:root{--color-bg-primary: #f8f9fc;--color-bg-secondary: #ffffff;--color-bg-tertiary: #f1f3f8;--color-bg-elevated: #ffffff;--color-bg-hover: #eef0f6;--color-bg-active: #e4e7ef;--color-bg-drop: rgba(99, 102, 241, .06);--color-bg-drop-active: rgba(99, 102, 241, .12);--color-text-primary: #0f172a;--color-text-secondary: #475569;--color-text-tertiary: #94a3b8;--color-text-inverse: #ffffff;--color-border: #e2e8f0;--color-border-light: #f1f5f9;--color-border-focus: #6366f1;--color-border-drop: #6366f1;--color-primary: #6366f1;--color-primary-hover: #5457e5;--color-accent: #6366f1;--color-accent-hover: #5457e5;--color-accent-active: #4f46e5;--color-accent-light: rgba(99, 102, 241, .1);--color-accent-subtle: rgba(99, 102, 241, .06);--color-success: #10b981;--color-success-light: rgba(16, 185, 129, .1);--color-warning: #f59e0b;--color-warning-light: rgba(245, 158, 11, .1);--color-danger: #ef4444;--color-danger-light: rgba(239, 68, 68, .1);--color-info: #3b82f6;--color-info-light: rgba(59, 130, 246, .1);--shadow-xs: 0 1px 2px rgba(15, 23, 42, .04);--shadow-sm: 0 1px 3px rgba(15, 23, 42, .06), 0 1px 2px rgba(15, 23, 42, .04);--shadow-md: 0 4px 6px -1px rgba(15, 23, 42, .06), 0 2px 4px -2px rgba(15, 23, 42, .04);--shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, .06), 0 4px 6px -4px rgba(15, 23, 42, .04);--shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, .08), 0 8px 10px -6px rgba(15, 23, 42, .04);--shadow-glow: 0 0 0 3px rgba(99, 102, 241, .15);--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "JetBrains Mono", "Fira Code", "Consolas", monospace;--text-xs: .75rem;--text-sm: .8125rem;--text-base: .875rem;--text-md: 1rem;--text-lg: 1.125rem;--text-xl: 1.25rem;--text-2xl: 1.5rem;--text-3xl: 1.875rem;--text-4xl: 2.25rem;--leading-tight: 1.25;--leading-normal: 1.5;--leading-relaxed: 1.625;--weight-normal: 400;--weight-medium: 500;--weight-semibold: 600;--weight-bold: 700;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-8: 2rem;--space-10: 2.5rem;--space-12: 3rem;--space-16: 4rem;--space-20: 5rem;--radius-sm: 6px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-2xl: 20px;--radius-full: 9999px;--transition-fast: .12s ease;--transition-base: .2s ease;--transition-slow: .3s ease;--transition-spring: .3s cubic-bezier(.34, 1.56, .64, 1);--z-base: 0;--z-above: 10;--z-sticky: 100;--z-overlay: 200;--z-modal: 300;--z-toast: 400;--header-height: 56px;--sidebar-width: 240px;--max-content-width: 1320px}html[data-theme=dark],:root[data-theme=dark]{--color-bg-primary: #0b0f19;--color-bg-secondary: #111827;--color-bg-tertiary: #1a2234;--color-bg-elevated: #1f293d;--color-bg-hover: #26334d;--color-bg-active: #2e3e5d;--color-bg-drop: rgba(99, 102, 241, .12);--color-bg-drop-active: rgba(99, 102, 241, .22);--color-text-primary: #f1f5f9;--color-text-secondary: #94a3b8;--color-text-tertiary: #64748b;--color-text-inverse: #0b0f19;--color-border: #243048;--color-border-light: #1e283c;--color-border-focus: #818cf8;--color-border-drop: #818cf8;--color-primary: #818cf8;--color-primary-hover: #939cf9;--color-accent: #818cf8;--color-accent-hover: #939cf9;--color-accent-active: #6366f1;--color-accent-light: rgba(129, 140, 248, .18);--color-accent-subtle: rgba(129, 140, 248, .08);--color-success: #34d399;--color-success-light: rgba(52, 211, 153, .18);--color-warning: #fbbf24;--color-warning-light: rgba(251, 191, 36, .18);--color-danger: #f87171;--color-danger-light: rgba(248, 113, 113, .18);--color-info: #60a5fa;--color-info-light: rgba(96, 165, 250, .18);--shadow-xs: 0 1px 2px rgba(0, 0, 0, .4);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .5), 0 1px 2px rgba(0, 0, 0, .35);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .55), 0 2px 4px -2px rgba(0, 0, 0, .35);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .6), 0 4px 6px -4px rgba(0, 0, 0, .4);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .65), 0 8px 10px -6px rgba(0, 0, 0, .45);--shadow-glow: 0 0 0 3px rgba(129, 140, 248, .25)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%;-moz-text-size-adjust:100%;text-size-adjust:100%;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}body{font-family:var(--font-family);font-size:var(--text-base);line-height:var(--leading-normal);color:var(--color-text-primary);background-color:var(--color-bg-primary);min-height:100vh;transition:background-color var(--transition-slow),color var(--transition-slow)}#app{min-height:100vh;display:flex;flex-direction:column}h1,h2,h3,h4,h5,h6{font-weight:var(--weight-semibold);line-height:var(--leading-tight);color:var(--color-text-primary)}h1{font-size:var(--text-3xl)}h2{font-size:var(--text-2xl)}h3{font-size:var(--text-xl)}h4{font-size:var(--text-lg)}p{color:var(--color-text-secondary);line-height:var(--leading-relaxed)}a{color:var(--color-accent);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-accent-hover)}:focus-visible{outline:2px solid var(--color-border-focus);outline-offset:2px;border-radius:var(--radius-sm)}::selection{background-color:var(--color-accent);color:var(--color-text-inverse)}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background-color:var(--color-border);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background-color:var(--color-text-tertiary)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}.container{width:100%;max-width:var(--max-content-width);margin:0 