:root {
  --bg: #0f172a;
  --panel: #1e293b;
  --text: #f1f5f9;
  --accent: #38bdf8;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Outfit", sans-serif;
  background: linear-gradient(160deg, #020617, var(--bg));
  min-height: 100vh;
  color: var(--text);
  -webkit-tap-highlight-color: transparent;
}

.wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12px;
}

.hidden { display: none !important; }

.level-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 80vh;
  text-align: center;
}

.level-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.level-header h1, .header h1 {
  margin: 0;
  font-size: clamp(1.35rem, 4vw, 2rem);
}

.level-screen > p { margin: 0 0 24px; opacity: 0.9; }

.level-buttons {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
  max-width: 320px;
}

.level-btn {
  padding: 16px 20px;
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 12px;
  background: rgba(255,255,255,0.08);
  color: inherit;
  font-family: inherit;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.level-btn:hover { background: rgba(255,255,255,0.15); }
.level-name { font-weight: 700; font-size: 1.1rem; }
.level-desc { font-size: 0.85rem; opacity: 0.85; }

.help-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.4);
  background: rgba(255,255,255,0.1);
  color: inherit;
  font-weight: 700;
  cursor: pointer;
}

.game-screen {
  width: 100%;
  max-width: 440px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  width: 100%;
  margin-bottom: 10px;
}

.level-badge {
  padding: 4px 10px;
  border-radius: 20px;
  background: rgba(255,255,255,0.2);
  font-size: 0.8rem;
  font-weight: 600;
}

.header-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-left: auto;
  align-items: center;
}

.score { font-weight: 700; color: var(--accent); }

.btn {
  padding: 10px 14px;
  min-height: 44px;
  border: none;
  border-radius: 8px;
  background: rgba(255,255,255,0.25);
  color: inherit;
  font-family: inherit;
  font-weight: 600;
  cursor: pointer;
}

.btn-ghost {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.4);
}

.btn-large { padding: 12px 22px; width: 100%; }

.canvas-wrap {
  position: relative;
  width: 100%;
  max-width: 400px;
}

#gameCanvas {
  width: 100%;
  height: auto;
  display: block;
  background: var(--panel);
  border-radius: 12px;
  touch-action: none;
}

.fire-btn {
  width: 100%;
  margin-top: 10px;
  background: var(--accent);
  color: #0f172a;
}

.result-overlay, .help-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 20px;
}

.help-overlay { z-index: 300; }

.result-box, .help-modal {
  background: var(--panel);
  border: 2px solid rgba(255,255,255,0.2);
  border-radius: 16px;
  padding: 28px;
  max-width: 400px;
  width: 100%;
  text-align: center;
}

.help-modal { text-align: left; }
.help-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}
.help-header h2 { margin: 0; }
.help-close {
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  color: inherit;
  font-size: 1.5rem;
  cursor: pointer;
}
.help-body ul { padding-left: 20px; }
.result-box h2 { color: var(--accent); margin: 0 0 8px; }

.result-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 16px;
}

.result-actions .btn {
  width: 100%;
  margin: 0;
}

@media (max-width: 480px) {
  .header-actions { width: 100%; margin-left: 0; justify-content: flex-end; }
}