:root {
  color-scheme: dark;
  --bg: #080a12;
  --bg-glow: #142034;
  --panel: #111722;
  --panel-2: #1a2332;
  --text: #edf5ff;
  --muted: #8fa0b7;
  --accent: #3ad0e8;
  --accent-ink: #041d24;
  --border: #29374a;
  --field-border: #3a4c64;
  --danger: #ff607b;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
}

body[data-theme="neon"] {
  --bg: #040308;
  --bg-glow: #25113e;
  --panel: #110b1d;
  --panel-2: #22123a;
  --text: #fff2ff;
  --muted: #b896c5;
  --accent: #f238ff;
  --accent-ink: #210124;
  --border: #502568;
  --field-border: #a43dcc;
}

body[data-theme="retro"] {
  --bg: #001006;
  --bg-glow: #06361a;
  --panel: #061c0d;
  --panel-2: #0a2a14;
  --text: #c9ffda;
  --muted: #6db985;
  --accent: #32ff72;
  --accent-ink: #001d08;
  --border: #1c6034;
  --field-border: #35a75c;
}

body[data-theme="mono"] {
  --bg: #080808;
  --bg-glow: #262626;
  --panel: #151515;
  --panel-2: #242424;
  --text: #fafafa;
  --muted: #a8a8a8;
  --accent: #ffffff;
  --accent-ink: #080808;
  --border: #464646;
  --field-border: #858585;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, "Segoe UI", system-ui, -apple-system, sans-serif;
}

body {
  min-height: 100vh;
  min-height: 100dvh;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% -20%, var(--bg-glow), transparent 52%),
    var(--bg);
}

body.is-playing {
  overscroll-behavior: none;
}

button,
input,
select {
  font: inherit;
}

button {
  -webkit-tap-highlight-color: transparent;
}

button:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 70%, white);
  outline-offset: 2px;
}

.app {
  width: min(100%, 760px);
  height: 100vh;
  height: 100dvh;
  margin: 0 auto;
  padding:
    max(10px, var(--safe-top))
    max(12px, var(--safe-right))
    max(10px, var(--safe-bottom))
    max(12px, var(--safe-left));
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.title {
  flex: 0 0 auto;
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.title h1 {
  margin: 0;
  color: var(--accent);
  font-size: clamp(21px, 3vw, 29px);
  font-weight: 900;
  letter-spacing: 0.22em;
  line-height: 1;
  text-shadow: 0 0 28px color-mix(in srgb, var(--accent) 30%, transparent);
}

.session-label {
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
  font-variant-numeric: tabular-nums;
}

.game {
  flex: 1 1 auto;
  min-height: 0;
  display: grid;
  grid-template-columns: 126px minmax(200px, 300px) 126px;
  grid-template-rows: 104px minmax(0, 1fr) auto;
  grid-template-areas:
    "hold stage next"
    "stats stage next"
    "pause stage desktop";
  justify-content: center;
  align-items: stretch;
  gap: 12px;
}

.box {
  min-width: 0;
  background: color-mix(in srgb, var(--panel) 92%, transparent);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 9px;
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.025);
}

.box h2 {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.18em;
}

.hold-box {
  grid-area: hold;
}

.next-box {
  grid-area: next;
  min-height: 0;
}

.preview canvas {
  display: block;
  width: 100%;
  background: #020204;
  border-radius: 5px;
}

#hold {
  height: 68px;
}

#next {
  height: calc(100% - 20px);
  min-height: 180px;
}

.stage {
  grid-area: stage;
  min-width: 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 7px;
}

.field-shell {
  position: relative;
  height: 100%;
  width: auto;
  max-width: 100%;
  max-height: 600px;
  aspect-ratio: 1 / 2;
  min-height: 0;
  filter: drop-shadow(0 18px 30px rgba(0, 0, 0, 0.35));
}

#field {
  display: block;
  width: 100%;
  height: 100%;
  background: #000;
  border: 2px solid var(--field-border);
  border-radius: 7px;
  touch-action: none;
  -webkit-touch-callout: none;
  user-select: none;
}

.stats {
  grid-area: stats;
  align-self: start;
}

.stat {
  min-width: 0;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px;
  padding: 5px 1px;
  border-bottom: 1px solid var(--border);
}

