:root{--dark:#050927;--blue:#0867ff;--cyan:#0dd7ff;--purple:#6d28d9;--text:#071331;--muted:#5f6f8c;--line:#e7edf7;--bg:#f7faff;--card:#fff;--shadow:0 18px 45px rgba(8,15,59,.10)}
*{box-sizing:border-box}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--text)}a{text-decoration:none;color:inherit}button,input{font:inherit}.container{width:min(1780px,calc(100% - 64px));margin-inline:auto}.svg-sprite{position:absolute;width:0;height:0;overflow:hidden}.svg-icon{width:1.25em;height:1.25em;display:block;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.header{position:sticky;top:0;z-index:100;background:rgba(5,9,39,.94);backdrop-filter:blur(16px);border-bottom:1px solid rgba(255,255,255,.08)}.nav{height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px;position:relative}.logo{color:#fff;display:flex;align-items:center;gap:10px;font-weight:900;letter-spacing:.03em;line-height:.9;min-width:max-content}.logo-mark{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,var(--cyan),var(--blue));box-shadow:0 0 24px rgba(13,215,255,.45)}.logo-mark .svg-icon{width:23px;height:23px}.logo .wave{color:#11d7ff}.logo small{font-size:10px;letter-spacing:.55em;color:#d9e7ff}.menu{display:flex;align-items:center;justify-content:center;gap:10px;flex:1}.menu a{color:#f8fbff;font-weight:800;font-size:14px;padding:12px 15px;border-radius:12px;min-height:44px;display:flex;align-items:center}.menu a:hover{background:#211063}.nav-actions{display:flex;gap:12px;align-items:center;position:relative}.icon-btn,.mobile-menu-btn{width:42px;height:42px;border-radius:12px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.05);color:#fff;display:grid;place-items:center;padding:0;cursor:pointer}.top-pill{border-radius:12px;background:red;color:#fff;padding:13px 18px;font-weight:900;font-size:14px}.mobile-menu-btn{display:none}.search-popover{display:none;position:absolute;right:0;top:58px;width:min(430px,calc(100vw - 32px));background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:0 25px 65px rgba(0,0,0,.22);overflow:hidden;z-index:120;color:#071331}.search-popover.open{display:block}.search-input-wrap{display:flex;align-items:center;gap:8px;padding:12px;border-bottom:1px solid var(--line)}.search-input-wrap input{width:100%;border:1px solid #dbe4f2;border-radius:12px;padding:13px 14px;outline:none}.search-results{max-height:350px;overflow:auto;padding:8px}.search-result{display:flex;gap:12px;align-items:center;padding:12px;border-radius:12px}.search-result:hover{background:#f5f8ff}.search-result i{width:34px;height:34px;flex:0 0 34px;border-radius:10px;display:grid;place-items:center;background:linear-gradient(135deg,var(--blue),var(--purple));color:#fff;font-style:normal;font-weight:900;font-size:11px}.search-result strong{display:block;font-size:14px}.search-result small{display:block;font-size:12px;color:#64748b;margin-top:2px}.no-search{display:none;padding:18px;text-align:center;color:#64748b}
.hero{position:relative;color:#fff;overflow:hidden;min-height:230px;background:radial-gradient(circle at 82% 40%,rgba(103,58,255,.5),transparent 25rem),radial-gradient(circle at 30% 10%,rgba(9,98,255,.28),transparent 31rem),linear-gradient(90deg,#06113f,#071653 48%,#050b31)}.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(110deg,transparent 0 38%,rgba(255,255,255,.04),transparent 62%),repeating-linear-gradient(162deg,rgba(31,130,255,.18) 0 1px,transparent 1px 20px)}.hero-content{position:relative;z-index:2;min-height:230px;display:grid;grid-template-columns:minmax(560px,1fr) 430px;align-items:center;gap:30px;padding:28px 0 54px}.eyebrow{display:inline-flex;padding:8px 13px;border:1px solid rgba(255,255,255,.2);border-radius:999px;background:rgba(255,255,255,.08);font-size:13px;font-weight:900}.hero h1{margin:11px 0 8px;font-size:clamp(42px,4.2vw,70px);line-height:1.02;letter-spacing:-.055em}.hero h1 