/* ClearField design tokens */
:root {
  color-scheme: dark;

  --color-ink-950: #070b14;
  --color-ink-900: #0b1220;
  --color-ink-850: #101a2d;
  --color-ink-800: #15223a;
  --color-ink-700: #223452;
  --color-ink-500: #667894;
  --color-ink-300: #aebbd0;
  --color-ink-100: #eef4ff;

  --color-brand-700: #0f766e;
  --color-brand-500: #2dd4bf;
  --color-brand-300: #7deade;
  --color-accent-500: #fbbf24;
  --color-danger-500: #fb7185;
  --color-danger-700: #be123c;
  --color-success-500: #4ade80;

  --color-number-1: #7dd3fc;
  --color-number-2: #6ee7b7;
  --color-number-3: #fda4af;
  --color-number-4: #c4b5fd;
  --color-number-5: #fdba74;
  --color-number-6: #67e8f9;
  --color-number-7: #f0abfc;
  --color-number-8: #cbd5e1;

  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;

  --radius-sm: 0.65rem;
  --radius-md: 1rem;
  --radius-lg: 1.4rem;
  --radius-xl: 2rem;
  --radius-pill: 999px;

  --shadow-panel: 0 24px 70px rgb(0 0 0 / 0.24);
  --shadow-focus: 0 0 0 4px rgb(45 212 191 / 0.22);
  --border-subtle: 1px solid rgb(174 187 208 / 0.14);
  --transition-fast: 150ms ease;
  --content-max: 64rem;
}

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

html {
  min-height: 100%;
  background: var(--color-ink-950);
  scroll-behavior: smooth;
}

body {
  min-width: 20rem;
  min-height: 100vh;
  min-height: 100dvh;
  margin: 0;
  overflow-x: hidden;
  color: var(--color-ink-100);
  font-family: var(--font-sans);
  line-height: 1.55;
  background:
    radial-gradient(circle at 12% 4%, rgb(45 212 191 / 0.13), transparent 24rem),
    radial-gradient(circle at 92% 22%, rgb(251 191 36 / 0.08), transparent 22rem),
    var(--color-ink-950);
}

button,
input {
  font: inherit;
}

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

button,
a,
input,
summary {
  outline: none;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
summary:focus-visible {
  box-shadow: var(--shadow-focus);
}

[hidden] {
  display: none !important;
}

.skip-link {
  position: fixed;
  top: var(--space-3);
  left: var(--space-3);
  z-index: 100;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  color: var(--color-ink-950);
  background: var(--color-brand-300);
  font-weight: 800;
  transform: translateY(-160%);
}

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

.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;
}

.site-header,
.site-footer,
.app-shell {
  width: min(calc(100% - 1.5rem), var(--content-max));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 4.75rem;
  gap: var(--space-4);
  padding-top: env(safe-area-inset-top);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: inherit;
  text-decoration: none;
}

.brand__mark {
  width: 2.25rem;
  height: 2.25rem;
  flex: 0 0 auto;
}

.brand__mark rect {
  fill: var(--color-ink-800);
  stroke: rgb(125 234 222 / 0.35);
  stroke-width: 1.5;
}

.brand__mark rect:first-child {
  fill: var(--color-brand-500);
  stroke: var(--color-brand-300);
}

.brand__mark path {
  stroke: var(--color-accent-500);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.brand__wordmark {
  font-size: 1.1rem;
  font-weight: 850;
  letter-spacing: -0.025em;
}

.site-header__tagline {
  max-width: 11rem;
  color: var(--color-ink-300);
  font-size: 0.82rem;
  line-height: 1.25;
  text-align: right;
}

.app-shell {
  padding-block: var(--space-5) var(--space-12);
}

.screen {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  min-width: 0;
  gap: var(--space-5);
}