.stat:last-child {
  border-bottom: 0;
}

.stat span {
  color: var(--muted);
  font-size: 9px;
  font-weight: 750;
  letter-spacing: 0.1em;
}

.stat b {
  min-width: 0;
  overflow: hidden;
  font-size: 14px;
  font-variant-numeric: tabular-nums;
  text-overflow: ellipsis;
}

.pause-control {
  grid-area: pause;
  align-self: end;
  justify-self: start;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  visibility: hidden;
  color: var(--text);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 50%;
  cursor: pointer;
  touch-action: manipulation;
}

body.game-active .pause-control {
  visibility: visible;
}

.pause-control span {
  width: 4px;
  height: 17px;
  background: currentColor;
  border-radius: 2px;
}

.pause-control:active {
  color: var(--accent-ink);
  background: var(--accent);
}

.desktop-hint,
.gesture-hint {
  margin: 0;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.45;
  text-align: center;
}

.desktop-hint {
  grid-area: desktop;
  align-self: end;
}

.gesture-hint {
  display: none;
  flex: 0 0 auto;
}

.callout {
  position: absolute;
  z-index: 2;
  top: 40%;
  left: 50%;
  width: 90%;
  transform: translate(-50%, -50%) scale(0.92);
  display: flex;
  flex-direction: column;
  align-items: center;
  pointer-events: none;
  opacity: 0;
  text-align: center;
  text-shadow: 0 3px 12px #000, 0 0 24px #000;
}

.callout strong {
  color: #fff;
  font-size: clamp(21px, 6vw, 36px);
  font-weight: 950;
  letter-spacing: 0.08em;
}

.callout span {
  color: var(--accent);
  font-size: clamp(10px, 2.5vw, 14px);
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.callout.show {
  animation: callout 950ms cubic-bezier(0.2, 0.85, 0.25, 1) both;
}

@keyframes callout {
  0% { opacity: 0; transform: translate(-50%, -35%) scale(0.78); }
  18%, 68% { opacity: 1; transform: translate(-50%, -50%) scale(1); }
  100% { opacity: 0; transform: translate(-50%, -65%) scale(1.04); }
}

.overlay {
  position: fixed;
  z-index: 20;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  overflow-y: auto;
  padding:
    max(16px, var(--safe-top))
    max(14px, var(--safe-right))
    max(16px, var(--safe-bottom))
    max(14px, var(--safe-left));
  background: rgba(3, 5, 10, 0.84);
  backdrop-filter: blur(8px);
}

.overlay.show {
  display: flex;
}

.overlay-card {
  width: min(100%, 460px);
  max-height: calc(100dvh - max(32px, var(--safe-top)) - max(32px, var(--safe-bottom)));
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: clamp(20px, 5vw, 30px);
  background: color-mix(in srgb, var(--panel) 96%, transparent);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: 0 26px 80px rgba(0, 0, 0, 0.56);
  text-align: center;
  -webkit-user-select: text;
  user-select: text;
}

.overlay-card h2 {
  margin: 0 0 8px;
  color: var(--text);
  font-size: clamp(23px, 6vw, 32px);
  font-weight: 900;
  letter-spacing: 0.1em;
}

.overlay-card h3 {
  margin: 18px 0 8px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.13em;
}

.overlay-card p {
  margin: 7px 0;
  color: var(--muted);
  line-height: 1.45;
}

.overlay-card .big {
  margin: 8px 0;
  color: var(--accent);
  font-size: clamp(34px, 10vw, 52px);
  font-weight: 950;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.03em;
}

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

.menu {
  display: grid;
  gap: 7px;
  margin: 16px 0 10px;
}

.menu-button,
.mode-card,
.primary,
.secondary,
.tab-button {
  min-height: 46px;
  border-radius: 10px;
  font-weight: 800;
  cursor: pointer;
  touch-action: manipulation;
}

.menu-button {
  width: 100%;
  padding: 10px 14px;
  color: var(--text);
  background: transparent;
  border: 1px solid transparent;
  font-size: 17px;
  text-align: left;
}

.menu-button:hover,
.menu-button.sel {
  color: var(--accent-ink);
  background: var(--accent);
}

.mode-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 9px;
  margin: 16px 0;
}

