:root{
  --bg:#f5f4f0; --surface:#fbfbf9; --panel:#ffffff; --panel-soft:#f7f6f2;
  --ink:#1c1c1a; --ink-hover:#3a3935; --ink-2:#55534d; --sub:#7a776f; --muted:#8a877f;
  --line:#e3e1db; --line-2:#dcdad3; --line-3:#efeee9; --hover:#efeee9; --soft:#f3f2ee; --track:#ebe9e3;
  --accent:#ff5b2e; /* 리소 형광 오렌지 */
  --font:"IBM Plex Sans KR",sans-serif; --mono:"JetBrains Mono",monospace;
}
*{box-sizing:border-box}
[hidden]{display:none !important}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);-webkit-font-smoothing:antialiased}
button{font:inherit;color:inherit}
.mono-label{font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:var(--muted)}
.app{min-height:100vh;display:flex;flex-direction:column}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 28px;border-bottom:1px solid var(--line);background:var(--surface);flex-wrap:wrap}
.brand{display:flex;align-items:baseline;gap:14px;min-width:0;flex-wrap:wrap}
.brand-title{font-size:17px;font-weight:700;letter-spacing:-.01em;margin:0}
.actions{display:flex;gap:8px;flex-wrap:wrap}
.btn{height:36px;padding:0 14px;background:transparent;border:1px solid var(--line-2);border-radius:999px;font-size:13px;cursor:pointer;white-space:nowrap}
.btn:hover{background:var(--hover)}
.btn--solid{background:var(--ink);color:#fff;border:none;font-weight:500}
.btn--solid:hover{background:var(--ink-hover)}
.btn--sm{height:30px;padding:0 12px;font-size:12px}
.btn--wide{width:100%}
.text-input{height:38px;padding:0 10px;background:var(--surface);border:1px solid var(--line-2);border-radius:8px;font:inherit;font-size:13px;color:var(--ink);width:100%;min-width:0}
.text-input:focus,.select:focus{outline:none;border-color:var(--ink)}
.select{height:38px;padding:0 10px;border:1px solid var(--line-2);border-radius:8px;background:var(--surface);font:inherit;font-size:13px;color:var(--ink);width:100%}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.nz{width:100%;max-width:1320px;margin:0 auto;padding:28px 28px 56px;display:grid;grid-template-columns:300px minmax(0,1fr);gap:24px;align-items:start}

