/* =========================================================
   app.css — 版面、頂列、側邊欄、真值表、選單
   （畫布與元件外觀請見 circuit.css）
   ========================================================= */
:root{
  --bg:#0b0f17;
  --panel:#141b2b;
  --panel-2:#1a2334;
  --line:#26314a;
  --line-soft:#1e2739;
  --txt:#dbe3f4;
  --txt-dim:#8b98b5;
  --txt-faint:#5d6b8a;
  --accent:#4ea1ff;
  --hot:#ffc247;            /* 高電位 1 */
  --hot-soft:#ffd98a;
  --cold:#4a5876;           /* 低電位 0 */
  --glow:0 0 6px rgba(255,194,71,.85), 0 0 14px rgba(255,170,40,.45);
  --flow-dur:1.15s;         /* 訊號流動動畫週期（由播放速度控制） */
  /* 框選與接腳用的十字游標：系統藍 + 深色描邊，壓在亮色導線上也看得清 */
  --cursor-cross:url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20width='24'%20height='24'%3E%3Cg%20fill='none'%20stroke-linecap='round'%3E%3Cpath%20d='M12%203v6M12%2015v6M3%2012h6M15%2012h6'%20stroke='%230b0f17'%20stroke-width='4'/%3E%3Cpath%20d='M12%203v6M12%2015v6M3%2012h6M15%2012h6'%20stroke='%234ea1ff'%20stroke-width='1.8'/%3E%3C/g%3E%3Ccircle%20cx='12'%20cy='12'%20r='1.4'%20fill='%234ea1ff'/%3E%3C/svg%3E") 12 12, crosshair;
  --left-w:190px;           /* 側邊欄寬度（可拖曳調整） */
  --right-w:330px;          /* 右側面板寬度 */
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--txt);
  font-family:"Segoe UI","Noto Sans TC","Microsoft JhengHei",system-ui,sans-serif;
  font-size:14px;
  overflow:hidden;
  -webkit-font-smoothing:antialiased;
  user-select:none;                    /* 畫布拖曳時不要選到文字 */
  -webkit-user-select:none;
}
#truth-panel{user-select:text;-webkit-user-select:text}   /* 真值表保留可複製 */
#stage,#palette,#topbar,.comp,.comp *,.gsvg,.gsvg *{
  -webkit-user-drag:none;user-select:none;-webkit-user-select:none;
}
button{font-family:inherit;color:inherit}

/* ================= 頂列 ================= */
#topbar{
  height:52px;display:flex;align-items:center;gap:28px;padding:0 16px 0 22px;
  background:linear-gradient(180deg,#161e30,#111827);
  border-bottom:1px solid var(--line);
  position:relative;z-index:30;
}
.brand{font-weight:700;letter-spacing:.5px;white-space:nowrap}
.brand .logo{color:var(--hot);text-shadow:var(--glow);margin-right:4px}
.btn-group{display:flex;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:8px;overflow:hidden}
.btn-group .btn{border:0;border-radius:0}
.btn{
  background:var(--panel-2);border:1px solid var(--line);border-radius:7px;
  padding:6px 11px;font-size:12.5px;cursor:pointer;transition:.15s;white-space:nowrap;
}
.btn:hover{background:#233150;border-color:#3a4b70}
.btn.ico{padding:6px 10px;font-size:15px;line-height:1}
.btn:disabled{opacity:.35;cursor:not-allowed}
.btn:disabled:hover{background:var(--panel-2);border-color:var(--line)}
.btn.danger:hover{background:#3a1e26;border-color:#6d3140;color:#ffb3b3}

/* 語言切換：兩顆窄鈕，選中的那顆用主色實心 */
#lang-sw .btn{
  padding:6px 9px;font-size:11.5px;font-weight:700;letter-spacing:.4px;
  color:var(--txt-faint);min-width:32px;
}
#lang-sw .btn:hover{color:var(--txt)}
#lang-sw .btn.on{background:var(--accent);border-color:var(--accent);color:#08111f}
#lang-sw .btn.on:hover{background:var(--accent)}