span{background:linear-gradient(90deg,#0b8dff,#8b5cf6);-webkit-background-clip:text;color:transparent}.hero p{font-size:18px;line-height:1.55;margin:0;color:#eef4ff;max-width:800px}.hero-badges{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}.hero-badges span{padding:9px 14px;border-radius:10px;background:rgba(4,12,50,.55);border:1px solid rgba(122,145,255,.42);font-size:13px;font-weight:850}.hero-art{display:grid;place-items:center}.pdf-stack{position:relative;width:250px;height:170px}.pdf-stack span{position:absolute;width:135px;height:165px;border-radius:16px;display:grid;place-items:center;font-size:27px;font-weight:950;color:white;border:1px solid rgba(255,255,255,.25);box-shadow:0 25px 55px rgba(0,0,0,.3)}.pdf-stack span:nth-child(1){left:5px;top:10px;background:linear-gradient(135deg,#ef4444,#be123c);transform:rotate(-12deg)}.pdf-stack span:nth-child(2){left:58px;top:0;background:linear-gradient(135deg,#0867ff,#4f46e5);transform:rotate(1deg)}.pdf-stack span:nth-child(3){left:110px;top:12px;background:linear-gradient(135deg,#7c3aed,#db2777);transform:rotate(12deg)}
.main-shell{margin-top:-38px;position:relative;z-index:4;padding-bottom:40px}.content-wrap{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:34px;align-items:start}.main-column{min-width:0}.tool-panel,.stats-card,.preview-card,.security-card,.related-card,.seo-content{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}.tool-panel{padding:26px}.panel-head{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:20px}.panel-head h2,.workspace-head h3{margin:0}.panel-head p,.workspace-head p{margin:6px 0 0;color:var(--muted);font-weight:650}.module-pill{padding:8px 12px;border-radius:999px;background:#eaf2ff;color:#0757db;font-size:12px;font-weight:900;white-space:nowrap}
.drop-zone{width:100%;min-height:245px;border:2px dashed #a9bde8;border-radius:18px;background:linear-gradient(180deg,#fbfdff,#f4f8ff);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:30px;cursor:pointer;transition:.2s}.drop-zone:hover,.drop-zone.dragover{border-color:#6d28d9;background:#f3efff;transform:translateY(-1px)}.upload-icon{width:64px;height:64px;border-radius:20px;display:grid;place-items:center;background:linear-gradient(135deg,#0867ff,#6d28d9);color:#fff;box-shadow:0 14px 30px rgba(72,61,210,.25);margin-bottom:16px}.upload-icon .svg-icon{width:30px;height:30px}.drop-zone strong{font-size:22px}.drop-zone>span:not(.upload-icon){margin-top:6px;color:#476080;font-weight:700}.drop-zone small{margin-top:10px;color:#6b7b96}.status-message{display:none;margin-top:14px;padding:12px 14px;border-radius:11px;background:#eef5ff;color:#154a9a;font-weight:750}.status-message.show{display:block}.workspace{margin-top:24px}.workspace-head{display:flex;align-items:center;justify-content:space-between;gap:15px;border-bottom:1px solid var(--line);padding-bottom:15px}.workspace-actions{display:flex;gap:9px}.secondary-btn,.danger-btn,.primary-btn,.file-action{border:0;border-radius:11px;padding:11px 15px;font-weight:900;cursor:pointer}.secondary-btn{background:#edf3fb;color:#172554}.danger-btn{background:#fff0f0;color:#b91c1c}.primary-btn{background:linear-gradient(135deg,#0867ff,#6d28d9);color:#fff;padding:15px 24px;font-size:16px}.primary-btn:disabled{opacity:.55;cursor:not-allowed}.file-list{display:grid;gap:11px;margin-top:15px}.file-card{display:grid;grid-template-columns:42px 46px minmax(0,1fr) auto;align-items:center;gap:12px;border:1px solid #e3eaf5;border-radius:14px;padding:13px;background:#fff;transition:.2s}.file-card.dragging{opacity:.45}.file-card.drag-target{border-color:#6d28d9;box-shadow:0 0 0 3px rgba(109,40,217,.08)}.grip{border:0;background:transparent;color:#8b99b1;display:grid;place-items:center;cursor:grab;padding:8px}.file-type{width:44px;height:48px;border-radius:10px;background:linear-gradient(135deg,#ef4444,#be123c);color:#fff;display:grid;place-items:center;font-size:11px;font-weight:950}.file-info{min-width:0}.file-info strong{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:#172554}.file-info small{display:block;color:#64748b;margin-top:4px}.file-actions{display:flex;gap:7px}.file-action{display:inline-flex;align-items:center;gap:6px;background:#eef4ff;color:#164fb7;padding:9px 11px}.file-action.delete{background:#fff0f0;color:#b91c1c}.merge-actions{text-align:center;margin-top:20px;padding-top:20px;border-top:1px solid var(--line)}.merge-actions p{font-size:12px;color:#6b7b96;max-width:650px;margin:10px auto 0}.