/* Stormwind Trebuchet Simulator - field-manual HUD over a full screen canvas */
:root {
  --ink: #f2e6cf;
  --ink-dim: #b9a888;
  --panel: rgba(28, 24, 20, 0.82);
  --panel-edge: rgba(198, 160, 92, 0.42);
  --panel-inner: rgba(12, 10, 8, 0.55);
  --timber: #6b4a2b;
  --iron: #4a4744;
  --gold: #d8b45c;
  --blue: #3f6fb5;
  --accent: #ff8a3d;
  --good: #8fc06a;
  --shadow: 0 6px 22px rgba(0, 0, 0, 0.45);
  --radius: 6px;
  --font: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --mono: "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;
}
@media (prefers-color-scheme: light) {
  :root {
    --ink: #241c12;
    --ink-dim: #5c4c36;
    --panel: rgba(244, 234, 213, 0.90);
    --panel-edge: rgba(120, 88, 40, 0.45);
    --panel-inner: rgba(255, 250, 240, 0.6);
    --gold: #8a6620;
    --accent: #b84a12;
    --good: #3f6b23;
    --shadow: 0 6px 20px rgba(60, 44, 22, 0.28);
  }
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  overflow: hidden;
  background: #1b1f26;
  color: var(--ink);
  font-family: var(--font);
  font-size: 14px;
  -webkit-text-size-adjust: 100%;
}
#scene { position: fixed; inset: 0; width: 100%; height: 100%; display: block; touch-action: none; }

#loading {
  position: fixed; inset: 0; margin: 0; display: grid; place-content: center;
  color: #e8dcc2; background: #1b1f26; font-size: 18px; letter-spacing: 0.04em; z-index: 40;
}
#loading.done { display: none; }

#hud { position: fixed; inset: 0; pointer-events: none; }
#hud > * { pointer-events: auto; }

.panel {
  position: absolute;
  background: var(--panel);
  border: 1px solid var(--panel-edge);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 10px 12px;
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
}
.panel h2 {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
  border-bottom: 1px solid var(--panel-edge);
  padding-bottom: 5px;
  font-weight: 600;
}
dl.rows { display: grid; grid-template-columns: auto 1fr; gap: 3px 10px; margin: 0; }
dl.rows dt { color: var(--ink-dim); font-size: 12px; }
dl.rows dd { margin: 0; text-align: right; font-family: var(--mono); font-size: 12px; font-variant-numeric: tabular-nums; }

#panel-setup { top: 12px; left: 12px; width: 244px; }
#panel-result { top: 12px; right: 12px; width: 262px; }
#panel-tune { top: 268px; right: 12px; width: 262px; max-height: calc(100vh - 300px); overflow-y: auto; }
#panel-energy { left: 12px; bottom: 14px; width: 244px; }

.target-line {
  display: flex; justify-content: space-between; align-items: baseline; gap: 8px;
  margin: 0 0 7px; padding-bottom: 6px; border-bottom: 1px dashed var(--panel-edge);
}
.target-line span:first-child { font-weight: 700; color: var(--ink); }
.target-line span:last-child { font-family: var(--mono); color: var(--gold); }
.damage { margin: 8px 0 0; font-size: 12px; color: var(--ink-dim); display: flex; justify-content: space-between; }
.damage strong { font-family: var(--mono); color: var(--accent); }

.ctl { margin: 0 0 9px; display: grid; grid-template-columns: 1fr auto; align-items: baseline; gap: 2px 6px; }
.ctl label { font-size: 12px; color: var(--ink-dim); }
.ctl output { font-family: var(--mono); font-size: 12px; color: var(--gold); font-variant-numeric: tabular-nums; }
.ctl input[type=range] { grid-column: 1 / -1; width: 100%; margin: 2px 0 0; accent-color: var(--accent); height: 18px; }
.ctl-note { margin: 6px 0 0; font-size: 11px; line-height: 1.4; color: var(--ink-dim); }
#advanced { margin: 2px 0 8px; border-top: 1px dashed var(--panel-edge); padding-top: 6px; }
#advanced summary { font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--gold); cursor: pointer; margin-bottom: 6px; }