/* ================= 版面 ================= */
#app{
  display:grid;
  grid-template-columns:var(--left-w) 5px minmax(0,1fr) 5px var(--right-w);
  height:calc(100vh - 52px);
}
@media (max-width:1280px){
  :root{--left-w:170px;--right-w:290px}
}
@media (max-width:960px){
  :root{--left-w:140px;--right-w:240px}
  .pal-item{padding:5px 7px;gap:6px}
  .pal-item .gsvg{width:44px;height:28px}
  .pal-note{display:none}
}

/* 欄位分隔條 */
.splitter{
  background:var(--line);cursor:col-resize;position:relative;z-index:20;
  transition:background .15s;
}
.splitter::after{content:'';position:absolute;top:0;bottom:0;left:-4px;right:-4px}
.splitter:hover,.splitter.active{background:var(--accent)}
/* 收合鈕 */
.splitter .collapse{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:14px;height:34px;padding:0;z-index:2;
  background:var(--panel-2);color:var(--txt-faint);
  border:1px solid var(--line);border-radius:4px;
  font-size:11px;line-height:1;cursor:pointer;transition:.14s;
}
.splitter .collapse:hover{background:var(--accent);color:#08111f;border-color:var(--accent)}
/* 收合時要保留 grid 項目（用 display:none 會讓後面的欄位整排前移），
   所以改成寬度 0 並裁掉內容 */
#app.no-left #palette,#app.no-right #truth-panel{
  overflow:hidden;visibility:hidden;padding:0;border:0;min-width:0;
}
#app.no-left{--left-w:0px}
#app.no-right{--right-w:0px}
body.resizing{cursor:col-resize}
body.resizing *{pointer-events:none}
body.resizing .splitter{pointer-events:auto}

/* ================= 側邊欄（抽屜） ================= */
#palette{
  background:var(--panel);border-right:1px solid var(--line);
  padding:8px;overflow-y:auto;
}
.pal-group{border-bottom:1px solid var(--line-soft)}
.pal-head{
  display:flex;align-items:center;gap:7px;width:100%;
  background:transparent;border:0;cursor:pointer;
  padding:9px 6px;font-size:12px;font-weight:700;letter-spacing:.5px;
  color:var(--txt-dim);transition:.14s;
}
.pal-head:hover{color:var(--txt)}
.pal-head .chev{
  display:inline-block;font-size:10px;color:var(--txt-faint);
  transition:transform .18s;transform-origin:50% 50%;
}
.pal-group.open .pal-head .chev{transform:rotate(90deg)}
.pal-head .nm{flex:1;text-align:left}
/* 分類的元件數量：不要底框，純數字。
   字體挑 DIN 風格的窄體數字（Windows 內建 Bahnschrift），
   等寬數字讓各分類的數字對得整齊。 */
.pal-head .num{
  font-family:"Bahnschrift","Bahnschrift SemiCondensed","DIN Alternate",
              "Segoe UI Variable Display","Segoe UI",system-ui,sans-serif;
  font-size:15px;font-weight:600;line-height:1;
  color:#5f6d8d;
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum" 1;
  letter-spacing:.4px;
  min-width:15px;text-align:right;padding-right:3px;
  transition:color .14s;
}
.pal-head:hover .num{color:#95a5c6}
.pal-group.open .pal-head .num{color:#7d8cb0}
.pal-list{
  display:none;flex-direction:column;gap:5px;padding:0 2px 10px;
}
.pal-group.open .pal-list{display:flex}
.pal-item{
  display:flex;align-items:center;gap:9px;
  background:var(--panel-2);border:1px solid var(--line-soft);border-radius:9px;
  padding:5px 9px;cursor:grab;transition:.14s;
}
.pal-item:hover{border-color:var(--accent);background:#1d2942;transform:translateX(2px)}
.pal-item:active{cursor:grabbing}
.pal-item .gsvg{width:52px;height:32px;flex:none}
.pal-item .nm{font-size:12px;font-weight:600;letter-spacing:.3px;line-height:1.25}
.pal-note{
  margin-top:14px;font-size:11.5px;line-height:1.75;color:var(--txt-faint);
  border-top:1px dashed var(--line);padding:12px 6px 0;
}
.pal-note b{color:var(--txt-dim)}

