/* ============================================================
   EasyPlay TW — 全站共用樣式
   設計原則：字體大、按鈕大、高對比、長輩友善

   Copyright (c) 2026 EasyPlay TW. All rights reserved.
   Original source code and UI design are protected by copyright.
   See LICENSE for details.
   ============================================================ */

/* ── CSS 自訂變數 ── */
:root {
  /* 字體大小 */
  --font-size-sm:    16px;
  --font-size-base:  18px;  /* 最小字體 */
  --font-size-md:    20px;
  --font-size-title: 24px;  /* 遊戲標題 */
  --font-size-score: 28px;  /* 分數顯示 */
  --font-size-hero:  36px;  /* 首頁大標題 */

  /* 按鈕最小尺寸（WCAG 標準） */
  --button-min-size: 48px;

  /* 色彩 */
  --color-bg:          #FFF9F0;  /* 米白背景，護眼 */
  --color-bg-card:     #FFFFFF;
  --color-primary:     #D4380D;  /* 台灣紅 */
  --color-primary-dark:#A82A09;
  --color-secondary:   #FA8C16;  /* 橙色輔助 */
  --color-text:        #1A1A1A;  /* 深色文字，高對比 */
  --color-text-muted:  #555555;
  --color-border:      #E8DDD0;
  --color-success:     #389E0D;
  --color-badge-new:   #D4380D;
  --color-badge-hot:   #FA541C;

  /* 圓角 */
  --border-radius:    12px;
  --border-radius-sm:  8px;
  --border-radius-lg: 16px;

  /* 陰影 */
  --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 6px 20px rgba(212, 56, 13, 0.15);

  /* 字體 */
  --font-family: "Microsoft JhengHei", "PingFang TC", "Noto Sans TC", "微軟正黑體", sans-serif;

  /* 間距 */
  --spacing-xs:  4px;
  --spacing-sm:  8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 40px;
}

/* ── 全域工具類別 ── */
.hidden { display: none !important; }

/* ── 夜間模式變數（覆蓋 :root） ── */
[data-theme="dark"] {
  --color-bg:          #0f0f13;
  --color-bg-card:     #1e1e28;
  --color-primary:     #ff6b47;   /* 夜間版台灣紅，稍亮以維持對比 */
  --color-primary-dark:#e0522e;
  --color-secondary:   #ffa040;
  --color-text:        #e8e4de;
  --color-text-muted:  #a09a92;
  --color-border:      #38343a;
  --color-success:     #52c41a;
  --color-badge-new:   #ff6b47;
  --color-badge-hot:   #fa7540;
  --shadow-card:       0 2px 12px rgba(0, 0, 0, 0.4);
  --shadow-hover:      0 6px 20px rgba(255, 107, 71, 0.25);
}

/* Hero 夜間 */
[data-theme="dark"] .hero {
  background: linear-gradient(135deg, #1a1530 0%, #16131e 50%, #1a1530 100%);
  border-color: #2e2a40;
}

/* 遊戲卡片縮圖夜間 */
[data-theme="dark"] .game-card__thumb {
  background: linear-gradient(135deg, #1e1a30 0%, #2a2040 100%);
}
[data-theme="dark"] [data-category="puzzle"]  .game-card__thumb { background: linear-gradient(135deg, #1a2818 0%, #1e3020 100%); }
[data-theme="dark"] [data-category="board"]   .game-card__thumb { background: linear-gradient(135deg, #181e28 0%, #1a2535 100%); }
[data-theme="dark"] [data-category="action"]  .game-card__thumb { background: linear-gradient(135deg, #28201a 0%, #302818 100%); }
[data-theme="dark"] [data-category="memory"]  .game-card__thumb { background: linear-gradient(135deg, #281a22 0%, #301e28 100%); }

[data-theme="dark"] .game-card:hover .game-card__thumb {
  background: linear-gradient(135deg, #2a2040 0%, #362850 100%);
}
[data-theme="dark"] [data-category="puzzle"]:hover  .game-card__thumb { background: linear-gradient(135deg, #1e3020 0%, #254028 100%); }
[data-theme="dark"] [data-category="board"]:hover   .game-card__thumb { background: linear-gradient(135deg, #1a2535 0%, #203042 100%); }
[data-theme="dark"] [data-category="action"]:hover  .game-card__thumb { background: linear-gradient(135deg, #302818 0%, #3a3020 100%); }
[data-theme="dark"] [data-category="memory"]:hover  .game-card__thumb { background: linear-gradient(135deg, #301e28 0%, #3a2530 100%); }

