:root {
  color-scheme: light dark;
  --color-background: #f5f7fb;
  --color-surface: #ffffff;
  --color-surface-muted: #edf1f7;
  --color-text: #172033;
  --color-muted: #5b6578;
  --color-border: #cbd3df;
  --color-primary: #2457d6;
  --color-primary-strong: #173f9f;
  --color-danger: #a21d2d;
  --color-focus: #f59e0b;
  --shadow-card: 0 12px 30px rgb(23 32 51 / 10%);
  --die-face: #f8fafc;
  --die-border: #94a3b8;
  --die-pip: #111827;
  --die-shadow: rgb(0 0 0 / 30%);
  --radius-small: 0.5rem;
  --radius-medium: 0.85rem;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

:root[data-theme="dark"] {
  --color-background: #101521;
  --color-surface: #1a2232;
  --color-surface-muted: #242e40;
  --color-text: #f5f7fb;
  --color-muted: #b8c0cf;
  --color-border: #435069;
  --color-primary: #7da2ff;
  --color-primary-strong: #a9c0ff;
  --color-danger: #ff8794;
  --shadow-card: 0 12px 30px rgb(0 0 0 / 30%);
}

@media (prefers-color-scheme: dark) {
  :root[data-theme="system"] {
    --color-background: #101521;
    --color-surface: #1a2232;
    --color-surface-muted: #242e40;
    --color-text: #f5f7fb;
    --color-muted: #b8c0cf;
    --color-border: #435069;
    --color-primary: #7da2ff;
    --color-primary-strong: #a9c0ff;
    --color-danger: #ff8794;
    --shadow-card: 0 12px 30px rgb(0 0 0 / 30%);
  }
}

:root[data-theme="colorblind"] {
  --color-background: #101521;
  --color-surface: #1a2232;
  --color-surface-muted: #242e40;
  --color-text: #f5f7fb;
  --color-muted: #b8c0cf;
  --color-border: #435069;
  --color-primary: #56b4e9;
  --color-primary-strong: #8bcdf0;
  --color-danger: #ff9e70;
  --color-focus: #e69f00;
  --shadow-card: 0 12px 30px rgb(0 0 0 / 30%);
}

* {
  box-sizing: border-box;
}

html,
body {
  max-width: 100%;
  margin: 0;
  overflow-x: clip;
}

body {
  min-width: 320px;
  min-height: 100vh;
  background: var(--color-background);
  color: var(--color-text);
  line-height: 1.5;
}

button,
input,
select,
textarea {
  min-height: 44px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  background: var(--color-surface);
  color: var(--color-text);
  font: inherit;
}

button,
select {
  cursor: pointer;
}

button {
  padding: var(--space-2) var(--space-4);
  font-weight: 700;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

input,
select,
textarea {
  width: 100%;
  padding: var(--space-2) var(--space-3);
}

textarea {
  resize: vertical;
}

a {
  color: var(--color-primary);
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: var(--space-2);
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1.1;
}

h2 {
  margin-bottom: var(--space-4);
  font-size: 1.25rem;
}

fieldset {
  min-width: 0;
  margin: 0;
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
}

[hidden] {
  display: none !important;
}

:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}

.screen {
  min-height: 100dvh;
}

.card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
  padding: var(--space-5);
}

.field {
  display: grid;
  gap: var(--space-1);
}

.field label,
legend {
  color: var(--color-muted);
  font-size: 0.9rem;
  font-weight: 700;
}

.primary-action {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: #ffffff;
}

.primary-action:hover:not(:disabled) {
  border-color: var(--color-primary-strong);
  background: var(--color-primary-strong);
}

.secondary-action {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.eyebrow {
  margin-bottom: var(--space-2);
  color: var(--color-primary);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.status-message {
  min-height: 1.5em;
  margin: var(--space-2) 0 0;
  color: var(--color-muted);
}

.error-message,
.status-message[data-status="error"] {
  color: var(--color-danger);
}

.badge {
  display: inline-grid;
  min-width: 2rem;
  min-height: 2rem;
  place-items: center;
  border-radius: 999px;
  background: var(--color-surface-muted);
  font-weight: 800;
}

