: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:#f76707; /* 탠저린 */
  --accent-soft:#fff0e4;
  --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}
.actions{display:flex;gap:8px}
.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:disabled{opacity:.5;cursor:progress}
.btn--solid{background:var(--ink);color:#fff;border:none;font-weight:500}
.btn--solid:hover{background:var(--ink-hover)}
.btn.sm{height:32px;font-size:12.5px}
.in{height:36px;padding:0 10px;background:var(--surface);border:1px solid var(--line-2);border-radius:8px;font:inherit;font-size:13.5px;color:var(--ink);width:100%;min-width:0}
.in:focus{outline:none;border-color:var(--ink);background:#fff}

/* ---------- 레이아웃 ---------- */
.studio{flex:1;display:flex;flex-direction:column;gap:14px;padding:18px 24px 28px;width:100%;max-width:1680px;margin:0 auto}
.types{display:flex;gap:6px;overflow-x:auto;padding:4px;background:var(--panel);border:1px solid var(--line);border-radius:14px;scrollbar-width:none}
.types::-webkit-scrollbar{display:none}
.type{flex:1 0 auto;display:flex;align-items:center;justify-content:center;gap:8px;height:42px;padding:0 14px;border:none;background:transparent;border-radius:10px;font-size:13.5px;font-weight:500;color:var(--ink-2);cursor:pointer;white-space:nowrap;transition:background .15s,color .15s}
.type svg{width:20px;height:20px;fill:currentColor;stroke:currentColor;stroke-width:0}
.type svg path[fill="none"]{stroke-width:2}
.type:hover{background:var(--soft);color:var(--ink)}
.type.is-on{background:var(--ink);color:#fff}
.type.is-on svg{color:var(--accent)}

.work{display:grid;grid-template-columns:340px minmax(0,1fr) 300px;gap:14px;align-items:start}
.side{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:14px;min-width:0}
.side-head{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:8px;flex-wrap:wrap}
.side-acts{display:flex;gap:4px;flex-wrap:wrap}
.hint{margin:0 0 10px;font-size:12px;color:var(--sub);line-height:1.5}
.chip{height:28px;padding:0 10px;border:1px solid var(--line-2);border-radius:999px;background:transparent;font-size:12px;cursor:pointer;white-space:nowrap}
.chip:hover{background:var(--hover)}
.chip.ghost{border-color:transparent;color:var(--sub)}

/* 데이터 표 */
.grid-wrap{overflow:auto;max-height:420px;border:1px solid var(--line);border-radius:10px;background:var(--surface)}
.dgrid{border-collapse:separate;border-spacing:0;font-size:13px;min-width:100%}
.dgrid th{position:sticky;top:0;z-index:2;background:var(--soft);font-family:var(--mono);font-size:10.5px;font-weight:500;color:var(--muted);height:26px;padding:0 6px;border-bottom:1px solid var(--line);white-space:nowrap;text-align:left}
.dgrid th.corner{left:0;z-index:3;width:30px}
.dgrid th.rowh{position:sticky;left:0;z-index:1;background:var(--soft);border-right:1px solid var(--line);border-bottom:1px solid var(--line-3);text-align:center;width:30px;padding:0 2px}
.dgrid .sw{display:inline-block;width:8px;height:8px;border-radius:2px;margin-right:5px;vertical-align:0}
.dgrid .x{border:none;background:none;color:var(--muted);cursor:pointer;font-size:13px;line-height:1;padding:0 2px;margin-left:4px;opacity:0;transition:opacity .15s}
.dgrid th:hover .x,.dgrid .x:focus{opacity:1}
.dgrid th.rowh .x{margin-left:0}
.dgrid td{padding:0;border-bottom:1px solid var(--line-3);border-right:1px solid var(--line-3)}
.cell{width:100%;min-width:62px;height:32px;border:none;background:transparent;font:inherit;font-size:13px;padding:0 8px;color:var(--ink)}
.cell.num{text-align:right;font-family:var(--mono);font-size:12.5px}
.cell.bad{color:#c92a2a;background:#fff5f5}
.cell:focus{outline:2px solid var(--accent);outline-offset:-2px;background:#fff}
.hrow .cell{font-weight:600;background:#fffaf5}
.grid-acts{display:flex;gap:4px;flex-wrap:wrap;margin-top:10px}
.paste-box{margin-top:12px;padding:12px;border-radius:12px;background:var(--accent-soft);border:1px solid #ffd8b8;display:flex;flex-direction:column;gap:8px}
.mini-title{font-size:12.5px;font-weight:600}
#pasteArea{width:100%;border:1px solid #f3c9a6;border-radius:8px;padding:8px 10px;font-family:var(--mono);font-size:12px;line-height:1.5;resize:vertical;background:#fff}
.paste-acts{display:flex;gap:6px;justify-content:flex-end}