.mode-card {
  min-height: 104px;
  padding: 13px;
  color: var(--text);
  background: var(--panel-2);
  border: 1px solid var(--border);
  text-align: left;
}

.mode-card:hover,
.mode-card:focus-visible {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.mode-card strong,
.mode-card span {
  display: block;
}

.mode-card strong {
  margin-bottom: 5px;
  color: var(--accent);
  font-size: 16px;
  letter-spacing: 0.08em;
}

.mode-card span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 550;
  line-height: 1.35;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 14px;
}

.primary,
.secondary {
  padding: 10px 20px;
  font-size: 15px;
}

.primary {
  color: var(--accent-ink);
  background: var(--accent);
  border: 1px solid var(--accent);
}

.secondary {
  color: var(--text);
  background: transparent;
  border: 1px solid var(--border);
}

.secondary.danger {
  color: var(--danger);
}

.primary:active,
.secondary:active,
.menu-button:active,
.mode-card:active {
  transform: translateY(1px);
}

.gesture-guide {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin: 16px 0;
}

.gesture-guide div {
  min-height: 88px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 10px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 11px;
}

.gesture-guide strong {
  color: var(--accent);
  font-size: 22px;
}

.gesture-guide span {
  color: var(--muted);
  font-size: 12px;
}

.setting-list {
  display: grid;
  gap: 7px;
  margin: 14px 0;
}

.setting-row {
  min-height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 7px 8px 7px 12px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 14px;
}

.setting-row.sel {
  background: var(--panel-2);
  border-color: var(--accent);
}

.setting-row .controls {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 5px;
}

.setting-row .controls b {
  min-width: 70px;
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  text-align: center;
}

.setting-row .controls button {
  width: 42px;
  height: 42px;
  color: var(--text);
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 19px;
  font-weight: 850;
  cursor: pointer;
}

.setting-row .controls button:active {
  color: var(--accent-ink);
  background: var(--accent);
}

.tabs {
  display: flex;
  gap: 5px;
  overflow-x: auto;
  margin: 13px 0;
  padding: 2px;
}

.tab-button {
  flex: 1 0 auto;
  min-height: 40px;
  padding: 8px 10px;
  color: var(--muted);
  background: transparent;
  border: 1px solid var(--border);
  font-size: 11px;
  letter-spacing: 0.05em;
}

.tab-button.active {
  color: var(--accent-ink);
  background: var(--accent);
  border-color: var(--accent);
}

.score-list {
  margin: 10px 0;
  padding: 0;
  list-style: none;
  text-align: left;
  font-variant-numeric: tabular-nums;
}

.score-list li {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr) auto;
  gap: 7px;
  padding: 7px 4px;
  border-bottom: 1px solid var(--border);
}

.score-list .rank,
.score-list small {
  color: var(--muted);
}

.stat-grid,
.result-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 7px;
  margin: 14px 0;
}

.stat2,
.result-stat {
  min-width: 0;
  padding: 9px;
  background: var(--panel-2);
  border-radius: 9px;
}

.stat2 span,
.stat2 b,
.result-stat span,
.result-stat b {
  display: block;
}

.stat2 span,
.result-stat span {
  margin-bottom: 3px;
  color: var(--muted);
  font-size: 10px;
  letter-spacing: 0.06em;
}

.stat2 b,
.result-stat b {
  overflow: hidden;
  font-size: 16px;
  font-variant-numeric: tabular-nums;
  text-overflow: ellipsis;
}

.record-banner {
  margin: 10px 0;
  padding: 8px 12px;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 45%, transparent);
  border-radius: 9px;
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.1em;
}

.overlay-card input {
  width: 100%;
  min-height: 48px;
  margin-top: 9px;
  padding: 10px 12px;
  color: var(--text);
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 9px;
  font-size: 16px;
  text-align: center;
}

code {
  padding: 2px 5px;
  background: var(--panel-2);
  border-radius: 4px;
}

body[data-high-contrast="true"] {
  --muted: #d1d8e0;
  --border: #8292a6;
  --field-border: #fff;
}

body[data-high-contrast="true"] .box,
body[data-high-contrast="true"] .overlay-card {
  border-width: 2px;
}

