/* ===== VARS (LIGHT THEME - DEFAULT) ===== */
        :root {
            --bg: #f0f2f5;
            --bg2: #f5f7fa;
            --sidebar: #ffffff;
            --panel: #ffffff;
            --panel-hover: #f8f9fb;
            --card: #ffffff;
            --card-bg-solid: #ffffff;
            --border: #e2e5e9;
            --border-focus: rgba(124,58,237,0.5);
            --p1: #7c3aed;
            --p2: #3b82f6;
            --p3: #06b6d4;
            --primary: #7c3aed;
            --grad: linear-gradient(135deg, #7c3aed, #3b82f6);
            --grad2: linear-gradient(135deg, #3b82f6, #06b6d4);
            --grad-full: linear-gradient(135deg, #7c3aed 0%, #3b82f6 50%, #06b6d4 100%);
            --text: #1a1a2e;
            --text2: #5a5f72;
            --text3: #6b7280;
            --success: #10b981;
            --error: #ef4444;
            --warn: #f59e0b;
            --r: 14px;
            --sw: 265px;
            --th: 62px;
            --card-shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --card-shadow-hover: 0 10px 30px rgba(0,0,0,0.08);
            --toast-bg: #ffffff;
            --input-bg: #f5f7fa;
            --select-option-bg: #ffffff;
            --drop-bg: rgba(124,58,237,0.04);
            --drop-border: rgba(124,58,237,0.25);
        }

        /* ===== DARK THEME ===== */
        [data-theme="dark"] {
            --bg: #07091a;
            --bg2: #0d1228;
            --sidebar: rgba(10,14,30,0.97);
            --panel: rgba(255,255,255,0.035);
            --panel-hover: rgba(255,255,255,0.06);
            --card: rgba(15,20,42,0.8);
            --border: rgba(255,255,255,0.12);
            --text: #eef2ff;
            --text2: rgba(238,242,255,0.72);
            --text3: rgba(238,242,255,0.55);
            --error: #f87171;
            --card-shadow: 0 1px 3px rgba(0,0,0,0.3);
            --card-shadow-hover: 0 10px 30px rgba(124,58,237,0.15);
            --toast-bg: rgba(15,20,42,0.97);
            --input-bg: rgba(255,255,255,0.05);
            --select-option-bg: #0d1228;
            --drop-bg: rgba(124,58,237,0.06);
            --drop-border: rgba(124,58,237,0.35);
            --card-bg-solid: rgba(15,20,42,0.8);
        }

        /* Auto dark mode based on OS preference (only if user hasn't toggled) */
        @media (prefers-color-scheme: dark) {
            :root:not([data-theme="light"]) {
                --bg: #07091a;
                --bg2: #0d1228;
                --sidebar: rgba(10,14,30,0.97);
                --panel: rgba(255,255,255,0.035);
                --panel-hover: rgba(255,255,255,0.06);
                --card: rgba(15,20,42,0.8);
                --border: rgba(255,255,255,0.12);
                --text: #eef2ff;
                --text2: rgba(238,242,255,0.72);
                --text3: rgba(238,242,255,0.55);
                --error: #f87171;
                --card-shadow: 0 1px 3px rgba(0,0,0,0.3);
                --card-shadow-hover: 0 10px 30px rgba(124,58,237,0.15);
                --toast-bg: rgba(15,20,42,0.97);
                --input-bg: rgba(255,255,255,0.05);
                --select-option-bg: #0d1228;
                --drop-bg: rgba(124,58,237,0.06);
                --drop-border: rgba(124,58,237,0.35);
                --card-bg-solid: rgba(15,20,42,0.8);
            }
        }

        /* Respect motion preference */
        @media (prefers-reduced-motion: reduce) {
            *, *::before, *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }
        }
        [data-theme="dark"] .drop-zone {
            background: var(--drop-bg);
            border-color: var(--drop-border);
        }
        [data-theme="dark"] .drop-zone:hover,
        [data-theme="dark"] .drop-zone.drag-over {
            background: rgba(124,58,237,0.12);
            border-color: rgba(124,58,237,0.7);
        }
        [data-theme="dark"] .home-card {
            background: var(--card-bg-solid);
            border-color: rgba(255,255,255,0.08);
        }
        [data-theme="dark"] .home-card:hover {
            border-color: rgba(124,58,237,0.5);
            box-shadow: 0 8px 32px rgba(124,58,237,0.2);
        }
        [data-theme="dark"] .options-card {
            background: rgba(15,20,42,0.6);
            border-color: rgba(255,255,255,0.08);
        }
        [data-theme="dark"] .result-card {
            background: rgba(15,20,42,0.8);
            border-color: rgba(255,255,255,0.1);
        }
        [data-theme="dark"] .option-input,
        [data-theme="dark"] .option-select {
            background: rgba(255,255,255,0.06);
            border-color: rgba(255,255,255,0.1);
        }
        [data-theme="dark"] .option-input:focus,
        [data-theme="dark"] .option-select:focus {
            border-color: rgba(124,58,237,0.6);
            box-shadow: 0 0 0 3px rgba(124,58,237,0.15);
        }
        [data-theme="dark"] .btn-convert {
            box-shadow: 0 4px 20px rgba(124,58,237,0.3);
        }
        [data-theme="dark"] .progress-bar {
            background: rgba(255,255,255,0.06);
        }
        [data-theme="dark"] .type-badge {
            background: rgba(124,58,237,0.15);
            color: #c4b5fd;
        }

        /* ===== RESET ===== */
        *, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }

        body {
            font-family: 'Sora', -apple-system, sans-serif;
            background: var(--bg);
            color: var(--text);
            min-height: 100vh;
            overflow-x: hidden;
        }

        /* Animated ambient bg */
        body::before {
            content: '';
            position: fixed; inset: 0; z-index: 0;
            background:
                radial-gradient(ellipse 70% 60% at 15% 40%, rgba(124,58,237,0.04) 0%, transparent 60%),
                radial-gradient(ellipse 50% 50% at 85% 15%, rgba(6,182,212,0.03) 0%, transparent 60%),
                radial-gradient(ellipse 40% 40% at 60% 85%, rgba(59,130,246,0.03) 0%, transparent 60%);
            pointer-events: none;
        }
        [data-theme="dark"] body::before,
        body[data-theme="dark"]::before {
            background:
                radial-gradient(ellipse 70% 60% at 15% 40%, rgba(124,58,237,0.08) 0%, transparent 60%),
                radial-gradient(ellipse 50% 50% at 85% 15%, rgba(6,182,212,0.07) 0%, transparent 60%),
                radial-gradient(ellipse 40% 40% at 60% 85%, rgba(59,130,246,0.06) 0%, transparent 60%);
            animation: ambientPulse 12s ease-in-out infinite alternate;
        }
        @keyframes ambientPulse {
            0% { opacity: 0.8; }
            100% { opacity: 1.3; }
        }

        /* ===== LAYOUT ===== */
        .app { display: flex; flex-direction: column; min-height: 100vh; position: relative; z-index: 1; }

        /* ===== NAVBAR (replaces sidebar) ===== */
        .navbar {
            width: 100%;
            background: var(--sidebar);
            border-bottom: 1px solid var(--border);
            position: sticky; top: 0;
            z-index: 200;
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
        }
        [data-theme="dark"] .navbar { background: rgba(10,14,30,0.97); }
        .navbar-inner {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 24px;
            height: 64px;
        }
        .navbar-left { display: flex; align-items: center; gap: 32px; min-width: 0; flex: 1 1 auto; }
        .navbar-logo {
            display: flex; align-items: center; gap: 10px;
            cursor: pointer; text-decoration: none; flex-shrink: 0;
        }
        .logo-svg { width: 38px; height: 38px; flex-shrink: 0; }
        .logo-text {
            font-size: 1.35rem; font-weight: 800;
            background: var(--grad-full);
            -webkit-background-clip: text; -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.02em;
            white-space: nowrap; flex-shrink: 0;
        }

        /* Nav links */
        .navbar-links {
            display: flex; align-items: center; gap: 4px;
            list-style: none;
        }
        .navbar-links > li { position: relative; }
        .nav-link {
            display: flex; align-items: center; gap: 5px;
            padding: 8px 14px; border-radius: 8px;
            cursor: pointer; transition: all 0.2s;
            color: var(--text); font-size: 0.82rem; font-weight: 600;
            text-transform: uppercase; letter-spacing: 0.04em;
            white-space: nowrap; user-select: none;
            background: none; border: none; font-family: 'Sora', sans-serif;
        }
        .nav-link:hover { background: var(--panel-hover); color: var(--p1); }
        .nav-link .arrow { font-size: 0.55rem; transition: transform 0.2s; color: var(--text3); }
        .navbar-links > li:hover .arrow { transform: rotate(180deg); }

