*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --bg: #f7fbff;
  --card: #ffffff;
  --ink: #214f6e;
  --accent: #ff8c42;
  --good: #28a745;
  --bad: #e55353;
  --line: #d7e7f4;
  font-family: "Comic Sans MS", "Marker Felt", "幼圆", "Microsoft JhengHei", sans-serif;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: radial-gradient(circle at 20% 0%, #dff3ff 0%, #f7fbff 40%, #fff6e8 100%);
  color: var(--ink);
}

body {
  padding: 16px;
}

#game-shell {
  width: min(1200px, 100%);
  margin: 0 auto;
  display: grid;
  gap: 12px;
}

.game-wrap {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 12px;
}

.canvas-wrap,
.panel {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px;
  box-shadow: 0 8px 24px rgba(28, 75, 116, 0.1);
}

.canvas-wrap h1 {
  margin: 0 0 8px;
  font-size: 1.2rem;
}

canvas {
  width: 100%;
  max-width: 768px;
  aspect-ratio: 3 / 2;
  display: block;
  border: 2px solid #b6d9f3;
  background: #eef8ff;
  border-radius: 8px;
}

.hint {
  margin: 6px 0 0;
  font-size: 0.9rem;
}

.wide {
  width: 100%;
}

.card {
  background: var(--card);
  border-radius: 10px;
  padding: 10px 12px;
  margin-bottom: 8px;
  border: 1px solid #deedf9;
}

.card h2 {
  margin: 0 0 8px;
  color: #1a4e72;
  font-size: 1rem;
}

.coins,
.xp {
  font-size: 1.1rem;
  font-weight: bold;
  margin-top: 6px;
}

#playerName {
  font-size: 1.15rem;
  font-weight: 700;
}

#questList,
#inventory,
#shop {
  display: grid;
  gap: 6px;
  max-height: 260px;
  overflow: auto;
}

.quest-item,
.inv-item,
.shop-item {
  border: 1px solid #dbeafb;
  border-radius: 8px;
  padding: 7px;
  background: #f9fcff;
}

.quest-item.pending {
  border-left: 5px solid #f9a11d;
}

.quest-item.done {
  border-left: 5px solid #28a745;
  background: #f1fff4;
}

.tag {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 999px;
  color: #fff;
  font-size: 0.75rem;
  margin-right: 6px;
}

.easy {
  background: #40b34f;
}
.medium {
  background: #f2a33f;
}
.hard {
  background: #f24f4f;
}

.chat-log {
  height: 190px;
  border: 1px solid #d7ebfa;
  border-radius: 8px;
  padding: 8px;
  overflow: auto;
  background: #f8fcff;
  display: grid;
  gap: 6px;
}

.chat-line {
  font-size: 0.95rem;
  line-height: 1.35;
}

.chat-form {
  display: flex;
  margin-top: 8px;
  gap: 6px;
}

#chatInput,
#roomInput,
#nameInput,
#wsUrlInput {
  flex: 1;
  border: 1px solid #bfd1df;
  border-radius: 8px;
  padding: 8px;
  font-size: 0.95rem;
}

.online {
  margin-top: 8px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

#saveWsBtn,
#resetBtn {
  padding: 8px 10px;
}

.small-note {
  margin: 4px 0 0;
  color: #6b7f90;
  font-size: 0.85rem;
}

button {
  border: 0;
  background: #4fa9ff;
  color: #fff;
  font-weight: bold;
  border-radius: 8px;
  padding: 8px 12px;
  cursor: pointer;
}

button:hover {
  filter: brightness(1.05);
}

.overlay {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(13, 34, 56, 0.45);
  z-index: 40;
}

.overlay.hidden {
  display: none;
}

.overlay-card {
  width: min(640px, 92vw);
  max-width: 640px;
  background: #fff;
  border-radius: 14px;
  border: 1px solid #dae8f5;
  padding: 18px;
  box-shadow: 0 12px 30px rgba(2, 41, 80, 0.25);
}

.overlay-card.small {
  width: 340px;
  text-align: center;
}

.quest-options {
  display: grid;
  gap: 8px;
  margin-top: 10px;
}

.quest-options button,
.shop-item button {
  width: 100%;
}

input[type="text"] {
  width: 100%;
  margin: 6px 0 8px;
}

.muted {
  color: #7a8b99;
  font-size: 0.85rem;
}

.required {
  color: #b53f3f;
  font-weight: 700;
}

@media (max-width: 980px) {
  .game-wrap {
    grid-template-columns: 1fr;
  }
  canvas {
    max-width: 100%;
  }
}