:root {
    /* Light Theme Variables */
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --bg-color: #f3f4f6;
    --sidebar-bg: #ffffff;
    --card-bg: #ffffff;
    --text-main: #111827;
    --text-muted: #6b7280;
    --border-color: #e5e7eb;
    --input-bg: #f9fafb;
    --success: #10b981;
    --danger: #ef4444;
    --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);
    --font-main: 'Inter', sans-serif;
    --transition: all 0.2s ease;
}

[data-theme="dark"] {
    --primary-color: #818cf8;
    --primary-hover: #6366f1;
    --bg-color: #0f172a;
    --sidebar-bg: #1e293b;
    --card-bg: #1e293b;
    --text-main: #f3f4f6;
    --text-muted: #94a3b8;
    /* Fixed typo from previous version if any */
    --border-color: #334155;
    --input-bg: #0f172a;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
}

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

a {
    text-decoration: none;
    color: inherit;
}

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

/* Custom Modern Scrollbar */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--border-color) transparent;
}

*::-webkit-scrollbar {
    width: 6px;
    height: 6px;
    display: block;
    /* Show it again */
}

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

*::-webkit-scrollbar-thumb {
    background-color: var(--border-color);
    border-radius: 3px;
}

*::-webkit-scrollbar-thumb:hover {
    background-color: var(--text-muted);
}

/* Layout */
.app-container {
    display: flex;
    height: 100%;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 1.5rem 1rem;
    transition: width 0.3s ease;
    z-index: 10;
}

.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 2rem;
    padding-left: 0.5rem;
}

.logo-area i {
    color: var(--primary-color);
}

.highlight {
    color: var(--primary-color);
}

.nav-menu {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
    font-family: inherit;
    text-decoration: none;
}

.nav-item i {
    font-size: 1.25rem;
}

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

.nav-item.active {
    background-color: var(--primary-color);
    color: white;
}

.sidebar-footer {
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

/* Theme Toggle */
.theme-toggle-container {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding-left: 0.5rem;
}

.theme-switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 26px;
}

.theme-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 4px;
}

.slider.round {
    border-radius: 34px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
    z-index: 2;
}

input:checked+.slider {
    background-color: var(--primary-color);
}

input:checked+.slider:before {
    transform: translateX(24px);
}

.sun-icon {
    color: #f59e0b;
    font-size: 14px;
}

.moon-icon {
    color: #f3f4f6;
    font-size: 14px;
}

.theme-label {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
}

.top-bar {
    height: 70px;
    background-color: var(--sidebar-bg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
}

.page-title h1 {
    font-size: 1.25rem;
    font-weight: 600;
}

.page-title p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.icon-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: var(--transition);
}

.icon-btn:hover {
    background-color: var(--bg-color);
    color: var(--primary-color);
}

/* Content Area */
.content-area {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
    background-color: var(--bg-color);
}


.tool-section {
    display: none;
    height: 100%;
    animation: fadeIn 0.3s ease;
}

#seo-tools {
    height: auto;
    min-height: 100%;
    padding-bottom: 3rem;
}

.tool-section.active-section {
    display: block;
}

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

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

/* Tool Grid Layout */
.tool-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1.5rem;
    height: 100%;
}

.tool-card {
    background-color: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.tool-card.large {
    grid-column: 1 / 2;
}

.card-header {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h3 {
    font-size: 1rem;
    font-weight: 600;
}

.card-actions {
    display: flex;
    gap: 0.5rem;
}

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

/* Text Tools Specific */
textarea#text-input {
    width: 100%;
    height: 100%;
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    color: var(--text-main);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.95rem;
    resize: none;
    outline: none;
    transition: border-color 0.2s;
}

textarea#text-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.1);
}

.stats-bar {
    padding: 0.75rem 1.5rem;
    background-color: var(--input-bg);
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 1.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.stats-bar span b {
    color: var(--text-main);
}

/* Buttons */
.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background-color: var(--input-bg);
    color: var(--text-main);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.btn-sm:hover {
    background-color: var(--border-color);
}

/* Image Tools */
/* Tabs */
.sub-tabs {
    display: flex;
    gap: 1rem;
    padding-bottom: 1rem;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.sub-tab {
    padding: 0.5rem 1rem;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
}

