:root{
  --ink:#0F1E2E; --navy:#0B3B5E; --navy2:#0E5A8A; --accent:#0E9F6E; --accent-d:#0B7A55;
  --amber:#E8930C; --bg:#F7FAFC; --card:#FFFFFF; --line:#E2EAF1; --muted:#5A7186; --error:#C0392B;
  --radius:14px; --shadow:0 8px 30px rgba(11,59,94,.08);
}
*{box-sizing:border-box} html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.65;font-size:16.5px}
h1,h2,h3,.display{font-family:Sora,"Inter",-apple-system,"Segoe UI",sans-serif;letter-spacing:-.01em}
a{color:var(--navy2);text-decoration:none} a:hover{text-decoration:underline}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
/* header */
header.site{position:sticky;top:0;z-index:50;background:linear-gradient(90deg,var(--navy),var(--navy2));color:#fff;box-shadow:0 2px 12px rgba(11,59,94,.25)}
header.site .wrap{display:flex;align-items:center;gap:22px;height:62px}
.logo{font-family:Sora,sans-serif;font-weight:700;font-size:23px;color:#fff;display:flex;align-items:center;gap:9px}
.logo:hover{text-decoration:none}
.logo .mark{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:9px;background:var(--accent);color:#fff;font-size:17px;font-weight:800}
.logo em{font-style:normal;color:#35D79A}
nav.main{margin-left:8px;display:flex;gap:19px;font-size:15px}
nav.main a{color:#DCEBF5} nav.main a:hover{color:#fff;text-decoration:none}
.hdrsearch{margin-left:auto;flex:none;width:42px;height:42px;border-radius:9px;border:1px solid rgba(255,255,255,.25);background:rgba(255,255,255,.10);color:#DCEBF5;display:flex;align-items:center;justify-content:center;cursor:pointer}
.hdrsearch:hover{background:rgba(255,255,255,.22);color:#fff}
.hdrsearch svg{width:20px;height:20px}
.navtoggle{display:none;margin-left:10px;flex:none;width:42px;height:42px;border-radius:9px;border:1px solid rgba(255,255,255,.25);background:rgba(255,255,255,.10);color:#fff;align-items:center;justify-content:center;cursor:pointer}
.navtoggle svg{width:22px;height:22px}
@media(max-width:760px){
.navtoggle{display:flex}
nav.main{display:none;position:absolute;top:62px;left:0;right:0;flex-direction:column;gap:0;background:linear-gradient(135deg,var(--navy),var(--navy2));padding:8px 20px 14px;box-shadow:0 18px 30px rgba(11,59,94,.30);z-index:49}
nav.main.open{display:flex}
nav.main a{padding:11px 2px;border-bottom:1px solid rgba(255,255,255,.13);font-size:16px}
nav.main a:last-child{border-bottom:0}}
/* hero */
.hero{background:linear-gradient(135deg,var(--navy) 0%,var(--navy2) 100%);color:#fff;padding:56px 0 46px}
.hero .eyebrow{font-size:13px;letter-spacing:.18em;font-weight:700;color:#35D79A;text-transform:uppercase}
.hero h1{font-size:40px;line-height:1.18;margin:12px 0 12px;max-width:720px}
.hero p.sub{color:#CFE3F0;font-size:18px;max-width:640px;margin:0 0 24px}
.searchbox{max-width:620px;background:#fff;border-radius:12px;padding:6px;display:flex;gap:6px;box-shadow:0 12px 32px rgba(0,0,0,.22)}
.searchbox input{flex:1;border:0;outline:0;font-size:17px;padding:10px 12px;color:var(--ink);min-width:0}
.searchbox span{display:flex;align-items:center;padding:0 10px;color:var(--muted)}
.searchbox span svg{width:21px;height:21px}
.herogrid{display:grid;grid-template-columns:1.12fr .88fr;gap:44px;align-items:center}
.proofstack{display:flex;flex-direction:column;gap:14px}
.proofcard{background:#fff;color:var(--ink);border-radius:14px;padding:16px 18px;box-shadow:0 16px 38px rgba(0,0,0,.25);display:block;width:94%;transition:transform .15s ease}
.proofcard:hover{text-decoration:none}
.proofcard.pc1{transform:rotate(-1.4deg)}
.proofcard.pc2{transform:rotate(1.1deg);margin-left:auto}
.proofcard.pc3{transform:rotate(-.7deg)}
.proofcard.pc1:hover,.proofcard.pc2:hover,.proofcard.pc3:hover{transform:translateY(-2px)}
.proofcard .pc-top{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:12.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase}
.proofcard .pc-top .ic{width:31px;height:31px;border-radius:9px;display:flex;align-items:center;justify-content:center;flex:none}
.proofcard .pc-top .ic svg{width:18px;height:18px}
