:root {
  --bg: #0b0908;
  --paper: #14100f;
  --white: #f2f0eb;
  --red: #c81f2a;
  --red-dark: #7a1218;
  --muted: #a39d94;
  --line: #221a18;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
  background: var(--bg);
  overflow: hidden;
  overscroll-behavior: none;
}

body {
  color: var(--white);
  font-family: 'Special Elite', 'Courier New', monospace;
  display: flex;
  flex-direction: column;
  -webkit-tap-highlight-color: transparent;
  touch-action: none;
}

.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 50;
  opacity: 0.1;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='120' height='120'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}
.vignette {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 49;
  background: radial-gradient(ellipse at center, rgba(0,0,0,0) 45%, rgba(0,0,0,0.65) 100%);
}

/* Damage feedback. Deliberately a single slow fade rather than a repeating
   alternation -- full-screen flashing above ~3Hz is a real photosensitive
   seizure risk (WCAG 2.3.1), and this fires often once the difficulty
   ramps up in the adult stages. */
.damage-flash {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 48;
  opacity: 0;
  background: radial-gradient(ellipse at center, rgba(200,31,42,0) 35%, rgba(200,31,42,0.55) 100%);
  transition: opacity 0.45s ease-out;
}
.damage-flash.firing { opacity: 1; transition: opacity 0.06s linear; }

/* ---- Top bar ---- */
.top-bar {
  flex: 0 0 auto;
  position: relative;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 1rem 0.5rem;
}
.top-bar a.brand {
  font-family: 'Butcherman', cursive;
  color: var(--white);
  text-decoration: none;
  font-size: 1rem;
}
.top-bar a.brand span { color: var(--red); }

.icon-btn {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--muted);
  font-family: 'Special Elite', monospace;
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.3rem 0.6rem;
  cursor: pointer;
}
.icon-btn:hover { border-color: var(--muted); color: var(--white); }

/* ---- HUD ---- */
.hud {
  flex: 0 0 auto;
  z-index: 30;
  display: flex;
  justify-content: center;
  gap: 1.6rem;
  padding: 0 1rem 0.4rem;
}
.hud.hidden { display: none; }
.hud-cell { display: flex; align-items: baseline; gap: 0.4rem; }
.hud-key {
  font-size: 0.58rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.hud-val {
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  color: var(--white);
}

.hud-val.void { color: var(--red); letter-spacing: 0.14em; }

/* Secret / cheat announcements. Sits above the overlays (z-index 40) so a
   secret fired mid-stage is still readable once the stage-clear card comes
   up over the top of it, but below the grain and vignette. */
.cheat-toast {
  position: fixed;
  top: 4.2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 45;
  pointer-events: none;
  max-width: min(28rem, calc(100vw - 2rem));
  width: max-content;
  text-align: center;
  background: rgba(11,9,8,0.94);
  border: 2px solid var(--red);
  border-left-width: 6px;
  padding: 0.7rem 1.4rem;
  box-shadow: 0 8px 26px rgba(0,0,0,0.8);
}
.cheat-toast.hidden { display: none; }
.cheat-toast-title {
  margin: 0;
  font-size: 0.86rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--red);
}
.cheat-toast-sub {
  margin: 0.35rem 0 0;
  font-size: 0.7rem;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.secret-note {
  border-left: 3px solid var(--red-dark);
  padding-left: 0.9rem;
  font-style: italic;
}

/* ---- Play area ---- */
.stage-wrap {
  flex: 1 1 auto;
  position: relative;
  min-height: 0;
}
#gameCanvas {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
}

/* ---- Enemy legend ---- */
.legend {
  flex: 0 0 auto;
  z-index: 30;
  border-top: 1px solid var(--line);
  background: rgba(11,9,8,0.92);
  padding: 0.5rem 0.75rem 0.6rem;
}
.legend.hidden { display: none; }
.legend-title {
  margin: 0 0 0.35rem;
  font-size: 0.55rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--red);
  text-align: center;
}
.legend-items {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.4rem 1rem;
}
.legend-item {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}
.legend-item canvas {
  width: 26px;
  height: 26px;
  flex: 0 0 auto;
  image-rendering: pixelated;
}
.legend-name {
  font-size: 0.6rem;
  letter-spacing: 0.05em;
  color: var(--white);
  white-space: nowrap;
}
.legend-hp {
  font-size: 0.55rem;
  color: var(--muted);
}

/* ---- Overlays ---- */
.overlay {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.82);
  backdrop-filter: blur(2px);
  padding: 1.25rem;
  overflow-y: auto;
}
.overlay.hidden { display: none; }
.hidden { display: none !important; }

