:root{
  --bg:#f6f9ff;
  --card:#ffffff;
  --line:#dfe7f4;
  --text:#12214d;
  --muted:#62708f;
  --primary:#1e5eff;
  --primary-2:#00b8a9;
  --green:#10b981;
  --shadow:0 12px 30px rgba(25,74,150,.08);
  --radius:22px;
  --radius-sm:16px;
  --max:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;color:var(--text);background:linear-gradient(180deg,#f7faff 0%,#fbfdff 100%)}
a{color:inherit;text-decoration:none}
img{max-width:100%}
button,input,textarea,select{font:inherit}
.container{max-width:var(--max);margin:0 auto;padding:0 20px}
.topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.88);backdrop-filter:blur(14px);border-bottom:1px solid rgba(222,232,245,.9)}
.nav{display:flex;align-items:center;gap:18px;min-height:78px}
.brand{display:flex;align-items:center;gap:14px;font-weight:800;font-size:18px;white-space:nowrap}
.brand svg{width:40px;height:40px;flex:0 0 auto}
.nav-links{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-left:14px}
.nav-link{display:flex;align-items:center;gap:8px;color:#314268;font-weight:600;padding:10px 12px;border-radius:12px}
.nav-link:hover{background:#eef4ff}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.search{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);height:46px;border-radius:14px;padding:0 14px;min-width:240px;box-shadow:0 3px 12px rgba(50,80,130,.05)}
.search input{border:0;outline:0;width:100%;background:transparent;color:var(--text)}
.lang-switch{display:flex;align-items:center;gap:8px;font-weight:700;color:#506080;white-space:nowrap}
.lang-switch button{border:0;background:transparent;padding:0 2px;color:inherit;cursor:pointer;font-weight:800}
.lang-switch button.active{color:var(--primary)}
.menu-btn{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px;box-shadow:var(--shadow)}
.hero{padding:42px 0 26px;overflow:hidden}
.hero-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:center}
.hero-copy{position:relative;padding:18px 0}
.hero-copy:before{content:"";position:absolute;left:-120px;top:-30px;width:340px;height:340px;background:radial-gradient(circle at center, rgba(30,94,255,.09), transparent 70%);z-index:-1}
.hero h1{font-size:64px;line-height:.98;margin:0 0 18px;letter-spacing:-.03em}
.hero h1 span{background:linear-gradient(135deg,var(--primary),#4f89ff 60%,#00a9b9);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{font-size:22px;line-height:1.55;color:#415277;max-width:690px;margin:0 0 10px}
.hero .accent{color:var(--primary)}
.hero .accent-green{color:#00a48a;font-weight:700}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:54px;padding:0 24px;border-radius:15px;border:1px solid transparent;font-weight:800;cursor:pointer;transition:.2s ease;box-shadow:var(--shadow)}
.btn.primary{background:linear-gradient(135deg,var(--primary),#0956ff);color:#fff}
.btn.primary:hover{transform:translateY(-1px)}
.btn.secondary{background:#fff;border-color:#bcd0ff;color:var(--primary)}
.mini-note{display:flex;align-items:center;gap:10px;color:#00a48a;font-size:18px;font-weight:700;margin-top:14px}
.hero-panel{position:relative;background:linear-gradient(180deg,#fff 0%,#fbfdff 100%);border:1px solid #e4ecfb;border-radius:28px;padding:18px;box-shadow:var(--shadow)}
.window-dots{display:flex;gap:8px;padding:6px 8px 16px}
.window-dots span{width:10px;height:10px;border-radius:50%;display:inline-block}
.window-dots span:nth-child(1){background:#ff7b71}.window-dots span:nth-child(2){background:#ffbe45}.window-dots span:nth-child(3){background:#29c656}
.tools-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.tool-tile{background:#fff;border:1px solid #e8eef8;border-radius:18px;padding:16px;box-shadow:0 5px 16px rgba(40,70,120,.04)}
.icon-box{width:52px;height:52px;border-radius:15px;display:grid;place-items:center;font-size:25px;font-weight:800}
.icon-pdf{background:#ffe9e9;color:#ff4f4f}.icon-image{background:#e5fbf5;color:#1bb98b}.icon-text{background:#e9f0ff;color:#2f68ff}.icon-csv{background:#e7f8e6;color:#16a34a}.icon-date{background:#fff1df;color:#f08d1d}.icon-gen{background:#f1ebff;color:#8854ff}.icon-calc{background:#efe9ff;color:#7c3aed}
.tool-tile h3{font-size:17px;margin:12px 0 6px}.tool-tile p{font-size:14px;line-height:1.45;color:#6b7794;margin:0}
.section{padding:16px 0 28px}
.section-title{display:flex;align-items:center;justify-content:space-between;gap:14px;margin:0 0 18px}
