:root{--font-sans:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;--bg-primary:#f8fafc;--bg-secondary:#fff;--bg-tertiary:#f1f5f9;--bg-card:#fff;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#94a3b8;--brand-primary:#4f46e5;--brand-primary-hover:#4338ca;--brand-light:#eef2ff;--accent-success:#10b981;--accent-success-light:#ecfdf5;--accent-warning:#f59e0b;--accent-warning-light:#fffbeb;--border-color:#e2e8f0;--border-hover:#cbd5e1;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000001a, 0 2px 4px -2px #0000001a;--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -4px #0000001a;--shadow-xl:0 20px 25px -5px #0000001a, 0 8px 10px -6px #0000001a;--radius-sm:8px;--radius-md:12px;--radius-lg:18px;--radius-xl:24px}[data-theme=dark]{--bg-primary:#090d16;--bg-secondary:#111827;--bg-tertiary:#1f2937;--bg-card:#131c2e;--text-primary:#f8fafc;--text-secondary:#cbd5e1;--text-muted:#64748b;--brand-primary:#6366f1;--brand-primary-hover:#4f46e5;--brand-light:#6366f126;--accent-success:#34d399;--accent-success-light:#10b98126;--accent-warning:#fbbf24;--accent-warning-light:#f59e0b26;--border-color:#1e293b;--border-hover:#334155;--shadow-sm:0 1px 2px 0 #0000004d;--shadow-md:0 4px 6px -1px #0000004d;--shadow-lg:0 10px 15px -3px #0006;--shadow-xl:0 20px 25px -5px #00000080}*{box-sizing:border-box;scrollbar-width:thin;scrollbar-color:#94a3b859 transparent;margin:0;padding:0}[data-theme=dark] *{scrollbar-color:#64748b73 transparent}html,body,*,:before,:after{scrollbar-width:thin!important;scrollbar-color:#94a3b873 transparent!important}[data-theme=dark] html,[data-theme=dark] body,[data-theme=dark] *,[data-theme=dark] 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20px;transition:all .25s;position:relative}.dropzone:hover,.dropzone.drag-active{border-color:var(--brand-primary);background:var(--brand-light);transform:translateY(-2px)}.dropzone-icon{background:var(--bg-card);width:64px;height:64px;color:var(--brand-primary);box-shadow:var(--shadow-md);border-radius:50%;justify-content:center;align-items:center;margin-bottom:16px;display:inline-flex}.dropzone-title{margin-bottom:8px;font-size:1.25rem;font-weight:700}.dropzone-sub{color:var(--text-secondary);margin-bottom:20px;font-size:.9rem}.btn-browse{background:var(--brand-primary);color:#fff;border-radius:var(--radius-md);cursor:pointer;border:none;padding:12px 28px;font-size:.95rem;font-weight:600;transition:all .2s;box-shadow:0 4px 14px #4f46e566}.btn-browse:hover{background:var(--brand-primary-hover);transform:scale(1.02)}.sample-trigger-row{margin-top:18px}.btn-sample{color:var(--brand-primary);cursor:pointer;background:0 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#0000000a}.advanced-toggle:hover{border-color:var(--brand-primary);background:var(--bg-primary);transform:translateY(-1px)}.advanced-toggle-left{align-items:center;gap:10px;display:flex}.gear-badge{background:var(--brand-light);width:28px;height:28px;color:var(--brand-primary);border-radius:var(--radius-sm);justify-content:center;align-items:center;display:inline-flex}.chevron-indicator{color:var(--text-muted);font-size:1.1rem;font-weight:800;transition:transform .2s}.advanced-settings-body{background:var(--bg-card);border:1.5px solid var(--border-color);border-bottom-left-radius:var(--radius-md);border-bottom-right-radius:var(--radius-md);border-top:none;grid-template-columns:1fr 1fr;gap:16px;padding:18px;animation:.2s ease-out fadeInSettings;display:none}.advanced-settings-body.open{display:grid}.advanced-accordion-wrapper:has(.advanced-settings-body.open) .advanced-toggle{border-color:var(--brand-primary);border-bottom-right-radius:0;border-bottom-left-radius:0}@keyframes 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10px}.stat-label{color:var(--text-muted);text-transform:uppercase;margin-bottom:4px;font-size:.75rem;font-weight:600}.stat-val-orig{color:#ef4444;font-size:1.2rem;font-weight:800}.stat-val-comp{color:var(--accent-success);font-size:1.35rem;font-weight:850}.stat-val-saved{color:var(--brand-primary);font-size:1.2rem;font-weight:800}.comparison-container{grid-template-columns:1fr 1fr;gap:16px;margin-bottom:20px;display:grid}.preview-col{text-align:center}.preview-tag{color:var(--text-secondary);margin-bottom:8px;font-size:.8rem;font-weight:700}.preview-img-wrapper{border-radius:var(--radius-md);border:1px solid var(--border-color);background:#000;justify-content:center;align-items:center;height:220px;display:flex;overflow:hidden}.preview-img-wrapper img{object-fit:contain;max-width:100%;max-height:100%}.btn-download-main{color:#fff;border-radius:var(--radius-md);cursor:pointer;background:linear-gradient(135deg,#10b981,#059669);border:none;justify-content:center;align-items:center;gap:12px;width:100%;padding:18px 24px;font-size:1.2rem;font-weight:800;transition:all .2s;display:flex;box-shadow:0 8px 20px #10b98166}.btn-download-main:hover{transform:translateY(-2px);box-shadow:0 12px 24px #10b98180}.btn-download-main:active{transform:translateY(0)}.secondary-actions{justify-content:center;align-items:center;gap:16px;margin-top:14px;display:flex}.btn-ghost{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;padding:8px 