/* Emoji 底板夜間 */
[data-theme="dark"] .game-card__thumb > span[role="img"] {
  background: rgba(255,255,255,0.08);
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

/* 按鈕夜間 */
[data-theme="dark"] .category-btn {
  background: #1e1e28;
  color: var(--color-text);
  box-shadow: 0 1px 4px rgba(0,0,0,0.2);
}

/* 分數徽章夜間 */
[data-theme="dark"] .game-card__score {
  background: rgba(255,107,71,0.12);
}

/* 數獨格子夜間 */
[data-theme="dark"] .sudoku-cell         { background: #1e1e28; color: var(--color-primary); }
[data-theme="dark"] .sudoku-cell.given   { background: #28283a; color: #c8c4be; }
[data-theme="dark"] .sudoku-cell.selected { background: #3d3010; }
[data-theme="dark"] .sudoku-cell.highlight { background: #252030; }
[data-theme="dark"] .sudoku-cell.same-num  { background: #4a3818; }
[data-theme="dark"] .sudoku-cell.error    { background: #3d1018; color: #ff6b6b; }
[data-theme="dark"] .sudoku-board         { background: #555; }

/* 踩地雷夜間 */
[data-theme="dark"] .mine-cell          { background: #2a2a38; border-color: #444; color: var(--color-text); }
[data-theme="dark"] .mine-cell.revealed { background: #18181f; border-color: #333; }
[data-theme="dark"] .mine-cell.flagged  { background: #3a2e10; border-color: #806020; }

/* 記憶翻牌夜間 */
[data-theme="dark"] .memory-card        { border-color: #38343a; }  /* 不設 background，兩面各自有背景色 */
[data-theme="dark"] .memory-card .card-back { background: linear-gradient(135deg, #c0320a 0%, #d0700a 100%); }
[data-theme="dark"] .memory-card .card-front { background: #1e1e28; }
[data-theme="dark"] .memory-card.matched { border-color: #2a5a1a; }
[data-theme="dark"] .memory-card.matched .card-front { background: #102010; }

/* 麻將夜間 */
[data-theme="dark"] .mahjong-cell       { background: linear-gradient(135deg, #2a2518 0%, #1e1c12 100%); border-color: #444; }
[data-theme="dark"] .mahjong-cell.blocked { background: linear-gradient(135deg, #1a1a22 0%, #141418 100%); color: #555; }

/* Modal 夜間 */
[data-theme="dark"] .modal-box         { background: #1e1e28; }
[data-theme="dark"] .modal-overlay     { background: rgba(0, 0, 0, 0.75); }

/* ── 夜間模式切換按鈕 + 說明按鈕 ── */
.theme-toggle-btn,
.help-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  min-height: var(--button-min-size);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-sm);
  border: 2px solid rgba(255, 255, 255, 0.4);
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  font-size: 16px;
  font-family: var(--font-family);
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
  white-space: nowrap;
  margin-left: auto;
}

.theme-toggle-btn:hover,
.help-toggle-btn:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* ── 重置 & 基礎 ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
  display: block;
}

/* ── 頁首（Header） ── */
.site-header {
  background-color: var(--color-primary);
  color: #fff;
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header .logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: #fff;
  text-decoration: none;
}

.site-header .logo-text {
  font-size: var(--font-size-title);
  font-weight: 700;
  letter-spacing: 1px;
}

.site-header .logo-sub {
  font-size: var(--font-size-sm);
  opacity: 1;          /* 改為全不透明，避免對比度不足 */
  color: rgba(255,255,255,0.92);
}

.site-header .back-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: #fff;
  background: rgba(255,255,255,0.2);
  border: 2px solid rgba(255,255,255,0.4);
  border-radius: var(--border-radius-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-base);
  font-family: var(--font-family);
  cursor: pointer;
  text-decoration: none;
  min-height: var(--button-min-size);
  transition: background 0.2s;
}

.site-header .back-btn:hover {
  background: rgba(255,255,255,0.35);
  text-decoration: none;
}