.section-title h2{font-size:28px;margin:0}
.section-title a{color:var(--primary);font-weight:800}
.categories{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.category-card,.popular-card,.feature-card,.step-card,.mini-tool-card,.tool-card,.faq-item,.privacy-card,.upload-card,.side-card{background:var(--card);border:1px solid #e6edf9;border-radius:var(--radius-sm);box-shadow:var(--shadow)}
.category-card{padding:18px;text-align:left;transition:.2s ease}
.category-card:hover,.popular-card:hover,.tool-card:hover{transform:translateY(-2px)}
.category-card h3{margin:12px 0 6px;font-size:21px}
.category-card p{margin:0;color:var(--muted)}
.popular-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.popular-card{padding:16px;display:flex;gap:14px;align-items:flex-start}
.popular-card h3{margin:0 0 6px;font-size:18px}
.popular-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.45}
.features-row{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:18px}
.feature-card{padding:18px;display:flex;gap:14px;align-items:flex-start;background:linear-gradient(180deg,#fff,#f7fbff)}
.feature-card h3{margin:0 0 6px;font-size:18px}.feature-card p{margin:0;color:var(--muted);font-size:14px}
.how-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.step-card{padding:22px;display:flex;gap:14px;align-items:flex-start;min-height:148px}
.step-no{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;font-weight:800;background:#edf3ff;color:var(--primary)}
.step-card h3{margin:0 0 8px}.step-card p{margin:0;color:var(--muted)}
.footer{margin-top:26px;padding:32px 0 18px;background:linear-gradient(180deg,rgba(241,247,255,.9),#fff);border-top:1px solid #e3ebf9}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr 1fr;gap:18px}
.footer-col h4{margin:0 0 12px;font-size:16px}
.footer-col a,.footer-col div{display:block;color:#566581;margin:8px 0;font-size:14px}
.footer-brand p{color:#586683;max-width:380px}
.copyright{text-align:center;color:#7a87a2;font-size:14px;margin-top:18px;padding-top:16px;border-top:1px solid #e7eef9}
.page-hero{padding:28px 0 12px}
.breadcrumbs{display:flex;flex-wrap:wrap;gap:10px;color:#7382a0;font-size:14px;margin-bottom:14px}
.page-head{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.page-head h1{margin:0;font-size:46px;letter-spacing:-.02em}
.page-head p{margin:8px 0 0;color:#5d6b87;font-size:18px}
.tool-layout{display:grid;grid-template-columns:minmax(0,1.3fr) 340px;gap:20px;align-items:start}
.upload-card{padding:20px}
.dropzone{padding:44px 16px;border:2px dashed #8bb0ff;border-radius:18px;display:grid;place-items:center;text-align:center;background:#fbfdff}
.dropzone h3{margin:16px 0 8px;font-size:30px}.dropzone p{margin:0 0 18px;color:var(--muted)}
.file-list,.tool-list{display:grid;gap:10px;margin-top:18px}
.file-row,.tool-list-item{display:flex;align-items:center;gap:12px;justify-content:space-between;padding:14px 16px;border:1px solid #e7eef9;border-radius:14px;background:#fff}
.file-row small,.tool-list-item small{color:var(--muted)}
.file-actions{display:flex;gap:8px;align-items:center}
.icon-btn{height:40px;min-width:40px;border-radius:12px;border:1px solid #dbe6fb;background:#fff;cursor:pointer;color:#48618f}
.toolbar{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;margin-top:16px}
.side-card{padding:18px}
.side-card h3{margin:0 0 14px;font-size:18px}
.side-item{display:flex;gap:12px;align-items:flex-start;padding:12px 0;border-bottom:1px solid #eef3fb}
.side-item:last-child{border-bottom:0}
.side-item p{margin:0;color:#617091;font-size:14px;line-height:1.45}
.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.mini-tool-card{padding:16px;display:flex;gap:12px;justify-content:space-between;align-items:center}
.mini-tool-card p{color:#617091;font-size:14px;margin:6px 0 0}
.faq-grid{display:grid;grid-template-columns:1.1fr .8fr;gap:18px;margin-top:18px}
.faq-list{display:grid;gap:10px}
.faq-item{padding:0;overflow:hidden}
.faq-q{width:100%;border:0;background:#fff;padding:18px 20px;text-align:left;font-weight:700;color:var(--text);display:flex;align-items:center;justify-content:space-between;cursor:pointer}
.faq-a{padding:0 20px 18px;color:var(--muted);display:none;line-height:1.6}
.faq-item.open .faq-a{display:block}