auto;padding:0 var(--space-6)}img,svg{display:block;max-width:100%}ul,ol{list-style:none}button{font-family:inherit;font-size:inherit;cursor:pointer;border:none;background:none;color:inherit}input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;background:none;border:none}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-2) var(--space-4);font-size:var(--text-sm);font-weight:var(--weight-medium);line-height:1;border-radius:var(--radius-md);transition:all var(--transition-fast);white-space:nowrap;-webkit-user-select:none;user-select:none;height:36px}.btn:disabled{opacity:.5;cursor:not-allowed;pointer-events:none}.btn-primary{background:var(--color-accent);color:#fff;box-shadow:var(--shadow-sm)}.btn-primary:hover{background:var(--color-accent-hover);box-shadow:var(--shadow-md);transform:translateY(-1px)}.btn-primary:active{background:var(--color-accent-active);transform:translateY(0);box-shadow:var(--shadow-xs)}.btn-secondary{background:var(--color-bg-secondary);color:var(--color-text-primary);border:1px solid var(--color-border)}.btn-secondary:hover{background:var(--color-bg-hover);border-color:var(--color-text-tertiary)}.btn-ghost{background:transparent;color:var(--color-text-secondary)}.btn-ghost:hover{background:var(--color-bg-hover);color:var(--color-text-primary)}.btn-danger{background:var(--color-danger);color:#fff}.btn-danger:hover{background:#dc2626}.btn-lg{height:44px;padding:var(--space-3) var(--space-6);font-size:var(--text-base);border-radius:var(--radius-lg)}.btn-sm{height:28px;padding:var(--space-1) var(--space-3);font-size:var(--text-xs)}.btn-icon{width:36px;padding:0}.btn-icon.btn-sm{width:28px}.app-header{position:sticky;top:0;z-index:var(--z-sticky);height:var(--header-height);background:var(--color-bg-secondary);border-bottom:1px solid var(--color-border);display:flex;align-items:center;padding:0 var(--space-6);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#ffffffd9}[data-theme=dark] .app-header{background:#141622d9}.app-header__logo{display:flex;align-items:center;gap:var(--space-2);font-size:var(--text-md);font-weight:var(--weight-bold);color:var(--color-text-primary);cursor:pointer;text-decoration:none}.app-header__logo-icon{width:24px;height:24px;background:var(--color-accent);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;color:#fff;font-size:var(--text-xs);font-weight:var(--weight-bold)}.app-header__nav{display:flex;align-items:center;gap:var(--space-1);margin-left:var(--space-8)}.app-header__nav-link{padding:var(--space-2) var(--space-3);font-size:var(--text-sm);font-weight:var(--weight-medium);color:var(--color-text-secondary);border-radius:var(--radius-md);transition:all var(--transition-fast);text-decoration:none}.app-header__nav-link:hover{color:var(--color-text-primary);background:var(--color-bg-hover)}.app-header__nav-link--active{color:var(--color-accent);background:var(--color-accent-light)}.app-header__right{margin-left:auto;display:flex;align-items:center;gap:var(--space-3)}.privacy-badge{display:inline-flex;align-items:center;gap:var(--space-1);padding:var(--space-1) var(--space-3);font-size:var(--text-xs);font-weight:var(--weight-medium);color:var(--color-success);background:var(--color-success-light);border-radius:var(--radius-full);-webkit-user-select:none;user-select:none}.privacy-badge__dot{width:6px;height:6px;border-radius:50%;background:var(--color-success);animation:pulse-dot 2s ease-in-out infinite}@keyframes pulse-dot{0%,to{opacity:1}50%{opacity:.4}}.theme-toggle{width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-md);color:var(--color-text-secondary);transition:all var(--transition-fast)}.theme-toggle:hover{background:var(--color-bg-hover);color:var(--color-text-primary)}.theme-toggle svg{width:18px;height:18px}.drop-zone{position:relative;border:2px dashed var(--color-border);border-radius:var(--radius-xl);padding:var(--space-16) var(--space-8);text-align:center;transition:all var(--transition-base);cursor:pointer;background:var(--color-bg-secondary)}.drop-zone:hover{border-color:var(--color-text-tertiary);background:var(--color-bg-hover)}.drop-zone--active{border-color:var(--color-accent);background:var(--color-bg-drop-active);box-shadow:var(--shadow-glow)}.drop-zone__icon{width:56px;height:56px;margin:0 auto var(--space-4);color:var(--color-text-tertiary);transition:all var(--transition-base)}.drop-zone--active .drop-zone__icon{color:var(--color-accent);transform:scale(1.1)}.drop-zone__title{font-size:var(--text-lg);font-weight:var(--weight-semibold);color:var(--color-text-primary);margin-bottom:var(--space-2)}.drop-zone__subtitle{font-size:var(--text-sm);color:var(--color-text-tertiary);margin-bottom:var(--space-4)}.drop-zone__browse{display:inline-flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-5);background:var(--color-accent);color:#fff;font-size:var(--text-sm);font-weight:var(--weight-medium);border-radius:var(--radius-md);transition:all