:root{
--bg:#050d1d;--surface:#0a1730;--surface-2:#0e1f3e;--surface-3:#132a50;
--text:#f6f9ff;--muted:#a8b7ce;--accent:#49c8ff;--accent-2:#2389ff;
--border:rgba(166,205,255,.15);--danger:#ff6d7c;--success:#52d39a;
--shadow:0 20px 60px rgba(0,0,0,.28);--radius:18px;--max:1240px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 70% -10%,#102c59 0,#07152f 35%,var(--bg) 72%);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.6;min-height:100vh}
a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button{cursor:pointer}
.site-header{position:sticky;top:0;z-index:50;background:rgba(5,13,29,.88);backdrop-filter:blur(16px);border-bottom:1px solid var(--border);padding-top:env(safe-area-inset-top)}
.header-inner{max-width:var(--max);height:72px;margin:auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:12px;min-width:0}.brand-logo{display:block;width:auto;height:38px;max-width:150px;object-fit:contain}.brand-fallback{font-size:22px;font-weight:800;letter-spacing:-.04em}.brand-product{font-size:13px;color:var(--muted);border-left:1px solid var(--border);padding-left:12px;white-space:nowrap}
.desktop-nav{display:flex;align-items:center;gap:4px;position:relative}.desktop-nav>a,.nav-more{border:0;background:transparent;color:var(--muted);padding:10px 12px;border-radius:10px;font-weight:600}.desktop-nav>a:hover,.desktop-nav>a.active,.nav-more:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-more{display:flex;gap:7px;align-items:center}.more-menu{display:none;position:absolute;right:0;top:52px;width:250px;padding:8px;background:#0b1b37;border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow)}.more-menu.open{display:grid}.more-menu a{padding:10px 12px;border-radius:9px;color:var(--muted)}.more-menu a:hover{background:rgba(255,255,255,.06);color:#fff}
.mobile-menu-button,.mobile-nav{display:none}
main{max-width:var(--max);margin:0 auto;padding:0 24px}
.hero{padding:80px 0 42px;text-align:center}.hero h1{max-width:900px;margin:10px auto 16px;font-size:clamp(2.25rem,6vw,4.7rem);line-height:1.03;letter-spacing:-.055em}.hero p{max-width:760px;margin:0 auto;color:var(--muted);font-size:clamp(1rem,2vw,1.2rem)}
.eyebrow{display:inline-flex;color:var(--accent);font-size:12px;font-weight:800;letter-spacing:.13em;text-transform:uppercase}.hero-actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin-top:28px}
.btn{min-height:46px;padding:11px 18px;border:1px solid var(--border);border-radius:12px;background:var(--surface-2);color:#fff;font-weight:750;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:.18s ease}.btn:hover{transform:translateY(-1px);border-color:rgba(73,200,255,.5)}.btn-primary{background:linear-gradient(135deg,var(--accent-2),#25b8ec);border-color:transparent;color:#031126}.btn-danger{background:rgba(255,109,124,.1);border-color:rgba(255,109,124,.3);color:#ff9aa5}.btn-small{min-height:38px;padding:8px 12px;font-size:14px}
.upload-zone{margin:34px auto 50px;max-width:1000px;border:1px dashed rgba(73,200,255,.5);background:linear-gradient(180deg,rgba(20,56,105,.6),rgba(10,23,48,.8));border-radius:24px;padding:48px 24px;text-align:center;transition:.2s}.upload-zone.drag{border-color:var(--accent);background:rgba(35,137,255,.13);transform:scale(1.005)}.upload-zone h2{margin:0 0 6px;font-size:24px}.upload-zone p{color:var(--muted);margin:0 0 20px}.file-input{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important;opacity:0!important}.upload-button{cursor:pointer}
.section-heading{margin:46px 0 18px}.section-heading h2{margin:3px 0 0;font-size:clamp(1.6rem,3vw,2.3rem);letter-spacing:-.03em}.section-heading p{color:var(--muted)}
.tool-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.tool-grid.compact{grid-template-columns:repeat(3,minmax(0,1fr))}