.proofcard .pc-big{font-family:Sora,sans-serif;font-size:27px;font-weight:800;color:var(--navy);margin:7px 0 2px;line-height:1.15;font-variant-numeric:tabular-nums}
.proofcard .pc-sub{color:var(--muted);font-size:14px;margin:0}
@media(max-width:899px){.herogrid{grid-template-columns:1fr}.proofstack{margin-top:30px}.proofcard{width:100%}}
.chips{margin-top:16px;display:flex;flex-wrap:wrap;gap:8px}
.chips a{background:rgba(255,255,255,.13);color:#EAF4FB;padding:6px 13px;border-radius:99px;font-size:14px;border:1px solid rgba(255,255,255,.22)}
.chips a:hover{background:rgba(255,255,255,.25);text-decoration:none}
.truststrip{background:#fff;border-bottom:1px solid var(--line)}
.truststrip .wrap{display:flex;flex-wrap:wrap;gap:8px 34px;padding:13px 20px;font-size:14.5px;color:var(--muted)}
.truststrip b{color:var(--ink)}
/* sections + cards */
section.block{padding:36px 0 6px}
section.block h2{font-size:27px;margin:0 0 6px}
section.block .lede{color:var(--muted);margin:0 0 20px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(248px,1fr));gap:16px}
.toolcard{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);display:block;color:var(--ink);transition:transform .15s ease,border-color .15s ease,box-shadow .15s ease}
.toolcard:hover{text-decoration:none;border-color:#BFD6E6;transform:translateY(-2px);box-shadow:0 14px 34px rgba(11,59,94,.13)}
.toolcard .ic{width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:24px}
.toolcard .ic svg{width:25px;height:25px}
.cat-finance .ic{background:#E3EEF7;color:#0E5A8A}
.cat-math .ic{background:#EFEBFA;color:#6C4BD8}
.cat-date-time .ic{background:#FDF0DC;color:#B96E04}
.cat-health .ic{background:#E2F4EC;color:#0B7A55}
.cat-text-utility .ic{background:#E6F2F2;color:#0F766E}
.toolcard h3{margin:10px 0 5px;font-size:18px}
.toolcard p{margin:0;color:var(--muted);font-size:14.5px}
.toolcard .cat{font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--accent-d);margin-top:12px}
.popgrid{grid-template-columns:repeat(auto-fill,minmax(330px,1fr))}
.toolcard.popcard{display:flex;gap:14px;align-items:flex-start;border-left:4px solid var(--accent)}
.toolcard.popcard h3{margin:3px 0 5px}
.toolcard.popcard .cat{margin-top:1px}
.popcard .rank{font-family:Sora,sans-serif;font-weight:800;font-size:17px;color:#fff;background:var(--navy2);width:30px;height:30px;border-radius:9px;display:flex;align-items:center;justify-content:center;flex:none;margin-top:2px}
.popcard .ic{flex:none}
.catband{display:flex;flex-wrap:wrap;gap:10px}
.catband a{background:#fff;border:1px solid var(--line);border-radius:99px;padding:9px 17px;font-weight:600;color:var(--navy);box-shadow:var(--shadow);display:inline-flex;align-items:center;gap:9px}
.catband a:hover{text-decoration:none;border-color:var(--navy2)}
.catband .cbic{display:inline-flex;color:var(--accent-d)}
.catband .cbic svg{width:19px;height:19px}
.trustrow{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:0 0 18px;max-width:760px}
@media(max-width:760px){.trustrow{grid-template-columns:1fr}}
.trustcard{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:15px 17px;box-shadow:var(--shadow);display:flex;gap:13px;align-items:center}
.trustcard .ic{width:42px;height:42px;border-radius:11px;background:#E7F6EF;color:var(--accent-d);display:flex;align-items:center;justify-content:center;flex:none}
.trustcard .ic svg{width:23px;height:23px}
.trustcard b{font-family:Sora,sans-serif;font-size:16.5px}
/* tool page */
.crumbs{font-size:14px;color:var(--muted);padding:20px 0 0}
.crumbs a{color:var(--muted)}
.pill{display:inline-block;background:#E7F6EF;color:var(--accent-d);font-weight:700;font-size:12.5px;padding:4px 11px;border-radius:99px;letter-spacing:.06em;text-transform:uppercase}
main.toolpage h1{font-size:34px;margin:12px 0 6px}
.promise{color:var(--muted);font-size:17.5px;margin:0 0 4px}
.metarow{font-size:13.5px;color:var(--muted);margin-bottom:20px}
.toolcard-big{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px;margin-bottom:26px}
.toolgrid{display:grid;grid-template-columns:5fr 7fr;gap:24px}
@media(max-width:820px){.toolgrid{grid-template-columns:1fr}}
