:root {
  color-scheme: dark;
  font-family: "Trebuchet MS", "Segoe UI", Arial, Helvetica, sans-serif;
  --cabinet-warm: #f0eee9;
  --cabinet-paper: #d8c7a2;
  --cabinet-aged: #a87946;
  --cabinet-ink: #2a251f;
  --cabinet-ink-soft: rgba(42, 37, 31, 0.68);
  --crt-screen: #050403;
  --crt-screen-soft: #0b0d0a;
  --display-amber: #ffcc66;
  --display-amber-dim: rgba(255, 204, 102, 0.68);
  --danger-red: #e44b36;
  --piece-cyan: #55d9e6;
  --piece-yellow: #f3d75d;
  --piece-purple: #9465c9;
  --piece-green: #4fbf74;
  --piece-red: #d84a38;
  --piece-blue: #4d70c9;
  --piece-orange: #d88739;
  --header-clearance: clamp(8.25rem, 16dvh, 10rem);
  --controls-clearance: clamp(6.5rem, 15dvh, 8.5rem);
  --game-vertical-chrome: calc(var(--header-clearance) + var(--controls-clearance));
  --playfield-width: min(60vw, 300px, calc((100dvh - var(--game-vertical-chrome)) / 2));
  background: #17120d;
  color: var(--cabinet-warm);
}

* {
  box-sizing: border-box;
}

html {
  width: 100%;
  height: 100%;
  overflow: hidden;
  overscroll-behavior: none;
}

body {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100dvh;
  min-height: 100dvh;
  margin: 0;
  display: grid;
  place-items: center;
  overflow: hidden;
  overscroll-behavior: none;
  background:
    radial-gradient(circle at 18% 8%, rgba(255, 204, 102, 0.16), transparent 26rem),
    radial-gradient(circle at 86% 18%, rgba(216, 74, 56, 0.12), transparent 30rem),
    linear-gradient(135deg, #21170f, #0c0907 72%);
}

button,
input {
  font: inherit;
}

button {
  min-height: 2.65rem;
  border: 3px solid #27170f;
  border-radius: 6px;
  padding: 0.72rem 0.95rem;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.24), transparent 42%),
    linear-gradient(180deg, #d8a82f, #9d6421);
  color: #160d08;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
  box-shadow:
    inset 3px 3px rgba(255, 255, 255, 0.22),
    inset -4px -5px rgba(0, 0, 0, 0.28),
    0 4px 0 rgba(0, 0, 0, 0.28);
}

button:hover:not(:disabled) {
  filter: brightness(1.08);
}

button:active:not(:disabled) {
  transform: translateY(2px);
  box-shadow:
    inset 2px 2px rgba(255, 255, 255, 0.16),
    inset -3px -4px rgba(0, 0, 0, 0.3),
    0 2px 0 rgba(0, 0, 0, 0.3);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.52;
  filter: grayscale(0.5);
}

input {
  width: 100%;
  min-height: 2.55rem;
  border: 2px solid rgba(255, 204, 102, 0.36);
  border-radius: 4px;
  padding: 0.62rem 0.72rem;
  background: #080604;
  color: var(--display-amber);
  outline: none;
  font-family: "Courier New", monospace;
  font-weight: 900;
  box-shadow: inset 0 0 16px rgba(0, 0, 0, 0.76);
}

input:focus {
  border-color: var(--display-amber);
  box-shadow:
    inset 0 0 16px rgba(0, 0, 0, 0.76),
    0 0 0 3px rgba(255, 204, 102, 0.22);
}

button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--display-amber);
  outline-offset: 3px;
}

.app-shell {
  position: relative;
  width: min(100%, 1080px);
  height: 100dvh;
  max-height: 100dvh;
  display: grid;
  padding: clamp(0.35rem, 1.5vw, 1rem);
  isolation: isolate;
}

.app-shell::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.045), transparent 16%, transparent 84%, rgba(0, 0, 0, 0.2)),
    repeating-linear-gradient(0deg, rgba(255, 204, 102, 0.035) 0 1px, transparent 1px 7px);
  opacity: 0.6;
}

