:root {
  --bg-color: #f5f5f7;
  --card-bg: #ffffff;
  --border-color: rgba(0, 0, 0, 0.08);
  --text-main: #1d1d1f;
  --text-muted: #86868b;
  --accent-blue: #007aff;
  --accent-green: #34c759;
  --accent-red: #ff3b30;
  --accent-orange: #ff9500;
  --accent-purple: #af52de;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  background: var(--bg-color);
  color: var(--text-main);
  font-family: 'Tajawal', sans-serif;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
.container { max-width: 900px; margin: 0 auto; padding: 0 16px; }

/* Header */
header {
  text-align: center;
  padding: 40px 16px 20px;
}
.logo-icon { font-size: 32px; margin-bottom: 8px; display: inline-block; }
.sub-logo { font-size: 15px; color: var(--text-muted); font-weight: 500; }

/* Stats bar */
.stats-bar {
  display: flex; gap: 10px; justify-content: center; flex-wrap: wrap;
  padding: 16px 0; margin: 0 auto;
}
.stat-pill {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 500;
  box-shadow: 0 2px 8px rgba(0,0,0,0.02);
}
.stat-pill span { color: var(--accent-blue); font-weight: 700; }

/* Date banner */
.date-banner {
  text-align: center;
  font-size: 14px;
  color: var(--text-muted);
  margin: 8px 0 24px;
  font-weight: 500;
}

/* Game Grid */
.games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  padding: 8px 0 40px;
}
.game-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 24px;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  position: relative;
  box-shadow: 0 4px 16px rgba(0,0,0,0.03);
}
.game-card:hover { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(0,0,0,0.08); }
.game-icon { font-size: 32px; margin-bottom: 12px; display: block; }
.game-name { font-size: 18px; font-weight: 700; margin-bottom: 6px; }
.game-desc { font-size: 13px; color: var(--text-muted); line-height: 1.5; }
.game-best {
  margin-top: 16px;
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
}

/* Modal */
.overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 100;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.overlay.active { display: flex; }
.game-modal {
  background: var(--card-bg);
  border-radius: 24px;
  width: 100%; max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 30px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.15);
  animation: scale-up 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes scale-up {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}
.modal-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 24px;
}
.modal-title { font-size: 22px; font-weight: 700; }
.close-btn {
  background: var(--bg-color); border: none;
  color: var(--text-muted); border-radius: 50%;
  width: 32px; height: 32px; cursor: pointer; font-size: 14px;
  display: flex; align-items: center; justify-content: center;
}
.score-display {
  display: flex; justify-content: center; gap: 16px;
  margin-bottom: 24px;
}
.score-box {
  text-align: center;
  background: var(--bg-color);
  border-radius: 12px;
  padding: 12px 20px;
  min-width: 80px;
}
.score-label { font-size: 12px; color: var(--text-muted); margin-bottom: 4px; }
.score-value { font-size: 20px; font-weight: 700; color: var(--accent-blue); }

/* Generic Elements */
.btn {
  background: var(--bg-color);
  border: none;
  color: var(--text-main);
  border-radius: 12px;
  padding: 12px 24px;
  font-size: 15px;
  font-family: 'Tajawal', sans-serif;
  cursor: pointer;
  transition: background 0.2s;
  font-weight: 700;
}
.btn:hover { background: #e5e5ea; }
.btn.primary { background: var(--accent-blue); color: #fff; }
.btn.primary:hover { background: #0066d6; }

/* Snake Game Fix */
#snakeCanvas {
  display: block; margin: 0 auto;
  border-radius: 12px;
  background: #f0f0f5;
  width: 100%;
  max-width: 320px;
  height: auto;
  aspect-ratio: 1/1;
}

/* Toast */
.toast {
  position: fixed; bottom: 32px; left: 50%; transform: translateX(-50%);
  background: rgba(0,0,0,0.8); color: #fff;
  border-radius: 20px; padding: 12px 24px;
  font-size: 14px; font-weight: 500; z-index: 999;
  animation: toast-in 0.3s ease;
}
@keyframes toast-in { from{opacity:0;transform:translate(-50%, 10px)} to{opacity:1;transform:translate(-50%, 0)} }
  /* الوضع الليلي (Dark Mode) */
body.dark-mode {
  --bg-color: #000000;
  --card-bg: #1c1c1e;
  --border-color: rgba(255, 255, 255, 0.1);
  --text-main: #f5f5f7;
  --text-muted: #98989d;
}

/* أزرار التحكم باللغة والمظهر */
.top-controls {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 16px 0 0;
}
.icon-btn {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  border-radius: 50%;
  width: 42px; height: 42px;
  font-size: 16px; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: 0.2s; font-family: 'Tajawal', sans-serif; font-weight: bold;
}
.icon-btn:hover { transform: scale(1.05); }
  /* ----------------------------------- */
/* إصلاح شبكة لعبة تطابق الذاكرة (Memory Grid) */
/* ----------------------------------- */
.memory-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr); /* 4 أعمدة للبطاقات */
  gap: 12px;
  margin-top: 16px;
}

/* ----------------------------------- */
/* إصلاح أزرار التحكم للعبة الثعبان (DPAD) */
/* ----------------------------------- */
.dpad {
  display: grid;
  grid-template-columns: repeat(3, 1fr); /* شبكة 3x3 لترتيب الأسهم */
  gap: 8px;
  max-width: 220px;
  margin: 24px auto 0;
}
.dpad button {
  background: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 16px 0;
  font-size: 20px;
  cursor: pointer;
  color: var(--text-main);
  transition: all 0.2s;
  box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}
.dpad button:active {
  transform: scale(0.95);
  background: var(--border-color);
}
/* إخفاء المربعات الفارغة في زوايا أزرار التحكم */
.dpad div {
  pointer-events: none;
}

/* تنسيقات جدول لوحة الصدارة */
.leaderboard-table { width: 100%; border-collapse: collapse; text-align: right; }
.leaderboard-table th, .leaderboard-table td { padding: 12px; border-bottom: 1px solid var(--border-color); }
.leaderboard-table th { color: var(--text-muted); font-size: 13px; font-weight: 500; }
.leaderboard-table tr:first-child td { font-weight: 700; color: var(--accent-orange); font-size: 16px; }