.privacy-card{padding:20px;background:linear-gradient(180deg,#f8fefc,#ffffff)}
.privacy-card ul{margin:14px 0 0;padding-left:18px;color:#566581;line-height:1.8}
.tool-shell{padding:18px;background:#fff;border-radius:18px;border:1px solid #e6edf9;box-shadow:var(--shadow)}
.tool-shell h2{margin:0 0 16px;font-size:28px}
.field{display:grid;gap:8px;margin-bottom:14px}
.field label{font-weight:700;color:#445270}
.field textarea,.field input,.field select{width:100%;border:1px solid #d9e5fb;border-radius:14px;padding:14px 16px;outline:0;background:#fff;transition:border-color .2s}
.field textarea:focus,.field input:focus,.field select:focus{border-color:#8db1ff}
.field textarea{min-height:220px;resize:vertical}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.output{padding:16px;border-radius:14px;background:#f8fbff;border:1px solid #e6edf9;color:#4b5b79;line-height:1.7;white-space:pre-wrap;word-break:break-word}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:16px}
.metric{padding:16px;border-radius:16px;background:linear-gradient(180deg,#fff,#f6faff);border:1px solid #e5eefb;text-align:center}
.metric strong{display:block;font-size:28px;margin-bottom:4px}
.helper{color:#6c7894;font-size:14px;margin:8px 0 0}
.notice{padding:14px 16px;border-radius:14px;background:#eef7ff;border:1px solid #d4e6ff;color:#45607d;margin:14px 0}
.table-wrap{overflow:auto;border:1px solid #e5edf9;border-radius:14px}
table{width:100%;border-collapse:collapse;background:#fff}
th,td{padding:12px 14px;border-bottom:1px solid #eef3fb;text-align:left;font-size:14px}
th{background:#f8fbff;color:#52637f}
.copy-row{display:flex;gap:10px;flex-wrap:wrap}
.mobile-nav{display:none}
.muted{color:var(--muted)}
.hide-mobile{display:block}
.only-mobile{display:none}
@media (max-width: 1100px){
  .nav-links{display:none}
  .search{min-width:180px}
  .categories{grid-template-columns:repeat(3,1fr)}
  .popular-grid{grid-template-columns:repeat(2,1fr)}
  .features-row{grid-template-columns:repeat(2,1fr)}
  .how-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr 1fr}
  .tool-layout,.faq-grid{grid-template-columns:1fr}
  .related-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width: 760px){
  .container{padding:0 16px}
  .nav{min-height:70px}
  .search{display:none}
  .lang-switch{font-size:14px}
  .menu-btn{display:grid;place-items:center}
  .hero{padding-top:24px}
  .hero-inner{grid-template-columns:1fr}
  .hero h1{font-size:48px}
  .hero p{font-size:18px}
  .tools-grid{grid-template-columns:repeat(2,1fr)}
  .categories{grid-template-columns:repeat(2,1fr)}
  .popular-grid,.features-row,.metric-grid,.grid-2,.grid-3,.related-grid,.footer-grid{grid-template-columns:1fr}
  .page-head h1{font-size:36px}
  .tool-shell h2{font-size:24px}
  .mini-note{font-size:16px}
  .hide-mobile{display:none}
  .only-mobile{display:block}
  .footer{padding-bottom:90px}
  .mobile-nav{position:fixed;left:0;right:0;bottom:0;z-index:45;background:rgba(255,255,255,.95);backdrop-filter:blur(14px);border-top:1px solid #dfe9fa;display:grid;grid-template-columns:repeat(4,1fr);padding:10px 8px calc(10px + env(safe-area-inset-bottom));box-shadow:0 -10px 24px rgba(39,73,136,.06)}
  .mobile-nav a{display:grid;place-items:center;gap:4px;color:#667694;font-size:13px;padding:10px 6px;border-radius:14px;font-weight:700}
  .mobile-nav a.active{color:var(--primary);background:#edf3ff}
}

/* Version 2 additions */
.tool-directory{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.tool-card{padding:18px;display:flex;flex-direction:column;gap:14px;min-height:190px}
.tool-card-top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.tool-card h3{margin:0;font-size:20px}.tool-card p{margin:0;color:var(--muted);line-height:1.55;flex:1}
.tool-card .tag{display:inline-flex;align-items:center;align-self:flex-start;padding:6px 10px;border-radius:999px;background:#eef4ff;color:#4569b2;font-weight:700;font-size:12px}
.search-results{position:absolute;top:58px;left:0;right:0;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 18px 50px rgba(30,60,120,.16);padding:8px;max-height:420px;overflow:auto;display:none}
.search{position:relative}.search-results.open{display:block}
.search-result{display:flex;align-items:center;gap:12px;padding:12px;border-radius:12px}.search-result:hover{background:#f1f6ff}
