/* TraceCub — core stylesheet */

/* ---------- base ---------- */
:root{
  --paper:#FAF7F0;
  --card:#FFFFFF;
  --ink:#1F2A37;
  --muted:#5C6B7E;
  --faint:#8A97A6;
  --line:#E7E0D2;
  --line2:#D9D2C2;
  --blue:#2E51C9;
  --blue-d:#2643A6;
  --blue-t:#EEF1FC;
  --yellow:#F5A623;
  --yellow-t:#FFF4DE;
  --radius:16px;
  --shadow-s:0 1px 2px rgba(31,42,55,.06);
  --shadow-m:0 2px 6px rgba(31,42,55,.06),0 12px 32px rgba(31,42,55,.09);
  --maxw:1080px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'Nunito',-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
  font-size:17px;
  line-height:1.6;
}
img,svg{display:block;max-width:100%}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{line-height:1.25;margin:0 0 .5em}
h1{font-size:clamp(30px,4.6vw,46px);font-weight:800;letter-spacing:-.01em}
h2{font-size:clamp(22px,2.6vw,30px);font-weight:800}
h3{font-size:19px;font-weight:800}
p{margin:0 0 1em}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.muted{color:var(--muted)}
.center{text-align:center}

/* ---------- header ---------- */
.hdr{background:var(--paper);border-bottom:1px solid var(--line)}
.hdr-in{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:15px 0}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:21px;color:var(--ink)}
.brand:hover{text-decoration:none}
.brand .bm{width:34px;height:34px;flex:0 0 auto}
.brand .tm2{color:var(--blue)}
.nav{display:flex;gap:4px;flex-wrap:wrap}
.nav a{color:var(--muted);font-weight:700;font-size:15.5px;padding:8px 12px;border-radius:10px}
.nav a:hover{background:var(--blue-t);color:var(--blue);text-decoration:none}
.nav a[aria-current="page"]{color:var(--blue);background:var(--blue-t)}

/* ---------- hero ---------- */
.hero{padding:44px 0 8px}
.hero .kicker{display:inline-block;background:var(--yellow-t);color:#8A5A00;border:1px solid #F2DEB4;font-weight:800;font-size:13.5px;letter-spacing:.04em;text-transform:uppercase;padding:5px 12px;border-radius:999px;margin-bottom:14px}
.hero p.lede{font-size:19.5px;color:var(--muted);max-width:640px}
.hero.center .lede{margin-left:auto;margin-right:auto}
.trust{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin:10px 0 0;padding:0;list-style:none;color:var(--muted);font-weight:700;font-size:14.5px}
.trust li::before{content:"✓ ";color:var(--blue);font-weight:800}

/* ---------- tool ---------- */
.tool{margin:30px auto 10px}
.toolcard{
  display:grid;grid-template-columns:380px 1fr;gap:26px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-m);padding:26px;
}
@media (max-width:940px){.toolcard{grid-template-columns:1fr}}
.ctl label,.ctl .lab{display:block;font-weight:800;font-size:14.5px;margin:0 0 7px;color:var(--ink)}
.ctl .field{margin-bottom:18px}
.ctl input[type=text]{
  width:100%;font:inherit;font-weight:700;font-size:19px;color:var(--ink);
  padding:12px 14px;border:1.5px solid var(--line2);border-radius:12px;background:#FFFDF9;outline:none;
}
.ctl input[type=text]:focus{border-color:var(--blue);box-shadow:0 0 0 4px var(--blue-t)}
.seg{display:flex;gap:8px}
.seg button{
  flex:1;font:inherit;font-weight:700;font-size:15px;color:var(--muted);
  background:#FFFDF9;border:1.5px solid var(--line2);border-radius:12px;padding:11px 8px;cursor:pointer;line-height:1.25;
}
.seg button:hover{border-color:var(--blue);color:var(--blue)}
.seg button.on{background:var(--blue-t);border-color:var(--blue);color:var(--blue)}
.seg button small{display:block;font-size:12px;font-weight:600;color:var(--faint)}
.seg button.on small{color:var(--blue)}
.ctl select{
  width:100%;font:inherit;font-weight:700;font-size:15.5px;color:var(--ink);
  padding:11px 12px;border:1.5px solid var(--line2);border-radius:12px;background:#FFFDF9;outline:none;
}
.ctl select:focus{border-color:var(--blue);box-shadow:0 0 0 4px var(--blue-t)}
.stepper{display:flex;align-items:center;gap:10px}
.stepper button{
  width:44px;height:44px;font-size:22px;font-weight:800;color:var(--blue);
  background:var(--blue-t);border:1.5px solid #C9D4F2;border-radius:12px;cursor:pointer;line-height:1;
}
.stepper button:disabled{opacity:.35;cursor:default}
.stepper .val{min-width:36px;text-align:center;font-size:20px;font-weight:800}
.btn{
  display:block;width:100%;text-align:center;font:inherit;font-weight:800;font-size:18px;
  color:#fff;background:var(--blue);border:none;border-radius:14px;padding:15px 20px;cursor:pointer;
  box-shadow:var(--shadow-s);
}
.btn:hover{background:var(--blue-d)}
.btn:active{transform:translateY(1px)}
.tip{font-size:13.5px;color:var(--faint);margin:10px 0 0;text-align:center}
.mini-note{font-size:13px;color:var(--faint);margin:8px 0 0}