/* ================= 底部工具列 ================= */
#mode-bar{
  position:absolute;left:50%;bottom:14px;transform:translateX(-50%);
  display:flex;align-items:center;gap:3px;z-index:11;
  background:rgba(20,27,43,.94);border:1px solid var(--line);
  border-radius:9px;padding:3px;
}
#mode-bar button{
  display:flex;align-items:center;gap:5px;
  border:0;background:transparent;border-radius:6px;
  padding:5px 10px;font-size:12px;cursor:pointer;color:var(--txt-dim);transition:.14s;
}
#mode-bar button .ic{font-size:12px;line-height:1}
#mode-bar button:hover{background:#26314a;color:var(--txt)}
#mode-bar button.on{background:var(--accent);color:#08111f;font-weight:700}
#mode-bar #btn-play.on{background:var(--hot);color:#2a1c02}
#mode-bar #btn-reset .ic{font-size:14px}
#tm-watch{
  display:flex;align-items:center;gap:7px;width:100%;
  color:var(--accent);
}
#tm-watch b{color:var(--txt)}
#tm-watch button{
  border:1px solid var(--line);background:var(--panel-2);border-radius:5px;
  padding:2px 8px;font-size:11px;cursor:pointer;color:var(--txt-dim);transition:.13s;
}
#tm-watch button:hover{background:#2c3a5c;color:var(--txt);border-color:#3a4b70}
#mode-bar .bar-sep{width:1px;height:18px;background:var(--line);margin:0 4px}
#mode-bar .speeds{display:flex;gap:1px}
#mode-bar .speeds button{padding:5px 7px;font-size:11.5px;min-width:24px;justify-content:center}

#zoom-ctl{
  position:absolute;right:14px;bottom:14px;display:flex;align-items:center;gap:2px;
  background:rgba(20,27,43,.9);border:1px solid var(--line);border-radius:8px;
  padding:3px;z-index:10;
}
#zoom-ctl button{
  width:26px;height:24px;border:0;background:transparent;border-radius:5px;
  cursor:pointer;font-size:14px;line-height:1;
}
#zoom-ctl button:hover{background:#26314a}
#zoom-val{font-size:11.5px;color:var(--txt-dim);width:44px;text-align:center;font-variant-numeric:tabular-nums}

/* 提示訊息：畫布下方正中央、播放列的上面（不會被播放列或右下角的縮放鈕擋住） */
#status-bar{
  position:absolute;left:50%;bottom:58px;z-index:12;width:max-content;max-width:min(640px,calc(100% - 120px));
  font-size:12px;line-height:1.5;color:var(--accent);background:rgba(20,27,43,.96);text-align:center;
  border:1px solid var(--line);border-radius:8px;padding:6px 12px;box-shadow:0 6px 18px rgba(0,0,0,.35);
  opacity:0;transform:translate(-50%,6px);transition:.2s;pointer-events:none;
}
#status-bar.show{opacity:1;transform:translate(-50%,0)}
#status-bar.err{color:#ffc4c4;background:rgba(62,20,30,.96);border-color:#8a3342}