.search-empty{padding:16px;color:var(--muted);text-align:center}
.page-content{max-width:900px;margin:0 auto;background:#fff;border:1px solid #e4ecf8;border-radius:24px;padding:34px;box-shadow:var(--shadow)}
.page-content h1{font-size:46px;margin:0 0 12px}.page-content h2{font-size:28px;margin:34px 0 12px}.page-content h3{font-size:21px;margin:24px 0 10px}.page-content p,.page-content li{color:#4f5f7e;line-height:1.8}.page-content ul,.page-content ol{padding-left:22px}
.article-meta{display:flex;gap:12px;flex-wrap:wrap;color:#7785a0;font-size:14px;margin-bottom:24px}
.callout{padding:18px;border-radius:16px;background:#eef7ff;border:1px solid #d9eaff;color:#425d7b;margin:18px 0;line-height:1.65}
.tool-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.file-drop{display:grid;place-items:center;text-align:center;border:2px dashed #9db8ec;border-radius:18px;padding:32px;background:#fbfdff;cursor:pointer;transition:.2s}.file-drop:hover,.file-drop.dragover{border-color:var(--primary);background:#f2f7ff}
.file-drop input{display:none}
.file-summary{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:14px 16px;border:1px solid #e5edf9;border-radius:14px;margin-top:12px;background:#fff}
.progress{height:12px;border-radius:999px;background:#e9eff9;overflow:hidden}.progress span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--primary),var(--primary-2));transition:width .2s}
.preview-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:16px}
.preview-item{border:1px solid #e5edf9;border-radius:16px;overflow:hidden;background:#fff}.preview-item img{width:100%;height:180px;object-fit:contain;background:#f8fbff}.preview-item .meta{padding:12px;color:#53627e;font-size:13px}
.canvas-wrap{display:grid;place-items:center;min-height:260px;border:1px solid #e4ecf8;border-radius:16px;background:#f9fbff;padding:16px;overflow:auto}.canvas-wrap canvas{max-width:100%;height:auto}
.inline-options{display:flex;gap:14px;flex-wrap:wrap;align-items:center}.inline-options label{display:flex;align-items:center;gap:8px;color:#4a5a78;font-weight:600}
.status{padding:12px 14px;border-radius:12px;background:#f4f8ff;color:#526583;border:1px solid #e0eafa;margin-top:14px}.status.success{background:#effcf7;color:#087f5b;border-color:#ccefe1}.status.error{background:#fff1f1;color:#b42318;border-color:#ffd6d6}
.timer{font-size:72px;font-weight:800;letter-spacing:-.04em;text-align:center;margin:24px 0}.timer-controls{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}
.todo-row{display:flex;align-items:center;gap:12px;padding:12px 0;border-bottom:1px solid #edf2fa}.todo-row.done span{text-decoration:line-through;color:#8b97ad}.todo-row .remove{margin-left:auto}
.stats-bar{display:flex;gap:14px;flex-wrap:wrap;margin-top:12px;color:#62718e;font-size:14px}
.download-link{display:inline-flex;align-items:center;gap:8px;margin-top:14px}
.tool-intro{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:18px;align-items:start}.tool-intro .side-card{position:sticky;top:98px}
.ad-placeholder{min-height:100px;border:1px dashed #ccd9ed;border-radius:14px;display:grid;place-items:center;color:#94a1b8;background:#fafcff;margin:18px 0}
@media(max-width:1000px){.tool-directory{grid-template-columns:repeat(2,1fr)}.tool-intro{grid-template-columns:1fr}.tool-intro .side-card{position:static}}
@media(max-width:760px){.tool-directory,.preview-grid{grid-template-columns:1fr}.page-content{padding:24px 18px;border-radius:18px}.page-content h1{font-size:36px}.timer{font-size:56px}.search-results{position:fixed;top:76px;left:16px;right:16px}.nav-actions .search.mobile-search-open{display:flex;position:fixed;top:76px;left:16px;right:16px;z-index:80}.tool-card{min-height:auto}}
.icon-productivity{background:#e9f7ff;color:#1479b8}.btn.secondary.primary{background:linear-gradient(135deg,var(--primary),#0956ff);border-color:transparent;color:#fff}
[data-content-lang="zh"]{display:none}
.mobile-menu-panel{display:none;position:fixed;top:70px;left:16px;right:16px;z-index:70;background:#fff;border:1px solid #dfe8f7;border-radius:18px;padding:12px;box-shadow:0 18px 45px rgba(30,60,120,.18)}
.mobile-menu-panel.open{display:grid;gap:6px}.mobile-menu-panel a{padding:14px 16px;border-radius:12px;font-weight:700;color:#405170}.mobile-menu-panel a:hover{background:#eef4ff;color:var(--primary)}