.cabinet-shell {
  position: relative;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  gap: clamp(0.55rem, 1.2vw, 0.85rem);
  height: 100%;
  min-height: 0;
  padding: clamp(0.6rem, 1.6vw, 1rem);
  border: 4px solid #17100b;
  border-radius: 8px;
  overflow: hidden;
  overflow: clip;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.14), transparent 20%, transparent 78%, rgba(0, 0, 0, 0.2)),
    linear-gradient(180deg, var(--cabinet-warm), #cfb681 60%, #92703e);
  box-shadow:
    inset 0 0 0 4px rgba(42, 37, 31, 0.28),
    0 30px 80px rgba(0, 0, 0, 0.48);
}

.cabinet-marquee {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  justify-items: center;
  gap: 0.75rem;
  padding: 0.55rem 0.85rem;
  border: 3px solid var(--cabinet-ink);
  border-radius: 6px;
  background:
    linear-gradient(90deg, #18100b, #3a2418 48%, #18100b),
    #23150e;
  color: var(--display-amber);
  text-align: center;
  text-transform: uppercase;
  text-shadow: 0 0 10px rgba(255, 204, 102, 0.62);
  box-shadow: inset 0 0 24px rgba(0, 0, 0, 0.66);
}

.cabinet-marquee h1,
.cabinet-marquee p,
.side-panel h2,
.screen p,
.stat-tile {
  margin: 0;
}

.cabinet-marquee h1 {
  font-family: "Arial Black", Impact, sans-serif;
  font-size: clamp(1.85rem, 5vw, 3.4rem);
  line-height: 0.95;
  letter-spacing: 0;
}

.status {
  margin-top: 0.18rem;
  color: rgba(255, 204, 102, 0.82);
  font-family: "Courier New", monospace;
  font-size: 0.82rem;
  font-weight: 900;
}

.marquee-lamp {
  width: 1rem;
  height: 1rem;
  border-radius: 999px;
  background: var(--danger-red);
  box-shadow: 0 0 14px var(--danger-red);
  animation: marquee-pulse 1.6s ease-in-out infinite;
}

.marquee-lamp:last-child {
  animation-delay: 0.45s;
}

.play-layout {
  display: grid;
  grid-template-columns: minmax(280px, 340px) minmax(210px, 260px);
  gap: clamp(1rem, 2.6vw, 1.5rem);
  justify-content: center;
  align-items: start;
  align-content: start;
  height: 100%;
  max-height: 100%;
  min-height: 0;
  overflow: hidden;
  overflow: clip;
}

.play-stage {
  position: relative;
  display: grid;
  align-items: start;
  height: 100%;
  max-height: 100%;
  min-height: 0;
  overflow: hidden;
  overflow: clip;
}

.crt-bezel {
  justify-self: end;
  align-self: center;
  display: grid;
  place-items: center;
  max-height: 100%;
  padding: clamp(0.75rem, 2vw, 1rem);
  border: 4px solid #201711;
  border-radius: 8px;
  background:
    radial-gradient(circle at 50% 44%, #1a1712, #080706 76%),
    #070605;
  box-shadow:
    inset 0 0 0 6px rgba(255, 255, 255, 0.04),
    inset 0 0 42px rgba(0, 0, 0, 0.9),
    0 10px 24px rgba(0, 0, 0, 0.32);
}

.board-area {
  box-sizing: content-box;
  position: relative;
  width: var(--playfield-width);
  max-width: 100%;
  aspect-ratio: 1 / 2;
  overflow: hidden;
  border: 1px solid rgba(255, 204, 102, 0.3);
  border-radius: 6px;
  background: var(--crt-screen);
  box-shadow:
    0 0 22px rgba(85, 217, 230, 0.14),
    inset 0 0 28px rgba(85, 217, 230, 0.1),
    inset 0 0 50px rgba(0, 0, 0, 0.78);
  touch-action: none;
}

.board-area::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background: repeating-linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.075) 0 1px,
    transparent 1px 4px
  );
  mix-blend-mode: screen;
  opacity: 0.38;
  animation: crt-flicker 4.5s linear infinite;
}

.board-area::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  background:
    radial-gradient(circle at 50% 42%, transparent 30%, rgba(0, 0, 0, 0.44) 78%),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08), transparent 18%, transparent 82%, rgba(255, 255, 255, 0.05));
}

#game-board,
#next-piece {
  display: block;
}

#game-board {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  background: var(--crt-screen);
  touch-action: none;
}

.side-panel {
  width: min(100%, 260px);
  display: grid;
  gap: 0.75rem;
  max-height: 100%;
  overflow: hidden;
  overflow: clip;
}

