*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  overflow-x: clip;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.55;
}

body {
  min-width: 20rem;
  min-height: 100dvh;
  background-image:
    linear-gradient(var(--color-rule) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-rule) 1px, transparent 1px);
  background-size: 4rem 4rem;
  background-position: -1px -1px;
}

button,
input,
select,
textarea {
  font: inherit;
}

input,
select,
textarea {
  width: 100%;
  min-height: 2.75rem;
  border: var(--rule-hair) solid var(--color-rule-2);
  border-radius: var(--radius-sm);
  background: var(--color-paper-2);
  color: var(--color-ink);
  outline: 2px solid transparent;
  outline-offset: 1px;
}

input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline-color: var(--color-focus);
}

input:disabled,
select:disabled,
textarea:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

input,
select {
  padding-inline: var(--space-sm);
}

textarea {
  min-height: 5.5rem;
  padding: var(--space-sm);
  resize: vertical;
}

input::placeholder,
textarea::placeholder {
  color: var(--color-muted);
}

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

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

a {
  color: inherit;
}

a:active {
  color: var(--color-accent);
}

svg {
  display: block;
}

.skip-link {
  position: fixed;
  inset-block-start: var(--space-sm);
  inset-inline-start: var(--space-sm);
  z-index: var(--z-toast);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-accent);
  color: var(--color-accent-ink);
  transform: translateY(-150%);
  transition: transform var(--dur-short) var(--ease-out);
}

.skip-link:focus {
  transform: translateY(0);
}

:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
}

.topbar {
  position: sticky;
  inset-block-start: 0;
  z-index: var(--z-sticky-nav);
  min-height: var(--banner-height);
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-md);
  padding-inline: var(--page-gutter);
  border-block-end: var(--rule-hair) solid var(--color-rule);
  background: var(--color-paper);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  min-height: 2.75rem;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 700;
  letter-spacing: -0.03em;
  text-decoration: none;
  white-space: nowrap;
}

.brand__mark {
  width: 2rem;
  height: 2rem;
  fill: none;
  stroke: var(--color-accent);
  stroke-linecap: square;
  stroke-linejoin: miter;
  stroke-width: 1.6;
}

.search-trigger {
  justify-self: center;
  width: min(100%, 34rem);
  height: 2.75rem;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding-inline: var(--space-md) var(--space-sm);
  border: var(--rule-hair) solid var(--color-rule-2);
  border-radius: var(--radius-sm);
  background: var(--color-paper-2);
  color: var(--color-muted);
  cursor: pointer;
  transition:
    background-color var(--dur-short) var(--ease-out),
    transform var(--dur-micro) var(--ease-out);
}

.search-trigger svg,
.icon-button svg {
  width: 1.1rem;
  height: 1.1rem;
  fill: none;
  stroke: currentColor;
  stroke-linecap: square;
  stroke-width: 1.7;
}

.search-trigger kbd {
  margin-inline-start: auto;
  padding: var(--space-2xs) var(--space-xs);
  border: var(--rule-hair) solid var(--color-rule-2);
  border-radius: var(--radius-sm);
  color: var(--color-ink-2);
  font-family: var(--font-body);
  font-size: var(--text-xs);
}

.topbar__actions {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.topbar__actions a {
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  padding-inline: var(--space-sm);
  color: var(--color-ink-2);
  font-size: var(--text-sm);
  text-decoration: none;
  white-space: nowrap;
}

.button,
.icon-button,
.segmented button {
  min-height: 2.75rem;
  border: var(--rule-hair) solid var(--color-rule-2);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-ink);
  cursor: pointer;
  transition:
    background-color var(--dur-short) var(--ease-out),
    color var(--dur-short) var(--ease-out),
    transform var(--dur-micro) var(--ease-out);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding-inline: var(--space-md);
  font-weight: 600;
  white-space: nowrap;
}

.button--join {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

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

.button:active,
.search-trigger:active,
.icon-button:active,
.segmented button:active,
.auth-switch button:active,
.search-result:active {
  transform: translateY(1px);
}

.button:disabled,
.search-trigger:disabled,
.icon-button:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.button[data-state="loading"] {
  cursor: wait;
}

.button[data-state="success"] {
  border-color: var(--color-success);
  color: var(--color-success);
}

