@font-face {
  font-family: "Cursor Sans";
  src: local("Arial");
}

:root {
  --paper: #f0eadc;
  --ink: #11100d;
  --blue: #2545ff;
  --cyan: #00aaa9;
  --orange: #ff5539;
  --pink: #f650a5;
  --acid: #d9ff43;
  --safe-top: max(18px, env(safe-area-inset-top));
  --safe-bottom: max(16px, env(safe-area-inset-bottom));
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: var(--paper);
  color: var(--ink);
}

body {
  font-family: "Helvetica Neue", "Cursor Sans", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  touch-action: none;
  overscroll-behavior: none;
  user-select: none;
}

button {
  color: inherit;
  font: inherit;
}

button:focus-visible {
  outline: 4px solid var(--blue);
  outline-offset: 4px;
}

#arena {
  position: relative;
  isolation: isolate;
  width: 100%;
  height: 100%;
  min-height: 500px;
  overflow: hidden;
  background:
    linear-gradient(90deg, transparent 49.8%, rgba(17, 16, 13, 0.04) 50%, transparent 50.2%),
    linear-gradient(0deg, transparent 49.8%, rgba(17, 16, 13, 0.04) 50%, transparent 50.2%),
    var(--paper);
}

.paper-grain {
  position: absolute;
  z-index: -1;
  inset: 0;
  opacity: 0.24;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.82' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.13'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
}

.hud {
  position: absolute;
  z-index: 30;
  inset: var(--safe-top) 22px auto;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: start;
  pointer-events: none;
}

.brand {
  display: flex;
  align-items: flex-start;
  gap: 13px;
}

.brand strong {
  font-size: clamp(15px, 1.45vw, 21px);
  line-height: 0.8;
  letter-spacing: -0.09em;
}

.brand span,
.eyebrow,
.score-label,
.clock span,
.ending-grid span {
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.brand span {
  max-width: 68px;
  line-height: 1.3;
}

.scoreboard {
  display: grid;
  grid-template-columns: auto auto;
  align-items: end;
  column-gap: 7px;
  text-align: right;
}

.scoreboard strong {
  grid-row: 2;
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: clamp(24px, 3vw, 43px);
  font-weight: 900;
  line-height: 0.82;
  letter-spacing: -0.1em;
  font-variant-numeric: tabular-nums;
}

.score-label {
  grid-column: 1 / -1;
}

.combo {
  grid-row: 2;
  min-width: 34px;
  padding: 4px 6px 3px;
  background: var(--acid);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 12px;
  font-weight: 900;
  transform: rotate(-2deg);
}

.clock {
  justify-self: end;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.clock strong {
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: clamp(24px, 3vw, 43px);
  line-height: 0.82;
  letter-spacing: -0.08em;
  font-variant-numeric: tabular-nums;
}

.opening {
  position: absolute;
  z-index: 80;
  inset: 0;
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  padding: 0 0 clamp(110px, 16vh, 170px) clamp(28px, 7vw, 110px);
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  transition: opacity 400ms ease, visibility 400ms;
}

html[data-state="playing"] .opening,
html[data-state="paused"] .opening,
html[data-state="ended"] .opening {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.opening-copy {
  position: relative;
  z-index: 2;
  width: min(490px, calc(100vw - 56px));
  padding: 0;
}

.eyebrow {
  margin: 0 0 18px;
}

.opening h1 {
  max-width: 440px;
  margin: 0;
  font-size: clamp(36px, 4.3vw, 61px);
  font-weight: 900;
  line-height: 0.84;
  letter-spacing: -0.085em;
}

.opening-copy > p:not(.eyebrow, .alternate) {
  max-width: 410px;
  margin: 24px 0;
  font-size: clamp(16px, 1.7vw, 21px);
  font-weight: 650;
  line-height: 1.18;
}

#start-button,
#replay-button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  gap: 10px;
  padding: 0 17px;
  border: 0;
  border-radius: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
}

#start-button:hover,
#replay-button:hover {
  background: var(--blue);
}

.button-pointer,
.opening-swarm i,
.echo,
#live-pointer {
  width: 18px;
  height: 27px;
  background: currentColor;
  clip-path: polygon(0 0, 0 100%, 28% 73%, 49% 100%, 66% 91%, 47% 64%, 83% 62%);
}

.button-pointer {
  color: var(--acid);
  transform: rotate(-19deg);
}

.alternate {
  margin: 14px 0 0;
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 10px;
  line-height: 1.4;
}

.opening-swarm {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.opening-swarm i {
  position: absolute;
  left: var(--x);
  top: var(--y);
  width: clamp(24px, 4vw, 54px);
  height: clamp(36px, 6vw, 81px);
  background: var(--blue);
  opacity: 0.14;
  transform: rotate(var(--r));
  animation: opening-drift 3.7s ease-in-out infinite alternate;
}

