/* ==========================================================================
   FlexDocu Design System: Executive Formal / Institutional
   Universal Document, Image & PDF Power Tools Suite
   Light & Dark Mode | English (LTR) & Arabic (RTL)
   Strictly Zero AI Emojis / Zero Neon Cliches / Corporate Slate Palette
   ========================================================================== */

:root {
    --bg-main: #f8fafc;
    --bg-surface: #ffffff;
    --bg-surface-subtle: #f1f5f9;
    --border-subtle: #e2e8f0;
    --border-medium: #cbd5e1;
    --border-dark: #94a3b8;

    --text-primary: #0f172a;
    --text-secondary: #334155;
    --text-muted: #64748b;

    --brand-navy: #0f2e59;
    --brand-navy-hover: #1e3a8a;
    --brand-navy-light: #eff6ff;
    --brand-navy-border: #bfdbfe;

    --support-bg: #fff1f2;
    --support-border: #fecdd3;
    --support-text: #be123c;
    --support-hover-bg: #ffe4e6;

    --badge-pdf-bg: #fef2f2;
    --badge-pdf-text: #991b1b;
    --badge-pdf-border: #fecaca;

    --badge-word-bg: #eff6ff;
    --badge-word-text: #1e40af;
    --badge-word-border: #bfdbfe;

    --badge-sheet-bg: #f0fdf4;
    --badge-sheet-text: #166534;
    --badge-sheet-border: #bbf7d0;

    --badge-slide-bg: #fff7ed;
    --badge-slide-text: #9a3412;
    --badge-slide-border: #fed7aa;

    --badge-img-bg: #f5f3ff;
    --badge-img-text: #5b21b6;
    --badge-img-border: #ddd6fe;

    --badge-text-bg: #f8fafc;
    --badge-text-text: #475569;
    --badge-text-border: #cbd5e1;

    --success-bg: #065f46;
    --success-hover: #047857;
    --success-text: #ffffff;

    --font-en: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-ar: 'Cairo', -apple-system, BlinkMacSystemFont, 'Segoe UI', Tahoma, sans-serif;
    
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.06);
}

[data-theme="dark"] {
    --bg-main: #0b0f19;
    --bg-surface: #111827;
    --bg-surface-subtle: #1e293b;
    --border-subtle: #1f293d;
    --border-medium: #334155;
    --border-dark: #475569;

    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;

    --brand-navy: #2563eb;
    --brand-navy-hover: #3b82f6;
    --brand-navy-light: #1e293b;
    --brand-navy-border: #2e4374;

    --support-bg: #2a1215;
    --support-border: #4c1d24;
    --support-text: #fb7185;
    --support-hover-bg: #38181c;

    --badge-pdf-bg: #2e1014;
    --badge-pdf-text: #f87171;
    --badge-pdf-border: #4c1d24;

    --badge-word-bg: #10213d;
    --badge-word-text: #60a5fa;
    --badge-word-border: #1e3a6a;

    --badge-sheet-bg: #0c2518;
    --badge-sheet-text: #4ade80;
    --badge-sheet-border: #14532d;

    --badge-slide-bg: #2d1808;
    --badge-slide-text: #fb923c;
    --badge-slide-border: #7c2d12;

    --badge-img-bg: #201338;
    --badge-img-text: #c084fc;
    --badge-img-border: #4c1d95;

    --badge-text-bg: #1e293b;
    --badge-text-text: #cbd5e1;
    --badge-text-border: #334155;

    --success-bg: #059669;
    --success-hover: #10b981;
    --success-text: #ffffff;

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
}

html {
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
    scroll-behavior: smooth;
    overflow-x: hidden;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.15s ease;
}

body {
    font-family: var(--font-en);
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    -webkit-tap-highlight-color: transparent;
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
}

button, a, input, select, textarea {
    touch-action: manipulation;
}

html[dir="rtl"] body {
    font-family: var(--font-ar);
    direction: rtl;
    text-align: right;
}

html[dir="ltr"] body {
    direction: ltr;
    text-align: left;
}

/* Site Header */
.site-header {
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border-subtle);
    padding: 0.85rem 0;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    max-width: 1150px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.brand-logo-wrap {
    width: 44px;
    height: 44px;
    background-color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-medium);
    padding: 4px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
    flex-shrink: 0;
}

[data-theme="dark"] .brand-logo-wrap {
    background-color: #0d1525;
    border-color: #24344d;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
}

