:root{
  --paper:#F3EEE4; --ink:#141312; --muted:#5d5850; --line:#d8d0c2; --card:#fbf8f2;
  --green:#0E7A3E; --red:#C8102E; --chip:#ebe4d6; --chip-on:#141312; --chip-on-ink:#F3EEE4;
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px); padding-bottom:env(safe-area-inset-bottom,0px);
  color-scheme:light dark;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --paper:#141312; --ink:#F1ECE2; --muted:#a59f94; --line:#34312c; --card:#1d1b19;
    --green:#2fa865; --red:#e5455c; --chip:#2a2724; --chip-on:#F1ECE2; --chip-on-ink:#141312;
  }
}
:root[data-theme="dark"]{
  --paper:#141312; --ink:#F1ECE2; --muted:#a59f94; --line:#34312c; --card:#1d1b19;
  --green:#2fa865; --red:#e5455c; --chip:#2a2724; --chip-on:#F1ECE2; --chip-on-ink:#141312;
}
*,*::before,*::after{box-sizing:inherit}
html{height:100%;scroll-padding-top:env(safe-area-inset-top,0px)}
body{margin:0;min-height:100%;background:var(--paper);color:var(--ink);
  font-family:"IBM Plex Sans KR","Apple SD Gothic Neo","Malgun Gothic",sans-serif;font-size:16px;line-height:1.6}
.display{font-family:"Black Han Sans","Apple SD Gothic Neo","Malgun Gothic",sans-serif;font-weight:400;letter-spacing:-.01em;line-height:1.1}
button{font:inherit;color:inherit;cursor:pointer}
img,svg{max-width:100%}
.wrap{max-width:560px;margin:0 auto;padding:0 20px}
.screen{display:none}
.screen.on{display:block}

/* keffiyeh band */
.band{height:28px;background-color:var(--ink);
  background-image:
    linear-gradient(45deg,transparent 42%,var(--paper) 42%,var(--paper) 50%,transparent 50%,transparent 92%,var(--paper) 92%),
    linear-gradient(-45deg,transparent 42%,var(--paper) 42%,var(--paper) 50%,transparent 50%,transparent 92%,var(--paper) 92%);
  background-size:14px 14px;opacity:.9}
.flagbar{display:flex;height:8px}
.flagbar i{flex:1}

/* landing */
.hero{padding:40px 0 8px}
.hero h1{font-size:clamp(44px,13vw,76px);margin:0 0 14px}
.hero p{margin:0;color:var(--muted);max-width:30em}
.march{position:relative;overflow:hidden;height:150px;margin:28px 0 10px;border-top:2px solid var(--ink);border-bottom:2px solid var(--ink)}
.march .lane{position:absolute;bottom:0;left:0;display:flex;gap:4px;align-items:flex-end;width:max-content;animation:walk 60s linear infinite}
.march .lane svg{width:96px;height:120px;flex:none}
@keyframes walk{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@media (prefers-reduced-motion:reduce){.march .lane{animation:none}}
.sub-en{margin-top:8px!important;font-size:14px}
.sub-en:empty{display:none}
.credit{margin-top:14px!important;font-size:14px;font-weight:500;color:var(--ink)!important;border-left:4px solid var(--red);padding-left:10px}
.count{font-size:15px;color:var(--muted);margin:0 0 26px}
.count b{color:var(--ink);font-size:22px;font-family:"Black Han Sans",sans-serif;font-weight:400;margin-right:2px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:2px solid var(--ink);
  background:var(--ink);color:var(--paper);padding:14px 22px;border-radius:0;font-weight:700;min-height:52px}
.btn.ghost{background:transparent;color:var(--ink)}
.btn.wide{width:100%}
.btn:disabled{opacity:.4;cursor:default}
.row{display:flex;gap:10px;flex-wrap:wrap}
.row .btn{flex:1 1 140px}

/* steps */
.top{display:flex;align-items:center;justify-content:space-between;padding:16px 0}
.back{background:none;border:0;padding:8px 0;font-weight:500}
.step{font-size:14px;color:var(--muted)}
h2{font-size:clamp(28px,8vw,38px);margin:12px 0 20px}
input[type=text]{width:100%;font:inherit;font-size:20px;padding:14px 16px;border:2px solid var(--ink);background:var(--card);color:var(--ink);border-radius:0}
.hint{font-size:14px;color:var(--muted);margin:8px 0 24px}
.moods{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:28px}
.mood{border:2px solid var(--line);background:var(--card);padding:16px 12px;text-align:left;font-weight:500;min-height:60px}
.mood[aria-pressed=true]{border-color:var(--ink);background:var(--ink);color:var(--paper)}

/* builder */
.stage{position:relative;background:var(--card);border:2px solid var(--ink);display:flex;justify-content:center}
.stage svg{width:min(78vw,300px);height:auto;display:block}
.tools{display:flex;justify-content:space-between;margin:10px 0 0}
.tool{background:none;border:0;font-size:14px;color:var(--muted);padding:6px 0;text-decoration:underline;text-underline-offset:3px}
.tabs{display:flex;gap:4px;overflow-x:auto;margin:18px 0 0;padding-bottom:4px;scrollbar-width:none}
.tab{flex:none;border:0;border-bottom:3px solid transparent;background:none;padding:8px 10px;font-weight:500;color:var(--muted)}
.tab[aria-selected=true]{color:var(--ink);border-color:var(--red)}
.panel{border-top:1px solid var(--line);padding:16px 0 4px;min-height:150px}
.panel h3{font-size:14px;font-weight:500;color:var(--muted);margin:0 0 8px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.chip{border:2px solid transparent;background:var(--chip);padding:9px 14px;font-size:15px;min-height:44px}
.chip[aria-pressed=true]{background:var(--chip-on);color:var(--chip-on-ink)}
.sw{width:44px;height:44px;border-radius:50%;border:3px solid var(--paper);outline:2px solid transparent;padding:0}
.sw[aria-pressed=true]{outline-color:var(--ink)}
.done-bar{position:sticky;bottom:0;background:var(--paper);padding:12px 0 calc(12px + env(safe-area-inset-bottom,0px));border-top:1px solid var(--line);margin-top:8px}

/* certificate */
.cert{border:2px solid var(--ink);background:var(--card);margin-top:8px}
.cert .head{padding:18px 18px 0}
.cert .head .display{font-size:28px}
.cert .av{display:flex;justify-content:center;padding:6px 0}
.cert .av svg{width:min(70vw,260px);height:auto}
.cert .body{padding:0 18px 18px}
.cert .body p{margin:0 0 6px}
.cert .no{font-family:"Black Han Sans",sans-serif;font-size:20px}
.tags{color:var(--green);font-weight:500}
.alt{margin:20px 0}
.alt textarea{width:100%;min-height:96px;font:inherit;font-size:14px;padding:12px;border:1px solid var(--line);background:var(--card);color:var(--ink);resize:vertical}
.notice{font-size:14px;color:var(--muted);margin:10px 0}
.preview{display:none;margin:16px 0;border:1px solid var(--line)}
.preview img{display:block;width:100%}
.foot{font-size:13px;color:var(--muted);padding:28px 0 40px}
.langbar{display:flex;justify-content:flex-end;padding-top:8px}
.langbtn{background:none;border:1px solid var(--line);padding:6px 12px;font-size:14px;font-weight:500;min-height:36px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}