@media(min-width:761px){.mobile-menu-panel{display:none!important}}
/* Version 3 additions */
.color-result{display:flex;align-items:center;gap:18px;padding:18px;border:1px solid #e2ebf8;border-radius:16px;background:#fff;margin-bottom:16px}
.color-swatch{width:76px;height:76px;border-radius:18px;background:linear-gradient(135deg,#eef4ff,#d7e5ff);border:1px solid #d6e2f5;box-shadow:inset 0 0 0 5px #fff,0 8px 20px rgba(30,70,130,.08)}
.color-code{font-size:28px;font-weight:800;letter-spacing:.02em;margin:5px 0;color:var(--text)}
.clickable-canvas{cursor:crosshair;max-width:100%;height:auto;border-radius:12px}
.tool-shell output{color:var(--primary);font-weight:800}
@media(max-width:760px){.color-result{align-items:flex-start}.color-swatch{width:62px;height:62px}.color-code{font-size:23px}}
/* Version 4 tool details */
.diff-output{margin-top:18px;border:1px solid #e2eaf7;border-radius:16px;overflow:hidden;background:#fff}
.diff-line{display:grid;grid-template-columns:34px 1fr;gap:10px;padding:8px 12px;border-bottom:1px solid #edf2f9;font:14px/1.5 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.diff-line:last-child{border-bottom:0}.diff-line>span{text-align:center;font-weight:800}.diff-add{background:#effcf4;color:#17643b}.diff-remove{background:#fff2f2;color:#9a2b2b}.diff-same{background:#fbfdff;color:#52617b}
.markdown-preview{min-height:320px;padding:20px;border:1px solid #d9e5fb;border-radius:14px;background:#fff;overflow:auto;line-height:1.7}
.markdown-preview h1,.markdown-preview h2,.markdown-preview h3{margin-top:1.1em}.markdown-preview code{background:#eef3fa;padding:2px 6px;border-radius:5px}.markdown-preview blockquote{border-left:4px solid #a9c2f7;margin-left:0;padding-left:14px;color:#5d6b87}.markdown-preview a{color:var(--primary)}
select[multiple]{min-height:190px}.canvas-wrap{margin-top:16px;display:grid;place-items:center;min-height:120px;border:1px dashed #d7e3f6;border-radius:16px;padding:14px;background:#fbfdff}
.icon-productivity{background:#eef3ff;color:#3759b5}
@media (max-width:760px){.diff-line{grid-template-columns:24px 1fr;padding:8px}.markdown-preview{min-height:240px}.metric-grid{grid-template-columns:repeat(2,1fr)}}

/* Version 5 tools */
.palette-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin-top:16px}.palette-swatch{border:1px solid #e2eaf8;background:#fff;border-radius:16px;padding:10px;text-align:left;cursor:pointer;box-shadow:var(--shadow)}.palette-swatch span{display:block;height:76px;border-radius:12px;margin-bottom:9px;border:1px solid rgba(0,0,0,.08)}.palette-swatch strong,.palette-swatch small{display:block}.palette-swatch small{color:var(--muted);margin-top:4px}.favicon-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:12px;margin-top:16px}.favicon-card{border:1px solid #e3ebf8;border-radius:16px;padding:14px;background:#fff;display:grid;gap:10px;justify-items:center}.favicon-preview{height:92px;width:92px;display:grid;place-items:center;background:linear-gradient(45deg,#eef2f8 25%,transparent 25%),linear-gradient(-45deg,#eef2f8 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#eef2f8 75%),linear-gradient(-45deg,transparent 75%,#eef2f8 75%);background-size:16px 16px;background-position:0 0,0 8px,8px -8px,-8px 0;border-radius:12px;overflow:hidden}.favicon-preview canvas{max-width:80px;max-height:80px}.invoice-name,.invoice-qty,.invoice-price{min-width:90px;width:100%;border:1px solid #d9e5fb;border-radius:10px;padding:10px}.calendar-output{margin-top:18px}.print-calendar{background:#fff;border:1px solid #e1eaf8;border-radius:18px;padding:20px}.print-calendar h2{text-align:center;margin:0 0 16px}.calendar-grid{display:grid;grid-template-columns:repeat(7,1fr);border-top:1px solid #dfe8f5;border-left:1px solid #dfe8f5}.calendar-head,.calendar-day{border-right:1px solid #dfe8f5;border-bottom:1px solid #dfe8f5;padding:10px}.calendar-head{text-align:center;background:#f4f8ff}.calendar-day{min-height:105px}.calendar-day span{display:block;font-weight:800;margin-bottom:8px}.calendar-day div{height:60px;background:repeating-linear-gradient(to bottom,transparent 0,transparent 19px,#edf2fa 20px)}
@media(max-width:760px){.palette-grid,.favicon-grid{grid-template-columns:repeat(2,1fr)}.calendar-head,.calendar-day{padding:6px}.calendar-head{font-size:11px}.calendar-day{min-height:68px}.calendar-day div{height:34px}.invoice-name,.invoice-qty,.invoice-price{min-width:72px;padding:8px}}