.brand-logo-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.brand-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.brand-subtitle {
    font-size: 0.78rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* Header Controls */
.header-controls {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    flex-wrap: wrap;
}

.privacy-badge-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.78rem;
    font-weight: 600;
    padding: 0.4rem 0.7rem;
    border-radius: 9999px;
    background-color: #f0fdf4;
    color: #15803d;
    border: 1px solid #bbf7d0;
    cursor: pointer;
}

[data-theme="dark"] .privacy-badge-btn {
    background-color: #092615;
    color: #4ade80;
    border-color: #166534;
}

.history-toggle-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-family: inherit;
    font-size: 0.78rem;
    font-weight: 600;
    padding: 0.4rem 0.7rem;
    background-color: var(--bg-surface-subtle);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
}

.history-toggle-btn:hover {
    background-color: var(--border-subtle);
    color: var(--text-primary);
}

.history-badge {
    background-color: var(--brand-navy);
    color: #ffffff;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.05rem 0.4rem;
    border-radius: 9999px;
}

.support-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.78rem;
    font-weight: 600;
    padding: 0.4rem 0.75rem;
    border-radius: var(--radius-sm);
    background-color: var(--support-bg);
    color: var(--support-text);
    border: 1px solid var(--support-border);
    text-decoration: none;
    transition: all 0.15s ease;
}

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

.icon-toggle-btn {
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-surface-subtle);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
}

.icon-toggle-btn:hover {
    background-color: var(--border-subtle);
    color: var(--text-primary);
}

[data-theme="light"] .theme-icon-sun { display: none; }
[data-theme="light"] .theme-icon-moon { display: block; }
[data-theme="dark"] .theme-icon-sun { display: block; }
[data-theme="dark"] .theme-icon-moon { display: none; }

/* Language Dropdown */
.lang-dropdown-wrap {
    position: relative;
    display: inline-block;
}

.lang-toggle-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-family: inherit;
    font-size: 0.78rem;
    font-weight: 600;
    padding: 0.4rem 0.7rem;
    background-color: var(--bg-surface-subtle);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.15s ease;
}

.lang-toggle-btn:hover,
.lang-toggle-btn[aria-expanded="true"] {
    background-color: var(--border-subtle);
    color: var(--text-primary);
    border-color: var(--border-dark);
}

.lang-caret {
    transition: transform 0.2s ease;
}

.lang-toggle-btn[aria-expanded="true"] .lang-caret {
    transform: rotate(180deg);
}

.lang-menu {
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    min-width: 185px;
    background-color: var(--bg-surface);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-md);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.12), 0 8px 10px -6px rgba(0, 0, 0, 0.08);
    padding: 0.35rem 0;
    z-index: 1000;
    display: none;
    max-height: 380px;
    overflow-y: auto;
}

[data-theme="dark"] .lang-menu {
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.5);
    background-color: #111827;
    border-color: #334155;
}

html[dir="rtl"] .lang-menu {
    right: auto;
    left: 0;
}

.lang-menu.open {
    display: block;
    animation: langDropdownFade 0.15s ease-out;
}

@keyframes langDropdownFade {
    from {
        opacity: 0;
        transform: translateY(-4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.lang-menu-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 0.55rem 0.85rem;
    font-size: 0.82rem;
    font-family: inherit;
    font-weight: 500;
    color: var(--text-secondary);
    background: none;
    border: none;
    text-align: left;
    cursor: pointer;
    transition: background-color 0.15s ease, color 0.15s ease;
}

html[dir="rtl"] .lang-menu-item {
    text-align: right;
}

.lang-menu-item:hover {
    background-color: var(--bg-surface-subtle);
    color: var(--text-primary);
}

.lang-menu-item.active {
    color: var(--brand-navy);
    font-weight: 700;
    background-color: var(--brand-navy-light);
}

[data-theme="dark"] .lang-menu-item.active {
    color: #60a5fa;
    background-color: #1e293b;
}

.lang-menu-item-check {
    width: 14px;
    height: 14px;
    opacity: 0;
    color: currentColor;
    flex-shrink: 0;
}

.lang-menu-item.active .lang-menu-item-check {
    opacity: 1;
}

.lang-menu-item-code {
    font-size: 0.72rem;
    color: var(--text-muted);
    text-transform: uppercase;
    margin-inline-start: 0.5rem;
    font-weight: 600;
}

/* Suite Navigation Bar */
.tools-nav {
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border-subtle);
    overflow-x: auto;
    white-space: nowrap;
}

