@import url('https://fonts.googleapis.com/css2?family=Fira+Code:wght@400;500;600&family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
    --bg-main: #060913;
    --bg-card: rgba(13, 22, 43, 0.45);
    --bg-card-hover: rgba(18, 30, 58, 0.6);
    --bg-sidebar: rgba(8, 14, 28, 0.85);
    --bg-input: rgba(4, 7, 15, 0.6);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(99, 102, 241, 0.15);
    --border-active: rgba(99, 102, 241, 0.5);
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --accent-cyan: #06b6d4;
    --accent-purple: #a855f7;
    --accent-indigo: #6366f1;
    --accent-emerald: #10b981;
    --accent-rose: #f43f5e;
    --accent-amber: #f59e0b;
    
    --gradient-primary: linear-gradient(135deg, var(--accent-indigo), var(--accent-purple));
    --gradient-glow: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(168, 85, 247, 0.15));
    --gradient-cyan-teal: linear-gradient(135deg, var(--accent-cyan), #0d9488);
    
    --font-sans: 'Outfit', sans-serif;
    --font-mono: 'Fira Code', monospace;
    
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-glow-indigo: 0 0 20px rgba(99, 102, 241, 0.15);
    --shadow-glow-cyan: 0 0 20px rgba(6, 182, 212, 0.15);
}

/* Base resets */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-sans);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Background Mesh Glow */
body::before {
    content: '';
    position: absolute;
    top: -10%;
    left: -10%;
    width: 60%;
    height: 60%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.08) 0%, transparent 70%);
    z-index: -1;
    pointer-events: none;
    filter: blur(80px);
}

body::after {
    content: '';
    position: absolute;
    bottom: -10%;
    right: -10%;
    width: 60%;
    height: 60%;
    background: radial-gradient(circle, rgba(168, 85, 247, 0.06) 0%, transparent 70%);
    z-index: -1;
    pointer-events: none;
    filter: blur(80px);
}

/* Custom Scrollbars */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Layout Container */
.app-container {
    display: flex;
    height: 100vh;
    width: 100vw;
    overflow: hidden;
}

/* Sidebar Styling */
.sidebar {
    width: 280px;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    backdrop-filter: blur(20px);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    z-index: 10;
    transition: var(--transition-normal);
}

.sidebar-brand {
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--border-color);
}

.brand-icon {
    width: 38px;
    height: 38px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(168, 85, 247, 0.3);
    color: var(--text-primary);
    font-size: 1.2rem;
}

.brand-name {
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, #fff, #a855f7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.brand-domain {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 400;
    margin-left: 2px;
    letter-spacing: 0.5px;
}

/* Search trigger in sidebar */
.sidebar-search-btn {
    margin: 16px;
    padding: 12px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    font-size: 0.9rem;
    transition: var(--transition-fast);
}
.sidebar-search-btn:hover {
    border-color: var(--border-active);
    color: var(--text-secondary);
    box-shadow: var(--shadow-glow-indigo);
}
.search-shortcut {
    background: rgba(255, 255, 255, 0.08);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-family: var(--font-mono);
}

/* Navigation Links */
.sidebar-nav {
    flex-grow: 1;
    overflow-y: auto;
    padding: 12px;
}

.nav-section {
    margin-bottom: 20px;
}

.nav-section-title {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    padding: 8px 12px;
}

.nav-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.nav-item-btn {
    width: 100%;
    padding: 10px 14px;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    transition: var(--transition-fast);
    text-align: left;
}

.nav-item-btn:hover {
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-primary);
}

.nav-item-btn.active {
    background: rgba(99, 102, 241, 0.15);
    color: var(--text-primary);
    border-left: 3px solid var(--accent-indigo);
    padding-left: 11px;
}

.nav-item-btn i {
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.sec-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    color: var(--accent-emerald);
    font-weight: 500;
}

.sec-badge i {
    font-size: 0.95rem;
}

/* Main Viewport */
.main-viewport {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

/* Main Header */
.main-header {
    height: 70px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    background: rgba(6, 9, 19, 0.4);
    backdrop-filter: blur(10px);
}

.active-tool-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.active-tool-title {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.3px;
}

.active-tool-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.btn-secondary {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-family: var(--font-sans);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    transition: var(--transition-fast);
}
.btn-secondary:hover {
    border-color: var(--text-muted);
    color: var(--text-primary);
}

/* Content Pane */
.content-pane {
    flex-grow: 1;
    overflow-y: auto;
    padding: 32px;
    position: relative;
}

