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

body {
  width: 420px;
  height: 600px;
  overflow: hidden;
  background: #05060f;
  color: #e0e0ff;
  font-family: "Segoe UI", "Arial", sans-serif;
}

#app {
  position: relative;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(ellipse at top, #1a1040 0%, transparent 60%),
    radial-gradient(ellipse at bottom right, #2a0a40 0%, transparent 50%),
    #05060f;
  overflow: hidden;
}

/* Starfield background */
#app::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1px 1px at 20% 30%, #ffffff, transparent),
    radial-gradient(1px 1px at 60% 70%, #ffffff, transparent),
    radial-gradient(2px 2px at 80% 20%, #ffffff, transparent),
    radial-gradient(1px 1px at 40% 80%, #aaaaff, transparent),
    radial-gradient(1px 1px at 90% 50%, #ffffff, transparent),
    radial-gradient(1px 1px at 10% 60%, #ffaaaa, transparent),
    radial-gradient(2px 2px at 70% 40%, #ffffff, transparent),
    radial-gradient(1px 1px at 30% 10%, #aaffff, transparent);
  background-size: 200px 200px;
  opacity: 0.6;
  pointer-events: none;
}

/* SCREENS */
.screen {
  position: absolute;
  inset: 0;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  z-index: 10;
}

.screen.visible {
  display: flex;
}

#game-screen {
  padding: 0;
  justify-content: flex-start;
}

/* TITLE */
.title {
  font-size: 38px;
  font-weight: 800;
  letter-spacing: 2px;
  text-align: center;
  background: linear-gradient(135deg, #00f0ff 0%, #ff00e5 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 0 30px rgba(0, 240, 255, 0.3);
  margin-bottom: 8px;
}

.title.small {
  font-size: 28px;
  margin-bottom: 16px;
}

.title span {
  color: #ff00e5;
  -webkit-text-fill-color: #ff00e5;
}

.subtitle {
  font-size: 14px;
  text-align: center;
  color: #8888aa;
  line-height: 1.5;
  margin-bottom: 24px;
}

/* SCOPE SELECT */
.scope-select {
  width: 100%;
  margin-bottom: 20px;
}

.scope-label {
  display: block;
  text-align: center;
  font-size: 12px;
  color: #8888aa;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 10px;
}

.scope-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.scope-btn {
  flex: 1;
  background: rgba(255, 255, 255, 0.04);
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 14px 8px;
  color: #e0e0ff;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  font-family: inherit;
}

.scope-btn:hover {
  border-color: rgba(0, 240, 255, 0.4);
  background: rgba(0, 240, 255, 0.05);
}

.scope-btn.active {
  border-color: #00f0ff;
  background: rgba(0, 240, 255, 0.12);
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.2);
}

.scope-icon {
  font-size: 26px;
}

.scope-text {
  font-size: 12px;
  line-height: 1.2;
  text-align: center;
}

/* BUTTONS */
.primary-btn {
  background: linear-gradient(135deg, #00f0ff 0%, #00a0ff 100%);
  color: #05060f;
  border: none;
  padding: 14px 48px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 2px;
  border-radius: 30px;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
  box-shadow: 0 0 30px rgba(0, 240, 255, 0.4);
  margin-bottom: 20px;
}

.primary-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 40px rgba(0, 240, 255, 0.6);
}

.primary-btn:active {
  transform: translateY(0);
}

.secondary-btn {
  background: transparent;
  color: #8888aa;
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 10px 32px;
  font-size: 13px;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
  margin-top: 8px;
}

.secondary-btn:hover {
  color: #e0e0ff;
  border-color: rgba(255, 255, 255, 0.4);
}

/* HIGHSCORE */
.highscore-display {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  padding: 8px 20px;
  background: rgba(255, 215, 0, 0.06);
  border: 1px solid rgba(255, 215, 0, 0.2);
  border-radius: 20px;
}

.hs-label {
  font-size: 13px;
}

.hs-value {
  font-size: 16px;
  font-weight: 700;
  color: #ffd700;
}

/* CONTROLS HINT */
.controls-hint {
  text-align: center;
  font-size: 11px;
  color: #666688;
  line-height: 2;
}

.controls-hint kbd {
  display: inline-block;
  min-width: 22px;
  padding: 2px 6px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 4px;
  font-size: 10px;
  font-family: monospace;
  color: #ccccee;
  margin: 0 1px;
}

/* HUD */
#hud {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.7) 0%, transparent 100%);
  z-index: 20;
  pointer-events: none;
}

.hud-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.hud-label {
  font-size: 9px;
  color: #666688;
  letter-spacing: 1px;
}

.hud-value {
  font-size: 14px;
  font-weight: 700;
  color: #00f0ff;
}

.powerup-indicator {
  flex-direction: row;
  gap: 4px;
  font-size: 16px;
}

#game-canvas {
  display: block;
  width: 420px;
  height: 600px;
}

/* GAME OVER */
.result-stats {
  width: 100%;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 16px;
}

.stat-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 4px;
  font-size: 14px;
  color: #aaaacc;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.stat-row:last-child {
  border-bottom: none;
}

.stat-row.highlight {
  color: #ffd700;
}

.stat-value {
  font-weight: 700;
  color: #e0e0ff;
}

.stat-row.highlight .stat-value {
  color: #ffd700;
}

.new-record {
  color: #ffd700;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 2px;
  margin-bottom: 16px;
  animation: pulse 1s ease-in-out infinite alternate;
}

.new-record.hidden {
  display: none;
}

@keyframes pulse {
  from { transform: scale(1); }
  to { transform: scale(1.08); }
}

/* EMPTY STATE */
.empty-icon {
  font-size: 56px;
  margin-bottom: 8px;
}