.tools-nav-container {
    max-width: 1150px;
    margin: 0 auto;
    padding: 0.4rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.nav-tool-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    font-family: inherit;
    font-size: 0.82rem;
    font-weight: 600;
    padding: 0.5rem 0.85rem;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.15s ease;
    flex-shrink: 0;
}

.nav-tool-btn:hover {
    background-color: var(--bg-surface-subtle);
    color: var(--text-primary);
}

.nav-tool-btn.active {
    background-color: var(--brand-navy-light);
    color: var(--brand-navy);
    font-weight: 700;
}

[data-theme="dark"] .nav-tool-btn.active {
    background-color: #1e2d4a;
    color: #60a5fa;
}

/* Main Layout */
.main-content {
    flex: 1;
    padding: 2rem 0;
}

.content-wrapper {
    max-width: 1150px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Tool Views */
.tool-view {
    display: none;
}

.tool-view.active {
    display: block;
    animation: fadeIn 0.2s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

.tool-intro {
    margin-bottom: 1.25rem;
}

.tool-intro h2 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.35rem;
}

.tool-intro p {
    font-size: 0.86rem;
    color: var(--text-muted);
}

/* Category Filter Tabs */
.category-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    background-color: var(--bg-surface-subtle);
    padding: 0.35rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
    margin-bottom: 1.5rem;
    max-width: 680px;
}

.tab-btn {
    font-family: inherit;
    font-size: 0.84rem;
    font-weight: 600;
    padding: 0.5rem 0.9rem;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    text-align: center;
}

.tab-btn.active {
    background-color: var(--bg-surface);
    color: var(--text-primary);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--border-subtle);
}

/* Upload Dropzone */
.upload-section {
    margin-bottom: 1.5rem;
}

.dropzone {
    background-color: var(--bg-surface);
    border: 2px dashed var(--border-medium);
    border-radius: var(--radius-lg);
    padding: 3.25rem 1.5rem;
    text-align: center;
    position: relative;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
    margin-bottom: 1.5rem;
}

.dropzone:hover, .dropzone.dragover {
    border-color: var(--brand-navy);
    background-color: var(--bg-surface-subtle);
}

.file-input {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.dropzone-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    pointer-events: none;
}

.dropzone-icon {
    width: 58px;
    height: 58px;
    background-color: var(--brand-navy-light);
    color: var(--brand-navy);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--brand-navy-border);
    margin-bottom: 0.25rem;
}

.dropzone-heading {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
}

.dropzone-sub {
    font-size: 0.86rem;
    color: var(--text-muted);
}

.browse-btn {
    pointer-events: auto;
    font-family: inherit;
    font-size: 0.88rem;
    font-weight: 600;
    color: #ffffff;
    background-color: var(--brand-navy);
    border: 1px solid var(--brand-navy);
    padding: 0.6rem 1.4rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    margin-top: 0.4rem;
    transition: background-color 0.15s ease;
}

.browse-btn:hover {
    background-color: var(--brand-navy-hover);
}

/* Tool Config & Action Cards */
.tool-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    margin-bottom: 2rem;
    overflow: hidden;
}

.tool-card-header {
    padding: 0.9rem 1.25rem;
    background-color: var(--bg-surface-subtle);
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.9rem;
    font-weight: 700;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.tool-card-footer {
    padding: 0.9rem 1.25rem;
    background-color: var(--bg-surface-subtle);
    border-top: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.75rem;
}

.tool-config-grid {
    padding: 1.5rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    align-items: center;
}

.config-meta h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    word-break: break-all;
}

.config-meta p {
    font-size: 0.84rem;
    color: var(--text-muted);
}

.config-input-group label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.4rem;
}

.text-input {
    width: 100%;
    font-family: inherit;
    font-size: 0.88rem;
    padding: 0.55rem 0.85rem;
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-sm);
    background-color: var(--bg-surface);
    color: var(--text-primary);
    outline: none;
}

.text-input:focus {
    border-color: var(--brand-navy);
}

/* Sortable List for PDF Merge */
.sortable-list {
    padding: 0.5rem 0;
}

.sortable-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.25rem;
    border-bottom: 1px solid var(--border-subtle);
}

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

.sortable-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    overflow: hidden;
}

.sortable-name {
    font-weight: 600;
    font-size: 0.88rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sortable-actions {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