var(--transition-fast);cursor:pointer}.drop-zone__browse:hover{background:var(--color-accent-hover);transform:translateY(-1px);box-shadow:var(--shadow-md)}.drop-zone input[type=file]{display:none}.file-list{display:flex;flex-direction:column;gap:var(--space-2);margin-top:var(--space-4)}.file-item{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-4);background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-md);transition:all var(--transition-fast)}.file-item:hover{border-color:var(--color-text-tertiary);box-shadow:var(--shadow-sm)}.file-item.sortable-ghost{opacity:.4;border-color:var(--color-accent)}.file-item.sortable-chosen{box-shadow:var(--shadow-lg)}.file-item__drag{color:var(--color-text-tertiary);cursor:grab;flex-shrink:0}.file-item__drag:active{cursor:grabbing}.file-item__icon{width:32px;height:32px;border-radius:var(--radius-sm);background:var(--color-danger-light);color:var(--color-danger);display:flex;align-items:center;justify-content:center;flex-shrink:0}.file-item__icon--image{background:var(--color-info-light);color:var(--color-info)}.file-item__info{flex:1;min-width:0}.file-item__name{font-size:var(--text-sm);font-weight:var(--weight-medium);color:var(--color-text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-item__meta{font-size:var(--text-xs);color:var(--color-text-tertiary);margin-top:2px}.file-item__remove{width:28px;height:28px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);color:var(--color-text-tertiary);transition:all var(--transition-fast);flex-shrink:0}.file-item__remove:hover{background:var(--color-danger-light);color:var(--color-danger)}.progress{padding:var(--space-6);text-align:center}.progress__bar-track{width:100%;max-width:400px;height:8px;background:var(--color-bg-tertiary);border-radius:var(--radius-full);overflow:hidden;margin:var(--space-4) auto}.progress__bar-fill{height:100%;background:var(--color-accent);border-radius:var(--radius-full);transition:width var(--transition-base)}.progress__bar-fill--indeterminate{width:30%;animation:indeterminate 1.5s ease-in-out infinite}@keyframes indeterminate{0%{transform:translate(-100%)}to{transform:translate(400%)}}.progress__label{font-size:var(--text-lg);font-weight:var(--weight-semibold);color:var(--color-text-primary)}.progress__detail{font-size:var(--text-sm);color:var(--color-text-secondary);margin-top:var(--space-2)}.progress__privacy{font-size:var(--text-xs);color:var(--color-text-tertiary);margin-top:var(--space-4);display:flex;align-items:center;justify-content:center;gap:var(--space-1)}.error-display{padding:var(--space-4);background:var(--color-danger-light);border:1px solid rgba(239,68,68,.2);border-radius:var(--radius-lg);display:flex;align-items:flex-start;gap:var(--space-3)}.error-display__icon{width:20px;height:20px;color:var(--color-danger);flex-shrink:0;margin-top:1px}.error-display__content{flex:1}.error-display__title{font-size:var(--text-sm);font-weight:var(--weight-semibold);color:var(--color-danger)}.error-display__message{font-size:var(--text-sm);color:var(--color-text-secondary);margin-top:var(--space-1)}.error-display__dismiss{color:var(--color-text-tertiary);flex-shrink:0}.result-card{padding:var(--space-6);background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-lg);text-align:center}.result-card__icon{width:48px;height:48px;margin:0 auto var(--space-3);border-radius:var(--radius-lg);background:var(--color-success-light);color:var(--color-success);display:flex;align-items:center;justify-content:center}.result-card__title{font-size:var(--text-md);font-weight:var(--weight-semibold);margin-bottom:var(--space-1)}.result-card__meta{font-size:var(--text-sm);color:var(--color-text-tertiary);margin-bottom:var(--space-4)}.thumbnails{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:var(--space-3)}.thumbnail{position:relative;aspect-ratio:210 / 297;background:var(--color-bg-secondary);border:2px solid var(--color-border);border-radius:var(--radius-md);overflow:hidden;cursor:pointer;transition:all var(--transition-fast)}.thumbnail:hover{border-color:var(--color-accent);box-shadow:var(--shadow-md);transform:translateY(-2px)}.thumbnail--selected{border-color:var(--color-accent);box-shadow:var(--shadow-glow)}.thumbnail--selected:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:#6366f114;pointer-events:none}.thumbnail canvas{width:100%;height:100%;object-fit:contain}.thumbnail__page-num{position:absolute;bottom:var(--space-1);left:50%;transform:translate(-50%);font-size:var(--text-xs);font-weight:var(--weight-medium);color:var(--color-text-secondary);background:var(--color-bg-secondary);padding:1px var(--space-2);border-radius:var(--radius-sm);border:1px solid var(--color-border)}.thumbnail__actions{position:absolute;top:var(--space-1);right:var(--space-1);display:flex;gap:2px;opacity:0;transition:opacity var(--transition-fast)}.thumbnail:hover .thumbnail__actions{opacity:1}.thumbnail__action-btn{width:24px;height:24px;display:flex;align-items:center;justify-content:center;background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-text-secondary);font-size:10px;transition:all