actions */
header {
    grid-column: 1 / -1;
    background: var(--sidebar-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    z-index: 100;
}

.logo {
    font-size: 1.5rem;
    font-weight: 600;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 1px;
}

.divider {
    width: 1px;
    height: 24px;
    background: var(--border-color);
    margin: 0 0.5rem;
}

.action-buttons {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn {
    padding: 0.6rem 0.8rem;
    min-width: 40px;
    justify-content: center;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    padding: 0.6rem 1.2rem;
    background: var(--accent-gradient);
    color: #000;
}

.btn-secondary {
    background: var(--btn-secondary);
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

.btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

.w-100 {
    width: 100%;
}

.mt-2 {
    margin-top: 0.5rem;
}

/* Control Groups — Accordion Card Style */
.control-group {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    margin-bottom: 10px;
    /* overflow: hidden; Removed to allow dropdowns to pop out */
    transition: box-shadow 0.2s ease;
    position: relative;
    /* Base for dropdown positioning */
}

.control-group:hover {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
}

.control-group h3 {
    font-size: 0.72rem;
    text-transform: uppercase;
    color: var(--accent-color);
    letter-spacing: 1.5px;
    opacity: 1;
    margin: 0;
    padding: 12px 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    user-select: none;
    border-bottom: 1px solid var(--border-color);
    transition: background 0.2s;
    gap: 8px;
    border-radius: 14px 14px 0 0;
    /* Keep top rounded */
}

.control-group h3:hover {
    background: rgba(255, 255, 255, 0.03);
}

.control-group h3 .cg-title {
    display: flex;
    align-items: center;
    gap: 7px;
    flex: 1;
}

.control-group h3 .cg-chevron {
    font-size: 0.65rem;
    transition: transform 0.3s ease;
    opacity: 0.6;
    flex-shrink: 0;
}

.control-group.collapsed h3 .cg-chevron {
    transform: rotate(-90deg);
}

.control-group.collapsed h3 {
    border-bottom-color: transparent;
}

.cg-body {
    padding: 14px;
    animation: cgOpen 0.2s ease-out;
    border-radius: 0 0 14px 14px;
    /* Keep bottom rounded */
}

.control-group.collapsed .cg-body {
    display: none;
}

@keyframes cgOpen {
    from {
        opacity: 0;
        transform: translateY(-6px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* "NEW" badge */
.badge-new {
    font-size: 0.55rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 20px;
    background: linear-gradient(135deg, #a78bfa, #ec4899);
    color: #fff;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    vertical-align: middle;
    flex-shrink: 0;
}

/* Toggle feature button */
.toggle-btn {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 10px 14px;
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-dim);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-bottom: 10px;
}

.toggle-btn:hover {
    border-color: var(--accent-color);
    color: var(--text-color);
}

.toggle-btn.active {
    background: var(--accent-gradient);
    color: #000;
    border-color: transparent;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
}

.toggle-pill {
    width: 36px;
    height: 20px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 20px;
    position: relative;
    transition: background 0.3s;
    flex-shrink: 0;
}

.toggle-btn.active .toggle-pill {
    background: rgba(0, 0, 0, 0.25);
}

.toggle-pill::after {
    content: '';
    position: absolute;
    width: 14px;
    height: 14px;
    background: #fff;
    border-radius: 50%;
    top: 3px;
    left: 3px;
    transition: left 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.toggle-btn.active .toggle-pill::after {
    left: 19px;
}

/* Remove old slider-container bottom margin inside cg-body */
.cg-body .slider-container:last-child {
    margin-bottom: 0;
}

.filter-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.font-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.font-category-group {
    margin-bottom: 20px;
}

.font-category-header {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-dim);
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.font-card {
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 10px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--text-color);
    font-size: 1.1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.font-card:hover {
    border-color: var(--accent-color);
    background: var(--btn-secondary);
}

.font-card.active {
    background: var(--accent-gradient);
    color: #000;
    border-color: transparent;
    font-weight: 600;
}

.filter-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    color: var(--text-dim);
    position: relative;
    overflow: hidden;
}

.filter-preview-container {
    width: 100%;
    aspect-ratio: 1;
    border-radius: 8px;
    overflow: hidden;
    background: #000;
    margin-bottom: 4px;
    position: relative;
}

.filter-preview-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.filter-card:hover .filter-preview-img {
    transform: scale(1.1);
}

.filter-card span {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.filter-card:hover {
    border-color: var(--accent-color);
    background: var(--btn-secondary);
    transform: translateY(-4px);
    color: var(--text-color);
}

.filter-tag {
    padding: 6px 14px;
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s ease;
    color: var(--text-dim);
}

.filter-tag:hover {
    border-color: var(--accent-color);
    color: var(--text-color);
}

.filter-tag.active {
    background: var(--accent-gradient);
    color: #000;
    border-color: transparent;
    font-weight: 600;
}

.filter-card.active {
    background: rgba(0, 242, 254, 0.1);
    border-color: var(--accent-color);
    box-shadow: 0 0 20px rgba(0, 242, 254, 0.2);
    color: #fff;
}