        /* Dropdown */
        .nav-dropdown {
            display: none;
            position: absolute; top: 100%; left: 0;
            min-width: 240px;
            background: var(--sidebar);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 8px;
            box-shadow: 0 12px 40px rgba(0,0,0,0.12);
            z-index: 300;
            margin-top: 4px;
        }
        [data-theme="dark"] .nav-dropdown { background: rgba(10,14,30,0.98); box-shadow: 0 12px 40px rgba(0,0,0,0.4); }
        .navbar-links > li:hover > .nav-dropdown { display: block; }
        .nav-dropdown-grid {
            display: none; flex-wrap: wrap; gap: 4px;
            min-width: 480px; max-width: 560px; padding: 10px;
        }
        .navbar-links > li:hover > .nav-dropdown-grid { display: flex; }
        .nav-dropdown-grid .nav-dropdown-item {
            flex: 0 0 auto; padding: 7px 10px; font-size: 0.78rem;
            border: 1px solid var(--border); border-radius: 8px;
            background: var(--input-bg);
        }
        .nav-dropdown-grid .nav-dropdown-item:hover { border-color: var(--text3); }
        .nav-dropdown-item {
            display: flex; align-items: center; gap: 10px;
            padding: 10px 12px; border-radius: 8px;
            cursor: pointer; transition: all 0.15s;
            color: var(--text2); font-size: 0.85rem; font-weight: 500;
            white-space: nowrap;
        }
        .nav-dropdown-item:hover { background: var(--panel-hover); color: var(--text); }
        .nav-dropdown-item.active { background: rgba(124,58,237,0.08); color: var(--p1); font-weight: 600; }
        .nav-dropdown-icon { font-size: 1rem; width: 22px; text-align: center; flex-shrink: 0; }
        .nav-dropdown-badge {
            margin-left: auto; background: rgba(124,58,237,0.1);
            border: 1px solid rgba(124,58,237,0.2);
            color: var(--p1); font-size: 0.55rem; font-weight: 700;
            padding: 2px 6px; border-radius: 100px; text-transform: uppercase;
        }

        /* Navbar right */
        .navbar-right { display: flex; align-items: center; gap: 10px; }
        .lang-toggle {
            background: var(--input-bg); border: 1px solid var(--border);
            color: var(--text2); font-size: 0.7rem; font-weight: 600;
            padding: 0; width: 68px; height: 32px; border-radius: 100px; cursor: pointer;
            transition: all 0.25s ease; letter-spacing: 0.02em;
            display: inline-flex; align-items: center; justify-content: center; gap: 5px;
            position: relative; overflow: hidden; flex-shrink: 0;
        }
        .lang-toggle:hover { background: var(--panel-hover); border-color: var(--text3); color: var(--text); }
        .lang-toggle .lang-flag { font-size: 0.85rem; line-height: 1; transition: transform 0.3s ease; }
        .lang-toggle:hover .lang-flag { transform: scale(1.15); }
        .lang-toggle .lang-code { transition: opacity 0.2s; }

        .topbar-badge {
            background: rgba(16,185,129,0.1); border: 1px solid rgba(16,185,129,0.25);
            color: var(--success); font-size: 0.7rem; font-weight: 700;
            padding: 4px 10px; border-radius: 100px; text-transform: uppercase; letter-spacing: 0.05em;
        }

        /* Mobile hamburger */
        .hamburger {
            display: none; flex-direction: column; gap: 5px;
            cursor: pointer; padding: 10px; border-radius: 8px; min-width: 44px; min-height: 44px; align-items: center; justify-content: center;
            transition: background 0.2s; background: none; border: none;
        }
        .hamburger:hover { background: var(--panel-hover); }
        .hamburger span { display: block; width: 20px; height: 2px; background: var(--text2); border-radius: 2px; transition: all 0.3s; }

        /* Mobile menu overlay */
        .mobile-menu {
            display: none;
            position: fixed; top: 64px; left: 0; right: 0; bottom: 0;
            background: var(--sidebar);
            z-index: 199;
            overflow-y: auto;
            padding: 16px;
        }
        [data-theme="dark"] .mobile-menu { background: rgba(10,14,30,0.98); }
        .mobile-menu.open { display: block; }
        .mobile-menu .section-label {
            font-size: 0.65rem; font-weight: 700;
            text-transform: uppercase; letter-spacing: 0.12em;
            color: var(--text3); padding: 14px 10px 6px;
            width: 100%; flex-shrink: 0;
        }
        .mobile-menu .nav-items-grid {
            display: flex; flex-wrap: wrap; gap: 6px;
            margin-bottom: 6px;
        }
        .mobile-menu .nav-item {
            display: flex; align-items: center; gap: 6px;
            padding: 8px 12px; border-radius: 10px;
            cursor: pointer; transition: all 0.2s;
            color: var(--text2); font-size: 0.78rem; font-weight: 500;
            border: 1px solid var(--border);
            background: var(--input-bg);
            white-space: nowrap;
        }
        .mobile-menu .nav-item:hover { background: var(--panel-hover); color: var(--text); border-color: var(--text3); }
        .mobile-menu .nav-item.active {
            background: rgba(124,58,237,0.08);
            border-color: rgba(124,58,237,0.3);
            color: var(--p1); font-weight: 600;
        }
        .mobile-menu .nav-icon { font-size: 0.9rem; flex-shrink: 0; }

        /* ===== MAIN ===== */
        .main { flex: 1; display: flex; flex-direction: column; min-height: calc(100vh - 64px); }

        /* ===== CONTENT ===== */
        .content { flex: 1; padding: 32px 28px; max-width: 1100px; width: 100%; margin: 0 auto; }

        /* ===== PANELS ===== */
        .tool-panel { display: none; }
        .tool-panel.active { display: block; animation: fadeUp 0.35s cubic-bezier(0.4,0,0.2,1); }
        @keyframes fadeUp { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }

        .tool-header { margin-bottom: 28px; display: flex; align-items: flex-start; gap: 16px; position: relative; }
        .btn-back-home { display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; min-width: 40px; border-radius: 10px; border: 1px solid var(--border); background: var(--input-bg); color: var(--text2); cursor: pointer; font-size: 1.1rem; transition: all .2s; flex-shrink: 0; margin-right: -4px; }
        .btn-back-home:hover { background: var(--panel-hover); color: var(--text); border-color: var(--text3); }
        @media (max-width: 600px) { .btn-back-home { width: 44px; height: 44px; min-width: 44px; } }
        .tool-header-icon {
            width: 52px; height: 52px; border-radius: 14px;
            display: flex; align-items: center; justify-content: center;
            font-size: 1.6rem; flex-shrink: 0;
        }
        .icon-purple { background: rgba(124,58,237,0.15); }
        .icon-blue { background: rgba(59,130,246,0.15); }
        .icon-cyan { background: rgba(6,182,212,0.15); }
        .icon-green { background: rgba(16,185,129,0.15); }
        .icon-orange { background: rgba(249,115,22,0.15); }
        .icon-pink { background: rgba(236,72,153,0.15); }
        .icon-amber { background: rgba(245,158,11,0.15); }

        .tool-title { font-size: 1.65rem; font-weight: 800; letter-spacing: -0.02em; margin-bottom: 4px; }
        .tool-desc { color: var(--text2); font-size: 0.9rem; line-height: 1.6; }

        /* ===== DROP ZONE ===== */
        .drop-zone {
            border: 2px dashed rgba(124,58,237,0.28);
            border-radius: 20px; padding: 50px 24px;
            text-align: center; cursor: pointer;
            transition: all 0.25s; background: rgba(124,58,237,0.025);
            position: relative; margin-bottom: 16px;
        }
        .drop-zone:hover, .drop-zone.drag-over {
            border-color: rgba(124,58,237,0.65);
            background: rgba(124,58,237,0.06);
            transform: scale(1.005);
        }
        /* Disable input overlay during drag so ondrop fires on the parent div */
        .drop-zone.drag-over input[type="file"] {
            pointer-events: none;
        }
        .drop-zone input[type="file"] {
            position: absolute; inset: 0; opacity: 0;
            cursor: pointer; width: 100%; height: 100%; z-index: 1;
        }
        .drop-icon { font-size: 2.8rem; display: block; margin-bottom: 14px; }
        .drop-title { font-size: 1.05rem; font-weight: 700; margin-bottom: 6px; }
        .drop-hint { color: var(--text2); font-size: 0.83rem; margin-bottom: 14px; }
        .drop-types { display: inline-flex; gap: 5px; flex-wrap: wrap; justify-content: center; }
        .type-badge {
            background: var(--input-bg); border: 1px solid var(--border);
            padding: 3px 9px; border-radius: 100px;
            font-size: 0.72rem; color: var(--text2); font-weight: 600; letter-spacing: 0.04em;
        }