@media print{body *{visibility:hidden}.print-calendar,.print-calendar *{visibility:visible}.print-calendar{position:absolute;inset:0;border:0;border-radius:0;padding:12mm}.calendar-day{min-height:34mm}.topbar,.footer{display:none}}

/* Version 6: batch tools, document previews, and 100-tool expansion */
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.output-large{max-height:430px;overflow:auto;min-height:160px}
.canvas-preview{margin-top:18px;border:1px solid #e3ebf8;border-radius:16px;background:#f8fbff;padding:14px;overflow:auto;text-align:center}
.canvas-preview canvas{max-width:100%;height:auto;box-shadow:var(--shadow);background:#fff}
.document-preview{margin-top:20px;border:1px solid #e2eaf8;border-radius:18px;background:#f7faff;padding:18px;overflow:auto}
.print-quote{background:#fff;max-width:900px;margin:auto;padding:28px;border-radius:16px;box-shadow:var(--shadow)}
.quote-head{display:flex;justify-content:space-between;gap:20px;align-items:flex-start;border-bottom:2px solid #dbe6fb;padding-bottom:18px;margin-bottom:18px}
.quote-head h2{margin:0 0 8px;font-size:28px}.quote-head p{margin:4px 0;color:var(--muted)}
.quote-totals{margin:18px 0 18px auto;max-width:330px;text-align:right}.quote-totals p{display:flex;justify-content:space-between;gap:20px;margin:8px 0}.quote-totals .grand{font-size:20px;border-top:1px solid #dfe7f4;padding-top:10px}
.signature-preview{min-height:190px;padding:24px;border:1px solid #e2eaf8;border-radius:16px;background:#fff;display:flex;align-items:center;overflow:auto}
@media (max-width:900px){.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.quote-head{flex-direction:column}}
@media (max-width:600px){.grid-4{grid-template-columns:1fr}.print-quote{padding:16px}.quote-head h2{font-size:22px}}
@media print{
  body *{visibility:hidden}
  .print-calendar,.print-calendar *,.print-quote,.print-quote *{visibility:visible}
  .print-calendar,.print-quote{position:absolute;left:0;top:0;width:100%;max-width:none;border:0;border-radius:0;box-shadow:none;padding:12mm}
  .calendar-day{min-height:34mm}
  .topbar,.footer{display:none}
}
.tool-intro>*{min-width:0}
.tool-shell,.side-card,.document-preview{min-width:0;max-width:100%}
.print-quote table{min-width:620px}

/* Version 10 tools */
.best-row{background:#ecfdf5}.best-row td{font-weight:700;color:#047857}.weekly-planner{background:#fff;border:1px solid #e5edf9;border-radius:18px;padding:18px}.weekly-planner h2{text-align:center;margin:0 0 16px}.planner-priorities{background:#f8fbff;border:1px solid #e5edf9;border-radius:14px;padding:14px;margin-bottom:14px}.planner-priorities ul{margin:8px 0 0;padding-left:20px}.planner-grid{display:grid;grid-template-columns:repeat(7,minmax(130px,1fr));gap:10px;overflow:auto}.planner-grid article{border:1px solid #dfe7f4;border-radius:14px;padding:10px;min-height:280px;background:#fff}.planner-grid article h3{font-size:14px;margin:0 0 8px}.planner-grid textarea{width:100%;height:225px;border:0;resize:vertical;outline:0;background:linear-gradient(#fff 31px,#eef3fb 32px);background-size:100% 32px;line-height:32px;padding:0 4px}.tool-shell pre.output{max-height:520px;overflow:auto}.tool-shell code{white-space:pre-wrap;word-break:break-word}
@media(max-width:760px){.planner-grid{grid-template-columns:repeat(7,240px)}}
@media print{body *{visibility:hidden}.weekly-planner,.weekly-planner *{visibility:visible}.weekly-planner{position:absolute;left:0;top:0;width:100%;border:0}.planner-grid{grid-template-columns:repeat(7,1fr);overflow:visible}.planner-grid article{min-height:600px}.planner-grid textarea{height:530px}.topbar,.footer,.side-card,.breadcrumbs,.page-head,.tool-shell>div:not(#planner-preview),.mobile-nav{display:none!important}}

/* Version 11 tools */