.sub-tab:hover {
    background-color: var(--input-bg);
}

.sub-tab.active {
    background-color: var(--primary-color);
    color: white;
}

.sub-view {
    display: none;
    height: 100%;
}

.sub-view.active-view {
    display: block;
}

/* Bulk Compressor Styles */
.bulk-container {
    display: flex;
    gap: 1.5rem;
    height: 100%;
}

.bulk-settings {
    width: 320px;
    flex-shrink: 0;
    height: fit-content;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.3s ease;
}

.bulk-settings:hover {
    box-shadow: var(--shadow-md);
}

.bulk-settings .card-body {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    padding: 1.5rem;
}

.bulk-settings .control-group {
    background-color: var(--bg-color);
    padding: 0.75rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.bulk-settings label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    display: block;
}

.bulk-settings select,
.bulk-settings input[type="number"] {
    width: 100%;
    padding: 0.6rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background-color: var(--input-bg);
    color: var(--text-main);
    font-size: 0.95rem;
    transition: border-color 0.2s;
}

.bulk-settings select:focus,
.bulk-settings input[type="number"]:focus {
    border-color: var(--primary-color);
    outline: none;
}

/* Custom Range Slider for Bulk */
.bulk-settings input[type="range"] {
    width: 100%;
    height: 6px;
    background: var(--border-color);
    border-radius: 3px;
    accent-color: var(--primary-color);
    cursor: pointer;
}

.bulk-settings #bulk-quality-val {
    font-weight: 700;
    color: var(--primary-color);
    margin-top: 0.2rem;
}

.bulk-settings #bulk-add-btn {
    padding: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 0.5rem;
}

.bulk-settings #bulk-start-btn {
    padding: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background-color: var(--success);
    /* Green for start action? or Primary */
    border-color: var(--success);
    color: white;
}

.bulk-settings #bulk-start-btn:hover {
    filter: brightness(1.1);
}

.bulk-queue {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.bulk-queue .card-body {
    padding: 0;
    overflow-y: auto;
    flex: 1;
    /* Take remaining height */
    min-height: 0;
    /* Important for scrolling */
}

.empty-queue {
    padding: 3rem;
    text-align: center;
    color: var(--text-muted);
}

.queue-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.queue-item:last-child {
    border-bottom: none;
}

.q-thumb {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: 6px;
    background-color: var(--input-bg);
}

.q-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    min-width: 0;
}

.q-name {
    font-size: 0.9rem;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.q-meta {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.q-status {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--primary-color);
}

.q-status.done {
    color: var(--success);
}

.q-actions {
    display: flex;
    gap: 0.5rem;
}

/* Progress Bar */
.progress-bar {
    height: 4px;
    background-color: var(--input-bg);
    width: 100%;
    overflow: hidden;
}

.progress-bar.hidden {
    display: none;
}

.progress-fill {
    height: 100%;
    background-color: var(--primary-color);
    width: 0%;
    transition: width 0.3s ease;
}

.disabled-ui {
    opacity: 0.6;
    pointer-events: none;
    cursor: not-allowed;
}

/* Image Tools Specific Styles */

/* Upload Area */
.upload-area {
    width: 100%;
    height: 100%;
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    background-color: var(--card-bg);
}

.upload-area:hover {
    border-color: var(--primary-color);
    background-color: var(--input-bg);
}

.upload-area i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.upload-area h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.upload-area p {
    color: var(--text-muted);
}

/* Image Editor Layout */
.image-editor-container {
    display: flex;
    height: 100%;
    gap: 1.5rem;
}

.editor-sidebar {
    width: 280px;
    background-color: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    overflow-y: auto;
}

.editor-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    background-color: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.canvas-wrapper {
    flex: 1;
    background-color: var(--input-bg);
    background-image: radial-gradient(var(--border-color) 1px, transparent 1px);
    background-size: 20px 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 2rem;
}

#image-canvas {
    max-width: 100%;
    max-height: 100%;
    box-shadow: var(--shadow-md);
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 20 20"><rect x="0" y="0" width="10" height="10" fill="%23eee" /><rect x="10" y="10" width="10" height="10" fill="%23eee" /></svg>') repeat;
    /* Checkerboard for transparency */
}