/* 캔버스 */
.canvas{position:sticky;top:12px;display:flex;flex-direction:column;min-width:0;border-radius:18px;overflow:hidden;border:1px solid var(--line);background:#e9e7e1}
.canvas-bar{display:flex;align-items:center;gap:12px;padding:10px 16px;background:var(--panel);border-bottom:1px solid var(--line)}
.canvas-note{font-size:12px;color:var(--accent);font-weight:500}
.canvas-stage{position:relative;padding:28px;display:flex;align-items:center;justify-content:center;min-height:440px;
  background-color:#ecebe6;background-image:radial-gradient(rgba(0,0,0,.08) 1px,transparent 1.3px);background-size:14px 14px}
.chart-holder{width:100%;max-height:72vh;display:flex;justify-content:center;filter:drop-shadow(0 18px 36px rgba(30,25,15,.14))}
.chart-holder svg{display:block;width:auto;height:auto;max-width:100%;max-height:72vh;border-radius:6px}
.chart-holder.transparent svg{background-image:linear-gradient(45deg,#ddd 25%,transparent 25%,transparent 75%,#ddd 75%),linear-gradient(45deg,#ddd 25%,transparent 25%,transparent 75%,#ddd 75%);background-color:#fff;background-size:16px 16px;background-position:0 0,8px 8px}
.chart-holder [data-tip]{cursor:pointer;transition:opacity .15s}
.chart-holder svg:hover [data-mark]:not(:hover){opacity:.82}
.tip{position:absolute;left:0;top:0;z-index:5;pointer-events:none;background:var(--ink);color:#fff;font-size:12.5px;padding:7px 10px;border-radius:8px;white-space:nowrap;box-shadow:0 8px 24px rgba(0,0,0,.2)}

/* 스타일 패널 */
.group{display:flex;flex-direction:column;gap:9px;padding:12px 0;border-top:1px solid var(--line-3)}
.side-head+.group{border-top:none;padding-top:2px}
.g-title{font-size:12px;font-weight:600;color:var(--ink-2)}
.f{display:flex;flex-direction:column;gap:4px;min-width:0}
.f>span{font-size:11.5px;color:var(--sub)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.palettes{display:flex;flex-direction:column;gap:4px}
.pal{display:flex;align-items:center;gap:10px;padding:6px 8px;border:1px solid transparent;border-radius:10px;background:transparent;cursor:pointer;text-align:left}
.pal:hover{background:var(--soft)}
.pal.is-on{border-color:var(--ink);background:#fff}
.pal-sw{display:flex;border-radius:5px;overflow:hidden;flex:none}
.pal-sw i{width:14px;height:20px}
.pal-n{font-size:12.5px;color:var(--ink-2);display:flex;align-items:center;gap:6px}
.pal-n b{font-family:var(--mono);font-size:9.5px;font-weight:500;letter-spacing:.06em;padding:1px 5px;border-radius:4px;background:#e6f4ea;color:#1b6b3a}
.seg{display:grid;grid-template-columns:repeat(4,1fr);gap:2px;padding:2px;background:var(--soft);border-radius:10px}
.seg button{height:30px;border:none;background:transparent;border-radius:8px;font-size:12px;cursor:pointer;color:var(--ink-2)}
.seg button.is-on{background:#fff;color:var(--ink);font-weight:600;box-shadow:0 1px 2px rgba(0,0,0,.08)}
.checks{display:grid;grid-template-columns:1fr 1fr;gap:6px 8px}
.ck{display:flex;align-items:center;gap:6px;font-size:12.5px;color:var(--ink-2);cursor:pointer}
.ck input{accent-color:var(--accent);margin:0}
.sizes{display:grid;grid-template-columns:repeat(5,1fr);gap:4px}
.size{display:flex;flex-direction:column;align-items:center;gap:4px;padding:6px 2px;border:1px solid var(--line);border-radius:8px;background:transparent;cursor:pointer;font-size:10.5px;color:var(--ink-2)}
.size i{display:block;height:20px;max-width:28px;border:1.5px solid currentColor;border-radius:3px}
.size.is-on{border-color:var(--ink);color:var(--ink);background:#fff}
.privacy{margin:6px 0 0;font-size:11.5px;color:var(--muted);line-height:1.5}
.studio[data-kind="pie"] .axis-only,.studio:not([data-kind="pie"]) .pie-only,.studio:not([data-kind="line"]) .line-only{display:none !important}