/* ================= 右鍵選單 ================= */
#ctxmenu{
  position:fixed;display:none;z-index:200;min-width:172px;
  background:#1b2439;border:1px solid #35456b;border-radius:9px;
  padding:4px;box-shadow:0 10px 28px rgba(0,0,0,.6);
}
#ctxmenu button{
  display:flex;align-items:center;gap:9px;width:100%;
  border:0;background:transparent;border-radius:6px;
  padding:7px 10px;font-size:13px;cursor:pointer;text-align:left;transition:.1s;
}
#ctxmenu button:hover{background:#2c3a5c}
#ctxmenu button.danger:hover{background:#5c2330;color:#ffb3b3}
#ctxmenu button .ic{width:15px;text-align:center;opacity:.85;font-size:12px}
#ctxmenu button .k{margin-left:auto;font-size:11px;color:var(--txt-faint);letter-spacing:.3px}
#ctxmenu .ctx-sep{height:1px;background:#2c3a5c;margin:4px 6px}

/* 原地切換元件的小浮動視窗 */
#swapmenu{
  position:fixed;display:none;z-index:210;
  background:#1b2439;border:1px solid #35456b;border-radius:10px;
  padding:8px;box-shadow:0 12px 32px rgba(0,0,0,.65);
}
#swapmenu .hd{
  display:flex;align-items:center;gap:8px;
  font-size:11px;font-weight:700;letter-spacing:1px;color:var(--txt-faint);
  padding:2px 4px 8px;
}
#swapmenu .hd .back{
  background:var(--panel-2);border:1px solid var(--line);border-radius:5px;
  color:var(--txt-dim);font-size:11px;padding:3px 8px;cursor:pointer;
  letter-spacing:0;font-weight:600;transition:.13s;
}
#swapmenu .hd .back:hover{background:#2c3a5c;color:var(--txt);border-color:#3a4b70}
#swapmenu .grid{display:grid;grid-template-columns:repeat(2,1fr);gap:4px}
#swapmenu .grid button{
  display:flex;align-items:center;gap:7px;
  background:var(--panel-2);border:1px solid var(--line-soft);border-radius:8px;
  padding:4px 8px 4px 4px;cursor:pointer;transition:.13s;text-align:left;
}
#swapmenu .grid button:hover{border-color:var(--accent);background:#1d2942}
#swapmenu .grid button.on{border-color:var(--hot);background:#2a2413}
#swapmenu .grid button.on span{color:var(--hot-soft)}
#swapmenu .grid .gsvg{width:44px;height:28px;flex:none}
#swapmenu .grid span{font-size:12px;font-weight:600;line-height:1.2}
#swapmenu .ft{font-size:10.5px;color:var(--txt-faint);padding:8px 4px 0;text-align:center}

/* ================= 真值表 ================= */
#truth-panel{
  background:var(--panel);border-left:1px solid var(--line);
  display:flex;flex-direction:column;min-height:0;
}
/* 分頁 */
.panel-tabs{display:flex;border-bottom:1px solid var(--line);flex:none}
.panel-tabs button{
  flex:1;background:transparent;border:0;cursor:pointer;
  padding:12px 8px 10px;font-size:12.5px;font-weight:700;letter-spacing:1px;
  color:var(--txt-faint);border-bottom:2px solid transparent;transition:.14s;
}
.panel-tabs button:hover{color:var(--txt-dim)}
.panel-tabs button.on{color:var(--txt);border-bottom-color:var(--accent)}
.panel-view{display:flex;flex-direction:column;flex:1;min-height:0}
.panel-view[hidden]{display:none}

