:root{
  --ivory:#fbf7ef;
  --paper:#fffdf8;
  --ink:#161616;
  --muted:#69645d;
  --line:#e7ded0;
  --soft:#f3efe8;
  --blue:#8fb7c9;
  --blue-dark:#456f83;
  --gold:#c8a765;
  --green:#9fbf94;
  --fire:#d9957f;
  --earth:#c8a765;
  --metal:#b9b9b9;
  --water:#8fb7c9;
  --shadow:0 22px 70px rgba(34,28,18,.10);
  --radius:26px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Inter,"Helvetica Neue",Arial,"Apple SD Gothic Neo","Noto Sans","Noto Sans KR","Noto Sans Arabic","Noto Sans Bengali","Noto Sans Lao","Noto Sans Myanmar",sans-serif;
  color:var(--ink);
  background:
    radial-gradient(circle at 10% 8%, rgba(143,183,201,.22), transparent 32%),
    radial-gradient(circle at 92% 4%, rgba(200,167,101,.20), transparent 30%),
    linear-gradient(180deg,var(--ivory),#fffdf8 44%,var(--ivory));
  line-height:1.55;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
.wrap{width:min(1120px, calc(100vw - 40px));margin:0 auto}
.nav{
  position:sticky;top:0;z-index:10;
  background:rgba(251,247,239,.84);
  backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(231,222,208,.72);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:16px 0}
.brand{display:flex;align-items:center;gap:10px;font-weight:850}
.mark{width:34px;height:34px;border-radius:12px;background:linear-gradient(135deg,var(--ink),#4a4a48);color:var(--ivory);display:grid;place-items:center;font-weight:900}
.nav-link{font-size:14px;color:var(--muted);font-weight:760}
.nav-link:hover{color:var(--ink)}
.nav-short{display:none}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(40px,5.5vw,62px);line-height:1.02;margin-bottom:18px;text-wrap:balance}
h2{font-size:clamp(28px,4vw,42px);line-height:1.08;margin-bottom:16px;text-wrap:balance}
h3{font-size:22px;line-height:1.2;margin-bottom:10px}
.demo-title span{display:block}
section{padding:68px 0}
.hero{padding:58px 0 52px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:42px;align-items:center}
.hero-grid > *,.grid-2 > *,.field-grid > *{min-width:0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);background:rgba(255,255,255,.72);padding:8px 12px;border-radius:999px;color:var(--muted);font-size:14px;margin-bottom:22px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--gold)}
.subhead{font-size:clamp(19px,2vw,23px);color:#3d3934;max-width:720px;margin-bottom:18px}
.muted{color:var(--muted)}
.micro{font-size:13px;color:var(--muted)}
.notice,.panel,.form-card,.name-card,.hero-card{
  background:rgba(255,255,255,.66);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px;
  box-shadow:0 12px 38px rgba(34,28,18,.055);
}
.notice{max-width:680px}
.notice p{margin:8px 0 0;color:var(--muted)}
.language-panel{
  max-width:680px;
  margin-top:16px;
  background:rgba(255,255,255,.58);
  border:1px solid var(--line);
  border-radius:22px;
  padding:18px;
}
.language-panel .field{margin-bottom:10px}
.language-panel .micro{margin:6px 0 0}
.hero-card{box-shadow:var(--shadow)}
.mini-flow{display:grid;gap:10px}
.mini-flow span{
  display:flex;align-items:center;justify-content:center;
  min-height:44px;border:1px solid var(--line);background:#fff;border-radius:16px;
  color:#3f3933;font-weight:820;text-align:center;padding:10px;
}
.section-head{max-width:780px;margin-bottom:30px}
.section-head.compact{margin-bottom:18px}
.form-section{padding-top:36px}
.form-card{background:rgba(255,255,255,.78)}
.field-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.field{display:grid;gap:8px;font-weight:780;color:#34302b}
.field-wide{grid-column:1/-1}
.field legend,.field > span{font-weight:780;color:#34302b}
.field fieldset,.field{min-width:0}
.date-group,.time-group{
  border:1px solid var(--line);
  background:rgba(255,255,255,.58);
  border-radius:20px;
  padding:18px;
}
.inline-selects{display:grid;gap:12px}
.inline-selects label{display:grid;gap:8px;min-width:0}
.inline-selects span{font-size:13px;color:var(--muted);font-weight:780}
.date-selects{grid-template-columns:1fr 1.2fr 1fr}
.time-selects{grid-template-columns:repeat(3,1fr)}
.time-group{transition:opacity .2s ease,background .2s ease}
.time-group.is-optional{opacity:.72;background:rgba(243,239,232,.62)}
.field small{font-weight:500;color:var(--muted)}
input,select{
  width:100%;
  min-height:48px;
  border:1px solid var(--line);
  border-radius:16px;
  background:#fff;
  color:var(--ink);
  padding:12px 14px;
  font:inherit;
}
input:focus,select:focus,button:focus-visible,a:focus-visible{
  outline:3px solid rgba(143,183,201,.55);
  outline-offset:3px;
}
.checkbox-group{border:0;margin:24px 0 0;padding:0}
.checkbox-group legend{font-weight:820;margin-bottom:12px}
.checkbox-group{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.checkbox-group legend{grid-column:1/-1}