.panel {
  text-align: center;
  max-width: 30rem;
  width: 100%;
}

.panel h1 {
  font-family: 'Butcherman', cursive;
  font-weight: 400;
  font-size: clamp(2.3rem, 11vw, 4rem);
  color: var(--white);
  text-shadow: 0 0 30px rgba(200,31,42,0.5);
  margin: 0 0 1rem;
  transform: rotate(-1.5deg);
  letter-spacing: 0.02em;
}
.panel h1 span { color: var(--red); }

.rules {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.7;
  margin: 0 0 1.6rem;
}

.btn-main {
  background: var(--red);
  color: var(--white);
  font-family: 'Special Elite', monospace;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.9rem;
  padding: 0.85rem 2.1rem;
  border: 2px solid var(--white);
  cursor: pointer;
  box-shadow: 4px 4px 0 #000, 4px 4px 0 1px var(--red-dark);
}
.btn-main:active { transform: translate(2px,2px); box-shadow: 2px 2px 0 #000; }

.controls {
  margin-top: 1.4rem;
  font-size: 0.62rem;
  line-height: 1.8;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  opacity: 0.85;
}

.actions {
  display: flex;
  gap: 0.6rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 1rem;
}
.btn-secondary {
  display: inline-block;
  background: transparent;
  color: var(--white);
  border: 1px solid var(--muted);
  font-family: 'Special Elite', monospace;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.75rem;
  padding: 0.65rem 1.3rem;
  cursor: pointer;
  text-decoration: none;
}
.btn-secondary:hover { border-color: var(--white); }

/* ---- Cartridge-boot chrome: title line, loading beat, menus ---- */
.cart-line {
  font-size: 0.58rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 0.9rem;
}

.loading-panel { max-width: 24rem; }
.loading-label {
  font-size: 0.72rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--red);
  margin: 0 0 1rem;
}
.loading-track {
  height: 0.85rem;
  border: 2px solid var(--red-dark);
  background: rgba(0,0,0,0.6);
  padding: 2px;
}
.loading-fill {
  height: 100%;
  width: 0%;
  background: repeating-linear-gradient(
    90deg, var(--red) 0 6px, var(--red-dark) 6px 10px
  );
}
.loading-tip {
  margin: 1.1rem 0 0;
  font-size: 0.72rem;
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: var(--muted);
  min-height: 3.4rem;
}
.loading-tip b { color: var(--white); font-weight: 400; }

.menu-panel { max-width: 30rem; }
.menu-title {
  font-family: 'Butcherman', cursive;
  font-weight: 400;
  font-size: clamp(1.7rem, 7vw, 2.5rem);
  color: var(--white);
  margin: 0 0 1.1rem;
  transform: rotate(-1deg);
}
.menu-title span { color: var(--red); }
.menu-sub {
  font-size: 0.78rem;
  line-height: 1.75;
  color: var(--muted);
  margin: 0 0 1.1rem;
  text-align: left;
}
.menu-sub b { color: var(--white); font-weight: 400; }
.menu-sub a { color: var(--red); }

.menu-list {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 1.2rem;
}
.menu-item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  width: 100%;
  text-align: left;
  background: rgba(0,0,0,0.35);
  border: 1px solid var(--line);
  border-left: 3px solid var(--red-dark);
  color: var(--white);
  font-family: 'Special Elite', monospace;
  padding: 0.7rem 0.9rem;
  cursor: pointer;
}
.menu-item:hover, .menu-item:focus-visible {
  border-left-color: var(--red);
  background: rgba(200,31,42,0.12);
  outline: none;
}
.menu-item.selected { border-left-color: var(--red); background: rgba(200,31,42,0.18); }
.menu-item-name {
  font-size: 0.92rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.menu-item-note {
  font-size: 0.62rem;
  letter-spacing: 0.06em;
  color: var(--muted);
  text-align: right;
}
.menu-foot {
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin: 0;
}
.menu-foot a { color: var(--muted); }
.menu-foot a:hover { color: var(--red); }

.how-list {
  text-align: left;
  margin: 0 0 1.2rem;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.4rem 1rem;
}
.how-list dt {
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--red);
}
.how-list dd {
  margin: 0;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--white);
}

.opt-row {
  display: grid;
  grid-template-columns: 8rem 1fr 2.5rem;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.9rem;
  text-align: left;
}
.opt-label {
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.opt-range {
  width: 100%;
  accent-color: var(--red);
}
.opt-val {
  font-size: 0.72rem;
  color: var(--white);
  text-align: right;
}
.opt-toggle {
  background: transparent;
  border: 1px solid var(--muted);
  color: var(--white);
  font-family: 'Special Elite', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.45rem 0.9rem;
  cursor: pointer;
  justify-self: start;
}
.opt-toggle:hover { border-color: var(--red); }