.screen > *,
.panel,
.game-topbar,
.board-viewport {
  min-width: 0;
}

.panel {
  border: var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: clamp(1.1rem, 4vw, 2rem);
  background: linear-gradient(150deg, rgb(21 34 58 / 0.96), rgb(11 18 32 / 0.96));
  box-shadow: var(--shadow-panel);
}

.panel--hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: clamp(2rem, 8vw, 4.5rem);
}

.panel--hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  width: 16rem;
  height: 16rem;
  right: -6rem;
  bottom: -7rem;
  border: 2.5rem solid rgb(45 212 191 / 0.08);
  border-radius: 4rem;
  transform: rotate(20deg);
}

.eyebrow {
  margin: 0 0 var(--space-2);
  color: var(--color-brand-300);
  font-size: 0.75rem;
  font-weight: 850;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

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

h1,
h2 {
  line-height: 1.08;
  letter-spacing: -0.035em;
}

h1 {
  max-width: 13ch;
  margin-bottom: var(--space-4);
  font-size: clamp(2.15rem, 9vw, 4.8rem);
}

h2 {
  margin-bottom: 0;
  font-size: clamp(1.45rem, 5vw, 2rem);
}

.hero__lead {
  max-width: 44rem;
  margin-bottom: var(--space-8);
  color: var(--color-ink-300);
  font-size: clamp(1rem, 2.8vw, 1.16rem);
}

.control-guide {
  display: grid;
  gap: var(--space-3);
  max-width: 47rem;
}

.control-guide__item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-ink-300);
}

.control-guide__item strong {
  color: var(--color-ink-100);
}

.control-guide__icon {
  display: grid;
  width: 2rem;
  height: 2rem;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid rgb(125 234 222 / 0.35);
  border-radius: 0.65rem;
  color: var(--color-brand-300);
  background: rgb(45 212 191 / 0.1);
  font-family: var(--font-mono);
  font-weight: 900;
}

.section-heading {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.section-heading > p {
  max-width: 24rem;
  margin-bottom: 0;
  color: var(--color-ink-300);
  font-size: 0.92rem;
}

.quick-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
}

.quick-card {
  position: relative;
  display: grid;
  min-height: 6.5rem;
  align-content: center;
  gap: var(--space-1);
  padding: var(--space-4);
  border: 1px solid rgb(174 187 208 / 0.16);
  border-radius: var(--radius-md);
  color: var(--color-ink-100);
  text-align: left;
  background: rgb(7 11 20 / 0.48);
  cursor: pointer;
  transition:
    border-color var(--transition-fast),
    background var(--transition-fast),
    transform var(--transition-fast);
}

.quick-card:hover {
  border-color: rgb(125 234 222 / 0.52);
  background: rgb(45 212 191 / 0.08);
  transform: translateY(-2px);
}

.quick-card:active {
  transform: translateY(0) scale(0.985);
}

.quick-card--featured {
  align-content: end;
  border-color: rgb(45 212 191 / 0.5);
  background: linear-gradient(145deg, rgb(45 212 191 / 0.14), rgb(7 11 20 / 0.5));
}

.quick-card__size {
  font-size: clamp(1.35rem, 5vw, 1.75rem);
  font-weight: 900;
  letter-spacing: -0.03em;
}

.quick-card__meta {
  color: var(--color-ink-300);
  font-size: 0.86rem;
}

.quick-card__badge {
  position: absolute;
  top: var(--space-1);
  right: var(--space-2);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-pill);
  color: var(--color-ink-950);
  background: var(--color-brand-300);
  font-size: 0.62rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.custom-form {
  display: grid;
  gap: var(--space-5);
}

.form-fieldset {
  padding: 0;
  border: 0;
  margin: 0;
}

.form-fieldset legend,
.field > span {
  display: block;
  margin-bottom: var(--space-2);
  color: var(--color-ink-100);
  font-size: 0.84rem;
  font-weight: 800;
}