.opening-swarm i:nth-child(2n) {
  background: var(--orange);
  animation-delay: -1.8s;
}

.opening-swarm i:nth-child(3n) {
  background: var(--cyan);
  animation-delay: -0.9s;
}

@keyframes opening-drift {
  to { translate: 13px -17px; rotate: 16deg; }
}

#target-layer,
#echo-layer,
#burst-layer {
  position: absolute;
  z-index: 10;
  inset: 0;
  pointer-events: none;
}

#target-layer {
  z-index: 20;
}

#echo-layer {
  z-index: 18;
}

#burst-layer {
  z-index: 24;
}

.target {
  position: absolute;
  width: var(--size);
  height: var(--size);
  color: var(--target-color);
  transform: translate3d(var(--x), var(--y), 0) rotate(var(--rotation));
  will-change: transform;
}

.target.ring {
  border: max(5px, calc(var(--size) * 0.13)) solid currentColor;
  border-radius: 50%;
  background: transparent;
}

.target.cross::before,
.target.cross::after {
  position: absolute;
  content: "";
  top: 0;
  left: 39%;
  width: 22%;
  height: 100%;
  background: currentColor;
}

.target.cross::after {
  transform: rotate(90deg);
}

.target.diamond {
  border: max(4px, calc(var(--size) * 0.11)) solid currentColor;
  background: transparent;
  transform: translate3d(var(--x), var(--y), 0) rotate(45deg);
}

.target.hit {
  animation: target-hit 240ms cubic-bezier(.2,.8,.2,1) forwards;
}

@keyframes target-hit {
  65% { scale: 1.7; opacity: 1; }
  to { scale: 0.2; opacity: 0; }
}

.echo {
  position: absolute;
  top: 0;
  left: 0;
  width: var(--echo-size);
  height: calc(var(--echo-size) * 1.5);
  color: var(--echo-color);
  background: currentColor;
  filter: drop-shadow(1px 1px 0 rgba(240, 234, 220, 0.85));
  transform: translate3d(var(--x), var(--y), 0) rotate(var(--r));
  transform-origin: 1px 1px;
  will-change: transform;
  transition: scale 90ms ease-out;
}

.echo::after {
  position: absolute;
  content: "";
  left: 2px;
  top: -8px;
  width: 2px;
  height: 8px;
  background: currentColor;
  opacity: 0.45;
}

.echo.bounced {
  scale: 0.56 1.45;
}

#live-pointer {
  position: absolute;
  z-index: 40;
  left: 0;
  top: 0;
  width: 24px;
  height: 36px;
  color: var(--orange);
  background: currentColor;
  filter: drop-shadow(2px 2px 0 var(--paper));
  transform: translate3d(-100px, -100px, 0);
  transform-origin: 1px 1px;
  pointer-events: none;
  will-change: transform;
}

html[data-state="playing"] body {
  cursor: none;
}

.burst {
  position: absolute;
  min-width: 30px;
  padding: 3px 5px;
  background: var(--ink);
  color: var(--paper);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 9px;
  font-weight: 900;
  text-align: center;
  transform: translate3d(var(--x), var(--y), 0) rotate(var(--r));
  animation: burst-out 640ms cubic-bezier(.16,.77,.25,1) forwards;
}

@keyframes burst-out {
  to { translate: 0 -44px; rotate: -8deg; scale: 1.5; opacity: 0; }
}

.impact-ring {
  position: absolute;
  width: var(--impact-size);
  height: var(--impact-size);
  border: 5px solid var(--impact-color);
  border-radius: 50%;
  transform: translate3d(var(--x), var(--y), 0) scale(0.2);
  animation: impact-out 440ms ease-out forwards;
}

@keyframes impact-out {
  55% { opacity: 1; }
  to { opacity: 0; transform: translate3d(var(--x), var(--y), 0) scale(2.2); }
}

.wall-pulse {
  position: absolute;
  width: var(--pulse-width);
  height: var(--pulse-height);
  background: var(--pulse-color);
  transform: translate3d(var(--x), var(--y), 0) scale(0.2);
  transform-origin: center;
  animation: wall-pulse 260ms ease-out forwards;
}

@keyframes wall-pulse {
  45% { opacity: 1; transform: translate3d(var(--x), var(--y), 0) scale(1); }
  to { opacity: 0; transform: translate3d(var(--x), var(--y), 0) scale(1.7); }
}