.phase { margin: 0 0 8px; font-size: 12px; color: var(--ink-dim); display: flex; justify-content: space-between; }
.phase strong { color: var(--accent); font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.06em; }
.bar { display: grid; grid-template-columns: 1fr auto; gap: 1px 8px; margin-bottom: 6px; font-size: 11px; color: var(--ink-dim); }
.bar b { font-family: var(--mono); font-weight: 500; color: var(--ink); font-variant-numeric: tabular-nums; }
.bar i { grid-column: 1 / -1; display: block; height: 5px; background: var(--panel-inner); border-radius: 3px; overflow: hidden; }
.bar u { display: block; height: 100%; width: 0%; text-decoration: none; background: linear-gradient(90deg, var(--gold), var(--accent)); transition: width 90ms linear; }
.ring { margin: 8px 0 0; font-size: 11px; color: var(--ink-dim); }
.ring strong { font-family: var(--mono); color: var(--ink); }

#controls {
  position: absolute; left: 50%; bottom: 14px; transform: translateX(-50%);
  display: flex; flex-wrap: wrap; gap: 8px; align-items: center; justify-content: center;
  max-width: min(680px, 60vw);
}
#controls button {
  font-family: var(--font); font-size: 13px; color: var(--ink);
  background: var(--panel); border: 1px solid var(--panel-edge); border-radius: var(--radius);
  padding: 8px 14px; cursor: pointer; box-shadow: var(--shadow);
}
#controls button:hover { border-color: var(--gold); }
#controls button.primary {
  font-size: 17px; letter-spacing: 0.12em; text-transform: uppercase; font-weight: 700;
  padding: 10px 30px; color: #fff5e6;
  background: linear-gradient(180deg, #8c3b12, #5d2409);
  border-color: var(--accent);
}
#controls button.primary:disabled { background: linear-gradient(180deg, #4a4038, #332b25); border-color: var(--panel-edge); color: var(--ink-dim); }
#controls button:disabled { opacity: 0.55; cursor: default; }
#controls button[aria-pressed="false"] { color: var(--ink-dim); }
#hints { flex: 1 0 100%; text-align: center; margin: 2px 0 0; font-size: 11px; color: var(--ink-dim); text-shadow: 0 1px 3px rgba(0,0,0,0.6); }
#hints b { color: var(--gold); font-weight: 600; }

#tune-toggle { display: none; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
button:focus-visible, input:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

#status {
  position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* narrow screens: tuning collapses into a drawer, Fire / camera / result stay up */
@media (max-width: 760px) {
  #panel-setup { display: none; }
  #panel-result { top: 8px; right: 8px; left: 8px; width: auto; font-size: 12px; }
  #panel-energy { left: 8px; bottom: 92px; width: 190px; padding: 8px; }
  #panel-energy .bar span { font-size: 10px; }
  #panel-tune {
    top: auto; bottom: 0; left: 0; right: 0; width: auto; max-height: 62vh;
    border-radius: var(--radius) var(--radius) 0 0; transform: translateY(102%);
    transition: transform 180ms ease-out; z-index: 20;
  }
  #panel-tune.open { transform: translateY(0); }
  #tune-toggle {
    display: block; position: absolute; right: 8px; bottom: 14px; z-index: 21;
    font-family: var(--font); font-size: 13px; color: var(--ink);
    background: var(--panel); border: 1px solid var(--panel-edge); border-radius: var(--radius);
    padding: 8px 12px; box-shadow: var(--shadow); cursor: pointer;
  }
  #controls { left: 8px; right: 8px; bottom: 12px; transform: none; max-width: none; justify-content: flex-start; }
  #controls button.primary { padding: 10px 20px; font-size: 15px; }
  #btn-replay, #btn-traj { display: none; }
  #hints { display: none; }
}
@media (max-height: 620px) {
  #panel-tune { max-height: calc(100vh - 280px); }
}
@media (prefers-reduced-motion: reduce) {
  .bar u { transition: none; }
  #panel-tune { transition: none; }
}