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:18px}.info-grid article{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:0 10px 30px rgba(8,15,59,.05)}.info-grid article>strong{width:35px;height:35px;border-radius:10px;display:grid;place-items:center;background:#eaf2ff;color:#0757db}.info-grid h3{margin:11px 0 5px}.info-grid p{margin:0;color:var(--muted);font-size:13px;line-height:1.5}.seo-content{margin-top:18px;padding:24px}.seo-content h2{margin-top:0}.seo-content p{color:var(--muted);line-height:1.7}.faq details{border-top:1px solid var(--line);padding:13px 0}.faq summary{cursor:pointer;font-weight:850}.faq details p{margin-bottom:0}
.sidebar{position:sticky;top:88px;display:grid;gap:18px}.stats-card,.preview-card,.related-card{padding:20px}.stats-card h3,.preview-card h3,.related-card h3,.security-card h3{margin:0}.stat-row{display:flex;justify-content:space-between;gap:15px;padding:12px 0;border-bottom:1px solid #eef2f7}.stat-row:last-child{border:0}.stat-row span{color:#64748b}.stat-row strong{color:#0757db}.preview-head{display:flex;justify-content:space-between;align-items:center}.preview-head button{border:0;background:transparent;font-size:25px;cursor:pointer;color:#64748b}.preview-empty{min-height:290px;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#8a99b3;text-align:center}.preview-empty .svg-icon{width:42px;height:42px}.preview-card iframe{width:100%;height:390px;border:0;border-radius:10px;margin-top:12px;background:#eef2f7}.security-card{padding:18px;display:flex;gap:13px;align-items:flex-start}.security-icon{width:42px;height:42px;flex:0 0 42px;border-radius:12px;display:grid;place-items:center;background:#eafaf1;color:#16824a}.security-card p{margin:6px 0 0;color:#64748b;font-size:13px;line-height:1.5}.related-card{display:grid;gap:7px}.related-card a{display:flex;justify-content:space-between;align-items:center;border:1px solid #edf1f7;border-radius:10px;padding:11px;color:#2452aa;font-weight:800;font-size:13px}.related-card a.active{background:#eef4ff;border-color:#ccdafe}.related-card small{color:#8b99b1;font-size:10px}.ad-slot-sidebar{min-height:300px;padding:10px;overflow:hidden;text-align:center;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}.ad-label{display:block;margin-bottom:6px;color:#64748b;font-size:10px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
.footer{background:radial-gradient(circle at 65% 35%,#102d70,#061739 70%);color:#fff;padding:38px 0 18px}.footer-grid{display:grid;grid-template-columns:1.3fr .9fr 1fr 1.2fr;gap:45px}.footer-logo{display:flex;align-items:center;gap:11px;font-weight:900}.footer-logo b{color:#13c6ff}.footer-logo small{display:block;font-size:9px;letter-spacing:6px;margin-top:7px}.footer h3{margin:0 0 12px;font-size:16px}.footer p,.footer a{font-size:13px;line-height:1.7;color:#d1daee}.footer a{display:block}.subscribe{display:flex;gap:9px}.subscribe input{height:45px;min-width:0;flex:1;border:0;border-radius:9px;padding:0 14px;background:#1b2c4d;color:#fff}.subscribe button{height:45px;border:0;border-radius:9px;background:#6d28d9;color:#fff;padding:0 18px;font-weight:800}.footer-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:28px;padding-top:17px;display:flex;justify-content:space-between;gap:20px;color:#d1daee;font-size:12px}