/* Editor Controls */
.editor-group h4 {
    margin-bottom: 1rem;
    font-size: 0.9rem;
    text-transform: uppercase;
    color: var(--text-muted);
}

.tool-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    background: transparent;
    border-radius: 8px;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.85rem;
    transition: var(--transition);
}

.tool-btn:hover,
.tool-btn.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.editor-panel {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.editor-panel.hidden {
    display: none;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.control-group label {
    font-size: 0.85rem;
    font-weight: 500;
}

.control-group input[type="range"] {
    width: 100%;
}

.control-group input[type="number"] {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background-color: var(--input-bg);
    color: var(--text-main);
}

.control-group.box-check {
    flex-direction: row;
    align-items: center;
}

.btn-full {
    width: 100%;
    padding: 0.6rem;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background-color: var(--input-bg);
    color: var(--text-main);
    cursor: pointer;
    font-size: 0.9rem;
    transition: var(--transition);
}

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

.btn-full:hover {
    opacity: 0.9;
}

.editor-actions {
    padding: 1rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.save-group {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.save-group select,
.save-group input[type="range"] {
    padding: 0.5rem;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background-color: var(--input-bg);
    color: var(--text-main);
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 0.6rem 1.2rem;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

.btn-secondary {
    background: transparent;
    color: var(--text-muted);
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

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

/* CSS Tools Specific Styles */
.css-generator-layout {
    display: flex;
    flex-direction: column;
    height: 100%;
    gap: 1.5rem;
}

.generator-tabs {
    display: flex;
    gap: 0.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.gen-tab {
    padding: 0.5rem 1rem;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-weight: 500;
    cursor: pointer;
    border-radius: 6px;
    transition: var(--transition);
}

.gen-tab:hover {
    color: var(--text-main);
}

.gen-tab.active {
    background-color: var(--input-bg);
    color: var(--primary-color);
}

.generator-workspace {
    display: flex;
    gap: 2rem;
    flex: 1;
    min-height: 0;
    /* Important for scroll */
}

.gen-controls {
    width: 300px;
    flex-shrink: 0;
    overflow-y: auto;
    padding-right: 0.5rem;
}

.gen-group {
    display: none;
    flex-direction: column;
    gap: 1.5rem;
}

.gen-group.active {
    display: flex;
}

.individual-corners {
    border-left: 2px solid var(--border-color);
    padding-left: 1rem;
    margin-top: 0.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.gen-preview-area {
    flex: 1;
    background-color: var(--input-bg);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
    background-image: radial-gradient(var(--border-color) 1px, transparent 1px);
    background-size: 20px 20px;
}

#css-preview-box {
    width: 200px;
    height: 200px;
    background-color: var(--primary-color);
    /* Default */
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    transition: all 0.2s ease;
}

.gen-output {
    background-color: #1e1e1e;
    color: #e5e5e5;
    padding: 1rem;
    border-radius: 8px;
    font-family: 'JetBrains Mono', monospace;
}

.output-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.output-header h4 {
    font-size: 0.8rem;
    text-transform: uppercase;
    color: #888;
}

.gen-output pre {
    margin: 0;
    white-space: pre-wrap;
    word-break: break-all;
}

.gen-output code {
    font-size: 0.9rem;
    color: #a5b4fc;
}

/* QR Tools Specific Styles */
.qr-generator-layout {
    display: flex;
    gap: 2rem;
    height: 100%;
}

.qr-controls {
    width: 350px;
    flex-shrink: 0;
    overflow-y: auto;
    padding-bottom: 2rem;
    /* Spacing for scroll */
}

/* Reusing common control group style but ensuring it fits here */
.control-group {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    margin-bottom: 1.25rem;
}

.control-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
}

.control-group textarea,
.control-group select,
.control-group input[type="number"],
.control-group input[type="text"] {
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    padding: 0.75rem;
    border-radius: 6px;
    font-size: 0.95rem;
    color: var(--text-main);
    transition: all 0.2s ease;
    width: 100%;
}

