/* ✍ 변정득 · 옆커폰 · since 2026 */
:root{
  --p-900:#60489D; --p-700:#7B5FB6; --p-400:#9484BE;
  --p-line:#E5DFF1; --p-bg1:#EFEAF6; --p-bg2:#F6F3FC;
  --ink:#2B2A35; --ink-2:#4a4954; --gray:#6E6B7B; --line:#E4E2EA;
  --bg:#F4F3F7; --white:#fff;
  --sh1:0 1px 2px rgba(43,42,53,.06); --sh2:0 6px 20px rgba(96,72,157,.12);
  --r:10px;
}
*{box-sizing:border-box}
html,body{height:100%;margin:0;background:var(--bg);color:var(--ink);
  font:14px/1.5 -apple-system,"Malgun Gothic","Apple SD Gothic Neo",sans-serif;overflow:hidden}
button,input,select,textarea{font:inherit;color:inherit}
#app{height:100%;display:grid;
  grid-template-columns:232px 1fr 264px;
  grid-template-rows:48px 1fr 28px;
  grid-template-areas:"top top top" "left stage right" "status status status"}

/* 상단 */
#topbar{grid-area:top;display:flex;align-items:center;gap:16px;padding:0 16px;background:var(--white);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:8px}
.brand-mark{width:7px;height:24px;border-radius:2px;background:var(--p-900)}
.proj-name{border:1px solid transparent;border-radius:8px;padding:4px 8px;font-weight:700;font-size:16px;width:160px;background:transparent}
.proj-name:hover,.proj-name:focus{border-color:var(--line);background:var(--white);outline:none}
.top-group{display:flex;align-items:center;gap:4px}
.top-group.right{margin-left:auto}
.sep{width:1px;height:20px;background:var(--line);margin:0 8px}
.tb{height:32px;padding:0 12px;border:1px solid var(--line);background:var(--white);border-radius:8px;cursor:pointer;white-space:nowrap}
.tb:hover{background:var(--p-bg2);border-color:var(--p-line)}
.tb:disabled{opacity:.4;cursor:default}
.tb.primary{background:var(--p-900);color:#fff;border-color:var(--p-900);font-weight:600}
.tb.primary:hover{background:var(--p-700)}
.tb.danger{color:#b3261e}
.zoom-label{min-width:52px;text-align:center;cursor:pointer;color:var(--ink-2)}
.chk{display:inline-flex;align-items:center;gap:4px;padding:0 8px;height:32px;cursor:pointer;color:var(--ink-2);user-select:none}
.chk input{accent-color:var(--p-900)}

/* 왼쪽 */
#left{grid-area:left;display:flex;flex-direction:column;background:var(--white);border-right:1px solid var(--line);min-height:0}
.tools{display:grid;grid-template-columns:repeat(5,1fr);gap:4px;padding:8px;border-bottom:1px solid var(--line)}
.tool{display:flex;flex-direction:column;align-items:center;gap:2px;padding:6px 0;border:1px solid transparent;border-radius:8px;background:none;cursor:pointer;color:var(--ink-2)}
.tool i{font-style:normal;font-size:16px;line-height:1}
.tool span{font-size:11px}
.tool:hover{background:var(--p-bg2)}
.tool.active{background:var(--p-bg1);border-color:var(--p-line);color:var(--p-900);font-weight:600}
.lib{display:flex;flex-direction:column;min-height:0;flex:1}
.lib-head{padding:8px}
.lib-head input{width:100%;height:32px;padding:0 10px;border:1px solid var(--line);border-radius:8px}
.lib-head input:focus{outline:2px solid var(--p-line);border-color:var(--p-400)}
.lib-cats{display:flex;flex-wrap:wrap;gap:4px;padding:0 8px 8px}
.cat{padding:2px 10px;border-radius:999px;border:1px solid var(--line);background:none;cursor:pointer;font-size:12px;color:var(--ink-2)}
.cat.active{background:var(--p-900);color:#fff;border-color:var(--p-900)}
.lib-list{overflow:auto;flex:1;padding:0 8px 8px;display:grid;grid-template-columns:1fr 1fr;gap:6px;align-content:start}
.fitem{border:1px solid var(--line);border-radius:8px;padding:6px;cursor:pointer;background:var(--white);display:flex;flex-direction:column;gap:4px}
.fitem:hover{border-color:var(--p-400);box-shadow:var(--sh1)}
.fitem.active{border-color:var(--p-900);background:var(--p-bg2)}
.fitem canvas{width:100%;height:56px;display:block;border-radius:4px;background:#FAFAFC}
.fitem b{font-size:12px;font-weight:600;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.fitem small{font-size:11px;color:var(--gray)}
.fitem.custom{border-style:dashed;align-items:center;text-align:center;justify-content:center}
.fitem.custom .plus{height:56px;display:flex;align-items:center;justify-content:center;font-size:28px;color:var(--p-900)}
.lib-foot{padding:8px;font-size:11px;color:var(--gray);border-top:1px solid var(--line)}