/* ---- Stage intro ---- */
.stage-num {
  font-size: 0.68rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--red);
  margin: 0 0 0.7rem;
}
.stage-name {
  font-family: 'Butcherman', cursive;
  font-weight: 400;
  font-size: clamp(2rem, 8vw, 3.1rem);
  color: var(--white);
  margin: 0 0 0.4rem;
  transform: rotate(-1deg);
}
.stage-years {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 1.1rem;
}
.stage-blurb {
  color: var(--white);
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: 1rem;
  line-height: 1.6;
  margin: 0 0 1.1rem;
}
.stage-buffers {
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  line-height: 1.8;
  margin: 0 0 1.8rem;
}
.stage-buffers b { color: var(--white); font-weight: 400; }

/* ---- Stat reveal ---- */
.reveal-kicker {
  font-size: 0.66rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 0.7rem;
}
.reveal-number {
  font-family: 'Butcherman', cursive;
  font-weight: 400;
  font-size: clamp(2.4rem, 11vw, 3.8rem);
  color: var(--red);
  text-shadow: 0 0 30px rgba(200,31,42,0.5);
  line-height: 1;
  margin-bottom: 1rem;
}
.reveal-label {
  color: var(--white);
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: 1.02rem;
  line-height: 1.55;
  margin: 0 0 0.6rem;
}
.reveal-source {
  color: var(--muted);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  margin: 0 0 1.6rem;
}
.reveal-actions {
  display: flex;
  gap: 0.6rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---- End / score ---- */
.end-kicker {
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 0.9rem;
}
.end-headline {
  font-family: 'Butcherman', cursive;
  font-weight: 400;
  font-size: clamp(1.9rem, 7.5vw, 2.8rem);
  color: var(--red);
  text-shadow: 0 0 30px rgba(200,31,42,0.6);
  margin: 0 0 1.2rem;
  transform: rotate(-1deg);
}
.end-text {
  color: var(--white);
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: 0.98rem;
  line-height: 1.7;
  margin: 0 0 1.2rem;
}
.final-score {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 1.4rem;
}
.final-score span {
  color: var(--red);
  font-size: 1.5rem;
  letter-spacing: 0.04em;
  margin-left: 0.4rem;
}

.score-form { margin-bottom: 0.4rem; }
.score-label {
  display: block;
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.5rem;
}
.score-input {
  width: 100%;
  max-width: 18rem;
  background: rgba(0,0,0,0.5);
  border: 1px solid var(--red-dark);
  color: var(--white);
  font-family: 'Special Elite', monospace;
  font-size: 1rem;
  letter-spacing: 0.08em;
  text-align: center;
  padding: 0.65rem 0.75rem;
}
.score-input:focus { outline: none; border-color: var(--red); }
/* Honeypot: off-screen rather than display:none so bots that skip hidden
   fields still fill it. Matches the comments system's approach. */
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}
.score-note {
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  color: var(--muted);
  min-height: 1.1rem;
  margin: 0.8rem 0 0;
}
.score-note.err { color: var(--red); }

/* ---- Leaderboard ---- */
.board-panel { max-width: 26rem; }
.board-sub {
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin: 0 0 1rem;
}
/* Segmented difficulty selector above the board. Same visual language as
   .opt-toggle, laid out as one strip so the three boards read as siblings
   rather than as separate screens. */
.board-tabs {
  display: flex;
  gap: 0.3rem;
  margin-bottom: 0.9rem;
  flex-wrap: wrap;
  justify-content: center;
}
.board-tab {
  flex: 1 1 auto;
  background: rgba(0,0,0,0.35);
  border: 1px solid var(--line);
  border-bottom: 2px solid var(--line);
  color: var(--muted);
  font-family: 'Special Elite', monospace;
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.5rem 0.4rem;
  cursor: pointer;
  line-height: 1.4;
  white-space: nowrap;
}
.board-tab:hover { color: var(--white); border-bottom-color: var(--red-dark); }
.board-tab[aria-selected="true"] {
  color: var(--white);
  background: rgba(200,31,42,0.14);
  border-bottom-color: var(--red);
}
.board-tab-count {
  display: block;
  font-size: 0.55rem;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.board-list {
  list-style: none;
  margin: 0 0 1.2rem;
  padding: 0 0.25rem;
  max-height: 50vh;
  overflow-y: auto;
  text-align: left;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.board-list li {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.4rem 0.2rem;
  border-bottom: 1px solid rgba(34,26,24,0.6);
  font-size: 0.78rem;
}
.board-list li:last-child { border-bottom: none; }
.board-rank { color: var(--muted); width: 2.2rem; flex: 0 0 auto; font-size: 0.68rem; }
.board-name { flex: 1 1 auto; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.board-score { color: var(--red); flex: 0 0 auto; }
.board-list li.you { background: rgba(200,31,42,0.14); }
.board-empty { color: var(--muted); justify-content: center; }

@media (max-width: 480px) {
  .legend-items { gap: 0.3rem 0.7rem; }
  .legend-name { font-size: 0.55rem; }
  .legend-item canvas { width: 22px; height: 22px; }
  .hud { gap: 1rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}