/* 右側按鈕群 */
.header-right {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-left: auto;  /* 推到最右側 */
}

/* ── 主內容區 ── */
.main-content {
  max-width: 1100px;
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-md);
}

/* ── 英雄區塊（首頁大標） ── */
.hero {
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-md);
  background: linear-gradient(135deg, #fff5eb 0%, #ffe8d6 50%, #fff5eb 100%);
  border-radius: var(--border-radius-lg);
  margin-bottom: var(--spacing-lg);
  border: 1px solid #f5ddc8;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '🎮 🀄 🔢 🃏 💣 🐍 💎 ♟️ 🧱';
  position: absolute;
  top: 10px;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 20px;
  opacity: 0.12;
  white-space: nowrap;
  pointer-events: none;
  letter-spacing: 16px;
  animation: heroFloat 6s ease-in-out infinite;
}

@keyframes heroFloat {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-6px); }
}

.hero h1 {
  font-size: var(--font-size-hero);
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
  text-shadow: 0 1px 2px rgba(212,56,13,0.15);
}

.hero .hero-sub {
  font-size: var(--font-size-md);
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-lg);
}

.hero .hero-tags {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--spacing-md);
}

.hero .hero-tag {
  background: rgba(255,255,255,0.85);
  border: 1.5px solid var(--color-border);
  border-radius: 999px;
  padding: 5px 16px;
  font-size: 15px;
  color: var(--color-text-muted);
  font-weight: 500;
  backdrop-filter: blur(4px);
  transition: transform 0.2s, box-shadow 0.2s;
}

.hero .hero-tag:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

/* 向下相容舊 .hero p */
.hero p {
  font-size: var(--font-size-md);
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-lg);
}

/* ── 分類篩選列 ── */
.category-bar {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: var(--spacing-lg);
}

.category-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 999px;
  border: 2px solid var(--color-border);
  background: var(--color-bg-card);
  color: var(--color-text);
  font-size: var(--font-size-base);
  font-family: var(--font-family);
  cursor: pointer;
  min-height: var(--button-min-size);
  transition: all 0.25s;
  font-weight: 500;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}

.category-btn:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 12px rgba(212,56,13,0.2);
  transform: translateY(-1px);
}

.category-btn.active {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  border-color: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 16px rgba(212,56,13,0.25);
}

/* ── 區塊標題 ── */
.section-title {
  font-size: var(--font-size-title);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--spacing-md);
  padding-left: 14px;
  border-left: 4px solid transparent;
  border-image: linear-gradient(180deg, var(--color-primary), var(--color-secondary)) 1;
}

/* ── 遊戲網格 ── */
.games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--spacing-lg);
}

/* ── 遊戲卡片 ── */
.game-card {
  background: var(--color-bg-card);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.3s cubic-bezier(.34,1.56,.64,1), box-shadow 0.3s;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  border: 2px solid transparent;
  /* 入場動畫 */
  opacity: 0;
  animation: cardFadeIn 0.5s ease forwards;
}

/* 交錯動畫延遲 */
.game-card:nth-child(1)  { animation-delay: 0.00s; }
.game-card:nth-child(2)  { animation-delay: 0.05s; }
.game-card:nth-child(3)  { animation-delay: 0.10s; }
.game-card:nth-child(4)  { animation-delay: 0.15s; }
.game-card:nth-child(5)  { animation-delay: 0.20s; }
.game-card:nth-child(6)  { animation-delay: 0.25s; }
.game-card:nth-child(7)  { animation-delay: 0.30s; }
.game-card:nth-child(8)  { animation-delay: 0.35s; }
.game-card:nth-child(9)  { animation-delay: 0.40s; }
.game-card:nth-child(10) { animation-delay: 0.45s; }
.game-card:nth-child(11) { animation-delay: 0.50s; }
.game-card:nth-child(12) { animation-delay: 0.55s; }
.game-card:nth-child(13) { animation-delay: 0.60s; }
.game-card:nth-child(14) { animation-delay: 0.65s; }

@keyframes cardFadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.game-card:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: var(--shadow-hover);
  border-color: var(--color-primary);
  text-decoration: none;
}

.game-card__thumb {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, #fff3e6 0%, #ffe0c0 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 64px;
  position: relative;
  transition: background 0.3s;
  overflow: hidden;
}