.segmented {
  display: inline-grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-1);
  padding: var(--space-1);
  border: 1px solid rgb(174 187 208 / 0.17);
  border-radius: 0.85rem;
  background: var(--color-ink-950);
}

.segmented--wide {
  width: 100%;
}

.segmented__option {
  position: relative;
}

.segmented__option input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.segmented__option span,
.segmented__button {
  display: flex;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border: 0;
  border-radius: 0.62rem;
  color: var(--color-ink-300);
  background: transparent;
  font-size: 0.86rem;
  font-weight: 800;
  cursor: pointer;
  transition:
    color var(--transition-fast),
    background var(--transition-fast);
}

.segmented__option input:checked + span,
.segmented__button.is-active {
  color: var(--color-ink-950);
  background: var(--color-brand-300);
}

.segmented__option input:focus-visible + span {
  box-shadow: var(--shadow-focus);
}

.form-grid {
  display: grid;
  gap: var(--space-4);
}

.field input {
  width: 100%;
  min-height: 3.25rem;
  padding: 0 var(--space-4);
  border: 1px solid rgb(174 187 208 / 0.2);
  border-radius: 0.8rem;
  color: var(--color-ink-100);
  background: rgb(7 11 20 / 0.62);
  font-family: var(--font-mono);
  font-weight: 800;
  transition:
    border-color var(--transition-fast),
    background var(--transition-fast);
}

.field input:hover,
.field input:focus {
  border-color: rgb(125 234 222 / 0.48);
  background: rgb(7 11 20 / 0.9);
}

.field small {
  display: block;
  margin-top: var(--space-2);
  color: var(--color-ink-500);
  font-size: 0.76rem;
}

.form-error {
  margin: 0;
  padding: var(--space-3) var(--space-4);
  border: 1px solid rgb(251 113 133 / 0.35);
  border-radius: var(--radius-sm);
  color: #fecdd3;
  background: rgb(190 18 60 / 0.13);
  font-size: 0.88rem;
}

.button {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.7rem 1rem;
  border: 1px solid transparent;
  border-radius: 0.8rem;
  color: var(--color-ink-100);
  background: transparent;
  font-weight: 850;
  cursor: pointer;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast),
    transform var(--transition-fast);
}

.button:hover {
  transform: translateY(-1px);
}

.button:active {
  transform: translateY(0) scale(0.985);
}

.button--primary {
  color: var(--color-ink-950);
  background: var(--color-brand-300);
}

.button--primary:hover {
  background: #a7f3e9;
}

.button--secondary {
  border-color: rgb(125 234 222 / 0.32);
  color: var(--color-brand-300);
  background: rgb(45 212 191 / 0.08);
}

.button--ghost {
  border-color: rgb(174 187 208 / 0.17);
  color: var(--color-ink-300);
  background: rgb(7 11 20 / 0.28);
}

.button--large {
  min-height: 3.25rem;
  align-self: end;
}

.about-panel summary {
  cursor: pointer;
  color: var(--color-ink-100);
  font-weight: 850;
}

.about-panel__content {
  max-width: 48rem;
  padding-top: var(--space-4);
  color: var(--color-ink-300);
}

.about-panel__content p:last-child {
  margin-bottom: 0;
}

.game-screen {
  gap: var(--space-3);
}

.game-topbar,
.game-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.game-panel {
  padding-inline: clamp(0.75rem, 3vw, 2rem);
}

.game-heading {
  align-items: flex-start;
  padding-inline: clamp(0.25rem, 1vw, 0.75rem);
}

.game-heading h1 {
  max-width: none;
  margin-bottom: 0;
  font-size: clamp(1.7rem, 7vw, 2.6rem);
}

.status-pill {
  display: inline-flex;
  min-height: 2rem;
  align-items: center;
  padding: 0.35rem 0.7rem;
  border: 1px solid rgb(251 191 36 / 0.3);
  border-radius: var(--radius-pill);
  color: #fde68a;
  background: rgb(251 191 36 / 0.08);
  font-size: 0.72rem;
  font-weight: 850;
  white-space: nowrap;
}