/* Rotate Controls */
.rotate-controls {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.rotate-btn {
    font-family: inherit;
    font-size: 0.82rem;
    font-weight: 600;
    padding: 0.5rem 0.85rem;
    border: 1px solid var(--border-medium);
    background-color: var(--bg-surface);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
}

.rotate-btn.active {
    background-color: var(--brand-navy);
    color: #ffffff;
    border-color: var(--brand-navy);
}

/* Image Grid for Images to PDF */
.image-preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 1rem;
    padding: 1.25rem;
}

.image-thumb-card {
    position: relative;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    overflow: hidden;
    background-color: var(--bg-surface-subtle);
    aspect-ratio: 1;
}

.image-thumb-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.image-thumb-remove {
    position: absolute;
    top: 4px;
    right: 4px;
    background-color: rgba(15, 23, 42, 0.75);
    color: #ffffff;
    border: none;
    border-radius: 50%;
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 0.75rem;
}

.image-thumb-remove:hover {
    background-color: #dc2626;
}

/* Batch Bar & Tables */
.batch-bar {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 0.9rem 1.25rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-sm);
    flex-wrap: wrap;
    gap: 1rem;
}

.batch-left {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.batch-count {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-primary);
}

.batch-global-target {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.84rem;
    color: var(--text-secondary);
}

.format-select {
    font-family: inherit;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-primary);
    background-color: var(--bg-surface-subtle);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-sm);
    padding: 0.35rem 0.65rem;
    cursor: pointer;
    outline: none;
}

.batch-status-summary {
    font-size: 0.84rem;
    color: var(--text-muted);
    background-color: var(--bg-surface-subtle);
    padding: 0.25rem 0.65rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-subtle);
}

.batch-actions {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-wrap: wrap;
}

.action-btn {
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 600;
    padding: 0.55rem 1rem;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    transition: all 0.15s ease;
}

.btn-primary {
    background-color: var(--brand-navy);
    color: #ffffff;
    border-color: var(--brand-navy);
}

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

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-secondary {
    background-color: var(--bg-surface);
    color: var(--text-secondary);
    border-color: var(--border-medium);
}

.btn-secondary:hover {
    background-color: var(--bg-surface-subtle);
    color: var(--text-primary);
}

.btn-success {
    background-color: var(--success-bg);
    color: var(--success-text);
    border-color: var(--success-bg);
}

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

/* File List Table */
.file-list-container {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    margin-bottom: 2rem;
    overflow: hidden;
}

.table-header {
    display: grid;
    grid-template-columns: 3.2fr 1fr 1.6fr 2fr 1.2fr;
    padding: 0.75rem 1.25rem;
    background-color: var(--bg-surface-subtle);
    border-bottom: 1px solid var(--border-subtle);
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--text-muted);
}

.file-row {
    display: grid;
    grid-template-columns: 3.2fr 1fr 1.6fr 2fr 1.2fr;
    padding: 0.85rem 1.25rem;
    align-items: center;
    border-bottom: 1px solid var(--border-subtle);
    font-size: 0.88rem;
}

.file-row:last-child {
    border-bottom: none;
}

.file-row:hover {
    background-color: var(--bg-surface-subtle);
}

.col-file {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    overflow: hidden;
}

.file-row-meta {
    overflow: hidden;
}

.file-row-name {
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: block;
}

.file-row-size {
    font-size: 0.76rem;
    color: var(--text-muted);
}

.format-pill {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.2rem 0.55rem;
    border-radius: var(--radius-sm);
    text-align: center;
}

.pill-pdf { background-color: var(--badge-pdf-bg); color: var(--badge-pdf-text); border: 1px solid var(--badge-pdf-border); }
.pill-word { background-color: var(--badge-word-bg); color: var(--badge-word-text); border: 1px solid var(--badge-word-border); }
.pill-sheet { background-color: var(--badge-sheet-bg); color: var(--badge-sheet-text); border: 1px solid var(--badge-sheet-border); }
.pill-slide { background-color: var(--badge-slide-bg); color: var(--badge-slide-text); border: 1px solid var(--badge-slide-border); }
.pill-img { background-color: var(--badge-img-bg); color: var(--badge-img-text); border: 1px solid var(--badge-img-border); }
.pill-text { background-color: var(--badge-text-bg); color: var(--badge-text-text); border: 1px solid var(--badge-text-border); }

.col-target {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.target-select {
    font-family: inherit;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
    background-color: var(--bg-surface);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-sm);
    padding: 0.25rem 0.5rem;
    cursor: pointer;
    outline: none;
}