.canvas-preview{margin-top:18px;min-height:180px;padding:14px;border:1px solid #e3ecfa;border-radius:16px;background:#f8fbff;overflow:auto;text-align:center}.canvas-preview canvas{max-width:100%;height:auto;border-radius:10px}.design-preview{height:190px;border-radius:18px;margin:18px 0;border:1px solid #dfe8f7}.shadow-preview{width:min(320px,75%);height:180px;margin:38px auto;background:#fff;border-radius:20px;border:1px solid #edf2fa}.whitespace-output{white-space:pre-wrap}.ws-space{color:#2463eb;background:#eaf1ff}.ws-tab{color:#7c3aed;background:#f2ecff}.ws-newline{color:#059669;background:#e8fbf4}.ws-nbsp{color:#d97706;background:#fff4dd}.document-preview{margin-top:20px;padding:24px;border:1px solid #dfe7f4;border-radius:18px;background:#fff;overflow:auto}.print-receipt{max-width:720px;margin:auto}.receipt-meta,.receipt-totals p{display:flex;justify-content:space-between;gap:18px}.receipt-totals{max-width:340px;margin:18px 0 0 auto}.print-checklist{max-width:800px;margin:auto}.check-row{display:flex;align-items:center;gap:12px;padding:11px 0;border-bottom:1px solid #e6edf8}.check-box{display:inline-block;width:20px;height:20px;border:2px solid #334155;border-radius:4px;flex:0 0 auto}.check-notes{height:150px;margin-top:22px;padding:12px;border:1px solid #ccd8ea;border-radius:12px}@media print{body>*{display:none!important}.page-hero,.page-hero *{display:block!important}.topbar,.breadcrumbs,.page-head,.side-card,.tool-shell> :not(.document-preview),footer{display:none!important}.document-preview{border:0;padding:0}.print-receipt,.print-checklist{max-width:none}}

@media(max-width:600px){.metric-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.metric{min-width:0}.metric strong{font-size:22px;overflow-wrap:anywhere;word-break:break-word}}

/* Version 12: Excel, PDF compare, and printable documents */
.comparison-canvases{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:18px;overflow:auto}.comparison-canvases canvas{width:100%;height:auto;border:1px solid #dfe8f5;border-radius:12px;background:#fff}.document-preview .doc{max-width:900px;margin:auto}.document-preview .head{display:flex;justify-content:space-between;gap:24px}.document-preview .muted{white-space:pre-line}.document-preview .totals{max-width:360px;margin:22px 0 0 auto}.document-preview .totals p{display:flex;justify-content:space-between;gap:18px}.document-preview .notes{white-space:pre-line;margin-top:24px;padding:16px;border:1px solid #d9e5f5;border-radius:12px}.tool-shell select,.tool-shell input,.tool-shell textarea{max-width:100%}@media(max-width:760px){.comparison-canvases{grid-template-columns:1fr}.document-preview .head{flex-direction:column}.document-preview table{min-width:620px}.document-preview{padding:14px}.metric strong{overflow-wrap:anywhere;font-size:clamp(18px,6vw,28px)}}@media print{body>*{display:none!important}.page-hero,.page-hero *{display:block!important}.topbar,.breadcrumbs,.page-head,.side-card,.tool-shell> :not(.document-preview),footer{display:none!important}.document-preview{border:0;padding:0;box-shadow:none}.document-preview .doc{max-width:none}}

.timer-value{font-size:28px;font-weight:800;letter-spacing:.04em;margin-top:4px}.print-sheet{background:#fff;border:1px solid #e6edf9;border-radius:18px;padding:22px;margin-top:16px}.print-sheet table{min-width:680px}.print-expense table{width:100%;border-collapse:collapse}.print-expense th,.print-expense td{padding:10px;border-bottom:1px solid #e6edf9;text-align:left}@media print{body *{visibility:hidden}.print-sheet,.print-sheet *,.print-expense,.print-expense *{visibility:visible}.print-sheet,.print-expense{position:absolute;left:0;top:0;width:100%;border:0;box-shadow:none}.topbar,.footer,.side-card,.tool-actions{display:none!important}}@media(max-width:600px){.timer-value{font-size:23px}.file-row{min-width:0;overflow-wrap:anywhere}.print-sheet{padding:14px;overflow:auto}}

/* Version 14: revised header and local favorites */
.topbar>.container.nav{min-height:68px;flex-wrap:nowrap;gap:20px}
.topbar>.container.nav>.nav-links{flex-wrap:nowrap;overflow:hidden;min-width:0}
.category-strip{border-top:1px solid rgba(226,234,247,.9);background:rgba(250,252,255,.95)}
.category-strip-inner{min-height:50px;display:flex;align-items:center;justify-content:center;gap:6px}
.category-strip .nav-links{display:flex!important;align-items:center;justify-content:center;gap:4px;margin:0;flex-wrap:nowrap;min-width:0;overflow-x:auto;scrollbar-width:none}
.category-strip .nav-links::-webkit-scrollbar{display:none}
.category-strip .nav-link{white-space:nowrap;padding:8px 13px;border-radius:11px;font-size:15px}
.category-strip .nav-all-tools{display:flex;align-items:center;gap:8px;white-space:nowrap;padding:8px 13px;border-radius:11px;font-weight:700;color:var(--primary);background:#edf3ff}
