/* แล็บไฟฟ้า — สนามซ้าย / กล่องอุปกรณ์ขวา บนจอกว้าง, ซ้อนกันบนจอเล็ก */
:root{
  --sans:'IBM Plex Sans Thai','Noto Sans Thai',system-ui,-apple-system,'Segoe UI',sans-serif;
  --ink:#191a24; --muted:#6b6c7e; --line:#e6e3dc; --surface:#fff; --bg:#f5f4ef;
  --brand:#2e7d88; --brand-ink:#1f5f68; --brand-soft:#dcecee;
  --ok:#129a72; --warn:#d68a17; --danger:#e2564a;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%;overflow:hidden}
body{font-family:var(--sans);color:var(--ink);background:var(--bg);display:flex;flex-direction:column;
  -webkit-font-smoothing:antialiased;user-select:none;-webkit-user-select:none}

/* ---------- เวที 3D ---------- */
#stage{position:relative;flex:1;min-height:0;background:#fff}
#webgl-canvas{width:100%;height:100%;display:block;touch-action:none}

.top-bar{
  position:absolute;left:12px;top:62px;z-index:6;display:flex;gap:6px;align-items:center;flex-wrap:wrap;
  background:rgba(255,255,255,.95);border:1px solid var(--line);border-radius:999px;
  padding:5px 8px;box-shadow:0 4px 14px rgba(25,26,36,.08);max-width:calc(100% - 24px);
}
.wb-select{font-family:inherit;font-size:.78rem;font-weight:600;color:var(--ink);
  border:1px solid var(--line);border-radius:999px;padding:5px 10px;background:var(--bg)}
.task-hint{font-size:.73rem;color:var(--muted);max-width:280px}

.status{
  position:absolute;left:12px;top:112px;right:12px;
  background:rgba(255,255,255,.95);border:1px solid var(--line);border-radius:12px;
  padding:8px 13px;font-size:.82rem;box-shadow:0 4px 14px rgba(25,26,36,.08);
  pointer-events:none;max-width:min(520px,calc(100% - 24px));line-height:1.5;
}
.status.ok{border-color:#bfe9da;color:#0a6b50;background:#f0fbf7}
.status.bad{border-color:#f6cdc9;color:#8f2018;background:#fdf3f2}
.status.warn{border-color:#f7e2bd;color:#7d5209;background:#fffaf0}

/* ---------- แผงวัด ---------- */
.meter{
  position:absolute;right:12px;top:12px;display:flex;gap:14px;
  background:rgba(255,255,255,.96);border:1px solid var(--line);border-radius:14px;
  padding:9px 14px;box-shadow:0 4px 14px rgba(25,26,36,.08);
}
.meter-item{display:flex;flex-direction:column;align-items:center;min-width:56px}
.meter-item b{font-size:1.05rem;font-variant-numeric:tabular-nums;line-height:1.2}
.meter-item span{font-size:.66rem;color:var(--muted)}
.meter.is-danger{border-color:#f6cdc9;background:#fdf3f2}
/* ต้องประกาศเอง — .meter{display:flex} มี specificity สูงกว่ากฎ [hidden] ของเบราว์เซอร์
   ไม่งั้นแผงวัดของอีกด่าน (home-meter) จะโผล่ทับแผงวัดด่านที่เปิดอยู่ */
.meter[hidden]{display:none}

.stage-foot{position:absolute;left:12px;right:12px;bottom:12px;display:flex;gap:8px;flex-wrap:wrap}
.btn{padding:10px 16px;border-radius:999px;border:1px solid transparent;font-family:inherit;
  font-size:.85rem;font-weight:600;cursor:pointer;box-shadow:0 2px 6px rgba(25,26,36,.12)}
.btn:active{transform:translateY(1px)}
.btn[disabled]{opacity:.45;pointer-events:none}
.btn-ghost{background:var(--surface);border-color:var(--line);color:var(--ink)}
.btn-submit{background:var(--ok);color:#fff;margin-left:auto}

/* ---------- กล่องอุปกรณ์ ---------- */
#panel{
  flex:none;background:var(--surface);border-top:1px solid var(--line);
  padding:12px 14px 14px;display:flex;flex-direction:column;gap:9px;max-height:46vh;overflow-y:auto;
}
.panel-head{display:flex;align-items:baseline;gap:10px}
.panel-title{font-weight:700;font-size:.92rem}
.goal{font-size:.78rem;color:var(--muted);margin-left:auto;text-align:right}
.hint{margin:0;font-size:.74rem;color:var(--muted)}

.parts-box{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:6px}
.part-btn{
  display:flex;align-items:center;gap:7px;padding:9px 10px;border:1px solid var(--line);
  border-radius:10px;background:var(--bg);font-family:inherit;cursor:pointer;text-align:left;min-height:44px;
}
.part-btn:hover{border-color:var(--brand);background:var(--brand-soft)}
.part-dot{width:14px;height:14px;border-radius:4px;flex:none;border:1px solid rgba(0,0,0,.12)}
.part-name{font-size:.8rem;font-weight:600}