.status-pill[data-state="playing"] {
  border-color: rgb(45 212 191 / 0.32);
  color: var(--color-brand-300);
  background: rgb(45 212 191 / 0.08);
}

.status-pill[data-state="won"] {
  border-color: rgb(74 222 128 / 0.32);
  color: #bbf7d0;
  background: rgb(74 222 128 / 0.08);
}

.status-pill[data-state="lost"] {
  border-color: rgb(251 113 133 / 0.35);
  color: #fecdd3;
  background: rgb(251 113 133 / 0.1);
}

.stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-2);
  margin-block: var(--space-5);
}

.stat {
  min-width: 0;
  padding: var(--space-3);
  border: 1px solid rgb(174 187 208 / 0.13);
  border-radius: var(--radius-sm);
  background: rgb(7 11 20 / 0.36);
}

.stat:last-child {
  grid-column: 1 / -1;
}

.stat__label {
  display: block;
  margin-bottom: var(--space-1);
  overflow: hidden;
  color: var(--color-ink-500);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-overflow: ellipsis;
  text-transform: uppercase;
  white-space: nowrap;
}

.stat__value {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.28rem;
  line-height: 1.1;
}

.stat__value--small {
  overflow: hidden;
  font-size: 0.92rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.action-dock {
  position: sticky;
  top: var(--space-2);
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin: var(--space-4) 0;
  padding: var(--space-2);
  border: 1px solid rgb(125 234 222 / 0.22);
  border-radius: var(--radius-md);
  background: rgb(11 18 32 / 0.94);
  box-shadow: 0 12px 35px rgb(0 0 0 / 0.32);
  backdrop-filter: blur(14px);
}

.action-dock__copy {
  display: none;
}

.action-dock .segmented {
  width: 100%;
}

.tool-icon {
  display: inline-grid;
  width: 1.1rem;
  height: 1.1rem;
  place-items: center;
  font-size: 1.05rem;
  line-height: 1;
}

.tool-icon--reveal {
  border: 2px solid currentColor;
  border-radius: 0.28rem;
}

.interaction-hint {
  margin: 0 0 var(--space-4);
  color: var(--color-ink-500);
  font-size: 0.76rem;
  text-align: center;
}

.board-viewport {
  width: 100%;
  max-width: 100%;
  overflow: auto;
  padding: var(--space-2);
  border: 1px solid rgb(174 187 208 / 0.13);
  border-radius: var(--radius-md);
  background:
    linear-gradient(rgb(174 187 208 / 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgb(174 187 208 / 0.025) 1px, transparent 1px),
    rgb(7 11 20 / 0.58);
  background-size: 18px 18px;
  overscroll-behavior-x: contain;
  scrollbar-color: var(--color-ink-700) transparent;
}

.board {
  --columns: 8;
  --cell-size: 2.5rem;
  --tile-gap: 0.15rem;
  display: grid;
  grid-template-columns: repeat(var(--columns), var(--cell-size));
  width: max-content;
  gap: var(--tile-gap);
  margin-inline: auto;
  touch-action: manipulation;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}

.tile {
  position: relative;
  display: grid;
  width: var(--cell-size);
  height: var(--cell-size);
  min-width: 0;
  place-items: center;
  padding: 0;
  border: 1px solid rgb(174 187 208 / 0.2);
  border-radius: clamp(0.32rem, calc(var(--cell-size) * 0.18), 0.62rem);
  color: var(--color-ink-100);
  background: linear-gradient(145deg, var(--color-ink-800), #111c30);
  box-shadow:
    inset 0 1px 0 rgb(255 255 255 / 0.05),
    0 2px 5px rgb(0 0 0 / 0.2);
  font-family: var(--font-mono);
  font-size: clamp(0.78rem, calc(var(--cell-size) * 0.46), 1.2rem);
  font-weight: 950;
  cursor: pointer;
  transition:
    transform 90ms ease,
    border-color var(--transition-fast),
    background var(--transition-fast);
}