.control-group textarea:focus,
.control-group select:focus,
.control-group input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    background-color: var(--card-bg);
    outline: none;
}

.control-group.box-check {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
}

.control-group.box-check input {
    width: 80px;
    /* Fixed width for small numbers */
}

/* Range Slider Polishing */
input[type="range"] {
    width: 100%;
    height: 6px;
    background: var(--border-color);
    border-radius: 3px;
    accent-color: var(--primary-color);
    cursor: pointer;
    margin-top: 0.5rem;
}

/* Button Polish */
.btn-full.primary {
    width: 100%;
    background-color: var(--primary-color);
    color: white;
    padding: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    transition: all 0.2s;
    border: none;
    margin-top: 1rem;
}

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

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

.qr-preview-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    padding: 2rem;
    background-color: var(--input-bg);
    /* Subtle differentiation */
    border-radius: 12px;
    border: 1px dashed var(--border-color);
}

.qr-output-area {
    width: 320px;
    height: 320px;
    background-color: white;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
    /* Ensure no overflow */
}

.qr-output-area img {
    max-width: 100%;
    max-height: 100%;
    width: auto !important;
    height: auto !important;
    object-fit: contain;
    display: block;
}

.qr-output-area:hover {
    transform: none;
    /* Removed scale effect to prevent layout shifting */
}

#qr-placeholder-text {
    color: var(--text-muted);
    font-style: italic;
    text-align: center;
}

/* Helper Tooltips */
.label-flex {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.help-icon {
    font-size: 1rem;
    color: var(--text-muted);
    cursor: help;
    position: relative;
    transition: color 0.2s;
}

.help-icon:hover {
    color: var(--primary-color);
}

/* Tooltip Popup */
.help-icon[data-tooltip]:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 150%;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--text-main);
    color: var(--bg-color);
    padding: 0.5rem 0.8rem;
    border-radius: 6px;
    font-size: 0.75rem;
    white-space: normal;
    width: max-content;
    max-width: 200px;
    z-index: 100;
    box-shadow: var(--shadow-md);
    line-height: 1.4;
    font-weight: 500;
    pointer-events: none;
    text-align: center;
}

.help-icon[data-tooltip]:hover::before {
    content: '';
    position: absolute;
    bottom: 120%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: var(--text-main);
}

.sidebar-tools {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background-color: var(--card-bg);
    /* Ensure proper bg */
}

.scrollable-actions {
    overflow-y: auto;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.action-group h4 {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 0.8rem;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.3rem;
    display: inline-block;
}

.btn-grid {
    display: grid;
    /* Force 2 columns for better alignment, or 1 if very narrow */
    grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
    gap: 0.75rem;
}

.action-btn {
    padding: 0.75rem 0.5rem;
    border: 1px solid var(--border-color);
    background-color: var(--bg-color);
    /* Slight contrast from card */
    color: var(--text-main);
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.2s ease;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.action-btn:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

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

/* Ensure Textarea looks good */
textarea {
    width: 100%;
    height: 100%;
    resize: none;
    border: none;
    background: transparent;
    color: var(--text-main);
    font-family: 'Consolas', 'Monaco', monospace;
    /* Better font */
    font-size: 0.9rem;
    line-height: 1.6;
    outline: none;
    padding: 1.5rem;
}

/* =========================================
   Newly Added CSS for Advanced Generators
   ========================================= */

/* Shape Grids */
.shape-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
}

.btn-grid-xs {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
}

/* Special Buttons (Neumorphism & Clip Path) */
.neu-shape-btn,
.clip-btn,
.btn-sm {
    padding: 0.6rem 0.4rem;
    font-size: 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--input-bg);
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.neu-shape-btn:hover,
.clip-btn:hover,
.btn-sm:hover {
    border-color: var(--primary-color);
    background-color: var(--input-bg);
    color: var(--text-main);
}

.neu-shape-btn.active,
.clip-btn.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* Advanced Shadows Group */
.advanced-shadows {
    display: flex;
    gap: 0.5rem;
    margin-top: -0.5rem;
    padding-left: 0.5rem;
    border-left: 2px solid var(--border-color);
}

