:root {
  --bg: #07071a;
  --surf: #0f0f2e;
  --surf2: #181838;
  --cyan: #3ff0d0;
  --pink: #ff6eaa;
  --yellow: #ffd060;
  --green: #40e87a;
  --purple: #c084fc;
  --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 ── */
.menu-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  padding: 40px 32px;
  background: var(--surf);
  border: 1px solid #2a2a5a;
  border-radius: 18px;
  min-width: 360px;
  max-width: 480px;
  width: 90vw;
  box-shadow: 0 0 60px #0007;
}

.logo-wrap {
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  font-size: 2.8rem;
  letter-spacing: 4px;
  line-height: 1;
}
.logo-stick { color: var(--text); }
.logo-fly   { color: var(--cyan); text-shadow: 0 0 20px var(--cyan); }

.tagline {
  color: var(--muted);
  font-size: 0.82rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-top: -10px;
}

/* Seed input row */
.seed-row {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
}
.seed-label {
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: 0.78rem;
  color: var(--cyan);
  letter-spacing: 2px;
  white-space: nowrap;
}
#seedInput {
  flex: 1;
  background: var(--surf2);
  border: 1.5px solid #2e2e60;
  border-radius: var(--r);
  padding: 10px 14px;
  color: var(--cyan);
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 2px;
  outline: none;
  transition: border-color 0.2s;
  caret-color: var(--cyan);
}
#seedInput:focus { border-color: var(--cyan); box-shadow: 0 0 10px #3ff0d040; }
#seedInput::placeholder { color: var(--muted); font-weight: 700; }

/* Buttons */
.btn {
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 2px;
  padding: 12px 32px;
  border: none;
  border-radius: var(--r);
  cursor: pointer;
  transition: transform 0.1s, box-shadow 0.2s, filter 0.2s;
  width: 100%;
}
.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--cyan);
  color: #07071a;
  box-shadow: 0 0 24px #3ff0d055;
}
.btn-primary:hover { filter: brightness(1.15); box-shadow: 0 0 36px #3ff0d088; }

.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1.5px solid #3a3a70;
}
.btn-secondary:hover { border-color: var(--cyan); color: var(--cyan); }

.btn-share {
  background: var(--pink);
  color: #07071a;
  box-shadow: 0 0 18px #ff6eaa44;
}
.btn-share:hover { filter: brightness(1.1); }

/* Controls box */
.controls-box {
  width: 100%;
  background: var(--surf2);
  border-radius: var(--r);
  padding: 14px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.ctrl-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.68rem;
  letter-spacing: 3px;
  color: var(--muted);
  margin-bottom: 4px;
}
.ctrl-row { display: flex; align-items: center; gap: 10px; }
.key {
  background: #2a2a50;
  border: 1px solid #44447a;
  border-radius: 5px;
  padding: 2px 8px;
  font-size: 0.72rem;
  color: var(--yellow);
  letter-spacing: 1px;
  min-width: 60px;
  text-align: center;
}
.ctrl-desc { font-size: 0.78rem; color: var(--text); }

/* Recent seeds */
.recent-seeds {
  width: 100%;
}
.recent-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.65rem;
  letter-spacing: 3px;
  color: var(--muted);
  margin-bottom: 8px;
}
.recent-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.recent-chip {
  background: var(--surf2);
  border: 1px solid #2e2e60;
  border-radius: 20px;
  padding: 4px 14px;
  font-size: 0.78rem;
  color: var(--cyan);
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
  letter-spacing: 1px;
}
.recent-chip:hover { border-color: var(--cyan); color: #fff; }

.back-link {
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 1px;
  text-decoration: none;
  transition: color 0.2s;
}
.back-link:hover { color: var(--text); }

/* ── HUD ── */
#hud {
  position: absolute;
  top: 0; left: 0; right: 0;
  pointer-events: none;
  z-index: 10;
  padding: 10px 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
}
#hudScore {
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  font-size: 2.6rem;
  color: #fff;
  text-shadow: 0 0 20px #fff8, 0 2px 8px #0009;
  line-height: 1;
}
#hudPb {
  font-family: 'Share Tech Mono', monospace;
  font-size: 0.82rem;
  color: var(--yellow);
  letter-spacing: 1px;
  min-height: 18px;
}
#hudSeed {
  position: absolute;
  top: 12px;
  right: 18px;
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 1px;
}

/* Canvas wrapper */
#gameScreen {
  position: fixed;
  inset: 0;
  background: var(--bg);
  align-items: center;
  justify-content: center;
}
#canvas {
  display: block;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border: 1px solid #1a1a3a;
  box-shadow: 0 0 80px #00000088;
}

/* ── DEATH SCREEN ── */
.death-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  padding: 40px 32px;
  background: var(--surf);
  border: 1px solid #2a2a5a;
  border-radius: 18px;
  min-width: 360px;
  max-width: 480px;
  width: 90vw;
  box-shadow: 0 0 80px #0009;
}

.death-title {
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  font-size: 2.2rem;
  color: var(--pink);
  letter-spacing: 4px;
  text-shadow: 0 0 24px var(--pink);
}

.death-stats {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.stat-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 8px 14px;
  background: var(--surf2);
  border-radius: 8px;
}
.stat-label {
  font-size: 0.7rem;
  letter-spacing: 2px;
  color: var(--muted);
}
.stat-val {
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: 1.4rem;
}
.stat-val.cyan   { color: var(--cyan); text-shadow: 0 0 12px var(--cyan); }
.stat-val.yellow { color: var(--yellow); text-shadow: 0 0 12px var(--yellow); }
.stat-val.muted  { color: var(--muted); font-size: 1rem; }

/* Leaderboard */
.lb-section { width: 100%; }
.lb-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.7rem;
  letter-spacing: 3px;
  color: var(--muted);
  margin-bottom: 10px;
}
.muted-small { font-size: 0.6rem; color: var(--muted); letter-spacing: 1px; }

.lb-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 180px;
  overflow-y: auto;
}
.lb-list::-webkit-scrollbar { width: 4px; }
.lb-list::-webkit-scrollbar-track { background: var(--surf2); }
.lb-list::-webkit-scrollbar-thumb { background: #3a3a70; border-radius: 2px; }

.lb-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 14px;
  background: var(--surf2);
  border-radius: 8px;
  font-size: 0.85rem;
}
.lb-rank {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.7rem;
  color: var(--muted);
  min-width: 22px;
}
.lb-item.top1 .lb-rank { color: var(--yellow); }
.lb-item.top2 .lb-rank { color: #b0b0c8; }
.lb-item.top3 .lb-rank { color: #cd7f32; }
.lb-score {
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  color: var(--text);
  flex: 1;
}
.lb-item.highlight .lb-score { color: var(--cyan); }
.lb-date { font-size: 0.68rem; color: var(--muted); }

.death-btns {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
}