.category-strip .nav-link:hover{background:#edf3ff;color:var(--primary)}
.favorites-nav-btn{height:44px;border:1px solid #d9e5f8;background:#fff;border-radius:13px;padding:0 12px;display:flex;align-items:center;gap:7px;color:#405274;font-weight:800;cursor:pointer;white-space:nowrap;box-shadow:0 3px 12px rgba(50,80,130,.05)}
.favorites-nav-btn:hover{border-color:#a9c3ff;color:var(--primary);background:#f7faff}
.favorite-heart{font-size:20px;line-height:1;color:#7182a3}
.favorites-nav-btn .favorite-heart{color:#ff5d78}
.favorite-count{min-width:22px;height:22px;padding:0 6px;border-radius:999px;background:#edf3ff;color:var(--primary);display:grid;place-items:center;font-size:12px}
.favorite-capable{position:relative;padding-right:52px!important}
.favorite-toggle{position:absolute;right:12px;top:12px;z-index:3;width:34px;height:34px;border-radius:11px;border:1px solid #dde7f6;background:rgba(255,255,255,.92);display:grid;place-items:center;cursor:pointer;box-shadow:0 5px 14px rgba(30,65,120,.08);transition:.18s ease}
.favorite-toggle:hover{transform:scale(1.06);border-color:#ff9bae;background:#fff4f6}
.favorite-toggle.active{background:#fff0f3;border-color:#ff9bae}
.favorite-toggle.active .favorite-heart{color:#ff4868}
.page-head{flex-wrap:wrap}
.page-favorite-button{margin-left:auto;min-height:46px;padding:0 17px;box-shadow:none}
.page-favorite-button.active{border-color:#ff9bae;color:#e53558;background:#fff2f5}
.favorites-section{scroll-margin-top:130px;padding-top:24px}
.favorites-heading{align-items:flex-end}
.favorites-heading h2{color:var(--text)}
.favorites-heading h2:first-letter{color:#ff4868}
.favorites-heading p{margin:7px 0 0;color:var(--muted)}
.clear-favorites-btn{min-height:44px;padding:0 18px;box-shadow:none}
.favorites-empty{border:1px dashed #cddcf3;border-radius:22px;background:linear-gradient(145deg,#fff,#f6f9ff);padding:34px 20px;text-align:center}
.favorites-empty[hidden]{display:none}
.favorites-empty-icon{width:62px;height:62px;border-radius:20px;background:#fff0f3;color:#ff5a76;display:grid;place-items:center;font-size:34px;margin:0 auto 14px}
.favorites-empty h3{margin:0 0 8px;font-size:21px}
.favorites-empty p{margin:0 auto 20px;color:var(--muted);max-width:520px}
.hero{padding-top:38px}
.hero-copy .helper{margin-top:16px;padding:13px 16px;border:1px solid #dfe9f8;border-radius:14px;background:rgba(255,255,255,.75);font-size:15px;line-height:1.55;max-width:660px}
@media(max-width:1100px){
  .category-strip .nav-links{display:flex!important}
  .category-strip-inner{justify-content:flex-start;overflow-x:auto}
  .search{min-width:200px;max-width:310px}
  .favorites-nav-label{display:none}
}
@media(max-width:760px){
  .category-strip{display:none}
  .topbar>.container.nav{min-height:68px;gap:10px}
  .favorites-nav-btn{width:42px;padding:0;justify-content:center;position:relative}
  .favorites-nav-btn .favorite-count{position:absolute;right:-5px;top:-5px;min-width:18px;height:18px;padding:0;font-size:10px}
  .favorites-heading{align-items:flex-start;flex-direction:column}
  .clear-favorites-btn{width:100%}
  .page-favorite-button{width:100%;margin-left:0}
  .favorite-capable{padding-right:48px!important}
}
@media(max-width:520px){
  .topbar .brand span{display:none}
  .topbar .brand svg{width:36px;height:36px}
  .lang-switch{font-size:13px;gap:5px}
}

.canvas-stage{margin-top:16px;padding:12px;border:1px solid #e3ebf8;border-radius:16px;background:#f8fbff;overflow:auto;text-align:center}.canvas-stage canvas{max-width:100%;height:auto;background:#fff;border-radius:10px;box-shadow:0 5px 18px rgba(40,70,120,.08);touch-action:none}.document-preview{margin-top:18px;padding:24px;background:#fff;border:1px solid #e2eaf7;border-radius:18px;overflow:auto}.document-preview article{max-width:900px;margin:auto}.document-preview table{width:100%;border-collapse:collapse}.document-preview th,.document-preview td{border:1px solid #dfe6f2}.timer-display{text-align:center;font-size:52px;font-weight:800;padding:24px;margin-bottom:16px;background:#f5f8ff;border:1px solid #e2eaf7;border-radius:18px}@media(max-width:760px){.document-preview{padding:14px}.timer-display{font-size:38px}.file-row input{min-width:0;max-width:100%}}