body.dark-mode{--bg:#070b1f;--text:#eef4ff;--muted:#a9b8d8;--line:rgba(255,255,255,.12);background:#070b1f;color:#eef4ff}body.dark-mode .tool-panel,body.dark-mode .stats-card,body.dark-mode .preview-card,body.dark-mode .security-card,body.dark-mode .related-card,body.dark-mode .seo-content,body.dark-mode .info-grid article,body.dark-mode .file-card,body.dark-mode .ad-slot-sidebar,body.dark-mode .search-popover{background:#0f1734;color:#eef4ff}body.dark-mode .drop-zone{background:#0b1430;border-color:#394b76}body.dark-mode .drop-zone strong,body.dark-mode .file-info strong{color:#fff}body.dark-mode .drop-zone>span:not(.upload-icon),body.dark-mode .drop-zone small,body.dark-mode .file-info small{color:#b9c7e6}body.dark-mode .secondary-btn{background:#17234b;color:#fff}body.dark-mode .file-card,body.dark-mode .related-card a{border-color:#263654}body.dark-mode .search-input-wrap input{background:#081025;color:#fff;border-color:#263654}
@media(max-width:1300px){.container{width:min(1280px,calc(100% - 36px))}.content-wrap{grid-template-columns:1fr 300px;gap:22px}}
@media(max-width:980px){.menu{display:none}.top-pill{display:none}.mobile-menu-btn{display:grid}.menu.open{display:flex;position:absolute;top:68px;left:16px;right:16px;flex-direction:column;align-items:stretch;background:#071047;border-radius:16px;padding:12px;box-shadow:0 25px 55px rgba(0,0,0,.25)}.hero-content{grid-template-columns:1fr;text-align:center;padding:36px 0 60px}.hero p{margin-inline:auto}.hero-badges{justify-content:center}.hero-art{display:none}.content-wrap{grid-template-columns:1fr}.sidebar{position:static}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:720px){.container{width:calc(100% - 24px)}.search-popover{position:fixed;top:76px;left:12px;right:12px;width:auto}.hero h1{font-size:39px}.hero p{font-size:16px}.tool-panel{padding:17px}.panel-head,.workspace-head{align-items:flex-start;flex-direction:column}.drop-zone{min-height:220px;padding:22px}.file-card{grid-template-columns:34px 40px minmax(0,1fr)}.file-actions{grid-column:1/-1;justify-content:flex-end}.info-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.subscribe{flex-direction:column}.footer-bottom{flex-direction:column}}
@media(max-width:480px){.workspace-actions{width:100%}.workspace-actions button{flex:1}.file-action span{display:none}}


/* Module 2: individual PDF page organizer */
.page-organizer{margin-top:24px;border-top:1px solid var(--line);padding-top:22px}
.organizer-head{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;margin-bottom:16px}
.organizer-head h3{margin:0}.organizer-head p{margin:6px 0 0;color:var(--muted);font-weight:650}
.organizer-actions{display:flex;gap:8px}
.organizer-actions button:disabled{opacity:.5;cursor:not-allowed}
.page-loading{min-height:90px;display:flex;align-items:center;justify-content:center;gap:12px;border:1px solid #dce6f5;border-radius:14px;background:#f7faff;color:#38517a;font-weight:850}
.spinner{width:22px;height:22px;border:3px solid #c8d6ef;border-top-color:#6d28d9;border-radius:50%;animation:tw-spin .8s linear infinite}
@keyframes tw-spin{to{transform:rotate(360deg)}}
.page-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px}
.page-empty{padding:28px;border:1px dashed #bac8df;border-radius:14px;text-align:center;color:#74839d;background:#fafcff}
.page-card{position:relative;border:1px solid #dfe7f2;border-radius:13px;background:#fff;padding:9px;box-shadow:0 7px 20px rgba(8,15,59,.05);transition:.18s}
.page-card:hover{transform:translateY(-2px);box-shadow:0 13px 28px rgba(8,15,59,.11)}
.page-card.dragging{opacity:.38}.page-card.drag-target{border-color:#6d28d9;box-shadow:0 0 0 3px rgba(109,40,217,.11)}
.page-thumb-button{display:block;width:100%;border:0;padding:0;background:transparent;cursor:pointer}
.page-thumb-wrap{position:relative;aspect-ratio:3/4;display:grid;place-items:center;overflow:hidden;border-radius:8px;background:#edf2f8}