.filter-card.active::after {
    content: '\f058';
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    position: absolute;
    top: 5px;
    right: 5px;
    color: var(--accent-color);
    font-size: 0.8rem;
    text-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
}

/* Overlays Specifics */
.sticker-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
}

.sticker-item {
    aspect-ratio: 1;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.sticker-item:hover {
    background: rgba(255, 0, 255, 0.1);
    transform: scale(1.15) rotate(5deg);
    border-color: var(--accent-color);
}

/* AI Loader */
.loader {
    width: 48px;
    height: 48px;
    border: 3px solid var(--accent-color);
    border-radius: 50%;
    display: inline-block;
    position: relative;
    box-sizing: border-box;
    animation: rotation 1s linear infinite;
    margin-bottom: 1.5rem;
}

.loader::after {
    content: '';
    box-sizing: border-box;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 3px solid transparent;
    border-bottom-color: #FF3D00;
}

@keyframes rotation {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

/* Animations */
@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(255, 0, 255, 0.4);
    }

    70% {
        box-shadow: 0 0 0 10px rgba(255, 0, 255, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(255, 0, 255, 0);
    }
}

.neon-active {
    animation: pulse 2s infinite;
}

.feature-hint {
    font-size: 0.75rem;
    color: var(--text-dim);
    margin-top: 1rem;
    line-height: 1.4;
    font-style: italic;
    opacity: 0.8;
}

/* Main Workspace */
main {
    background-color: var(--workspace-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

#canvas-container {
    position: relative;
    width: 100%;
    height: 100%;
    max-width: 100%;
    max-height: 100%;
    box-shadow: var(--shadow);
    border-radius: 4px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--input-bg);
}

#canvas-container.drag-over {
    border: 2px dashed var(--accent-color);
    background: rgba(0, 242, 254, 0.05);
}

#canvas-container.drag-over .upload-overlay {
    background: rgba(0, 242, 254, 0.1);
}

.upload-overlay h2 {
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.upload-overlay p {
    color: var(--text-dim);
    font-size: 0.9rem;
}

canvas {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    transition: filter 0.1s ease;
}

.upload-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(8px);
    z-index: 10;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.upload-overlay.hidden {
    opacity: 0 !important;
    visibility: hidden !important;
    display: none !important;
}

.upload-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--accent-color);
    transition: color 0.3s ease;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.1);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-dim);
}

/* Layer System styles */
.layers-container {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 10px;
}

.layer-item {
    display: flex;
    align-items: center;
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px 12px;
    gap: 10px;
    transition: all 0.2s ease;
}

.layer-item.active {
    background: rgba(0, 242, 254, 0.1);
    border-color: var(--accent-color);
}

.layer-thumb {
    width: 32px;
    height: 32px;
    background: var(--btn-secondary);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: var(--accent-color);
    flex-shrink: 0;
}

.layer-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.layer-title {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-color);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.layer-type {
    font-size: 0.7rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    margin-top: 4px;
}

.layer-actions {
    display: flex;
    gap: 4px;
}

.layer-btn {
    background: transparent;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    padding: 4px 6px;
    border-radius: 4px;
    transition: all 0.2s;
}

.layer-btn:hover {
    background: var(--btn-secondary);
    color: var(--text-color);
}

.layer-btn.delete:hover {
    color: #ff4757;
    background: rgba(255, 71, 87, 0.1);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeIn 0.5s ease-out forwards;
}

/* Custom Premium Blend Selector */
.custom-blend-selector {
    position: relative;
    width: 100%;
    margin-bottom: 12px;
    z-index: 1;
    /* Default lower than open state */
}

.custom-blend-selector.open {
    z-index: 1001;
    /* Lift above other cards */
}

.blend-trigger {
    width: 100%;
    padding: 10px 14px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    color: var(--text-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(5px);
}

.blend-trigger:hover {
    border-color: var(--accent-color);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 15px rgba(0, 242, 254, 0.1);
}

.blend-trigger i {
    font-size: 0.7rem;
    opacity: 0.5;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.custom-blend-selector.open .blend-trigger i {
    transform: rotate(180deg);
}

.blend-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    width: 100%;
    max-height: 420px;
    background: rgba(15, 15, 15, 0.85);
    backdrop-filter: blur(25px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    z-index: 1000;
    overflow-y: auto;
    display: none;
    padding: 10px;
    box-shadow:
        0 20px 50px rgba(0, 0, 0, 0.6),
        inset 0 0 0 1px rgba(255, 255, 255, 0.05);
}

.custom-blend-selector.open .blend-menu {
    display: block;
    animation: menuEntrance 0.3s cubic-bezier(0.23, 1, 0.32, 1) forwards;
}

@keyframes menuEntrance {
    from {
        opacity: 0;
        transform: translateY(-15px) scale(0.98);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.blend-group {
    margin-bottom: 12px;
}

.blend-group:last-child {
    margin-bottom: 0;
}

.blend-group-label {
    font-size: 10px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--text-dim);
    padding: 8px 12px 6px 12px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.blend-group-label i {
    font-size: 11px;
    opacity: 0.7;
}

