/* ============================================================
   星光庭園 Lumen Garden — 全部樣式
   ============================================================ */

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

body {
  background: #10182b;
  color: #eef3ff;
  font-family: "Segoe UI", "Microsoft JhengHei", system-ui, sans-serif;
  display: flex;
  justify-content: center;
  min-height: 100vh;
  user-select: none;
}

#app {
  position: relative;
  padding: 12px 16px 24px;
  width: fit-content;
  max-width: 100%;
}

/* ---------- 頂部 HUD ---------- */
#hud {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 8px 4px;
}

#hud-title {
  font-size: 20px;
  letter-spacing: 6px;
  color: #ffd97a;
  text-shadow: 0 0 12px rgba(255, 217, 122, .5);
}

.hud-item {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #1c2742;
  border: 1px solid #35476e;
  border-radius: 10px;
  padding: 6px 14px;
  font-size: 18px;
  font-weight: 700;
  min-width: 110px;
  justify-content: center;
}

#hud-lux #lux-count { color: #ffe08a; }

#hud-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.hud-btn {
  width: 42px;
  height: 42px;
  font-size: 18px;
  background: #1c2742;
  border: 1px solid #35476e;
  border-radius: 10px;
  color: #eef3ff;
  cursor: pointer;
  transition: transform .08s, border-color .08s;
}

.hud-btn:hover {
  transform: translateY(-1px);
  border-color: #ffd97a;
}

/* ---------- 卡牌選擇列 ---------- */
#card-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 8px 0 10px;
}

.card {
  position: relative;
  width: 96px;
  background: #1c2742;
  border: 2px solid #35476e;
  border-radius: 10px;
  padding: 8px 4px 6px;
  text-align: center;
  cursor: pointer;
  transition: transform .08s, border-color .08s;
  overflow: hidden;
}

.card:hover { transform: translateY(-2px); }

.card.selected {
  border-color: #ffd97a;
  box-shadow: 0 0 10px rgba(255, 217, 122, .45);
}

.card.unaffordable { filter: grayscale(.7) brightness(.7); }

.card .card-emoji { font-size: 30px; line-height: 1.2; }
.card .card-name  { font-size: 12px; margin-top: 2px; color: #cdd9f5; }
.card .card-cost  { font-size: 13px; font-weight: 700; color: #ffe08a; }

/* 冷卻遮罩：由上往下退去，height 由 JS 控制 */
.card .card-cd {
  position: absolute;
  left: 0; top: 0; width: 100%;
  background: rgba(8, 12, 24, .78);
  pointer-events: none;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  color: #9fb2dc;
  font-size: 12px;
}

/* ---------- 戰場 ---------- */
#canvas-wrap { position: relative; }

canvas {
  display: block;
  border-radius: 12px;
  border: 2px solid #35476e;
  background: #16203a;
  cursor: pointer;
  /* 內部解析度固定 912×528，CSS 縮放跟隨螢幕；
     輸入座標換算在 main.js 用 getBoundingClientRect 比例處理 */
  width: min(912px, 100%);
  height: auto;
  touch-action: manipulation;   /* 觸控時停用雙擊縮放 */
}

/* 波次橫幅 */
#banner {
  position: absolute;
  top: 40%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 44px;
  font-weight: 900;
  color: #ff8a8a;
  text-shadow: 0 0 18px rgba(255, 80, 80, .6), 2px 2px 0 #000;
  pointer-events: none;
  animation: banner-pop 2.4s ease forwards;
  white-space: nowrap;
}

@keyframes banner-pop {
  0%   { opacity: 0; transform: translate(-50%, -50%) scale(.5); }
  15%  { opacity: 1; transform: translate(-50%, -50%) scale(1.1); }
  25%  { transform: translate(-50%, -50%) scale(1); }
  80%  { opacity: 1; }
  100% { opacity: 0; }
}

/* ---------- Toast 提示 ---------- */
#toast {
  position: fixed;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(20, 28, 50, .95);
  border: 1px solid #ffd97a;
  color: #ffe9b0;
  padding: 10px 22px;
  border-radius: 24px;
  font-size: 15px;
  pointer-events: none;
  transition: opacity .25s;
  z-index: 30;
}

/* ---------- 全螢幕畫面（開始 / 勝利 / 失敗） ---------- */
.screen {
  position: fixed;
  inset: 0;
  background: rgba(8, 12, 24, .88);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 20;
}

.screen-box {
  background: #1c2742;
  border: 2px solid #35476e;
  border-radius: 16px;
  padding: 36px 48px;
  text-align: center;
  max-width: 460px;
}

.screen-box h2 {
  font-size: 34px;
  margin-bottom: 8px;
  color: #ffd97a;
}

.screen-sub { color: #cdd9f5; margin-bottom: 18px; }

.howto {
  list-style: none;
  text-align: left;
  margin: 0 auto 22px;
  width: fit-content;
  line-height: 2;
  color: #dfe8ff;
}

.btn-main {
  font-size: 18px;
  font-weight: 700;
  padding: 12px 40px;
  border: none;
  border-radius: 10px;
  background: linear-gradient(180deg, #ffd97a, #f5a623);
  color: #3a2a00;
  cursor: pointer;
  transition: transform .08s, box-shadow .08s;
}

.btn-main:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 18px rgba(255, 217, 122, .4);
}

.btn-endless {
  display: block;
  margin: 10px auto 0;
  background: linear-gradient(180deg, #b79aff, #7a5cff);
  color: #1a0f3d;
}

.btn-endless:hover { box-shadow: 0 4px 18px rgba(150, 120, 255, .45); }

.btn-sub {
  display: block;
  margin: 12px auto 0;
  font-size: 14px;
  padding: 8px 24px;
  border: 1px solid #35476e;
  border-radius: 10px;
  background: transparent;
  color: #cdd9f5;
  cursor: pointer;
}

.btn-sub:hover { border-color: #ffd97a; color: #ffe9b0; }

.btn-link {
  width: fit-content;
  text-decoration: none;
}

/* ---------- 遊戲說明 ---------- */
.help-box { max-width: 640px; }

.help-scroll {
  max-height: 60vh;
  overflow-y: auto;
  text-align: left;
  margin-bottom: 18px;
  padding-right: 8px;
}

.help-scroll h3 {
  color: #ffd97a;
  margin: 14px 0 6px;
  font-size: 16px;
}

.help-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  margin: 4px 0 8px;
}

.help-table th, .help-table td {
  border: 1px solid #35476e;
  padding: 5px 8px;
  text-align: left;
}

.help-table th { background: #24304f; color: #ffd97a; }

.hidden { display: none !important; }

/* ---------- 小螢幕（手機直向） ---------- */
@media (max-width: 700px) {
  #app { padding: 6px 8px 16px; }

  #hud { flex-wrap: wrap; gap: 8px; }
  #hud-title { font-size: 15px; letter-spacing: 2px; order: -1; width: 100%; text-align: center; }
  .hud-item { font-size: 14px; min-width: 80px; padding: 4px 10px; }
  .hud-btn { width: 36px; height: 36px; font-size: 15px; }

  .card { width: 64px; padding: 5px 2px 4px; }
  .card .card-emoji { font-size: 22px; }
  .card .card-name  { font-size: 10px; }
  .card .card-cost  { font-size: 11px; }

  #banner { font-size: 28px; }
  .screen-box { padding: 24px 20px; max-width: 92vw; }
  .screen-box h2 { font-size: 26px; }
  .howto { line-height: 1.7; font-size: 14px; }
}