:root {
  --bg: #07071a; --surf: #0f0f2e; --surf2: #181838;
  --cyan: #3ff0d0; --pink: #ff6eaa; --yellow: #ffd060;
  --green: #40e87a; --red: #ff4444; --text: #d8d8ff; --muted: #5a6090; --r: 10px;
}

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

html, body {
  width: 100%; height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: 'Share Tech Mono', monospace;
  overflow: hidden;
}

/* ─── SCREENS ─── */
.screen {
  display: none;
  position: fixed; inset: 0;
  align-items: center; justify-content: center;
}
.screen.active { display: flex; }

/* ─── MENU ─── */
#menuScreen {
  background: radial-gradient(ellipse at 50% 30%, #1a0a3a 0%, var(--bg) 70%);
}

.menu-inner {
  display: flex; flex-direction: column; align-items: center; gap: 22px;
  padding: 40px 32px;
  background: var(--surf);
  border: 1px solid #2a2a5a;
  border-radius: var(--r);
  box-shadow: 0 0 60px #0008, 0 0 20px #3ff0d022;
  max-width: 540px; width: 94%;
}

.logo {
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  font-size: 2.8rem;
  color: var(--text);
  letter-spacing: 0.06em;
  text-shadow: 0 0 20px #3ff0d088;
}
.logo span { color: var(--cyan); }

.tagline {
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
  line-height: 1.5;
}

.seed-row {
  display: flex; align-items: center; gap: 10px; width: 100%;
}
.seed-row label {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.75rem;
  color: var(--cyan);
  letter-spacing: 0.12em;
  white-space: nowrap;
}
.seed-row input {
  flex: 1;
  background: var(--surf2);
  border: 1px solid #3a3a6a;
  border-radius: 6px;
  color: var(--text);
  font-family: 'Share Tech Mono', monospace;
  font-size: 0.9rem;
  padding: 8px 12px;
  outline: none;
  transition: border-color 0.2s;
}
.seed-row input:focus { border-color: var(--cyan); box-shadow: 0 0 8px #3ff0d044; }
.seed-row input::placeholder { color: var(--muted); }

/* ─── BUTTONS ─── */
.btn {
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  border: none;
  border-radius: 6px;
  padding: 10px 20px;
  cursor: pointer;
  transition: transform 0.1s, box-shadow 0.2s, filter 0.2s;
}
.btn:active { transform: scale(0.96); }

.btn-primary {
  background: var(--cyan);
  color: #07071a;
  box-shadow: 0 0 16px #3ff0d066;
}
.btn-primary:hover { filter: brightness(1.15); box-shadow: 0 0 24px #3ff0d099; }

.btn-secondary {
  background: transparent;
  color: var(--cyan);
  border: 1px solid var(--cyan);
}
.btn-secondary:hover { background: #3ff0d018; box-shadow: 0 0 12px #3ff0d033; }

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid #3a3a6a;
}
.btn-ghost:hover { color: var(--text); border-color: #7070aa; }

/* ─── CONTROLS INFO ─── */
.controls-info {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 10px 20px;
  font-size: 0.8rem; color: var(--muted);
}
.ctrl-item { display: flex; align-items: center; gap: 6px; }
kbd {
  background: var(--surf2);
  border: 1px solid #3a3a6a;
  border-radius: 4px;
  padding: 2px 6px;
  font-family: 'Share Tech Mono', monospace;
  font-size: 0.75rem;
  color: var(--text);
}

/* ─── LEGEND ─── */
.object-legend {
  display: flex; gap: 20px; flex-wrap: wrap; justify-content: center;
  font-size: 0.8rem; color: var(--muted);
}
.legend-item { display: flex; align-items: center; gap: 7px; }
.dot {
  display: inline-block; width: 14px; height: 14px; border-radius: 50%;
}
.rock-dot { background: #aaaacc; }
.bomb-dot { background: #222; border: 2px solid #ff6644; width: 20px; height: 20px; }
.star-dot { background: var(--yellow); clip-path: polygon(50% 0%,61% 35%,98% 35%,68% 57%,79% 91%,50% 70%,21% 91%,32% 57%,2% 35%,39% 35%); border-radius: 0; }

/* ─── RECENT SEEDS ─── */
.recent-seeds {
  width: 100%; display: flex; flex-wrap: wrap; gap: 8px; justify-content: center;
  min-height: 10px;
}
.recent-seed-btn {
  background: var(--surf2);
  border: 1px solid #3a3a6a;
  border-radius: 20px;
  color: var(--muted);
  font-family: 'Share Tech Mono', monospace;
  font-size: 0.75rem;
  padding: 4px 12px;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
}
.recent-seed-btn:hover { color: var(--cyan); border-color: var(--cyan); }

.back-link {
  color: var(--muted);
  font-size: 0.78rem;
  text-decoration: none;
  transition: color 0.2s;
}
.back-link:hover { color: var(--text); }

/* ─── GAME ─── */
#gameScreen {
  background: #07071a;
  flex-direction: column;
}

#canvas {
  display: block;
  max-width: 100%;
  max-height: calc(100vh - 48px);
  image-rendering: pixelated;
}

