/* ── Reset & Base ── */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background: #0a0a12;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  overflow: hidden;
  font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
}

#game-container {
  position: relative;
}

canvas {
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  display: block;
}

/* ── HUD ── */
#hud {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  background: rgba(0, 0, 0, 0.65);
  border: 2px solid rgba(255, 255, 255, 0.15);
  border-radius: 12px;
  padding: 8px 24px;
  backdrop-filter: blur(4px);
}

#hud-hearts {
  color: #fff;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 1px;
  text-shadow: 0 1px 3px rgba(0,0,0,0.5);
}

/* ── Interaction Prompt ── */
#interact-prompt {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  background: rgba(0, 0, 0, 0.7);
  border: 2px solid rgba(232, 208, 112, 0.4);
  border-radius: 8px;
  padding: 6px 18px;
  color: #e8d070;
  font-size: 14px;
  font-weight: 500;
  animation: prompt-pulse 1.5s ease-in-out infinite;
  transition: opacity 0.2s;
}

#interact-prompt kbd {
  background: rgba(232, 208, 112, 0.2);
  border: 1px solid rgba(232, 208, 112, 0.4);
  border-radius: 4px;
  padding: 1px 6px;
  font-family: inherit;
  font-weight: 700;
}

@keyframes prompt-pulse {
  0%, 100% { opacity: 0.8; }
  50% { opacity: 1; }
}

/* ── Modal ── */
#modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  justify-content: center;
  align-items: center;
  backdrop-filter: blur(3px);
  animation: fade-in 0.25s ease;
}

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

#modal-box {
  background: #fff;
  border-radius: 18px;
  padding: 32px 36px 28px;
  max-width: 420px;
  width: 90%;
  box-shadow:
    0 8px 32px rgba(0,0,0,0.35),
    0 0 0 1px rgba(255,255,255,0.1);
  text-align: center;
  animation: modal-pop 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes modal-pop {
  from { transform: scale(0.85); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

#modal-title {
  font-size: 20px;
  font-weight: 700;
  color: #2a2a3a;
  margin-bottom: 14px;
}

#modal-body {
  font-size: 15px;
  line-height: 1.65;
  color: #444;
  margin-bottom: 22px;
  white-space: pre-line;
  text-align: left;
}

#modal-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
}

#modal-buttons button {
  padding: 10px 28px;
  border: none;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.12s, box-shadow 0.12s;
}

#modal-buttons button:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

#modal-buttons button:active {
  transform: translateY(0);
}

button.btn-primary {
  background: linear-gradient(135deg, #e87090, #d45070);
  color: #fff;
}

button.btn-secondary {
  background: #f0f0f5;
  color: #555;
  border: 1px solid #ddd;
}

button.btn-yes {
  background: linear-gradient(135deg, #e87090, #d45070);
  color: #fff;
}

button.btn-no {
  background: #f0f0f5;
  color: #555;
  border: 1px solid #ddd;
}

/* ── Utility ── */
.hidden {
  display: none !important;
}