        /* ===== FILE LIST ===== */
        .file-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 16px; }
        .file-item {
            display: flex; align-items: center; gap: 12px;
            background: var(--panel); border: 1px solid var(--border);
            border-radius: var(--r); padding: 11px 14px;
            animation: itemIn 0.22s cubic-bezier(0.4,0,0.2,1);
        }
        @keyframes itemIn { from { opacity: 0; transform: translateX(-8px); } to { opacity: 1; transform: translateX(0); } }
        .file-icon {
            width: 34px; height: 34px; border-radius: 8px;
            display: flex; align-items: center; justify-content: center;
            font-size: 1.1rem; flex-shrink: 0;
        }
        .file-info { flex: 1; min-width: 0; }
        .file-name { font-size: 0.875rem; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
        .file-size { font-size: 0.75rem; color: var(--text2); margin-top: 2px; }
        .file-remove {
            width: 26px; height: 26px; border-radius: 50%;
            background: rgba(248,113,113,0.08); border: 1px solid rgba(248,113,113,0.18);
            display: flex; align-items: center; justify-content: center;
            cursor: pointer; transition: all 0.2s; flex-shrink: 0; font-size: 0.75rem; color: var(--error);
        }
        .file-remove:hover { background: rgba(248,113,113,0.18); transform: scale(1.1); }

        /* ===== IMAGE PREVIEW GALLERY ===== */
        .img-preview-gallery {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-bottom: 16px;
        }
        .img-preview-card {
            background: var(--panel);
            border: 1px solid var(--border);
            border-radius: 18px;
            overflow: hidden;
            animation: fadeUp 0.3s ease;
            text-align: center;
            padding: 20px;
        }
        .img-preview-thumb-wrap {
            background: var(--input-bg);
            border-radius: 12px;
            padding: 12px;
            display: inline-block;
            margin-bottom: 12px;
            max-width: 100%;
        }
        .img-preview-thumb {
            max-width: 100%;
            max-height: 320px;
            border-radius: 8px;
            object-fit: contain;
            display: block;
            margin: 0 auto;
        }
        .img-preview-name {
            font-size: 0.88rem;
            font-weight: 600;
            margin-bottom: 2px;
        }
        .img-preview-size {
            font-size: 0.78rem;
            color: var(--text2);
            margin-bottom: 10px;
        }
        .img-preview-remove-btn {
            display: inline-flex; align-items: center; gap: 6px;
            background: rgba(248,113,113,0.08); border: 1px solid rgba(248,113,113,0.2);
            color: var(--error); padding: 7px 16px; border-radius: 9px;
            font-size: 0.78rem; font-weight: 600; cursor: pointer;
            transition: all 0.2s; font-family: 'Sora', sans-serif;
        }
        .img-preview-remove-btn:hover { background: rgba(248,113,113,0.16); transform: translateY(-1px); }

        /* File type preview fallback */
        .file-preview-icon-wrap {
            background: var(--input-bg);
            border-radius: 12px;
            padding: 28px 12px;
            display: flex; flex-direction: column;
            align-items: center; justify-content: center;
            margin-bottom: 12px; gap: 8px; min-height: 120px;
        }
        .file-preview-icon-big { font-size: 3.2rem; line-height: 1; }
        .file-preview-ext-badge {
            display: inline-block; background: var(--grad); color: #fff;
            font-size: 0.7rem; font-weight: 800; padding: 3px 10px;
            border-radius: 6px; letter-spacing: 0.05em; text-transform: uppercase;
        }
        .file-preview-ext-badge.ext-pdf { background: linear-gradient(135deg, #ef4444, #dc2626); }
        .file-preview-ext-badge.ext-xlsx, .file-preview-ext-badge.ext-xls, .file-preview-ext-badge.ext-csv { background: linear-gradient(135deg, #10b981, #059669); }
        .file-preview-ext-badge.ext-docx, .file-preview-ext-badge.ext-doc { background: linear-gradient(135deg, #3b82f6, #2563eb); }
        .file-preview-ext-badge.ext-pptx, .file-preview-ext-badge.ext-ppt { background: linear-gradient(135deg, #f59e0b, #d97706); }
        .file-preview-ext-badge.ext-mp4, .file-preview-ext-badge.ext-webm, .file-preview-ext-badge.ext-mov, .file-preview-ext-badge.ext-avi { background: linear-gradient(135deg, #8b5cf6, #7c3aed); }
        .pdf-preview-canvas {
            max-width: 100%; max-height: 320px; border-radius: 8px;
            display: block; margin: 0 auto; box-shadow: 0 2px 8px rgba(0,0,0,0.1);
        }