/* Emoji 圓形底板 */
.game-card__thumb > span[role="img"] {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: rgba(255,255,255,0.7);
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  transition: transform 0.4s cubic-bezier(.34,1.56,.64,1), box-shadow 0.3s;
}

.game-card:hover .game-card__thumb > span[role="img"] {
  transform: scale(1.12) rotate(-3deg);
  box-shadow: 0 8px 30px rgba(212,56,13,0.15);
}

/* 類別色條 — 放在縮圖底部 */
.game-card__thumb::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--color-primary);
  opacity: 0;
  transition: opacity 0.3s;
}

.game-card:hover .game-card__thumb::after {
  opacity: 1;
}

/* 依類別微調縮圖底色 */
[data-category="puzzle"]  .game-card__thumb { background: linear-gradient(135deg, #e8f5e9 0%, #c8e6c9 100%); }
[data-category="board"]   .game-card__thumb { background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%); }
[data-category="action"]  .game-card__thumb { background: linear-gradient(135deg, #fff3e0 0%, #ffe0b2 100%); }
[data-category="memory"]  .game-card__thumb { background: linear-gradient(135deg, #fce4ec 0%, #f8bbd0 100%); }

.game-card:hover .game-card__thumb {
  background: linear-gradient(135deg, #ffe0c0 0%, #ffd0a0 100%);
}

/* 類別 hover 色 */
[data-category="puzzle"]:hover  .game-card__thumb { background: linear-gradient(135deg, #c8e6c9 0%, #a5d6a7 100%); }
[data-category="board"]:hover   .game-card__thumb { background: linear-gradient(135deg, #bbdefb 0%, #90caf9 100%); }
[data-category="action"]:hover  .game-card__thumb { background: linear-gradient(135deg, #ffe0b2 0%, #ffcc80 100%); }
[data-category="memory"]:hover  .game-card__thumb { background: linear-gradient(135deg, #f8bbd0 0%, #f48fb1 100%); }

.game-card__badge {
  position: absolute;
  top: var(--spacing-sm);
  left: var(--spacing-sm);
  background: var(--color-badge-new);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  padding: 3px 12px;
  border-radius: 999px;
  letter-spacing: 0.5px;
  box-shadow: 0 2px 8px rgba(212,56,13,0.3);
}

/* 「新遊戲」脈動動畫 */
.game-card__badge {
  animation: badgePulse 2s ease-in-out infinite;
}

@keyframes badgePulse {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.06); }
}

.game-card__body {
  padding: var(--spacing-md);
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.game-card__name {
  font-size: var(--font-size-title);
  font-weight: 700;
  color: var(--color-text);
  transition: color 0.2s;
}

.game-card:hover .game-card__name {
  color: var(--color-primary);
}

.game-card__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.game-card__meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-top: auto;
  padding-top: var(--spacing-sm);
}

.game-card__difficulty {
  font-size: 13px;
  color: #fff;
  padding: 2px 10px;
  border-radius: 999px;
  background: var(--color-success);
  font-weight: 600;
  letter-spacing: 0.3px;
}

.game-card__score {
  margin-left: auto;
  font-size: 14px;
  color: var(--color-primary);
  font-weight: 700;
  background: rgba(212,56,13,0.08);
  padding: 2px 10px;
  border-radius: 999px;
}

/* ── 遊戲頁面（個別遊戲使用） ── */
.game-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--spacing-lg) var(--spacing-md);
}

.game-title {
  font-size: var(--font-size-hero);
  color: var(--color-primary);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  text-align: center;
}

.game-info-bar {
  display: flex;
  gap: var(--spacing-lg);
  align-items: center;
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-md);
  flex-wrap: wrap;
  justify-content: center;
}

.game-score-label {
  color: var(--color-text-muted);
}

.game-score-value {
  font-size: var(--font-size-score);
  font-weight: 700;
  color: var(--color-primary);
  min-width: 60px;
  text-align: center;
}

.game-highscore {
  font-size: var(--font-size-base);
  color: var(--color-text-muted);
}

/* 遊戲區域容器 */
.game-canvas-wrap {
  background: var(--color-bg-card);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-card);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  width: 100%;          /* 撐滿 flex 父層可用寬度 */
  max-width: 660px;     /* 但不超過遊戲需要的寬度 */
  box-sizing: border-box;
}

