:root {
  color-scheme: dark;
  --bg: #151817;
  --panel: #202522;
  --panel-2: #2a302c;
  --line: #4a574f;
  --text: #f4f0df;
  --muted: #b9b29f;
  --accent: #f2ca52;
  --danger: #e45353;
  --blue: #4f8edb;
  --green: #65b36e;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(180deg, #111412, #20231e);
  background-size: 34px 34px, auto;
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

button,
select {
  font: inherit;
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 6;
  display: flex;
  align-items: center;
  padding: calc(4px + env(safe-area-inset-top, 0px)) max(14px, env(safe-area-inset-right, 0px)) 4px max(14px, env(safe-area-inset-left, 0px));
  background: #111412;
}

.site-return {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 8px 10px;
  color: var(--text);
  font-size: 14px;
  text-underline-offset: 4px;
}

.site-return:hover,
.site-return:focus-visible {
  color: var(--accent);
}

.site-return:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.shell {
  display: grid;
  grid-template-columns: minmax(300px, 520px) minmax(260px, 340px);
  gap: 22px;
  width: min(980px, calc(100vw - 28px));
  margin: 0 auto;
  padding: 20px 0;
  align-items: start;
}

.start-screen {
  position: fixed;
  inset: 0;
  z-index: 5;
  display: flex;
  justify-content: center;
  overflow-y: auto;
  padding: calc(70px + env(safe-area-inset-top, 0px)) max(18px, env(safe-area-inset-right, 0px)) max(18px, env(safe-area-inset-bottom, 0px)) max(18px, env(safe-area-inset-left, 0px));
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(180deg, rgba(17, 20, 18, 0.72), rgba(32, 35, 30, 0.74));
  background-size: 34px 34px, auto;
  backdrop-filter: blur(1px);
}

.start-panel {
  display: grid;
  gap: 18px;
  flex-shrink: 0;
  align-self: flex-start;
  margin-block: auto;
  width: min(360px, 100%);
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: color-mix(in srgb, var(--panel), #000 12%);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.38);
}

.start-panel h1 {
  font-size: 44px;
}

.menu-art {
  display: block;
  width: 100%;
  aspect-ratio: 32 / 21;
  border: 1px solid rgba(127, 140, 128, 0.42);
  border-radius: 8px;
  background: #171b19;
}

.start-controls {
  display: grid;
  gap: 12px;
}

.start-controls label {
  display: grid;
  gap: 6px;
}

.start-controls span {
  color: var(--muted);
  font-size: 13px;
}

.start-music-row {
  padding: 10px;
  border: 1px solid rgba(242, 202, 82, 0.34);
  border-radius: 6px;
  background: rgba(242, 202, 82, 0.06);
}

.controls-help {
  margin-top: -4px;
  color: var(--muted);
  font-size: 13px;
}

.controls-help summary {
  width: fit-content;
  cursor: pointer;
  color: var(--text);
}

.controls-help div {
  display: grid;
  gap: 4px;
  padding-top: 7px;
  line-height: 1.3;
}

.start-hint {
  margin: -4px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.35;
}

.hint-touch {
  display: none;
}

.play-area {
  display: flex;
  flex-direction: column;
  gap: 8px;
  justify-content: center;
}

.mobile-play-hud {
  display: none;
}

.board-wrap {
  position: relative;
  width: min(100%, 448px);
  aspect-ratio: 1 / 1.72;
  min-height: 560px;
  border: 2px solid #77836e;
  border-radius: 8px;
  background: #101413;
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.35);
  overflow: hidden;
  touch-action: none;
  user-select: none;
}

#game {
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
}

.overlay,
.cutscene {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(12, 15, 14, 0.74);
  z-index: 2;
}

.overlay {
  gap: 12px;
  align-content: center;
}

.overlay-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  width: min(240px, calc(100% - 32px));
}

.overlay-title {
  font-size: 30px;
  font-weight: 800;
}

.is-hidden {
  display: none;
}

.panel {
  display: grid;
  gap: 16px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: color-mix(in srgb, var(--panel), #000 10%);
}