.advanced-shadows label {
    font-size: 0.75rem;
}

.advanced-shadows input[type="color"] {
    height: 30px;
}

/* Interactive Clip Path Editor */
#clip-handles-container {
    position: absolute;
    width: 200px;
    height: 200px;
    pointer-events: none;
    /* Let clicks pass through to box if needed, handles will re-enable pointer-events */
    display: none;
    /* Hidden by default */
    z-index: 10;
}

.clip-handle {
    position: absolute;
    width: 14px;
    height: 14px;
    background: white;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    cursor: move;
    pointer-events: auto;
    /* Re-enable clicks for handles */
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    transition: background 0.2s, transform 0.1s;
}

.clip-handle:hover {
    background: var(--primary-color);
    transform: translate(-50%, -50%) scale(1.2);
}

.clip-handle:active {
    background: var(--primary-color);
    border-color: white;
}

/* QR Tabs */
.qr-tabs {
    display: flex;
    gap: 15px;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 20px;
    padding-bottom: 0;
}

.qr-tab-btn {
    background: none;
    border: none;
    padding: 10px 15px;
    color: var(--text-muted);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.95rem;
    position: relative;
    transition: all 0.3s ease;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
}

/* QR Vertical Sidebar Layout */
.qr-edit-flex {
    display: flex;
    gap: 20px;
    align-items: stretch;
}

.qr-tabs-sidebar {
    display: flex;
    flex-direction: column;
    width: 160px;
    flex-shrink: 0;
    border-right: 1px solid var(--border-color);
    padding-right: 10px;
    gap: 5px;
}

.qr-tab-btn {
    background: transparent;
    border: none;
    padding: 12px 15px;
    color: var(--text-muted);
    cursor: pointer;
    font-weight: 500;
    font-size: 0.9rem;
    text-align: left;
    border-radius: 8px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 10px;
}

.qr-tab-btn:hover {
    color: var(--text-main);
    background: var(--input-bg);
}

.qr-tab-btn.active {
    background: var(--input-bg);
    color: var(--primary-color);
    font-weight: 600;
    position: relative;
}

.qr-tab-btn.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    height: 60%;
    width: 3px;
    background: var(--primary-color);
    border-radius: 0 4px 4px 0;
}

.qr-form-content {
    flex: 1;
    min-width: 0;
}

.qr-settings-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px dashed var(--border-color);
}

@media (max-width: 600px) {
    .qr-edit-flex {
        flex-direction: column;
    }

    .qr-tabs-sidebar {
        flex-direction: row;
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        padding-bottom: 10px;
        margin-bottom: 15px;
    }

    .qr-tab-btn.active::before {
        bottom: 0;
        top: auto;
        left: 50%;
        transform: translateX(-50%);
        height: 3px;
        width: 60%;
        border-radius: 4px 4px 0 0;
    }
}

/* QR Form Styling */
.qr-mode-group .control-group {
    margin-bottom: 20px;
}

.qr-mode-group input,
.qr-mode-group textarea {
    width: 100%;
    padding: 12px;
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-main);
    font-size: 0.95rem;
    transition: border-color 0.2s;
}

.qr-mode-group input:focus,
.qr-mode-group textarea:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* Side-by-Side Layout for QR Generator */
.qr-generator-layout {
    display: flex;
    gap: 40px;
    align-items: flex-start;
    padding: 10px;
}

.qr-controls {
    flex: 1;
    min-width: 0;
    /* Prevent flex overflow */
}

/* Card Styling Override for QR */
.qr-controls .tool-card {
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 0;
}

.qr-controls .card-header {
    margin-bottom: 20px;
    padding: 0;
    border: none;
}

.qr-preview-section {
    width: 380px;
    flex-shrink: 0;
    position: sticky;
    top: 20px;
}

/* Removed duplicate .qr-output-area styles to fix conflicts */

#qr-placeholder-text {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 10px;
}

.qr-actions {
    margin-top: 20px;
    display: flex;
    gap: 10px;
    width: 100%;
}

.qr-actions button {
    flex: 1;
}

@media (max-width: 900px) {
    .qr-generator-layout {
        flex-direction: column;
        gap: 30px;
    }

