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

:root {
  --bg: #070a14;
  --card: #111827;
  --card-2: #151d31;
  --border: #29324a;
  --purple: #7657ff;
  --green: #a7ff00;
  --text: #ffffff;
  --muted: #8994b3;
  --yellow: #ffd92f;
}

body {
  min-height: 100vh;
  background:
    radial-gradient(circle at 50% 0%, rgba(118, 87, 255, 0.13), transparent 35%),
    #070a14;
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
}

/* HEADER */

.game-header {
  height: 72px;
  padding: 0 6%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #20273a;
  background: rgba(7, 10, 20, 0.96);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: white;
  font-size: 23px;
  font-weight: 800;
}

.logo-icon {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: linear-gradient(135deg, #7657ff, #22c9ff);
  font-size: 20px;
}

.back-btn {
  color: #aab4d0;
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
  padding: 10px 16px;
  border: 1px solid #303951;
  border-radius: 10px;
  transition: 0.2s ease;
}

.back-btn:hover {
  color: white;
  border-color: var(--purple);
  background: rgba(118, 87, 255, 0.1);
}

/* MAIN */

.game-page {
  width: min(1100px, 94%);
  margin: 0 auto;
  padding: 45px 0 70px;
}

.game-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 30px;
  margin-bottom: 25px;
}

.game-category {
  display: inline-block;
  color: #b4a8ff;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 1px;
  margin-bottom: 10px;
}

.game-top h1 {
  font-size: clamp(38px, 5vw, 58px);
  line-height: 1;
  margin-bottom: 12px;
  font-weight: 900;
}

.game-top p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.6;
}

/* STATS */

.stats {
  display: flex;
  gap: 10px;
}

.stat {
  min-width: 100px;
  padding: 13px 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(17, 24, 39, 0.85);
  text-align: center;
}

.stat span {
  display: block;
  color: var(--muted);
  font-size: 11px;
  margin-bottom: 5px;
  text-transform: uppercase;
  font-weight: 700;
}

.stat strong {
  font-size: 20px;
  color: white;
}

/* GAME CARD */

.game-card {
  border: 1px solid var(--border);
  border-radius: 20px;
  background: linear-gradient(145deg, #0e1424, #0b1020);
  padding: 24px;
  box-shadow: 0 25px 80px rgba(0, 0, 0, 0.35);
  text-align: center;
}

.game-status {
  height: 35px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #aeb8d2;
  font-size: 13px;
  font-weight: 600;
}

#gameCanvas {
  display: block;
  width: min(560px, 100%);
  height: auto;
  margin: 0 auto;
  background: #050812;
  border: 2px solid #252d48;
  border-radius: 12px;
  box-shadow:
    0 0 40px rgba(72, 71, 255, 0.12),
    inset 0 0 30px rgba(0, 0, 0, 0.4);
}

/* BUTTONS */

.game-actions {
  margin-top: 20px;
}

.restart-btn {
  border: none;
  padding: 12px 22px;
  border-radius: 10px;
  color: white;
  background: linear-gradient(135deg, #7657ff, #5941d8);
  font-weight: 800;
  cursor: pointer;
  transition: 0.2s ease;
}

.restart-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(118, 87, 255, 0.3);
}

/* MOBILE CONTROLS */

.mobile-controls {
  display: none;
  margin-top: 20px;
}

.control {
  width: 58px;
  height: 52px;
  border: 1px solid #333d5a;
  border-radius: 12px;
  background: #151d31;
  color: white;
  font-size: 20px;
  font-weight: 900;
  cursor: pointer;
  touch-action: manipulation;
}

.control:active {
  background: #7657ff;
  transform: scale(0.94);
}

.up {
  margin-bottom: 7px;
}

.control-row {
  display: flex;
  justify-content: center;
  gap: 7px;
}

/* INSTRUCTIONS */

.instructions {
  max-width: 700px;
  margin: 30px auto 5px;
  padding-top: 25px;
  border-top: 1px solid #222b42;
  text-align: left;
}

.instructions h2 {
  font-size: 20px;
  margin-bottom: 15px;
}

.instructions p {
  color: #8f9ab8;
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 5px;
}

.instructions b {
  color: #dbe1f4;
}

/* RESPONSIVE */

@media (max-width: 800px) {

  .game-top {
    flex-direction: column;
    align-items: flex-start;
  }

  .stats {
    width: 100%;
  }

  .stat {
    flex: 1;
  }

  .mobile-controls {
    display: block;
  }
}

@media (max-width: 520px) {

  .game-header {
    height: 62px;
    padding: 0 18px;
  }

  .logo {
    font-size: 20px;
  }

  .logo-icon {
    width: 34px;
    height: 34px;
  }

  .back-btn {
    font-size: 12px;
    padding: 8px 11px;
  }

  .game-page {
    width: 94%;
    padding-top: 28px;
  }

  .game-card {
    padding: 12px;
    border-radius: 15px;
  }

  .stats {
    gap: 6px;
  }

  .stat {
    min-width: 0;
    padding: 10px 6px;
  }

  .stat strong {
    font-size: 17px;
  }

  .game-top h1 {
    font-size: 40px;
  }

  .game-top p {
    font-size: 13px;
  }

  .instructions {
    padding-left: 5px;
    padding-right: 5px;
  }
}