.button[data-state="error"] {
  border-color: var(--color-error);
  color: var(--color-error);
}

[hidden] {
  display: none !important;
}

.shell {
  width: min(100%, var(--content-max));
  margin-inline: auto;
  padding: var(--space-xl) var(--page-gutter) var(--space-3xl);
}

.arena-head {
  display: grid;
  gap: var(--space-lg);
  align-items: end;
  padding-block: var(--space-md) var(--space-xl);
}

.status-line {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  margin: 0 0 var(--space-sm);
  color: var(--color-ink-2);
  font-size: var(--text-sm);
}

.status-line span {
  width: 0.62rem;
  height: 0.62rem;
  border: 2px solid var(--color-success);
  border-radius: 50%;
}

h1,
h2,
h3,
p {
  margin-block: 0;
}

h1,
h2,
h3 {
  min-width: 0;
  overflow-wrap: anywhere;
  font-family: var(--font-display);
  font-style: normal;
}

h1 {
  max-width: 16ch;
  font-size: var(--text-display);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -0.045em;
}

.arena-head > p {
  max-width: 54ch;
  color: var(--color-muted);
}

.score-ribbon {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--rule-hair);
  border: var(--rule-hair) solid var(--color-rule);
  background: var(--color-rule);
}

.score-ribbon > * {
  min-height: 3.4rem;
  display: flex;
  align-items: center;
  padding-inline: var(--space-md);
  background: var(--color-paper-2);
  color: var(--color-muted);
  font-size: var(--text-sm);
  text-decoration: none;
}

.score-ribbon strong {
  margin-inline-end: var(--space-xs);
  color: var(--color-ink);
  font-variant-numeric: tabular-nums;
}

.score-ribbon a {
  color: var(--color-accent);
  white-space: nowrap;
}

.workbench {
  display: grid;
  min-width: 0;
  margin-block-start: var(--space-lg);
  border: var(--rule-hair) solid var(--color-rule);
  background: var(--color-paper-2);
}

.challenge-board,
.ranking-tower {
  min-width: 0;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  min-height: 5.5rem;
  padding: var(--space-md);
  border-block-end: var(--rule-hair) solid var(--color-rule);
}

.panel-head h2 {
  font-size: var(--text-lg);
  line-height: 1.12;
}

.panel-head p {
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.segmented {
  display: none;
  gap: var(--space-2xs);
}

.segmented button {
  padding-inline: var(--space-sm);
  color: var(--color-muted);
  white-space: nowrap;
}

.segmented button.is-active {
  background: var(--color-paper-raised);
  color: var(--color-ink);
}

.challenge-list {
  display: grid;
}

.challenge-row {
  display: grid;
  grid-template-columns: 2.8rem minmax(0, 1fr) auto;
  grid-template-areas:
    "sigil main action"
    "meta meta meta";
  gap: var(--space-sm) var(--space-md);
  align-items: center;
  min-width: 0;
  padding: var(--space-md);
  border-block-end: var(--rule-hair) solid var(--color-rule);
  background: var(--color-paper-2);
}

.challenge-row:last-child {
  border-block-end: 0;
}

.game-sigil {
  grid-area: sigil;
  width: 2.8rem;
  height: 2.8rem;
  display: grid;
  place-items: center;
  border: var(--rule-hair) solid var(--color-rule-2);
  border-radius: 50%;
  color: var(--color-accent);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
}

.challenge-row__main {
  grid-area: main;
  min-width: 0;
}

.game-name {
  color: var(--color-muted);
  font-size: var(--text-xs);
}

.challenge-row h3 {
  margin-block: var(--space-3xs);
  font-size: var(--text-md);
  line-height: 1.15;
}

.challenge-row p {
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.challenge-meta {
  grid-area: meta;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-sm);
  margin: 0;
  padding-block-start: var(--space-sm);
}

.challenge-meta div {
  min-width: 0;
}

.challenge-meta dt {
  color: var(--color-muted);
  font-size: var(--text-xs);
}

.challenge-meta dd {
  margin: 0;
  color: var(--color-ink-2);
  font-size: var(--text-sm);
  font-variant-numeric: tabular-nums;
}