/* 도면 */
#stage{grid-area:stage;position:relative;min-width:0;min-height:0;background:#FAFAFC;display:flex}
#stage2d{position:relative;flex:1;min-width:0}
#view3d{flex:1;min-width:0;display:flex;flex-direction:column;border-left:1px solid var(--line);background:var(--bg)}
#stage.mode-2d #view3d{display:none}
#stage.mode-3d #stage2d{display:none}
#stage.mode-3d #view3d{border-left:0}
#cv{position:absolute;inset:0;width:100%;height:100%;display:block;touch-action:none}
#cv:focus{outline:2px solid var(--p-line);outline-offset:-2px}
#cv.c-cross{cursor:crosshair}#cv.c-grab{cursor:grab}#cv.c-grabbing{cursor:grabbing}#cv.c-move{cursor:move}
#cv.c-text{cursor:text}#cv.c-copy{cursor:copy}
.hint{position:absolute;left:12px;top:12px;padding:6px 12px;background:rgba(255,255,255,.92);border:1px solid var(--line);border-radius:8px;font-size:12px;color:var(--ink-2);pointer-events:none;box-shadow:var(--sh1)}
.hint:empty{display:none}
.toast{position:absolute;left:50%;bottom:16px;transform:translateX(-50%);padding:8px 16px;background:var(--ink);color:#fff;border-radius:8px;font-size:13px;opacity:0;transition:opacity .2s;pointer-events:none}
.toast.on{opacity:.95}

/* 오른쪽 속성 */
#right{grid-area:right;background:var(--white);border-left:1px solid var(--line);overflow:auto}
#props{padding:12px}
.ph{font-weight:700;color:var(--p-900);border-left:4px solid var(--p-900);padding-left:8px;margin:4px 0 12px;font-size:14px}
.pg{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:8px}
.pg.one{grid-template-columns:1fr}
.fld{display:flex;flex-direction:column;gap:2px;font-size:12px;color:var(--gray)}
.fld span{font-size:11px}
.fld input,.fld select,.fld textarea{height:30px;padding:0 8px;border:1px solid var(--line);border-radius:6px;color:var(--ink);background:var(--white);width:100%}
.fld textarea{height:auto;padding:6px 8px;resize:vertical}
.fld input:focus,.fld select:focus,.fld textarea:focus{outline:2px solid var(--p-line);border-color:var(--p-400)}
.fld input[type=color]{padding:2px;height:30px}
.fld input[type=checkbox]{width:auto;height:auto;accent-color:var(--p-900)}
.fld.chkf{flex-direction:row;align-items:center;gap:6px;height:30px}
.fld.chkf span{font-size:12px;color:var(--ink-2)}
.row{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}
.row.right{justify-content:flex-end}
.row .tb{height:28px;padding:0 10px;font-size:12px}
.row .lbl{font-size:11px;color:var(--gray);align-self:center;margin-right:2px}
.ph2{font-weight:600;color:var(--ink-2);margin:12px 0 4px;font-size:12px;border-top:1px solid var(--line);padding-top:10px}
.muted{color:var(--gray)}
.small{font-size:12px}
.pinfo{font-size:12px;color:var(--ink-2);line-height:1.7}
.pinfo b{color:var(--ink)}
.swatches{display:flex;gap:4px;flex-wrap:wrap;margin-top:4px}
.sw{width:22px;height:22px;border-radius:6px;border:1px solid rgba(0,0,0,.08);cursor:pointer}
.sw:hover{outline:2px solid var(--p-400)}
.sw.big{width:44px;height:44px;border-radius:8px;flex:none;cursor:default}
.fin{border:1px solid var(--line);border-radius:10px;padding:8px;margin-bottom:8px}
.fin-row{display:flex;gap:8px;align-items:center;margin-top:6px}
.fin-info{font-size:12px;line-height:1.4;min-width:0;flex:1}
.fin-info input{width:100%;height:28px;padding:0 8px;border:1px solid var(--line);border-radius:6px}

