:root{--ink:#131d33;--muted:#65718a;--line:#e4e9f2;--soft:#f5f7fc;--accent:#405de6;--accent-dark:#3049c6;--accent-soft:#eef0ff;--white:#fff;--content:1120px;color:var(--ink);background:white;font-synthesis:none;text-rendering:optimizeLegibility}body{color:var(--ink);background:#fff}.site-header{height:74px;border-bottom:1px solid #e9edf4;background:rgba(255,255,255,.9);backdrop-filter:blur(14px)}.header-inner{max-width:var(--content);padding:0 28px}.brand{font-size:20px;letter-spacing:-.8px}.brand-mark{width:31px;height:31px;border-radius:10px;background:linear-gradient(140deg,#526df0,#354cd1);box-shadow:0 5px 14px #405de638;font-size:18px}.primary-nav{gap:29px}.primary-nav a{font-size:13px;color:#59657d}.primary-nav a:hover,.primary-nav a[aria-current=true]{color:var(--accent)}.theme-toggle{display:inline-flex;align-items:center;gap:7px;background:#f3f5fa;color:#59657d;border:1px solid #e4e8f1;border-radius:9px;padding:8px 10px;font-size:11px;font-weight:700}.theme-toggle:hover{border-color:#bdc8eb;color:var(--accent)}.theme-toggle-icon{font-size:15px}.hero{position:relative;overflow:hidden;padding:79px 20px 72px;text-align:center;background:radial-gradient(ellipse 40% 43% at 50% 5%,#f0f2ff 0%,rgba(255,255,255,0) 100%)}.hero:before,.hero:after{content:"";position:absolute;border:1px solid rgba(79,102,222,.12);border-radius:50%;pointer-events:none;animation:orbit 18s linear infinite}.hero:before{width:190px;height:190px;top:53px;left:calc(50% - 375px)}.hero:after{width:94px;height:94px;right:calc(50% - 385px);top:80px;animation-direction:reverse;animation-duration:13s}.hero-content{max-width:700px;position:relative;z-index:1}.hero-symbol{height:36px;width:45px;margin:0 auto 21px;gap:4px}.hero-symbol span{width:10px;border-radius:5px;background:#bac5ff}.hero-symbol span:nth-child(2){background:var(--accent);animation:bar-pulse 2.6s ease-in-out infinite}.hero-symbol span:last-child{background:#8798f3}.hero h1{font:800 clamp(39px,5vw,58px)/1.1 system-ui,Segoe UI,sans-serif;letter-spacing:-2.6px;margin:0;color:#111a30}.hero>.hero-content>p{color:#65718a;font-size:16px;line-height:1.65;margin:17px 0 28px}.search-form{height:62px;max-width:615px;border:1px solid #dfe4ef;border-radius:14px;padding:0 16px;box-shadow:0 10px 30px #1d315b0d;transition:border-color .2s,box-shadow .2s,transform .2s}.search-form:hover{transform:translateY(-1px)}.search-form:focus-within{border-color:#8293ef;box-shadow:0 0 0 4px #405de619,0 10px 30px #1d315b0d}.search-form svg{stroke:#8290a9}.search-form input{font-size:14px}.search-form kbd{border:1px solid #e5e8f0;border-radius:6px;background:#fafbfe;padding:5px 7px;color:#8590a5;font:11px system-ui}.search-hint{margin:13px 0 0!important;font-size:12px!important;color:#8791a6!important}.section-wrap{max-width:var(--content);padding-left:28px;padding-right:28px}.popular{padding-top:11px;padding-bottom:68px}.section-heading{margin-bottom:23px}.section-kicker{font-size:10px;letter-spacing:1px;color:#8590a6}.section-heading h2{font:750 24px/1.25 system-ui,Segoe UI,sans-serif;letter-spacing:-.6px}.tool-count{font-size:12px;color:#747f95}.tool-grid{gap:13px}.tool-card{min-height:86px;border:1px solid var(--line);border-radius:13px;padding:15px 16px;box-shadow:0 2px 8px #18254a04;transition:transform .22s,border-color .22s,box-shadow .22s}.tool-card:hover{border-color:#c1cafa;transform:translateY(-3px);box-shadow:0 11px 24px #263d7b12}.tool-icon{width:39px;height:39px;border-radius:11px;background:var(--accent-soft);color:var(--accent)}.tool-card:nth-child(3n+2) .tool-icon{background:#eff6ff;color:#4776c4}.tool-card:nth-child(3n) .tool-icon{background:#f4f0ff;color:#7a5bc2}.tool-card strong{font-size:13px}.tool-card small{font-size:11px;color:#828da2}.tool-arrow{color:#a2abc0}.categories{padding-top:49px;padding-bottom:66px;border-top:1px solid #edf0f6}.category-grid{gap:13px}.category-link{border:1px solid var(--line);border-radius:13px;padding:16px 13px;transition:transform .2s,border-color .2s,box-shadow .2s}.category-link:hover{border-color:#c4cdf5;background:white;transform:translateY(-2px);box-shadow:0 8px 18px #263d7b0c}.pdf-icon{background:#fff0f1;color:#bf5261}.image-icon{background:#eff6ff;color:#4776c4}.calc-icon{background:#f1f0ff;color:#6a5fc0}.text-icon{background:#fff6e9;color:#a77c37}.category-link strong{font-size:12px}.category-link small{font-size:10px;color:#838ea2}.privacy-note{background:#f7f8fc;border-color:#eceff5}.privacy-inner{padding:20px 28px}.privacy-check{background:#eeefff;color:var(--accent)}.privacy-inner p{font-size:12px;color:#68748a}.privacy-inner p strong{color:#27344e}.privacy-inner>a{color:var(--accent)}.site-footer{max-width:var(--content);padding:31px 28px 18px}.footer-brand{font-size:18px}.footer-brand .brand-mark{width:27px;height:27px}.footer-main>p{color:#848ea2}.footer-main nav a,.footer-bottom{color:#7d879a}.footer-main nav a:hover{color:var(--accent)}.footer-bottom{border-color:#edf0f5}.theme-tool-shell{max-width:920px;margin:0 auto;padding:44px 24px 70px}.breadcrumbs{font-size:12px;color:#808ba1;margin:0 0 15px}.breadcrumbs a{color:var(--accent)}.tool-page-heading h1{font:750 clamp(30px,4vw,42px)/1.15 system-ui,sans-serif;letter-spacing:-1.4px;margin:0;color:#151e33}.tool-page-heading p{color:#69758b;font-size:15px;margin:11px 0 25px}.tool-workspace{background:white;border:1px solid #e1e6f0;border-radius:18px;padding:24px;box-shadow:0 12px 38px #1b2b5a0a}.tool-form{display:grid;gap:17px}.form-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.field{display:grid;gap:7px}.field label{font-size:12px;font-weight:700;color:#35425b}.field input,.field select,.field textarea{width:100%;min-height:44px;border:1px solid #dce2ed;border-radius:9px;padding:10px 12px;color:#1a253d;background:white;outline:0}.field textarea{min-height:115px;resize:vertical}.field input:focus,.field select:focus,.field textarea:focus{border-color:#8091eb;box-shadow:0 0 0 3px #405de617}.field small,.helper{font-size:11px;line-height:1.55;color:#78849a}.drop-zone{border:1.5px dashed #cbd3e5;border-radius:13px;padding:31px 20px;text-align:center;background:#fafbff;transition:background .2s,border-color .2s}.drop-zone.is-over{border-color:var(--accent);background:#f0f2ff}.drop-zone strong{display:block;font-size:14px}.drop-zone p{font-size:12px;color:#78849a;margin:7px 0 14px}.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:43px;border:1px solid transparent;border-radius:9px;padding:0 15px;background:linear-gradient(135deg,#526df0,#354ed2);color:white;font-size:12px;font-weight:700;box-shadow:0 5px 13px #405de626;transition:transform .2s,box-shadow .2s}.button:hover{transform:translateY(-1px);box-shadow:0 8px 17px #405de633}.button:disabled{opacity:.48;cursor:not-allowed;transform:none}.button.secondary{background:#f6f7fb;color:#35425b;border-color:#e1e5ee;box-shadow:none}.button.danger{background:#fff2f2;color:#b54848;border-color:#f3d8d8;box-shadow:none}.button-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}.file-list{display:grid;gap:8px;margin:14px 0}.file-item{display:flex;align-items:center;gap:12px;padding:11px 12px;border:1px solid #e6eaf1;border-radius:10px;background:#fff}.file-badge{display:grid;place-items:center;width:34px;height:34px;border-radius:9px;background:#eff1ff;color:#405de6;font-size:9px;font-weight:800;flex:none}.file-meta{flex:1;min-width:0}.file-meta strong,.file-meta small{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-meta strong{font-size:12px}.file-meta small{font-size:10px;color:#8290a3;margin-top:4px}.file-actions{display:flex;gap:5px}.icon-button{width:29px;height:29px;border:1px solid #e2e6ef;border-radius:7px;background:#fff;color:#67748a}.icon-button:hover{border-color:#aab5d3;color:#364bb7}.result-panel{margin-top:17px;padding:17px;border:1px solid #dfe6ff;border-radius:11px;background:#f6f7ff}.result-panel h2{font-size:14px;margin:0 0 10px}.result-value{font:750 26px/1.2 