/* ===== 布林式 ===== */
#bl-info{
  padding:10px 16px;font-size:12px;color:var(--txt-faint);line-height:1.7;
  border-bottom:1px solid var(--line-soft);flex:none;
}
#bl-info b{color:var(--txt-dim)}
#bl-info .dim{opacity:.75}
#bl-body{flex:1;overflow:auto;min-height:0;padding:4px 0 14px}
.bl-sec{padding:10px 16px 4px}
.bl-sec+.bl-sec{border-top:1px solid var(--line-soft);margin-top:6px}
.bl-sec h3{
  margin:0 0 8px;font-size:11.5px;font-weight:700;letter-spacing:1px;
  color:var(--txt-dim);display:flex;align-items:baseline;gap:8px;
}
.bl-sec h3 span{font-size:10.5px;font-weight:400;letter-spacing:0;color:var(--txt-faint)}
.bl-eq{
  display:flex;align-items:baseline;gap:7px;padding:5px 0;
  font-size:13.5px;line-height:1.9;
  border-bottom:1px solid rgba(38,49,74,.4);
}
.bl-eq:last-child{border-bottom:0}
.bl-eq .lhs{color:var(--hot-soft);font-weight:700;flex:none;min-width:24px}
.bl-eq .eq{color:var(--txt-faint);flex:none}
.bl-eq .rhs{color:#dde7fb;word-break:break-word}
.bl-eq .rhs i{font-style:normal;color:#9ecbff;font-weight:600}
.bl-eq .rhs b{color:var(--txt-faint);font-weight:400;padding:0 1px}
.bl-eq .rhs .ovl{text-decoration:overline;text-decoration-thickness:1px;padding-top:1px}
.bl-eq .rhs .dim{color:var(--txt-faint)}
.bl-eq .mt{
  display:block;font-size:11px;color:var(--txt-faint);
  font-variant-numeric:tabular-nums;margin-top:2px;
}
.bl-empty,.bl-warn{padding:14px 16px;font-size:12.5px;color:var(--txt-faint);line-height:1.8}
.bl-warn{color:#ffb454}

/* ===== 時序圖 ===== */
#tm-info{
  padding:10px 16px;font-size:12px;color:var(--txt-faint);line-height:1.7;
  border-bottom:1px solid var(--line-soft);flex:none;
}
#tm-info .warn{color:#ffb454}
#tm-info .dim{opacity:.8}
#tm-info b{color:var(--txt-dim)}
#tm-scroll{flex:1;overflow:auto;min-height:0}
#tm-scroll.empty{
  display:flex;align-items:center;justify-content:center;padding:24px;
}
#tm-scroll.empty::before{
  content:attr(data-msg);white-space:pre-line;text-align:center;
  color:var(--txt-faint);font-size:12.5px;line-height:1.9;
}
#tm-wave{padding:8px 4px 2px}
.tm-svg{display:block}
.tm-grid{stroke:#212b42;stroke-width:1}
.tm-cursor{fill:rgba(255,214,110,.14)}
.tm-num{fill:var(--txt-faint);font-size:9px;text-anchor:middle;font-variant-numeric:tabular-nums}
.tm-num.now{fill:var(--hot);font-weight:700}
.tm-lbl{
  fill:var(--txt-dim);font-size:10px;font-weight:600;text-anchor:end;
  dominant-baseline:central;
}
.tm-lbl.clk{fill:var(--accent)}
.tm-trace{fill:none;stroke:#8fa4cc;stroke-width:1.8;stroke-linejoin:round}
.tm-trace.clk{stroke:var(--accent)}
.tm-trace.out{stroke:var(--hot);filter:drop-shadow(0 0 4px rgba(255,194,71,.6))}

#tm{width:100%;border-collapse:separate;border-spacing:0;font-size:13px;
    font-variant-numeric:tabular-nums}
#tm th{
  position:sticky;top:0;z-index:2;background:#182034;
  padding:7px 6px;font-size:12px;font-weight:700;color:var(--txt-dim);
  border-bottom:1px solid var(--line);border-top:1px solid var(--line);letter-spacing:.5px;
}
#tm th.clk,#tm td.clk{color:var(--accent);font-weight:700}
#tm th.out{color:var(--hot-soft)}
#tm th.divider,#tm td.divider{border-left:1px solid var(--line)}
#tm td{padding:5px 6px;text-align:center;color:#93a3c4;
       border-bottom:1px solid rgba(38,49,74,.45)}
#tm td.one{color:#e8eefc;font-weight:600}
#tm td.out{color:#76839f}
#tm td.out.one{color:var(--hot);font-weight:700;
  text-shadow:0 0 7px rgba(255,194,71,.9)}
#tm tbody tr{cursor:pointer;transition:background .1s}
#tm tbody tr:hover{background:rgba(255,255,255,.075)}
#tm tbody tr.active{background:rgba(255,214,110,.15)}
#tm tbody tr.active td:first-child{box-shadow:inset 3px 0 0 rgba(255,194,71,.85)}