        /* ===== PDF READER ===== */
        .readpdf-toolbar {
            display: flex; align-items: center; justify-content: space-between;
            background: var(--panel); border: 1px solid var(--border);
            border-radius: 14px; padding: 8px 14px; margin-bottom: 12px;
            gap: 8px; flex-wrap: wrap; position: sticky; top: 70px; z-index: 50;
            backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
        }
        .readpdf-toolbar-left, .readpdf-toolbar-center, .readpdf-toolbar-right {
            display: flex; align-items: center; gap: 6px;
        }
        .readpdf-btn {
            background: rgba(124,58,237,0.08); border: 1px solid rgba(124,58,237,0.15);
            color: var(--text); border-radius: 8px; padding: 7px 9px;
            cursor: pointer; display: flex; align-items: center; justify-content: center;
            transition: all 0.2s; font-size: 0.8rem;
        }
        .readpdf-btn:hover { background: rgba(124,58,237,0.18); border-color: rgba(124,58,237,0.35); }
        .readpdf-btn:active { transform: scale(0.95); }
        .readpdf-btn:disabled { opacity: 0.4; cursor: not-allowed; }
        .readpdf-close-btn { background: rgba(239,68,68,0.1); border-color: rgba(239,68,68,0.2); font-size: 0.85rem; font-weight: 700; }
        .readpdf-close-btn:hover { background: rgba(239,68,68,0.25); border-color: rgba(239,68,68,0.4); }
        .readpdf-page-info {
            display: flex; align-items: center; gap: 4px; font-size: 0.8rem;
            font-weight: 600; color: var(--text2);
        }
        .readpdf-page-num {
            width: 42px; text-align: center; background: var(--bg); border: 1px solid var(--border);
            border-radius: 6px; padding: 4px; font-size: 0.8rem; font-weight: 700;
            color: var(--text); -moz-appearance: textfield;
        }
        .readpdf-page-num::-webkit-inner-spin-button,
        .readpdf-page-num::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }
        .readpdf-page-sep { color: var(--text3); }
        .readpdf-zoom-label {
            font-size: 0.75rem; font-weight: 700; color: var(--text2);
            min-width: 42px; text-align: center;
        }
        .readpdf-search-wrap {
            display: flex; align-items: center; gap: 0;
            border: 1px solid var(--border); border-radius: 8px; overflow: hidden;
            background: var(--bg);
        }
        .readpdf-search-input {
            background: transparent; border: none; padding: 6px 10px;
            font-size: 0.78rem; color: var(--text); width: 120px; outline: none;
        }
        .readpdf-search-btn { border: none; border-radius: 0; }
        .readpdf-pages {
            display: flex; flex-direction: column; align-items: center;
            gap: 16px; padding: 16px 0; min-height: 400px;
            max-height: 75vh; overflow-y: auto; overflow-x: auto;
            border-radius: 12px; background: var(--bg);
        }
        .readpdf-page-wrap {
            position: relative; box-shadow: 0 4px 20px rgba(0,0,0,0.15);
            border-radius: 4px; overflow: hidden; background: #fff;
        }
        .readpdf-page-wrap canvas { display: block; }
        .readpdf-page-placeholder {
            display: flex; align-items: center; justify-content: center;
            background: rgba(124,58,237,0.05); border: 2px dashed var(--border);
            border-radius: 4px; color: var(--text3); font-size: 0.8rem; font-weight: 600;
        }
        .readpdf-page-label {
            position: absolute; bottom: 8px; right: 10px;
            background: rgba(0,0,0,0.6); color: #fff;
            font-size: 0.65rem; font-weight: 700; padding: 2px 8px;
            border-radius: 4px; pointer-events: none;
        }
        .readpdf-loading {
            display: flex; align-items: center; justify-content: center; gap: 10px;
            padding: 24px; font-size: 0.85rem; color: var(--text2); font-weight: 600;
        }
        .readpdf-loading-spinner {
            width: 20px; height: 20px; border: 3px solid var(--border);
            border-top-color: rgba(124,58,237,0.7); border-radius: 50%;
            animation: spin 0.7s linear infinite;
        }
        @keyframes spin { to { transform: rotate(360deg); } }
        .readpdf-info-bar {
            display: flex; justify-content: space-between; align-items: center;
            padding: 8px 16px; font-size: 0.72rem; color: var(--text3);
            background: var(--panel); border: 1px solid var(--border);
            border-radius: 10px; margin-top: 10px;
        }
        .readpdf-highlight {
            background: rgba(255,220,0,0.45); border-radius: 2px;
            position: absolute; pointer-events: none; mix-blend-mode: multiply;
        }
        /* --- Ler PDF: Body layout with sidebar --- */
        .readpdf-body { display: flex; gap: 0; position: relative; }
        .readpdf-sidebar {
            width: 200px; min-width: 200px; background: var(--panel);
            border: 1px solid var(--border); border-radius: 12px 0 0 12px;
            display: flex; flex-direction: column; overflow: hidden;
            max-height: 75vh;
        }
        .readpdf-sidebar-tabs {
            display: flex; border-bottom: 1px solid var(--border); flex-shrink: 0;
        }
        .readpdf-sidebar-tab {
            flex: 1; padding: 8px 4px; font-size: 0.7rem; font-weight: 700;
            text-align: center; cursor: pointer; background: transparent;
            border: none; color: var(--text3); transition: all 0.2s;
        }
        .readpdf-sidebar-tab.active {
            color: #7c3aed; border-bottom: 2px solid #7c3aed; background: rgba(124,58,237,0.05);
        }
        .readpdf-sidebar-tab:hover { background: rgba(124,58,237,0.08); }
        .readpdf-sidebar-content { overflow-y: auto; flex: 1; padding: 8px; }
        /* Thumbnails */
        .readpdf-thumb {
            cursor: pointer; border: 2px solid transparent; border-radius: 6px;
            padding: 4px; margin-bottom: 6px; transition: all 0.2s; position: relative;
        }
        .readpdf-thumb:hover { border-color: rgba(124,58,237,0.3); background: rgba(124,58,237,0.05); }
        .readpdf-thumb.active { border-color: #7c3aed; background: rgba(124,58,237,0.1); }
        .readpdf-thumb canvas {
            display: block; width: 100%; height: auto; border-radius: 3px;
            box-shadow: 0 1px 4px rgba(0,0,0,0.12);
        }
        .readpdf-thumb-label {
            text-align: center; font-size: 0.65rem; font-weight: 600;
            color: var(--text3); margin-top: 3px;
        }
        /* Outline/TOC */
        .readpdf-outline-item {
            padding: 6px 8px; font-size: 0.75rem; color: var(--text);
            cursor: pointer; border-radius: 6px; transition: all 0.15s;
            border-left: 2px solid transparent;
        }
        .readpdf-outline-item:hover { background: rgba(124,58,237,0.08); border-left-color: #7c3aed; }
        .readpdf-outline-empty {
            padding: 16px 8px; text-align: center; font-size: 0.75rem;
            color: var(--text3); font-style: italic;
        }
        /* Text layer for selection */
        .readpdf-text-layer {
            position: absolute; top: 0; left: 0; right: 0; bottom: 0;
            overflow: hidden; opacity: 0.3; line-height: 1;
        }
        .readpdf-text-layer span {
            position: absolute; color: transparent; white-space: pre;
            transform-origin: 0% 0%;
        }
        .readpdf-text-layer span::selection { background: rgba(124,58,237,0.3); color: transparent; }
        .readpdf-text-layer span::-moz-selection { background: rgba(124,58,237,0.3); color: transparent; }
        /* Sidebar toggle button */
        .readpdf-sidebar-toggle {
            background: rgba(124,58,237,0.08); border: 1px solid rgba(124,58,237,0.15);
            color: var(--text); border-radius: 8px; padding: 7px 9px;
            cursor: pointer; display: flex; align-items: center; justify-content: center;
            transition: all 0.2s; font-size: 0.75rem;
        }
        .readpdf-sidebar-toggle:hover { background: rgba(124,58,237,0.18); }
        .readpdf-sidebar-toggle.active { background: rgba(124,58,237,0.2); border-color: #7c3aed; }
        /* Adjustments when sidebar open */
        .readpdf-body.has-sidebar .readpdf-pages { border-radius: 0 12px 12px 0; }
        /* Fullscreen mode */
        #readpdf-viewer:fullscreen { background: var(--bg); padding: 10px; }
        #readpdf-viewer:fullscreen .readpdf-toolbar { top: 0; border-radius: 0 0 14px 14px; }
        #readpdf-viewer:fullscreen .readpdf-pages { max-height: calc(100vh - 90px); }
        #readpdf-viewer:fullscreen .readpdf-sidebar { max-height: calc(100vh - 90px); }
        #readpdf-viewer:-webkit-full-screen { background: var(--bg); padding: 10px; }
        #readpdf-viewer:-webkit-full-screen .readpdf-toolbar { top: 0; }
        #readpdf-viewer:-webkit-full-screen .readpdf-pages { max-height: calc(100vh - 90px); }
        @media (max-width: 600px) {
            .readpdf-toolbar { padding: 6px 8px; gap: 4px; top: 56px; }
            .readpdf-search-input { width: 80px; }
            .readpdf-pages { max-height: 68vh; }
            .readpdf-toolbar-center { order: 3; width: 100%; justify-content: center; }
            .readpdf-sidebar { display: none !important; }
            .readpdf-body.has-sidebar .readpdf-pages { border-radius: 12px; }
        }
        @media print {
            .readpdf-toolbar, .readpdf-sidebar, .readpdf-info-bar { display: none !important; }
            .readpdf-pages { max-height: none !important; overflow: visible !important; }
            .readpdf-page-wrap { page-break-after: always; box-shadow: none !important; }
        }
        .video-preview-el {
            max-width: 100%; max-height: 320px; border-radius: 8px;
            display: block; margin: 0 auto;
        }

        /* ===== OPTIONS CARD ===== */
        .options-card {
            background: var(--panel); border: 1px solid var(--border);
            border-radius: 18px; padding: 20px 22px; margin-bottom: 20px;
        }
        .options-title {
            font-size: 0.75rem; font-weight: 700; text-transform: uppercase;
            letter-spacing: 0.1em; color: var(--text3); margin-bottom: 16px;
        }
        .options-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 14px; }
        .option-group { display: flex; flex-direction: column; gap: 5px; }
        .option-label { font-size: 0.78rem; font-weight: 600; color: var(--text2); }
        .option-select, .option-input {
            background: var(--input-bg); border: 1px solid var(--border);
            border-radius: 9px; padding: 8px 11px; color: var(--text);
            font-size: 0.84rem; font-family: 'Sora', sans-serif; outline: none;
            transition: border-color 0.2s;
        }
        .option-select:focus, .option-input:focus { border-color: var(--border-focus); }
        .option-select option, .option-input option { background: var(--select-option-bg); color: var(--text); }

        /* Toggle */
        .toggle-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
        .toggle-label { font-size: 0.84rem; font-weight: 500; color: var(--text2); }
        .toggle { position: relative; width: 42px; height: 22px; flex-shrink: 0; cursor: pointer; }
        .toggle input { opacity: 0; width: 0; height: 0; }
        .toggle-track {
            position: absolute; inset: 0; background: #d1d5db;
            border-radius: 11px; transition: background 0.3s;
        }
        [data-theme="dark"] .toggle-track { background: rgba(255,255,255,0.1); }
        .toggle input:checked + .toggle-track { background: var(--p1); }
        .toggle-track::after {
            content: ''; position: absolute; width: 16px; height: 16px;
            border-radius: 50%; background: white; top: 3px; left: 3px;
            transition: transform 0.3s; box-shadow: 0 1px 4px rgba(0,0,0,0.3);
        }
        .toggle input:checked + .toggle-track::after { transform: translateX(20px); }

