:root {
  color-scheme: light;
  font-family: "Courier New", Courier, monospace;
  --ink: #211b2d;
  --paper: #f4eedc;
  --paper-deep: #e5dcc3;
  --tomato: #ef6a4b;
  --mint: #65c5a5;
  --blue: #4b7eaa;
  --yellow: #f5c453;
  --white: #fffaf0;
  --shadow: 7px 7px 0 var(--ink);
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
}

body {
  min-height: 100svh;
  background: var(--ink);
  color: var(--ink);
}

button,
a {
  font: inherit;
}

button {
  color: inherit;
}

button:focus-visible,
a:focus-visible,
canvas:focus-visible {
  outline: 4px solid var(--yellow);
  outline-offset: 4px;
}

[hidden] {
  display: none !important;
}

.app {
  display: grid;
  grid-template-rows: 50px minmax(0, 1fr);
  width: 100%;
  height: 100svh;
  background: var(--ink);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-width: 0;
  padding: 0 18px;
  border-bottom: 3px solid var(--paper);
  background: var(--ink);
  color: var(--paper);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: inherit;
  text-decoration: none;
}

.wordmark-cat {
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border: 2px solid var(--paper);
  background: var(--tomato);
  color: var(--ink);
  font-family: Arial Black, Impact, sans-serif;
  font-size: 0.9rem;
  transform: rotate(-3deg);
}

.system-mark {
  color: var(--mint);
  white-space: nowrap;
}

.game-shell {
  min-width: 0;
  min-height: 0;
  padding: 12px;
}

.arena {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 0;
  overflow: hidden;
  border: 4px solid var(--ink);
  background: var(--paper);
  box-shadow: inset 0 0 0 2px var(--paper), 0 0 0 3px var(--paper);
  isolation: isolate;
}

canvas[data-game-canvas] {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  background: var(--paper);
  touch-action: none;
  transition: opacity 180ms steps(3, end);
}

[data-phase="menu"] canvas[data-game-canvas] {
  opacity: 0.72;
}

[data-phase="playing"] canvas[data-game-canvas] {
  cursor: none;
}

.corner-label {
  position: absolute;
  z-index: 2;
  top: 10px;
  padding: 5px 8px;
  border: 2px solid var(--ink);
  background: var(--paper);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  pointer-events: none;
}

.corner-label-left {
  left: 10px;
}

.corner-label-right {
  right: 10px;
}

.live-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 4px;
  background: var(--tomato);
  animation: blink 900ms steps(1, end) infinite;
}

.hud {
  position: absolute;
  z-index: 4;
  top: 10px;
  left: 50%;
  display: flex;
  gap: 8px;
  transform: translateX(-50%);
  pointer-events: none;
}

.hud-block {
  display: flex;
  align-items: center;
  min-height: 46px;
  border: 3px solid var(--ink);
  background: var(--paper);
  box-shadow: 4px 4px 0 var(--ink);
}

.hud-time {
  min-width: 126px;
}

.hud-label {
  align-self: stretch;
  display: grid;
  place-items: center;
  padding: 0 8px;
  background: var(--ink);
  color: var(--paper);
  font-size: 0.58rem;
  letter-spacing: 0.12em;
  writing-mode: vertical-rl;
}

[data-timer] {
  min-width: 86px;
  padding: 0 10px;
  font-family: Arial Black, Impact, sans-serif;
  font-size: 1.65rem;
  letter-spacing: -0.06em;
  text-align: center;
}

.hud-cats {
  gap: 8px;
  min-width: 92px;
  justify-content: center;
  padding: 0 10px;
  background: var(--yellow);
  font-weight: 700;
}

.cat-glyph {
  font-size: 0.75rem;
  white-space: nowrap;
}

[data-cat-count] {
  font-family: Arial Black, Impact, sans-serif;
  font-size: 1.35rem;
}

.screen {
  position: absolute;
  z-index: 5;
  inset: 0;
  display: grid;
  place-items: center;
  padding: clamp(18px, 5vw, 64px);
}