.arcade-display {
  border: 2px solid #281a11;
  border-radius: 6px;
  background: #15100c;
  color: var(--display-amber);
  box-shadow: inset 0 0 18px rgba(0, 0, 0, 0.72);
}

.scoreboard {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem;
  padding: 0.75rem;
}

.stat-tile {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.6rem;
  align-items: baseline;
  color: var(--display-amber-dim);
  font-family: "Courier New", monospace;
  font-size: 0.75rem;
  font-weight: 900;
  text-transform: uppercase;
}

.scoreboard span {
  justify-self: end;
  color: var(--display-amber);
  font-size: 1.24rem;
  text-shadow: 0 0 9px rgba(255, 204, 102, 0.55);
}

.preview-panel,
.screen {
  display: grid;
  gap: 0.75rem;
  padding: 0.85rem;
}

.preview-panel {
  justify-items: start;
}

.side-panel h2 {
  color: var(--display-amber);
  font-family: "Arial Black", Impact, sans-serif;
  font-size: 0.98rem;
  letter-spacing: 0;
  text-transform: uppercase;
  text-shadow: 0 0 8px rgba(255, 204, 102, 0.42);
}

#next-piece {
  width: 120px;
  height: 120px;
  border: 1px solid rgba(255, 204, 102, 0.34);
  border-radius: 4px;
  background: var(--crt-screen);
  box-shadow: inset 0 0 18px rgba(0, 0, 0, 0.76);
}

label {
  color: var(--display-amber-dim);
  font-family: "Courier New", monospace;
  font-size: 0.75rem;
  font-weight: 900;
  text-transform: uppercase;
}

.start-overlay {
  position: absolute;
  inset: 0;
  z-index: 20;
  width: min(100%, 640px);
  min-height: 100%;
  margin: 0 auto;
  align-content: center;
  justify-items: center;
  gap: clamp(0.85rem, 2.2vw, 1.2rem);
  padding: clamp(1rem, 3vw, 2rem);
  border-width: 3px;
  text-align: center;
  background:
    radial-gradient(circle at 50% 35%, rgba(255, 204, 102, 0.14), transparent 13rem),
    repeating-linear-gradient(180deg, rgba(255, 204, 102, 0.045) 0 1px, transparent 1px 5px),
    linear-gradient(180deg, #1b130d, #080604 72%);
  box-shadow:
    inset 0 0 32px rgba(0, 0, 0, 0.82),
    0 12px 30px rgba(0, 0, 0, 0.38);
}

.start-overlay h2 {
  margin: 0;
  color: var(--display-amber);
  font-family: "Arial Black", Impact, sans-serif;
  font-size: clamp(1.5rem, 5vw, 2.35rem);
  letter-spacing: 0;
  text-transform: uppercase;
  text-shadow: 0 0 12px rgba(255, 204, 102, 0.55);
}

.difficulty-control {
  display: grid;
  gap: 0.45rem;
  width: min(100%, 17rem);
  justify-items: center;
}

.difficulty-stepper {
  display: grid;
  grid-template-columns: 2.75rem minmax(4.5rem, 1fr) 2.75rem;
  gap: 0.55rem;
  width: 100%;
  align-items: center;
}

.difficulty-stepper input {
  text-align: center;
  font-size: 1.35rem;
}

.step-button {
  position: relative;
  min-height: 2.75rem;
  padding: 0;
}

.step-button::before {
  content: "";
  position: absolute;
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%);
  width: 0;
  height: 0;
  border-style: solid;
}

.step-button[data-step-difficulty="-1"]::before {
  border-width: 0.45rem 0.58rem 0.45rem 0;
  border-color: transparent var(--cabinet-ink) transparent transparent;
}

.step-button[data-step-difficulty="1"]::before {
  border-width: 0.45rem 0 0.45rem 0.58rem;
  border-color: transparent transparent transparent var(--cabinet-ink);
}

.settings-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem;
  width: min(100%, 19rem);
}

.settings-toggle {
  min-height: 2.85rem;
  padding-inline: 0.6rem;
}

.settings-toggle[aria-pressed='false'] {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.16), transparent 42%),
    linear-gradient(180deg, #5d5145, #2b241e);
  color: rgba(240, 238, 233, 0.76);
}

.start-action {
  width: min(100%, 15rem);
  font-size: 1rem;
}

.hidden {
  display: none !important;
}

.error {
  margin: 0;
  color: #ff917d;
  font-family: "Courier New", monospace;
  font-size: 0.85rem;
  font-weight: 900;
}