        /* Visual Crop Tool */
        .crop-container { position: relative; display: inline-block; margin: 16px auto; max-width: 100%; background: var(--input-bg); border-radius: 12px; overflow: hidden; border: 1px solid var(--border); touch-action: none; user-select: none; -webkit-user-select: none; }
        .crop-container canvas { display: block; max-width: 100%; height: auto; }
        .crop-overlay { position: absolute; top: 0; left: 0; right: 0; bottom: 0; pointer-events: none; }
        .crop-dim { position: absolute; background: rgba(0,0,0,0.55); }
        .crop-selection { position: absolute; border: 2px solid #fff; box-shadow: 0 0 0 1px rgba(0,0,0,0.3), inset 0 0 0 1px rgba(255,255,255,0.2); pointer-events: auto; cursor: move; }
        .crop-selection::before { content: ''; position: absolute; inset: 0; background: repeating-linear-gradient(0deg, transparent, transparent calc(33.33% - 0.5px), rgba(255,255,255,0.3) calc(33.33% - 0.5px), rgba(255,255,255,0.3) calc(33.33% + 0.5px), transparent calc(33.33% + 0.5px)), repeating-linear-gradient(90deg, transparent, transparent calc(33.33% - 0.5px), rgba(255,255,255,0.3) calc(33.33% - 0.5px), rgba(255,255,255,0.3) calc(33.33% + 0.5px), transparent calc(33.33% + 0.5px)); pointer-events: none; }
        .crop-handle { position: absolute; width: 20px; height: 20px; pointer-events: auto; z-index: 2; }
        .crop-handle::after { content: ''; position: absolute; background: #fff; border-radius: 2px; box-shadow: 0 1px 4px rgba(0,0,0,0.4); }
        .crop-handle.corner::after { width: 14px; height: 14px; border-radius: 50%; }
        .crop-handle.edge-h::after { width: 24px; height: 4px; border-radius: 2px; }
        .crop-handle.edge-v::after { width: 4px; height: 24px; border-radius: 2px; }
        .crop-handle.tl { top: -10px; left: -10px; cursor: nwse-resize; }
        .crop-handle.tl::after { top: 3px; left: 3px; }
        .crop-handle.tr { top: -10px; right: -10px; cursor: nesw-resize; }
        .crop-handle.tr::after { top: 3px; right: 3px; }
        .crop-handle.bl { bottom: -10px; left: -10px; cursor: nesw-resize; }
        .crop-handle.bl::after { bottom: 3px; left: 3px; }
        .crop-handle.br { bottom: -10px; right: -10px; cursor: nwse-resize; }
        .crop-handle.br::after { bottom: 3px; right: 3px; }
        .crop-handle.tm { top: -10px; left: 50%; transform: translateX(-50%); cursor: ns-resize; }
        .crop-handle.tm::after { top: 8px; left: 50%; transform: translateX(-50%); }
        .crop-handle.bm { bottom: -10px; left: 50%; transform: translateX(-50%); cursor: ns-resize; }
        .crop-handle.bm::after { bottom: 8px; left: 50%; transform: translateX(-50%); }
        .crop-handle.ml { top: 50%; left: -10px; transform: translateY(-50%); cursor: ew-resize; }
        .crop-handle.ml::after { top: 50%; left: 8px; transform: translateY(-50%); }
        .crop-handle.mr { top: 50%; right: -10px; transform: translateY(-50%); cursor: ew-resize; }
        .crop-handle.mr::after { top: 50%; right: 8px; transform: translateY(-50%); }
        .crop-dims-label { text-align: center; font-size: 0.75rem; color: var(--text3); margin-top: 8px; }
        .crop-page-nav { display: flex; align-items: center; justify-content: center; gap: 12px; margin-top: 10px; }
        .crop-page-nav button { min-width: 36px; min-height: 36px; border-radius: 8px; border: 1px solid var(--border); background: var(--input-bg); color: var(--text); cursor: pointer; font-size: 0.85rem; display: flex; align-items: center; justify-content: center; }
        .crop-page-nav button:disabled { opacity: 0.3; cursor: not-allowed; }
        .crop-page-nav span { font-size: 0.82rem; color: var(--text2); }
        .crop-apply-all { display: flex; align-items: center; justify-content: center; gap: 8px; margin-top: 10px; font-size: 0.82rem; color: var(--text2); }
        .crop-apply-all input { width: 18px; height: 18px; accent-color: var(--p1); }
        @media (max-width: 600px) {
            .crop-handle { width: 28px; height: 28px; }
            .crop-handle.corner::after { width: 18px; height: 18px; }
            .crop-handle.edge-h::after { width: 28px; height: 6px; }
            .crop-handle.edge-v::after { width: 6px; height: 28px; }
        }

        /* Edit PDF Toolbar */
        .editpdf-toolbar { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
        .editpdf-tool { display: flex; align-items: center; gap: 4px; padding: 7px 12px; border-radius: 10px; border: 1px solid var(--border); background: var(--input-bg); color: var(--text2); cursor: pointer; font-size: 0.8rem; font-family: 'Sora', sans-serif; transition: all .2s; white-space: nowrap; }
        .editpdf-tool:hover { background: var(--panel-hover); color: var(--text); border-color: var(--text3); }
        .editpdf-tool.active { background: var(--p1); color: #fff; border-color: var(--p1); }
        .editpdf-opts { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; padding: 8px 0; }
        @media (max-width: 600px) {
            .editpdf-toolbar { gap: 4px; }
            .editpdf-tool { padding: 8px 10px; font-size: 0.75rem; }
            .editpdf-opts { gap: 6px; }
        }

        /* Password field */
        .password-group { display: none; }
        .password-group.visible { display: block; }

        /* ===== CONVERT BUTTON ===== */
        .btn-convert {
            display: flex; align-items: center; justify-content: center; gap: 10px;
            width: 100%; padding: 15px 24px; border: none; border-radius: 14px;
            background: var(--grad); color: white;
            font-size: 0.95rem; font-weight: 700; font-family: 'Sora', sans-serif;
            cursor: pointer; transition: all 0.3s; position: relative; overflow: hidden;
            box-shadow: 0 4px 20px rgba(124,58,237,0.3); letter-spacing: 0.01em;
        }
        .btn-convert:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(124,58,237,0.45); }
        .btn-convert:active { transform: translateY(0); }
        .btn-convert:disabled { opacity: 0.45; cursor: not-allowed; transform: none !important; box-shadow: none; }
        .btn-convert::after {
            content: ''; position: absolute; inset: 0;
            background: linear-gradient(135deg, rgba(255,255,255,0.12), transparent 60%);
        }
        .btn-icon { font-size: 1.1rem; }

        /* Spinner */
        .spinner {
            width: 18px; height: 18px; border: 2.5px solid rgba(255,255,255,0.3);
            border-top-color: white; border-radius: 50%; animation: spin 0.7s linear infinite;
            display: none;
        }
        @keyframes spin { to { transform: rotate(360deg); } }
        .btn-convert.loading .spinner { display: block; }
        .btn-convert.loading .btn-icon, .btn-convert.loading .btn-text { display: none; }

        /* ===== PROGRESS ===== */
        .progress-wrap { margin-top: 14px; display: none; }
        .progress-wrap.visible { display: block; }
        .progress-info { display: flex; justify-content: space-between; font-size: 0.78rem; color: var(--text2); margin-bottom: 7px; }
        .progress-bar { height: 5px; background: rgba(255,255,255,0.07); border-radius: 3px; overflow: hidden; }
        .progress-fill { height: 100%; background: var(--grad-full); border-radius: 3px; width: 0%; transition: width 0.35s ease; }

        /* ===== RESULT ===== */
        .result-card {
            display: none; background: rgba(16,185,129,0.07);
            border: 1px solid rgba(16,185,129,0.22); border-radius: 18px;
            padding: 28px 24px; margin-top: 14px; text-align: center;
            animation: fadeUp 0.3s ease;
        }
        .result-card.visible { display: block; }
        .result-icon { font-size: 2.4rem; display: block; margin-bottom: 10px; }
        .result-title { font-size: 1.05rem; font-weight: 700; color: var(--success); margin-bottom: 5px; }
        .result-desc { color: var(--text2); font-size: 0.84rem; margin-bottom: 20px; }
        .result-actions { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
        .btn-download {
            display: inline-flex; align-items: center; gap: 7px;
            background: rgba(16,185,129,0.12); border: 1px solid rgba(16,185,129,0.28);
            color: var(--success); padding: 11px 22px; border-radius: 10px;
            font-size: 0.875rem; font-weight: 700; cursor: pointer;
            transition: all 0.2s; font-family: 'Sora', sans-serif; text-decoration: none;
        }
        .btn-download:hover { background: rgba(16,185,129,0.2); transform: translateY(-1px); }
        .btn-reset {
            display: inline-flex; align-items: center; gap: 7px;
            background: var(--panel); border: 1px solid var(--border);
            color: var(--text2); padding: 11px 22px; border-radius: 10px;
            font-size: 0.875rem; font-weight: 600; cursor: pointer;
            transition: all 0.2s; font-family: 'Sora', sans-serif;
        }
        .btn-reset:hover { background: var(--panel-hover); color: var(--text); }