/* Panel Router Screens */
.tool-screen {
    display: none;
    height: 100%;
    flex-direction: column;
    animation: fadeIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.tool-screen.active {
    display: flex;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Dashboard Drop Zone Screen */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
    height: 100%;
}

.drop-zone-card {
    border: 2px dashed rgba(99, 102, 241, 0.35);
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 48px;
    text-align: center;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: var(--transition-normal);
}

.drop-zone-card:hover, .drop-zone-card.dragover {
    border-color: var(--accent-cyan);
    background: rgba(6, 182, 212, 0.04);
    box-shadow: var(--shadow-glow-cyan);
}

.drop-zone-icon {
    font-size: 3.5rem;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: pulseGlow 3s infinite ease-in-out;
}

@keyframes pulseGlow {
    0%, 100% { filter: drop-shadow(0 0 2px rgba(6, 182, 212, 0)); }
    50% { filter: drop-shadow(0 0 12px rgba(6, 182, 212, 0.4)); }
}

.drop-zone-title {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.drop-zone-subtitle {
    font-size: 0.95rem;
    color: var(--text-secondary);
    max-width: 450px;
    line-height: 1.5;
    margin-bottom: 24px;
}

.drop-zone-input {
    display: none;
}

.dashboard-tools-section {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.section-headline {
    font-size: 1.1rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-primary);
}

.tools-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
}

.tool-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    cursor: pointer;
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.tool-card:hover {
    border-color: var(--border-active);
    transform: translateY(-2px);
    background: var(--bg-card-hover);
    box-shadow: var(--shadow-glow-indigo);
}

.tool-card-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    background: rgba(255, 255, 255, 0.05);
    color: var(--accent-indigo);
    transition: var(--transition-normal);
}

.tool-card:hover .tool-card-icon {
    background: var(--gradient-primary);
    color: var(--text-primary);
    box-shadow: 0 4px 10px rgba(168, 85, 247, 0.2);
}

.tool-card-title {
    font-size: 1.05rem;
    font-weight: 700;
}

.tool-card-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* Tool View Layout Blocks */
.panel-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    flex-grow: 1;
    min-height: 0; /* Important for flex child scrolling */
}

.panel-col {
    display: flex;
    flex-direction: column;
    gap: 12px;
    min-height: 0;
}

.panel-col-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.panel-col-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.panel-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow: hidden;
}

.panel-toolbar {
    padding: 8px 16px;
    background: rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 8px;
    justify-content: space-between;
}

.panel-actions-left, .panel-actions-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.panel-editor-area {
    flex-grow: 1;
    position: relative;
    min-height: 0;
}

/* Custom Textareas */
.textarea-editor {
    width: 100%;
    height: 100%;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    line-height: 1.5;
    padding: 16px;
    resize: none;
    outline: none;
}

/* Readonly syntax layout */
.pre-viewer {
    width: 100%;
    height: 100%;
    overflow: auto;
    padding: 16px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    line-height: 1.5;
    white-space: pre-wrap;
    word-break: break-all;
}

.btn-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    background: transparent;
    border: none;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-fast);
}

.btn-icon:hover {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-primary);
    border: none;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-family: var(--font-sans);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.2);
    transition: var(--transition-normal);
}

.btn-primary:hover {
    box-shadow: 0 4px 16px rgba(99, 102, 241, 0.35);
    transform: translateY(-1px);
}

/* JSON Hub Tree Viewer */
.json-tree-container {
    padding: 16px;
    overflow: auto;
    height: 100%;
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.json-tree-node {
    margin-left: 16px;
    line-height: 1.6;
}

.json-tree-key {
    color: var(--accent-cyan);
    font-weight: 500;
}

.json-tree-string { color: #ce9178; }
.json-tree-number { color: #b5cea8; }
.json-tree-boolean { color: #569cd6; }
.json-tree-null { color: var(--text-muted); }

.json-tree-toggle {
    cursor: pointer;
    user-select: none;
    color: var(--text-muted);
    font-size: 0.75rem;
    display: inline-block;
    width: 12px;
    transition: transform var(--transition-fast);
}
.json-tree-toggle.collapsed {
    transform: rotate(-90deg);
}

/* Diff Checker specific styles */
.diff-container {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

.diff-output {
    flex-grow: 1;
    display: flex;
    overflow: hidden;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: rgba(0,0,0,0.15);
}

.diff-pane {
    width: 50%;
    overflow-y: auto;
    overflow-x: auto;
    display: flex;
    flex-direction: column;
}

.diff-pane:first-child {
    border-right: 1px solid var(--border-color);
}

.diff-line {
    display: flex;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    line-height: 1.6;
    white-space: pre;
}