    .qr-preview-section {
        width: 100%;
        position: static;
    }
}

/* ===========================


/* ===========================
   6. Calculator Tools
   =========================== */
/* ===========================
   6. Calculator Tools
   =========================== */
.calc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    padding: 1rem;
}

.calc-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2.5rem 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.calc-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.calc-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.calc-card:hover::before {
    opacity: 1;
}

.calc-card i {
    font-size: 3rem;
    margin-bottom: 1.2rem;
    padding: 1rem;
    background: var(--input-bg);
    border-radius: 50%;
    transition: transform 0.3s ease;
}

.calc-card:hover i {
    transform: scale(1.1) rotate(5deg);
    background: rgba(99, 102, 241, 0.1);
}

.calc-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-main);
}

.calc-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* Tool Views */
.calc-tool-view {
    max-width: 700px;
    margin: 2rem auto 8rem auto;
    background: var(--card-bg);
    border-radius: 24px;
    padding: 2.5rem;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    animation: slideUpFade 0.4s ease;
}

@keyframes slideUpFade {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

.sub-tool-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.calc-input,
.calc-select {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 1.5px solid var(--border-color);
    background: var(--input-bg);
    border-radius: 12px;
    color: var(--text-main);
    font-size: 1rem;
    transition: all 0.2s ease;
    font-family: inherit;
}

.calc-input:hover,
.calc-select:hover {
    border-color: var(--text-muted);
}

.calc-input:focus,
.calc-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.15);
    background: var(--card-bg);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.75rem;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-main);
    opacity: 0.9;
}

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

.input-group .calc-input {
    flex: 2;
}

.input-group .calc-select {
    flex: 1;
    min-width: 100px;
}

.calc-result {
    margin-top: 2rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(168, 85, 247, 0.1));
    color: var(--primary-color);
    border-radius: 16px;
    font-weight: 700;
    text-align: center;
    font-size: 1.25rem;
    border: 1px solid rgba(99, 102, 241, 0.2);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.02);
}

/* Inline Calc (Percentage / Random) */
.inline-calc {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    padding: 1.5rem;
    background: var(--input-bg);
    border-radius: 16px;
    border: 1px solid var(--border-color);
}

.calc-input-sm {
    width: 120px;
    padding: 0.6rem 0.75rem;
    border: 1.5px solid var(--border-color);
    background: var(--card-bg);
    border-radius: 8px;
    color: var(--text-main);
    text-align: center;
    font-weight: 600;
}

.calc-result-sm {
    margin-top: 1rem;
    font-weight: 700;
    color: var(--success);
    font-size: 1.2rem;
    padding: 0.5rem 1rem;
    background: rgba(16, 185, 129, 0.1);
    border-radius: 8px;
    display: inline-block;
}

/* Tabs inside calculators */
.tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    background: var(--input-bg);
    padding: 0.5rem;
    border-radius: 12px;
}

.tab-btn {
    flex: 1;
    padding: 0.75rem 1rem;
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.2s ease;
    text-align: center;
}

.tab-btn:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.05);
}

.tab-btn.active {
    color: var(--primary-color);
    background: var(--card-bg);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.radio-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    background: var(--input-bg);
    padding: 1.25rem;
    border-radius: 12px;
}

.radio-group label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    font-weight: 500;
}

.hidden {
    display: none !important;
}

@media (max-width: 768px) {
    .calc-grid {
        grid-template-columns: 1fr;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .tabs {
        flex-direction: column;
    }

    .inline-calc {
        flex-direction: column;
        align-items: flex-start;
    }


    .calc-input-sm {
        width: 100%;
    }
}

/* Back Button Specifics */
/* Standardized Back Buttons */
#back-to-dashboard,
#back-to-seo {
    display: inline-flex;
    /* Controlled by JS to be inline-flex or none */
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    margin-bottom: 1rem;
    margin-top: 1rem;
    margin-left: 0.5rem;
    /* Safe distance from sidebar */
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

#back-to-dashboard:hover,
#back-to-seo:hover {
    background: var(--input-bg);
    color: var(--text-main);
    border-color: var(--text-muted);
    transform: translateX(-3px);
}