.page-thumb-wrap canvas{display:block;max-width:100%;max-height:100%;width:auto;height:auto;transform-origin:center}
.page-number{position:absolute;left:7px;top:7px;z-index:2;min-width:25px;height:25px;padding:0 6px;border-radius:7px;display:grid;place-items:center;background:rgba(5,9,39,.88);color:#fff;font-size:11px;font-weight:900}
.page-source{display:block;margin-top:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:#52617d;font-size:10px;font-weight:750}
.page-controls{display:grid;grid-template-columns:repeat(4,1fr);gap:5px;margin-top:8px}
.page-controls button{height:30px;border:0;border-radius:7px;background:#edf3fb;color:#244a88;font-weight:900;cursor:pointer;font-size:13px}
.page-controls button:hover{background:#dfe9f8}
.page-controls button.remove-page{background:#fff0f0;color:#b91c1c}
.rotation-badge{position:absolute;right:7px;top:7px;z-index:2;padding:4px 6px;border-radius:6px;background:rgba(109,40,217,.9);color:#fff;font-size:9px;font-weight:900}
.preview-toolbar{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:13px;padding:8px;border-radius:10px;background:#f1f5fb}
.preview-toolbar button{border:0;border-radius:8px;background:#fff;color:#214a90;padding:7px 10px;font-weight:900;cursor:pointer;box-shadow:0 2px 8px rgba(8,15,59,.07)}
.preview-toolbar strong{font-size:12px;min-width:43px;text-align:center}
.canvas-preview-wrap{height:410px;margin-top:12px;overflow:auto;border-radius:10px;background:#e8edf4;padding:15px;text-align:center}
.canvas-preview-wrap canvas{display:inline-block;background:#fff;box-shadow:0 12px 30px rgba(0,0,0,.18);transform-origin:top center}
body.dark-mode .page-card{background:#0b1430;border-color:#263654}
body.dark-mode .page-loading,body.dark-mode .page-empty{background:#0b1430;border-color:#394b76;color:#b9c7e6}
body.dark-mode .page-thumb-wrap{background:#17234b}
body.dark-mode .page-source{color:#b9c7e6}
body.dark-mode .page-controls button{background:#17234b;color:#dce8ff}
body.dark-mode .preview-toolbar{background:#17234b}
body.dark-mode .preview-toolbar button{background:#0b1430;color:#dce8ff}
body.dark-mode .canvas-preview-wrap{background:#071025}
@media(max-width:1300px){.page-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(max-width:900px){.page-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:620px){.organizer-head{flex-direction:column}.page-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.organizer-actions{width:100%}.organizer-actions button{flex:1}.canvas-preview-wrap{height:330px}}


/* Module 3: merge and download engine */
.merge-settings{margin-top:24px;border-top:1px solid var(--line);padding-top:22px}
.merge-settings-head h3{margin:0}.merge-settings-head p{margin:6px 0 0;color:var(--muted);font-weight:650}
.settings-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:16px}
.settings-grid label>span{display:block;margin-bottom:7px;font-size:13px;font-weight:900;color:#172554}
.settings-grid input,.settings-grid select{width:100%;border:1px solid #d7e0ee;border-radius:11px;padding:12px 13px;background:#fff;color:#071331;outline:none}
.settings-grid input:focus,.settings-grid select:focus{border-color:#6d28d9;box-shadow:0 0 0 4px rgba(109,40,217,.10)}
.setting-check{display:flex;align-items:center;gap:9px;margin-top:14px;color:#52617d;font-size:13px;font-weight:750}
.setting-check input{width:17px;height:17px}
.merge-progress{margin-top:20px;padding:16px;border:1px solid #dce6f5;border-radius:13px;background:#f7faff}
.progress-track{height:11px;border-radius:999px;background:#dce5f3;overflow:hidden}
.progress-track span{display:block;width:0;height:100%;background:linear-gradient(90deg,#0867ff,#6d28d9);transition:width .25s ease}
.merge-progress strong{display:block;margin-top:9px;color:#38517a;font-size:13px}
.merge-actions{display:flex;flex-direction:column;align-items:center}
body.dark-mode .settings-grid label>span{color:#eef4ff}
