/* MES Intercom — จอมืด คอนทราสต์สูง ปุ่มใหญ่ ใช้มือเดียวกลางกองถ่ายได้ */

:root{
  --bg:#0b0d10;
  --bg-2:#13171c;
  --bg-3:#1b2027;
  --line:#252c35;
  --txt:#e8edf3;
  --txt-dim:#8b97a6;
  --accent:#ff5a1f;      /* ส้ม = กำลังพูด */
  --accent-2:#22c55e;    /* เขียว = เชื่อมต่อดี */
  --warn:#eab308;
  --danger:#ef4444;
  --radius:14px;
  --safe-b:env(safe-area-inset-bottom,0px);
  --safe-t:env(safe-area-inset-top,0px);
}

*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{height:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--txt);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Noto Sans Thai","Helvetica Neue",sans-serif;
  overscroll-behavior:none;
  -webkit-user-select:none;user-select:none;
  touch-action:manipulation;
}
button,input,select{font:inherit;color:inherit}
svg{width:22px;height:22px;fill:currentColor;display:block}

.screen{min-height:100dvh;display:flex;flex-direction:column}
[hidden]{display:none !important}

/* ---------------------------------------------------------------- lobby */
#lobby{justify-content:center;padding:calc(24px + var(--safe-t)) 20px calc(24px + var(--safe-b))}
.lobby-box{width:100%;max-width:420px;margin:0 auto}
.brand{display:flex;gap:14px;align-items:center;margin-bottom:28px}
.brand-mark{
  width:46px;height:46px;border-radius:13px;flex:none;
  background:linear-gradient(150deg,var(--accent),#b31f00);
  box-shadow:0 0 0 1px #ffffff12, 0 8px 24px #ff5a1f33;
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:0;margin:auto;width:12px;height:18px;border-radius:6px;
  background:#fff;box-shadow:0 12px 0 -5px #fff;
}
.brand h1{margin:0;font-size:20px;letter-spacing:.3px}
.tagline{margin:2px 0 0;font-size:12.5px;color:var(--txt-dim)}

.field{display:block;margin-bottom:16px}
.field>span{display:block;font-size:12.5px;color:var(--txt-dim);margin-bottom:7px}
.field input[type=text],.field select{
  width:100%;padding:14px 14px;border-radius:var(--radius);
  background:var(--bg-2);border:1px solid var(--line);outline:none;
  -webkit-user-select:text;user-select:text;
}
.field input:focus,.field select:focus{border-color:var(--accent)}
#in-room{text-transform:uppercase;letter-spacing:1.5px;font-weight:600}

.seg{display:flex;gap:6px;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius);padding:5px}
.seg button{
  flex:1;padding:11px 6px;border:0;border-radius:10px;background:transparent;
  color:var(--txt-dim);font-size:13.5px;font-weight:600;cursor:pointer;transition:.13s;
}
.seg button.on{background:var(--bg-3);color:var(--txt);box-shadow:0 1px 0 #ffffff0d inset}
.seg.small button{padding:9px 4px;font-size:12.5px}

.primary{
  width:100%;padding:17px;border:0;border-radius:var(--radius);cursor:pointer;
  background:linear-gradient(160deg,var(--accent),#d63e08);color:#fff;
  font-size:16px;font-weight:700;margin-top:8px;
  box-shadow:0 8px 22px #ff5a1f2e;
}
.primary:active{transform:translateY(1px)}
.hint{font-size:12px;color:var(--txt-dim);line-height:1.6;margin-top:18px;text-align:center}
.err{color:var(--danger);font-size:13px;text-align:center;margin-top:12px}

/* ----------------------------------------------------------------- room */
.topbar{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:calc(10px + var(--safe-t)) 14px 10px;
  border-bottom:1px solid var(--line);background:var(--bg);
  position:sticky;top:0;z-index:5;
}
.room-id{display:flex;align-items:center;gap:9px;min-width:0}
.room-id strong{font-size:16px;letter-spacing:1px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.count{font-size:12px;color:var(--txt-dim);background:var(--bg-3);border-radius:20px;padding:3px 9px;flex:none}
.dot{width:9px;height:9px;border-radius:50%;background:var(--warn);flex:none;transition:.2s}
.dot.ok{background:var(--accent-2);box-shadow:0 0 8px var(--accent-2)}
.dot.bad{background:var(--danger)}
.topbar-actions{display:flex;gap:6px;flex:none}
.icon-btn{
  width:40px;height:40px;display:grid;place-items:center;border:0;cursor:pointer;
  border-radius:11px;background:var(--bg-2);color:var(--txt-dim);
}
.icon-btn:active{background:var(--bg-3)}
.icon-btn.danger{color:#ff8f8f}
.icon-btn.hot{color:var(--accent)}

/* รายชื่อทีม */
.peers{flex:1;overflow-y:auto;padding:12px 12px 4px;display:flex;flex-direction:column;gap:9px}
.peer{
  display:flex;align-items:center;gap:12px;padding:12px 13px;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius);
  transition:border-color .12s, background .12s;
}
.peer.speaking{border-color:var(--accent);background:#1c1512}
.peer.self{border-style:dashed}
.peer.offline{opacity:.45}
.av{
  width:42px;height:42px;border-radius:12px;flex:none;display:grid;place-items:center;
  font-weight:700;font-size:15px;background:var(--bg-3);color:var(--txt-dim);position:relative;
}
.peer.speaking .av{background:var(--accent);color:#fff}
.p-main{flex:1;min-width:0}
.p-name{font-size:14.5px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.p-sub{font-size:11.5px;color:var(--txt-dim);margin-top:3px;display:flex;gap:8px;align-items:center}
.bar{height:4px;border-radius:3px;background:var(--bg-3);overflow:hidden;margin-top:7px}
.bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--accent-2),var(--warn),var(--accent));transition:width .06s linear}
.p-vol{width:76px;flex:none;display:flex;flex-direction:column;gap:5px;align-items:flex-end}
.p-vol input[type=range]{width:76px}
.p-mute{
  border:0;background:var(--bg-3);color:var(--txt-dim);border-radius:9px;
  padding:5px 9px;font-size:11px;cursor:pointer;
}
.p-mute.on{background:#3a1414;color:#ff8f8f}

