:root {
  color-scheme: dark;
  --bg: #101115;
  --panel: #191b22;
  --panel-2: #222631;
  --text: #f6f4ea;
  --muted: #aaaebd;
  --cyan: #31d7ff;
  --pink: #ff4fb7;
  --yellow: #ffd447;
  --green: #57e389;
  --red: #ff665a;
  --line: rgba(255, 255, 255, 0.14);
  --shadow: 0 26px 80px rgba(0, 0, 0, 0.42);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  background:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(135deg, #101115 0%, #151822 52%, #0f1513 100%);
  background-size: 34px 34px, 34px 34px, auto;
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  letter-spacing: 0;
  overflow-x: hidden;
}

.particle-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

button {
  font: inherit;
}

.app {
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto auto 1fr;
  gap: 18px;
  padding: clamp(14px, 2vw, 28px);
  position: relative;
  z-index: 1;
}

.hud,
.stage,
.keyboard-panel {
  width: min(1180px, 100%);
  margin: 0 auto;
}

.hud {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand-logo {
  width: clamp(87px, 12vw, 143px);
  height: auto;
  display: block;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: clamp(1.35rem, 2vw, 2.05rem);
  line-height: 1;
}

.brand p,
.meter-label,
.guess-heading span {
  color: var(--muted);
}

.meters {
  display: grid;
  grid-template-columns: minmax(170px, 1.35fr) minmax(96px, 0.85fr);
  gap: 10px;
}

.meter {
  background: rgba(25, 27, 34, 0.84);
  border: 1px solid var(--line);
  border-radius: 8px;
  min-height: 70px;
  padding: 10px 14px;
  display: grid;
  align-content: center;
  box-shadow: var(--shadow);
  position: relative;
}

.meter strong {
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.45rem, 3vw, 2.4rem);
  line-height: 1;
}

.timer-meter strong {
  color: var(--yellow);
  font-size: clamp(2.75rem, 5.6vw, 4.5rem);
}

.timer-meter.wrong-flash {
  animation: timerWrongFlash 620ms ease;
}

.timer-bonus-pop,
.timer-penalty-pop {
  position: absolute;
  font-weight: 950;
  opacity: 0;
  pointer-events: none;
  text-shadow: 0 3px 18px rgba(0, 0, 0, 0.42);
}

.timer-bonus-pop {
  right: 12px;
  top: -24px;
  color: var(--green);
  font-size: clamp(4.15rem, 10.8vw, 10rem);
  transform: translateY(12px) scale(0.75);
}

.timer-bonus-pop.is-visible {
  animation: bonusFloat 1800ms cubic-bezier(0.12, 0.82, 0.22, 1);
}

.timer-penalty-pop {
  right: 16px;
  bottom: -20px;
  color: var(--red);
  font-size: clamp(2.9rem, 7.2vw, 6.8rem);
  transform: translateY(-4px) scale(0.85);
}

.timer-penalty-pop.is-visible {
  animation: penaltyFlash 1080ms ease;
}

.stage {
  background: rgba(16, 17, 21, 0.52);
  border: 1px solid var(--line);
  border-radius: 8px;
  min-height: 48vh;
  padding: clamp(14px, 2.5vw, 28px);
  display: grid;
  grid-template-rows: 1fr;
  gap: 12px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.puzzle-stack {
  align-self: center;
  display: grid;
  gap: 12px;
  justify-items: center;
  transform: translateY(clamp(-34px, -4vh, -18px));
  width: 100%;
}

.category-line {
  display: grid;
  place-items: center;
  text-transform: uppercase;
  letter-spacing: 0;
}

.category-line strong {
  color: var(--cyan);
  font-size: clamp(1.55rem, 3.5vw, 3.1rem);
  line-height: 1;
  text-align: center;
}

.puzzle-zone {
  position: relative;
  display: grid;
  place-items: center;
  align-self: center;
  min-height: clamp(160px, 28vh, 320px);
  width: 100%;
}

.puzzle-board {
  align-self: center;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: clamp(18px, 2.8vw, 32px);
  padding: 12px 0;
}

.puzzle-board.board-exit {
  pointer-events: none;
}

.puzzle-board.board-enter {
  pointer-events: none;
}

.puzzle-board.board-enter .tile {
  animation: tileDropIn 300ms cubic-bezier(0.16, 0.88, 0.18, 1) both;
  animation-delay: var(--tile-delay);
}

.puzzle-board.board-exit .tile {
  animation: tileDropOut 260ms ease both;
  animation-delay: var(--tile-delay);
}

