: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:#f2542d; /* 토마토 */
  --accent-soft:#fde7e1;
  --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,select,input{font:inherit;color:inherit}
.mono-label{font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:var(--muted)}
.mono{font-family:var(--mono)}
.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{background:var(--hover)}
.btn--solid{background:var(--ink);color:#fff;border:none;font-weight:500}
.btn--solid:hover{background:var(--ink-hover)}
.text-input{height:38px;width:100%;padding:0 12px;background:var(--surface);border:1px solid var(--line-2);border-radius:8px;font-size:14px;color:var(--ink)}
.text-input:focus{outline:none;border-color:var(--ink)}
.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)}
kbd{font-family:var(--mono);font-size:10.5px;padding:1px 5px;border:1px solid var(--line-2);border-bottom-width:2px;border-radius:4px;background:var(--surface)}
@media (max-width:640px){ .topbar{padding:14px 16px} }

/* ---------- 레이아웃 ---------- */
.mk{flex:1;display:grid;grid-template-columns:minmax(0,1fr) 340px;align-items:start}
.stage-wrap{position:sticky;top:0;padding:28px;display:flex;flex-direction:column;gap:12px;min-width:0}
.stage{position:relative;display:grid;place-items:center;min-height:min(72vh,680px);padding:32px;border-radius:20px;overflow:hidden;
  background-color:#e9e7e1;background-image:radial-gradient(circle,#d3d0c8 1px,transparent 1.2px);background-size:18px 18px;border:1px solid var(--line)}
.stage.is-transparent{background-color:#fff;background-image:linear-gradient(45deg,#ecebe6 25%,transparent 25%),linear-gradient(-45deg,#ecebe6 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#ecebe6 75%),linear-gradient(-45deg,transparent 75%,#ecebe6 75%);background-size:16px 16px;background-position:0 0,0 8px,8px -8px,-8px 0}
#preview{display:block;max-width:100%;border-radius:2px;animation:pop .35s cubic-bezier(.2,.9,.3,1.2)}
.drop-hint{position:absolute;inset:10px;display:grid;place-items:center;border:2px dashed var(--accent);border-radius:14px;background:rgba(242,84,45,.08);opacity:0;pointer-events:none;transition:opacity .15s}
.drop-hint span{padding:8px 14px;border-radius:999px;background:var(--accent);color:#fff;font-size:13px;font-weight:500}
.stage.is-over .drop-hint{opacity:1}
.stage-foot{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;align-items:center}
.stage-tip{font-size:12px;color:var(--sub)}

.panel{border-left:1px solid var(--line);background:var(--panel);min-height:100%;display:flex;flex-direction:column}
.group{display:flex;flex-direction:column;gap:12px;padding:20px 22px;border-bottom:1px solid var(--line-3)}
.group-title{display:flex;align-items:center;gap:8px;margin:0;font-size:14px;font-weight:700}
.group-title .num{font-family:var(--mono);font-size:11px;font-weight:500;color:var(--accent);letter-spacing:.06em}
.field{display:flex;flex-direction:column;gap:7px}
.field-label{display:flex;justify-content:space-between;align-items:center;gap:8px;font-size:12.5px;color:var(--ink-2)}
.field-label small{color:var(--muted);font-size:11px}
.field .tb-presets,.bg-pane .tb-presets{margin-top:2px}

.frames{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}
.frame-opt{display:flex;flex-direction:column;align-items:center;gap:6px;padding:10px 2px 8px;border:1px solid var(--line-2);border-radius:12px;background:var(--surface);font-size:12px;cursor:pointer;transition:border-color .15s,background .15s}
.frame-opt:hover{border-color:var(--ink)}
.frame-opt.is-active{border-color:var(--accent);background:var(--accent-soft);color:#a3300f;font-weight:500}
.fi{display:block;width:40px;height:30px;border-radius:4px;position:relative}
.fi-none{border:1.5px dashed #b9b6ad}
.fi-light,.fi-dark{border:1.5px solid #c9c6be;background:#fff;overflow:hidden}
.fi-light::before,.fi-dark::before{content:"";position:absolute;left:0;right:0;top:0;height:8px;background:#e7e5e0}
.fi-light i,.fi-dark i{position:absolute;top:2.5px;left:3px;width:3px;height:3px;border-radius:50%;background:#ff5f57;box-shadow:5px 0 #febc2e,10px 0 #28c840}
.fi-dark{background:#2a2b2e;border-color:#2a2b2e}
.fi-dark::before{background:#3a3b3f}
.fi-phone{width:19px;border-radius:5px;border:2.5px solid #2a2b2e;background:#fff}

