/* ToolKishop — clean, fast, mobile-first */
:root{
  --bg:#f4f6fb; --surface:#ffffff; --ink:#17203a; --muted:#5d6a84; --line:#e2e8f4;
  --brand:#2456e6; --brand-dark:#173fae; --brand-soft:#e8efff;
  --accent:#ffb020; --ok:#1c9e6c; --danger:#d64545;
  --radius:14px; --shadow:0 12px 32px rgba(23,32,58,.09); --max:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:"Segoe UI",system-ui,-apple-system,Roboto,"Helvetica Neue",Arial,sans-serif;
  line-height:1.62;-webkit-font-smoothing:antialiased}
img{max-width:100%}
a{color:var(--brand)}
.wrap{width:min(var(--max),calc(100% - 40px));margin:0 auto}
/* header */
.site-header{background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:16px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:800;font-size:1.25rem;letter-spacing:-.02em}
.logo-mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--brand),#6a8bff);
  display:grid;place-items:center;color:#fff;font-weight:900;font-size:1.1rem;box-shadow:var(--shadow)}
.main-nav{display:flex;gap:4px;flex-wrap:wrap}
.main-nav a{text-decoration:none;color:var(--muted);font-weight:600;font-size:.95rem;padding:8px 12px;border-radius:8px}
.main-nav a:hover,.main-nav a.active{background:var(--brand-soft);color:var(--brand)}
/* hero */
.hero{background:linear-gradient(120deg,#1b2a5e 0%,#2456e6 60%,#3f74ff 100%);color:#fff;
  padding:64px 0 56px;margin-bottom:0}
.hero h1{margin:0 0 12px;font-size:clamp(2rem,5vw,3.4rem);line-height:1.08;letter-spacing:-.03em}
.hero p.sub{margin:0 0 26px;max-width:640px;color:#dbe4ff;font-size:1.08rem}
.searchbar{display:flex;gap:0;max-width:560px;background:#fff;border-radius:12px;padding:6px;box-shadow:var(--shadow)}
.searchbar input{flex:1;border:0;outline:0;padding:12px 14px;font-size:1rem;background:transparent;color:var(--ink);min-width:0}
.searchbar button{border:0;background:var(--ink);color:#fff;font-weight:700;padding:12px 20px;border-radius:8px;cursor:pointer}
/* sections */
.section{padding:52px 0}
.section h2{font-size:clamp(1.5rem,3vw,2.1rem);letter-spacing:-.02em;margin:0 0 8px}
.section .lede{color:var(--muted);margin:0 0 26px;max-width:700px}
/* tool grid */
.tool-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.tool-card{display:flex;gap:14px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;text-decoration:none;color:var(--ink);transition:transform .15s ease,box-shadow .15s ease}
.tool-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#c4d2f7}
.tool-card .icon{font-size:1.7rem;line-height:1;flex:0 0 auto}
.tool-card h3{margin:0 0 4px;font-size:1.05rem;letter-spacing:-.01em}
.tool-card p{margin:0;color:var(--muted);font-size:.9rem}
.cat-row{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 22px}
.cat-btn{border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:8px 16px;
  font-size:.88rem;font-weight:600;cursor:pointer;color:var(--muted)}
.cat-btn.active,.cat-btn:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
/* breadcrumbs */
.crumbs{font-size:.85rem;color:var(--muted);padding:20px 0 0}
.crumbs a{color:var(--muted);text-decoration:none}.crumbs a:hover{text-decoration:underline}
/* tool page */
.tool-head{padding:10px 0 6px}
.tool-head h1{font-size:clamp(1.8rem,4vw,2.7rem);letter-spacing:-.025em;margin:.2em 0 .3em}
.tool-head .intro{color:var(--muted);max-width:720px;margin:0 0 8px;font-size:1.05rem}
.toolbox{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:28px;margin:22px 0;max-width:760px}
.field{margin-bottom:16px}
.field label{display:block;font-weight:700;font-size:.92rem;margin-bottom:6px}
.field small{color:var(--muted);font-weight:400}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
input[type=text],input[type=number],input[type=date],input[type=email],select,textarea{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-size:1rem;
  font-family:inherit;background:#fbfcff;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:2px solid var(--brand);outline-offset:1px;border-color:var(--brand)}