.eyebrow,
.keys,
.next > span,
.virus-window > span,
.stats span,
.select-row span {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.25;
}

h1 {
  margin: 2px 0 0;
  font-size: 34px;
  line-height: 1;
  letter-spacing: 0;
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.stats div,
.next,
.virus-window {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel-2);
}

.stats div {
  min-width: 0;
  padding: 10px;
}

.stats strong {
  display: block;
  margin-top: 3px;
  font-size: 24px;
  line-height: 1;
}

.select-row {
  display: grid;
  gap: 7px;
}

select {
  width: 100%;
  min-height: 38px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #161a18;
  color: var(--text);
}

.preview-row {
  display: grid;
  gap: 8px;
}

.next,
.virus-window {
  display: grid;
  grid-template-columns: minmax(44px, 1fr) 112px;
  align-items: center;
  padding: 10px 12px;
}

#next,
#virusWindow {
  width: 112px;
  height: 72px;
}

#nextMobile,
#virusMobile {
  width: 88px;
  height: 56px;
}

.buttons,
.audio-row,
.touch {
  display: grid;
  gap: 8px;
}

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

.audio-row {
  grid-template-columns: minmax(92px, 0.8fr) 1.2fr;
  align-items: end;
}

.audio-row label {
  display: grid;
  gap: 5px;
}

.audio-row span {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.25;
}

button {
  min-height: 40px;
  border: 1px solid #87937d;
  border-radius: 6px;
  background: #333a35;
  color: var(--text);
  cursor: pointer;
}

button:hover,
button:focus-visible {
  background: #414a43;
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.keys {
  display: grid;
  gap: 5px;
  padding-top: 2px;
}

.touch {
  display: none;
  grid-template-columns: repeat(3, 1fr);
}

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

.cutscene {
  position: fixed;
  padding: 22px;
}

.cutscene canvas {
  width: min(720px, calc(100vw - 44px));
  aspect-ratio: 2 / 1;
  border: 2px solid #8d9a83;
  border-radius: 8px;
  background: #161a18;
}

.cutscene button {
  margin-top: 14px;
  width: min(260px, calc(100vw - 44px));
}

@media (hover: none) and (pointer: coarse) {
  .hint-keyboard {
    display: none;
  }

  .hint-touch {
    display: inline;
  }
}

@media (max-width: 760px) {
  .shell {
    grid-template-columns: 1fr;
    width: min(520px, calc(100vw - 18px));
    padding: 9px 0 18px;
  }

  .mobile-play-hud {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr)) 76px;
    gap: 6px;
    width: 100%;
  }

  .mobile-play-hud > div {
    min-width: 0;
    padding: 8px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: color-mix(in srgb, var(--panel), #000 10%);
  }

  .mobile-play-hud span {
    display: block;
    color: var(--muted);
    font-size: 12px;
    line-height: 1.1;
  }

  .mobile-play-hud strong {
    display: block;
    margin-top: 3px;
    font-size: 20px;
    line-height: 1;
  }

  .mobile-next {
    display: grid;
    grid-template-columns: 1fr 92px;
    grid-column: 3 / 5;
    grid-row: 2;
    align-items: center;
    gap: 6px;
  }

  #nextMobile {
    width: 92px;
    height: 56px;
  }

  .mobile-virus {
    display: grid;
    grid-template-columns: 1fr 72px;
    grid-column: 1 / 3;
    grid-row: 2;
    align-items: center;
    gap: 6px;
  }

  #virusMobile {
    width: 72px;
    height: 56px;
  }

  .mobile-pause {
    display: grid;
    grid-column: 4;
    grid-row: 1;
    align-items: stretch;
    padding: 0;
    border: 0;
    background: transparent;
  }

  .mobile-pause button {
    min-height: 100%;
    padding: 0 6px;
    font-size: 15px;
    font-weight: 700;
  }

  .board-wrap {
    min-height: auto;
    height: min(64vh, 596px);
  }

  .panel {
    padding: 14px;
  }

  .panel header,
  .panel .stats,
  .panel .preview-row,
  #pause {
    display: none;
  }

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

  .keys {
    display: none;
  }

  h1 {
    font-size: 28px;
  }
}