.menu-screen {
  pointer-events: none;
}

.menu-stage {
  width: min(900px, 92vw);
  text-align: center;
}

.title-cluster {
  position: relative;
  width: fit-content;
  margin: 0 auto clamp(22px, 4vh, 44px);
  transform: rotate(-1deg);
}

.eyebrow {
  display: inline-block;
  margin: 0 0 4px;
  padding: 5px 9px;
  border: 2px solid var(--ink);
  background: var(--mint);
  font-size: clamp(0.58rem, 1.2vw, 0.75rem);
  font-weight: 700;
  letter-spacing: 0.12em;
}

h1 {
  display: flex;
  flex-direction: column;
  margin: 0;
  color: var(--ink);
  font-family: Arial Black, Impact, sans-serif;
  font-size: clamp(4.6rem, 12vw, 9.5rem);
  font-weight: 900;
  letter-spacing: -0.09em;
  line-height: 0.68;
  text-transform: uppercase;
}

h1 span:last-child {
  color: var(--tomato);
  text-shadow: 5px 5px 0 var(--ink);
}

.tagline {
  display: inline-block;
  margin: 18px 0 0;
  padding: 6px 10px;
  border: 2px solid var(--ink);
  background: var(--yellow);
  font-size: clamp(0.55rem, 1vw, 0.72rem);
  font-weight: 700;
  letter-spacing: 0.08em;
}

.difficulty-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(10px, 2vw, 20px);
  pointer-events: auto;
}

.difficulty {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  min-height: 116px;
  padding: 16px;
  overflow: hidden;
  border: 3px solid var(--ink);
  background: var(--paper);
  box-shadow: var(--shadow);
  text-align: left;
  cursor: pointer;
  transition:
    transform 100ms steps(2, end),
    box-shadow 100ms steps(2, end);
}

.difficulty:hover {
  transform: translate(-3px, -3px);
  box-shadow: 10px 10px 0 var(--ink);
}

.difficulty:active {
  transform: translate(5px, 5px);
  box-shadow: 2px 2px 0 var(--ink);
}

.difficulty-easy {
  background: var(--mint);
}

.difficulty-medium {
  background: var(--tomato);
}

.difficulty-hard {
  background: var(--yellow);
}

.choice-index {
  grid-row: 1 / 3;
  align-self: stretch;
  display: grid;
  min-width: 38px;
  place-items: center;
  margin-right: 12px;
  border-right: 2px dashed var(--ink);
  font-size: 0.65rem;
  font-weight: 700;
  writing-mode: vertical-rl;
}

.choice-name {
  font-size: clamp(0.64rem, 1.3vw, 0.8rem);
  font-weight: 700;
  letter-spacing: 0.12em;
}

.difficulty strong {
  align-self: end;
  font-family: Arial Black, Impact, sans-serif;
  font-size: clamp(2rem, 4vw, 3.4rem);
  letter-spacing: -0.08em;
  line-height: 0.9;
}

.pressure {
  position: absolute;
  right: 9px;
  bottom: 7px;
  font-size: 0.5rem;
  letter-spacing: 0.08em;
}

.edition-mark {
  display: inline-block;
  margin: 24px 0 0;
  padding: 5px 10px;
  background: var(--ink);
  color: var(--paper);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.13em;
}

.end-screen {
  background: rgb(33 27 45 / 42%);
}

.end-panel {
  width: min(510px, calc(100vw - 48px));
  padding: clamp(22px, 4vw, 38px);
  border: 4px solid var(--ink);
  background: var(--paper);
  box-shadow: 12px 12px 0 var(--ink);
  text-align: center;
  transform: rotate(0.7deg);
  animation: panel-in 220ms steps(4, end) both;
}

.end-stamp {
  display: inline-block;
  margin: 0 0 12px;
  padding: 5px 8px;
  border: 2px solid var(--ink);
  background: var(--yellow);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.end-panel h2 {
  margin: 0;
  font-family: Arial Black, Impact, sans-serif;
  font-size: clamp(3.2rem, 10vw, 6rem);
  letter-spacing: -0.08em;
  line-height: 0.9;
}