.chat-unread {
  display: inline-grid;
  min-width: 1.5rem;
  min-height: 1.5rem;
  place-items: center;
  border-radius: 999px;
  background: var(--color-danger);
  color: var(--color-surface);
  font-size: 0.75rem;
  font-weight: 800;
}

.chat-unread[hidden] {
  display: none;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.die {
  display: grid;
  width: 72px;
  height: 72px;
  min-width: 72px;
  min-height: 72px;
  grid-template-columns: repeat(3, 0.75rem);
  grid-template-rows: repeat(3, 0.75rem);
  gap: var(--space-1);
  place-content: center;
  place-self: center;
  border: 2px solid var(--die-border);
  border-radius: 12px;
  background: var(--die-face);
  background-image: linear-gradient(145deg, rgb(255 255 255 / 88%), transparent 62%);
  box-shadow:
    3px 5px 10px var(--die-shadow),
    0 0.75rem 1.5rem rgb(15 23 42 / 14%),
    inset 0 1px 0 rgb(255 255 255 / 65%);
  color: var(--die-pip);
  padding: var(--space-2);
  transform: rotate(-2deg);
}

.die-dot {
  width: 0.65rem;
  height: 0.65rem;
  place-self: center;
  border-radius: 50%;
  background: currentColor;
  box-shadow: inset 0 1px 1px rgb(255 255 255 / 28%);
}

.die-dot[data-position="top-left"] {
  grid-area: 1 / 1;
}

.die-dot[data-position="top-right"] {
  grid-area: 1 / 3;
}

.die-dot[data-position="middle-left"] {
  grid-area: 2 / 1;
}

.die-dot[data-position="middle-center"] {
  grid-area: 2 / 2;
}

.die-dot[data-position="middle-right"] {
  grid-area: 2 / 3;
}

.die-dot[data-position="bottom-left"] {
  grid-area: 3 / 1;
}

.die-dot[data-position="bottom-right"] {
  grid-area: 3 / 3;
}

.die-number {
  display: none;
}

.die-panel,
.legal-actions,
.game-over-list {
  display: grid;
  gap: var(--space-2);
}

.die-panel {
  grid-template-columns: auto 1fr;
  align-items: center;
}

.control-label {
  color: var(--color-muted);
  font-weight: 700;
}

.action-countdown {
  width: fit-content;
  margin: var(--space-3) 0;
  border-radius: var(--radius-small);
  background: var(--color-surface-muted);
  padding: var(--space-2) var(--space-3);
  font-variant-numeric: tabular-nums;
  font-weight: 800;
}

.legal-actions button,
.button-link {
  min-height: 44px;
}

.legal-actions button {
  width: 100%;
  text-align: start;
}

.button-link {
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-small);
  padding: var(--space-2) var(--space-4);
  font-weight: 700;
  text-decoration: none;
}

.game-over-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.game-over-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-3);
  border-inline-start: 0.3rem solid var(--color-primary);
  border-radius: var(--radius-small);
  background: var(--color-surface-muted);
  padding: var(--space-2) var(--space-3);
}

.game-over-list li[data-winner="true"] {
  border-color: var(--color-primary);
  background: color-mix(in srgb, var(--color-primary) 14%, var(--color-surface-muted));
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--color-primary) 24%, transparent);
}

.game-over-place {
  min-width: 2rem;
  color: var(--color-muted);
  font-size: 1.2rem;
  font-weight: 900;
  text-align: center;
}

.game-over-player-copy,
.game-over-score {
  display: grid;
  gap: var(--space-1);
}

.game-over-player-name {
  overflow-wrap: anywhere;
}

.game-over-winner-badge,
.game-over-score-label {
  color: var(--color-muted);
  font-size: 0.8rem;
  font-weight: 700;
}

.game-over-score {
  justify-items: end;
  text-align: end;
}

.game-over-score-value {
  font-size: 1.5rem;
  font-weight: 900;
  line-height: 1;
}

#rematch-toggle[data-ready="true"],
#token-keys-toggle[aria-pressed="true"] {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: #ffffff;
}