:root {
  --bg: #120d0a;
  --panel: #1f1712;
  --line: #4a3526;
  --text: #f1e6d8;
  --muted: #b9a58f;
  --accent: #d9792b;
  --accent-ink: #1a0f06;
}
html, body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
  touch-action: none;
}
canvas#mainwindow {
  position: fixed;
  left: 0;
  top: 0;
  display: none;
}
body.running { cursor: none; }
#progress {
  display: none;
  position: fixed;
  inset: 0;
  place-content: center;
  text-align: center;
  padding-top: 45vh;
  color: var(--muted);
}
#overlay {
  position: fixed;
  inset: 0;
  overflow: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  box-sizing: border-box;
  background: radial-gradient(ellipse at 50% 30%, #3a2416 0%, var(--bg) 70%);
}
#overlay[hidden], section[hidden] { display: none; }
section {
  max-width: 560px;
  width: 100%;
  text-align: center;
}
h1 {
  margin: 0 0 4px;
  font-size: clamp(30px, 8vw, 46px);
  letter-spacing: 0.04em;
  color: var(--accent);
}
h2 { font-size: 17px; margin: 0 0 6px; }
.sub { color: var(--muted); margin: 0 0 18px; }
button, .file-btn {
  font: inherit;
  cursor: pointer;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text);
  padding: 9px 16px;
  display: inline-block;
}
button.big {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
  font-weight: 700;
  font-size: 19px;
  padding: 12px 28px;
}
button:hover, .file-btn:hover { filter: brightness(1.12); }
.file-btn input { display: none; }
.hint { color: var(--muted); font-size: 13.5px; margin: 14px 0 22px; }
kbd {
  display: inline-block;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0 5px;
  margin: 0 1px;
  font: 12px ui-monospace, monospace;
  background: var(--panel);
}
.touch-only { display: none; }
body.touch .touch-only { display: inline; }
.own {
  border: 1px dashed var(--line);
  border-radius: 10px;
  padding: 14px 16px;
  background: rgba(0, 0, 0, 0.25);
}
#start.drop .own { border-color: var(--accent); background: rgba(217, 121, 43, 0.12); }
.own p { color: var(--muted); font-size: 13.5px; margin: 0 0 12px; }
.own a { color: var(--accent); }
.msg { min-height: 1.4em; color: var(--text) !important; margin: 10px 0 0 !important; }
code { font: 12.5px ui-monospace, monospace; }
pre {
  white-space: pre-wrap;
  text-align: left;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  font-size: 13px;
}
#touch[hidden] { display: none; }
#touch-zone { position: fixed; inset: 0; z-index: 5; }
.tbtns {
  position: fixed;
  right: 10px;
  bottom: 10px;
  z-index: 6;
  display: grid;
  grid-template-columns: repeat(2, 64px);
  gap: 8px;
}
.tbtns button {
  padding: 0;
  height: 44px;
  font-size: 12px;
  background: rgba(31, 23, 18, 0.55);
  border-color: rgba(255, 255, 255, 0.25);
}
.tbtns .fire { grid-column: span 2; height: 64px; font-size: 15px; background: rgba(217, 121, 43, 0.55); }