:root{--bg-primary:#0b0d13;--bg-secondary:#14171f;--bg-surface:#1d202b99;--bg-surface-hover:#252937b3;--bg-glass:#181c2566;--text-primary:#f0f1f5;--text-secondary:#98a1b3;--text-muted:#676f7e;--accent-violet:#7c3aed;--accent-cyan:#06b6d4;--accent-gradient:linear-gradient(135deg, var(--accent-violet), var(--accent-cyan));--accent-gradient-hover:linear-gradient(135deg, #8b5cf6, #22d3ee);--border-color:#3d475c4d;--border-active:#6796;--shadow-sm:0 2px 8px #0000004d;--shadow-md:0 4px 20px #0006;--shadow-lg:0 8px 40px #00000080;--shadow-glow:0 0 30px #6325f426;--font-family:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-size-xs:.75rem;--font-size-sm:.875rem;--font-size-base:1rem;--font-size-lg:1.125rem;--font-size-xl:1.5rem;--font-size-2xl:2rem;--font-size-3xl:2.5rem;--space-xs:.25rem;--space-sm:.5rem;--space-md:1rem;--space-lg:1.5rem;--space-xl:2rem;--space-2xl:3rem;--space-3xl:4rem;--radius-sm:.5rem;--radius-md:.75rem;--radius-lg:1rem;--radius-xl:1.5rem;--transition-fast:.15s cubic-bezier(.4, 0, .2, 1);--transition-base:.25s cubic-bezier(.4, 0, .2, 1);--transition-slow:.4s cubic-bezier(.4, 0, .2, 1);--glass-blur:blur(16px);--glass-border:1px solid var(--border-color)}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:16px}body{font-family:var(--font-family);background-color:var(--bg-primary);color:var(--text-primary);min-height:100vh;line-height:1.6;overflow-x:hidden}body:before{content:"";pointer-events:none;z-index:0;background:radial-gradient(80% 50% at 50% -20%,#6325f414,#0000),radial-gradient(60% 40% at 80% 100%,#0bc9da0f,#0000);position:fixed;inset:0}#app{z-index:1;max-width:1200px;padding:var(--space-lg) var(--space-xl);flex-direction:column;min-height:100vh;margin:0 auto;display:flex;position:relative}.header{text-align:center;padding:var(--space-2xl) 0 var(--space-xl)}.header__brand{align-items:center;gap:var(--space-md);margin-bottom:var(--space-md);display:inline-flex}.header__logo{border-radius:var(--radius-md);filter:drop-shadow(0 0 12px #6325f44d);width:56px;height:56px;animation:6s ease-in-out infinite float}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-6px)}}.header__title{font-size:var(--font-size-3xl);background:var(--accent-gradient);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-weight:700;line-height:1.1}.header__tagline{font-size:var(--font-size-sm);color:var(--text-muted);letter-spacing:.05em;text-transform:uppercase;font-weight:400}.header__description{font-size:var(--font-size-lg);color:var(--text-secondary);max-width:520px;margin:0 auto}.header__description strong{color:var(--text-primary);font-weight:600}.main{gap:var(--space-xl);flex-direction:column;flex:1;display:flex}.drop-zone{border:2px dashed var(--border-color);border-radius:var(--radius-xl);padding:var(--space-3xl) var(--space-xl);text-align:center;cursor:pointer;transition:border-color var(--transition-base), background-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);background:var(--bg-glass);-webkit-backdrop-filter:var(--glass-blur);position:relative}.drop-zone:hover{border-color:var(--accent-violet);background:var(--bg-surface);box-shadow:var(--shadow-glow)}.drop-zone--active{transform:scale(1.01);border-color:var(--accent-cyan)!important;background:#0bc9da14!important;box-shadow:0 0 40px #0bc9da26!important}.drop-zone__content{align-items:center;gap:var(--space-md);pointer-events:none;flex-direction:column;display:flex}.drop-zone__icon{color:var(--text-muted);transition:color var(--transition-base), transform var(--transition-base);animation:3s ease-in-out infinite pulse-subtle}.drop-zone:hover .drop-zone__icon{color:var(--accent-violet);transform:translateY(-4px)}.drop-zone--active .drop-zone__icon{color:var(--accent-cyan)}@keyframes