* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  user-select: none;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: #0f111d;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: #fff;
  touch-action: none;
}

#app-layout {
  display: flex;
  width: 100vw;
  height: 100vh;
  position: relative;
  overflow: hidden;
}

/* --- Боковая панель (Sidebar) --- */
#sidebar {
  width: 320px;
  background: #17192a;
  border-right: 2px solid rgba(255, 183, 3, 0.2);
  display: flex;
  flex-direction: column;
  padding: 24px 20px;
  gap: 20px;
  box-shadow: 4px 0 25px rgba(0, 0, 0, 0.4);
  z-index: 20;
  overflow-y: auto;
}

.brand {
  text-align: center;
  padding-bottom: 12px;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.12);
}

.brand-icon {
  font-size: 40px;
  display: inline-block;
  animation: catWiggle 2s infinite ease-in-out;
}

@keyframes catWiggle {
  0%, 100% { transform: rotate(0deg); }
  25% { transform: rotate(-8deg); }
  75% { transform: rotate(8deg); }
}

.brand h1 {
  font-size: 26px;
  font-weight: 900;
  letter-spacing: 2px;
  color: #ffb703;
  text-shadow: 0 0 15px rgba(255, 183, 3, 0.5);
  margin-top: 4px;
}

.brand-tag {
  font-size: 12px;
  color: #9aa5be;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Stats Card */
.stats-card {
  background: #1e2238;
  border-radius: 16px;
  padding: 16px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.stat-item {
  background: #151829;
  border-radius: 12px;
  padding: 12px 10px;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.stat-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  color: #8c97b5;
  letter-spacing: 1px;
  margin-bottom: 4px;
}

.stat-number {
  font-size: 26px;
  font-weight: 900;
  color: #fff;
}

.current-score .stat-number {
  color: #00f5d4;
  text-shadow: 0 0 12px rgba(0, 245, 212, 0.6);
}

.high-score .stat-number {
  color: #ffd166;
  text-shadow: 0 0 12px rgba(255, 209, 102, 0.6);
}

.wow-stat .stat-number {
  color: #ff007f;
  text-shadow: 0 0 12px rgba(255, 0, 128, 0.6);
}

.combo-stat .stat-number {
  color: #70d6ff;
}

/* Rules Card */
.rules-card {
  background: rgba(25, 29, 48, 0.6);
  border-radius: 14px;
  padding: 16px;
  font-size: 13px;
  line-height: 1.6;
  color: #b2bed8;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.rules-card h3 {
  font-size: 14px;
  color: #ffb703;
  margin-bottom: 10px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.rules-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.rules-card strong {
  color: #fff;
}

/* Buttons */
.controls-card {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sidebar-btn {
  width: 100%;
  padding: 12px;
  border-radius: 10px;
  background: #252a42;
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s ease;
}

.sidebar-btn:hover {
  background: #333a5c;
  border-color: #ffb703;
}

.restart-action {
  background: linear-gradient(135deg, #ff007f, #b30059);
  border: none;
  box-shadow: 0 0 15px rgba(255, 0, 128, 0.4);
}

.restart-action:hover {
  box-shadow: 0 0 25px rgba(255, 0, 128, 0.8);
  transform: translateY(-1px);
}

/* --- Игровая зона --- */
#game-zone {
  flex: 1;
  height: 100%;
  position: relative;
  background: #0f111d;
  overflow: hidden;
}

#pongCanvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* Мобильный компактный HUD */
#mobile-hud {
  display: none;
  position: absolute;
  top: env(safe-area-inset-top, 10px);
  left: 12px;
  right: 12px;
  height: 48px;
  background: rgba(23, 25, 42, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  padding: 0 14px;
  align-items: center;
  justify-content: space-between;
  backdrop-filter: blur(8px);
  z-index: 15;
  pointer-events: none;
}

.m-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.m-label {
  font-size: 9px;
  font-weight: 800;
  color: #8c97b5;
  letter-spacing: 1px;
}

.m-val {
  font-size: 18px;
  font-weight: 900;
  color: #00f5d4;
}

.m-stat.highlight .m-val {
  color: #ffd166;
}

.m-btn {
  pointer-events: auto;
  background: #1e2238;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  border-radius: 8px;
  width: 32px;
  height: 32px;
  font-size: 16px;
  cursor: pointer;
}

/* --- Модальные оверлеи (Старт и Game Over) --- */
.game-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(10, 12, 22, 0.85);
  backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 30;
  padding: 20px;
}

.hidden {
  display: none !important;
}

.modal-box {
  background: #1b1e33;
  border: 2px solid #ffb703;
  box-shadow: 0 0 35px rgba(255, 183, 3, 0.35);
  border-radius: 24px;
  padding: 32px 28px;
  max-width: 420px;
  width: 100%;
  text-align: center;
  animation: popIn 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes popIn {
  from { transform: scale(0.85); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.cat-mascot {
  font-size: 64px;
  margin-bottom: 12px;
}

.modal-box h2 {
  font-size: 32px;
  font-weight: 900;
  letter-spacing: 2px;
  color: #ffb703;
  margin-bottom: 8px;
}

.danger-title {
  color: #ff0055 !important;
  text-shadow: 0 0 15px rgba(255, 0, 85, 0.6);
}

.modal-desc, .gameover-reason {
  color: #a4b3d1;
  font-size: 15px;
  margin-bottom: 24px;
}

.main-action-btn {
  width: 100%;
  padding: 16px;
  font-size: 20px;
  font-weight: 900;
  letter-spacing: 2px;
  border: none;
  border-radius: 14px;
  background: linear-gradient(135deg, #00f5d4, #00bbf9);
  color: #0b132b;
  cursor: pointer;
  box-shadow: 0 0 25px rgba(0, 245, 212, 0.5);
  transition: all 0.15s ease;
}

.main-action-btn:hover {
  transform: scale(1.03);
  box-shadow: 0 0 35px rgba(0, 245, 212, 0.8);
}

.pulse-glow {
  background: linear-gradient(135deg, #ff007f, #ffb703);
  color: #fff;
  box-shadow: 0 0 25px rgba(255, 0, 128, 0.6);
}

.hint-text {
  font-size: 12px;
  color: #7b87a5;
  margin-top: 14px;
}

.gameover-stats {
  background: #131525;
  border-radius: 14px;
  padding: 14px 18px;
  margin-bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: left;
}

.g-stat {
  display: flex;
  justify-content: space-between;
  font-size: 15px;
  color: #a4b3d1;
}

.g-stat strong {
  color: #fff;
  font-size: 18px;
}

.record-highlight strong {
  color: #ffd166;
  font-size: 20px;
}

/* --- Адаптивность для мобильных телефонов (iPhone 15 Pro Max и др.) --- */
@media (max-width: 768px) {
  #app-layout {
    flex-direction: column;
  }

  #sidebar {
    display: none; /* Скрываем боковую панель на мобильных, используем мобильный HUD */
  }

  #mobile-hud {
    display: flex;
  }

  #game-zone {
    width: 100vw;
    height: 100vh;
  }
}