.statusline{
  display:flex;justify-content:space-between;gap:10px;
  padding:6px 16px;font-size:11px;color:var(--txt-dim);
  font-variant-numeric:tabular-nums;
}

/* ปุ่มพูด */
.controls{padding:6px 12px calc(12px + var(--safe-b));border-top:1px solid var(--line);background:var(--bg)}
.mode-row{display:flex;gap:8px;align-items:stretch;margin-bottom:12px}
.mode-row .seg{flex:1}
.mini{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  width:62px;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--bg-2);color:var(--txt-dim);font-size:10.5px;cursor:pointer;
}
.mini svg{width:19px;height:19px}
.mini.off{background:#3a1414;color:#ff8f8f;border-color:#5a2020}

.ptt{
  position:relative;width:100%;height:112px;border:0;border-radius:20px;cursor:pointer;
  background:var(--bg-3);color:var(--txt-dim);
  font-size:19px;font-weight:800;letter-spacing:.5px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  transition:background .08s, color .08s, transform .06s;
  overflow:hidden;
}
.ptt.live{background:linear-gradient(165deg,var(--accent),#c93a05);color:#fff;box-shadow:0 0 0 3px #ff5a1f44, 0 10px 30px #ff5a1f3d}
.ptt.live:active{transform:scale(.995)}
.ptt.latched{background:linear-gradient(165deg,#e11d48,#9f1239);color:#fff;box-shadow:0 0 0 3px #e11d4844}
.ptt.disabled{opacity:.4;pointer-events:none}
.ptt-meter{width:62%;height:6px;border-radius:4px;background:#00000040;overflow:hidden}
.ptt-meter i{display:block;height:100%;width:0;background:#fff;transition:width .05s linear}
.ptt-hint{text-align:center;font-size:11px;color:var(--txt-dim);margin:9px 0 0}

/* ------------------------------------------------------------- settings */
.sheet{position:fixed;inset:0;z-index:20;background:#000000cc;display:flex;align-items:flex-end}
.sheet-inner{
  width:100%;max-height:88dvh;overflow-y:auto;background:var(--bg-2);
  border-radius:22px 22px 0 0;border-top:1px solid var(--line);
  padding:6px 18px calc(28px + var(--safe-b));
}
.sheet-head{display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;background:var(--bg-2);padding:12px 0;z-index:1}
.sheet-head h2{margin:0;font-size:17px}
.set-group{padding:14px 0;border-top:1px solid var(--line)}
.set-group h3{margin:0 0 12px;font-size:13px;color:var(--txt-dim);font-weight:600;letter-spacing:.4px}
.note{font-size:11.5px;color:var(--txt-dim);line-height:1.65;margin:10px 0 0}
.set-group .field{margin-top:18px}
.secondary{
  width:100%;margin-top:12px;padding:13px;border-radius:var(--radius);cursor:pointer;
  background:var(--bg-3);border:1px solid var(--line);color:var(--txt);
  font-size:14px;font-weight:600;
}
.secondary:active{background:var(--line)}
.secondary:disabled{opacity:.5}
#turn-result{margin-top:12px}
#turn-result.ok{border-color:#2a4d33;color:#b8e6c4}
#turn-result.bad{border-color:#5a2020;color:#ffb3b3}
.switch{display:flex;align-items:center;gap:11px;padding:9px 0;font-size:14px;cursor:pointer}
.switch input{display:none}
.switch span{
  width:44px;height:26px;border-radius:20px;background:var(--bg-3);flex:none;position:relative;transition:.16s;
}
.switch span::after{content:"";position:absolute;top:3px;left:3px;width:20px;height:20px;border-radius:50%;background:#6b7683;transition:.16s}
.switch input:checked + span{background:#2a4d33}
.switch input:checked + span::after{transform:translateX(18px);background:var(--accent-2)}
.diag{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px;line-height:1.7;
  color:var(--txt-dim);background:var(--bg);border:1px solid var(--line);border-radius:11px;
  padding:12px;white-space:pre-wrap;word-break:break-word;margin:0;max-height:230px;overflow:auto;
  -webkit-user-select:text;user-select:text;
}

input[type=range]{
  -webkit-appearance:none;appearance:none;height:26px;background:transparent;width:100%;margin:0;
}
input[type=range]::-webkit-slider-runnable-track{height:5px;border-radius:4px;background:var(--bg-3)}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:19px;height:19px;border-radius:50%;background:var(--txt);margin-top:-7px}
input[type=range]::-moz-range-track{height:5px;border-radius:4px;background:var(--bg-3)}
input[type=range]::-moz-range-thumb{width:19px;height:19px;border:0;border-radius:50%;background:var(--txt)}

/* ---------------------------------------------------------------- toast */
.toast{
  position:fixed;left:50%;transform:translateX(-50%);bottom:calc(24px + var(--safe-b));
  background:#000000e6;border:1px solid var(--line);color:var(--txt);
  padding:11px 18px;border-radius:24px;font-size:13px;z-index:40;pointer-events:none;
  max-width:88vw;text-align:center;
}

@media (min-width:640px){
  .peers{max-width:560px;width:100%;margin:0 auto}
  .controls>*{max-width:560px;margin-left:auto;margin-right:auto}
  .ptt{max-width:560px}
}