.field-word {
  position: absolute;
  z-index: 3;
  top: 50%;
  left: 50%;
  color: var(--ink);
  opacity: 0;
  font-size: min(23vw, 330px);
  font-weight: 950;
  line-height: 0.7;
  letter-spacing: -0.11em;
  transform: translate(-50%, -50%);
  transition: opacity 250ms;
  white-space: nowrap;
  pointer-events: none;
}

html[data-state="playing"] .field-word {
  opacity: 0.035;
}

.phase-card {
  position: absolute;
  z-index: 28;
  top: 50%;
  left: 50%;
  max-width: min(680px, 84vw);
  padding: 9px 13px 8px;
  background: var(--ink);
  color: var(--paper);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: clamp(14px, 2.5vw, 33px);
  font-weight: 900;
  letter-spacing: -0.04em;
  text-align: center;
  text-transform: uppercase;
  opacity: 0;
  transform: translate(-50%, -50%) rotate(-2deg) scale(0.8);
  pointer-events: none;
}

.phase-card.show {
  animation: phase-flash 1.45s cubic-bezier(.2,.8,.2,1) forwards;
}

@keyframes phase-flash {
  12%, 70% { opacity: 1; transform: translate(-50%, -50%) rotate(-2deg) scale(1); }
  to { opacity: 0; transform: translate(-50%, -50%) rotate(1deg) scale(1.08); }
}

.footer {
  position: absolute;
  z-index: 31;
  right: 22px;
  bottom: var(--safe-bottom);
  left: 22px;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  pointer-events: none;
}

.instructions {
  display: flex;
  flex-wrap: wrap;
  gap: 13px;
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 9px;
  font-weight: 700;
  line-height: 1.4;
  text-transform: uppercase;
}

kbd {
  padding: 2px 4px;
  background: var(--ink);
  color: var(--paper);
  font: inherit;
}

.controls {
  display: flex;
  gap: 8px;
  pointer-events: auto;
}

.utility {
  min-width: 78px;
  min-height: 44px;
  padding: 0 11px;
  border: 1px solid var(--ink);
  background: color-mix(in srgb, var(--paper) 84%, transparent);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 9px;
  font-weight: 900;
  cursor: pointer;
}

.utility:hover {
  background: var(--ink);
  color: var(--paper);
}

.ending {
  position: absolute;
  z-index: 70;
  inset: 0;
  display: grid;
  place-content: center;
  width: 100%;
  padding: 22px;
  background: color-mix(in srgb, var(--acid) 90%, transparent);
  opacity: 0;
  visibility: hidden;
  transition: opacity 350ms ease, visibility 350ms;
}

html[data-state="ended"] .ending {
  opacity: 1;
  visibility: visible;
}

.ending-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(130px, 1fr));
  width: min(760px, 90vw);
  margin: 0 0 28px;
  border-top: 3px solid var(--ink);
  border-bottom: 3px solid var(--ink);
}

.ending-grid > div {
  display: grid;
  gap: 10px;
  padding: 20px;
  border-right: 1px solid var(--ink);
}

.ending-grid > div:last-child {
  border-right: 0;
}

.ending-grid strong {
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: clamp(34px, 4vw, 58px);
  line-height: 0.8;
  letter-spacing: -0.1em;
}

.rotate-note {
  display: none;
}

noscript {
  position: fixed;
  z-index: 999;
  inset: 20px;
  padding: 20px;
  background: var(--orange);
  color: var(--ink);
  font: 700 18px/1.3 sans-serif;
}

@media (max-width: 700px) {
  .hud {
    inset-inline: 14px;
  }

  .brand {
    gap: 7px;
  }

  .brand span {
    display: none;
  }

  .scoreboard strong,
  .clock strong {
    font-size: 25px;
  }

  .combo {
    font-size: 10px;
  }

  .opening-copy {
    width: min(340px, calc(100vw - 38px));
  }

  .opening h1 {
    font-size: clamp(37px, 12vw, 55px);
  }

  .opening-copy > p:not(.eyebrow, .alternate) {
    font-size: 16px;
  }

  .footer {
    right: 14px;
    left: 14px;
  }

  .instructions span:nth-child(n + 2) {
    display: none;
  }

  .utility {
    min-width: 62px;
    padding: 0 8px;
  }

  .ending-grid {
    grid-template-columns: 1fr;
  }

  .ending-grid > div {
    grid-template-columns: 1fr auto;
    align-items: end;
    padding: 13px 0;
    border-right: 0;
    border-bottom: 1px solid var(--ink);
  }

  .ending-grid > div:last-child {
    border-bottom: 0;
  }

  .ending-grid strong {
    font-size: 44px;
  }
}

@media (max-height: 530px) and (orientation: landscape) {
  .opening {
    padding: 0 0 55px 38px;
  }

  .opening-copy {
    width: min(620px, calc(100vw - 120px));
  }

  .opening h1 {
    font-size: 42px;
  }

  .opening-copy > p:not(.eyebrow, .alternate) {
    margin: 13px 0;
  }

  .eyebrow,
  .alternate {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .opening-swarm i {
    animation: none;
  }

  .opening,
  .ending,
  .field-word {
    transition-duration: 0.001ms;
  }

  .target.hit,
  .burst,
  .phase-card.show {
    animation-duration: 0.001ms;
  }
}