pulse-subtle{0%,to{opacity:.7}50%{opacity:1}}.drop-zone__title{font-size:var(--font-size-xl);color:var(--text-primary);font-weight:600}.drop-zone__subtitle{font-size:var(--font-size-sm);color:var(--text-muted)}.drop-zone__input{opacity:0;cursor:pointer;pointer-events:auto;width:100%;height:100%;position:absolute;inset:0}.drop-zone--has-files{padding:var(--space-lg) var(--space-xl)}.drop-zone--has-files .drop-zone__icon{display:none}.drop-zone--has-files .drop-zone__title{font-size:var(--font-size-sm);color:var(--text-muted);font-weight:400}.drop-zone--has-files .drop-zone__subtitle{display:none}.drop-zone__file-list{gap:var(--space-sm);width:100%;margin-top:var(--space-md);pointer-events:none;flex-direction:column;display:flex}.file-item{align-items:center;gap:var(--space-md);padding:var(--space-sm) var(--space-md);background:var(--bg-surface);border:1px solid var(--border-color);border-radius:var(--radius-md);transition:border-color var(--transition-fast), background var(--transition-fast);animation:.35s ease-out both fileItemIn;display:flex}.file-item:hover{border-color:var(--border-active);background:var(--bg-surface-hover)}@keyframes fileItemIn{0%{opacity:0;transform:translateY(8px)scale(.97)}to{opacity:1;transform:translateY(0)scale(1)}}.file-item__icon{border-radius:var(--radius-sm);color:#e05252;background:#dd3c3c1f;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;display:flex}.file-item__details{flex:1;min-width:0}.file-item__name{font-size:var(--font-size-sm);color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;font-weight:500;overflow:hidden}.file-item__meta{font-size:var(--font-size-xs);color:var(--text-muted);gap:var(--space-sm);display:flex}.file-item__pages{font-size:var(--font-size-xs);color:var(--accent-violet);white-space:nowrap;background:#6325f41a;border-radius:999px;flex-shrink:0;padding:.1rem .5rem;font-weight:600}.controls{background:var(--bg-glass);-webkit-backdrop-filter:var(--glass-blur);border:var(--glass-border);border-radius:var(--radius-lg);padding:var(--space-lg) var(--space-xl);justify-content:space-between;align-items:center;gap:var(--space-xl);flex-wrap:wrap;animation:.4s ease-out fadeSlideUp;display:flex}@keyframes fadeSlideUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.controls__group{align-items:center;gap:var(--space-xl);flex-wrap:wrap;display:flex}.controls__actions{gap:var(--space-sm);display:flex}.control{gap:var(--space-xs);flex-direction:column;display:flex}.control__label{font-size:var(--font-size-xs);color:var(--text-muted);text-transform:uppercase;letter-spacing:.06em;font-weight:500}.control__toggle{background:var(--bg-secondary);border-radius:var(--radius-sm);gap:2px;padding:3px;display:flex;position:relative}.control__toggle-btn{z-index:1;font-size:var(--font-size-sm);font-weight:500;font-family:var(--font-family);color:var(--text-muted);border-radius:calc(var(--radius-sm) - 2px);cursor:pointer;transition:color var(--transition-fast);background:0 0;border:none;padding:.4rem 1rem;position:relative}.control__toggle-btn.active{color:var(--text-primary)}.control__toggle-indicator{background:var(--bg-surface-hover);border-radius:calc(var(--radius-sm) - 2px);width:calc(50% - 4px);height:calc(100% - 6px);transition:transform var(--transition-base);box-shadow:var(--shadow-sm);position:absolute;top:3px;left:3px}.control__toggle-btn:last-of-type.active~.control__toggle-indicator{transform:translate(calc(100% + 2px))}.control__slider{appearance:none;background:var(--bg-secondary);cursor:pointer;border-radius:3px;outline:none;width:120px;height:6px}.control__slider::-webkit-slider-thumb{appearance:none;background:var(--accent-gradient);border:2px solid var(--bg-primary);cursor:pointer;width:18px;height:18px;transition:transform var(--transition-fast), box-shadow var(--transition-fast);border-radius:50%;box-shadow:0 0 8px #6325f44d}.control__slider::-webkit-slider-thumb:hover{transform:scale(1.15);box-shadow:0 0 16px #6325f480}.control__slider::-moz-range-thumb{background:var(--accent-gradient);border:2px solid var(--bg-primary);cursor:pointer;border-radius:50%;width:18px;height:18px;box-shadow:0 0 8px #6325f44d}.btn{align-items:center;gap:var(--space-sm);font-size:var(--font-size-sm);font-weight:600;font-family:var(--font-family);border-radius:var(--radius-md);cursor:pointer;transition:background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);white-space:nowrap;border:none;padding:.65rem 1.25rem;display:inline-flex}.btn:active{transform:scale(.97)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn--primary{background:var(--accent-gradient);color:#fff;box-shadow:0 4px 16px #6325f440}.btn--primary:hover:not(:disabled){background:var(--accent-gradient-hover);transform:translateY(-1px);box-shadow:0 6px 24px #6325f459}.btn--secondary{color:var(--text-primary);background:#6325f41f;border:1px solid #6325f459}.btn--secondary:hover:not(:disabled){border-color:var(--accent-violet);background:#6325f438;transform:translateY(-1px)}.btn--ghost{color:var(--text-secondary);border:1px solid var(--border-color);background:0 0}.btn--ghost:hover:not(:disabled){background:var(--bg-surface);color:var(--text-primary);border-color:var(--border-active)}.progress-section{animation:.3s ease-out fadeSlideUp}.progress-bar{background:var(--bg-secondary);border-radius:4px;width:100%;height:8px;overflow:hidden}.progress-bar__fill{background:var(--accent-gradient);width:0%;height:100%;transition:width var(--transition-fast);border-radius:4px;position:relative}.progress-bar__fill:after{content:"";background:linear-gradient(90deg,#0000,#fff3,#0000);animation:1.5s infinite shimmer;position:absolute;inset:0}@keyframes shimmer{0%{transform:translate(-100%)}to{transform:translate(100%)}}.progress-text{margin-top:var(--space-sm);font-size:var(--font-size-sm);color:var(--text-muted);text-align:center}.results{animation:.4s ease-out fadeSlideUp}.results__header{align-items:center;gap:var(--space-md);margin-bottom:var(--space-lg);display:flex}.results__title{font-size:var(--font-size-xl);font-weight:600}.results__count{font-size:var(--font-size-sm);color:var(--text-muted);background:var(--bg-surface);border-radius:999px;padding:.2rem .75rem}.file-nav{align-items:center;gap:var(--space-xs);margin-bottom:var(--space-lg);background:var(--bg-glass);-webkit-backdrop-filter:var(--glass-blur);border:var(--glass-border);border-radius:var(--radius-lg);padding:6px;animation:.3s ease-out fadeSlideUp;display:flex}.file-nav__arrow{border-radius:var(--radius-md);background:var(--bg-surface);width:36px;height:36px;color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast);border:1px solid #0000;flex-shrink:0;justify-content:center;align-items:center;display:inline-flex}.file-nav__arrow:hover:not(:disabled){background:var(--bg-surface-hover);color:var(--text-primary);border-color:var(--border-active);transform:translateY(-1px)}.file-nav__arrow:disabled{opacity:.3;cursor:not-allowed}.file-tabs{align-items:center;gap:var(--space-xs);scroll-behavior:smooth;scrollbar-width:none;flex:1;padding:2px;display:flex;overflow-x:auto}.file-tabs::-webkit-scrollbar{display:none}.file-tab{align-items:center;gap:var(--space-xs);font-size:var(--font-size-sm);font-weight:500;font-family:var(--font-family);color:var(--text-muted);border-radius:var(--radius-md);cursor:pointer;white-space:nowrap;transition:all var(--transition-fast);background:0 0;border:1px solid #0000;flex-shrink:0;padding:.45rem .9rem;display:inline-flex}.file-tab:hover:not(.active){color:var(--text-primary);background:var(--bg-surface);border-color:var(--border-color)}.file-tab.active{color:var(--text-primary);background:var(--accent-gradient);font-weight:600;box-shadow:0 4px 12px #6325f440}.file-tab__badge{font-size:var(--font-size-xs);color:var(--text-secondary);transition:all var(--transition-fast);background:#3d475c80;border-radius:999px;padding:.1rem .5rem;font-weight:600}.file-tab.active .file-tab__badge{color:#fff;background:#ffffff40}.results__grid{gap:var(--space-lg);grid-template-columns:repeat(auto-fill,minmax(220px,1fr));display:grid}.page-card{background:var(--bg-surface);border:var(--glass-border);border-radius:var(--radius-lg);cursor:pointer;transition:transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);animation:.5s ease-out both cardFadeIn;position:relative;overflow:hidden}.page-card:hover{box-shadow:var(--shadow-lg), var(--shadow-glow);border-color:var(--accent-violet);transform:translateY(-4px)scale(1.02)}@keyframes cardFadeIn{0%{opacity:0;transform:translateY(20px)scale(.95)}to{opacity:1;transform:translateY(0)scale(1)}}.page-card__image-wrapper{aspect-ratio:210/297;background:var(--bg-secondary);position:relative;overflow:hidden}.page-card__image{object-fit:contain;background:#fff;width:100%;height:100%;display:block}.page-card__overlay{opacity:0;transition:opacity var(--transition-base);background:#0b0d13b3;justify-content:center;align-items:center;display:flex;position:absolute;inset:0}.page-card:hover .page-card__overlay{opacity:1}.page-card__actions{align-items:center;gap:var(--space-md);transition:transform var(--transition-base);display:flex;transform:scale(.85)}.page-card:hover .page-card__actions{transform:scale(1)}.page-card__btn{color:#fff;cursor:pointer;width:44px;height:44px;box-shadow:var(--shadow-md);transition:transform var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast);border:none;border-radius:50%;justify-content:center;align-items:center;display:flex}.page-card__btn:hover{transform:scale(1.12)}.page-card__btn:active{transform:scale(.95)}.page-card__btn--download{background:var(--accent-gradient)}.page-card__btn--download:hover{background:var(--accent-gradient-hover);box-shadow:0 0 16px #6325f480}.page-card__btn--delete{background:linear-gradient(135deg,#df2040,#bd0f2c)}.page-card__btn--delete:hover{background:linear-gradient(135deg,#ee2b4b,#e0062a);box-shadow:0 0 16px #ec133780}.page-card--deleting{pointer-events:none;animation:.3s ease-in forwards cardFadeOut!important}@keyframes cardFadeOut{to{opacity:0;transform:scale(.8)translateY(10px)}}.page-card__info{padding:var(--space-sm) var(--space-md);justify-content:space-between;align-items:center;display:flex}.page-card__name{font-size:var(--font-size-xs);color:var(--text-secondary);white-space:nowrap;text-overflow:ellipsis;max-width:70%;overflow:hidden}.page-card__page-num{font-size:var(--font-size-xs);color:var(--text-muted);background:var(--bg-secondary);border-radius:999px;padding:.15rem .5rem;font-weight:600}.footer{text-align:center;padding:var(--space-2xl) 0 var(--space-lg);color:var(--text-muted);font-size:var(--font-size-sm)}.skeleton{background:linear-gradient(90deg, var(--bg-secondary) 25%, var(--bg-surface-hover) 50%, var(--bg-secondary) 75%);background-size:200% 100%;animation:1.5s ease-in-out infinite skeleton-loading}@keyframes skeleton-loading{0%{background-position:200% 0}to{background-position:-200% 0}}@media (width<=768px){#app{padding:var(--space-md)}.header{padding:var(--space-xl) 0 var(--space-lg)}.header__title{font-size:var(--font-size-2xl)}.header__logo{width:44px;height:44px}.header__description{font-size:var(--font-size-base)}.controls{padding:var(--space-md);flex-direction:column;align-items:stretch}.controls__group{flex-direction:column;align-items:stretch}.controls__actions{justify-content:stretch}.controls__actions .btn{flex:1;justify-content:center}.control__slider{width:100%}.drop-zone{padding:var(--space-2xl) var(--space-md)}.results__grid{gap:var(--space-md);grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}}@media (width<=480px){.results__grid{gap:var(--space-sm);grid-template-columns:repeat(2,1fr)}.page-card__info{padding:var(--space-xs) var(--space-sm)}}