#tm-legend{
  border-top:1px solid var(--line-soft);padding:9px 16px;flex:none;
  display:flex;flex-wrap:wrap;gap:6px 12px;font-size:11.5px;color:var(--txt-faint);
  align-items:center;
}
#tm-legend .cycles{display:flex;align-items:center;gap:3px}
#tm-legend .cycles button{
  border:1px solid var(--line);background:var(--panel-2);border-radius:5px;
  padding:2px 7px;font-size:11px;cursor:pointer;color:var(--txt-faint);
}
#tm-legend .cycles button.on{background:var(--accent);color:#08111f;border-color:var(--accent);font-weight:700}
#tm-legend .click-tip{flex:1;min-width:100%;opacity:.85}
#tt-info{
  padding:10px 16px;font-size:12px;color:var(--txt-faint);line-height:1.7;
  border-bottom:1px solid var(--line-soft);
}
#tt-info .warn{color:#ffb454}
#tt-info .dim{color:var(--txt-faint);opacity:.8}
#tt-info b{color:var(--txt-dim)}
#tt-scroll{flex:1;overflow:auto;min-height:0}
#tt{width:100%;border-collapse:separate;border-spacing:0;font-variant-numeric:tabular-nums;font-size:13px}
#tt th{
  position:sticky;top:0;z-index:2;background:#182034;
  padding:8px 6px;font-size:12.5px;font-weight:700;color:var(--txt-dim);
  border-bottom:1px solid var(--line);letter-spacing:1px;
}
#tt th.out{color:var(--hot-soft)}
#tt th.named{color:#a9c4ee;font-weight:600;letter-spacing:0}
#tt th.divider,#tt td.divider{border-left:1px solid var(--line)}
#tt .ovl{text-decoration:overline}
#tt td{padding:6px;text-align:center;color:#93a3c4;border-bottom:1px solid rgba(38,49,74,.45)}
#tt td.one{color:#e8eefc;font-weight:600}
#tt td.out{color:#76839f}
#tt td.out.one{
  color:var(--hot);font-weight:700;
  text-shadow:0 0 7px rgba(255,194,71,.9),0 0 16px rgba(255,160,40,.5);
}
#tt tbody tr{cursor:pointer;transition:background .1s}
#tt tbody tr.active{background:rgba(255,214,110,.15)}
#tt tbody tr:hover{background:rgba(255,255,255,.075)}
#tt tbody tr.active:hover{background:rgba(255,220,120,.24)}
#tt tbody tr.active td:first-child{box-shadow:inset 3px 0 0 rgba(255,194,71,.85)}

.tt-empty{padding:26px 18px;color:var(--txt-faint);font-size:12.5px;line-height:1.9;text-align:center}
.tt-empty .big{font-size:30px;opacity:.3;display:block;margin-bottom:6px}

#tt-legend{
  border-top:1px solid var(--line-soft);padding:9px 16px;
  display:flex;flex-wrap:wrap;gap:6px 14px;font-size:11.5px;color:var(--txt-faint);
}
#tt-legend i{
  display:inline-block;width:11px;height:11px;border-radius:3px;
  vertical-align:-1px;margin-right:5px;border:1px solid var(--line);
}
#tt-legend i.sw-now{background:rgba(255,214,110,.35)}
#tt-legend i.sw-hover{background:rgba(255,255,255,.14)}
#tt-legend .click-tip{width:100%;opacity:.85}

/* ================= 捲軸 ================= */
::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:#2b364f;border-radius:5px}
::-webkit-scrollbar-thumb:hover{background:#3c4a6c}