[data-end-state="lost"] h2 {
  color: var(--tomato);
  text-shadow: 4px 4px 0 var(--ink);
}

[data-end-state="won"] h2 {
  color: var(--mint);
  text-shadow: 4px 4px 0 var(--ink);
}

.end-icon {
  margin: 22px 0 10px;
  font-size: clamp(1rem, 4vw, 1.6rem);
  font-weight: 700;
  letter-spacing: 0.03em;
}

.result-line {
  margin: 16px 0 24px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.end-actions {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 10px;
}

.action {
  min-height: 50px;
  border: 3px solid var(--ink);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  cursor: pointer;
}

.action-primary {
  background: var(--tomato);
  box-shadow: 5px 5px 0 var(--ink);
}

.action-secondary {
  background: var(--paper-deep);
}

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

@keyframes blink {
  0%,
  55% {
    opacity: 1;
  }

  56%,
  100% {
    opacity: 0.2;
  }
}

@keyframes panel-in {
  from {
    opacity: 0;
    transform: translateY(18px) rotate(0.7deg);
  }

  to {
    opacity: 1;
    transform: translateY(0) rotate(0.7deg);
  }
}

@media (max-width: 700px) {
  .app {
    grid-template-rows: 44px minmax(0, 1fr);
  }

  .topbar {
    padding: 0 10px;
    font-size: 0.6rem;
  }

  .system-mark {
    max-width: 40vw;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .game-shell {
    padding: 7px;
  }

  .arena {
    border-width: 3px;
  }

  .corner-label {
    top: 7px;
    padding: 4px 6px;
    font-size: 0.5rem;
  }

  .corner-label-left {
    left: 7px;
  }

  .corner-label-right {
    right: 7px;
  }

  .hud {
    top: 38px;
  }

  .hud-block {
    min-height: 40px;
    border-width: 2px;
    box-shadow: 3px 3px 0 var(--ink);
  }

  .hud-time {
    min-width: 106px;
  }

  [data-timer] {
    min-width: 72px;
    padding: 0 8px;
    font-size: 1.35rem;
  }

  .hud-cats {
    min-width: 75px;
    padding: 0 7px;
  }

  .screen {
    padding: 14px;
  }

  .menu-stage {
    width: 100%;
  }

  .title-cluster {
    max-width: 100%;
    margin-bottom: 26px;
  }

  h1 {
    font-size: clamp(4rem, 20vw, 5.2rem);
  }

  .tagline {
    margin-top: 14px;
    font-size: 0.5rem;
  }

  .difficulty-grid {
    gap: 7px;
  }

  .difficulty {
    display: flex;
    min-width: 0;
    min-height: 100px;
    flex-direction: column;
    justify-content: space-between;
    padding: 10px 5px;
    box-shadow: 4px 4px 0 var(--ink);
    text-align: center;
  }

  .difficulty:hover {
    transform: none;
    box-shadow: 4px 4px 0 var(--ink);
  }

  .choice-index {
    display: none;
  }

  .choice-name {
    width: 100%;
    overflow: hidden;
    font-size: clamp(0.48rem, 2.7vw, 0.62rem);
    letter-spacing: 0.04em;
    text-overflow: ellipsis;
  }

  .difficulty strong {
    font-size: clamp(1.55rem, 8vw, 2.1rem);
  }

  .pressure {
    position: static;
    min-height: 8px;
    font-size: 0.4rem;
  }

  .edition-mark {
    margin-top: 20px;
    font-size: 0.5rem;
  }

  .end-actions {
    grid-template-columns: 1fr;
  }
}

@media (max-height: 650px) {
  .title-cluster {
    margin-bottom: 16px;
  }

  h1 {
    font-size: clamp(3.5rem, 15vh, 6rem);
  }

  .tagline,
  .edition-mark {
    display: none;
  }

  .difficulty {
    min-height: 84px;
  }
}

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