.tool-card{position:relative;min-width:0;padding:20px;background:linear-gradient(180deg,rgba(13,31,62,.92),rgba(8,20,40,.92));border:1px solid var(--border);border-radius:16px;display:flex;gap:13px;align-items:flex-start;min-height:126px;transition:.2s}.tool-card:hover{border-color:rgba(73,200,255,.38);transform:translateY(-2px)}.tool-icon{width:40px;height:40px;flex:0 0 40px;border-radius:11px;display:grid;place-items:center;background:rgba(73,200,255,.1);color:var(--accent);font-weight:900}.tool-card strong{display:block}.tool-card small{display:block;color:var(--muted);margin-top:5px;line-height:1.4}.card-arrow{position:absolute;right:16px;bottom:13px;color:var(--muted)}
.page-wrap{padding:42px 0 70px}.breadcrumbs{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:26px;flex-wrap:wrap}.breadcrumbs a:hover{color:#fff}.tool-intro{max-width:820px;margin-bottom:26px}.tool-intro h1{font-size:clamp(2rem,5vw,3.5rem);line-height:1.08;letter-spacing:-.045em;margin:6px 0 12px}.tool-intro p{color:var(--muted);font-size:1.08rem;margin:0}
.workspace{background:rgba(7,19,39,.72);border:1px solid var(--border);border-radius:22px;padding:20px;box-shadow:var(--shadow)}.workspace-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}.workspace-head h2{margin:0;font-size:1.1rem}.actions{display:flex;gap:8px;flex-wrap:wrap}.status{margin-top:12px;color:var(--muted);min-height:24px}.status.success{color:var(--success)}.status.error{color:#ff9aa5}.progress{height:7px;border-radius:10px;background:#102545;overflow:hidden;margin-top:12px}.progress>span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--accent-2),var(--accent));transition:width .2s}
.file-list{display:grid;gap:8px}.file-row{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:12px;padding:12px 14px;border:1px solid var(--border);background:rgba(255,255,255,.025);border-radius:13px}.drag-handle{color:var(--muted);cursor:grab}.file-name{font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-meta{font-size:12px;color:var(--muted)}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.field{display:grid;gap:7px}.field.full{grid-column:1/-1}.field label{font-weight:700;font-size:14px}.field input,.field select,.field textarea{width:100%;border:1px solid var(--border);background:#07152b;color:#fff;border-radius:11px;padding:11px 12px;outline:none}.field input:focus,.field select:focus,.field textarea:focus{border-color:rgba(73,200,255,.65);box-shadow:0 0 0 3px rgba(73,200,255,.08)}.field textarea{min-height:130px;resize:vertical}.hint{font-size:12px;color:var(--muted)}
.options{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.option{border:1px solid var(--border);padding:14px;border-radius:13px;background:rgba(255,255,255,.02)}.option:has(input:checked){border-color:rgba(73,200,255,.65);background:rgba(73,200,255,.06)}.option input{accent-color:#38bdf8}.option strong{display:block}.option small{display:block;color:var(--muted)}
.content-section{max-width:880px;margin:52px 0}.content-section h2{margin:28px 0 8px;font-size:1.55rem}.content-section h3{margin:22px 0 6px}.content-section p,.content-section li{color:#b7c4d8}.content-section ul{padding-left:22px}
.faq{display:grid;gap:8px}.faq details{border:1px solid var(--border);border-radius:12px;background:rgba(255,255,255,.02);padding:13px 15px}.faq summary{cursor:pointer;font-weight:750}.faq p{margin:9px 0 0}
.notice{padding:14px 16px;border:1px solid rgba(73,200,255,.2);background:rgba(73,200,255,.05);border-radius:13px;color:#c4d5eb}.notice.warn{border-color:rgba(255,183,77,.25);background:rgba(255,183,77,.05)}
.empty-state{text-align:center;padding:40px;color:var(--muted)}
.thumb-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}.thumb-card{border:1px solid var(--border);border-radius:13px;background:#07152b;padding:8px;position:relative}.thumb-card canvas{display:block;width:100%;height:auto;background:#fff;border-radius:8px}.thumb-card .thumb-label{font-size:12px;color:var(--muted);padding:6px 2px 1px;display:flex;justify-content:space-between;gap:5px}.thumb-card.selected{border-color:var(--accent);box-shadow:0 0 0 2px rgba(73,200,255,.13)}
