:root {
  color-scheme: light;
  --color-brand-50: #fbf5f7;
  --color-brand-100: #f5e7ec;
  --color-brand-200: #e8cbd6;
  --color-brand-600: #73384f;
  --color-brand-700: #5c2c45;
  --color-brand-800: #482137;
  --color-play-purple: #7656a7;
  --color-play-purple-soft: #f1ecfa;
  --color-play-blue: #2d7083;
  --color-play-blue-soft: #e9f6f8;
  --color-play-green: #357457;
  --color-play-green-soft: #eaf7f0;
  --color-play-yellow: #925900;
  --color-play-yellow-soft: #fff3d5;
  --color-accent-50: #fdf6f1;
  --color-accent-100: #f9e8dc;
  --color-accent-500: #c56227;
  --color-accent-600: #a84e1d;
  --color-ink: #241e22;
  --color-text: #3f363b;
  --color-muted: #6d6268;
  --color-border: #ded8db;
  --color-surface: #ffffff;
  --color-canvas: #f8f6f7;
  --color-success-50: #edf8f2;
  --color-success-700: #246b47;
  --color-warning-50: #fff7e6;
  --color-warning-700: #8a5800;
  --color-danger-50: #fff1f2;
  --color-danger-700: #a12634;
  --color-info-50: #eff6ff;
  --color-info-700: #285a91;
  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.375rem;
  --text-2xl: clamp(1.75rem, 4vw, 2.35rem);
  --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: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-playful: 1.75rem 1.75rem 1.75rem 0.75rem;
  --radius-pill: 999px;
  --shadow-sm: 0 1px 2px rgb(36 30 34 / 6%);
  --shadow-md: 0 10px 30px rgb(72 33 55 / 9%);
  --shadow-playful: 0 18px 45px rgb(72 33 55 / 11%);
  --shadow-float: 0 22px 50px rgb(72 33 55 / 16%);
  --focus-ring: 0 0 0 3px rgb(197 98 39 / 30%);
  --container: 72rem;
  --content: 48rem;
}

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

[hidden] {
  display: none !important;
}

html {
  min-width: 20rem;
  background: var(--color-canvas);
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  display: flex;
  flex-direction: column;
  overflow-wrap: break-word;
  background:
    radial-gradient(circle at 100% 0, rgb(197 98 39 / 8%), transparent 26rem),
    var(--color-canvas);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

img,
svg {
  max-width: 100%;
}

a {
  color: var(--color-brand-700);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.15em;
}

a:hover {
  color: var(--color-accent-600);
}

:focus-visible {
  outline: 3px solid var(--color-accent-500);
  outline-offset: 3px;
}

::selection {
  background: var(--color-brand-200);
  color: var(--color-ink);
}

.container {
  width: min(var(--container), calc(100% - 2rem));
  margin-inline: auto;
}

.content-narrow {
  width: min(100%, var(--content));
}

.page {
  flex: 1;
  width: 100%;
  padding-block: var(--space-10) var(--space-12);
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: var(--space-3);
  left: var(--space-3);
  padding: var(--space-3) var(--space-4);
  transform: translateY(-180%);
  border-radius: var(--radius-sm);
  background: var(--color-brand-800);
  color: white;
  font-weight: 700;
}

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

.navbar {
  position: relative;
  z-index: 20;
  border-bottom: 1px solid var(--color-border);
  background: rgb(255 255 255 / 94%);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(10px);
}

.navbar__inner {
  min-height: 4.5rem;
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.navbar__brand {
  display: inline-flex;
  flex: none;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-brand-700);
  font-size: var(--text-lg);
  font-weight: 800;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.navbar__brand::before {
  width: 2rem;
  height: 2rem;
  display: grid;
  place-items: center;
  border-radius: 0.65rem 0.65rem 0.65rem 0.2rem;
  background: linear-gradient(135deg, var(--color-brand-700), var(--color-accent-500));
  box-shadow: 0 5px 12px rgb(92 44 69 / 20%);
  color: white;
  content: "O";
  font-size: var(--text-sm);
}

.navbar .navbar__menu-button {
  margin-left: auto;
  display: none;
}

.navbar__nav {
  min-width: 0;
  margin-left: auto;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-1);
}

.navbar__link {
  min-height: 2.75rem;
  padding: 0 var(--space-3);
  display: inline-flex;
  align-items: center;
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: var(--text-sm);
  font-weight: 650;
  text-decoration: none;
  white-space: nowrap;
}