/* ── 按鈕 ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  min-height: var(--button-min-size);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--border-radius);
  border: none;
  font-size: var(--font-size-base);
  font-family: var(--font-family);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-primary-dark);
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
  background: var(--color-primary);
  color: #fff;
}

.btn-line {
  background: #06C755;
  color: #fff;
}

.btn-line:hover {
  background: #05a847;
}

.btn-lg {
  font-size: var(--font-size-title);
  padding: var(--spacing-md) var(--spacing-xl);
  min-height: 60px;
}

/* ── 模態對話框（遊戲結束） ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: var(--spacing-md);
}

.modal-overlay.hidden {
  display: none;
}

.modal-box {
  background: var(--color-bg-card);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  max-width: 420px;
  width: 100%;
  text-align: center;
  box-shadow: 0 8px 40px rgba(0,0,0,0.25);
}

.modal-box h2 {
  font-size: var(--font-size-hero);
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.modal-box .modal-score {
  font-size: 48px;
  font-weight: 700;
  color: var(--color-text);
  margin: var(--spacing-md) 0;
}

.modal-box .modal-actions {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  margin-top: var(--spacing-lg);
  flex-wrap: wrap;
}

/* ── 遊戲說明 Modal ── */
.help-modal {
  max-width: 480px;
  max-height: 85vh;
  overflow-y: auto;
  text-align: left;
}

.help-modal h2 {
  text-align: center;
  margin-bottom: var(--spacing-md);
}

.help-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.help-section h3 {
  font-size: var(--font-size-md);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.help-body {
  font-size: var(--font-size-base);
  color: var(--color-text);
  line-height: 1.7;
}

.help-body ul {
  list-style: none;
  padding: 0;
}

.help-body li {
  padding: 3px 0 3px 1.5em;
  position: relative;
}

.help-body li::before {
  content: '•';
  position: absolute;
  left: 0.4em;
  color: var(--color-primary);
  font-weight: 700;
}

.help-modal .modal-actions {
  margin-top: var(--spacing-lg);
  justify-content: center;
}

/* help-modal 表格 */
.help-body table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
  margin-top: 6px;
}

.help-body th,
.help-body td {
  padding: 5px 10px;
  border: 1px solid var(--color-border);
  text-align: center;
}

.help-body th {
  background: rgba(212, 56, 13, 0.08);
  font-weight: 700;
  color: var(--color-primary);
}

[data-theme="dark"] .help-body th {
  background: rgba(255, 107, 71, 0.12);
}

/* ── 頁尾（Footer） ── */
.site-footer {
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-md);
  border-top: 3px solid transparent;
  border-image: linear-gradient(90deg, transparent, var(--color-primary), var(--color-secondary), transparent) 1;
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-xl);
}

.site-footer a {
  color: var(--color-text-muted);
}

.footer-feedback {
  margin-top: var(--spacing-md);
  font-size: var(--font-size-base);
}

.footer-feedback a {
  color: var(--color-primary);
  font-weight: 600;
}

.footer-legal {
  margin-top: var(--spacing-md);
  font-size: 0.78rem;
  color: #aaa;
  line-height: 1.6;
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: var(--spacing-sm);
}

.footer-legal a {
  color: #bbb;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.footer-version {
  margin-top: var(--spacing-sm);
  font-size: 0.75rem;
  color: #aaa;
  letter-spacing: 0.05em;
}

/* ── 通知 Toast ── */
.toast {
  position: fixed;
  bottom: var(--spacing-lg);
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: #333;
  color: #fff;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--border-radius);
  font-size: var(--font-size-base);
  z-index: 2000;
  transition: transform 0.3s ease;
  white-space: nowrap;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
}

/* ── 響應式 ── */
@media (max-width: 600px) {
  :root {
    --font-size-hero: 28px;
    --font-size-title: 20px;
    --font-size-score: 24px;
  }

  .games-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }

  .game-card__thumb {
    font-size: 48px;
  }

  .hero {
    padding: var(--spacing-lg) var(--spacing-md);
  }
}

@media (max-width: 360px) {
  .games-grid {
    grid-template-columns: 1fr;
  }
}