.reader-shell{height:min(76vh,900px);min-height:560px;display:grid;grid-template-columns:230px minmax(0,1fr);grid-template-rows:minmax(0,1fr) auto;overflow:hidden;padding:0}.reader-sidebar{grid-row:1/2;overflow:auto;border-right:1px solid var(--border);padding:12px}.reader-main{overflow:auto;background:#111c2d;display:flex;justify-content:center;padding:26px;position:relative}.reader-pages{display:flex;flex-direction:column;align-items:center;gap:18px}.pdf-page-wrap{position:relative;box-shadow:0 10px 35px rgba(0,0,0,.45);background:#fff}.pdf-page-wrap canvas{display:block}.reader-toolbar{grid-column:1/-1;display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;padding:10px;border-top:1px solid var(--border);background:#07152b}.reader-top{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:10px}.reader-search{display:none;padding:10px;border:1px solid var(--border);background:#07152b;color:#fff;border-radius:10px}.reader-search.open{display:block}.page-counter{display:flex;align-items:center;gap:7px}.page-counter input{width:64px;text-align:center}
.result-box{margin-top:18px;border:1px solid var(--border);background:#07152b;border-radius:13px;padding:16px;max-height:500px;overflow:auto;white-space:pre-wrap}.metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.metric{padding:16px;border:1px solid var(--border);border-radius:13px;background:rgba(255,255,255,.02)}.metric strong{display:block;font-size:1.25rem}.metric span{font-size:12px;color:var(--muted)}
.page-list{display:grid;gap:10px}.page-item{display:grid;grid-template-columns:60px minmax(0,1fr) auto;gap:12px;align-items:center;padding:9px;border:1px solid var(--border);border-radius:13px;background:#07152b}.page-item canvas{width:60px;height:auto;background:#fff}.page-item.dragging{opacity:.45}.page-item-actions{display:flex;gap:6px;flex-wrap:wrap}
.site-footer{border-top:1px solid var(--border);margin-top:40px;padding:34px 24px calc(24px + env(safe-area-inset-bottom));background:#040b18}.footer-inner{max-width:var(--max);margin:auto;display:flex;justify-content:space-between;gap:30px}.footer-inner p{max-width:500px;color:var(--muted);margin:7px 0}.footer-brand{display:flex;align-items:center;gap:10px}.footer-logo{height:30px;width:auto;object-fit:contain}.footer-links{display:flex;gap:14px;flex-wrap:wrap;align-content:flex-start}.footer-links a{color:var(--muted)}.footer-links a:hover,.muted a:hover{color:#fff}.copyright{max-width:var(--max);margin:25px auto 0;padding-top:18px;border-top:1px solid var(--border);color:#75869f;font-size:12px}
.toast{position:fixed;right:20px;bottom:20px;z-index:100;max-width:min(360px,calc(100vw - 40px));padding:13px 15px;border:1px solid var(--border);border-radius:12px;background:#0c1e3c;box-shadow:var(--shadow);display:none}.toast.show{display:block}
.visually-hidden{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
@media (max-width:1050px){.tool-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.desktop-nav>a:nth-child(n+4),.nav-more{display:none}.mobile-menu-button{display:inline-grid;place-items:center;width:44px;height:44px;border:1px solid var(--border);background:transparent;color:#fff;border-radius:11px}.mobile-nav{display:none;padding:8px 18px 16px;border-top:1px solid var(--border);background:#07152b}.mobile-nav.open{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:5px}.mobile-nav a{padding:11px;border-radius:9px;color:var(--muted)}.mobile-nav a:hover{background:rgba(255,255,255,.05);color:#fff}}
@media (max-width:820px){.header-inner{height:64px;padding:0 16px}.brand-logo{height:34px;max-width:125px}.brand-product{display:none}.tool-grid,.tool-grid.compact{grid-template-columns:repeat(2,minmax(0,1fr))}.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.options{grid-template-columns:1fr}.metric-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.reader-shell{grid-template-columns:1fr;min-height:520px;height:72vh}.reader-sidebar{display:none}.reader-main{padding:15px}.reader-toolbar{padding-bottom:calc(10px + env(safe-area-inset-bottom))}.footer-inner{flex-direction:column}}