.intro-board::before {
  content: "Press Space";
  color: rgba(246, 244, 234, 0.36);
  font-size: clamp(2rem, 7vw, 5.5rem);
  font-weight: 950;
  text-transform: uppercase;
}

.word {
  display: inline-flex;
  flex-wrap: nowrap;
  gap: clamp(4px, 0.7vw, 8px);
}

.continue-prompt {
  min-height: 100%;
  border: 0;
  background: rgba(16, 17, 21, 0.9);
  border-radius: 8px;
  box-shadow: 0 18px 46px rgba(0, 0, 0, 0.32);
  color: var(--green);
  cursor: pointer;
  font-weight: 900;
  font-size: clamp(1.55rem, 3.5vw, 3.1rem);
  line-height: 1.04;
  inset: 0;
  width: 100%;
  max-width: 100%;
  padding: 12px 18px;
  position: absolute;
  text-align: center;
  text-transform: uppercase;
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px) scale(0.98);
  transition: opacity 120ms ease, transform 120ms ease;
  z-index: 2;
}

.continue-prompt strong,
.continue-prompt span {
  display: block;
}

.continue-prompt span {
  margin-top: 6px;
  color: var(--muted);
  font-size: clamp(0.92rem, 1.8vw, 1.35rem);
}

.continue-prompt.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

.continue-prompt:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 4px;
  border-radius: 8px;
}

.tile {
  width: clamp(32px, 5.4vw, 64px);
  aspect-ratio: 0.82;
  border-radius: 7px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  display: grid;
  place-items: center;
  background: linear-gradient(180deg, #2b303d, #171a21);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.16),
    0 10px 26px rgba(0, 0, 0, 0.3);
  color: transparent;
  font-size: clamp(1.15rem, 4vw, 2.4rem);
  font-weight: 950;
  line-height: 1;
  text-transform: uppercase;
}

.tile.revealed {
  color: #111217;
  background: linear-gradient(180deg, #fff8d2, #ffd447);
  border-color: rgba(255, 212, 71, 0.92);
}

.tile.punctuation {
  color: var(--text);
  background: transparent;
  border-color: transparent;
  box-shadow: none;
}

.tile.just-revealed {
  animation: revealPop 210ms cubic-bezier(0.15, 1.3, 0.25, 1);
}

.tile.repeat-hit {
  animation: repeatFlash 220ms ease;
}

.letter-grid {
  display: grid;
  grid-template-columns: repeat(13, minmax(0, 1fr));
  gap: clamp(4px, 0.7vw, 8px);
}

.key-chip {
  width: clamp(24px, 4.05vw, 48px);
  aspect-ratio: 0.82;
  border-radius: 7px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  display: grid;
  place-items: center;
  color: #fff;
  background: #2a2d35;
  font-weight: 900;
  font-size: clamp(0.9rem, 2.5vw, 1.7rem);
  text-transform: uppercase;
  cursor: pointer;
  opacity: 1;
  transition:
    opacity 180ms ease,
    background 180ms ease,
    border-color 180ms ease,
    transform 140ms ease,
    filter 140ms ease;
}

.key-chip:hover:not(:disabled) {
  transform: translateY(-2px);
  filter: brightness(1.16);
}

.key-chip:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 3px;
}

.key-chip.repeat-hit {
  animation: repeatFlash 220ms ease;
}

.keyboard-panel {
  background: rgba(25, 27, 34, 0.74);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  box-shadow: var(--shadow);
  position: relative;
  min-height: calc(clamp(24px, 4.05vw, 48px) * 2 + clamp(4px, 0.7vw, 8px) + 24px);
}

.letter-grid {
  justify-content: center;
  justify-items: center;
}

.key-chip.guessed {
  opacity: 0.25;
}

.key-chip.bad {
  color: #fff;
  background: #5a1419;
  border-color: rgba(255, 102, 90, 0.72);
}

.keyboard-panel.ready-reset .key-chip {
  animation: keyReady 260ms ease both;
  animation-delay: var(--key-delay);
}

.overlay {
  position: fixed;
  inset: 0;
  display: none;
  place-items: center;
  padding: 20px;
  background: rgba(9, 10, 13, 0.78);
  backdrop-filter: blur(14px);
  z-index: 10;
}