.navbar__link:hover {
  background: var(--color-brand-50);
  color: var(--color-brand-700);
}

.navbar__link[aria-current="page"] {
  background: var(--color-brand-100);
  color: var(--color-brand-800);
}

.navbar__account {
  min-width: 0;
  margin-left: var(--space-2);
  padding-left: var(--space-4);
  border-left: 1px solid var(--color-border);
}

.navbar__user {
  max-width: 12rem;
  display: block;
  overflow: hidden;
  color: var(--color-muted);
  font-size: var(--text-xs);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.navbar__user strong {
  color: var(--color-text);
  font-size: var(--text-sm);
}

.navbar__inline {
  margin: 0;
}

.footer {
  margin-top: auto;
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
}

.footer__inner {
  min-height: 4.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  color: var(--color-muted);
  font-size: var(--text-sm);
}

h1,
h2,
h3 {
  margin-block: 0 var(--space-4);
  color: var(--color-ink);
  line-height: 1.2;
  letter-spacing: -0.025em;
}

h1 {
  font-size: var(--text-2xl);
}

h2 {
  font-size: var(--text-xl);
}

h3 {
  font-size: var(--text-lg);
}

p {
  margin-block: 0 var(--space-4);
}

.eyebrow {
  margin-bottom: var(--space-2);
  color: var(--color-accent-600);
  font-size: var(--text-xs);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.lead {
  max-width: 42rem;
  color: var(--color-muted);
  font-size: var(--text-lg);
}

.muted,
.list-row__sub {
  color: var(--color-muted);
}

.card {
  padding: clamp(var(--space-5), 4vw, var(--space-8));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-md);
}

.panel {
  padding: clamp(var(--space-5), 4vw, var(--space-8));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  box-shadow: var(--shadow-md);
}

.card--flat {
  box-shadow: var(--shadow-sm);
}

.stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.cluster {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
}

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

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

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

.section {
  padding-block: var(--space-12);
}

.section-compact {
  margin-top: var(--space-6);
}

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.section-heading {
  max-width: 42rem;
  margin-bottom: var(--space-8);
}

.page-header {
  margin-bottom: var(--space-8);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-6);
}

.page-heading,
.game-page-heading {
  position: relative;
  margin-bottom: var(--space-8);
  padding: clamp(var(--space-5), 4vw, var(--space-8));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  overflow: hidden;
  border: 1px solid var(--color-brand-200);
  border-radius: var(--radius-playful);
  background:
    radial-gradient(circle at 88% 18%, rgb(197 98 39 / 16%) 0 3.8rem, transparent 3.9rem),
    linear-gradient(135deg, var(--color-brand-50), var(--color-surface) 62%, var(--color-accent-50));
}

.page-heading::after,
.game-page-heading::after {
  position: absolute;
  right: 17%;
  bottom: -1.75rem;
  width: 4.5rem;
  aspect-ratio: 1;
  border: 0.7rem solid rgb(92 44 69 / 9%);
  border-radius: 50%;
  content: "";
  pointer-events: none;
}

.page-heading > *,
.game-page-heading > * {
  position: relative;
  z-index: 1;
}

.page-heading p,
.game-page-heading p {
  max-width: 44rem;
  margin-bottom: 0;
  color: var(--color-muted);
}

.professional-shell {
  --professional-color: var(--color-play-blue);
  --professional-soft: var(--color-play-blue-soft);
}

.feature-unavailable {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-block: var(--space-5);
  padding: var(--space-4) var(--space-5);
  color: var(--color-muted);
  background: var(--color-info-50);
  border: 1px solid color-mix(in srgb, var(--color-info-700) 24%, var(--color-border));
  border-radius: var(--radius-lg);
}

.feature-unavailable__icon {
  display: grid;
  flex: 0 0 2.5rem;
  width: 2.5rem;
  height: 2.5rem;
  place-items: center;
  color: var(--color-info-700);
  background: var(--color-surface);
  border-radius: 50%;
  box-shadow: var(--shadow-sm);
}

.feature-unavailable strong {
  color: var(--color-text);
}

.feature-unavailable p {
  margin: var(--space-1) 0 0;
}

.professional-heading {
  position: relative;
  margin-bottom: var(--space-8);
  padding: clamp(var(--space-5), 4vw, var(--space-8));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--professional-color) 22%, var(--color-border));
  border-radius: var(--radius-xl);
  background:
    linear-gradient(115deg, var(--professional-soft), var(--color-surface) 58%);
}