var(--transition-fast)}.thumbnail__action-btn:hover{background:var(--color-accent);color:#fff;border-color:var(--color-accent)}.thumbnail__action-btn--danger:hover{background:var(--color-danger);border-color:var(--color-danger)}.thumbnail__checkbox{position:absolute;top:var(--space-1);left:var(--space-1);width:20px;height:20px;border-radius:var(--radius-sm);border:2px solid var(--color-border);background:var(--color-bg-secondary);display:flex;align-items:center;justify-content:center;opacity:0;transition:all var(--transition-fast)}.thumbnail:hover .thumbnail__checkbox,.thumbnail--selected .thumbnail__checkbox{opacity:1}.thumbnail--selected .thumbnail__checkbox{background:var(--color-accent);border-color:var(--color-accent);color:#fff}.tabs{display:flex;gap:var(--space-1);padding:var(--space-1);background:var(--color-bg-tertiary);border-radius:var(--radius-lg)}.tab{padding:var(--space-2) var(--space-4);font-size:var(--text-sm);font-weight:var(--weight-medium);color:var(--color-text-secondary);border-radius:var(--radius-md);transition:all var(--transition-fast)}.tab:hover{color:var(--color-text-primary)}.tab--active{background:var(--color-bg-secondary);color:var(--color-text-primary);box-shadow:var(--shadow-sm)}.controls{display:flex;align-items:center;gap:var(--space-3);flex-wrap:wrap}.controls__label{font-size:var(--text-sm);font-weight:var(--weight-medium);color:var(--color-text-secondary)}.input{height:36px;padding:0 var(--space-3);background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:var(--text-sm);color:var(--color-text-primary);transition:all var(--transition-fast)}.input:focus{outline:none;border-color:var(--color-accent);box-shadow:var(--shadow-glow)}.input::placeholder{color:var(--color-text-tertiary)}.select{height:36px;padding:0 var(--space-8) 0 var(--space-3);background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:var(--text-sm);color:var(--color-text-primary);-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right var(--space-3) center;cursor:pointer;transition:all var(--transition-fast)}.select:focus{outline:none;border-color:var(--color-accent);box-shadow:var(--shadow-glow)}.slider-group{display:flex;align-items:center;gap:var(--space-3)}.slider-group label{font-size:var(--text-sm);font-weight:var(--weight-medium);color:var(--color-text-secondary);white-space:nowrap}.slider{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:160px;height:4px;background:var(--color-bg-tertiary);border-radius:var(--radius-full);outline:none}.slider::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;border-radius:50%;background:var(--color-accent);cursor:pointer;transition:transform var(--transition-fast)}.slider::-webkit-slider-thumb:hover{transform:scale(1.2)}.info-banner{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-4);background:var(--color-info-light);border-radius:var(--radius-md);font-size:var(--text-sm);color:var(--color-text-secondary)}.info-banner__icon{color:var(--color-info);flex-shrink:0}.empty-state{padding:var(--space-16) var(--space-8);text-align:center}.empty-state__icon{width:64px;height:64px;margin:0 auto var(--space-4);color:var(--color-text-tertiary);opacity:.5}.empty-state__title{font-size:var(--text-lg);font-weight:var(--weight-semibold);margin-bottom:var(--space-2)}.empty-state__desc{font-size:var(--text-sm);color:var(--color-text-tertiary);max-width:360px;margin:0 auto}.app-footer{border-top:1px solid var(--color-border);background:var(--color-bg-secondary);padding:var(--space-12) var(--space-6) var(--space-8);margin-top:auto;color:var(--color-text-primary)}.app-footer__inner{max-width:1140px;margin:0 auto;display:flex;flex-direction:column;gap:var(--space-10)}.app-footer__grid{display:grid;grid-template-columns:1.8fr 1.1fr 1.3fr 1.1fr 1.1fr;gap:var(--space-8)}@media(max-width:960px){.app-footer__grid{grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}}.app-footer__col-title{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--color-text-secondary);margin-bottom:var(--space-3)}.app-footer__list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px}.app-footer__link{font-size:13px;color:var(--color-text-secondary);text-decoration:none;transition:all var(--transition-fast);display:inline-flex;align-items:center;gap:4px}.app-footer__link:hover{color:var(--color-accent);transform:translate(2px)}.app-footer__bottom{border-top:1px solid var(--color-border);padding-top:var(--space-6);display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:var(--space-4);font-size:12px;color:var(--color-text-tertiary)}.search-container{max-width:680px;margin:var(--space-6) auto 0;position:relative;width:100%}.search-input-wrap{display:flex;align-items:center;background:var(--color-bg-secondary);border:2px solid var(--color-border);border-radius:var(--radius-xl);padding:0 var(--space-4);height:52px;box-shadow:0 4px 20px -2px #0000000f;transition:all var(--transition-base)}.search-input-wrap:focus-within{border-color:var(--color-accent);box-shadow:0 8px 30px -4px #6366f133;transform:translateY(-2px)}.search-input{flex:1;border:none;background:transparent;padding:0 