system-ui;color:#3049c6}.result-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.result-stat{padding:13px;border-radius:10px;background:#fff;border:1px solid #e8ebf2}.result-stat small{display:block;font-size:10px;color:#7d889d}.result-stat strong{display:block;font-size:16px;margin-top:5px}.status{min-height:20px;font-size:12px;color:#63718a}.status.error{color:#b44848}.status.success{color:#20775b}.tool-info{margin-top:28px}.tool-info h2{font:700 19px system-ui;margin:0 0 10px}.tool-info p,.tool-info li{color:#65718a;font-size:13px;line-height:1.7}.tool-info ol{padding-left:21px}.tool-info li{padding:3px 0}.privacy-inline{display:flex;gap:9px;align-items:center;padding:12px 14px;border-radius:10px;background:#f6f8ff;color:#586680;font-size:11px;margin-top:16px}.privacy-inline b{color:#263a81}.text-diff{display:grid;grid-template-columns:1fr 1fr;gap:12px}.diff-output{white-space:pre-wrap;font:12px/1.7 ui-monospace,Consolas,monospace}.diff-added{background:#e5f7ee;color:#176d44}.diff-removed{background:#fff0f0;color:#a73d3d;text-decoration:line-through}.image-preview{max-width:100%;max-height:420px;display:block;margin:15px auto;border-radius:8px}.download-list{display:grid;gap:9px}.download-row{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:10px 12px;border:1px solid #e5e9f1;border-radius:9px;font-size:12px}.site-footer a,.primary-nav a,.category-link,.tool-card{outline-offset:3px}@keyframes orbit{to{transform:rotate(360deg)}}@keyframes bar-pulse{0%,100%{transform:scaleY(.78)}50%{transform:scaleY(1.05)}}@media(max-width:780px){.primary-nav{gap:16px}.theme-toggle{padding:7px 8px}.tool-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.category-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:560px){.site-header{height:64px}.header-inner{padding:0 16px;gap:9px}.brand{font-size:18px}.primary-nav{top:63px;left:0;right:0;padding:11px 18px 17px;gap:0}.primary-nav a{padding:11px 4px}.theme-toggle{margin-left:auto;padding:7px 8px}.hero{padding:54px 19px 48px}.hero:before{left:-135px;top:80px}.hero:after{right:-36px;top:135px}.hero h1{font-size:39px;letter-spacing:-1.8px}.hero>.hero-content>p{font-size:14px}.search-form{height:56px}.section-wrap{padding-left:18px;padding-right:18px}.popular{padding-bottom:47px}.tool-grid,.category-grid{grid-template-columns:1fr}.categories{padding-top:37px;padding-bottom:42px}.privacy-inner{padding:17px 18px}.privacy-inner>a{margin-left:37px}.site-footer{padding-left:18px;padding-right:18px}.footer-main{grid-template-columns:1fr}.footer-main nav{grid-column:1;grid-row:auto;flex-wrap:wrap;gap:14px 18px;margin-top:8px}.footer-bottom{gap:10px}.theme-tool-shell{padding:31px 17px 52px}.tool-page-heading p{font-size:14px}.tool-workspace{padding:16px;border-radius:14px}.form-row,.text-diff{grid-template-columns:1fr}.result-grid{grid-template-columns:1fr 1fr}.drop-zone{padding:26px 13px}}@media(prefers-reduced-motion:reduce){*,*::before,*:after{scroll-behavior:auto!important;animation:none!important;transition:none!important}}



/* Theme 2 visual refinement */
.section-wrap{max-width:1240px}
.hero{display:grid;grid-template-columns:minmax(0,1.04fr) minmax(390px,.96fr);gap:12px;align-items:center;max-width:none;min-height:470px;margin:0;padding:58px max(34px,calc((100vw - 1240px)/2)) 52px;text-align:left;background:radial-gradient(ellipse 38% 65% at 76% 48%,#e8edff 0%,rgba(255,255,255,0) 100%),linear-gradient(110deg,#fbfdff 0%,#fff 52%,#f6f8ff 100%)}
.hero:before,.hero:after{display:none}
.hero-content{max-width:650px;margin:0;z-index:2}
.hero h1{font-size:clamp(47px,5vw,70px);line-height:1.04;letter-spacing:-3.4px}
.hero>.hero-content>p{max-width:550px;font-size:17px;margin:20px 0 27px}
.search-form{margin:0;max-width:585px;height:65px;border-radius:15px}
.search-form input{font-size:15px}
.hero-art{position:relative;isolation:isolate;display:grid;place-items:center;width:min(100%,610px);aspect-ratio:1.2;margin:0;justify-self:end}