.col-status {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.status-badge {
    font-size: 0.78rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.status-pending { color: var(--text-muted); }
.status-processing { color: var(--brand-navy); }
.status-completed { color: #10b981; }
.status-error { color: #ef4444; }

.row-progress {
    width: 100%;
    height: 4px;
    background-color: var(--border-subtle);
    border-radius: 2px;
    overflow: hidden;
}

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

.progress-bar-fill.success { background-color: #10b981; }
.progress-bar-fill.error { background-color: #ef4444; }

.col-actions {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.row-btn {
    font-family: inherit;
    font-size: 0.78rem;
    font-weight: 600;
    padding: 0.35rem 0.65rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-medium);
    background-color: var(--bg-surface);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    text-decoration: none;
    color: var(--text-secondary);
}

.row-btn:hover {
    background-color: var(--bg-surface-subtle);
    color: var(--text-primary);
}

.row-btn-download {
    background-color: var(--success-bg);
    border-color: var(--success-bg);
    color: #ffffff;
}

.row-btn-download:hover {
    background-color: var(--success-hover);
    color: #ffffff;
}

.row-btn-delete {
    color: #ef4444;
    border-color: var(--border-medium);
    padding: 0.35rem;
}

.row-btn-delete:hover {
    background-color: var(--badge-pdf-bg);
}

.spinner {
    display: inline-block;
    width: 13px;
    height: 13px;
    border: 2px solid rgba(100, 116, 139, 0.3);
    border-top-color: var(--brand-navy);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* Feature Grid */
.specs-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
    margin-top: 2rem;
}

.spec-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    display: flex;
    gap: 0.85rem;
    box-shadow: var(--shadow-sm);
}

.spec-icon {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    background-color: var(--bg-surface-subtle);
    color: var(--brand-navy);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-subtle);
}

.spec-text h3 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.spec-text p {
    font-size: 0.82rem;
    color: var(--text-muted);
    line-height: 1.45;
}

/* Modals & Overlays */
.history-overlay, .privacy-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.6);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(2px);
}

.history-drawer {
    position: fixed;
    top: 0;
    right: 0;
    width: 380px;
    max-width: 90vw;
    height: 100%;
    background-color: var(--bg-surface);
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.15);
    display: flex;
    flex-direction: column;
    z-index: 1001;
    animation: slideIn 0.25s ease;
}

html[dir="rtl"] .history-drawer {
    right: auto;
    left: 0;
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.15);
}

@keyframes slideIn {
    from { transform: translateX(100%); }
    to { transform: translateX(0); }
}

html[dir="rtl"] @keyframes slideIn {
    from { transform: translateX(-100%); }
    to { transform: translateX(0); }
}

.history-header, .privacy-header {
    padding: 1.1rem 1.25rem;
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.close-btn {
    background: transparent;
    border: none;
    font-size: 1.4rem;
    line-height: 1;
    color: var(--text-muted);
    cursor: pointer;
}

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

.empty-history {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: 3rem;
}

.history-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.65rem 0.85rem;
    background-color: var(--bg-surface-subtle);
    border-radius: var(--radius-sm);
    margin-bottom: 0.5rem;
    font-size: 0.82rem;
}

.history-item-name {
    font-weight: 600;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 200px;
}

.history-footer, .privacy-footer {
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--border-subtle);
    display: flex;
    justify-content: flex-end;
}

.privacy-modal {
    background-color: var(--bg-surface);
    border-radius: var(--radius-md);
    max-width: 520px;
    width: 90%;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

.privacy-icon {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background-color: #f0fdf4;
    display: flex;
    align-items: center;
    justify-content: center;
}

[data-theme="dark"] .privacy-icon {
    background-color: #0c2818;
}

.privacy-body {
    padding: 1.5rem;
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.privacy-bullets {
    margin-top: 1rem;
    padding-inline-start: 1.5rem;
}

.privacy-bullets li {
    margin-bottom: 0.4rem;
}

/* Site Footer */
.site-footer {
    background-color: var(--bg-surface);
    border-top: 1px solid var(--border-subtle);
    padding: 1.5rem 0;
    margin-top: auto;
}

.footer-container {
    max-width: 1150px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.6rem;
    text-align: center;
    font-size: 0.82rem;
    color: var(--text-muted);
}

.footer-support a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 600;
}

.footer-support a:hover {
    color: var(--brand-navy);
    text-decoration: underline;
}