.professional-heading::after {
  position: absolute;
  right: -2rem;
  bottom: -4rem;
  width: 12rem;
  aspect-ratio: 1;
  border: 1.8rem solid rgb(52 124 145 / 8%);
  border-radius: 50%;
  content: "";
  pointer-events: none;
}

.professional-heading > * {
  position: relative;
  z-index: 1;
}

.professional-heading p {
  max-width: 48rem;
  margin-bottom: 0;
  color: var(--color-muted);
}

.professional-kicker {
  margin-bottom: var(--space-2);
  color: var(--professional-color);
  font-size: var(--text-xs);
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.game-kicker {
  width: fit-content;
  margin-bottom: var(--space-3);
  padding: var(--space-1) var(--space-3);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  border-radius: var(--radius-pill);
  background: var(--color-accent-100);
  color: var(--color-accent-600);
  font-size: var(--text-xs);
  font-weight: 850;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.game-kicker::before {
  width: 0.55rem;
  aspect-ratio: 1;
  border-radius: 50%;
  background: currentcolor;
  content: "";
}

.page-header .lead {
  margin-bottom: 0;
}

.auth-layout {
  min-height: min(42rem, calc(100vh - 13rem));
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(20rem, 0.75fr);
  align-items: center;
  gap: clamp(var(--space-8), 8vw, 6rem);
}

.auth-intro {
  max-width: 38rem;
}

.auth-card {
  width: 100%;
}

.auth-card .alert {
  margin-bottom: var(--space-5);
}

.auth-actions {
  margin-top: var(--space-6);
}

.feature-list {
  margin: var(--space-8) 0 0;
  padding: 0;
  display: grid;
  gap: var(--space-4);
  list-style: none;
}

.feature-list li {
  position: relative;
  padding-left: var(--space-8);
  color: var(--color-text);
}

.feature-list li::before {
  position: absolute;
  top: 0.15rem;
  left: 0;
  width: 1.4rem;
  height: 1.4rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--color-success-50);
  color: var(--color-success-700);
  content: "✓";
  font-size: var(--text-xs);
  font-weight: 900;
}

.home-hero {
  min-height: min(38rem, calc(100vh - 9rem));
  padding-block: var(--space-8);
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(18rem, 0.85fr);
  align-items: center;
  gap: var(--space-10);
}

.home-hero__content {
  position: relative;
  z-index: 2;
}

.home-hero__content h1 {
  max-width: 48rem;
  font-size: clamp(2.25rem, 6vw, 4.35rem);
}

.home-hero__actions {
  margin-top: var(--space-8);
}

.home-hero__visual {
  position: relative;
  min-height: 22rem;
  isolation: isolate;
}

.home-hero__visual::before {
  position: absolute;
  inset: 12% 4% 4%;
  z-index: -2;
  border-radius: 48% 52% 58% 42%;
  background: linear-gradient(145deg, var(--color-brand-100), var(--color-accent-100));
  content: "";
  transform: rotate(-7deg);
}

.letter-tile {
  position: absolute;
  width: clamp(4.5rem, 8vw, 6.75rem);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border: 1px solid rgb(255 255 255 / 70%);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: 0 18px 36px rgb(72 33 55 / 16%);
  color: var(--color-brand-700);
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 900;
}

.letter-tile--one {
  top: 10%;
  left: 14%;
  transform: rotate(-8deg);
}

.letter-tile--two {
  top: 25%;
  right: 12%;
  transform: rotate(7deg);
}

.letter-tile--three {
  bottom: 12%;
  left: 24%;
  transform: rotate(4deg);
}

.letter-tile--four {
  right: 26%;
  bottom: 3%;
  transform: rotate(-5deg);
}

.progress-orbit {
  position: absolute;
  top: 42%;
  left: 38%;
  z-index: -1;
  width: 7.5rem;
  aspect-ratio: 1;
  border: 0.85rem solid rgb(255 255 255 / 70%);
  border-top-color: var(--color-accent-500);
  border-radius: 50%;
  transform: rotate(35deg);
}

.feature-card {
  height: 100%;
}

.feature-card__number {
  margin-bottom: var(--space-8);
  display: block;
  color: var(--color-accent-500);
  font-size: var(--text-sm);
  font-weight: 900;
}

.feature-card p {
  margin-bottom: 0;
  color: var(--color-muted);
}

.game-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-6);
}

.game-card {
  --game-color: var(--color-brand-700);
  --game-soft: var(--color-brand-100);
  position: relative;
  min-height: 26rem;
  padding: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  overflow: hidden;
  border-color: color-mix(in srgb, var(--game-color) 24%, var(--color-border));
  border-radius: var(--radius-playful);
  box-shadow: var(--shadow-playful);
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.game-card:hover {
  border-color: color-mix(in srgb, var(--game-color) 48%, var(--color-border));
  box-shadow: var(--shadow-float);
  transform: translateY(-0.25rem);
}