.hero-art:before{content:"";position:absolute;inset:10% 5%;z-index:-1;border-radius:50%;background:radial-gradient(ellipse,#dbe4ffb3 0%,#eff3ff80 46%,transparent 72%);filter:blur(10px)}
.hero-art img{display:block;width:114%;max-width:none;max-height:465px;object-fit:contain;filter:drop-shadow(0 26px 28px #263d7b26);animation:none}
.popular{max-width:1280px;padding:36px 32px 76px}
.section-heading{margin-bottom:25px}
.section-heading h2{font-size:29px;letter-spacing:-.9px}
.section-kicker{font-size:11px;letter-spacing:1px}
.tool-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.tool-card{min-height:104px;padding:17px;border-radius:15px;background:linear-gradient(145deg,#fff 0%,#fbfcff 100%);box-shadow:0 4px 15px #1d315b08}
.tool-card:hover,.tool-card:focus-visible{box-shadow:0 14px 28px #263d7b15;transform:translateY(-4px)}
.tool-icon{width:46px;height:46px;border-radius:13px}
.tool-icon svg{width:22px;height:22px}
.tool-card strong{font-size:14px;line-height:1.35}
.tool-card small{font-size:12px;line-height:1.4;white-space:normal}
.categories{padding:56px max(32px,calc((100vw - 1240px)/2)) 68px;background:linear-gradient(180deg,#fff 0%,#f8faff 100%)}
.category-grid{gap:15px}
.category-link{min-height:86px;padding:17px 15px;border-radius:14px;background:#fff;box-shadow:0 3px 12px #1d315b06}
.category-icon{width:44px;height:44px;border-radius:13px;font-size:10px}
.category-link strong{font-size:13px}
.category-link small{font-size:11px;white-space:normal;line-height:1.35}
.privacy-note{background:#eff4ff;border:0}
.privacy-inner{padding:22px 28px}
.privacy-check{width:31px;height:31px;background:#fff;color:#405de6;font-size:16px}
.site-footer{padding-top:37px;padding-bottom:24px}
@keyframes hero-drift{0%,100%{transform:translateY(0) rotate(0deg)}50%{transform:translateY(-11px) rotate(.6deg)}}
@media(max-width:1050px){.hero{grid-template-columns:minmax(0,1fr) minmax(310px,.85fr);padding-left:32px;padding-right:32px}.hero h1{font-size:clamp(43px,5vw,58px);letter-spacing:-2.7px}.hero-art img{width:120%}.tool-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:780px){.hero{min-height:0;grid-template-columns:minmax(0,1fr) minmax(250px,.8fr);gap:4px;padding-top:52px;padding-bottom:42px}.hero h1{font-size:clamp(40px,6vw,53px)}.hero-art img{width:130%}.popular{padding:30px 24px 58px}.tool-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.categories{padding-left:24px;padding-right:24px}}
@media(max-width:620px){.hero{display:flex;flex-direction:column;align-items:stretch;padding:47px 20px 23px;gap:0}.hero-content{width:100%}.hero h1{font-size:42px;line-height:1.08;letter-spacing:-2px}.hero>.hero-content>p{font-size:15px;margin:15px 0 23px}.search-form{height:58px}.hero-art{width:min(100%,400px);aspect-ratio:1.45;align-self:center;margin:-1px auto 0}.hero-art img{width:105%;max-height:285px}.popular{padding:28px 18px 48px}.section-heading h2{font-size:25px}.tool-grid{grid-template-columns:1fr;gap:10px}.tool-card{min-height:82px;padding:13px 14px}.tool-icon{width:42px;height:42px}.categories{padding:40px 18px 48px}.category-grid{grid-template-columns:1fr;gap:10px}.category-link{min-height:75px}.privacy-inner{padding:17px 18px}.site-footer{padding-left:18px;padding-right:18px}}
@media(prefers-reduced-motion:reduce){.hero-art img{animation:none}}
.search-submit{width:42px;height:42px;display:grid;place-items:center;border:0;border-radius:12px;background:linear-gradient(135deg,#3765f5,#1646e5);color:#fff;box-shadow:0 7px 16px #315ce53a;transition:transform .2s,box-shadow .2s;flex:none}
.search-submit:hover{transform:translateY(-1px);box-shadow:0 10px 20px #315ce54a}
.search-submit svg{width:19px;height:19px;stroke:#fff;stroke-width:2;fill:none}
.tool-grid{grid-template-columns:repeat(5,minmax(0,1fr))}
@media(max-width:1050px){.tool-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(max-width:780px){.tool-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}

@media(max-width:620px){.tool-grid{grid-template-columns:1fr}}