:root {
  color-scheme: light;
  --bg: #f3f4f6;
  --panel: #ffffff;
  --soft: #f8f9fb;
  --ink: #111318;
  --muted: #626a76;
  --line: #cfd5de;
  --yellow: #ffd300;
  --green: #1fbf75;
  --blue: #22a7f0;
  --red: #e84242;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--ink);
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  background: var(--bg);
}

button,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

a {
  color: inherit;
  text-decoration: none;
}

svg {
  display: block;
}

.arcade-shell {
  width: min(100% - 24px, 1440px);
  margin: 0 auto;
  padding: 12px 0;
}

.arcade-topbar,
.game-picker,
.game-stage,
.config-panel {
  border: 1px solid var(--line);
  border-radius: 0;
  background: var(--panel);
}

.arcade-topbar {
  min-height: 54px;
  display: flex;
  align-items: center;
  padding: 8px 10px;
}

.arcade-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.brand-mark {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border: 1px solid #d3af00;
  background: var(--yellow);
  font-size: 16px;
  font-weight: 900;
}

.arcade-brand strong,
.arcade-brand small {
  display: block;
  line-height: 1.1;
}

.arcade-brand strong {
  font-size: 15px;
  font-weight: 850;
}

.arcade-brand small,
.section-label,
.mobile-picker span,
.config-head span,
.mock-device span {
  color: var(--muted);
  font-size: 10px;
  font-weight: 850;
  letter-spacing: 0;
  text-transform: uppercase;
}

.arcade-brand small {
  margin-top: 2px;
}

.harness {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr) 390px;
  gap: 12px;
  align-items: stretch;
  margin-top: 12px;
}

.game-picker {
  position: sticky;
  top: 12px;
  overflow: hidden;
}

.mobile-picker {
  display: none;
}

.game-list {
  display: grid;
}

.game-button {
  min-height: 42px;
  padding: 0 12px;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: #ffffff;
  color: var(--ink);
  font-size: 13px;
  font-weight: 780;
  text-align: left;
}

.game-button:last-child {
  border-bottom: 0;
}

.game-button:hover,
.game-button:focus-visible {
  background: var(--soft);
}

.game-button.is-active {
  background: #fff8c7;
  box-shadow: inset 4px 0 0 var(--yellow);
}

.game-stage {
  min-width: 0;
}

.config-head {
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
}

.config-head h2 {
  margin: 2px 0 0;
  color: var(--ink);
  line-height: 1.1;
  letter-spacing: 0;
}

.config-head h2 {
  font-size: 16px;
}

.config-head span {
  min-height: 22px;
  display: grid;
  place-items: center;
  padding: 0 7px;
  border: 1px solid var(--line);
  background: var(--soft);
}

.config-head span.is-ok {
  border-color: color-mix(in srgb, var(--green) 55%, var(--line));
  color: #0d7447;
}

.config-head span.is-error {
  border-color: color-mix(in srgb, var(--red) 60%, var(--line));
  color: #b82929;
}

.demo-stage {
  padding: 12px;
}

.config-panel {
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.config-panel textarea {
  width: 100%;
  min-height: 0;
  flex: 1 1 auto;
  display: block;
  resize: none;
  padding: 12px;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: #101114;
  color: #f5f6f8;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 12px;
  line-height: 1.55;
  outline: none;
  overflow: auto;
}

.config-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.config-actions button {
  min-height: 40px;
  border: 0;
  border-right: 1px solid var(--line);
  background: #ffffff;
  color: var(--ink);
  font-size: 13px;
  font-weight: 800;
}

.config-actions button:last-child {
  border-right: 0;
}

.config-actions button:first-child {
  background: var(--yellow);
}

.concept-stage {
  border: 1px solid var(--line);
  background: #ffffff;
}

.mock-game {
  min-height: 520px;
  display: grid;
  grid-template-rows: minmax(260px, 1fr) auto;
}

.mock-scene {
  display: grid;
  place-items: center;
  padding: 24px;
  border-bottom: 1px solid var(--line);
  background: var(--soft);
}

.mock-device {
  position: relative;
  width: min(100%, 360px);
  min-height: 220px;
  padding: 16px;
  border: 1px solid var(--line);
  background: #ffffff;
}

.mock-device strong {
  display: block;
  margin-top: 8px;
  color: var(--ink);
  font-size: 34px;
  line-height: 1;
}

.mock-art {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 16px;
  height: 70px;
  border: 1px solid var(--line);
}

.mock-runner .mock-art::before,
.mock-runner .mock-art::after,
.mock-drop .mock-art::before,
.mock-drop .mock-art::after,
.mock-scratch .mock-art::before,
.mock-ladder .mock-art::before,
.mock-tiles .mock-art::before {
  content: "";
  position: absolute;
}

.mock-runner .mock-art::before {
  left: 18px;
  right: 18px;
  bottom: 14px;
  height: 8px;
  background: var(--ink);
}