body.dark-mode .settings-grid input,body.dark-mode .settings-grid select{background:#081025;color:#eef4ff;border-color:#263654}
body.dark-mode .setting-check{color:#b9c7e6}
body.dark-mode .merge-progress{background:#0b1430;border-color:#394b76}
body.dark-mode .progress-track{background:#17234b}
body.dark-mode .merge-progress strong{color:#d5e1f8}
@media(max-width:720px){.settings-grid{grid-template-columns:1fr}}


/* Module 4 production polish */
.skip-link{position:fixed;left:12px;top:-60px;z-index:9999;background:#fff;color:#071331;padding:10px 14px;border-radius:8px;box-shadow:0 8px 25px rgba(0,0,0,.2);font-weight:900}
.skip-link:focus{top:12px}
.noscript-warning{padding:12px 18px;background:#fff3cd;color:#7a5a00;text-align:center;font-weight:800}
.memory-warning{margin-top:14px;padding:13px 15px;border-radius:12px;background:#fff7ed;border:1px solid #fed7aa;color:#9a3412;font-weight:750}
.memory-warning.critical{background:#fff0f0;border-color:#fecaca;color:#b91c1c}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible,.drop-zone:focus-within{outline:3px solid rgba(8,103,255,.45);outline-offset:3px}
.file-card[aria-grabbed="true"],.page-card[aria-grabbed="true"]{box-shadow:0 0 0 3px rgba(109,40,217,.2)}
.success-state{margin-top:18px;padding:16px;border-radius:13px;background:#ecfdf5;border:1px solid #a7f3d0;color:#166534;font-weight:800;text-align:center}
.error-state{margin-top:18px;padding:16px;border-radius:13px;background:#fff1f2;border:1px solid #fecdd3;color:#be123c;font-weight:800;text-align:center}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.001ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important;transition-duration:.001ms!important}}
@media print{.header,.hero,.sidebar,.footer,.drop-zone,.workspace-actions,.page-controls,.merge-settings,.merge-actions{display:none!important}.main-shell{margin:0}.content-wrap{display:block}.tool-panel{box-shadow:none;border:0}}


/* PDF Split specific interface */
.split-art{display:flex;align-items:center;gap:15px}.split-art span{width:120px;height:150px;border-radius:16px;display:grid;place-items:center;color:#fff;font-weight:950;font-size:24px;box-shadow:0 22px 50px rgba(0,0,0,.3)}.split-art span:first-child{background:linear-gradient(135deg,#ef4444,#be123c);transform:rotate(-6deg)}.split-art span:last-child{background:linear-gradient(135deg,#0867ff,#6d28d9);transform:rotate(6deg)}.split-art b{width:45px;height:45px;position:relative}.split-art b:before,.split-art b:after{content:"";position:absolute;left:2px;right:2px;top:21px;height:3px;background:#fff;transform:rotate(30deg)}.split-art b:after{transform:rotate(-30deg)}
.file-summary{display:grid;grid-template-columns:48px minmax(0,1fr) auto;gap:13px;align-items:center;margin-top:22px;padding:14px;border:1px solid #dfe7f2;border-radius:14px}.file-badge{width:46px;height:50px;border-radius:10px;display:grid;place-items:center;background:linear-gradient(135deg,#ef4444,#be123c);color:#fff;font-weight:950;font-size:11px}.file-summary strong{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-summary small{display:block;margin-top:4px;color:#64748b}
.split-options,.output-settings{margin-top:23px;border-top:1px solid var(--line);padding-top:21px}.split-options h3,.output-settings h3{margin:0 0 14px}.mode-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:11px}.mode-card{position:relative;border:1px solid #dfe7f2;border-radius:13px;padding:15px;cursor:pointer;background:#fff}.mode-card.active{border-color:#0867ff;box-shadow:0 0 0 3px rgba(8,103,255,.09);background:#f4f8ff}.mode-card input{position:absolute;right:12px;top:12px}.mode-card strong,.mode-card small{display:block;padding-right:22px}.mode-card small{margin-top:6px;color:#64748b;line-height:1.4}