        /* ===== TOAST ===== */
        .toast-container {
            position: fixed; bottom: 20px; right: 20px;
            display: flex; flex-direction: column; gap: 10px; z-index: 9999;
        }
        .toast {
            display: flex; align-items: flex-start; gap: 12px;
            background: var(--toast-bg); backdrop-filter: blur(20px);
            border: 1px solid var(--border); border-radius: 14px;
            padding: 14px 16px; min-width: 270px; max-width: 360px;
            box-shadow: 0 8px 40px rgba(0,0,0,0.5);
            animation: toastIn 0.3s cubic-bezier(0.4,0,0.2,1);
        }
        @keyframes toastIn { from { opacity: 0; transform: translateX(16px); } to { opacity: 1; transform: translateX(0); } }
        .toast.out { animation: toastOut 0.3s ease forwards; }
        @keyframes toastOut { from { opacity: 1; transform: translateX(0); } to { opacity: 0; transform: translateX(16px); } }
        .toast.success { border-color: rgba(16,185,129,0.3); }
        .toast.error { border-color: rgba(248,113,113,0.3); }
        .toast.info { border-color: rgba(59,130,246,0.3); }
        .toast-icon { font-size: 1.2rem; flex-shrink: 0; margin-top: 1px; }
        .toast-text { flex: 1; }
        .toast-title { font-size: 0.875rem; font-weight: 700; }
        .toast-desc { font-size: 0.78rem; color: var(--text2); margin-top: 2px; line-height: 1.5; }
        .toast-close { color: var(--text3); cursor: pointer; font-size: 1rem; flex-shrink: 0; transition: color 0.2s; line-height: 1; }
        .toast-close:hover { color: var(--text); }

        /* ===== WATERMARK PREVIEW ===== */
        .wm-preview-box {
            background: white; border-radius: 10px; aspect-ratio: 210/297;
            max-width: 200px; margin: 0 auto 16px; position: relative;
            overflow: hidden; box-shadow: 0 4px 20px rgba(0,0,0,0.3);
            display: flex; align-items: center; justify-content: center;
        }
        .wm-text {
            font-size: 1.5rem; font-weight: 800; color: rgba(124,58,237,0.25);
            transform: rotate(-35deg); white-space: nowrap; text-align: center;
            pointer-events: none; user-select: none;
        }

        /* ===== SPLIT INPUT ===== */
        .split-hint { font-size: 0.78rem; color: var(--text3); margin-top: 4px; }

        /* ===== VIDEO INFO CARD ===== */
        .video-info-card {
            display: flex; align-items: center; gap: 16px;
            background: var(--panel); border: 1px solid var(--border);
            border-radius: 16px; padding: 14px 16px; margin-bottom: 16px;
        }
        .video-thumb {
            width: 120px; height: 68px; object-fit: cover;
            border-radius: 8px; background: #000; flex-shrink: 0;
            border: 1px solid var(--border);
        }
        .video-meta { display: flex; flex-wrap: wrap; gap: 8px; flex: 1; }
        .video-meta span {
            background: var(--input-bg); border: 1px solid var(--border);
            padding: 4px 10px; border-radius: 8px;
            font-size: 0.8rem; color: var(--text2); font-weight: 500;
        }
        .video-meta .badge-4k {
            background: rgba(124,58,237,0.15); border-color: rgba(124,58,237,0.35);
            color: #a78bfa; font-weight: 700;
        }
        .video-warn {
            display: none; background: rgba(245,158,11,0.08);
            border: 1px solid rgba(245,158,11,0.25); border-radius: 12px;
            padding: 12px 16px; margin-bottom: 16px;
            font-size: 0.82rem; color: var(--warn); line-height: 1.6;
        }
        .video-warn.visible { display: block; }

        /* ===== STATS ROW (sidebar bottom) ===== */
        .stats-row { display: flex; gap: 6px; margin-top: 10px; }
        .stat-pill {
            flex: 1; background: var(--input-bg); border: 1px solid var(--border);
            border-radius: 8px; padding: 6px 8px; text-align: center;
        }
        .stat-num { font-size: 0.9rem; font-weight: 800; background: var(--grad-full); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .stat-lbl { font-size: 0.6rem; color: var(--text3); font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; }
        .stats-row-footer { display: none; }

        /* ===== HOME CARDS ===== */
        .home-hero { text-align: center; margin-bottom: 36px; }
        .home-title {
            font-size: 2rem; font-weight: 800; letter-spacing: -0.03em;
            color: var(--text); margin-bottom: 8px;
        }
        .home-subtitle { color: var(--text2); font-size: 1rem; line-height: 1.6; }

        .home-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 14px;
        }
        .home-card {
            background: var(--panel);
            border: 1px solid var(--border);
            border-radius: 18px;
            padding: 24px 20px;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
            position: relative;
            overflow: hidden;
            box-shadow: var(--card-shadow);
        }
        .home-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--card-shadow-hover);
            border-color: rgba(124, 58, 237, 0.35);
        }
        .home-card-icon {
            font-size: 2rem;
            width: 56px; height: 56px;
            border-radius: 14px;
            display: flex; align-items: center; justify-content: center;
            margin-bottom: 14px;
            position: relative; z-index: 1;
        }
        .home-card-title {
            font-size: 1rem; font-weight: 700;
            margin-bottom: 6px;
            position: relative; z-index: 1;
        }
        .home-card-desc {
            font-size: 0.82rem; color: var(--text2);
            line-height: 1.55;
            position: relative; z-index: 1;
        }

        /* ===== LANG TOGGLE ===== */

        /* ===== THEME TOGGLE ===== */
        .install-btn {
            display: none; align-items: center; gap: 6px; padding: 8px 14px;
            background: linear-gradient(135deg, rgba(124,58,237,0.12), rgba(59,130,246,0.12));
            border: 1px solid rgba(124,58,237,0.25); border-radius: 10px;
            color: var(--p1); font-size: 0.78rem; font-weight: 600;
            cursor: pointer; transition: all 0.2s; min-height: 44px;
            font-family: inherit; white-space: nowrap;
        }
        .install-btn:hover { background: linear-gradient(135deg, rgba(124,58,237,0.2), rgba(59,130,246,0.2)); border-color: rgba(124,58,237,0.4); transform: translateY(-1px); }
        .install-btn svg { flex-shrink: 0; }
        .theme-toggle {
            width: 44px; height: 44px; border-radius: 12px;
            background: var(--input-bg); border: 1px solid var(--border);
            display: flex; align-items: center; justify-content: center;
            cursor: pointer; transition: all 0.2s; font-size: 1.1rem;
            color: var(--text2); position: relative;
        }
        .theme-toggle:hover { background: var(--panel-hover); color: var(--text); border-color: var(--text3); }
        .theme-toggle .icon-sun { display: block; }
        .theme-toggle .icon-moon { display: none; }
        [data-theme="dark"] .theme-toggle .icon-sun { display: none; }
        [data-theme="dark"] .theme-toggle .icon-moon { display: block; }

        /* ===== PRIVACY BANNER ===== */
        .privacy-banner {
            display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px;
            margin-bottom: 28px; padding: 20px;
            background: linear-gradient(135deg, rgba(124,58,237,0.06) 0%, rgba(6,182,212,0.06) 100%);
            border: 1px solid rgba(124,58,237,0.12);
            border-radius: 16px;
        }
        .privacy-item {
            display: flex; align-items: center; gap: 10px; padding: 4px 0;
        }
        .privacy-icon {
            width: 40px; height: 40px; border-radius: 12px;
            background: rgba(124,58,237,0.1); display: flex;
            align-items: center; justify-content: center; font-size: 1.2rem; flex-shrink: 0;
        }
        .privacy-title {
            font-size: 0.82rem; font-weight: 700; color: var(--text);
        }
        .privacy-desc {
            font-size: 0.72rem; color: var(--text2); line-height: 1.3;
        }
        [data-theme="dark"] .privacy-banner {
            background: linear-gradient(135deg, rgba(124,58,237,0.1) 0%, rgba(6,182,212,0.08) 100%);
            border-color: rgba(124,58,237,0.2);
        }
        [data-theme="dark"] .privacy-icon {
            background: rgba(124,58,237,0.2);
        }
        /* PDF Counter */
        .pdf-counter-banner {
            display: flex; align-items: center; justify-content: center; gap: 8px;
            padding: 10px 20px; margin-bottom: 20px; border-radius: 12px;
            background: linear-gradient(135deg, rgba(245,158,11,0.08), rgba(239,68,68,0.06));
            border: 1px solid rgba(245,158,11,0.2);
            font-size: 0.82rem; font-weight: 600; color: var(--text2);
        }
        .pdf-counter-icon { font-size: 1rem; }
        .pdf-counter-banner .pdf-counter-num {
            font-weight: 800; color: rgba(245,158,11,0.9); font-size: 0.9rem;
        }
        [data-theme="dark"] .pdf-counter-banner {
            background: linear-gradient(135deg, rgba(245,158,11,0.1), rgba(239,68,68,0.08));
            border-color: rgba(245,158,11,0.25);
        }
        /* PDF to Audio */
        .pdf2audio-text-area {
            background: var(--bg); border: 1px solid var(--border); border-radius: 10px;
            padding: 14px; font-size: 0.82rem; line-height: 1.7; color: var(--text);
            max-height: 200px; overflow-y: auto; margin-bottom: 14px; white-space: pre-wrap;
        }
        .pdf2audio-controls {
            display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 10px;
        }
        .pdf2audio-sep { color: var(--border); font-size: 1.2rem; }
        .pdf2audio-label { font-size: 0.75rem; font-weight: 600; color: var(--text3); }
        .pdf2audio-progress {
            height: 4px; background: var(--border); border-radius: 4px;
            overflow: hidden; margin-bottom: 6px;
        }
        .pdf2audio-progress-bar {
            height: 100%; width: 0%; background: linear-gradient(90deg, #7c3aed, #06b6d4);
            border-radius: 4px; transition: width 0.3s;
        }
        .pdf2audio-info { font-size: 0.72rem; color: var(--text3); }