@media (max-width:560px){main{padding:0 14px}.hero{padding:52px 0 25px}.hero h1{font-size:clamp(2rem,11vw,3rem)}.hero-actions{display:grid;grid-template-columns:1fr}.hero-actions .btn{width:100%}.upload-zone{padding:34px 16px;border-radius:18px}.tool-grid,.tool-grid.compact{grid-template-columns:1fr}.tool-card{min-height:100px;padding:16px}.workspace{padding:13px;border-radius:17px}.workspace-head{align-items:flex-start;flex-direction:column}.actions{width:100%}.actions .btn{flex:1}.file-row{grid-template-columns:auto minmax(0,1fr) auto}.thumb-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.page-wrap{padding-top:28px}.reader-shell{margin-left:-14px;margin-right:-14px;border-radius:0;border-left:0;border-right:0;height:calc(100svh - 130px);min-height:450px}.reader-main{padding:8px}.reader-toolbar{gap:5px}.reader-toolbar .btn{min-height:40px;padding:8px 10px}.footer-links{display:grid;grid-template-columns:repeat(2,1fr)}}
@media (max-height:560px) and (orientation:landscape){.hero{padding:28px 0}.site-header{position:relative}.reader-shell{height:calc(100svh - 90px);min-height:380px}}
@media (pointer:coarse){.btn,.desktop-nav>a,.nav-more,.mobile-nav a{min-height:44px}.field input,.field select,.field textarea{min-height:44px}}

/* Final responsive/mobile layer */
.site-header{position:sticky;top:0;z-index:80;background:rgba(4,11,24,.94);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.header-inner{min-width:0}.brand{min-width:0;flex:0 1 auto}.brand-logo{display:block;max-width:min(145px,28vw);height:38px;object-fit:contain}.brand-product{white-space:nowrap}.desktop-nav{min-width:0;overflow:visible}.desktop-nav>a,.nav-more{white-space:nowrap}
.more-menu{z-index:100}.mobile-nav{z-index:90}
.pdf-page-wrap{touch-action:none}.annotation-layer{position:absolute;inset:0;pointer-events:none}.pdf-annotation{position:absolute;box-sizing:border-box;pointer-events:none}.pdf-annotation.highlight{background:rgba(255,220,45,.35);border-radius:2px}.pdf-annotation.underline{height:2px!important;background:#ef4444;border-radius:2px}.pdf-annotation.text{color:#1557a8;font-weight:700;white-space:pre-wrap;text-shadow:0 1px 0 #fff}.pdf-annotation.drawing{pointer-events:none}.btn.active{border-color:rgba(73,200,255,.9);background:rgba(73,200,255,.16);color:#fff}
.history-list{display:grid;gap:12px}.history-card{display:grid;grid-template-columns:52px minmax(0,1fr) auto;gap:14px;align-items:center;padding:15px;border:1px solid var(--border);border-radius:15px;background:rgba(255,255,255,.025)}.history-icon{width:52px;height:52px;border-radius:13px;display:grid;place-items:center;background:rgba(73,200,255,.1);color:var(--accent);font-weight:900}.history-main{min-width:0}.history-main strong{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.history-meta{font-size:12px;color:var(--muted);margin-top:5px}.history-progress{height:6px;border-radius:8px;background:#102545;overflow:hidden;margin-top:9px}.history-progress span{display:block;height:100%;background:linear-gradient(90deg,var(--accent-2),var(--accent))}.history-actions{display:flex;gap:7px;flex-wrap:wrap;justify-content:flex-end}
@media (max-width:1180px){.desktop-nav{display:none}.mobile-menu-button{display:inline-grid;place-items:center;width:44px;height:44px;border:1px solid var(--border);background:transparent;color:#fff;border-radius:11px}.header-inner{height:64px;padding:0 16px}.mobile-nav{display:none;padding:8px 16px 16px;border-top:1px solid var(--border);background:#07152b}.mobile-nav.open{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:5px}.mobile-nav a{padding:11px;border-radius:9px;color:var(--muted)}}