textarea{min-height:140px;resize:vertical}
.btn{display:inline-block;border:0;border-radius:10px;padding:13px 26px;font-size:1rem;font-weight:700;cursor:pointer}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark)}
.btn-ghost{background:var(--brand-soft);color:var(--brand)}
.btn-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:6px}
.result{background:#101a38;color:#fff;border-radius:12px;padding:20px 22px;margin-top:18px}
.result .lbl{font-size:.72rem;text-transform:uppercase;letter-spacing:.1em;opacity:.65}
.result .val{font-size:clamp(1.5rem,4vw,2.2rem);font-weight:800;letter-spacing:-.02em;margin-top:6px;overflow-wrap:anywhere}
.result .sub{opacity:.75;font-size:.92rem;margin-top:6px}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:14px}
.stat{background:var(--brand-soft);border-radius:10px;padding:14px;text-align:center}
.stat b{display:block;font-size:1.35rem;color:var(--brand-dark)}
.stat span{font-size:.75rem;color:var(--muted)}
input[type=range]{width:100%}
.check-row{display:flex;flex-wrap:wrap;gap:10px;margin:4px 0 14px}
.check-row label{display:flex;align-items:center;gap:7px;border:1px solid var(--line);border-radius:8px;
  padding:9px 12px;font-size:.9rem;cursor:pointer;background:#fbfcff}
.check-row input{width:auto;margin:0}
.tabs{display:flex;gap:8px;margin-bottom:18px;flex-wrap:wrap}
.tab{border:1px solid var(--line);background:#fbfcff;border-radius:999px;padding:8px 18px;font-weight:600;cursor:pointer}
.tab.active{background:var(--brand);color:#fff;border-color:var(--brand)}
.qr-out{display:grid;place-items:center;background:#fbfcff;border:1px dashed var(--line);border-radius:12px;
  padding:24px;margin-top:16px;min-height:220px}
/* content blocks */
.content{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px;margin:0 0 22px}
.content h2{font-size:1.4rem;margin:0 0 12px;letter-spacing:-.01em}
.content ol,.content ul{margin:0;padding-left:22px;color:#33405c}
.content li{margin-bottom:8px}
.faq details{border-bottom:1px solid var(--line);padding:14px 0}
.faq details:last-child{border-bottom:0}
.faq summary{font-weight:700;cursor:pointer;font-size:1.02rem}
.faq summary:hover{color:var(--brand)}
.faq .a{color:var(--muted);margin:10px 0 2px;max-width:70ch}
/* ad slots */
.adslot{border:1.5px dashed #c3cede;background:#f8fafd;border-radius:10px;color:#8b96ad;
  font-size:.78rem;text-align:center;padding:14px;margin:22px 0;letter-spacing:.06em;text-transform:uppercase}
.adslot.leader{min-height:96px;display:grid;place-items:center}
.adslot.box{min-height:250px;display:grid;place-items:center}
/* footer */
.site-footer{background:#101a38;color:#c6d2f2;margin-top:56px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px;padding:48px 0 30px}
.site-footer h4{color:#fff;margin:0 0 12px;font-size:1rem}
.site-footer a{color:#c6d2f2;text-decoration:none;font-size:.92rem}
.site-footer a:hover{color:#fff;text-decoration:underline}
.footer-links{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.footer-brand p{font-size:.9rem;color:#93a3cf;margin:10px 0 0;max-width:36ch}
.footer-bottom{border-top:1px solid #24315c;padding:18px 0;font-size:.82rem;color:#93a3cf;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
/* contact form */
.contact-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:start}
/* misc */
.note{background:#fff8e6;border:1px solid #f3dd9a;border-radius:10px;padding:14px 16px;font-size:.92rem;color:#6b5518;margin:16px 0}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:32px}
@media(max-width:900px){.tool-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}.contact-grid{grid-template-columns:1fr}.two-col{grid-template-columns:1fr}}
@media(max-width:600px){
  .wrap{width:calc(100% - 28px)}
  .tool-grid{grid-template-columns:1fr}
  .field-row{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:1fr 1fr}
  .hero{padding:44px 0 40px}
  .toolbox{padding:20px}
  .footer-grid{grid-template-columns:1fr}
  .main-nav a{padding:8px 8px;font-size:.88rem}
}