var(--space-3);font-size:var(--text-base);color:var(--color-text-primary);outline:none}.search-input::placeholder{color:var(--color-text-tertiary)}.search-filter-pills{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:var(--space-2);margin-top:var(--space-4)}.filter-pill{border:1px solid var(--color-border);background:var(--color-bg-secondary);color:var(--color-text-secondary);padding:4px 12px;border-radius:var(--radius-full);font-size:12px;font-weight:500;cursor:pointer;transition:all var(--transition-fast)}.filter-pill:hover{background:var(--color-bg-hover);color:var(--color-text-primary);border-color:var(--color-text-tertiary)}.filter-pill--active{background:var(--color-accent);color:#fff!important;border-color:var(--color-accent);box-shadow:0 2px 8px #6366f14d}.search-stats-bar{display:flex;align-items:center;justify-content:space-between;margin-top:var(--space-6);font-size:13px;color:var(--color-text-secondary)}.main-content{flex:1;padding:var(--space-8) var(--space-6)}.home{max-width:1040px;margin:0 auto}.home__hero{text-align:center;padding:var(--space-12) 0 var(--space-8)}.home__title{font-size:var(--text-4xl);font-weight:var(--weight-bold);margin-bottom:var(--space-3);background:linear-gradient(135deg,var(--color-text-primary) 0%,var(--color-accent) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.home__subtitle{font-size:var(--text-md);color:var(--color-text-secondary);max-width:480px;margin:0 auto;line-height:var(--leading-relaxed)}.home__tools{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--space-4);margin-top:var(--space-10)}.tool-card{display:flex;flex-direction:column;align-items:center;gap:var(--space-3);padding:var(--space-6) var(--space-4);background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-xl);text-align:center;cursor:pointer;transition:all var(--transition-base);text-decoration:none;color:inherit}.tool-card:hover{border-color:var(--color-accent);box-shadow:var(--shadow-lg);transform:translateY(-4px)}.tool-card__icon{width:48px;height:48px;border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;font-size:var(--text-xl)}.tool-card__icon--merge{background:linear-gradient(135deg,#dbeafe,#bfdbfe);color:#2563eb}[data-theme=dark] .tool-card__icon--merge{background:#2563eb26}.tool-card__icon--split{background:linear-gradient(135deg,#fce7f3,#fbcfe8);color:#db2777}[data-theme=dark] .tool-card__icon--split{background:#db277726}.tool-card__icon--pages{background:linear-gradient(135deg,#d1fae5,#a7f3d0);color:#059669}[data-theme=dark] .tool-card__icon--pages{background:#05966926}.tool-card__icon--pdf-to-image{background:linear-gradient(135deg,#fef3c7,#fde68a);color:#d97706}[data-theme=dark] .tool-card__icon--pdf-to-image{background:#d9770626}.tool-card__icon--image-to-pdf{background:linear-gradient(135deg,#e0e7ff,#c7d2fe);color:#4f46e5}[data-theme=dark] .tool-card__icon--image-to-pdf{background:#4f46e526}.tool-card__icon--compress{background:linear-gradient(135deg,#f3e8ff,#e9d5ff);color:#7c3aed}[data-theme=dark] .tool-card__icon--compress{background:#7c3aed26}.tool-card__name{font-size:var(--text-sm);font-weight:var(--weight-semibold);color:var(--color-text-primary)}.tool-card__desc{font-size:var(--text-xs);color:var(--color-text-tertiary);line-height:var(--leading-relaxed)}.home__privacy{display:flex;align-items:center;justify-content:center;gap:var(--space-2);margin-top:var(--space-10);padding:var(--space-4);background:var(--color-success-light);border-radius:var(--radius-lg);font-size:var(--text-sm);color:var(--color-success)}.home__privacy-lock{font-size:var(--text-md)}.tool-page{max-width:var(--max-content-width);margin:0 auto}.tool-page__header{display:flex;align-items:center;gap:var(--space-3);margin-bottom:var(--space-6)}.tool-page__back{width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-md);color:var(--color-text-secondary);transition:all var(--transition-fast)}.tool-page__back:hover{background:var(--color-bg-hover);color:var(--color-text-primary)}.tool-page__title{font-size:var(--text-xl);font-weight:var(--weight-bold)}.tool-page__body{display:flex;flex-direction:column;gap:var(--space-6);width:100%}.tool-layout{display:grid;grid-template-columns:340px 1fr;gap:var(--space-6);align-items:start;width:100%}@media(max-width:960px){.tool-layout{grid-template-columns:1fr;gap:var(--space-4)}}.tool-sidebar{display:flex;flex-direction:column;gap:var(--space-4);position:sticky;top:calc(var(--header-height) + var(--space-4))}@media(max-width:960px){.tool-sidebar{position:static}}.tool-sidebar__card{background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:var(--space-5);display:flex;flex-direction:column;gap:var(--space-4);box-shadow:var(--shadow-sm)}.tool-worksite{display:flex;flex-direction:column;gap:var(--space-4);min-width:0;background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:var(--space-6);min-height:520px;box-shadow:var(--shadow-sm)}.worksite-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:var(--space-16) var(--space-6);color:var(--color-text-tertiary);flex:1}.worksite-empty__icon{width:64px;height:64px;border-radius:var(--radius-2xl);background:var(--color-bg-tertiary);border:1px dashed