/* ---------- Panel ---------- */
.panel{background:var(--panel);border:1px solid var(--line);border-radius:4px 18px 18px 18px;padding:4px 18px;position:sticky;top:16px;
  box-shadow:6px 6px 0 var(--ink)}
.group{padding:16px 0;border-bottom:1px dashed var(--line-2);display:flex;flex-direction:column;gap:10px}
.group:last-child{border-bottom:none}
.row-head{display:flex;align-items:center;justify-content:space-between;gap:8px}
.lbl{font-size:12.5px;font-weight:700;color:var(--ink);letter-spacing:-.01em}
.lbl-sm{font-size:12.5px;color:var(--ink-2);margin-top:2px}
.seg{display:flex;background:var(--soft);border-radius:999px;padding:3px;gap:2px}
.seg-btn{height:28px;padding:0 12px;border:none;border-radius:999px;background:transparent;cursor:pointer;font-size:12px;color:var(--ink-2)}
.seg-btn.is-on{background:var(--ink);color:#fff}
.colors{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.cf{display:flex;align-items:center;gap:8px;height:40px;padding:0 10px 0 4px;border:1px solid var(--line-2);border-radius:10px;font-size:12.5px;color:var(--ink-2);cursor:pointer;background:var(--surface)}
.cf input{width:30px;height:30px;border:none;padding:0;background:none;cursor:pointer;flex:none}
.cf input::-webkit-color-swatch-wrapper{padding:0}
.cf input::-webkit-color-swatch{border:1px solid rgba(0,0,0,.12);border-radius:7px}
.cf input::-moz-color-swatch{border:1px solid rgba(0,0,0,.12);border-radius:7px}
.sl{display:flex;flex-direction:column;gap:3px}
.sl label{display:flex;justify-content:space-between;font-size:12.5px;color:var(--ink-2)}
.sl output{font-family:var(--mono);font-size:11.5px;color:var(--ink)}
.sl-head{display:flex;justify-content:space-between;align-items:center;gap:8px;font-size:12.5px;color:var(--ink-2)}
.sl-sub{margin-left:4px;font-family:var(--mono);font-size:11px;color:var(--muted)}
/* 슬라이더 직접 입력칸 · 단계 버튼: 단위 자리를 고정 폭으로 둬 입력칸 끝을 맞춤 */
.sl-head .tb-num{height:26px;width:48px;padding:0 6px;font-size:12px;color:var(--ink);border-color:var(--line-2);background:var(--surface)}
.sl-head .tb-num-wrap{width:66px;font-family:var(--mono);font-size:11px;color:var(--muted);gap:3px}
.sl-head > .tb-num{margin-right:18px}
.sl .tb-presets{margin-top:3px;gap:4px}
.sl .tb-presets button{height:26px;min-width:0;padding:0 9px;font-size:11.5px;border-color:var(--line-2)}
@media (pointer:coarse){.sl-head .tb-num{height:32px;width:56px;font-size:16px}.sl-head .tb-num-wrap{width:74px}.sl .tb-presets button{height:30px}}
input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:20px;background:transparent;margin:0;cursor:pointer}
input[type=range]::-webkit-slider-runnable-track{height:6px;border-radius:0;background:repeating-linear-gradient(90deg,var(--ink) 0 1px,transparent 1px 4px),var(--track)}
input[type=range]::-moz-range-track{height:6px;background:repeating-linear-gradient(90deg,var(--ink) 0 1px,transparent 1px 4px),var(--track)}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:14px;height:20px;margin-top:-7px;border-radius:3px;background:var(--accent);border:2px solid var(--ink)}
input[type=range]::-moz-range-thumb{width:10px;height:16px;border-radius:3px;background:var(--accent);border:2px solid var(--ink)}
.presets{display:grid;grid-template-columns:1fr 1fr;gap:6px}
.preset{height:52px;border-radius:8px;border:1.5px solid var(--ink);cursor:pointer;text-align:left;padding:6px 8px;display:flex;align-items:flex-end;font-size:12px;font-weight:700;position:relative;overflow:hidden}
.preset span{position:relative;background:rgba(255,255,255,.86);color:var(--ink);padding:1px 6px;border-radius:4px}
.preset:hover{transform:translate(-1px,-1px);box-shadow:2px 2px 0 var(--ink)}

/* ---------- Work ---------- */
.work{display:flex;flex-direction:column;gap:18px;min-width:0}
.preview{position:relative;height:500px;border-radius:18px;border:1.5px solid var(--ink);overflow:hidden;display:flex;align-items:flex-end;padding:28px}
.pv-card{position:relative;display:flex;flex-direction:column;gap:6px;max-width:360px;padding:18px 20px;border-radius:14px;background:rgba(255,255,255,.55);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.6)}
.pv-card strong{font-size:22px;letter-spacing:-.02em}
.pv-sub{font-size:13px;color:var(--ink-2);line-height:1.6}
.loupe{position:absolute;top:18px;right:18px;display:flex;flex-direction:column;align-items:center;gap:6px}
.loupe canvas{width:160px;height:160px;border-radius:50%;border:3px solid #fff;box-shadow:0 0 0 1.5px var(--ink),0 10px 30px rgba(0,0,0,.25);image-rendering:pixelated;background:#fff}
.loupe .mono-label{background:var(--ink);color:#fff;padding:3px 8px;border-radius:999px;font-size:10px}

