/* ===== เขียนแบบแปลนงานไฟฟ้า — สไตล์ ===== */
:root{
  --bg:#f1f4f8;
  --panel:#ffffff;
  --line:#dde4ed;
  --ink:#17222f;
  --muted:#6b7a8c;
  --accent:#0f4c81;
  --accent2:#1668b3;
  --warn:#c2410c;
  --danger:#b91c1c;
  --ok:#15803d;
  --topbar:#12283f;
  --radius:9px;
  --font:"Leelawadee UI","Sarabun",Tahoma,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;font-family:var(--font);background:var(--bg);color:var(--ink);
  font-size:14px;overflow:hidden;
}
kbd{
  font-family:ui-monospace,Consolas,monospace;font-size:10.5px;
  background:#eef2f7;border:1px solid #cfd8e3;border-bottom-width:2px;
  border-radius:4px;padding:0 4px;color:#41546b;
}
#app{display:flex;flex-direction:column;height:100vh}

/* ---------- แถบบน ---------- */
.topbar{
  display:flex;align-items:center;gap:10px;padding:8px 12px;
  background:var(--topbar);color:#fff;flex:0 0 auto;flex-wrap:wrap;
  box-shadow:0 1px 4px rgba(10,25,45,.25);z-index:20;
}
.brand{font-weight:700;letter-spacing:.2px;white-space:nowrap;display:flex;align-items:center;gap:6px}
.brand .bolt{filter:drop-shadow(0 0 6px #ffd45e)}
.docname{
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  color:#fff;border-radius:7px;padding:6px 10px;width:230px;font-family:var(--font);font-size:13.5px;
}
.docname::placeholder{color:rgba(255,255,255,.55)}
.docname:focus{outline:2px solid #4d9de0;background:rgba(255,255,255,.18)}
.tgroup{display:flex;gap:5px;align-items:center}
.spacer{flex:1}

.btn{
  background:#fff;border:1px solid var(--line);color:var(--ink);
  border-radius:7px;padding:6px 11px;cursor:pointer;font-family:var(--font);font-size:13px;
  white-space:nowrap;transition:.12s;
}
.btn:hover{background:#eef4fb;border-color:#b9cde3}
.btn:active{transform:translateY(1px)}
.btn:disabled{opacity:.4;cursor:default}
.btn.icon{padding:6px 10px;font-size:15px;line-height:1}
.btn.primary{background:var(--accent2);border-color:var(--accent2);color:#fff;font-weight:600}
.btn.primary:hover{background:#1b7ad0}
.btn.danger{color:var(--danger);border-color:#f0c4c4}
.btn.danger:hover{background:#fdeeee}
.btn.sm{padding:5px 9px;font-size:12.5px}
.btn.xs{padding:3px 7px;font-size:12px}
.btn.file{position:relative;overflow:hidden}
.btn.file input{position:absolute;inset:0;opacity:0;cursor:pointer;font-size:100px}

/* ---------- แถบขั้นตอน ---------- */
.steps{
  display:flex;align-items:center;gap:4px;padding:7px 12px;flex:0 0 auto;flex-wrap:wrap;
  background:#fff;border-bottom:1px solid var(--line);
}
.step{
  display:flex;align-items:center;gap:6px;background:#f4f7fb;border:1px solid var(--line);
  border-radius:20px;padding:6px 15px;cursor:pointer;font-family:var(--font);
  font-size:13px;color:#54677e;transition:.13s;white-space:nowrap;
}
.step b{font-size:15px;line-height:1;color:#8ba2bd}
.step:hover{background:#e8f1fb;border-color:#a9c8e6;color:var(--accent)}
.step.on{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:700;
  box-shadow:0 2px 8px rgba(15,76,129,.28)}
.step.on b{color:#ffd45e}
.step.done{background:#eaf7ee;border-color:#bfe3cb;color:#2c6b41}
.step.done b{color:#2c6b41}
.steps .arw{font-style:normal;color:#b8c6d6;font-size:16px;padding:0 1px}
.stepspacer{flex:1}
.simplechk{font-size:12px;color:var(--muted)}

body.simple .adv{display:none !important}

/* ---------- โครงหลัก ---------- */
.main{flex:1;display:flex;min-height:0}

/* ---------- แผงซ้าย ---------- */
.left{
  width:238px;flex:0 0 238px;background:var(--panel);border-right:1px solid var(--line);
  display:flex;flex-direction:column;overflow:hidden;
}
.sect{border-bottom:1px solid var(--line);padding:8px 9px}
.sect.grow{flex:1;min-height:0;display:flex;flex-direction:column;padding-bottom:0}
.sect-h{font-size:11.5px;font-weight:700;color:var(--muted);letter-spacing:.4px;margin:2px 0 7px}