.checkbox-group label{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:12px;color:#403b35}
.checkbox-group input{width:auto;min-height:auto}
.button-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:24px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:48px;border-radius:999px;padding:14px 22px;
  border:1px solid transparent;font-weight:820;font:inherit;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease;
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--ink);color:#fff;box-shadow:0 14px 35px rgba(22,22,22,.18)}
.btn-secondary{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-secondary.light{background:#fff;color:var(--ink)}
.results{padding-top:44px}
.result-grid,.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.label{font-size:13px;text-transform:uppercase;color:var(--blue-dark);font-weight:850;margin-bottom:10px}
.elements-card{margin-top:18px}
.element-bars{display:grid;gap:14px}
.element-row{
  display:grid;
  gap:10px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:18px;
  padding:14px;
  color:#514c45;
}
.element-row-head{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:start}
.element-name{font-weight:880;color:var(--ink)}
.element-note{font-size:14px;color:var(--muted);margin-top:2px}
.element-value{font-weight:900;color:var(--blue-dark)}
.element-bar-track{
  width:100%;
  height:12px;
  border-radius:999px;
  background:rgba(22,22,22,.08);
  overflow:hidden;
}
.element-bar-fill{
  height:100%;
  border-radius:999px;
  width:var(--value);
}
.wood{background:linear-gradient(90deg,#8ead83,var(--green))}
.fire{background:linear-gradient(90deg,#c87862,var(--fire))}
.earth{background:linear-gradient(90deg,#b89244,var(--earth))}
.metal{background:linear-gradient(90deg,#939393,var(--metal))}
.water{background:linear-gradient(90deg,#6f9fb5,var(--water))}
.flow-line{grid-template-columns:repeat(3,1fr);margin-top:0}
.names-section,.card-preview-section,.use-section{padding:38px 0 0}
.name-card{background:linear-gradient(180deg,#fff,#fff8eb)}
.name-card h3{font-size:32px}
.toggle-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.toggle{min-height:42px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--ink);font-weight:780;padding:10px 14px;cursor:pointer}
.toggle.active{background:var(--ink);color:#fff;border-color:var(--ink)}
.k-name-card{
  position:relative;
  max-width:520px;
  border-radius:34px;
  background:linear-gradient(180deg,#fff,#fff8eb);
  border:1px solid var(--line);
  padding:30px;
  box-shadow:var(--shadow);
  overflow:hidden;
}
.k-name-card:before{content:"한글";position:absolute;right:22px;top:12px;font-size:72px;font-weight:900;color:rgba(22,22,22,.055)}
.card-mark{font-weight:900;margin-bottom:22px}
.card-hangul{font-size:64px;line-height:1;font-weight:900;margin-bottom:10px}
.card-roman{font-size:20px;font-weight:850;color:var(--blue-dark);margin-bottom:14px}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.chip{font-size:13px;background:var(--soft);border:1px solid var(--line);padding:7px 10px;border-radius:999px;color:#47413b}
.cta-panel{
  margin-top:44px;
  background:linear-gradient(135deg,var(--ink),#30302f);
  color:#fff;
  border-radius:34px;
  padding:34px;
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:20px;
  align-items:center;
}
.cta-panel p,.cta-panel .micro{color:#f1eee8}
footer{padding:42px 0;border-top:1px solid var(--line);color:var(--muted)}
.footer-inner{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.is-rtl{text-align:right}
.is-rtl .brand,.is-rtl .eyebrow,.is-rtl .checkbox-group label,.is-rtl .button-row,.is-rtl .chip-row,.is-rtl .toggle-row{direction:rtl}
.is-rtl .element-value{direction:ltr;text-align:left}
.is-rtl .card-hangul,.is-rtl .card-roman{direction:ltr;text-align:right}
@media(max-width:900px){
  .hero-grid,.result-grid,.grid-2,.cta-panel{grid-template-columns:1fr}
  .checkbox-group{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:620px){
  .wrap{width:calc(100vw - 32px)}
  .nav-inner{gap:10px}
  .nav-link{font-size:13px;white-space:nowrap}
  .nav-full{display:none}
  .nav-short{display:inline}
  section{padding:52px 0}
  .hero{padding-top:46px}
  h1{font-size:clamp(28px,9vw,34px);line-height:1.08}
  h2{font-size:28px}
  .subhead{font-size:18px}
  .notice p,.hero-card,.panel,.form-card{overflow-wrap:anywhere}
  .field-grid,.date-selects,.time-selects,.flow-line,.checkbox-group{grid-template-columns:1fr}
  .button-row .btn,.cta-panel .btn{width:100%}
  .panel,.form-card,.notice,.name-card,.hero-card{padding:22px;border-radius:22px}
  .mini-flow span{font-size:14px}
  .date-group,.time-group{padding:16px}
  .element-row-head{grid-template-columns:1fr}
  .element-value{font-size:15px}
  .card-hangul{font-size:52px}
  .k-name-card{padding:24px;border-radius:28px}
}