.out-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:18px;align-items:start}
.card{background:var(--panel);border:1px solid var(--line);border-radius:16px;overflow:hidden}
.card-head{display:flex;align-items:center;gap:8px;padding:10px 12px 10px 16px;border-bottom:1px solid var(--line-3);background:var(--panel-soft);min-height:50px}
.card-head .btn{margin-left:auto}
.size-chip{font-family:var(--mono);font-size:11px;padding:2px 8px;border-radius:999px;background:var(--soft);color:var(--ink-2)}
.code{margin:0;padding:14px 16px;max-height:280px;overflow:auto;font-family:var(--mono);font-size:12px;line-height:1.7;white-space:pre-wrap;word-break:break-all;color:var(--ink-2)}
.code .p{color:#c2410c}.code .k{color:var(--ink);font-weight:500}.code .d{color:var(--muted)}
.exp{display:flex;flex-direction:column;gap:8px;padding:12px}
.exp-btn{display:flex;flex-direction:column;gap:2px;text-align:left;padding:12px 14px;border:1px solid var(--line-2);border-radius:12px;background:var(--surface);cursor:pointer}
.exp-btn:hover{border-color:var(--ink);background:#fff}
.exp-btn b{font-size:13.5px}
.exp-btn span{font-size:12px;color:var(--sub);line-height:1.5}
.exp-full{display:flex;flex-direction:column;gap:8px;padding-top:6px;border-top:1px dashed var(--line-2)}
.wh{display:flex;align-items:center;gap:6px}
.wh label{display:flex;align-items:center;gap:6px;flex:1;min-width:0}
.wh label span{font-family:var(--mono);font-size:11px;color:var(--muted)}
.wh .x{color:var(--muted)}
.wh input{font-family:var(--mono)}

.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,20px);background:var(--ink);color:#fff;padding:10px 18px;border-radius:999px;font-size:13px;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;z-index:50}
.toast.is-on{opacity:1;transform:translate(-50%,0)}

@media (max-width:1080px){
  .out-grid{grid-template-columns:1fr}
}
@media (max-width:900px){
  .nz{grid-template-columns:1fr}
  .panel{position:static;order:2}
  .work{display:contents}
  .preview{order:1}
  .out-grid{order:3}
}
@media (max-width:640px){
  .topbar{padding:14px 16px}
  .nz{padding:16px 16px 40px;gap:16px}
  .preview{height:340px;padding:16px}
  .loupe canvas{width:104px;height:104px}
  .pv-card strong{font-size:18px}
  .panel{box-shadow:4px 4px 0 var(--ink)}
}
@media (prefers-reduced-motion:reduce){ .toast{transition:none} }

/* 다크 모드 (인쇄는 라이트 그대로) — 미리보기·프리셋 견본·확대경은 결과물이라 그대로 */
@media screen{
  :root[data-theme="dark"]{
    color-scheme:dark;
    --bg:#141318; --surface:#1a1920; --panel:#1f1e26; --panel-soft:#24232c;
    --ink:#ecebf0; --ink-hover:#ffffff; --ink-2:#c9c7d1; --sub:#a09eab; --muted:#8a8895;
    --line:#2e2d36; --line-2:#393843; --line-3:#26252d; --hover:#2a2932; --soft:#26252d; --track:#34333d;
    --accent:#ff6a40; --accent-soft:rgba(255,106,64,.16);
  }
  :root[data-theme="dark"] .btn--solid,
  :root[data-theme="dark"] .seg-btn.is-on,
  :root[data-theme="dark"] .loupe .mono-label,
  :root[data-theme="dark"] .toast{color:var(--bg)}
  :root[data-theme="dark"] .panel{box-shadow:6px 6px 0 var(--line-2)}
  :root[data-theme="dark"] .cf input::-webkit-color-swatch{border-color:rgba(255,255,255,.15)}
  :root[data-theme="dark"] .cf input::-moz-color-swatch{border-color:rgba(255,255,255,.15)}
  /* 미리보기 안 카드는 라이트 글자색 유지 */
  :root[data-theme="dark"] .pv-card,:root[data-theme="dark"] .preset span{color:#1c1c1a}
  :root[data-theme="dark"] .pv-sub{color:#55534d}
  :root[data-theme="dark"] .code .p{color:#ff8a5c}
  :root[data-theme="dark"] .exp-btn:hover{background:var(--panel-soft)}
  :root[data-theme="dark"] .tb-presets button[aria-pressed="true"]{color:var(--bg)}
}
@media screen and (max-width:640px){
  :root[data-theme="dark"] .panel{box-shadow:4px 4px 0 var(--line-2)}
}