:root {
  --bg: #07071a;
  --surf: #0f0f2e;
  --surf2: #181838;
  --cyan: #3ff0d0;
  --pink: #ff6eaa;
  --yellow: #ffd060;
  --green: #40e87a;
  --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: 32px 24px;
  width: min(480px, 96vw);
  max-height: 98vh;
  overflow-y: auto;
  background: var(--surf);
  border-radius: var(--r);
  border: 1px solid #2a2a5a;
  box-shadow: 0 0 60px #3ff0d020;
}

.game-title {
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  font-size: clamp(2rem, 8vw, 3.4rem);
  letter-spacing: 4px;
  color: var(--text);
  text-shadow: 0 0 24px var(--cyan)88;
}
.title-accent {
  color: var(--cyan);
}
.subtitle {
  color: var(--muted);
  font-size: 0.85rem;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.seed-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  width: 100%;
}
.seed-label {
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 3px;
  color: var(--cyan);
}
#seedInput {
  width: 100%;
  background: var(--surf2);
  border: 2px solid var(--cyan)66;
  border-radius: var(--r);
  color: var(--cyan);
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: 3px;
  text-align: center;
  padding: 10px 16px;
  outline: none;
  transition: border-color 0.2s;
}
#seedInput:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 16px var(--cyan)44;
}
#seedInput::placeholder {
  color: var(--muted);
  font-size: 0.9rem;
  letter-spacing: 2px;
}

/* ── BUTTONS ── */
.btn {
  display: inline-block;
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 3px;
  padding: 12px 28px;
  border-radius: var(--r);
  border: none;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
  transition: transform 0.1s, box-shadow 0.2s;
}
.btn:active { transform: scale(0.96); }

.btn-primary {
  background: var(--cyan);
  color: #07071a;
  box-shadow: 0 0 20px var(--cyan)66;
  width: 100%;
}
.btn-primary:hover {
  box-shadow: 0 0 32px var(--cyan)aa;
}

.btn-secondary {
  background: transparent;
  border: 2px solid var(--cyan)88;
  color: var(--cyan);
}
.btn-secondary:hover {
  border-color: var(--cyan);
  box-shadow: 0 0 14px var(--cyan)44;
}

.btn-muted {
  background: transparent;
  border: 2px solid var(--muted)66;
  color: var(--muted);
  text-decoration: none;
}
.btn-muted:hover {
  border-color: var(--muted);
  color: var(--text);
}

/* ── CONTROLS INFO ── */
.controls-info {
  width: 100%;
  background: var(--surf2);
  border-radius: var(--r);
  padding: 14px 18px;
  border: 1px solid #2a2a5a;
}
.controls-title {
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 3px;
  color: var(--muted);
  margin-bottom: 10px;
}
.controls-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 14px;
  font-size: 0.8rem;
  color: var(--text);
}
.key {
  background: var(--surf);
  border: 1px solid #3a3a6a;
  border-radius: 5px;
  padding: 2px 7px;
  color: var(--yellow);
  font-family: 'Orbitron', sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  white-space: nowrap;
  text-align: center;
}

/* ── RECENT SEEDS ── */
.recent-section {
  width: 100%;
}
.recent-title {
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 3px;
  color: var(--muted);
  margin-bottom: 8px;
}
.recent-list {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}
.recent-chip {
  background: var(--surf2);
  border: 1px solid #2a2a5a;
  border-radius: 20px;
  padding: 4px 12px;
  font-size: 0.8rem;
  color: var(--cyan);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.recent-chip:hover {
  border-color: var(--cyan)88;
  background: var(--surf);
}

.back-link {
  color: var(--muted);
  font-size: 0.8rem;
  text-decoration: none;
  letter-spacing: 1px;
}
.back-link:hover { color: var(--text); }

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

#canvas {
  display: block;
  max-width: 100vw;
  max-height: calc(100vh - 60px);
  aspect-ratio: 900/500;
  object-fit: contain;
  border-radius: 0 0 var(--r) var(--r);
}

/* ── HUD ── */
.hud {
  width: min(900px, 100vw);
  height: 52px;
  background: var(--surf);
  border-bottom: 1px solid #2a2a5a;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 18px;
  flex-shrink: 0;
}
.hud-left {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.hud-hole {
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  font-size: 1rem;
  color: var(--cyan);
  letter-spacing: 2px;
}
.hud-seed {
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 1px;
}
.hud-right {
  display: flex;
  gap: 22px;
  align-items: center;
}
.hud-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
}
.hud-label {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.55rem;
  letter-spacing: 2px;
  color: var(--muted);
}
.hud-val {
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--yellow);
}

/* ── FINISH SCREEN ── */
.finish-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  padding: 32px 24px;
  width: min(520px, 96vw);
  max-height: 98vh;
  overflow-y: auto;
  background: var(--surf);
  border-radius: var(--r);
  border: 1px solid #2a2a5a;
  box-shadow: 0 0 60px var(--green)22;
}

.finish-title {
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  font-size: clamp(1.4rem, 5vw, 2.2rem);
  letter-spacing: 4px;
  color: var(--green);
  text-shadow: 0 0 24px var(--green)66;
}

.finish-score-block {
  text-align: center;
}
.finish-score-label {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.7rem;
  letter-spacing: 3px;
  color: var(--muted);
}
.finish-score-val {
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  font-size: 4rem;
  color: var(--yellow);
  line-height: 1;
  text-shadow: 0 0 30px var(--yellow)66;
}
.finish-pb {
  font-size: 0.85rem;
  color: var(--cyan);
  margin-top: 4px;
  min-height: 1.2em;
}

.breakdown-title,
.lb-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.7rem;
  letter-spacing: 3px;
  color: var(--muted);
  margin-bottom: 8px;
}

.breakdown-list {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  width: 100%;
}
.breakdown-item {
  background: var(--surf2);
  border-radius: 8px;
  padding: 8px 4px;
  text-align: center;
  border: 1px solid #2a2a5a;
}
.bd-hole {
  font-size: 0.65rem;
  color: var(--muted);
  font-family: 'Orbitron', sans-serif;
  letter-spacing: 1px;
}
.bd-strokes {
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--text);
}
.bd-par {
  font-size: 0.65rem;
  color: var(--muted);
}
.bd-eagle { color: var(--cyan); }
.bd-birdie { color: var(--green); }
.bd-bogey { color: var(--yellow); }
.bd-double { color: var(--pink); }

.leaderboard-block {
  width: 100%;
}
.lb-seed {
  color: var(--cyan);
  font-size: 0.7rem;
}
.lb-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 0;
}
.lb-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--surf2);
  border-radius: 7px;
  padding: 8px 14px;
  border: 1px solid #2a2a5a;
}
.lb-rank {
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: 0.8rem;
  color: var(--muted);
  width: 22px;
  text-align: right;
}
.lb-rank-1 { color: var(--yellow); }
.lb-rank-2 { color: #c0c0c0; }
.lb-rank-3 { color: #cd7f32; }
.lb-score {
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  color: var(--text);
  margin-left: auto;
}
.lb-you {
  border-color: var(--cyan)88;
  background: #0f2030;
}

.finish-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  width: 100%;
}
.finish-actions .btn {
  flex: 1 1 120px;
  font-size: 0.75rem;
  padding: 11px 16px;
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--surf2); }
::-webkit-scrollbar-thumb { background: #3a3a6a; border-radius: 3px; }