#back-to-dashboard i,
#back-to-seo i {
    font-size: 1.1rem;
}


/* ===========================
/* ===========================
   7. SEO Tools Styles
   =========================== */
#seo-tools {
    overflow-y: visible !important;
    padding-bottom: 200px !important;
    /* Extra space to scroll past */
    height: auto !important;
    min-height: 100%;
}

#seo-tools .calc-tool-view {
    max-height: calc(100vh - 300px);
    /* Shorter to fit on screen */
    overflow-y: auto;
    padding-bottom: 2rem;
    scrollbar-width: thin;
    margin-bottom: 0;
    /* Let padding handle spacing */
}

#seo-tools .calc-tool-view::-webkit-scrollbar {
    width: 8px;
}

#seo-tools .calc-tool-view::-webkit-scrollbar-thumb {
    background-color: var(--border-color);
    border-radius: 4px;
}

#seo-tool-views {
    padding-bottom: 0;
}

.seo-preview-box {
    background: #fff;
    border: 1px solid #dfe1e5;
    border-radius: 8px;
    padding: 15px;
    font-family: Arial, sans-serif;
    max-width: 600px;
    margin-bottom: 20px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.code-output-box {
    position: relative;
    background: var(--input-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.code-output-box textarea {
    width: 100%;
    background: transparent;
    border: none;
    resize: none;
    outline: none;
    color: var(--text-color);
    padding: 10px;
}

/* Table Styles */
.seo-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}

.seo-table th,
.seo-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.seo-table th {
    background: var(--bg-secondary);
    font-weight: 600;
}

/* Open Graph Preview */
.og-card-preview {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    max-width: 500px;
    background: var(--bg-secondary);
    cursor: pointer;
}

.og-image-area {
    width: 100%;
    height: 260px;
    background: #333;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
}

.og-text-area {
    padding: 12px 16px;
    background: var(--card-bg);
    border-top: 1px solid var(--border-color);
}

.og-domain {
    text-transform: uppercase;
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-bottom: 4px;
}

.og-title {
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--text-color);
}

.og-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Page Analyzer Results */
.issue-tag {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    margin-right: 5px;
    margin-bottom: 5px;
}

.issue-high {
    background: rgba(239, 68, 68, 0.2);
    color: #ef4444;
}

.issue-medium {
    background: rgba(245, 158, 11, 0.2);
    color: #f59e0b;
}

/* ===========================
   8. Responsive Design
   =========================== */
@media (max-width: 900px) {
    .app-container {
        position: relative;
    }

    /* Sidebar Mobile */
    .sidebar {
        position: fixed;
        left: -280px;
        top: 0;
        bottom: 0;
        width: 260px;
        height: 100vh;
        z-index: 1000;
        box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
        transition: left 0.3s ease;
    }

    .sidebar.active {
        left: 0;
    }

    /* Overlay */
    .sidebar-overlay {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 999;
        display: none;
        backdrop-filter: blur(2px);
    }

    .sidebar-overlay.active {
        display: block;
    }

    /* Top Bar */
    #mobile-menu-btn {
        display: inline-flex !important;
    }

    .top-bar {
        padding: 0 1rem;
    }

    /* Grids */
    .calc-grid,
    .form-grid {
        grid-template-columns: 1fr !important;
    }

    .tool-grid {
        grid-template-columns: 1fr;
    }

    /* Content Area */
    .content-area {
        padding: 1rem;
    }

    /* Calculator Views */
    .calc-tool-view {
        padding: 1.5rem;
        margin-top: 1rem;
        border-radius: 16px;
    }

    .inline-calc {
        flex-direction: column;
        align-items: stretch;
    }

    .inline-calc input,
    .inline-calc button {
        width: 100%;
    }

    /* Input/Output Areas */
    .io-area {
        flex-direction: column;
    }

    /* Buttons */
    .card-actions {
        flex-wrap: wrap;
    }

    /* SEO Tools */
    .seo-preview-box {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .page-title h1 {
        font-size: 1.1rem;
    }

    .page-title p {
        font-size: 0.8rem;
        /* Hide description on very small screens if needed, or keep small */
        display: none;
    }
}