@media (max-width:760px){.brand-product{display:none}.brand-logo{height:34px;max-width:135px}.mobile-nav.open{grid-template-columns:1fr}.reader-toolbar{justify-content:stretch}.reader-toolbar .btn,.reader-toolbar .page-counter{flex:1 1 auto}.reader-toolbar .page-counter{justify-content:center}.history-card{grid-template-columns:44px minmax(0,1fr)}.history-icon{width:44px;height:44px}.history-actions{grid-column:1/-1;justify-content:stretch}.history-actions .btn{flex:1}.footer-inner{padding-bottom:8px}}
@media (max-width:430px){.header-inner{padding:0 11px}.brand-logo{max-width:120px}.page-wrap{padding-left:10px;padding-right:10px}.reader-shell{margin-left:-10px;margin-right:-10px}.reader-toolbar .btn{padding:7px 8px;font-size:12px}.reader-toolbar{gap:4px}.reader-toolbar .page-counter input{width:48px}.workspace-head .actions{width:100%}.workspace-head .actions .btn{width:100%}}

/* ToolPikz responsive v2: touch-first controls, compact headers, and mobile PDF focus mode */
html,body{max-width:100%;overflow-x:hidden}
button,input,select,textarea{font:inherit}
.site-header{contain:layout paint}
.header-inner{gap:12px}
.brand{max-width:44vw}
.brand-logo{max-width:clamp(96px,14vw,150px);height:38px}
.desktop-nav{display:flex;align-items:center;gap:4px;flex:1;justify-content:flex-end}
.desktop-nav>a,.nav-more{padding:10px 11px}
.reader-file-name{max-width:180px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--muted);font-size:12px;margin-right:auto}
.reader-toolbar-desktop{overflow-x:auto;justify-content:flex-start;scrollbar-width:thin}
.reader-toolbar-desktop>*{flex:0 0 auto}
.reader-mobile-toolbar,.reader-more-panel,.reader-exit-focus{display:none}
.pdf-page-placeholder{display:grid;place-items:center;background:#fff;color:#52647d}
.page-loading{font:600 13px/1.3 system-ui;padding:20px}

@media (max-width:1180px){
  .header-inner{height:64px}
  .desktop-nav{display:none}
  .mobile-menu-button{display:grid}
  .brand{max-width:calc(100% - 58px)}
}
@media (max-width:760px){
  .site-header{position:sticky}
  .header-inner{height:58px;padding:0 12px}
  .brand-logo{height:32px;max-width:128px}
  .mobile-menu-button{width:42px;height:42px;flex:0 0 42px}
  .mobile-nav.open{grid-template-columns:1fr;padding-bottom:calc(12px + env(safe-area-inset-bottom))}
  .page-wrap{padding-top:18px}
  .tool-intro{padding-bottom:10px}
  .reader-shell{position:relative;height:calc(100svh - 88px);min-height:480px;margin:10px -14px 0;border-radius:0;border-left:0;border-right:0;display:grid;grid-template-columns:1fr;grid-template-rows:minmax(0,1fr) 58px;padding:0}
  .reader-sidebar,.reader-toolbar-desktop{display:none!important}
  .reader-main{padding:10px 7px 18px;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;scroll-padding-top:12px}
  .reader-pages{gap:12px;width:100%}
  .pdf-page-wrap{max-width:100%;box-shadow:0 7px 24px rgba(0,0,0,.35)}
  .pdf-page-wrap canvas{max-width:100%;height:auto!important}
  .reader-mobile-toolbar{display:flex;grid-row:2;position:relative;z-index:20;align-items:center;justify-content:space-around;gap:3px;padding:5px 6px calc(5px + env(safe-area-inset-bottom));background:rgba(5,13,29,.97);border-top:1px solid var(--border);box-shadow:0 -8px 24px rgba(0,0,0,.24)}
  .reader-mobile-icon{appearance:none;border:0;background:transparent;color:#fff;border-radius:10px;min-width:46px;height:48px;padding:4px 5px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;touch-action:manipulation}
  .reader-mobile-icon:active,.reader-mobile-icon.active{background:rgba(73,200,255,.16)}
  .reader-mobile-icon small{font-size:9px;color:var(--muted);line-height:1}
  .mobile-page-field{display:flex;align-items:center;gap:3px;color:var(--muted);font-size:12px}
  .mobile-page-field input{width:44px;height:36px;text-align:center;border:1px solid var(--border);background:#0b1a34;color:#fff;border-radius:9px}