.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,20px);opacity:0;pointer-events:none;background:var(--ink);color:#fff;padding:10px 16px;border-radius:999px;font-size:13px;transition:.25s;z-index:120;max-width:calc(100% - 32px)}
.toast.is-on{opacity:1;transform:translate(-50%,0)}

@media (max-width:1240px){
  .work{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .canvas{grid-column:1 / -1;grid-row:1;position:static}
}
@media (max-width:760px){
  .studio{padding:12px 16px 24px}
  .work{grid-template-columns:minmax(0,1fr)}
  .canvas-stage{padding:14px;min-height:240px}
  .type{flex:0 0 auto;padding:0 12px;font-size:12.5px}
}
@media (max-width:640px){
  .topbar{padding:14px 16px}
}
@media (prefers-reduced-motion:reduce){*{transition:none !important}}

/* 다크 모드 (인쇄는 라이트 그대로): 차트 SVG(내보내기 결과)는 고른 배경 그대로, 주변 작업대만 어둡게 */
@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:#ff8a3d; --accent-soft:rgba(255,138,61,.1);
  }
  :root[data-theme="dark"] .btn--solid,:root[data-theme="dark"] .type.is-on,:root[data-theme="dark"] .tip,:root[data-theme="dark"] .toast{color:var(--bg)}
  :root[data-theme="dark"] .type.is-on svg{color:#e8590c}
  :root[data-theme="dark"] .in:focus,:root[data-theme="dark"] .cell:focus{background:var(--panel)}
  :root[data-theme="dark"] .cell.bad{color:#ff8a8a;background:rgba(255,90,90,.12)}
  :root[data-theme="dark"] .hrow .cell{background:rgba(255,138,61,.06)}
  :root[data-theme="dark"] .paste-box{border-color:rgba(255,138,61,.28)}
  :root[data-theme="dark"] #pasteArea{background:var(--surface);border-color:rgba(255,138,61,.28);color:var(--ink)}
  :root[data-theme="dark"] .canvas{background:var(--surface)}
  :root[data-theme="dark"] .canvas-stage{background-color:#18171d;background-image:radial-gradient(rgba(255,255,255,.07) 1px,transparent 1.3px)}
  :root[data-theme="dark"] .chart-holder{filter:drop-shadow(0 18px 36px rgba(0,0,0,.45))}
  :root[data-theme="dark"] .pal.is-on,:root[data-theme="dark"] .size.is-on{background:var(--hover)}
  :root[data-theme="dark"] .pal-n b{background:rgba(64,192,87,.16);color:#7fd99a}
  :root[data-theme="dark"] .seg button.is-on{background:var(--track);box-shadow:0 1px 2px rgba(0,0,0,.4)}
}