.button--join {
  grid-area: action;
}

.ranking-tower {
  border-block-start: var(--rule-hair) solid var(--color-rule);
  background: var(--color-paper-3);
}

.icon-button {
  width: 2.75rem;
  display: grid;
  place-items: center;
  color: var(--color-muted);
}

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

.ranking-list li {
  display: grid;
  grid-template-columns: 2.25rem minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-sm);
  min-height: 4.5rem;
  padding-inline: var(--space-md);
  border-block-end: var(--rule-hair) solid var(--color-rule);
}

.rank,
.points {
  font-family: var(--font-display);
  font-variant-numeric: tabular-nums;
}

.rank {
  color: var(--color-accent);
  font-size: var(--text-xs);
}

.player {
  min-width: 0;
  display: grid;
}

.player strong {
  overflow: hidden;
  font-size: var(--text-sm);
  font-weight: 600;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.player small,
.points small {
  color: var(--color-muted);
  font-size: var(--text-xs);
}

.points {
  font-size: var(--text-md);
}

.demo-note {
  padding: var(--space-md);
  color: var(--color-muted);
  font-size: var(--text-xs);
}

.demo-note strong {
  color: var(--color-ink-2);
}

.empty-state {
  padding: var(--space-xl) var(--space-md);
  color: var(--color-muted);
  text-align: center;
}

.player-panel {
  margin-block-start: var(--space-xl);
  border: var(--rule-hair) solid var(--color-rule);
  background: var(--color-paper-2);
}

.player-panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: var(--space-lg);
  border-block-end: var(--rule-hair) solid var(--color-rule);
}

.player-panel__head h2,
.playbook h2 {
  font-size: var(--text-xl);
}

.player-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0;
}

.player-stats div {
  min-width: 0;
  padding: var(--space-lg);
  border-inline-end: var(--rule-hair) solid var(--color-rule);
  border-block-end: var(--rule-hair) solid var(--color-rule);
}

.player-stats dt {
  color: var(--color-muted);
  font-size: var(--text-xs);
}

.player-stats dd {
  margin: var(--space-xs) 0 0;
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-variant-numeric: tabular-nums;
}

.player-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  padding: var(--space-lg);
}

.playbook {
  display: grid;
  gap: var(--space-xl);
  padding-block: var(--space-3xl) var(--space-xl);
}

.playbook > header {
  max-width: 40rem;
}

.playbook > header p {
  margin-block-start: var(--space-sm);
  color: var(--color-muted);
}

.playbook ol {
  display: grid;
  margin: 0;
  padding: 0;
  border-block-start: var(--rule-hair) solid var(--color-rule);
  list-style: none;
}

.playbook li {
  display: grid;
  grid-template-columns: 2.5rem minmax(0, 1fr);
  gap: var(--space-xs) var(--space-md);
  padding: var(--space-lg) 0;
  border-block-end: var(--rule-hair) solid var(--color-rule);
}

.playbook li > span {
  grid-row: span 2;
  color: var(--color-accent);
  font-family: var(--font-display);
  font-size: var(--text-xs);
}

.playbook li strong {
  font-family: var(--font-display);
  font-size: var(--text-md);
}

.playbook li p {
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.site-footer {
  width: min(100%, var(--content-max));
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-sm) var(--space-lg);
  margin-inline: auto;
  padding: var(--space-lg) var(--page-gutter);
  border-block-start: var(--rule-hair) solid var(--color-rule);
  color: var(--color-muted);
  font-size: var(--text-xs);
  line-height: 1;
}

.site-footer a {
  color: var(--color-ink-2);
  white-space: nowrap;
}

.dialog {
  width: min(calc(100% - 2rem), 36rem);
  max-height: min(90dvh, 48rem);
  margin: auto;
  padding: 0;
  overflow: auto;
  border: var(--rule-hair) solid var(--color-rule-2);
  border-radius: var(--radius-md);
  background: var(--color-paper);
  color: var(--color-ink);
  box-shadow: 0 1.5rem 5rem var(--color-shadow);
}

.dialog::backdrop {
  background: var(--color-overlay);
}

.dialog__frame {
  display: grid;
  gap: var(--space-lg);
  margin: 0;
  padding: var(--space-lg);
}