        /* Resume Generator — template preview strip */
        .resume-tpl-preview {
            display: flex; gap: 8px; margin-top: 12px; overflow-x: auto;
            padding: 4px 0; scroll-snap-type: x mandatory;
        }
        .resume-tpl-card {
            flex: 0 0 auto; width: 70px; cursor: pointer; text-align: center;
            border-radius: 8px; padding: 6px 4px; transition: all 0.2s;
            border: 2px solid transparent; scroll-snap-align: start;
        }
        .resume-tpl-card:hover { border-color: var(--border); background: var(--bg2); }
        .resume-tpl-card.active { border-color: var(--primary); background: rgba(124,58,237,0.08); }
        .resume-tpl-card span { font-size: 0.62rem; font-weight: 600; color: var(--text2); display: block; margin-top: 4px; }
        .resume-tpl-mini {
            width: 50px; height: 65px; margin: 0 auto; border-radius: 4px;
            background: #fff; border: 1px solid #e0e0e0; position: relative; overflow: hidden;
        }
        /* Resume photo upload */
        .resume-photo-upload {
            display: inline-flex; align-items: center; gap: 8px; cursor: pointer;
            padding: 6px 14px; border: 2px dashed var(--border); border-radius: 10px;
            transition: all 0.2s; background: var(--bg);
        }
        .resume-photo-upload:hover { border-color: var(--primary); background: rgba(124,58,237,0.04); }
        .resume-photo-preview {
            width: 36px; height: 36px; border-radius: 50%; display: flex; align-items: center;
            justify-content: center; font-size: 1.1rem; background: var(--bg2); overflow: hidden;
        }
        .resume-photo-preview img {
            width: 100%; height: 100%; object-fit: cover; border-radius: 50%;
        }
        .resume-photo-text { font-size: 0.78rem; font-weight: 500; color: var(--text2); }

        /* Resume skill/language row with level slider */
        .resume-skill-row {
            display: flex; align-items: center; gap: 8px; margin-bottom: 6px; flex-wrap: wrap;
        }
        .resume-skill-row input[type="text"] {
            flex: 1; min-width: 100px; padding: 6px 10px; border-radius: 8px;
            border: 1px solid var(--border); background: var(--bg); color: var(--text);
            font-size: 0.82rem;
        }
        .resume-skill-row input[type="range"] {
            width: 80px; accent-color: var(--primary);
        }
        .resume-skill-row .skill-level-label {
            font-size: 0.68rem; color: var(--text3); min-width: 28px; text-align: center;
        }
        .resume-skill-row .btn-remove-skill {
            background: none; border: none; color: var(--text3); cursor: pointer;
            font-size: 1rem; padding: 2px 6px; border-radius: 6px; transition: all 0.15s;
        }
        .resume-skill-row .btn-remove-skill:hover { color: #e74c3c; background: rgba(231,76,60,0.1); }

        /* ===== HOME FOOTER (suggestion & donation) ===== */
        .home-footer {
            margin-top: 40px; padding: 20px 0 8px; border-top: 1px solid var(--border);
            text-align: center; opacity: 0.7; transition: opacity 0.3s;
        }
        .home-footer:hover { opacity: 1; }
        .home-footer-text { font-size: 0.75rem; color: var(--text3); display: block; margin-bottom: 10px; }
        .home-footer-links { display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; }
        .home-footer-link {
            font-size: 0.75rem; color: var(--text3); text-decoration: none;
            display: inline-flex; align-items: center; gap: 5px;
            padding: 4px 10px; border-radius: 8px; transition: color 0.2s, background 0.2s;
            background: none; border: none; cursor: pointer;
            font-family: inherit; font-weight: inherit;
        }
        .home-footer-link:hover { color: var(--primary); background: rgba(124,58,237,0.08); }
        .home-footer-link svg { flex-shrink: 0; }

        /* Pix modal */
        .pix-modal-overlay {
            display: none; position: fixed; inset: 0; z-index: 9999;
            background: rgba(0,0,0,0.45); backdrop-filter: blur(4px);
            align-items: center; justify-content: center;
        }
        .pix-modal-overlay.visible { display: flex; }
        .pix-modal {
            background: var(--card); border-radius: 18px; padding: 32px 28px;
            max-width: 380px; width: 90%; box-shadow: 0 12px 40px rgba(0,0,0,0.25);
            text-align: center; position: relative; animation: pixFadeIn 0.25s ease;
        }
        @keyframes pixFadeIn { from { opacity: 0; transform: scale(0.95) translateY(10px); } to { opacity: 1; transform: scale(1) translateY(0); } }
        .pix-modal-close {
            position: absolute; top: 10px; right: 14px; background: none; border: none;
            font-size: 1.5rem; color: var(--text3); cursor: pointer; line-height: 1;
        }
        .pix-modal-close:hover { color: var(--text1); }
        .pix-modal-icon { color: #e74c3c; margin-bottom: 8px; }
        .pix-modal-title { font-size: 1.1rem; font-weight: 700; color: var(--text1); margin-bottom: 6px; }
        .pix-modal-desc { font-size: 0.8rem; color: var(--text3); margin-bottom: 16px; line-height: 1.5; }
        .pix-modal-label { font-size: 0.7rem; color: var(--text3); display: block; margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.05em; }
        .pix-modal-key-row { display: flex; gap: 6px; }
        .pix-modal-key {
            flex: 1; padding: 10px 14px; border-radius: 10px; border: 1.5px solid var(--border);
            background: var(--bg2); color: var(--text1); font-size: 1rem; font-weight: 600;
            text-align: center; font-family: monospace; letter-spacing: 0.05em;
        }
        .pix-modal-copy {
            padding: 10px 14px; border-radius: 10px; border: 1.5px solid var(--border);
            background: var(--bg2); color: var(--text2); cursor: pointer; transition: all 0.2s;
        }
        .pix-modal-copy:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
        .pix-qr-wrap { display: flex; justify-content: center; margin: 12px 0; }
        .pix-qr-wrap canvas {
            border-radius: 12px; background: #fff; padding: 8px;
            width: 180px; height: 180px;
        }
        .pix-modal-thanks { font-size: 0.72rem; color: var(--text3); margin-top: 14px; }
        .suggest-mailto-btn {
            display: inline-flex; align-items: center; gap: 6px; margin-top: 14px;
            padding: 10px 20px; border-radius: 10px; font-size: 0.85rem; font-weight: 600;
            background: var(--primary); color: #fff; text-decoration: none; transition: opacity 0.2s;
        }
        .suggest-mailto-btn:hover { opacity: 0.85; }

        /* ===== HOME SECTION HEADER ===== */
        .home-section-title {
            font-size: 0.82rem; font-weight: 700; text-transform: uppercase;
            letter-spacing: 0.08em; color: var(--text3); margin: 28px 0 14px;
            padding-bottom: 8px; border-bottom: 1px solid var(--border);
        }
        .home-section-title:first-of-type { margin-top: 0; }

        /* ===== CATEGORY ICON COLORS ===== */
        .cat-organize { background: rgba(231,76,60,0.1); color: #e74c3c; }
        .cat-optimize { background: rgba(243,156,18,0.1); color: #f39c12; }
        .cat-topdf { background: rgba(39,174,96,0.1); color: #27ae60; }
        .cat-frompdf { background: rgba(52,152,219,0.1); color: #3498db; }
        .cat-edit { background: rgba(155,89,182,0.1); color: #9b59b6; }
        .cat-security { background: rgba(26,188,156,0.1); color: #1abc9c; }
        .cat-extra { background: rgba(243,156,18,0.1); color: #f39c12; }