var(--color-border);display:flex;align-items:center;justify-content:center;color:var(--color-text-tertiary);margin-bottom:var(--space-4)}.worksite-empty__title{font-size:var(--text-lg);font-weight:var(--weight-semibold);color:var(--color-text-primary);margin-bottom:var(--space-2)}.worksite-empty__subtitle{font-size:var(--text-sm);color:var(--color-text-tertiary);max-width:420px;line-height:var(--leading-relaxed);margin-bottom:var(--space-4)}.drop-zone--compact{padding:var(--space-8) var(--space-4);border-radius:var(--radius-lg)}.drop-zone--compact .drop-zone__icon{width:40px;height:40px;margin-bottom:var(--space-2)}.drop-zone--compact .drop-zone__title{font-size:var(--text-base);margin-bottom:var(--space-1)}.drop-zone--compact .drop-zone__subtitle{font-size:var(--text-xs);margin-bottom:var(--space-3)}.drop-zone--compact .drop-zone__browse{padding:var(--space-2) var(--space-4);font-size:var(--text-xs)}.workspace{display:grid;grid-template-columns:var(--sidebar-width) 1fr;gap:var(--space-4);min-height:60vh}.workspace__sidebar{background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-3);overflow-y:auto;max-height:70vh}.workspace__sidebar-title{font-size:var(--text-xs);font-weight:var(--weight-semibold);color:var(--color-text-tertiary);text-transform:uppercase;letter-spacing:.05em;padding:var(--space-2) var(--space-2) var(--space-3)}.workspace__main{background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-6);display:flex;flex-direction:column}.workspace__toolbar{display:flex;align-items:center;gap:var(--space-2);padding-bottom:var(--space-4);border-bottom:1px solid var(--color-border);margin-bottom:var(--space-4);flex-wrap:wrap}.workspace__toolbar-divider{width:1px;height:20px;background:var(--color-border)}.workspace__preview{flex:1;display:flex;align-items:center;justify-content:center;min-height:400px}.workspace__preview canvas{max-width:100%;max-height:60vh;box-shadow:var(--shadow-lg);border-radius:var(--radius-sm)}.sidebar-thumb{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-2);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);position:relative}.sidebar-thumb:hover{background:var(--color-bg-hover)}.sidebar-thumb--active{background:var(--color-accent-light);border:1px solid var(--color-accent)}.sidebar-thumb__canvas-wrap{width:48px;height:64px;border:1px solid var(--color-border);border-radius:var(--radius-sm);overflow:hidden;flex-shrink:0;background:#fff}.sidebar-thumb__canvas-wrap canvas{width:100%;height:100%;object-fit:contain}.sidebar-thumb__label{font-size:var(--text-xs);color:var(--color-text-secondary);font-weight:var(--weight-medium)}.compress-stats{display:grid;grid-template-columns:1fr auto 1fr;gap:var(--space-4);align-items:center;padding:var(--space-4);background:var(--color-bg-tertiary);border-radius:var(--radius-lg)}.compress-stat{text-align:center}.compress-stat__label{font-size:var(--text-xs);color:var(--color-text-tertiary);text-transform:uppercase;letter-spacing:.05em;margin-bottom:var(--space-1)}.compress-stat__value{font-size:var(--text-2xl);font-weight:var(--weight-bold);color:var(--color-text-primary)}.compress-stat__arrow{font-size:var(--text-xl);color:var(--color-text-tertiary)}.compress-stat__savings{font-size:var(--text-sm);color:var(--color-success);font-weight:var(--weight-semibold);margin-top:var(--space-1)}.image-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:var(--space-3)}.image-grid__item{position:relative;aspect-ratio:1;background:var(--color-bg-tertiary);border:1px solid var(--color-border);border-radius:var(--radius-md);overflow:hidden}.image-grid__item img{width:100%;height:100%;object-fit:cover}.pm-container{display:flex;flex-direction:column;gap:var(--space-6)}.pm-box{background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-sm)}.pm-box__header{padding:var(--space-4) var(--space-5);border-bottom:1px solid var(--color-border);display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:var(--space-3);background:var(--color-bg-tertiary)}.pm-box__title{font-size:var(--text-sm);font-weight:var(--weight-bold);color:var(--color-text-primary);display:flex;align-items:center;gap:var(--space-2);text-transform:uppercase;letter-spacing:.04em}.pm-search{display:flex;align-items:center;gap:var(--space-2);background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-1) var(--space-3);min-width:240px}.pm-search input{border:none;font-size:var(--text-sm);outline:none;width:100%}.pm-box__body{padding:var(--space-5)}.pm-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(115px,1fr));gap:var(--space-4);max-height:380px;overflow-y:auto;padding:var(--space-1)}.pm-card{position:relative;border:2px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-2);background:var(--color-bg-primary);cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:var(--space-2);transition:all var(--transition-fast);-webkit-user-select:none;user-select:none}.pm-card:hover{border-color:var(--color-accent);transform:translateY(-2px);box-shadow:var(--shadow-sm)}.pm-card--active{border-color:var(--color-accent);background:var(--color-accent-subtle);box-shadow:var(--shadow-glow)}.pm-card--selected{border-color:var(--color-accent);background:var(--color-accent-light)}.pm-card--deleted{opacity:.35;filter:grayscale(1);text-decoration:line-through;border-style:dashed}.pm-card__thumb-wrap{width:100%;aspect-ratio:1 / 1.35;display:flex;align-items:center;justify-content:center;overflow:hidden;border-radius:var(--radius-sm);background:#fff;border:1px solid var(--color-border-light)}.pm-card__thumb-wrap canvas{width:100%;height:100%;object-fit:contain;transition:transform .25s cubic-bezier(.4,0,.2,1)}.pm-card__meta{width:100%;display:flex;align-items:center;justify-content:space-between;font-size:var(--text-xs);color:var(--color-text-secondary);font-weight:var(--weight-medium)}.pm-card__rotation-badge{font-size:10px;background:var(--color-accent);color:#fff;padding:1px 4px;border-radius:var(--radius-sm)}.pm-inspector__preview{display:flex;align-items:center;justify-content:center;min-height:380px;background:var(--color-bg-primary);border-radius:var(--radius-lg);border:1px dashed var(--color-border);padding:var(--space-4);position:relative;overflow:hidden}.pm-inspector__preview canvas{max-width:100%;max-height:52vh;box-shadow:var(--shadow-lg);border-radius:var(--radius-sm);transition:transform .25s cubic-bezier(.4,0,.2,1)}@media(max-width:768px){.app-header__nav{display:flex;overflow-x:auto;white-space:nowrap;scrollbar-width:none;-ms-overflow-style:none;padding:0 var(--space-2);margin-left:var(--space-2);max-width:52vw}.app-header__nav::-webkit-scrollbar{display:none}.app-header__nav-link{padding:var(--space-1) var(--space-2);font-size:var(--text-xs)}.privacy-badge span:last-child{display:none}.home__title{font-size:var(--text-2xl)}.home__tools{grid-template-columns:repeat(2,1fr)}.workspace{grid-template-columns:1fr}.pm-box__header{flex-direction:column;align-items:stretch}.pm-search{width:100%;min-width:unset}.pm-grid{grid-template-columns:repeat(auto-fill,minmax(90px,1fr));gap:var(--space-2);max-height:280px}.pm-inspector__preview{min-height:260px}.tool-page__header{flex-wrap:wrap}}@media(max-width:480px){.home__tools{grid-template-columns:1fr}.main-content{padding:var(--space-3) var(--space-3)}}.editor-tabs{display:grid;grid-template-columns:repeat(5,1fr);gap:4px;background:var(--color-bg-secondary);padding:4px;border-radius:var(--radius-md);border:1px solid var(--color-border)}.tab-btn{display:flex;flex-direction:column;align-items:center;gap:4px;padding:6px 2px;background:transparent;border:none;border-radius:var(--radius-sm);color:var(--color-text-tertiary);cursor:pointer;font-size:10px;font-weight:var(--weight-medium);transition:all var(--transition-fast)}.tab-btn:hover{color:var(--color-text-primary);background:var(--color-bg-hover)}.tab-btn.active{color:var(--color-accent);background:var(--color-bg-primary);box-shadow:var(--shadow-sm);font-weight:var(--weight-semibold)}.anchor-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;background:var(--color-bg-tertiary);padding:6px;border-radius:var(--radius-md);border:1px solid var(--color-border);max-width:160px;margin:0 auto}.anchor-btn{aspect-ratio:1;display:flex;align-items:center;justify-content:center;background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-text-secondary);cursor:pointer;font-size:14px;transition:all var(--transition-fast)}.anchor-btn:hover{background:var(--color-bg-hover);color:var(--color-text-primary)}.anchor-btn.active{background:var(--color-accent);color:#fff;border-color:var(--color-accent)}.convert-mode-bar{display:flex;gap:6px;overflow-x:auto;padding-bottom:6px;margin-bottom:var(--space-4);scrollbar-width:thin}.convert-pill{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-full);color:var(--color-text-secondary);font-size:var(--text-xs);font-weight:var(--weight-medium);cursor:pointer;white-space:nowrap;transition:all var(--transition-fast)}.convert-pill:hover{background:var(--color-bg-hover);color:var(--color-text-primary)}.convert-pill--active{background:var(--color-accent);border-color:var(--color-accent);color:#fff;font-weight:var(--weight-semibold);box-shadow:0 2px 8px #6366f140}.tool-card__icon--convert{background:#6366f11a;color:#6366f1}.tool-card__icon--docx{background:#2563eb1a;color:#2563eb}.tool-card__icon--excel{background:#16a34a1a;color:#16a34a}.tool-card__icon--slides{background:#ea580c1a;color:#ea580c}.tool-card__icon--ocr{background:#9333ea1a;color:#9333ea}.form-input{width:100%;background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text-primary);font-family:inherit;box-sizing:border-box}.form-input:focus{outline:none;border-color:var(--color-accent);box-shadow:0 0 0 2px #6366f133}.segmented-control .seg-btn.active{background:var(--color-accent)!important;color:#fff!important;font-weight:var(--weight-semibold)}.worksite-box--top-preview{border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-bg-secondary);overflow:hidden;box-shadow:var(--shadow-sm)}.worksite-box--bottom-editor{border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-bg-secondary);box-shadow:var(--shadow-sm)}.editor-tab-pill{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;background:transparent;border:none;border-radius:var(--radius-sm);color:var(--color-text-secondary);font-size:var(--text-xs);font-weight:var(--weight-medium);cursor:pointer;white-space:nowrap;transition:all