.tile:hover {
  z-index: 1;
  border-color: rgb(125 234 222 / 0.58);
  background: linear-gradient(145deg, #203657, #152943);
}

.tile:active {
  transform: scale(0.92);
}

.tile[data-state="revealed"] {
  border-color: rgb(174 187 208 / 0.08);
  color: var(--color-ink-500);
  background: rgb(238 244 255 / 0.075);
  box-shadow: inset 0 1px 5px rgb(0 0 0 / 0.22);
  cursor: default;
}

.tile[data-state="flagged"] {
  border-color: rgb(251 191 36 / 0.48);
  color: var(--color-accent-500);
  background: linear-gradient(145deg, rgb(251 191 36 / 0.16), rgb(21 34 58 / 0.92));
}

.tile[data-state="mine"] {
  border-color: rgb(251 113 133 / 0.32);
  color: #fecdd3;
  background: rgb(190 18 60 / 0.18);
}

.tile[data-state="exploded"] {
  border-color: var(--color-danger-500);
  color: white;
  background: var(--color-danger-700);
  box-shadow: 0 0 0 4px rgb(251 113 133 / 0.16);
}

.tile[data-state="wrong-flag"] {
  border-color: rgb(251 113 133 / 0.42);
  color: var(--color-danger-500);
  background: rgb(190 18 60 / 0.12);
}

.tile[data-number="1"] { color: var(--color-number-1); }
.tile[data-number="2"] { color: var(--color-number-2); }
.tile[data-number="3"] { color: var(--color-number-3); }
.tile[data-number="4"] { color: var(--color-number-4); }
.tile[data-number="5"] { color: var(--color-number-5); }
.tile[data-number="6"] { color: var(--color-number-6); }
.tile[data-number="7"] { color: var(--color-number-7); }
.tile[data-number="8"] { color: var(--color-number-8); }

.tile[aria-disabled="true"] {
  cursor: default;
}

.result-dialog {
  width: min(90vw, 28rem);
  padding: clamp(1.5rem, 6vw, 2.25rem);
  border: 1px solid rgb(125 234 222 / 0.24);
  border-radius: var(--radius-lg);
  color: var(--color-ink-100);
  text-align: center;
  background: linear-gradient(160deg, #182945, var(--color-ink-900));
  box-shadow: 0 32px 90px rgb(0 0 0 / 0.65);
}

.result-dialog::backdrop {
  background: rgb(3 6 12 / 0.76);
  backdrop-filter: blur(5px);
}

.result-dialog__mark {
  display: grid;
  width: 3.6rem;
  height: 3.6rem;
  place-items: center;
  margin: 0 auto var(--space-4);
  border-radius: 1.15rem;
  color: var(--color-ink-950);
  background: var(--color-brand-300);
  font-size: 1.7rem;
  font-weight: 950;
  transform: rotate(-4deg);
}

.result-dialog[data-result="lost"] {
  border-color: rgb(251 113 133 / 0.28);
}

.result-dialog[data-result="lost"] .result-dialog__mark {
  color: white;
  background: var(--color-danger-700);
}

.result-dialog h2 {
  margin-bottom: var(--space-3);
  font-size: 2rem;
}

.result-dialog p:not(.eyebrow) {
  color: var(--color-ink-300);
}

.result-dialog__actions {
  display: grid;
  gap: var(--space-2);
  margin-top: var(--space-6);
}

.board-tools {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.board-tools > .button {
  flex: 0 0 auto;
  font-size: 0.82rem;
}

.game-help {
  min-width: 0;
  color: var(--color-ink-300);
  font-size: 0.82rem;
}

.game-help summary {
  min-height: 2.75rem;
  padding-block: 0.7rem;
  cursor: pointer;
}