.mock-runner .mock-art::after {
  left: 34px;
  bottom: 30px;
  width: 22px;
  height: 22px;
  background: var(--blue);
  box-shadow: 204px 0 0 var(--yellow);
}

.mock-drop .mock-art::before {
  inset: 12px 42px 22px;
  background:
    radial-gradient(circle at 50% 12%, var(--ink) 0 5px, transparent 6px),
    radial-gradient(circle at 30% 45%, var(--ink) 0 4px, transparent 5px),
    radial-gradient(circle at 70% 45%, var(--ink) 0 4px, transparent 5px);
}

.mock-drop .mock-art::after {
  left: 22px;
  right: 22px;
  bottom: 12px;
  height: 12px;
  background: var(--green);
}

.mock-scratch .mock-art::before {
  inset: 12px;
  background: repeating-linear-gradient(
    90deg,
    #ffffff 0 38px,
    var(--line) 38px 40px,
    transparent 40px 48px
  );
}

.mock-ladder .mock-art::before {
  left: 18px;
  right: 18px;
  bottom: 12px;
  height: 48px;
  background: linear-gradient(
    90deg,
    transparent 0 5%,
    var(--line) 5% 6%,
    transparent 6% 24%,
    var(--line) 24% 25%,
    transparent 25% 43%,
    var(--line) 43% 44%,
    transparent 44% 62%,
    var(--line) 62% 63%,
    transparent 63% 81%,
    var(--line) 81% 82%,
    transparent 82% 100%
  );
  border-bottom: 10px solid var(--green);
}

.mock-tiles .mock-art::before {
  inset: 12px;
  background:
    linear-gradient(var(--line), var(--line)) 0 50% / 100% 1px,
    linear-gradient(90deg, var(--line), var(--line)) 33% 0 / 1px 100%,
    linear-gradient(90deg, var(--line), var(--line)) 66% 0 / 1px 100%;
  background-repeat: no-repeat;
}

.mock-data {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 0;
}

.mock-data span {
  min-height: 48px;
  display: grid;
  align-content: center;
  gap: 4px;
  padding: 9px 10px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  font-size: 13px;
  font-weight: 720;
}

.mock-data span:nth-child(even) {
  border-right: 0;
}

.mock-data b {
  color: var(--muted);
  font-size: 10px;
  font-weight: 850;
  text-transform: uppercase;
}

.game-stage .ebrw-shell {
  border-color: var(--line);
  border-radius: 0;
  box-shadow: none;
}

.game-stage .ebrw-logo,
.game-stage .ebrw-pointer::before,
.game-stage .ebrw-sound,
.game-stage .ebrw-button,
.game-stage .ebrw-stat,
.game-stage .ebrw-status,
.game-stage .ebrw-micro-item {
  border-radius: 0;
}

.game-stage .ebrw-board {
  padding: 12px;
}

.game-stage .ebrw-wheel-area {
  min-height: 302px;
}

.game-stage .ebrw-wheel-frame {
  width: min(100%, 326px);
}

button:focus-visible,
select:focus-visible,
textarea:focus-visible,
a:focus-visible {
  outline: 2px solid rgba(17, 19, 24, 0.55);
  outline-offset: 2px;
}

@media (max-width: 960px) {
  .arcade-shell {
    width: min(100% - 16px, 720px);
    padding-top: 8px;
  }

  .harness {
    grid-template-columns: 1fr;
    gap: 8px;
    margin-top: 8px;
  }

  .game-picker {
    position: static;
    padding: 10px;
  }

  .mobile-picker {
    display: grid;
    gap: 5px;
  }

  .mobile-picker select {
    width: 100%;
    min-height: 40px;
    padding: 0 10px;
    border: 1px solid var(--line);
    border-radius: 0;
    background: #ffffff;
    color: var(--ink);
    font-weight: 780;
  }

  .game-list,
  .config-panel {
    display: none;
  }

  .demo-stage {
    padding: 10px;
  }

  .mock-game {
    min-height: 420px;
  }

  .mock-data {
    grid-template-columns: 1fr;
  }

  .mock-data span {
    border-right: 0;
  }
}

@media (max-width: 600px) {
  .arcade-shell {
    width: 100%;
    padding: 2px;
  }

  .arcade-topbar {
    min-height: 34px;
    padding: 3px 6px;
  }

  .arcade-brand {
    gap: 8px;
  }

  .brand-mark {
    width: 24px;
    height: 24px;
    font-size: 13px;
  }

  .arcade-brand strong {
    font-size: 13px;
  }

  .harness {
    gap: 4px;
    margin-top: 4px;
  }

  .game-picker {
    padding: 3px 4px;
  }

  .mobile-picker {
    gap: 3px;
  }

  .mobile-picker span {
    font-size: 8px;
  }

  .mobile-picker select {
    min-height: 28px;
    padding: 0 6px;
    font-size: 13px;
  }

  .demo-stage {
    padding: 4px;
  }
}

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