/* ---------- preview / sheet ---------- */
.preview{display:flex;flex-direction:column;align-items:center;gap:10px}
.sheetwrap{width:100%;max-width:520px}
.sheet{
  background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;
  box-shadow:0 10px 30px rgba(31,42,55,.12);
  aspect-ratio:816/1056;
}
.sheet svg{width:100%;height:100%}
.sheetlabel{font-size:13px;color:var(--faint);font-weight:700;letter-spacing:.03em;text-transform:uppercase}

/* ---------- content sections ---------- */
.section{padding:44px 0 6px}
.section.tight{padding:30px 0 0}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:22px 0 8px}
@media (max-width:880px){.grid3{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-s)}
.card h3{margin-bottom:6px}
.card p{margin:0;color:var(--muted);font-size:15.5px}
.stepno{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:9px;background:var(--blue-t);color:var(--blue);font-weight:800;margin-bottom:10px}
ul.clean{list-style:none;margin:14px 0;padding:0}
ul.clean li{padding:7px 0 7px 30px;position:relative;color:var(--muted)}
ul.clean li::before{content:"✓";position:absolute;left:2px;top:7px;color:var(--blue);font-weight:800}
ul.clean li b{color:var(--ink)}
.faq details{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px 20px;margin:0 0 10px;box-shadow:var(--shadow-s)}
.faq summary{cursor:pointer;font-weight:800;font-size:16.5px;list-style:none;position:relative;padding-right:28px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:2px;top:-2px;color:var(--blue);font-weight:800;font-size:22px}
.faq details[open] summary::after{content:"–"}
.faq details p{margin:10px 0 0;color:var(--muted);font-size:15.5px}
.cta-band{background:var(--blue-t);border:1px solid #D5DDF7;border-radius:var(--radius);padding:26px;margin:30px 0 0;text-align:center}
.cta-band p{margin:6px auto 0;color:var(--muted);max-width:560px}

/* ---------- footer ---------- */
.ftr{margin-top:56px;border-top:1px solid var(--line);background:#F6F2E9}
.ftr-in{padding:26px 0 30px;display:flex;flex-wrap:wrap;gap:12px 26px;align-items:center;justify-content:space-between;color:var(--muted);font-size:14.5px}
.ftr nav{display:flex;gap:16px;flex-wrap:wrap}
.ftr a{color:var(--muted);font-weight:700}
.ftr a:hover{color:var(--blue)}

/* ---------- print ---------- */
@page{size:letter;margin:0}
@media print{
  body{background:#fff;margin:0}
  .hdr,.hero,.section,.ftr,.cta-band,.sheetlabel,.tip,.mini-note,.ctl{display:none !important}
  .tool{margin:0}
  .toolcard{display:block;border:none;box-shadow:none;padding:0;margin:0}
  .sheetwrap{max-width:none;width:8.5in}
  .sheet{border:none;border-radius:0;box-shadow:none;width:8.5in;height:11in}
}