.tools{display:grid;grid-template-columns:1fr 1fr;gap:4px}
.tool-btn{
  display:flex;align-items:center;gap:6px;background:#f7f9fc;border:1px solid var(--line);
  border-radius:7px;padding:6px 6px;cursor:pointer;font-family:var(--font);font-size:11.5px;
  color:var(--ink);text-align:left;transition:.12s;
}
.tool-btn b{font-size:14px;width:17px;text-align:center;flex:0 0 auto}
.tool-btn span{line-height:1.15;overflow:hidden}
.tool-btn:hover{background:#e9f1fb;border-color:#b9cde3}
.tool-btn.on{background:var(--accent);border-color:var(--accent);color:#fff}
.tool-btn.on kbd{background:rgba(255,255,255,.2);border-color:rgba(255,255,255,.35);color:#fff}

.tool-btn.hi{background:#e8f3ff;border-color:#9cc6ec}
.tool-btn.hi:hover{background:#d9ebfd}
.tool-btn.hi.on{background:var(--accent);border-color:var(--accent)}

.opts{display:flex;flex-direction:column;gap:6px}
.fld{display:flex;align-items:center;gap:6px;font-size:12.5px}
.fld>span{flex:0 0 92px;color:var(--muted)}
.fld.sm>span{flex:0 0 84px;font-size:12px}
.fld input,.fld select,.fld textarea{
  flex:1;min-width:0;border:1px solid var(--line);border-radius:6px;padding:5px 7px;
  font-family:var(--font);font-size:12.5px;background:#fff;color:var(--ink);
}
.fld input:focus,.fld select:focus,.fld textarea:focus{outline:2px solid #9dc4ea;border-color:#9dc4ea}
.fld i{font-style:normal;color:var(--muted);font-size:11.5px;width:34px;text-align:right}
.fld textarea{resize:vertical;font-family:var(--font)}
.chk{display:flex;align-items:center;gap:6px;font-size:12.5px;cursor:pointer;color:#33445a}
.chk input{accent-color:var(--accent2)}
.row{display:flex;gap:6px;flex-wrap:wrap}
.mt{margin-top:9px}

/* ---------- คลังสัญลักษณ์ ---------- */
.symsearch{
  width:100%;border:1px solid var(--line);border-radius:7px;padding:6px 9px;margin-bottom:6px;
  font-family:var(--font);font-size:12.5px;background:#fbfdff;color:var(--ink);
}
.symsearch:focus{outline:2px solid #9dc4ea;border-color:#9dc4ea;background:#fff}
.recent{margin-bottom:7px}
.recent-h{font-size:10.5px;color:var(--muted);font-weight:700;margin:0 0 3px;letter-spacing:.3px}
.recent-b{display:grid;grid-template-columns:1fr 1fr;gap:3px}
.palette{overflow-y:auto;flex:1;padding-bottom:12px;margin-right:-3px;padding-right:3px}
.nohit{padding:10px 4px;color:var(--muted);font-size:12px;text-align:center}
.sgroup{margin-bottom:6px}
.sgroup-h{
  width:100%;display:flex;justify-content:space-between;align-items:center;
  background:#eef3f9;border:1px solid var(--line);border-radius:6px;padding:5px 8px;
  font-family:var(--font);font-size:12px;font-weight:600;color:#2c3e54;cursor:pointer;
}
.sgroup-h:hover{background:#e3ecf6}
.sgroup-h i{font-style:normal;transition:.15s;font-size:10px}
.sgroup.collapsed .sgroup-h i{transform:rotate(-90deg)}
.sgroup.collapsed .sgroup-b{display:none}
.sgroup-b{display:grid;grid-template-columns:1fr 1fr;gap:3px;padding:4px 0 2px}
.sym-btn{
  display:flex;flex-direction:column;align-items:center;gap:1px;
  background:#fff;border:1px solid var(--line);border-radius:6px;padding:3px 2px;
  cursor:pointer;font-family:var(--font);font-size:9.5px;color:#41546b;line-height:1.15;
  min-height:56px;justify-content:center;text-align:center;transition:.1s;
}
.sym-btn:hover{border-color:var(--accent2);background:#f2f8ff}
.sym-btn.on{border-color:var(--accent);background:#e3effb;box-shadow:0 0 0 2px #cfe3f8}
.sym-btn canvas{display:block}
.sym-btn span{max-height:24px;overflow:hidden}