.overlay.is-visible {
  display: grid;
}

.dialog {
  width: min(560px, 100%);
  background: linear-gradient(180deg, rgba(34, 38, 49, 0.98), rgba(17, 19, 26, 0.98));
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  padding: clamp(22px, 4vw, 42px);
  box-shadow: var(--shadow);
  display: grid;
  gap: 18px;
}

.eyebrow {
  color: var(--pink);
  font-size: 0.8rem;
  font-weight: 900;
  text-transform: uppercase;
}

.dialog h2 {
  font-size: clamp(2rem, 7vw, 4.8rem);
  line-height: 0.92;
}

.title-logo {
  width: min(420px, 92%);
  height: auto;
  justify-self: center;
}

.start-rules {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  color: var(--muted);
  font-weight: 700;
  line-height: 1.35;
  list-style: none;
}

.start-rules li {
  min-height: 30px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.start-rules li::before {
  content: "";
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 16px rgba(87, 227, 137, 0.4);
}

.best-line {
  margin: 0;
  color: var(--cyan);
  font-weight: 950;
  text-transform: uppercase;
}

.primary-button {
  min-height: 52px;
  border: 0;
  border-radius: 8px;
  color: #111217;
  background: linear-gradient(90deg, var(--yellow), var(--green));
  font-weight: 950;
  cursor: pointer;
  box-shadow: 0 14px 34px rgba(87, 227, 137, 0.2);
}

.primary-button:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 4px;
}

.stats-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
}

.stats-list div {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 12px;
}

.stats-list dt {
  color: var(--muted);
  font-size: 0.86rem;
}

.stats-list dd {
  margin: 4px 0 0;
  font-size: 2rem;
  font-weight: 950;
}

@keyframes revealPop {
  0% {
    transform: rotateX(78deg) scale(0.72);
    filter: brightness(1.8);
  }
  100% {
    transform: rotateX(0) scale(1);
    filter: brightness(1);
  }
}

@keyframes wrongPop {
  0%,
  100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-5px);
  }
  60% {
    transform: translateX(5px);
  }
}

@keyframes keyReady {
  0% {
    opacity: 0.25;
    background: #5a1419;
    border-color: rgba(255, 102, 90, 0.72);
  }
  100% {
    opacity: 1;
    background: #2a2d35;
    border-color: rgba(255, 255, 255, 0.16);
  }
}

@keyframes repeatFlash {
  0%,
  100% {
    box-shadow: none;
  }
  50% {
    box-shadow: 0 0 0 4px rgba(49, 215, 255, 0.32);
    filter: brightness(1.25);
  }
}

@keyframes boardEnter {
  0% {
    opacity: 0;
    transform: translateY(20px) scale(0.96);
    filter: blur(5px);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0);
  }
}

@keyframes tileDropIn {
  0% {
    opacity: 0;
    transform: translateY(-16px) scale(0.96);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes tileDropOut {
  0% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  100% {
    opacity: 0;
    transform: translateY(18px) scale(0.96);
  }
}

@keyframes bonusFloat {
  0% {
    opacity: 0;
    transform: translateY(16px) scale(0.72);
  }
  18% {
    opacity: 1;
    transform: translateY(-8px) scale(1.18);
  }
  48% {
    opacity: 1;
    transform: translateY(-18px) scale(1.05);
  }
  100% {
    opacity: 0;
    transform: translateY(-54px) scale(0.98);
  }
}

@keyframes penaltyFlash {
  0% {
    opacity: 0;
    transform: translateY(-4px) scale(0.8);
  }
  22% {
    opacity: 1;
    transform: translateY(4px) scale(1.12);
  }
  100% {
    opacity: 0;
    transform: translateY(22px) scale(0.96);
  }
}

@keyframes timerWrongFlash {
  0%,
  100% {
    background: rgba(25, 27, 34, 0.84);
    border-color: var(--line);
  }
  35% {
    background: rgba(255, 102, 90, 0.36);
    border-color: rgba(255, 102, 90, 0.95);
    box-shadow:
      0 0 0 3px rgba(255, 102, 90, 0.24),
      var(--shadow);
  }
}

@media (max-width: 760px) {
  .app {
    gap: 12px;
  }

  .hud {
    align-items: stretch;
    flex-direction: column;
  }

  .meters {
    grid-template-columns: 1.35fr 0.85fr;
  }

  .meter {
    min-height: 58px;
    padding: 9px;
  }

  .stage {
    min-height: 46vh;
    grid-template-rows: 1fr;
  }

  .key-chip {
    width: clamp(22px, 6.2vw, 32px);
  }

  .stats-list {
    grid-template-columns: 1fr;
  }
}