.diff-line-number {
    width: 45px;
    text-align: right;
    padding-right: 12px;
    color: var(--text-muted);
    user-select: none;
    border-right: 1px solid rgba(255,255,255,0.03);
    background: rgba(0,0,0,0.05);
}

.diff-line-content {
    padding-left: 12px;
    flex-grow: 1;
}

.diff-added {
    background: rgba(16, 185, 129, 0.12);
}
.diff-added .diff-line-content {
    color: #a7f3d0;
}
.diff-removed {
    background: rgba(244, 63, 94, 0.12);
}
.diff-removed .diff-line-content {
    color: #fecdd3;
}

/* SVG Editor */
.svg-preview-box {
    flex-grow: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 20px 20px;
    position: relative;
    overflow: auto;
}

.svg-preview-box svg {
    max-width: 80%;
    max-height: 80%;
    filter: drop-shadow(0 8px 24px rgba(0,0,0,0.35));
}

.svg-preview-grid-toggle {
    position: absolute;
    bottom: 12px;
    right: 12px;
}

/* Crypto Hub / Lab Styles */
.lab-grid {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 24px;
    flex-grow: 1;
    min-height: 0;
}

.lab-sidebar {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.lab-tab-btn {
    width: 100%;
    padding: 12px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-family: var(--font-sans);
    text-align: left;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
}

.lab-tab-btn:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

.lab-tab-btn.active {
    border-color: var(--accent-indigo);
    background: rgba(99, 102, 241, 0.1);
    color: var(--text-primary);
    box-shadow: var(--shadow-glow-indigo);
}

.lab-content {
    display: flex;
    flex-direction: column;
    gap: 16px;
    min-height: 0;
}

/* Custom Controls for Tools */
.control-row {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    background: rgba(0,0,0,0.1);
    padding: 12px 16px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.control-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

select, input[type="text"], input[type="number"], input[type="password"] {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    outline: none;
    font-family: var(--font-sans);
    font-size: 0.85rem;
    transition: var(--transition-fast);
}

select:focus, input:focus {
    border-color: var(--border-active);
    box-shadow: var(--shadow-glow-indigo);
}

input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    background: var(--border-color);
    border-radius: 3px;
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-indigo);
    cursor: pointer;
    transition: var(--transition-fast);
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.5);
}

/* Generators layouts */
.generators-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    flex-grow: 1;
}

.generator-section-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.generator-section-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
}

.generator-output-box {
    flex-grow: 1;
    min-height: 120px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 12px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    overflow-y: auto;
    position: relative;
}

/* Image Optimizer Styles */
.image-opt-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    flex-grow: 1;
}

.image-preview-panel {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: rgba(0,0,0,0.15);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.image-preview-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 16px;
    min-height: 250px;
}

.preview-img-tag {
    max-width: 100%;
    max-height: 300px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
}

.image-stat-row {
    padding: 12px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
}

/* Floating Command Palette Overlay */
.cmd-palette-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(4, 7, 15, 0.8);
    backdrop-filter: blur(8px);
    display: none;
    align-items: flex-start;
    justify-content: center;
    padding-top: 15vh;
    z-index: 100;
    animation: fadeInOverlay 0.2s ease-out;
}

.cmd-palette-overlay.active {
    display: flex;
}

@keyframes fadeInOverlay {
    from { opacity: 0; }
    to { opacity: 1; }
}

.cmd-palette {
    width: 100%;
    max-width: 600px;
    background: rgba(13, 20, 38, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-lg);
    box-shadow: 0 24px 48px -12px rgba(0, 0, 0, 0.6), var(--shadow-glow-indigo);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: scaleUp 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes scaleUp {
    from { transform: scale(0.95) translateY(-10px); }
    to { transform: scale(1) translateY(0); }
}

.cmd-palette-input-wrapper {
    display: flex;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.cmd-palette-input-wrapper i {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-right: 12px;
}

.cmd-palette-input {
    flex-grow: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 1.1rem;
    outline: none;
}

.cmd-palette-results {
    max-height: 350px;
    overflow-y: auto;
    padding: 8px;
}

.cmd-result-item {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: var(--transition-fast);
}

.cmd-result-item:hover, .cmd-result-item.selected {
    background: rgba(255,255,255,0.06);
}

.cmd-result-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.cmd-result-icon {
    width: 32px;
    height: 32px;
    background: rgba(255,255,255,0.04);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-indigo);
}

.cmd-result-name {
    font-weight: 600;
    font-size: 0.95rem;
}

.cmd-result-desc {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.cmd-result-badge {
    font-size: 0.75rem;
    color: var(--text-muted);
    background: rgba(255,255,255,0.04);
    padding: 2px 8px;
    border-radius: 12px;
}