/* ---------- รายการในวงจร ---------- */
.circuit-list,.tasks{display:flex;flex-direction:column;gap:5px}
.cl-head{font-size:.78rem;font-weight:600;color:var(--muted)}
.cl-head span{background:var(--brand-soft);color:var(--brand-ink);padding:1px 8px;border-radius:999px;font-size:.72rem}
.cl-items{
  border:1.5px dashed var(--line);border-radius:12px;padding:7px;
  display:flex;flex-direction:column;gap:5px;min-height:56px;max-height:190px;overflow-y:auto;
}
.cl-empty{margin:auto;color:#a0a1b0;font-size:.8rem}
.cl-item{
  display:flex;align-items:center;gap:8px;background:var(--bg);
  border-left:3px solid var(--brand);border-radius:8px;padding:6px 8px;font-size:.8rem;
}
.cl-item.is-burnt{border-left-color:var(--danger);opacity:.65}
.cl-item.is-on{border-left-color:var(--ok)}
.cl-item input[type=number]{
  width:74px;padding:4px 7px;border:1px solid var(--line);border-radius:7px;
  font-family:inherit;font-size:.78rem;background:#fff;
}
.cl-item .unit{font-size:.72rem;color:var(--muted)}
.cl-item .rm{margin-left:auto;border:none;background:transparent;color:#b9bac6;cursor:pointer;font-size:.9rem}
.cl-item .rm:hover{color:var(--danger)}
.sw-toggle{
  border:1px solid var(--line);background:#fff;border-radius:999px;padding:3px 10px;
  font-family:inherit;font-size:.72rem;cursor:pointer;
}
.sw-toggle.is-on{background:var(--ok);color:#fff;border-color:var(--ok)}

.task-list{display:flex;flex-direction:column;gap:4px}
.task-item{
  display:flex;align-items:center;gap:7px;font-size:.78rem;
  padding:6px 9px;border-radius:8px;background:var(--bg);
}
.task-item.is-done{background:#e9f8f2;color:#0a6b50}
.task-check{width:16px;height:16px;border-radius:50%;border:2px solid var(--line);flex:none}
.task-item.is-done .task-check{background:var(--ok);border-color:var(--ok)}

/* ---------- จอกว้าง ---------- */
@media (min-width:900px){
  body{flex-direction:row}
  #panel{width:330px;max-height:none;height:100%;border-top:none;border-left:1px solid var(--line);padding:16px}
}
/* ---------- จอเล็ก ---------- */
@media (max-width:560px){
  .level-tabs{position:static;margin:8px 12px 0;justify-content:center}
  .home-meter,.meter{position:static;margin:8px 12px;border-radius:14px;justify-content:space-between}
  .status{position:static;margin:0 12px 8px;max-width:none}
  .top-bar{position:static;margin:8px 12px;border-radius:14px}
  .stage-foot{position:static;padding:0 12px 10px}
  #stage{display:flex;flex-direction:column;min-height:52vh}
  #webgl-canvas{flex:1;min-height:180px}
  .btn-submit{margin-left:0;flex:1}
}

/* ============================================================
 * สลับด่าน + ด่านไฟฟ้าในบ้าน
 * ============================================================ */
.level-tabs{
  position:absolute;left:12px;top:12px;z-index:7;display:flex;gap:4px;
  background:rgba(255,255,255,.95);border:1px solid var(--line);border-radius:999px;
  padding:4px;box-shadow:0 4px 14px rgba(25,26,36,.08);
}
.level-tab{
  font-family:inherit;font-size:.8rem;font-weight:600;color:var(--muted);cursor:pointer;
  border:none;background:none;padding:6px 14px;border-radius:999px;min-height:34px;
}
.level-tab.is-active{background:var(--brand);color:#fff}

/* ปุ่มสลับภาษา — วางใต้แผงวัด (มุมขวาบน) ไม่ทับแท็บด่าน(ซ้าย)หรือแผงวัด(บน) */
.pg-lang.pin-um{position:absolute;top:66px;right:12px;z-index:20}
@media (max-width:560px){
  .pg-lang.pin-um{position:static;display:inline-flex;margin:8px 12px}
}

.home-meter{gap:12px}
.home-meter .meter-item{min-width:52px}
.hm-state{font-size:1.05rem;font-weight:700}
.hm-state.ok{color:var(--ok)}
.hm-state.bad{color:var(--danger)}

/* กล่องเลือกเครื่องใช้ไฟ */
.appl-box{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:6px}
.appl-btn{
  display:flex;flex-direction:column;align-items:flex-start;gap:1px;padding:8px 10px;
  border:1px solid var(--line);border-radius:10px;background:var(--bg);font-family:inherit;
  cursor:pointer;text-align:left;min-height:44px;
}
.appl-btn:hover{border-color:var(--brand);background:var(--brand-soft)}
.appl-ico{font-size:1rem;line-height:1}
.appl-name{font-size:.8rem;font-weight:600}
.appl-w{font-size:.68rem;color:var(--muted);font-variant-numeric:tabular-nums}

.breaker-pick{display:flex;align-items:center;gap:8px;font-size:.8rem;font-weight:600;color:var(--muted)}
.breaker-pick .wb-select{margin-left:auto}

.appl-row{
  display:flex;align-items:center;gap:8px;padding:7px 9px;border:1px solid var(--line);
  border-radius:10px;background:var(--bg);flex-wrap:wrap;
}
.appl-row b{font-size:.8rem;font-weight:600;flex:1;min-width:120px}
.appl-hours{display:flex;align-items:center;gap:4px;font-size:.72rem;color:var(--muted)}
.appl-hours input{width:52px;font-family:inherit;font-size:.8rem;text-align:center;
  border:1px solid var(--line);border-radius:8px;padding:4px 6px;background:#fff}
.appl-i{font-size:.74rem;color:var(--muted);font-variant-numeric:tabular-nums;min-width:52px;text-align:right}
.appl-row .rm{border:none;background:none;color:var(--muted);cursor:pointer;font-size:.9rem;padding:2px 4px}
.appl-row .rm:hover{color:var(--danger)}