  .reader-more-panel{position:absolute;z-index:70;left:8px;right:8px;bottom:72px;padding:10px;display:none;grid-template-columns:repeat(3,minmax(0,1fr));gap:7px;border:1px solid var(--border);border-radius:16px;background:rgba(7,21,43,.98);box-shadow:0 18px 50px rgba(0,0,0,.45);backdrop-filter:blur(16px)}
  .reader-more-panel.open{display:grid}
  .reader-more-panel .btn{min-height:44px}
  .reader-exit-focus{position:fixed;z-index:200;top:calc(8px + env(safe-area-inset-top));right:10px;padding:9px 12px;border:1px solid var(--border);border-radius:12px;background:rgba(5,13,29,.9);color:#fff}
  body.reader-focus-mode .site-header,body.reader-focus-mode .page-wrap>.tool-intro,body.reader-focus-mode .page-wrap>.breadcrumbs,body.reader-focus-mode .page-wrap>.upload-zone,body.reader-focus-mode .page-wrap>.notice,body.reader-focus-mode .page-wrap>.content-section,body.reader-focus-mode .page-wrap>.related-section,body.reader-focus-mode .site-footer,body.reader-focus-mode #readerStatus{display:none!important}
  body.reader-focus-mode .page-wrap{padding:0;margin:0;max-width:none}
  body.reader-focus-mode .reader-shell{position:fixed;inset:0;z-index:150;width:100vw;height:100svh;margin:0;border:0;border-radius:0}
  body.reader-focus-mode .reader-exit-focus{display:block}
  body.reader-focus-mode .reader-mobile-toolbar{padding-bottom:calc(5px + env(safe-area-inset-bottom))}
  .upload-zone{margin:20px 0 28px;padding:30px 14px}
  .upload-zone .btn{min-height:46px;width:min(100%,320px)}
  .tool-card{min-width:0}
}
@media (max-width:480px){
  .header-inner{padding:0 9px}
  .brand-logo{max-width:112px;height:30px}
  .reader-shell{height:calc(100svh - 72px)}
  .reader-mobile-toolbar{gap:0;padding-left:2px;padding-right:2px}
  .reader-mobile-icon{min-width:42px}
  .reader-more-panel{grid-template-columns:repeat(2,minmax(0,1fr));bottom:70px}
  .mobile-page-field input{width:40px}
  .upload-zone h2{font-size:20px}
}
@media (min-width:761px) and (max-width:1024px){
  .header-inner{padding:0 18px}
  .brand-product{display:none}
  .reader-shell{height:calc(100svh - 150px);min-height:520px}
  .reader-sidebar{width:190px}
}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* ToolPikz V4 reliability layer: native upload labels + tablet/mobile reader layout */
.upload-zone{position:relative}
.upload-button{user-select:none;-webkit-user-select:none;touch-action:manipulation}
.file-input:focus-visible + *{outline:2px solid var(--accent);outline-offset:3px}
@media (max-width:1180px){
  .reader-toolbar-desktop{display:none!important}
  .reader-shell{grid-template-columns:1fr;grid-template-rows:minmax(0,1fr) 60px;height:calc(100svh - 92px);min-height:520px}
  .reader-sidebar{display:none!important}
  .reader-mobile-toolbar{display:flex;grid-row:2;position:relative;z-index:20;align-items:center;justify-content:space-around;gap:4px;padding:5px 7px calc(5px + env(safe-area-inset-bottom));background:rgba(5,13,29,.98);border-top:1px solid var(--border);box-shadow:0 -8px 24px rgba(0,0,0,.25)}
  .reader-mobile-icon{appearance:none;border:1px solid var(--border);background:#0b1a34;color:#fff;border-radius:10px;min-width:50px;height:48px;padding:4px 6px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;touch-action:manipulation}
  .reader-mobile-icon small{font-size:9px;color:var(--muted);line-height:1}
  .mobile-page-field{display:flex;align-items:center;gap:3px;color:var(--muted);font-size:12px}
  .mobile-page-field input{width:48px;height:38px;text-align:center;border:1px solid var(--border);background:#0b1a34;color:#fff;border-radius:9px}
}
@media (max-width:600px){
  .reader-shell{height:calc(100svh - 72px);min-height:470px;margin-left:-10px;margin-right:-10px;border-radius:0;border-left:0;border-right:0}
  .reader-main{padding:8px 5px 12px}
  .reader-mobile-toolbar{gap:2px;padding-left:3px;padding-right:3px}
  .reader-mobile-icon{min-width:44px;height:46px;padding-left:3px;padding-right:3px}
  .mobile-page-field input{width:42px}
  .reader-more-panel{left:6px;right:6px;bottom:70px}
}