.range-panel{margin-top:15px;padding:15px;border-radius:13px;background:#f7faff;border:1px solid #e2eaf6}.range-panel label>span{display:block;margin-bottom:7px;font-weight:900;font-size:13px}.range-panel input,.range-panel textarea{width:100%;border:1px solid #d7e0ee;border-radius:10px;padding:12px 13px;background:#fff;outline:none}.range-panel textarea{min-height:115px;resize:vertical}.quick-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}.quick-actions button{border:0;border-radius:9px;background:#e8f0fc;color:#214a90;padding:9px 12px;font-weight:850;cursor:pointer}
.page-card.selected{border-color:#0867ff;box-shadow:0 0 0 3px rgba(8,103,255,.14)}.page-select-mark{position:absolute;right:7px;bottom:7px;width:24px;height:24px;border-radius:50%;display:grid;place-items:center;background:#0867ff;color:#fff;font-size:13px;font-weight:950}.organizer-head>strong{padding:7px 11px;border-radius:999px;background:#eaf2ff;color:#0757db;font-size:12px}
.settings-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.settings-grid label>span{display:block;margin-bottom:7px;font-size:13px;font-weight:900}.settings-grid input,.settings-grid select{width:100%;border:1px solid #d7e0ee;border-radius:11px;padding:12px 13px;background:#fff}
.split-progress{margin-top:20px;padding:16px;border:1px solid #dce6f5;border-radius:13px;background:#f7faff}.progress-track{height:11px;border-radius:999px;background:#dce5f3;overflow:hidden}.progress-track span{display:block;width:0;height:100%;background:linear-gradient(90deg,#0867ff,#6d28d9);transition:width .25s}.split-progress strong{display:block;margin-top:9px;color:#38517a;font-size:13px}.split-actions{text-align:center;margin-top:20px;padding-top:20px;border-top:1px solid var(--line)}.split-actions p{font-size:12px;color:#6b7b96}
body.dark-mode .file-summary,body.dark-mode .mode-card{background:#0b1430;border-color:#263654}body.dark-mode .mode-card.active{background:#17234b;border-color:#4a78ff}body.dark-mode .range-panel,body.dark-mode .split-progress{background:#0b1430;border-color:#394b76}body.dark-mode .range-panel input,body.dark-mode .range-panel textarea,body.dark-mode .settings-grid input,body.dark-mode .settings-grid select{background:#081025;color:#eef4ff;border-color:#263654}
@media(max-width:900px){.mode-grid{grid-template-columns:1fr}.settings-grid{grid-template-columns:1fr}}


/* PDF Compress specific interface */
.compress-art{display:flex;align-items:center;gap:14px}.compress-art span{width:120px;height:150px;border-radius:16px;display:grid;place-items:center;color:#fff;font-weight:950;font-size:24px;box-shadow:0 22px 50px rgba(0,0,0,.3)}.compress-art span:first-child{background:linear-gradient(135deg,#ef4444,#be123c);transform:scale(1.06)}.compress-art span:last-child{background:linear-gradient(135deg,#0867ff,#6d28d9);transform:scale(.78)}.compress-art b{font-size:36px;color:#fff}
.compression-options,.output-settings{margin-top:23px;border-top:1px solid var(--line);padding-top:21px}.compression-options h3,.output-settings h3{margin:0 0 14px}.quality-panel{margin-top:15px;padding:15px;border-radius:13px;background:#f7faff;border:1px solid #e2eaf6}.quality-panel label>small{display:block;margin-top:7px;color:#64748b;font-weight:800}.loss-warning{margin-top:13px;padding:12px 14px;border-radius:10px;background:#fff7ed;border:1px solid #fed7aa;color:#9a3412;font-size:13px;line-height:1.5}
.compression-progress{margin-top:20px;padding:16px;border:1px solid #dce6f5;border-radius:13px;background:#f7faff}.compression-progress strong{display:block;margin-top:9px;color:#38517a;font-size:13px}.compression-actions{text-align:center;margin-top:20px;padding-top:20px;border-top:1px solid var(--line)}.compression-actions p{font-size:12px;color:#6b7b96}.page-controls{display:block}.page-controls button{width:100%}
body.dark-mode .quality-panel,body.dark-mode .compression-progress{background:#0b1430;border-color:#394b76}body.dark-mode .loss-warning{background:#3a2512;border-color:#7c4a18;color:#fed7aa}