.dialog__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-md);
}

.dialog__head h2 {
  font-size: var(--text-lg);
}

.dialog__head p {
  margin-block-start: var(--space-xs);
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.dialog__head .icon-button {
  flex: 0 0 auto;
  font-size: var(--text-lg);
}

.form-stack {
  display: grid;
  gap: var(--space-md);
}

.field {
  display: grid;
  gap: var(--space-xs);
  color: var(--color-ink-2);
  font-size: var(--text-sm);
}

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

.field-hint,
.form-message {
  min-height: 1.3em;
  color: var(--color-muted);
  font-size: var(--text-xs);
}

.form-message[data-state="error"] {
  color: var(--color-error);
}

.form-message[data-state="success"] {
  color: var(--color-success);
}

.auth-switch {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border: var(--rule-hair) solid var(--color-rule-2);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.auth-switch button {
  min-height: 2.75rem;
  border: 0;
  background: transparent;
  color: var(--color-muted);
  cursor: pointer;
}

.auth-switch button.is-active {
  background: var(--color-paper-raised);
  color: var(--color-ink);
}

.search-results {
  display: grid;
  gap: var(--space-xs);
}

.search-result {
  min-height: 3.5rem;
  display: grid;
  gap: var(--space-3xs);
  padding: var(--space-sm);
  border: var(--rule-hair) solid var(--color-rule);
  border-radius: var(--radius-sm);
  background: var(--color-paper-2);
  color: var(--color-ink);
  text-align: start;
  cursor: pointer;
}

.search-result > * {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.search-result small {
  color: var(--color-muted);
}

.toast {
  position: fixed;
  inset-inline: var(--space-md);
  inset-block-end: var(--space-md);
  z-index: var(--z-toast);
  max-width: 30rem;
  margin-inline-start: auto;
  padding: var(--space-sm) var(--space-md);
  border: var(--rule-hair) solid var(--color-rule-2);
  border-radius: var(--radius-sm);
  background: var(--color-paper-raised);
  box-shadow: 0 0.75rem 2rem var(--color-shadow);
}

.toast[data-state="error"] {
  border-color: var(--color-error);
}

.challenge-row.is-highlighted {
  outline: 2px solid var(--color-focus);
  outline-offset: -2px;
}

@media (hover: hover) and (pointer: fine) {
  .button:hover,
  .icon-button:hover,
  .segmented button:hover,
  .search-trigger:hover {
    background: var(--color-paper-raised);
  }

  .button--join:hover {
    background: var(--color-accent);
    color: var(--color-accent-ink);
  }

  .topbar__actions a:hover {
    color: var(--color-accent);
  }

  .search-result:hover {
    border-color: var(--color-accent);
  }
}

@media (min-width: 40rem) {
  .arena-head {
    grid-template-columns: minmax(0, 1.25fr) minmax(16rem, 0.75fr);
  }

  .score-ribbon {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .segmented {
    display: flex;
  }

  .challenge-row {
    grid-template-columns: 2.8rem minmax(0, 1fr) minmax(13rem, auto) auto;
    grid-template-areas: "sigil main meta action";
    padding-block: var(--space-lg);
  }

  .challenge-meta {
    grid-template-columns: repeat(2, minmax(5.5rem, 1fr));
    padding-block-start: 0;
  }

  .player-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .playbook ol {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .playbook li {
    grid-template-columns: 1fr;
    border-inline-end: var(--rule-hair) solid var(--color-rule);
    padding-inline: var(--space-lg);
  }

  .playbook li > span {
    grid-row: auto;
  }

  .field-pair {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 64rem) {
  .workbench {
    grid-template-columns: minmax(0, 1.65fr) minmax(20rem, 0.75fr);
  }

  .ranking-tower {
    border-block-start: 0;
    border-inline-start: var(--rule-hair) solid var(--color-rule);
  }
}

@media (max-width: 39.999rem) {
  .topbar {
    grid-template-columns: auto auto auto;
  }

  .brand span,
  .search-trigger span,
  .search-trigger kbd,
  .topbar__actions > a {
    display: none;
  }

  .search-trigger {
    width: 2.75rem;
    justify-content: center;
    padding: 0;
  }

  .shell {
    padding-block-start: var(--space-lg);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 150ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 150ms !important;
  }
}