* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg-dark: #0a0a1a;
  --bc-gold: #ffd54f;
  --bs-blue: #42a5f5;
  --brand-gold: #ff8f00;
  --health-green: #66bb6a;
  --danger-red: #ef5350;
  --safe-cyan: #26c6da;
  --text-light: #e0e0e0;
  --text-dim: rgba(255, 255, 255, 0.5);
}

body {
  background: var(--bg-dark);
  color: var(--text-light);
  font-family: "Noto Sans TC", "Noto Sans SC", sans-serif;
  overflow: hidden;
  width: 100vw;
  height: 100vh;
}

#godot-container {
  position: fixed;
  inset: 0;
  z-index: 0;
}

#godot-container canvas {
  width: 100%;
  height: 100%;
  display: block;
}

#overlay {
  position: fixed;
  inset: 0;
  z-index: 10;
  pointer-events: none;
}

#overlay > * {
  pointer-events: auto;
}

#chart-container {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 40%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 2vw;
  opacity: 0;
  transition: opacity 0.6s ease;
}

#chart-container.visible {
  opacity: 1;
}

#chart-container.fullscreen-hidden {
  display: none;
}

#touch-menu {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(10, 10, 26, 0.85);
  backdrop-filter: blur(8px);
  opacity: 0;
  transition: opacity 0.4s ease;
}

#touch-menu.visible {
  opacity: 1;
}

.hidden { display: none !important; }

#loading-screen {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: var(--bg-dark);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  transition: opacity 0.8s ease;
}

#loading-screen.fade-out { opacity: 0; pointer-events: none; }

.loading-logo {
  font-size: 3rem;
  font-weight: 700;
  color: var(--bc-gold);
  letter-spacing: 4px;
}

.loading-bar {
  width: 240px;
  height: 3px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
  overflow: hidden;
}

.loading-progress {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--bc-gold), var(--bs-blue));
  transition: width 0.3s ease;
}

.chart-title {
  fill: var(--text-light);
  font-size: 16px;
  font-weight: 600;
}

.axis text {
  fill: var(--text-dim);
  font-size: 11px;
}

.axis line, .axis path {
  stroke: rgba(255, 255, 255, 0.15);
}

@media (orientation: portrait) {
  #chart-container {
    width: 100%;
    height: 40%;
    top: auto;
    bottom: 0;
    right: 0;
  }
}

@media (max-width: 1279px) and (min-width: 768px) {
  #chart-container { padding: 1.5vw; }
  .chart-title { font-size: 14px; }
  .axis text { font-size: 10px; }
}

@media (max-width: 767px) {
  #chart-container {
    width: 100%;
    height: 45%;
    padding: 3vw;
  }
  .chart-title { font-size: 13px; }
}

/* Touch Menu */
.menu-center {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}

.menu-logo {
  font-size: 1.8rem;
  font-weight: 700;
  color: #ffd54f;
  letter-spacing: 3px;
}

.menu-btn {
  position: absolute;
  top: 50%; left: 50%;
  width: 90px; height: 90px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 2px solid;
  color: #e0e0e0;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  backdrop-filter: blur(4px);
  transition: background 0.2s, transform 0.2s;
  margin: -45px 0 0 -45px;
  touch-action: manipulation;
}

.menu-btn:hover, .menu-btn:active {
  background: rgba(255, 255, 255, 0.12);
}

.menu-icon { font-size: 24px; }
.menu-label { font-size: 10px; line-height: 1.2; text-align: center; }

.lang-toggle {
  position: absolute;
  bottom: 40px; left: 50%;
  transform: translateX(-50%);
  padding: 8px 24px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 20px;
  color: #e0e0e0;
  font-size: 14px;
  cursor: pointer;
  touch-action: manipulation;
}

/* Home button */
#btn-home {
  position: fixed;
  top: 16px;
  left: 16px;
  z-index: 20;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(10, 10, 26, 0.5);
  color: rgba(255, 255, 255, 0.6);
  font-size: 22px;
  cursor: pointer;
  pointer-events: auto;
  backdrop-filter: blur(4px);
  transition: background 0.2s, color 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  line-height: 1;
}

#btn-home:hover {
  background: rgba(255, 213, 79, 0.2);
  color: #ffd54f;
}

@media (min-width: 1280px) {
  .menu-btn { width: 110px; height: 110px; margin: -55px 0 0 -55px; }
  .menu-icon { font-size: 28px; }
  .menu-label { font-size: 12px; }
}