.highscore-list {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--display-amber);
  font-family: "Courier New", monospace;
  font-weight: 900;
}

.highscore-list li {
  margin-top: 0.35rem;
}

.cabinet-controls {
  pointer-events: none;
}

.gameboy-controls {
  position: absolute;
  inset-inline: 0;
  bottom: clamp(0.45rem, 1.1dvh, 0.85rem);
  z-index: 40;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 1rem;
  padding: 0 clamp(2.1rem, 4vw, 3.4rem) clamp(0.2rem, 0.9dvh, 0.55rem);
  border: 0;
  background: transparent;
  transform: none;
  pointer-events: none;
}

.gameboy-controls button {
  touch-action: none;
  pointer-events: auto;
  user-select: none;
}

.dpad {
  width: clamp(5.7rem, 12dvh, 7.4rem);
  aspect-ratio: 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  pointer-events: auto;
  filter: drop-shadow(0 0.38rem 0 rgba(0, 0, 0, 0.36));
}

.dpad-button,
.dpad-cap,
.dpad-center {
  min-width: 0;
  min-height: 0;
  border: 2px solid #050505;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.16), transparent 34%),
    linear-gradient(180deg, #292929, #090909);
  box-shadow:
    inset 0.18rem 0.18rem rgba(255, 255, 255, 0.12),
    inset -0.2rem -0.22rem rgba(0, 0, 0, 0.6);
}

.dpad-button {
  padding: 0;
  border-radius: 4px;
  color: transparent;
}

.dpad-button:active:not(:disabled) {
  transform: none;
  box-shadow:
    inset 0.08rem 0.08rem rgba(255, 255, 255, 0.08),
    inset 0.18rem 0.2rem rgba(0, 0, 0, 0.64);
}

.dpad-up {
  grid-column: 2;
  grid-row: 1;
  border-radius: 6px 6px 0 0;
}

.dpad-left {
  grid-column: 1;
  grid-row: 2;
  border-radius: 6px 0 0 6px;
}

.dpad-center {
  position: relative;
  grid-column: 2;
  grid-row: 2;
  z-index: 1;
  border-radius: 3px;
}

.dpad-center::after {
  content: "";
  position: absolute;
  inset: 36%;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.5);
}

.dpad-right {
  grid-column: 3;
  grid-row: 2;
  border-radius: 0 6px 6px 0;
}

.dpad-down {
  grid-column: 2;
  grid-row: 3;
  border-radius: 0 0 6px 6px;
}

.face-buttons {
  display: flex;
  align-items: center;
  gap: clamp(0.9rem, 3vw, 1.45rem);
  padding-bottom: clamp(0.25rem, 1vw, 0.65rem);
  transform: rotate(-15deg);
  pointer-events: auto;
  filter: drop-shadow(0 0.34rem 0 rgba(0, 0, 0, 0.32));
}

.face-button {
  position: relative;
  width: clamp(3.2rem, 8.4dvh, 4.25rem);
  min-height: auto;
  aspect-ratio: 1;
  border-radius: 999px;
  padding: 0;
  border-color: #3a2030;
  background:
    radial-gradient(circle at 35% 28%, rgba(255, 255, 255, 0.34), transparent 22%),
    linear-gradient(160deg, #d83b82, #8d1e55 70%);
  color: var(--cabinet-warm);
  font-family: "Arial Black", Impact, sans-serif;
  font-size: 1.3rem;
  box-shadow:
    inset 0.25rem 0.2rem rgba(255, 255, 255, 0.18),
    inset -0.28rem -0.34rem rgba(0, 0, 0, 0.34),
    0 0.28rem 0 #3d2032;
}

.face-button-b {
  margin-top: clamp(0.8rem, 2.2vw, 1.2rem);
}

.face-button-a {
  margin-bottom: clamp(0.8rem, 2.2vw, 1.2rem);
}

.face-button span {
  display: block;
  transform: rotate(15deg);
}

body[data-game-state='paused'] .board-area {
  filter: brightness(0.62) saturate(0.72);
}

body[data-game-state='paused'] .board-area::after {
  background:
    radial-gradient(circle at 50% 42%, rgba(0, 0, 0, 0.18), rgba(0, 0, 0, 0.62) 78%),
    repeating-linear-gradient(90deg, rgba(255, 204, 102, 0.04) 0 1px, transparent 1px 5px);
}