12px;font-size:.9rem;font-weight:600}.btn-ghost:hover{color:var(--text-primary);text-decoration:underline}.batch-queue-container{border-top:1px solid 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18px;display:flex}.email-text-group{flex-direction:column;display:flex}.email-label-sub{text-transform:uppercase;color:var(--text-muted);letter-spacing:.04em;font-size:.72rem;font-weight:700}.email-address-text{color:var(--text-primary);word-break:break-all;font-size:1.1rem;font-weight:800}.btn-copy-email{background:var(--bg-card);border:1px solid var(--border-color);color:var(--text-primary);border-radius:var(--radius-sm);cursor:pointer;white-space:nowrap;flex-shrink:0;padding:8px 14px;font-size:.85rem;font-weight:700;transition:all .15s}.btn-copy-email:hover{background:var(--brand-primary);color:#fff;border-color:var(--brand-primary)}.btn-copy-email:active{transform:scale(.96)}.tool-switch-wrapper{justify-content:center;margin-top:10px;margin-bottom:24px;display:flex}.tool-switch-tabs{background:var(--bg-card);border:1.5px solid var(--border-color);border-radius:9999px;align-items:center;gap:6px;max-width:100%;padding:5px;display:inline-flex;box-shadow:0 4px 16px #0000000d}[data-theme=dark] .tool-switch-tabs{background:#111827;border-color:#27354f;box-shadow:0 8px 24px #0006}.tool-switch-tab{color:var(--text-secondary);cursor:pointer;text-align:center;-webkit-user-select:none;user-select:none;background:0 0;border:1.5px solid #0000;border-radius:9999px;align-items:center;gap:8px;padding:8px 18px;transition:all .2s cubic-bezier(.16,1,.3,1);display:inline-flex}.tool-switch-tab:hover{color:var(--text-primary);background:var(--bg-tertiary)}.tool-switch-tab.active{background:linear-gradient(135deg, var(--brand-primary), #6366f1);color:#fff;border-color:#fff3;box-shadow:0 4px 14px #4f46e559}.tool-switch-tab .tab-icon{background:#ffffff24;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:26px;height:26px;transition:transform .2s;display:flex}.tool-switch-tab:not(.active) .tab-icon{background:var(--brand-light);color:var(--brand-primary)}.tool-switch-tab.active .tab-icon{color:#fff;background:#ffffff38;transform:scale(1.05)}.tab-main-title{letter-spacing:-.01em;font-size:.95rem;font-weight:800}.tab-chip-pill{background:var(--bg-tertiary);color:var(--text-muted);border-radius:9999px;padding:2px 7px;font-size:.7rem;font-weight:750;transition:all .2s;display:inline-block}.tool-switch-tab.active .tab-chip-pill{color:#fff;background:#ffffff38}.tab-chip-pill.highlight{color:#10b981;background:#10b98126}.tool-switch-tab.active .tab-chip-pill.highlight{color:#fff;background:#10b981}.nav-tool-btn{cursor:pointer;color:var(--text-secondary);border-radius:var(--radius-sm);background:0 0;border:1px solid #0000;padding:6px 14px;font-family:inherit;font-size:.9rem;font-weight:700;transition:all .15s}.nav-tool-btn:hover{color:var(--brand-primary);background:var(--brand-light)}.nav-tool-btn.active{color:#fff;background:var(--brand-primary)}@media 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(width<=480px){.converter-formats-grid{grid-template-columns:1fr}}.format-card{background:var(--bg-card);border:2px solid var(--border-color);border-radius:var(--radius-lg);cursor:pointer;-webkit-user-select:none;user-select:none;flex-direction:column;padding:16px;transition:all .2s cubic-bezier(.16,1,.3,1);display:flex;position:relative}.format-card:hover{border-color:var(--brand-primary);transform:translateY(-2px);box-shadow:0 8px 20px #00000014}.format-card.active{border-color:var(--brand-primary);background:linear-gradient(135deg,#4f46e514,#6366f108);box-shadow:0 0 0 4px #6366f12e,0 8px 24px #4f46e526}[data-theme=dark] .format-card.active{background:linear-gradient(135deg,#4f46e538,#1e293b99);box-shadow:0 0 0 4px #6366f147,0 8px 24px #00000080}.format-card-top{justify-content:space-between;align-items:center;margin-bottom:10px;display:flex}.format-badge-icon{text-transform:uppercase;letter-spacing:.06em;border-radius:8px;padding:4px 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var(--border-color);border-radius:var(--radius-md);margin-bottom:16px;padding:14px 18px}.slider-header-row{justify-content:space-between;align-items:center;margin-bottom:10px;display:flex}.quality-display-badge{color:var(--brand-primary);background:var(--brand-light);border:1px solid #6366f133;border-radius:9999px;padding:3px 10px;font-size:.82rem;font-weight:800}.pdf-layout-options{flex-direction:column;gap:10px;margin-top:8px;display:flex}.pdf-radio-label{color:var(--text-primary);cursor:pointer;align-items:center;gap:10px;font-size:.88rem;font-weight:600;display:flex}.pdf-radio-label input[type=radio]{accent-color:var(--brand-primary);cursor:pointer;width:18px;height:18px}.converter-preview-area{justify-content:center;margin:18px 0;display:flex}.converter-preview-area .preview-img-wrapper{max-width:480px;max-height:320px;margin:0 auto}.pdf-preview-card{background:var(--bg-primary);border-radius:var(--radius-lg);text-align:left;border:2px dashed #ef444466;align-items:center;gap:16px;padding:24px 32px;display:flex}.pdf-preview-icon{font-size:2.5rem}.pdf-preview-title{color:var(--text-primary);font-size:1.15rem;font-weight:800}.pdf-preview-sub{color:var(--text-muted);margin-top:4px;font-size:.8rem}