/* ==========================================================================
   Comprehensive Universal Cross-Device Responsive System
   Smartphones (320px-480px), Tablets (600px-1024px), Laptops & Desktops
   ========================================================================== */

/* Tablets & Small Laptops (<= 1024px) */
@media (max-width: 1024px) {
    .header-container {
        padding: 0 1.25rem;
    }
    .content-wrapper {
        padding: 0 1.25rem;
    }
    .specs-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 1.25rem;
    }
}

/* Medium Tablets & Large Phones (<= 768px) */
@media (max-width: 768px) {
    /* Prevent iOS Safari auto-zoom on input focus */
    input, select, textarea, .format-select, .text-input {
        font-size: 16px !important;
    }

    .site-header {
        padding: 0.75rem 0;
    }

    .header-container {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
        padding: 0 1rem;
    }

    .header-controls {
        width: 100%;
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 0.4rem;
    }

    .tools-nav {
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

    .tools-nav::-webkit-scrollbar {
        display: none;
    }

    .tools-nav-container {
        padding: 0.4rem 1rem;
        gap: 0.35rem;
    }

    .nav-tool-btn {
        flex-shrink: 0;
        padding: 0.5rem 0.75rem;
        font-size: 0.8rem;
    }

    .content-wrapper {
        padding: 0 1rem;
    }

    .tool-config-grid {
        grid-template-columns: 1fr;
        padding: 1.15rem;
        gap: 1rem;
    }

    .table-header {
        display: none;
    }

    .file-row {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
        padding: 1rem;
        border-bottom: 1px solid var(--border-subtle);
    }

    .col-file {
        width: 100%;
    }

    .col-source, .col-target, .col-status, .col-action {
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    .col-target select {
        min-width: 140px;
    }

    .col-action {
        justify-content: flex-end;
        gap: 0.5rem;
    }

    .batch-bar {
        flex-direction: column;
        align-items: stretch;
        gap: 0.85rem;
        padding: 1rem;
    }

    .batch-left {
        width: 100%;
        justify-content: space-between;
    }

    .batch-actions {
        width: 100%;
        display: flex;
        flex-direction: column;
        gap: 0.5rem;
    }

    .action-btn {
        width: 100%;
        justify-content: center;
        padding: 0.65rem 1rem;
        min-height: 42px;
    }

    .specs-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}

/* Standard Mobile Phones (<= 640px) */
@media (max-width: 640px) {
    .category-tabs {
        display: flex;
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        padding: 0.3rem;
        margin-bottom: 1rem;
        max-width: 100%;
    }

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

    .tab-btn {
        flex-shrink: 0;
        padding: 0.45rem 0.8rem;
        font-size: 0.8rem;
    }

    .dropzone {
        padding: 2.2rem 1rem;
        border-radius: var(--radius-md);
    }

    .dropzone-icon {
        width: 50px;
        height: 50px;
    }

    .dropzone-heading {
        font-size: 1.05rem;
    }

    .dropzone-sub {
        font-size: 0.8rem;
    }

    .browse-btn {
        width: 100%;
        max-width: 260px;
        padding: 0.65rem 1.25rem;
        min-height: 44px;
    }

    .brand-title {
        font-size: 1.15rem;
    }

    .brand-subtitle {
        font-size: 0.72rem;
    }

    .privacy-modal {
        width: 95%;
        margin: 0.5rem;
        max-height: 85vh;
        overflow-y: auto;
    }

    .privacy-body {
        padding: 1.25rem;
        font-size: 0.84rem;
    }
}

/* Compact Mobile Phones (<= 480px, iPhone SE, Small Androids) */
@media (max-width: 480px) {
    .site-header {
        padding: 0.5rem 0;
    }

    .brand-logo-wrap {
        width: 36px;
        height: 36px;
    }

    .brand-subtitle {
        display: none; /* Conserve vertical space on very small screens */
    }

    .header-controls {
        gap: 0.3rem;
    }

    .privacy-badge-btn, .history-toggle-btn, .support-btn, .lang-toggle-btn {
        padding: 0.35rem 0.5rem;
        font-size: 0.72rem;
    }

    .history-drawer {
        width: 100%;
        max-width: 100vw;
    }

    .lang-menu {
        max-width: calc(100vw - 20px);
        right: 0;
    }

    html[dir="rtl"] .lang-menu {
        right: auto;
        left: 0;
    }

    .footer-container {
        padding: 1.5rem 1rem;
        gap: 0.5rem;
    }

    .footer-text, .footer-support {
        font-size: 0.76rem;
    }
}