.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;
}

@media (any-pointer: coarse) {
  .desktop-hint {
    display: none;
  }

  .gesture-hint {
    display: block;
  }
}

@media (max-width: 640px) {
  .app {
    padding:
      max(6px, var(--safe-top))
      max(7px, var(--safe-right))
      max(6px, var(--safe-bottom))
      max(7px, var(--safe-left));
  }

  .title {
    min-height: 32px;
    margin-bottom: 5px;
  }

  .title h1 {
    font-size: 19px;
  }

  .session-label {
    padding: 4px 8px;
    font-size: 9px;
  }

  .game {
    width: 100%;
    grid-template-columns: 58px minmax(92px, 1fr) 82px 42px;
    grid-template-rows: 58px minmax(0, 1fr) auto;
    grid-template-areas:
      "hold stats next pause"
      "stage stage stage stage"
      "desktop desktop desktop desktop";
    gap: 5px;
  }

  .box {
    padding: 4px;
    border-radius: 7px;
  }

  .box h2 {
    margin-bottom: 2px;
    font-size: 7px;
  }

  #hold,
  #next {
    width: 100%;
    height: 40px;
    min-height: 0;
  }

  .stats {
    height: 58px;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 5px;
    padding: 3px 5px;
  }

  .stat {
    display: block;
    padding: 1px 0;
    border: 0;
    line-height: 1.05;
  }

  .stat span,
  .stat b {
    display: block;
  }

  .stat span {
    font-size: 6px;
  }

  .stat b {
    font-size: 10px;
  }

  .optional-stat {
    display: none;
  }

  .pause-control {
    align-self: center;
    justify-self: center;
    width: 42px;
    height: 42px;
  }

  .stage {
    gap: 3px;
  }

  .field-shell {
    max-height: none;
  }

  .gesture-hint {
    max-width: 310px;
    overflow: hidden;
    font-size: 8px;
    line-height: 1.2;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
}

@media (max-width: 360px) {
  .game {
    grid-template-columns: 52px minmax(84px, 1fr) 74px 40px;
  }

  .title h1 {
    letter-spacing: 0.16em;
  }
}

@media (max-height: 560px) and (orientation: landscape) {
  .app {
    width: min(100%, 600px);
    padding:
      max(4px, var(--safe-top))
      max(6px, var(--safe-right))
      max(4px, var(--safe-bottom))
      max(6px, var(--safe-left));
  }

  .title {
    display: none;
  }

  .game {
    flex: 1 1 auto;
    height: 100%;
    grid-template-columns: 76px minmax(150px, 1fr) 118px;
    grid-template-rows: 110px 110px minmax(0, 1fr);
    grid-template-areas:
      "hold stage stats"
      "next stage stats"
      "pause stage desktop";
    gap: 5px;
  }

  .stage {
    height: 100%;
    gap: 0;
    overflow: hidden;
  }

  .field-shell {
    flex: 0 0 auto;
    width: auto;
    height: 100%;
    max-width: 100%;
    max-height: none;
  }

  .hold-box,
  .next-box {
    align-self: stretch;
    min-height: 0;
    overflow: hidden;
  }

  #hold,
  #next {
    height: calc(100% - 13px);
    min-height: 32px;
  }

  .stats {
    height: auto;
    display: block;
    align-self: stretch;
  }

  .stat {
    display: flex;
    padding: 3px 0;
    border-bottom: 1px solid var(--border);
  }

  .stat span {
    font-size: 7px;
  }

  .stat b {
    font-size: 11px;
  }

  .optional-stat {
    display: flex;
  }

  .pause-control {
    align-self: center;
  }

  .gesture-hint {
    display: none;
  }
}

@media (max-width: 390px), (max-height: 540px) {
  .overlay {
    align-items: flex-start;
  }

  .overlay-card {
    border-radius: 13px;
    padding: 18px 14px;
  }

  .setting-row {
    padding-left: 9px;
    font-size: 12px;
  }

  .setting-row .controls b {
    min-width: 58px;
    font-size: 11px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
  }
}

body[data-reduced-motion="true"] *,
body[data-reduced-motion="true"] *::before,
body[data-reduced-motion="true"] *::after {
  animation-duration: 0.01ms !important;
  animation-iteration-count: 1 !important;
  transition-duration: 0.01ms !important;
}