:root{
  --bg: #000;
  --panel: rgba(15, 15, 20, 0.72);
  --panel2: rgba(15, 15, 20, 0.45);
  --text: rgba(255,255,255,0.92);
  --muted: rgba(255,255,255,0.65);
  --line: rgba(255,255,255,0.12);
  --accent: rgba(120, 190, 255, 0.95);
  --glow: rgba(255, 220, 140, 0.18);
}

*{ box-sizing:border-box; }
html, body{ height:100%; }
body{
  margin:0;
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial;
  overflow:hidden;
}

#app{ position:relative; width:100%; height:100%; }
#c{ width:100%; height:100%; display:block; }

.hud{
  position:fixed;
  top:14px; left:14px; right:14px;
  display:flex;
  justify-content: space-between;
  gap: 16px;
  align-items:flex-start;
  pointer-events:none;
  z-index: 30;
}

.hud-left{
  background: var(--panel2);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px 14px;
  backdrop-filter: blur(10px);
  max-width: 760px;
}

.title{ font-weight: 800; letter-spacing:0.2px; }
.sub{ margin-top: 6px; color: var(--muted); font-size: 13px; }

.hud-right{
  display:flex;
  gap:10px;
  pointer-events:auto;
}

.btn{
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.08);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 12px;
  cursor:pointer;
  transition: transform .08s ease, background .15s ease;
}
.btn:hover{ background: rgba(255,255,255,0.12); }
.btn:active{ transform: translateY(1px); }
.btn.ghost{ background: transparent; }
.btn.tiny{ padding: 6px 10px; border-radius: 10px; }

.panel{
  position:absolute;
  right: 14px;
  top: 70px;          
  bottom: 14px;
  width: 340px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 12px;
  backdrop-filter: blur(12px);
  display:flex;
  flex-direction: column;
  gap: 10px;
  overflow:auto;
  z-index: 9;

  transform: translateX(0);
  opacity: 1;
  transition: transform .22s ease, opacity .22s ease;
}

.panel:not(.open){
  transform: translateX(calc(100% + 20px));
  opacity: 0;
  pointer-events: none;
}

.panel-head{
  display:flex;
  justify-content: space-between;
  align-items:center;
  gap:10px;
  padding-bottom: 4px;
}

.panel-title-big{
  font-weight: 900;
  font-size: 16px;
  letter-spacing: 0.2px;
}

.panel-section{
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px;
  background: rgba(0,0,0,0.22);
}

.panel-title{
  font-weight: 800;
  margin-bottom: 10px;
}

.row{
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap:10px;
  margin: 10px 0;
  color: var(--muted);
  font-size: 13px;
}
.row input[type="range"]{ width: 150px; }

.row select{
  width: 170px;
  background: rgba(255,255,255,0.06);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px 10px;
  outline:none;
}

.small{ font-size: 12px; color: var(--muted); }
.note{ margin-top: 8px; }

.mono{ font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Courier New", monospace; }
.math{ font-size: 12px; color: rgba(255,255,255,0.78); line-height: 1.45; }
.math hr{ border:none; border-top: 1px solid var(--line); margin: 10px 0; }

.selected-name{
  font-size: 16px;
  font-weight: 900;
  margin-bottom: 8px;
}

.selected-tag{
  display:inline-block;
  margin-bottom: 10px;
  padding: 6px 8px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(0,0,0,0.35);
  color: rgba(255,255,255,0.86);
}

.stats{
  white-space: pre-wrap;
  font-size: 12px;
  color: rgba(255,255,255,0.78);
  line-height: 1.45;
  margin-top: 6px;
}

.facts{
  margin-top: 10px;
  font-size: 13px;
  color: rgba(255,255,255,0.86);
  line-height: 1.45;
}

.panel-footer{
  margin-top: auto;
  padding: 6px 2px 0;
  opacity: 0.9;
}

.hint{
  position:absolute;
  left: 14px;
  bottom: 14px;
  background: var(--panel2);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 10px 12px;
  color: var(--muted);
  font-size: 13px;
  backdrop-filter: blur(10px);
  z-index: 10;
}

.panel{
  scrollbar-width: none;   
  -ms-overflow-style: none;   
}
.panel::-webkit-scrollbar{
  width: 0;
  height: 0;
}
.panel::-webkit-scrollbar-thumb{
  background: transparent;
}
/* Dark dropdown, consistent in Chromium (Edge/Chrome) */
.panel select{
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background: rgba(255,255,255,0.06);
  color: rgba(255,255,255,0.92);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 12px;
  padding: 10px 42px 10px 12px;
  outline: none;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,0.15);
  background-image:
    linear-gradient(45deg, transparent 50%, rgba(255,255,255,0.75) 50%),
    linear-gradient(135deg, rgba(255,255,255,0.75) 50%, transparent 50%),
    linear-gradient(to right, transparent, transparent);
  background-position:
    calc(100% - 18px) calc(50% - 3px),
    calc(100% - 12px) calc(50% - 3px),
    0 0;
  background-size: 6px 6px, 6px 6px, 100% 100%;
  background-repeat: no-repeat;
}

.panel select:focus{
  border-color: rgba(120,190,255,0.55);
  box-shadow: 0 0 0 3px rgba(120,190,255,0.15);
}

/* Options: works for many Chromium builds */
.panel select option{
  background: #0b0b0f;
  color: rgba(255,255,255,0.92);
}