        /* ===== OVERLAY (mobile) ===== */
        .overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.65); z-index: 150; backdrop-filter: blur(3px); }
        .overlay.active { display: block; }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1200px) {
            .home-grid { grid-template-columns: repeat(4, 1fr); }
        }
        @media (max-width: 900px) {
            .navbar-links { display: none; }
            .hamburger { display: flex; }
            .content { padding: 24px 16px; max-width: 100%; }
            .options-grid { grid-template-columns: 1fr 1fr; }
            .home-grid { grid-template-columns: repeat(3, 1fr); }
            .home-title { font-size: 1.5rem; }
            .home-subtitle { font-size: 0.9rem; }
            .topbar-badge { display: none; }
            .drop-zone { padding: 36px 18px; border-radius: 16px; }
            .drop-icon { font-size: 2.2rem; }
            .result-card { padding: 22px 18px; }
            .navbar-right { gap: 8px; }
            .lang-toggle { width: 58px; height: 28px; font-size: 0.65rem; }
            .lang-toggle .lang-flag { font-size: 0.75rem; }
        }
        @media (max-width: 600px) {
            .install-btn span { display: none; }
            .install-btn { padding: 8px 10px; min-width: 44px; justify-content: center; }
            .navbar-right { gap: 6px; flex-shrink: 0; }
            .navbar-inner { padding: 0 14px; gap: 8px; }
            .navbar-left { gap: 10px; }
            .logo-svg { width: 32px; height: 32px; }
            .logo-text { font-size: 1.05rem; }
            .lang-toggle { width: auto; min-width: 0; height: 28px; padding: 0 8px; font-size: 0.62rem; gap: 3px; }
            .lang-toggle .lang-flag { font-size: 0.72rem; }
            .lang-toggle .lang-code { font-size: 0.6rem; }
            .theme-toggle { width: 36px; height: 36px; border-radius: 10px; font-size: 0.95rem; flex-shrink: 0; }
            .home-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
            .home-card { padding: 18px 14px; border-radius: 14px; }
            .home-card-icon { width: 44px; height: 44px; font-size: 1.6rem; border-radius: 12px; margin-bottom: 10px; }
            .home-card-title { font-size: 0.88rem; }
            .home-card-desc { font-size: 0.75rem; }
            .home-hero { margin-bottom: 24px; padding: 8px 4px; }
            .privacy-banner { grid-template-columns: 1fr; gap: 8px; padding: 16px; margin-bottom: 20px; }
            .privacy-item { gap: 10px; }
            .privacy-icon { width: 36px; height: 36px; font-size: 1rem; border-radius: 10px; }
            .privacy-title { font-size: 0.8rem; }
            .privacy-desc { font-size: 0.7rem; }
            .home-title { font-size: 1.35rem; }
            .home-subtitle { font-size: 0.9rem; }
            .home-section-title { font-size: 0.75rem; margin-bottom: 8px; letter-spacing: 0.08em; }
            .content { padding: 20px 12px; }
            .tool-header { flex-direction: column; gap: 10px; }
            .tool-title { font-size: 1.3rem; }
            .tool-desc { font-size: 0.82rem; }
            .tool-header-icon { width: 48px; height: 48px; font-size: 1.4rem; }
            .drop-zone { padding: 28px 14px; border-radius: 14px; }
            .drop-icon { font-size: 2rem; margin-bottom: 10px; }
            .drop-title { font-size: 0.92rem; }
            .drop-hint { font-size: 0.78rem; }
            .options-card { padding: 16px; border-radius: 14px; }
            .options-grid { grid-template-columns: 1fr; }
            .options-title { font-size: 0.85rem; }
            /* Prevent iOS auto-zoom on input focus (requires >= 16px) */
            .option-input, .option-select, input[type="text"], input[type="number"], input[type="password"], textarea, select {
                font-size: 16px !important; min-height: 44px;
            }
            .btn-convert { padding: 14px 18px; font-size: 0.88rem; border-radius: 12px; }
            .result-card { padding: 20px 14px; border-radius: 14px; }
            .result-icon { font-size: 2rem; }
            .result-title { font-size: 0.95rem; }
            .result-desc { font-size: 0.78rem; }
            .result-actions { flex-direction: column; gap: 8px; }
            .btn-download, .btn-reset { width: 100%; justify-content: center; padding: 12px 16px; }
            .file-item { padding: 9px 10px; gap: 8px; }
            .file-icon { width: 28px; height: 28px; font-size: 0.9rem; }
            .file-name { font-size: 0.8rem; }
            .file-size { font-size: 0.7rem; }
            .img-preview-card { padding: 10px; border-radius: 12px; }
            .img-preview-thumb-wrap { width: 60px; height: 60px; }
            .img-preview-name { font-size: 0.78rem; }
            .img-preview-size { font-size: 0.68rem; }
            .progress-info { font-size: 0.72rem; }
            .toast { min-width: auto; max-width: calc(100vw - 28px); margin: 0 auto; font-size: 0.82rem; padding: 12px 14px; }
            .toast-title { font-size: 0.82rem; }
            .toast-desc { font-size: 0.72rem; }
            /* Mobile menu improvements */
            .mobile-menu { padding: 10px; top: 62px; }
            .mobile-menu .nav-items-grid { gap: 5px; }
            .mobile-menu .nav-item { padding: 7px 10px; font-size: 0.73rem; border-radius: 8px; }
            .mobile-menu .section-label { padding: 12px 6px 4px; font-size: 0.58rem; }
            /* Sign canvas responsive */
            #sign-canvas, #sign-canvas-typed { width: 100% !important; height: auto !important; min-height: 120px; }
            /* Compress level cards */
            .compress-level-card { padding: 10px 6px !important; }
            .compress-level-card div:first-child { font-size: 1.1rem !important; }
            .compress-level-card div:nth-child(2) { font-size: 0.78rem !important; }
            .compress-level-card div:nth-child(3) { font-size: 0.65rem !important; }
            /* Video preview */
            .video-preview { flex-direction: column; }
            .video-preview video { width: 100%; height: auto; }
            .video-meta { width: 100%; }
            /* Stats row */
            .stats-row { gap: 4px; }
            .stat-pill { padding: 4px 6px; }
            .stat-num { font-size: 0.8rem; }
            .stat-lbl { font-size: 0.55rem; }
            /* Back to top mobile position */
            #back-to-top { bottom: 16px; right: 16px; width: 42px; height: 42px; font-size: 1.1rem; }
        }
        @media (max-width: 400px) {
            .logo-text { font-size: 1rem; }
            .logo-svg { width: 30px; height: 30px; }
            .navbar-left { gap: 6px; }
            .navbar-inner { padding: 0 10px; gap: 6px; }
            .theme-toggle { width: 34px; height: 34px; }
            .install-btn { padding: 6px 8px; min-width: 38px; }
            .topbar-badge { display: none; }
        }
        @media (max-width: 340px) {
            .content { padding: 16px 10px; }
            .navbar-inner { padding: 0 8px; gap: 4px; }
            .navbar-right { gap: 4px; }
            .lang-toggle { width: 32px; height: 28px; padding: 0; }
            .lang-toggle .lang-code { display: none; }
            .lang-toggle .lang-flag { font-size: 0.8rem; }
            .logo-text { font-size: 0.95rem; }
            .logo-svg { width: 26px; height: 26px; }
            .install-btn { display: none; }
            .home-grid { grid-template-columns: 1fr; gap: 8px; }
            .home-card { padding: 16px 14px; display: flex; flex-direction: row; align-items: center; gap: 14px; }
            .home-card-icon { margin-bottom: 0; width: 40px; height: 40px; font-size: 1.4rem; flex-shrink: 0; }
            .home-card-title { font-size: 0.85rem; margin-bottom: 2px; }
            .home-card-desc { font-size: 0.72rem; }
            .home-title { font-size: 1.15rem; }
            .home-subtitle { font-size: 0.8rem; }
            .drop-zone { padding: 24px 12px; }
            .btn-convert { padding: 12px 14px; font-size: 0.85rem; }
        }
        /* Touch-friendly improvements */
        @media (hover: none) and (pointer: coarse) {
            .home-card:hover { transform: none; box-shadow: var(--card-shadow); }
            .home-card:active { transform: scale(0.97); background: var(--panel-hover); }
            .btn-convert:hover { transform: none; }
            .btn-convert:active { transform: scale(0.97); }
            .nav-item:active { background: rgba(124,58,237,0.08); }
            .drop-zone:hover { transform: none; }
            .drop-zone:active { border-color: rgba(124,58,237,0.65); background: rgba(124,58,237,0.06); }
        }
        /* Safe area insets for notched devices */
        @supports (padding: env(safe-area-inset-bottom)) {
            .mobile-menu { padding-bottom: calc(16px + env(safe-area-inset-bottom)); }
            #back-to-top { bottom: calc(16px + env(safe-area-inset-bottom)); }
        }