/*
 * web/games/shared/style.css
 * 所有 web 游戏共享的基础配色、按钮、卡片、返回主页样式
 * 每个游戏 index.html 通过 <link rel="stylesheet" href="../shared/style.css"> 引入
 */

:root {
  /* 主题配色（与 web/index.html 呼应） */
  --bg-1: #0f2027;
  --bg-2: #203a43;
  --bg-3: #2c5364;

  --card-bg: rgba(255, 255, 255, 0.08);
  --card-bg-hover: rgba(255, 255, 255, 0.14);
  --card-border: rgba(255, 255, 255, 0.16);
  --text: #f2f4f8;
  --text-dim: rgba(242, 244, 248, 0.62);
  --text-muted: rgba(242, 244, 248, 0.4);

  --accent: #7dd3fc;
  --success: #22c55e;
  --warning: #fbbf24;
  --danger: #ef4444;
  --gold: #ffd700;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}

body {
  background: linear-gradient(160deg, var(--bg-1), var(--bg-2), var(--bg-3) 60%, var(--bg-1));
  background-size: 200% 200%;
  animation: bgShift 24s ease-in-out infinite;
  min-height: 100vh;
}

@keyframes bgShift {
  0%   { background-position: 0% 0%; }
  50%  { background-position: 100% 100%; }
  100% { background-position: 0% 0%; }
}

/* ==================== 顶部导航 ==================== */

.game-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 18px;
  gap: 12px;
  max-width: 720px;
  margin: 0 auto;
}

.game-header .back-btn,
.game-header .help-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text);
  text-decoration: none;
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  transition: background .15s, transform .1s;
  user-select: none;
}
.game-header .back-btn:hover,
.game-header .help-btn:hover { background: var(--card-bg-hover); }
.game-header .back-btn:active,
.game-header .help-btn:active { transform: scale(0.94); }

.game-header .title {
  flex: 1;
  text-align: center;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 2px;
}

/* ==================== 通用按钮 ==================== */

.btn {
  appearance: none;
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  color: var(--text);
  padding: 10px 20px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: background .15s, transform .08s, border-color .15s;
  min-width: 88px;
  font-family: inherit;
}
.btn:hover { background: var(--card-bg-hover); border-color: rgba(255, 255, 255, 0.28); }
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn:disabled:hover { background: var(--card-bg); border-color: var(--card-border); }

.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #0f2027;
  font-weight: 600;
}
.btn.primary:hover { background: #93dcff; border-color: #93dcff; }

.btn.success {
  background: var(--success);
  border-color: var(--success);
  color: #0a1f0f;
  font-weight: 600;
}
.btn.success:hover { background: #34d366; border-color: #34d366; }

.btn.danger {
  background: var(--danger);
  border-color: var(--danger);
  color: #fff;
}
.btn.danger:hover { background: #f26262; border-color: #f26262; }

/* ==================== 卡片 ==================== */

.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 20px;
  backdrop-filter: blur(10px);
}

/* ==================== 弹框 ==================== */

.modal-mask {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
  padding: 20px;
  animation: fadeIn .18s ease;
}
.modal-mask.hide { display: none; }
.modal-mask .modal {
  background: linear-gradient(160deg, #1a2a3a, #0f1a24);
  border: 1px solid var(--card-border);
  border-radius: 18px;
  padding: 24px 22px;
  max-width: 420px;
  width: 100%;
  box-shadow: 0 24px 60px rgba(0, 0, 0, .5);
  animation: popIn .22s ease;
}
.modal h2 {
  margin: 0 0 14px;
  font-size: 20px;
  color: var(--accent);
}
.modal p { line-height: 1.6; color: var(--text-dim); }
.modal .modal-footer {
  display: flex; justify-content: flex-end;
  gap: 10px; margin-top: 20px;
}

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes popIn {
  from { opacity: 0; transform: scale(.9); }
  to   { opacity: 1; transform: scale(1); }
}

/* ==================== 页容器 ==================== */

.game-app {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 18px 40px;
}

/* ==================== 屏幕适配 ==================== */

@media (max-width: 480px) {
  .game-header .title { font-size: 16px; letter-spacing: 1px; }
  .btn { padding: 9px 16px; font-size: 14px; min-width: 76px; }
}