var(--transition-fast)}.editor-tab-pill:hover{background:var(--color-bg-hover);color:var(--color-text-primary)}.editor-tab-pill--active{background:var(--color-bg-primary);color:var(--color-accent);font-weight:var(--weight-semibold);box-shadow:var(--shadow-sm)}.organize-thumb-item:hover{border-color:var(--color-accent)!important;transform:translateY(-2px)}.organize-thumb--ghost{opacity:.35;border:2px dashed var(--color-accent)!important}#live-crop-overlay{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:20}.crop-mask-block{position:absolute;background:#0f172aa6;-webkit-backdrop-filter:blur(1px);backdrop-filter:blur(1px);pointer-events:none}.crop-box-interactive{position:absolute;border:2px solid #3b82f6;box-shadow:0 0 0 1px #fff6,0 8px 32px #00000059;pointer-events:auto;cursor:move;touch-action:none;-webkit-user-select:none;user-select:none;z-index:25}.crop-grid-h{position:absolute;left:0;right:0;height:1px;border-top:1px dashed rgba(255,255,255,.4);pointer-events:none}.crop-grid-v{position:absolute;top:0;bottom:0;width:1px;border-left:1px dashed rgba(255,255,255,.4);pointer-events:none}.crop-info-pill{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);pointer-events:none;background:#0f172ae0;color:#fff;font-size:10px;font-weight:700;padding:4px 10px;border-radius:9999px;white-space:nowrap;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);box-shadow:0 2px 8px #0000004d;border:1px solid rgba(255,255,255,.2);display:flex;align-items:center;gap:6px;letter-spacing:.02em}.crop-handle{position:absolute;background:#fff;border:2px solid #2563eb;border-radius:2px;box-shadow:0 1px 4px #00000059;z-index:30;pointer-events:auto;touch-action:none;transition:transform .1s ease,background .1s ease}.crop-handle:hover,.crop-handle:active{background:#2563eb;border-color:#fff;transform:scale(1.25)}.crop-handle--nw{width:12px;height:12px;top:-6px;left:-6px;cursor:nwse-resize}.crop-handle--n{width:22px;height:8px;top:-5px;left:calc(50% - 11px);border-radius:3px;cursor:ns-resize}.crop-handle--ne{width:12px;height:12px;top:-6px;right:-6px;cursor:nesw-resize}.crop-handle--e{width:8px;height:22px;top:calc(50% - 11px);right:-5px;border-radius:3px;cursor:ew-resize}.crop-handle--se{width:12px;height:12px;bottom:-6px;right:-6px;cursor:nwse-resize}.crop-handle--s{width:22px;height:8px;bottom:-5px;left:calc(50% - 11px);border-radius:3px;cursor:ns-resize}.crop-handle--sw{width:12px;height:12px;bottom:-6px;left:-6px;cursor:nesw-resize}.crop-handle--w{width:8px;height:22px;top:calc(50% - 11px);left:-5px;border-radius:3px;cursor:ew-resize}.convert-category-bar{display:flex;gap:8px;overflow-x:auto;padding-bottom:var(--space-2);margin-bottom:var(--space-4);scrollbar-width:thin}.convert-cat-btn{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:var(--text-sm);font-weight:var(--weight-medium);color:var(--color-text-primary)!important;cursor:pointer;white-space:nowrap;-webkit-user-select:none;user-select:none;transition:all var(--transition-fast)}.convert-cat-btn span{color:var(--color-text-primary)}.convert-cat-btn svg{color:var(--color-text-secondary);flex-shrink:0}.convert-cat-btn:hover{background:var(--color-bg-hover);color:var(--color-accent, #6366f1)!important;border-color:var(--color-accent, #6366f1)}.convert-cat-btn:hover span{color:var(--color-accent, #6366f1)}.convert-cat-btn:hover svg{color:var(--color-accent, #6366f1)}.convert-cat-btn.active{background:var(--color-accent, #6366f1)!important;color:#fff!important;border-color:var(--color-accent, #6366f1)!important;font-weight:var(--weight-semibold);box-shadow:0 2px 8px #6366f140}.convert-cat-btn.active span{color:#fff!important}.convert-cat-btn.active svg{color:#fff!important;stroke:#fff!important}.convert-direction-switcher{display:flex;align-items:center;background:var(--color-bg-tertiary);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:4px;gap:4px;margin-bottom:var(--space-4)}.conv-dir-pill{flex:1;display:flex;align-items:center;justify-content:center;gap:6px;padding:8px 14px;border:1px solid transparent;background:transparent;border-radius:var(--radius-md);font-size:var(--text-xs);font-weight:var(--weight-semibold);color:var(--color-text-secondary)!important;cursor:pointer;-webkit-user-select:none;user-select:none;transition:all var(--transition-fast)}.conv-dir-pill span{color:var(--color-text-secondary)}.conv-dir-pill:hover{color:var(--color-text-primary)!important}.conv-dir-pill:hover span{color:var(--color-text-primary)}.conv-dir-pill.active{background:var(--color-bg-secondary)!important;color:var(--color-accent, #6366f1)!important;border-color:var(--color-border)!important;font-weight:var(--weight-bold);box-shadow:0 1px 4px #00000014}.conv-dir-pill.active span{color:var(--color-accent, #6366f1)!important}.conv-dir-swap-btn{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:50%;border:1px solid var(--color-border);background:var(--color-bg-primary);color:var(--color-text-secondary);cursor:pointer;transition:all var(--transition-fast)}.conv-dir-swap-btn:hover{background:var(--color-accent, #6366f1);color:#fff;border-color:var(--color-accent, #6366f1);transform:rotate(180deg)}