/* Base styles for individual blend items */
.blend-item {
    padding: 9px 12px;
    font-size: 0.82rem;
    color: var(--text-dim);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: space-between;
    opacity: 0;
    /* Animated in via JS delays */
    transform: translateX(-5px);
}

.custom-blend-selector.open .blend-item {
    animation: itemSlideIn 0.4s cubic-bezier(0.23, 1, 0.32, 1) forwards;
    animation-delay: var(--delay);
}

@keyframes itemSlideIn {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.blend-item:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-color);
    padding-left: 18px;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.05);
}

.blend-item.active {
    background: var(--accent-gradient);
    color: #000;
    font-weight: 700;
    box-shadow: 0 4px 15px rgba(0, 242, 254, 0.3);
}

.blend-item.active i.check-icon {
    font-size: 0.75rem;
    color: #000;
}

.blend-item i.check-icon {
    opacity: 0;
}

.blend-item.active i.check-icon {
    opacity: 1;
}

/* Category Specific Accents */
.blend-group[data-cat="Darken"] .blend-group-label {
    color: #ff9f43;
}

.blend-group[data-cat="Lighten"] .blend-group-label {
    color: #54a0ff;
}

.blend-group[data-cat="Contrast"] .blend-group-label {
    color: #5f27cd;
}

.blend-group[data-cat="Inversion"] .blend-group-label {
    color: #ff6b6b;
}

.blend-group[data-cat="Component"] .blend-group-label {
    color: #1dd1a1;
}

/* Scrollbar adjustment for the menu */
.blend-menu::-webkit-scrollbar {
    width: 4px;
}

.blend-menu::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}

/* Layer Blend Select Compact (for Layers tab) */
.layer-blend-compact {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    padding: 4px 10px;
    font-size: 11px;
    color: var(--text-dim);
    cursor: pointer;
    transition: all 0.2s ease;
    backdrop-filter: blur(5px);
}

.layer-blend-compact:hover {
    border-color: var(--accent-color);
    color: var(--text-color);
    background: rgba(255, 255, 255, 0.1);
}

/* --- Mobile Responsiveness --- */

@media (max-width: 768px) {
    :root {
        --sidebar-width: 100%;
        --nav-width: 100%;
        --header-height: 60px;
    }

    #app {
        display: flex;
        flex-direction: column;
        height: 100vh;
        height: 100dvh;
    }

    .logo {
        display: block;
        font-size: 1rem;
        text-align: center;
        width: 100%;
        margin-bottom: 8px;
    }

    header {
        padding: 10px;
        height: auto !important;
        flex-direction: column;
        gap: 5px;
        justify-content: center;
        flex-shrink: 0;
    }

    .action-buttons {
        width: 100%;
        justify-content: space-between;
        gap: 2px;
    }

    .btn {
        padding: 0.5rem;
        min-width: 36px;
        font-size: 0.8rem;
    }

    .action-buttons .btn {
        outline: none;
    }

    /* Hide text on specific header buttons */
    .action-buttons .btn:has(.fa-upload),
    .action-buttons .btn:has(.fa-download) {
        font-size: 0;
        padding: 0.5rem 0.6rem;
    }

    .action-buttons .btn:has(.fa-upload) i,
    .action-buttons .btn:has(.fa-download) i {
        font-size: 0.9rem;
        margin: 0;
    }

    .divider {
        margin: 0 2px;
    }

    /* Workspace takes available top space */
    main.workspace {
        flex: 1;
        width: 100%;
        order: 1;
        padding: 10px;
        min-height: 0;
        /* Important for flex child to shrink */
    }

    /* Sidebar container goes to the bottom */
    .sidebar-container {
        flex-direction: column-reverse;
        /* tabs at bottom, properties above */
        width: 100%;
        height: 40vh;
        /* Bottom 40% of screen */
        order: 2;
        border-right: none;
        border-top: 1px solid var(--border-color);
        flex-shrink: 0;
    }

    .sidebar-tabs {
        width: 100%;
        height: 65px;
        flex-direction: row;
        padding: 0 5px;
        border-right: none;
        border-top: 1px solid var(--border-color);
        overflow-x: auto;
        justify-content: flex-start;
        align-items: center;
        gap: 5px;
    }

    .nav-tab {
        width: 60px;
        height: 50px;
        flex-shrink: 0;
    }

    .nav-tab i {
        font-size: 1rem;
    }

    .nav-tab span {
        font-size: 0.55rem;
    }

    .main-sidebar {
        width: 100%;
        height: calc(100% - 65px);
        border-right: none;
        padding: 1rem;
    }

    .cg-body {
        padding: 10px;
    }

    .slider-container {
        margin-bottom: 1rem;
    }

    .filter-grid,
    .font-grid,
    .sticker-grid {
        grid-template-columns: repeat(3, 1fr) !important;
    }
}

@media (max-width: 480px) {

    .filter-grid,
    .font-grid,
    .sticker-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }

    .action-buttons .btn {
        min-width: 32px;
        padding: 0.4rem;
    }

    header {
        padding: 0 5px;
    }
}