/* 하단 */
#status{grid-area:status;display:flex;align-items:center;gap:24px;padding:0 16px;font-size:12px;color:var(--ink-2);background:var(--white);border-top:1px solid var(--line);white-space:nowrap;overflow:hidden}
#stKeys{margin-left:auto}

/* 3D */
.v3-bar{height:40px;display:flex;align-items:center;gap:8px;padding:0 8px;background:var(--white);border-bottom:1px solid var(--line);flex-wrap:nowrap;overflow:hidden}
.v3-bar .tb{height:28px;padding:0 10px;font-size:12px}
.v3-bar .chk{height:28px;font-size:12px}
.v3num{display:inline-flex;align-items:center;gap:4px;font-size:11px;color:var(--gray)}
.v3num input{width:58px;height:26px;padding:0 6px;border:1px solid var(--line);border-radius:6px;font-size:12px}
.v3-group{display:flex;align-items:center;gap:4px}
.v3-group.right{margin-left:auto}
.v3-body{flex:1;position:relative;min-height:0}
.v3-canvas{position:absolute;inset:0}
.v3-canvas canvas{display:block;touch-action:none}
.v3-canvas.c-move canvas{cursor:move}
.v3-hint{right:12px;left:auto;top:auto;bottom:12px;max-width:calc(100% - 24px);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.v3-msg{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:var(--gray);text-align:center;padding:24px}
.ai-panel{position:absolute;top:0;right:0;bottom:0;width:340px;max-width:100%;background:var(--white);border-left:1px solid var(--line);padding:16px;overflow:auto;display:flex;flex-direction:column;gap:10px;box-shadow:var(--sh2)}
.ai-panel[hidden]{display:none}
.ai-panel h3{margin:0;font-size:16px;color:var(--p-900)}
.ai-panel p{margin:0}
.ai-status{font-size:12px;color:var(--ink-2);white-space:pre-wrap;word-break:break-all;min-height:18px}
.ai-status.err{color:#b3261e}
.ai-result img{width:100%;border-radius:8px;border:1px solid var(--line);display:block}
.ai-result .row{margin-top:6px}
.ai-hist{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin-top:8px}
.ai-hist img{cursor:pointer}
/* 화면 모드 3단 */
.seg{display:inline-flex;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.seg button{height:30px;padding:0 12px;border:0;background:var(--white);cursor:pointer;color:var(--ink-2)}
.seg button+button{border-left:1px solid var(--line)}
.seg button.on{background:var(--p-900);color:#fff;font-weight:600}

/* 도면 읽기 */
.read-prev{margin:8px 0;max-height:260px;overflow:hidden;border-radius:8px;border:1px solid var(--line);background:var(--bg)}
.read-prev img{width:100%;height:auto;display:block;max-height:260px;object-fit:contain}
.read-prev:has(img[hidden]){display:none}
.fld input[type=range]{padding:0;height:30px}

/* 내 도면 */
.saved-list{max-height:50vh;overflow:auto;display:flex;flex-direction:column;gap:6px;margin-top:12px}
.saved{display:flex;align-items:center;justify-content:space-between;gap:8px;border:1px solid var(--line);border-radius:10px;padding:8px 10px}
.saved.auto{background:var(--p-bg2)}
.saved-info{min-width:0}
.saved-info b{display:block;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.saved-info small{color:var(--gray);font-size:11px}

/* 모달 */
.modal{position:fixed;inset:0;background:rgba(43,42,53,.35);z-index:60;display:flex;align-items:center;justify-content:center}
.modal[hidden]{display:none}
.modal-box{width:560px;max-width:calc(100% - 32px);background:var(--white);border-radius:16px;padding:24px;box-shadow:var(--sh2)}
.modal-box h3{margin:0 0 4px;color:var(--p-900)}
.tpl-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:16px}
.tpl{border:1px solid var(--line);border-radius:10px;padding:12px;cursor:pointer;background:var(--white)}
.tpl:hover{border-color:var(--p-900);background:var(--p-bg2)}
.tpl b{display:block;font-size:14px}
.tpl small{color:var(--gray);font-size:12px}
.tpl .dims{display:flex;gap:6px;margin-top:8px;align-items:center;font-size:12px;color:var(--gray)}
.tpl .dims input{width:64px;height:28px;padding:0 6px;border:1px solid var(--line);border-radius:6px}

@media (max-width:960px){
  #app{grid-template-columns:200px 1fr 0}
  #right{display:none}
}