:root {
  --panel-bg: rgba(250, 249, 246, 0.94);
  --panel-text: #23262b;
  --muted: #6b7078;
  --accent: #b5484f;          /* Rot der Deckenplatten */
  --accent-dark: #943940;
  --line: rgba(35, 38, 43, 0.12);
  --hud-text: #ffffff;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: #1d2024;
  font-family: var(--font);
  color: var(--panel-text);
  user-select: none;
  -webkit-user-select: none;
}

#app, #app canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.hidden { display: none !important; }

/* ---------- Overlay (Start / Pause) ---------- */
#overlay {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 16px;
  background: rgba(20, 22, 26, 0.38);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  z-index: 10;
}

.panel {
  width: min(520px, 100%);
  max-height: calc(100vh - 32px);
  overflow: auto;
  background: var(--panel-bg);
  border-radius: 14px;
  padding: 28px 28px 22px;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
}

.school-facts { display: flex; flex-wrap: wrap; gap: 7px; margin: 0 0 18px; }
.school-facts span { padding: 5px 9px; border-radius: 6px; background: #ece8e3; color: #53585f; font-size: 12px; }
#loading-status { color: var(--muted); font-size: 13px; line-height: 1.4; }
#loading-status.load-error { color: #9a2530; }
.secondary-btn { width: 100%; margin-top: 9px; padding: 10px 14px; border: 1px solid #b8b8b8; border-radius: 9px; background: transparent; color: var(--panel-text); font: 600 14px var(--font); cursor: pointer; }
.secondary-btn:hover { background: #e9e4df; }
.help { margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--line); font-size: 14px; }
.help summary { cursor: pointer; }
.help .controls { border-top: 0; margin-top: 8px; padding-top: 8px; }
.version { margin: 20px 0 0; font-size: 11px; color: var(--muted); }
#telemetry-note { margin-top: 4px; }
button:focus-visible, summary:focus-visible { outline: 3px solid #527b97; outline-offset: 3px; }

.eyebrow {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
}

.panel h1 {
  margin: 0 0 8px;
  font-size: 28px;
  line-height: 1.15;
}

.lead {
  margin: 0 0 20px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.5;
}

#start-btn {
  width: 100%;
  padding: 13px 18px;
  border: 0;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  font: 600 16px var(--font);
  cursor: pointer;
  transition: background 0.15s ease;
}
#start-btn:hover:not(:disabled) { background: var(--accent-dark); }
#start-btn:disabled { opacity: 0.6; cursor: wait; }

.controls {
  list-style: none;
  margin: 20px 0 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 8px;
  font-size: 14px;
}
.controls li {
  display: flex;
  align-items: center;
  gap: 5px;
}
.controls span { margin-left: 8px; color: var(--muted); }

kbd {
  display: inline-block;
  min-width: 26px;
  padding: 3px 7px;
  border: 1px solid #c9ccd1;
  border-bottom-width: 2px;
  border-radius: 6px;
  background: #fff;
  font: 600 12px var(--font);
  text-align: center;
  color: var(--panel-text);
}

/* ---------- HUD ---------- */
#hud {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 5;
  color: var(--hud-text);
}

#area-label {
  position: absolute;
  top: 16px;
  left: 16px;
  padding: 6px 12px;
  border-radius: 8px;
  background: rgba(20, 22, 26, 0.45);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

#crosshair {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 6px;
  height: 6px;
  margin: -3px 0 0 -3px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 0 0 1.5px rgba(0, 0, 0, 0.35);
}

#prompt {
  position: absolute;
  left: 50%;
  top: calc(50% + 34px);
  transform: translateX(-50%);
  display: grid;
  gap: 6px;
  padding: 7px 12px;
  border-radius: 8px;
  background: rgba(20, 22, 26, 0.6);
  font-size: 14px;
  white-space: nowrap;
}
.prompt-row { display: flex; align-items: center; gap: 8px; }
#target-focus {
  position: absolute;
  pointer-events: none;
  --focus-color: rgba(255, 227, 173, .85);
  background:
    linear-gradient(var(--focus-color),var(--focus-color)) left top / 14px 2px,
    linear-gradient(var(--focus-color),var(--focus-color)) left top / 2px 14px,
    linear-gradient(var(--focus-color),var(--focus-color)) right top / 14px 2px,
    linear-gradient(var(--focus-color),var(--focus-color)) right top / 2px 14px,
    linear-gradient(var(--focus-color),var(--focus-color)) left bottom / 14px 2px,
    linear-gradient(var(--focus-color),var(--focus-color)) left bottom / 2px 14px,
    linear-gradient(var(--focus-color),var(--focus-color)) right bottom / 14px 2px,
    linear-gradient(var(--focus-color),var(--focus-color)) right bottom / 2px 14px;
  background-repeat: no-repeat;
  filter: drop-shadow(0 1px 1px #222);
}
#photo-panel { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); z-index: 15; display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 10px; width: min(860px, calc(100% - 32px)); padding: 16px; border-radius: 12px; background: var(--panel-bg); box-shadow: 0 8px 24px #0005; font-size: 13px; }
#photo-panel strong { flex-basis: 100%; text-align: center; }
#photo-panel button, #photo-panel select { padding: 7px 10px; border: 1px solid #b7b7b7; border-radius: 6px; background: #fff; font: inherit; cursor: pointer; }
#photo-panel #photo-save { background: var(--accent); color: #fff; border-color: var(--accent); }
#photo-panel small { flex-basis: 100%; text-align: center; color: var(--muted); }
#prompt kbd { min-width: 22px; padding: 2px 6px; }

#minimap {
  position: absolute;
  top: 16px;
  right: 16px;
  border-radius: 10px;
}
#minimap.large {
  top: 50%;
  right: 50%;
  transform: translate(50%, -50%);
}

/* ---------- Einstellungen ---------- */
#settings {
  margin-top: 16px;
  border-top: 1px solid var(--line);
  padding-top: 12px;
}
#settings summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 15px;
}
.settings-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.3fr);
  align-items: center;
  gap: 10px 12px;
  margin-top: 12px;
  font-size: 14px;
}
.settings-grid label { color: var(--muted); }
.settings-grid select {
  width: 100%;
  padding: 6px 8px;
  border: 1px solid #c9ccd1;
  border-radius: 6px;
  background: #fff;
  font: 14px var(--font);
}
.settings-grid input[type="checkbox"] { justify-self: start; width: 18px; height: 18px; accent-color: var(--accent); }
.range { display: flex; align-items: center; gap: 8px; }
.range input { flex: 1; min-width: 0; accent-color: var(--accent); }
.range output { width: 38px; text-align: right; font-variant-numeric: tabular-nums; color: var(--panel-text); }
.link-btn {
  margin-top: 10px;
  padding: 0;
  border: 0;
  background: none;
  color: var(--accent);
  font: 600 13px var(--font);
  cursor: pointer;
}

#hint {
  position: absolute;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  max-width: calc(100% - 32px);
  padding: 8px 14px;
  border-radius: 8px;
  background: rgba(20, 22, 26, 0.6);
  font-size: 14px;
  text-align: center;
}

@media (max-width: 480px) {
  .panel { padding: 22px 18px 18px; }
  .panel h1 { font-size: 24px; }
}

/* Leistungsanzeige (F3) */
#perf {
  position: fixed;
  left: 12px;
  bottom: 12px;
  z-index: 30;
  margin: 0;
  padding: 8px 10px;
  border-radius: 6px;
  background: rgba(10, 12, 16, 0.72);
  color: #d8f5d0;
  font: 12px/1.45 ui-monospace, Consolas, monospace;
  pointer-events: none;
}