/* ===== UtilizeTools.com — design tokens ===== */
:root{
  --ink:#15181B;
  --paper:#F7F5F0;
  --paper-dim:#EDEAE2;
  --line:#DAD5C8;
  --signal:#FF5A1F;
  --signal-dim:#FFE3D4;
  --good:#1F7A4D;
  --mono-bg:#101316;
  --radius:14px;
  --max:1180px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,system-ui,Roboto,sans-serif;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,.display{
  font-family:"Segoe UI",-apple-system,system-ui,sans-serif;
  font-weight:700;
  letter-spacing:-0.02em;
  color:var(--ink);
  margin:0;
}
code,.mono,.tick-label,input,select{
  font-family:ui-monospace,"SF Mono","Cascadia Code","Roboto Mono",Menlo,Consolas,monospace;
}
a{color:var(--ink);text-decoration:none}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}

/* Tick-rule motif — measuring-tape divider, the site's signature element */
.tickline{
  width:100%;
  height:18px;
  background-image:repeating-linear-gradient(
    to right,
    var(--ink) 0,var(--ink) 1px,transparent 1px,transparent 24px
  );
  background-position:0 0;
  opacity:.18;
  margin:48px 0;
}
.tickline.major{
  height:28px;
  background-image:repeating-linear-gradient(
    to right,
    var(--signal) 0,var(--signal) 2px,transparent 2px,transparent 96px
  );
  opacity:.35;
}

/* Header */
header.site{
  position:sticky;top:0;z-index:40;
  background:rgba(247,245,240,.92);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;padding:18px 0}
.brand{font-size:22px;font-weight:700}
.brand span{color:var(--signal)}
.nav ul{display:flex;gap:28px;list-style:none;padding:0;margin:0;font-size:14px;font-weight:600}
.nav a:hover{color:var(--signal)}
.search-box{
  display:flex;align-items:center;gap:8px;
  border:1.5px solid var(--ink);border-radius:999px;
  padding:8px 16px;background:#fff;max-width:280px;
}
.search-box input{border:none;outline:none;background:transparent;font-size:13px;width:100%}

/* Hero */
.hero{padding:80px 0 40px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:var(--signal);margin-bottom:18px;
}
.hero h1{font-size:clamp(40px,7vw,76px);line-height:.98;margin-bottom:22px}
.hero p.lede{font-size:20px;max-width:640px;color:#3a3f44;margin-bottom:36px}

/* Cards */
.grid{display:grid;gap:20px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media (max-width:900px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.grid-3,.grid-4{grid-template-columns:1fr}}

.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;transition:transform .15s,border-color .15s,box-shadow .15s;
}
.card:hover{transform:translateY(-3px);border-color:var(--signal);box-shadow:0 10px 30px -12px rgba(0,0,0,.18)}
.card .cat{font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--signal)}
.card h3{font-size:19px;margin:8px 0 8px}
.card p{font-size:14px;color:#54595e;line-height:1.5;margin:0}
.card .go{margin-top:14px;font-size:13px;font-weight:700;color:var(--ink)}

/* Tool page */
.tool-panel{
  background:var(--mono-bg);color:#E7E9EA;border-radius:24px;
  padding:40px;margin:36px 0;border:1px solid #23272b;
}
.tool-panel label{display:block;font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:#9aa1a6;margin-bottom:6px}
.tool-panel input,.tool-panel select{
  width:100%;padding:12px 14px;border-radius:10px;border:1px solid #2c3034;
  background:#191c1f;color:#fff;font-size:15px;margin-bottom:18px;
}
.tool-panel input:focus,.tool-panel select:focus{outline:2px solid var(--signal)}
.result-box{
  background:#191c1f;border:1px solid #2c3034;border-radius:14px;padding:24px;margin-top:8px;
}
.result-box .big{font-size:38px;font-weight:700;color:var(--signal)}
.result-box .row{display:flex;justify-content:space-between;font-size:14px;padding:6px 0;border-top:1px solid #23272b}
.btn{
  display:inline-flex;align-items:center;gap:8px;background:var(--signal);color:#fff;
  border:none;padding:13px 26px;border-radius:999px;font-weight:700;cursor:pointer;font-size:14px;
}
.btn:hover{background:#e64a14}
.btn.secondary{background:transparent;border:1.5px solid #2c3034;color:#E7E9EA}

/* Content sections (3-part humanized content) */
.content-3{display:grid;grid-template-columns:repeat(3,1fr);gap:36px;padding-top:48px;border-top:1px solid var(--line)}
@media (max-width:900px){.content-3{grid-template-columns:1fr}}
.content-3 h2{font-size:18px;margin-bottom:14px}
.content-3 .panel{background:var(--paper-dim);border-radius:14px;padding:22px;font-size:14.5px;line-height:1.65}

/* Guide / keyword link grid */
.kw-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}
@media (max-width:900px){.kw-grid{grid-template-columns:repeat(2,1fr)}}
.kw-grid a{
  display:block;background:#fff;border:1px solid var(--line);border-radius:10px;
  padding:12px 14px;font-size:12.5px;font-weight:600;color:#3a3f44;
}
.kw-grid a:hover{border-color:var(--signal);color:var(--ink)}

/* Article (guide pages) */
article.guide{max-width:760px;margin:0 auto;padding:64px 0}
article.guide h1{font-size:clamp(32px,5vw,52px);margin-bottom:24px}
article.guide p{font-size:17px;line-height:1.75;color:#2c3034}
.cta-card{
  margin:40px 0;padding:36px;border-radius:24px;background:var(--ink);color:#fff;
}
.cta-card h2{color:#fff;margin-bottom:10px;font-size:24px}
.cta-card p{color:#cfd3d6}
.cta-card .btn{margin-top:14px;background:var(--signal);color:#fff}

/* Footer */
footer.site{border-top:1px solid var(--line);margin-top:80px;padding:60px 0 40px;background:var(--paper-dim)}
footer.site .grid-4{margin-bottom:40px}
footer.site h4{font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:#777;margin-bottom:14px}
footer.site a{display:block;font-size:13.5px;color:#3a3f44;margin-bottom:8px}
footer.site a:hover{color:var(--signal)}
footer .bottom{display:flex;justify-content:space-between;font-size:12px;color:#8a8f94;border-top:1px solid var(--line);padding-top:24px}

/* Breadcrumb */
.crumb{font-size:13px;color:#8a8f94;margin-bottom:20px;display:flex;gap:8px}
.crumb a{color:var(--signal);font-weight:600}

/* Skip link / focus */
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--signal);outline-offset:2px}
@media (prefers-reduced-motion: reduce){*{transition:none!important}}