label.f{display:block;font-size:14px;font-weight:600;margin:0 0 5px;color:var(--ink)}
.field{margin-bottom:14px}
input[type=number],input[type=date],input[type=text],select,textarea{width:100%;padding:12px;border:1px solid #C9D8E4;border-radius:10px;font-size:16.5px;background:#fff;color:var(--ink);min-height:48px}
textarea{min-height:150px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:2px solid var(--navy2);border-color:transparent}
.btn{display:inline-block;background:var(--accent);color:#fff;border:0;border-radius:10px;padding:13px 22px;font-size:16.5px;font-weight:700;cursor:pointer;width:100%}
.btn:hover{background:var(--accent-d)}
.btn.secondary{background:#EAF1F7;color:var(--navy);width:auto;padding:9px 16px;font-size:14.5px}
.resultbox{background:#F0F8F4;border:1px solid #CBE8D9;border-radius:12px;padding:18px}
.resultbox .big{font-size:38px;font-weight:800;font-family:Sora,sans-serif;color:var(--navy);line-height:1.15;font-variant-numeric:tabular-nums}
.resultbox .lbl{font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent-d)}
table.data{width:100%;border-collapse:collapse;margin:12px 0;font-size:15.5px}
table.data th,table.data td{border-bottom:1px solid var(--line);padding:8px 10px;text-align:left}
table.data th{color:var(--muted);font-size:13px;text-transform:uppercase;letter-spacing:.06em}
table.data td.num{text-align:right;font-variant-numeric:tabular-nums}
.formulabox{background:#EFF5FA;border:1px solid #CFE0ED;border-radius:12px;padding:16px 18px;font-size:17px;overflow-x:auto}
.formulabox code{font-family:ui-monospace,Menlo,Consolas,monospace}
article.content{max-width:760px}
article.content h2{font-size:25px;margin:30px 0 8px}
article.content h3{font-size:19px;margin:22px 0 6px}
details.faq{background:#fff;border:1px solid var(--line);border-radius:10px;padding:13px 16px;margin-bottom:10px}
details.faq summary{font-weight:700;cursor:pointer;font-size:16.5px}
details.faq p{margin:8px 0 2px;color:#33485C}
.note{background:#FFF7E8;border:1px solid #F0DCB2;border-radius:10px;padding:13px 16px;font-size:15px}
.gauge{position:relative;height:16px;border-radius:99px;background:linear-gradient(90deg,#5B8DEF 0 18.5%,#0E9F6E 18.5% 25%,#F5A623 25% 30%,#C0392B 30% 100%);margin:12px 0 4px}
.gauge .marker{position:absolute;top:-5px;width:4px;height:26px;background:var(--ink);border-radius:2px}
.bar-row{display:flex;align-items:center;gap:10px;margin:5px 0;font-size:14.5px}
.bar-row .bar{height:14px;border-radius:4px;background:var(--navy2)}
.bar-row .bar.acc{background:var(--accent)}
.stackbar{display:flex;height:22px;border-radius:6px;overflow:hidden;margin:10px 0}
.stackbar div{height:100%}
.barlbl{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--muted);margin-top:2px}
.barlbl i{display:inline-block;width:9px;height:9px;border-radius:3px;margin-right:5px}
.resultactions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px;border-top:1px solid var(--line);padding-top:16px}
.resultactions .btn.secondary{display:inline-flex;align-items:center;gap:8px;cursor:pointer}
.resultactions .btn.secondary svg{width:16px;height:16px}
footer.site{margin-top:52px;background:var(--navy);color:#CFE3F0;padding:36px 0 28px}
footer.site .cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:24px}
footer.site h4{color:#fff;margin:0 0 10px;font-size:16px}
footer.site a{color:#CFE3F0;display:block;padding:3px 0;font-size:15px}
footer.site .fine{border-top:1px solid rgba(255,255,255,.18);margin-top:24px;padding-top:16px;font-size:13.5px;color:#9DBBD2}
.stickybar{display:none}
@media(max-width:820px){.stickybar{display:flex;position:fixed;bottom:0;left:0;right:0;background:#fff;border-top:1px solid var(--line);box-shadow:0 -4px 18px rgba(11,59,94,.12);z-index:60}
.stickybar button{flex:1;background:none;border:0;padding:13px 4px;font-size:14.5px;font-weight:700;color:var(--navy);cursor:pointer}
.stickybar button svg{width:16px;height:16px;vertical-align:-3px;margin-right:5px}
body{padding-bottom:52px}}
.hidden{display:none!important}
.small{font-size:14px;color:var(--muted)}
.error{color:var(--error);font-size:14.5px;font-weight:600}