body[data-game-state='lineClearWait'] .crt-bezel {
  box-shadow:
    inset 0 0 0 6px rgba(255, 255, 255, 0.04),
    inset 0 0 42px rgba(0, 0, 0, 0.9),
    0 0 30px rgba(255, 204, 102, 0.28);
}

body[data-game-state='gameOver'] .board-area {
  animation: crt-flicker 0.18s steps(2) 5;
}

body[data-danger='warning'] .crt-bezel {
  box-shadow:
    inset 0 0 0 6px rgba(255, 255, 255, 0.04),
    inset 0 0 42px rgba(0, 0, 0, 0.9),
    0 0 22px rgba(255, 204, 102, 0.22);
}

body[data-danger='danger'] .crt-bezel {
  animation: danger-pulse 0.9s ease-in-out infinite;
}

@keyframes marquee-pulse {
  0%,
  100% {
    opacity: 0.64;
    transform: scale(0.94);
  }

  50% {
    opacity: 1;
    transform: scale(1.06);
  }
}

@keyframes crt-flicker {
  0%,
  100% {
    opacity: 0.34;
    transform: translateY(0);
  }

  50% {
    opacity: 0.46;
    transform: translateY(1px);
  }
}

@keyframes danger-pulse {
  0%,
  100% {
    box-shadow:
      inset 0 0 0 6px rgba(255, 255, 255, 0.04),
      inset 0 0 42px rgba(0, 0, 0, 0.9),
      0 0 20px rgba(216, 74, 56, 0.26);
  }

  50% {
    box-shadow:
      inset 0 0 0 6px rgba(255, 255, 255, 0.05),
      inset 0 0 42px rgba(0, 0, 0, 0.9),
      0 0 36px rgba(216, 74, 56, 0.5);
  }
}

@media (max-width: 760px) {
  :root {
    --header-clearance: clamp(7.4rem, 18dvh, 9.2rem);
    --controls-clearance: clamp(6rem, 16dvh, 8rem);
    --playfield-width: min(100%, 280px, calc((100dvh - var(--game-vertical-chrome)) / 2));
  }

  body {
    place-items: center;
  }

  .app-shell {
    padding: 0.35rem;
  }

  .cabinet-shell {
    padding: 0.55rem;
    border-width: 3px;
  }

  .cabinet-marquee {
    grid-template-columns: 1fr;
    gap: 0;
    padding: 0.42rem 0.55rem;
  }

  .cabinet-marquee h1 {
    font-size: clamp(1.45rem, 8.5vw, 2.1rem);
  }

  .marquee-lamp,
  .marquee-lamp:last-child {
    display: none;
  }

  .play-layout {
    grid-template-columns: 1fr;
    align-content: start;
  }

  .crt-bezel {
    justify-self: center;
    width: min(100%, 316px);
    padding: 0.55rem;
    border-width: 3px;
  }

  .board-area {
    width: var(--playfield-width);
    margin: 0 auto;
  }

  .side-panel {
    width: 100%;
  }

  .scoreboard {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .stat-tile {
    grid-template-columns: 1fr;
    gap: 0.15rem;
  }

  .scoreboard span {
    justify-self: start;
    font-size: 1.05rem;
  }

  .start-overlay {
    inset: 0.15rem;
    padding: 0.85rem;
  }

  .settings-row {
    width: min(100%, 17rem);
  }

  .gameboy-controls {
    padding-inline: 0.85rem;
  }

  .dpad {
    width: clamp(5.2rem, 14dvh, 6.2rem);
  }

  .face-buttons {
    gap: clamp(0.55rem, 3vw, 0.9rem);
  }

  .face-button {
    width: clamp(2.9rem, 9dvh, 3.6rem);
    font-size: 1.08rem;
  }
}

@media (max-width: 430px) {
  .app-shell {
    width: min(100%, 372px);
  }

  .cabinet-shell {
    overflow: hidden;
  }
}

@media (max-height: 720px) {
  :root {
    --header-clearance: clamp(6.75rem, 17dvh, 8.25rem);
    --controls-clearance: clamp(5.6rem, 16dvh, 7rem);
  }

  .gameboy-controls {
    bottom: clamp(0.3rem, 0.9dvh, 0.6rem);
    padding-bottom: clamp(0.15rem, 0.8dvh, 0.4rem);
  }

  .dpad {
    width: clamp(4.9rem, 13dvh, 5.8rem);
  }

  .face-button {
    width: clamp(2.8rem, 8.6dvh, 3.3rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}