.cmd-result-item:hover .cmd-result-icon, .cmd-result-item.selected .cmd-result-icon {
    background: var(--gradient-primary);
    color: var(--text-primary);
}

/* Toast System */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 1000;
}

.toast {
    background: rgba(13, 20, 38, 0.9);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--accent-indigo);
    border-radius: var(--radius-md);
    padding: 14px 20px;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 500;
    box-shadow: var(--shadow-lg), 0 4px 20px rgba(0,0,0,0.3);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 250px;
    max-width: 400px;
    animation: slideInToast 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    transition: var(--transition-normal);
}

.toast.toast-success { border-left-color: var(--accent-emerald); }
.toast.toast-error { border-left-color: var(--accent-rose); }
.toast.toast-warning { border-left-color: var(--accent-amber); }

@keyframes slideInToast {
    from { transform: translateX(100%) translateY(10px); opacity: 0; }
    to { transform: translateX(0) translateY(0); opacity: 1; }
}

.toast.fade-out {
    opacity: 0;
    transform: translateY(-10px);
}

/* responsive media queries */
@media (max-width: 1024px) {
    .panel-grid-2, .generators-layout, .image-opt-layout {
        grid-template-columns: 1fr;
    }
    .panel-col {
        height: auto;
    }
    .textarea-editor, .pre-viewer, .json-tree-container {
        height: 250px;
    }
    .lab-grid {
        grid-template-columns: 1fr;
    }
    .lab-sidebar {
        flex-direction: row;
        overflow-x: auto;
        padding-bottom: 8px;
    }
    .lab-tab-btn {
        width: auto;
        white-space: nowrap;
    }
}

@media (max-width: 768px) {
    .app-container {
        flex-direction: column;
    }
    .sidebar {
        width: 100%;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    .sidebar-search-btn {
        display: none;
    }
    .sidebar-nav {
        display: flex;
        flex-direction: row;
        overflow-x: auto;
        padding: 12px 16px;
        gap: 12px;
        scroll-behavior: smooth;
        -webkit-overflow-scrolling: touch;
    }
    .nav-section {
        display: contents;
    }
    .nav-section-title {
        display: none;
    }
    .nav-links {
        display: flex;
        flex-direction: row;
        gap: 8px;
    }
    .nav-item-btn {
        width: auto;
        white-space: nowrap;
        flex-shrink: 0;
        padding: 8px 12px;
        font-size: 0.85rem;
    }
    .sidebar-footer {
        display: none;
    }
    
    /* Layout adjustments for screens on mobile */
    .main-header {
        height: auto;
        padding: 16px;
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    .content-pane {
        padding: 16px;
    }
    .dashboard-hero {
        padding: 20px;
        margin-bottom: 20px;
    }
    .hero-title {
        font-size: 1.6rem;
    }
    .hero-subtitle {
        font-size: 0.9rem;
    }
    .drop-zone-card {
        padding: 24px 16px;
    }
    .drop-zone-subtitle {
        display: none; /* Hide long subtitle to save mobile space */
    }
    .tools-cards-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 16px;
    }
    .control-row {
        padding: 12px;
        gap: 12px;
    }
    .diff-output {
        overflow-x: auto;
    }
    .diff-pane {
        min-width: 320px;
    }
    .lab-tab-btn {
        flex-shrink: 0;
    }
    .generator-section-card {
        grid-column: auto !important;
    }
}

/* Dashboard Homepage Hero Layout */
.dashboard-hero {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    padding: 32px;
    background: radial-gradient(circle at top right, rgba(99, 102, 241, 0.1), transparent 50%), var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    margin-bottom: 32px;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-glow-indigo);
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(16, 185, 129, 0.12);
    border: 1px solid rgba(16, 185, 129, 0.25);
    color: var(--accent-emerald);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}
.hero-title {
    font-size: 2.2rem;
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.8px;
    background: linear-gradient(135deg, #ffffff 30%, var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.hero-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    max-width: 750px;
    line-height: 1.6;
}

/* RegEx results list styling */
.regex-match-item {
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 12px;
    margin-bottom: 12px;
    font-family: var(--font-sans);
}
.regex-match-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 6px;
}
.regex-match-val {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent-emerald);
    background: rgba(16, 185, 129, 0.05);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    display: inline-block;
    word-break: break-all;
}
.regex-group-title {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    margin-top: 8px;
    margin-bottom: 4px;
    font-weight: 600;
}
.regex-group-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.regex-group-item {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--accent-cyan);
    padding-left: 8px;
    border-left: 2px solid var(--accent-indigo);
}