#hud {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 48px;
  display: flex; align-items: center;
  padding: 0 16px;
  background: linear-gradient(to bottom, #07071aee 80%, transparent);
  pointer-events: none;
  z-index: 10;
}

.hud-item {
  font-family: 'Share Tech Mono', monospace;
  font-size: 0.82rem;
  color: var(--text);
  letter-spacing: 0.04em;
}
.hud-left { flex: 1; }
.hud-center {
  flex: 1; text-align: center;
  font-family: 'Orbitron', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--cyan);
  text-shadow: 0 0 10px #3ff0d077;
}
.hud-right { flex: 1; text-align: right; color: var(--muted); font-size: 0.75rem; }

.hud-shield {
  position: fixed;
  top: 48px; left: 50%; transform: translateX(-50%);
  background: #0f2e2e;
  border: 1px solid var(--cyan);
  border-radius: 4px;
  padding: 2px 12px;
  font-size: 0.75rem;
  color: var(--cyan);
  text-shadow: 0 0 8px var(--cyan);
  box-shadow: 0 0 10px #3ff0d044;
}
.hidden { display: none !important; }

/* ─── DEATH SCREEN ─── */
#deathScreen {
  background: radial-gradient(ellipse at 50% 40%, #2a030a 0%, #07071a 70%);
}
#deathScreen::before {
  content: '';
  position: fixed; inset: 0;
  background: radial-gradient(ellipse at 50% 0%, #ff000018 0%, transparent 60%);
  pointer-events: none;
}

.death-inner {
  display: flex; flex-direction: column; align-items: center; gap: 20px;
  padding: 36px 32px;
  background: var(--surf);
  border: 1px solid #4a1a1a;
  border-radius: var(--r);
  box-shadow: 0 0 60px #ff000022, 0 0 20px #0006;
  max-width: 560px; width: 94%;
  position: relative; z-index: 1;
}

.death-title {
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  font-size: 2.4rem;
  color: var(--red);
  letter-spacing: 0.12em;
  text-shadow: 0 0 30px #ff4444aa;
  animation: flicker 2s infinite;
}

@keyframes flicker {
  0%,100% { opacity: 1; }
  92% { opacity: 1; }
  93% { opacity: 0.7; }
  94% { opacity: 1; }
  96% { opacity: 0.85; }
  97% { opacity: 1; }
}

.stat-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px; width: 100%;
}
.stat-box {
  background: var(--surf2);
  border: 1px solid #2a2a5a;
  border-radius: 8px;
  padding: 12px 16px;
  text-align: center;
}
.stat-label {
  font-size: 0.65rem;
  color: var(--muted);
  letter-spacing: 0.12em;
  margin-bottom: 6px;
  font-family: 'Orbitron', sans-serif;
}
.stat-value {
  font-size: 1rem;
  font-weight: 700;
  font-family: 'Share Tech Mono', monospace;
}
.stat-value.cyan { color: var(--cyan); text-shadow: 0 0 8px #3ff0d066; }
.stat-value.yellow { color: var(--yellow); text-shadow: 0 0 8px #ffd06066; }
.stat-value.pink { color: var(--pink); }
.stat-value.mono { color: var(--text); font-size: 0.85rem; }

/* ─── LEADERBOARD ─── */
.leaderboard {
  width: 100%;
  background: var(--surf2);
  border: 1px solid #2a2a5a;
  border-radius: 8px;
  overflow: hidden;
}
.lb-header {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.65rem;
  color: var(--muted);
  letter-spacing: 0.12em;
  padding: 8px 16px 4px;
}
.lb-row {
  display: flex; align-items: center; gap: 10px;
  padding: 5px 16px;
  font-size: 0.82rem;
  border-top: 1px solid #1a1a3a;
  transition: background 0.15s;
}
.lb-row:hover { background: #1a1a38; }
.lb-rank { color: var(--muted); width: 20px; text-align: right; font-size: 0.75rem; }
.lb-row.gold .lb-rank { color: var(--yellow); }
.lb-row.silver .lb-rank { color: #c0c0c0; }
.lb-row.bronze .lb-rank { color: #cd7f32; }
.lb-time { flex: 1; color: var(--cyan); font-family: 'Share Tech Mono', monospace; }
.lb-row.current-run .lb-time { color: var(--green); }
.lb-badge { font-size: 0.65rem; color: var(--muted); }
.lb-row.current-run .lb-badge { color: var(--green); }

/* ─── DEATH BUTTONS ─── */
.death-buttons {
  display: flex; flex-wrap: wrap; gap: 10px; justify-content: center;
}

.share-msg {
  font-size: 0.8rem;
  color: var(--green);
  text-align: center;
  padding: 6px 16px;
  background: #0a2a15;
  border: 1px solid var(--green);
  border-radius: 6px;
  max-width: 100%;
  word-break: break-all;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 600px) {
  .logo { font-size: 2rem; }
  .stat-grid { grid-template-columns: 1fr; }
  .death-buttons { flex-direction: column; align-items: stretch; }
  .death-buttons .btn { text-align: center; }
  #canvas { max-height: calc(100vh - 56px); }
}