.seg{display:flex;background:var(--soft);border-radius:999px;padding:3px;gap:2px}
.seg-btn{flex:1;height:30px;border:none;background:transparent;border-radius:999px;font-size:12.5px;color:var(--sub);cursor:pointer;white-space:nowrap}
.seg-btn.is-active{background:#fff;color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.12);font-weight:500}
.bg-pane{display:flex;flex-direction:column;gap:10px}
.swatches,.grads{display:grid;grid-template-columns:repeat(8,1fr);gap:6px}
.grads{grid-template-columns:repeat(4,1fr)}
.swatches button{aspect-ratio:1;border-radius:50%;border:1px solid rgba(0,0,0,.12);cursor:pointer;padding:0}
.grads button{height:34px;border-radius:9px;border:1px solid rgba(0,0,0,.08);cursor:pointer;padding:0}
.swatches button.is-active,.grads button.is-active{outline:2px solid var(--ink);outline-offset:2px}
.color-row{display:flex;align-items:center;gap:8px}
.color-row .mono{font-size:12.5px;color:var(--ink-2)}
input[type=color]{width:36px;height:36px;padding:0;border:1px solid var(--line-2);border-radius:9px;background:none;cursor:pointer;flex:0 0 auto}
input[type=color]::-webkit-color-swatch-wrapper{padding:3px}
input[type=color]::-webkit-color-swatch{border:none;border-radius:6px}
.angle{display:flex;align-items:center;gap:8px;flex:1;min-width:0}
.angle input[type=range]{flex:1;min-width:0}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{height:30px;padding:0 12px;border:1px solid var(--line-2);border-radius:999px;background:var(--surface);font-family:var(--mono);font-size:12px;cursor:pointer}
.chip:hover{border-color:var(--ink)}
.chip.is-active{background:var(--ink);border-color:var(--ink);color:#fff}
.note{margin:0;font-size:12px;line-height:1.6;color:var(--muted)}

.group--export{border-bottom:none;background:var(--panel-soft);flex:1}
.out-size{margin:0;font-size:13px;color:var(--sub);text-align:center}
.out-size .mono{font-size:22px;font-weight:500;color:var(--ink);letter-spacing:-.02em}
.export-btns{display:grid;grid-template-columns:1fr 1.4fr;gap:8px}
.export-btns .btn{height:44px;font-size:14px}
.btn--accent{background:var(--accent)}
.btn--accent:hover{background:#d9431e}
.dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--accent);margin-right:6px;vertical-align: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:100;max-width:calc(100vw - 32px);text-align:center}
.toast.is-show{opacity:1;transform:translate(-50%,0)}
@keyframes pop{from{opacity:0;transform:scale(.97)}to{opacity:1;transform:none}}

@media (max-width:960px){
  .mk{grid-template-columns:minmax(0,1fr)}
  .stage-wrap{position:static}
  .panel{border-left:none;border-top:1px solid var(--line)}
}
@media (max-width:640px){
  .stage-wrap{padding:16px}
  .stage{min-height:300px;padding:16px;border-radius:14px}
  .group{padding:18px 16px}
  .stage-tip{display:none}
  .actions{width:100%}
  .actions .btn{flex:1}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
}

/* 직접 입력칸: 단위(px·%·°)는 흐리게, 숫자는 본문색 */
.tb-num-wrap .tb-num{color:var(--ink)}

/* 다크 모드 (인쇄는 라이트 그대로). 미리보기 캔버스·내보내는 PNG는 그대로, 투명 체커도 밝게 둠 */
@media screen{
  :root[data-theme="dark"]{
    color-scheme:dark;
    --bg:#141312; --surface:#191817; --panel:#1e1d1b; --panel-soft:#232220;
    --ink:#eceae6; --ink-hover:#ffffff; --ink-2:#c9c6c0; --sub:#a29e97; --muted:#8c8881;
    --line:#2f2d2a; --line-2:#3a3835; --line-3:#272523; --hover:#2a2826; --soft:#272523; --track:#353330;
    --accent:#ff7652; --accent-soft:rgba(255,118,82,.15);
  }
  :root[data-theme="dark"] .btn--solid,:root[data-theme="dark"] .toast,:root[data-theme="dark"] .chip.is-active,:root[data-theme="dark"] .tb-presets button[aria-pressed="true"],:root[data-theme="dark"] .drop-hint span{color:var(--bg)}
  :root[data-theme="dark"] .btn--solid{background:var(--accent)}
  :root[data-theme="dark"] .btn--solid:hover,:root[data-theme="dark"] .btn--accent:hover{background:#ff9578}
  :root[data-theme="dark"] .stage{background-color:#1a1918;background-image:radial-gradient(circle,#34322f 1px,transparent 1.2px)}
  :root[data-theme="dark"] .stage.is-transparent{background-color:#fff;background-image:linear-gradient(45deg,#ecebe6 25%,transparent 25%),linear-gradient(-45deg,#ecebe6 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#ecebe6 75%),linear-gradient(-45deg,transparent 75%,#ecebe6 75%)}
  :root[data-theme="dark"] .frame-opt.is-active{color:#ffb39e}
  :root[data-theme="dark"] .fi-none{border-color:#6d6a64}
  :root[data-theme="dark"] .fi-dark{border-color:#55565a}
  :root[data-theme="dark"] .fi-phone{border-color:#8a8b90}
  :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"] .swatches button{border-color:rgba(255,255,255,.18)}
  :root[data-theme="dark"] .grads button{border-color:rgba(255,255,255,.1)}
}