/* ---------- พื้นที่วาด ---------- */
.cvwrap{flex:1;position:relative;min-width:0;background:#fff;overflow:hidden}
#cv{display:block;width:100%;height:100%;outline:none}
.cvwrap.dragover .dropnote{display:flex}
.dropnote{
  display:none;position:absolute;inset:14px;border:3px dashed var(--accent2);border-radius:14px;
  align-items:center;justify-content:center;background:rgba(226,240,254,.85);
  font-weight:700;color:var(--accent);font-size:17px;pointer-events:none;
}
.hud{
  position:absolute;left:10px;bottom:10px;display:flex;gap:12px;align-items:center;flex-wrap:wrap;
  background:rgba(255,255,255,.94);border:1px solid var(--line);border-radius:8px;
  padding:5px 11px;font-size:12px;color:#3c4d63;box-shadow:0 2px 8px rgba(20,40,70,.09);
  max-width:calc(100% - 20px);pointer-events:none;
}
.hud .hint{color:var(--accent);font-weight:600}
.hud .num{
  background:#12283f;color:#ffd45e;font-weight:700;border-radius:5px;
  padding:1px 8px;font-family:ui-monospace,Consolas,monospace;letter-spacing:.5px;
}

/* ---------- แถบลอยตอนเลือกวัตถุ ---------- */
.selbar{
  position:absolute;z-index:8;display:flex;gap:2px;padding:3px;
  background:#fff;border:1px solid #cbd8e6;border-radius:9px;
  box-shadow:0 4px 14px rgba(20,40,70,.18);
}
.selbar button{
  border:0;background:transparent;border-radius:6px;padding:4px 8px;cursor:pointer;
  font-size:15px;line-height:1.1;color:#2d4863;font-family:var(--font);
}
.selbar button:hover{background:#e8f2fd}
.selbar button.danger{color:var(--danger)}
.selbar button.danger:hover{background:#fdeeee}

/* ---------- เมนูคลิกขวา ---------- */
.ctxmenu{
  position:absolute;z-index:9;min-width:186px;padding:4px;
  background:#fff;border:1px solid #cbd8e6;border-radius:9px;
  box-shadow:0 8px 26px rgba(20,40,70,.22);
}
.ctxmenu button{
  display:block;width:100%;text-align:left;border:0;background:transparent;
  padding:6px 10px;border-radius:6px;cursor:pointer;font-family:var(--font);
  font-size:12.5px;color:#2d4863;white-space:nowrap;
}
.ctxmenu button:hover{background:#eef4fb}
.ctxmenu button.danger{color:var(--danger)}
.ctxmenu button.danger:hover{background:#fdeeee}
.ctxmenu hr{border:0;border-top:1px solid var(--line);margin:4px 2px}

/* ---------- หน้าจอเริ่มงาน ---------- */
.box.start{width:640px}
.starth{margin:0 0 4px;font-size:20px;color:var(--accent)}
.startgrid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:9px;margin:15px 0 4px}
.startcard{
  display:flex;flex-direction:column;align-items:center;gap:5px;text-align:center;
  background:#f7fafd;border:1px solid var(--line);border-radius:11px;padding:15px 10px;
  cursor:pointer;font-family:var(--font);color:var(--ink);transition:.13s;
}
.startcard:hover{background:#e9f2fc;border-color:var(--accent2);transform:translateY(-2px);
  box-shadow:0 6px 16px rgba(20,60,110,.13)}
.startcard b{font-size:26px;line-height:1}
.startcard span{font-size:13px;font-weight:600}
.startcard i{font-style:normal;font-size:11px;color:var(--muted);line-height:1.45}
.startsteps{
  margin-top:16px;background:#fbfcfe;border:1px solid var(--line);border-radius:9px;
  padding:11px 14px;font-size:12.5px;color:#455a72;
}
.startsteps>b{color:var(--accent);display:block;margin-bottom:5px}
.startsteps li b{color:#2d4863}
.startsteps ol{margin:0;padding-left:18px;line-height:1.9}

/* ---------- แผงขวา ---------- */
.right{
  width:302px;flex:0 0 302px;background:var(--panel);border-left:1px solid var(--line);
  display:flex;flex-direction:column;overflow:hidden;
}
.tabs{display:flex;border-bottom:1px solid var(--line);flex:0 0 auto}
.tabbtn{
  flex:1;background:#f4f7fb;border:0;border-right:1px solid var(--line);
  padding:9px 3px;font-family:var(--font);font-size:12px;color:var(--muted);cursor:pointer;
}
.tabbtn:last-child{border-right:0}
.tabbtn.on{background:#fff;color:var(--accent);font-weight:700;box-shadow:inset 0 -2px 0 var(--accent2)}
.tabpane{display:none;padding:11px 12px;overflow-y:auto;flex:1}
.tabpane.on{display:block}
.right h3{margin:0 0 9px;font-size:13.5px;color:var(--accent)}
.right h3.mt{margin-top:16px}
.right h4{margin:14px 0 6px;font-size:12.5px;color:#33475e}
.muted{color:var(--muted);font-size:12.5px;line-height:1.6}
.note{color:var(--muted);font-size:11.5px;line-height:1.55;margin:9px 0 0}
.ptag{
  background:#eef4fb;border:1px solid #d7e5f4;border-radius:6px;padding:5px 8px;
  font-size:12px;color:#2d4863;margin-bottom:8px;
}
.tabpane .fld{margin-bottom:7px}
.lay{padding:3px 0}
.savebar{
  flex:0 0 auto;border-top:1px solid var(--line);padding:6px 12px;
  font-size:11px;color:var(--muted);background:#fafcfe;
}

