: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:#c2255c; /* 라즈베리 */
  --accent-soft:#fbe9f0;
  --stage:#ecebe6;
  --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,input,select{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;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:not(:disabled){background:var(--hover)}
.btn:disabled{opacity:.45;cursor:default}
.btn--solid{background:var(--ink);color:#fff;border:none;font-weight:500}
.btn--solid:hover:not(:disabled){background:var(--ink-hover)}
.btn--small{height:30px;padding:0 12px;font-size:12px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
input[type=range]{width:100%;accent-color:var(--accent)}
@media (max-width:640px){ .topbar{padding:14px 16px} }

.gs{flex:1;width:100%;max-width:1280px;margin:0 auto;padding:24px 28px 40px;display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:24px;align-items:start}
.stage-col{display:flex;flex-direction:column;gap:12px;min-width:0}

/* 격자 프리셋 */
.presets{display:flex;gap:6px;overflow-x:auto;padding:2px 2px 6px;scrollbar-width:thin}
.pbtn{flex:0 0 auto;display:flex;flex-direction:column;align-items:center;gap:5px;min-width:58px;padding:8px 8px 6px;border:1px solid var(--line-2);border-radius:12px;background:var(--panel);cursor:pointer;font-family:var(--mono);font-size:12px}
.pbtn:hover{border-color:var(--ink-2)}
.pbtn .gi{display:grid;gap:2px;width:30px;height:30px}
.pbtn .gi i{background:var(--line-2);border-radius:2px}
.pbtn[aria-checked="true"]{border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}
.pbtn[aria-checked="true"] .gi i{background:var(--accent)}

.stage{position:relative;display:flex;justify-content:center;align-items:center;min-height:380px;padding:16px;border-radius:16px;background:var(--stage);
  background-image:linear-gradient(45deg,rgba(0,0,0,.035) 25%,transparent 25%,transparent 75%,rgba(0,0,0,.035) 75%),linear-gradient(45deg,rgba(0,0,0,.035) 25%,transparent 25%,transparent 75%,rgba(0,0,0,.035) 75%);
  background-size:20px 20px;background-position:0 0,10px 10px}
.stage.is-over{outline:2px dashed var(--accent);outline-offset:-8px}
.stage canvas{display:block;max-width:100%;touch-action:none;cursor:grab;border-radius:4px}
.stage canvas.is-drag{cursor:grabbing}
.drop{display:flex;flex-direction:column;align-items:center;gap:10px;padding:40px 24px;border:2px dashed var(--line-2);border-radius:16px;background:var(--panel);cursor:pointer;width:100%;max-width:520px;text-align:center}
.drop:hover{border-color:var(--accent)}
.drop b{font-size:16px}
.drop span{font-size:12.5px;color:var(--sub)}
.drop-art{display:grid;grid-template-columns:repeat(3,22px);gap:3px;margin-bottom:6px}
.drop-art i{height:22px;border-radius:3px;background:var(--accent);opacity:.18}
.drop-art i:nth-child(odd){opacity:.38}
.drop-art i:nth-child(5){opacity:.9}
.stage-bar{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:10px 14px;background:var(--panel);border:1px solid var(--line);border-radius:14px}
.zoom{flex:1;min-width:200px;display:flex;flex-direction:column;gap:2px}
.zoom-label{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--ink-2)}

/* 조각 */
.tiles-wrap{display:flex;flex-direction:column;gap:10px;padding:14px;background:var(--panel);border:1px solid var(--line);border-radius:16px}
.tiles-head{display:flex;justify-content:space-between;align-items:baseline;gap:8px;flex-wrap:wrap}
.tiles-hint{font-size:12px;color:var(--sub)}
.tiles{display:grid;gap:4px;margin:0 auto;width:100%}
.tile{position:relative;padding:0;border:none;background:var(--soft);cursor:pointer;border-radius:3px;overflow:hidden;min-width:0}
.tile canvas{display:block;width:100%;height:auto}
.tile .no{position:absolute;left:6px;top:6px;min-width:22px;height:22px;padding:0 6px;border-radius:999px;background:rgba(0,0,0,.62);color:#fff;font-family:var(--mono);font-size:11.5px;line-height:22px;text-align:center}
.tile .dl{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(194,37,92,.72);color:#fff;font-size:13px;font-weight:500;opacity:0;transition:opacity .15s}
.tile:hover .dl,.tile:focus-visible .dl{opacity:1}
.tiles.is-dense .no{left:2px;top:2px;min-width:16px;height:16px;padding:0 3px;font-size:9px;line-height:16px}
.tiles.is-dense .dl{font-size:10px}