.game-help p {
  margin-block: var(--space-2);
}

[data-cell-size][aria-pressed="true"] {
  border-color: var(--color-brand-300);
  color: var(--color-brand-300);
  background: rgb(45 212 191 / 0.12);
}

.site-footer {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding-block: var(--space-6) calc(var(--space-6) + env(safe-area-inset-bottom));
  border-top: 1px solid rgb(174 187 208 / 0.1);
  color: var(--color-ink-300);
  font-size: 0.8rem;
  text-align: center;
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  display: inline-block;
  padding-block: 0.5rem;
  color: var(--color-brand-300);
  text-underline-offset: 0.2em;
}

@media (max-width: 35.999rem) {
  .site-header {
    min-height: 4rem;
  }

  .app-shell {
    padding-top: var(--space-2);
    padding-bottom: var(--space-6);
  }

  .panel--hero {
    padding-block: var(--space-5);
  }

  .hero__lead {
    margin-bottom: var(--space-4);
  }

  .control-guide {
    gap: var(--space-2);
    font-size: 0.86rem;
  }

  .section-heading {
    gap: var(--space-2);
    margin-bottom: var(--space-4);
  }

  .quick-card {
    min-height: 5.75rem;
    padding: var(--space-3);
  }

  .game-heading .eyebrow {
    display: none;
  }

  .game-heading h1 {
    font-size: 1.6rem;
  }

  .stats {
    margin-block: var(--space-3);
  }

  .stat {
    padding: var(--space-2) var(--space-3);
  }

  .stat:last-child {
    display: none;
  }

  .is-playing {
    padding-bottom: calc(5.75rem + env(safe-area-inset-bottom));
  }

  .is-playing .action-dock {
    position: fixed;
    inset: auto max(var(--space-3), env(safe-area-inset-right))
      max(var(--space-2), env(safe-area-inset-bottom)) max(var(--space-3), env(safe-area-inset-left));
    margin: 0;
  }

  .action-dock .segmented__button {
    min-height: 3rem;
    font-size: 1rem;
  }

  .board-viewport {
    scroll-margin-bottom: 6rem;
  }

  .tile {
    scroll-margin-block: 1rem 7rem;
  }
}

@media (max-width: 21rem) {
  .board-viewport {
    padding: 0.375rem;
  }

  .board {
    --tile-gap: 0.1rem;
  }
}

@media (min-width: 36rem) {
  .section-heading {
    flex-direction: row;
    align-items: end;
    gap: var(--space-6);
  }

  .board-viewport {
    padding: var(--space-3);
  }

  .board {
    --tile-gap: 0.2rem;
  }

  .site-header,
  .site-footer,
  .app-shell {
    width: min(calc(100% - 3rem), var(--content-max));
  }

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

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

  #square-fields.form-grid--dimensions {
    grid-template-columns: minmax(0, 1fr);
    max-width: calc(50% - var(--space-2));
  }

  .form-grid--submit {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }

  .stats {
    grid-template-columns: 0.8fr 0.8fr 1.4fr;
  }

  .stat:last-child {
    grid-column: auto;
  }

  .action-dock__copy {
    display: grid;
    padding-left: var(--space-2);
  }

  .action-dock__copy span {
    color: var(--color-ink-500);
    font-size: 0.72rem;
  }

  .action-dock .segmented {
    width: auto;
    min-width: 18rem;
  }

  .result-dialog__actions {
    grid-template-columns: 1fr 1fr;
  }

  .site-footer {
    flex-direction: row;
    justify-content: space-between;
    gap: var(--space-6);
    text-align: left;
  }
}

@media (min-width: 54rem) {
  .screen {
    gap: var(--space-6);
  }

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

  .quick-grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .quick-card {
    min-height: 7.6rem;
  }

  .game-panel {
    padding-block: var(--space-8);
  }
}

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