/* ---------- ตาราง ---------- */
.tbl{width:100%;border-collapse:collapse;font-size:12px}
.tbl th{
  text-align:left;background:#eef3f9;color:#3d5069;font-weight:600;
  padding:5px 7px;border-bottom:1px solid var(--line);
}
.tbl td{padding:4px 7px;border-bottom:1px solid #eef2f7;vertical-align:top}
.tbl tr.grp td{background:#f7fafd;font-weight:700;color:var(--accent);font-size:11.5px;padding-top:7px}
.tbl .r{text-align:right}
.tbl .nowrap{white-space:nowrap}
.badge{background:#dcfce7;color:#166534;border-radius:4px;padding:1px 5px;font-size:10.5px}
.statrow{display:flex;gap:6px;margin-bottom:11px}
.stat{
  flex:1;background:#f4f8fd;border:1px solid #dde8f4;border-radius:8px;
  padding:7px 6px;text-align:center;
}
.stat b{display:block;font-size:17px;color:var(--accent)}
.stat span{font-size:10.5px;color:var(--muted);line-height:1.25;display:block;margin-top:2px}

.tipbox{
  margin-top:16px;background:#fbfcfe;border:1px solid var(--line);border-radius:8px;padding:9px 11px;
  font-size:11.5px;color:#4a5b70;
}
.tipbox>b{color:#2d4863;display:block;margin-bottom:5px;font-size:12px}
.tipbox li b{color:#2d4863}
.tipbox ul{margin:0;padding-left:16px;line-height:1.85}

/* ---------- โมดัล ---------- */
.modal{
  display:none;position:fixed;inset:0;background:rgba(15,30,50,.45);
  align-items:center;justify-content:center;z-index:100;padding:20px;
}
.modal.show{display:flex}
.box{background:#fff;border-radius:12px;width:420px;max-width:100%;max-height:88vh;
  display:flex;flex-direction:column;box-shadow:0 20px 60px rgba(10,25,45,.35)}
.box.wide{width:660px}
.box-h{display:flex;align-items:center;justify-content:space-between;padding:13px 16px;border-bottom:1px solid var(--line)}
.box-h h3{margin:0;font-size:15px;color:var(--accent)}
.box-h .x{background:none;border:0;font-size:17px;cursor:pointer;color:var(--muted);padding:2px 6px}
.box-h .x:hover{color:var(--danger)}
.box-b{padding:15px 16px;overflow-y:auto}
.box-b .fld{margin-bottom:9px}
.box-b .chk{margin-bottom:7px}
.help h4{margin:15px 0 5px;color:var(--accent);font-size:13px}
.help h4:first-child{margin-top:0}
.help p{margin:0;line-height:1.75;color:#3d4f66;font-size:12.5px}
.help .tbl td{padding:4px 6px}
.hide{display:none}

/* ---------- toast ---------- */
#toasts{position:fixed;right:16px;bottom:16px;display:flex;flex-direction:column;gap:8px;z-index:300}
.toast{
  background:#12283f;color:#fff;padding:10px 15px;border-radius:9px;font-size:13px;
  box-shadow:0 8px 24px rgba(10,25,45,.3);max-width:340px;line-height:1.5;
  animation:tin .22s ease-out;
}
.toast.err{background:#9f1239}
.toast.out{opacity:0;transform:translateY(6px);transition:.3s}
@keyframes tin{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* ---------- จอเล็ก ---------- */
@media (max-width:1180px){
  .left{width:200px;flex-basis:200px}
  .right{width:262px;flex-basis:262px}
  .sgroup-b{grid-template-columns:1fr}
}
@media (max-width:900px){
  .topbar{gap:6px;padding:6px 8px}
  .docname{width:150px}
  .left{width:172px;flex-basis:172px}
  .right{width:236px;flex-basis:236px}
  .tools{grid-template-columns:1fr}
}