/* 패널 */
.panel{display:flex;flex-direction:column;gap:12px;min-width:0}
.card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:16px;display:flex;flex-direction:column;gap:10px;min-width:0}
.card-title{font-size:14px;font-weight:700}
.card-title small{font-weight:400;color:var(--muted);font-size:12px;margin-left:4px;font-family:var(--mono)}
.custom{display:flex;align-items:flex-end;gap:8px}
.mini{flex:1;display:flex;flex-direction:column;gap:4px;font-size:12px;color:var(--sub);min-width:0}
.mini input{height:40px;padding:0 10px;border:1px solid var(--line-2);border-radius:8px;background:var(--surface);font-family:var(--mono);font-size:16px;width:100%;min-width:0;color:var(--ink)}
.mini input:focus{outline:none;border-color:var(--accent)}
.times{font-family:var(--mono);color:var(--muted);padding-bottom:10px}
.ratio-row{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}
.rbtn{display:flex;flex-direction:column;align-items:center;gap:6px;padding:10px 4px 8px;border:1px solid var(--line-2);border-radius:10px;background:var(--panel);font-family:var(--mono);font-size:12px;cursor:pointer}
.rbtn i{display:block;width:calc(22px * var(--w));height:calc(22px * var(--h));border:1.6px solid currentColor;border-radius:3px}
.rbtn[aria-checked="true"]{background:var(--accent);border-color:var(--accent);color:#fff}
.note{margin:0;font-size:12px;color:var(--sub);line-height:1.55}
.seg{display:flex;background:var(--soft);border-radius:999px;padding:3px;gap:2px}
.seg-btn{flex:1;height:32px;padding:0 10px;background:transparent;color:var(--sub);border:none;border-radius:999px;font-size:13px;cursor:pointer;white-space:nowrap}
.seg-btn.is-active{background:var(--panel);color:var(--ink);font-weight:500;box-shadow:0 1px 3px rgba(0,0,0,.12)}
.check{display:flex;align-items:flex-start;gap:8px;font-size:13px;cursor:pointer;line-height:1.4}
.check input{width:16px;height:16px;accent-color:var(--accent);margin:1px 0 0;flex-shrink:0}
.check small{color:var(--muted)}
.field{display:flex;flex-direction:column;gap:4px}
.field-label{display:flex;justify-content:space-between;align-items:center;font-size:12.5px;color:var(--ink-2)}
.field .tb-presets{margin-top:4px}
.sel{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:13px}
.sel select{height:34px;padding:0 8px;border:1px solid var(--line-2);border-radius:8px;background:var(--panel);font-size:13px;min-width:0;max-width:170px}
.result{display:flex;justify-content:space-between;align-items:baseline;gap:8px;padding:10px 12px;background:var(--panel-soft);border-radius:10px}
.result b{font-family:var(--mono);font-size:15px;font-weight:500}
.btn--save{height:44px;font-size:14px;background:var(--accent)}
.btn--save:hover:not(:disabled){background:#a51d4d}
.dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--accent);margin-right:6px;transform:translateY(-1px)}

.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:20}
.toast.is-show{opacity:1;transform:translate(-50%,0)}

@media (max-width:960px){ .gs{grid-template-columns:minmax(0,1fr)} }
@media (max-width:640px){
  .gs{padding:16px 16px 32px;gap:16px}
  .stage{min-height:260px;padding:10px}
  .tiles-wrap{padding:10px}
}
@media (prefers-reduced-motion:reduce){ *{animation:none !important;transition:none !important} }

/* 다크 모드 (인쇄는 라이트 그대로) — 사진 · 조각은 원래 색 그대로 */
@media screen{
  :root[data-theme="dark"]{
    color-scheme:dark;
    --bg:#151317; --surface:#1b191e; --panel:#201e24; --panel-soft:#26232a;
    --ink:#eeebf0; --ink-hover:#ffffff; --ink-2:#cbc6cf; --sub:#a39ea8; --muted:#8c8791;
    --line:#2f2c33; --line-2:#3b3740; --line-3:#28252c; --hover:#2c2930; --soft:#29262d; --track:#36323a;
    --accent:#f27aa6; --accent-soft:rgba(242,122,166,.15);
    --stage:#1a181d;
  }
  :root[data-theme="dark"] .btn--solid,:root[data-theme="dark"] .toast,
  :root[data-theme="dark"] .rbtn[aria-checked="true"],
  :root[data-theme="dark"] .tb-presets button[aria-pressed="true"]{color:var(--bg)}
  :root[data-theme="dark"] .btn--solid{background:var(--accent)}
  :root[data-theme="dark"] .btn--solid:hover:not(:disabled){background:#f592b7}
  :root[data-theme="dark"] .stage{background-image:linear-gradient(45deg,rgba(255,255,255,.03) 25%,transparent 25%,transparent 75%,rgba(255,255,255,.03) 75%),linear-gradient(45deg,rgba(255,255,255,.03) 25%,transparent 25%,transparent 75%,rgba(255,255,255,.03) 75%)}
  :root[data-theme="dark"] .seg-btn.is-active{background:var(--line-2);box-shadow:0 1px 3px rgba(0,0,0,.4)}
  :root[data-theme="dark"] .drop-art i{opacity:.3}
  :root[data-theme="dark"] .drop-art i:nth-child(odd){opacity:.5}
  :root[data-theme="dark"] .drop-art i:nth-child(5){opacity:.95}
}