.game-card--lexicon {
  --game-color: var(--color-brand-700);
  --game-soft: var(--color-brand-100);
}

.game-card--spelling {
  --game-color: var(--color-play-purple);
  --game-soft: var(--color-play-purple-soft);
}

.game-card--listening {
  --game-color: var(--color-play-blue);
  --game-soft: var(--color-play-blue-soft);
}

.game-card--syllables {
  --game-color: var(--color-play-green);
  --game-soft: var(--color-play-green-soft);
}

.game-card--crossword {
  --game-color: var(--color-play-yellow);
  --game-soft: var(--color-play-yellow-soft);
}

.game-card__icon {
  width: 100%;
  min-height: 10.5rem;
  padding: var(--space-5);
  display: grid;
  place-items: center;
  overflow: hidden;
  background:
    radial-gradient(circle at 82% 24%, rgb(255 255 255 / 72%) 0 2.4rem, transparent 2.5rem),
    linear-gradient(145deg, var(--game-soft), color-mix(in srgb, var(--game-soft) 58%, white));
  color: var(--game-color);
  font-size: var(--text-xl);
  font-weight: 900;
  letter-spacing: 0.12em;
}

.game-card__symbol {
  min-width: 8rem;
  min-height: 5.5rem;
  padding: var(--space-4);
  display: grid;
  place-items: center;
  border: 0.3rem solid rgb(255 255 255 / 78%);
  border-radius: 1.35rem 1.35rem 1.35rem 0.55rem;
  background: var(--game-color);
  box-shadow: 0 12px 26px color-mix(in srgb, var(--game-color) 26%, transparent);
  color: white;
  font-size: clamp(1.15rem, 3vw, 1.75rem);
  transform: rotate(-2deg);
}

.game-card:nth-child(even) .game-card__symbol {
  transform: rotate(2deg);
}

.game-card__icon--grid {
  grid-template-columns: repeat(2, 2.7rem);
  place-content: center;
  gap: var(--space-2);
}

.game-card__icon--grid span {
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border-radius: var(--radius-sm);
  background: var(--game-color);
  box-shadow: var(--shadow-sm);
  color: white;
  font-size: var(--text-sm);
}

.game-card__body {
  width: 100%;
  padding: var(--space-6) var(--space-6) var(--space-4);
  flex: 1;
}

.game-card__body h2 {
  margin-top: var(--space-4);
}

.game-card__body p,
.game-card__notice {
  color: var(--color-muted);
}

.game-card__footer {
  width: 100%;
  padding: 0 var(--space-6) var(--space-6);
}

.game-card__footer .btn {
  width: 100%;
}

.game-card__footer .btn--primary {
  border-color: var(--game-color);
  background: var(--game-color);
}

.game-card__footer .btn--primary:hover {
  border-color: color-mix(in srgb, var(--game-color) 82%, black);
  background: color-mix(in srgb, var(--game-color) 82%, black);
}

.game-card .badge {
  background: var(--game-soft);
  color: var(--game-color);
}

.badge--muted {
  background: #eee9eb;
  color: var(--color-muted);
}

.game-progress {
  display: grid;
  gap: var(--space-2);
}

.game-progress__labels {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  color: var(--color-muted);
  font-size: var(--text-sm);
  font-weight: 750;
}

.game-progress__track {
  height: 0.7rem;
  overflow: hidden;
  border-radius: var(--radius-pill);
  background: var(--color-brand-100);
}

.game-progress__bar {
  width: var(--progress, 0%);
  height: 100%;
  display: block;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--color-brand-700), var(--color-accent-500));
  transition: width 280ms ease;
}

.game-shell {
  --game-color: var(--color-brand-700);
  --game-soft: var(--color-brand-100);
}

.game-shell--spelling {
  --game-color: var(--color-play-purple);
  --game-soft: var(--color-play-purple-soft);
}

.game-shell--lexicon {
  --game-color: var(--color-brand-700);
  --game-soft: var(--color-brand-100);
}

.game-shell--listening {
  --game-color: var(--color-play-blue);
  --game-soft: var(--color-play-blue-soft);
}

.game-shell--syllables {
  --game-color: var(--color-play-green);
  --game-soft: var(--color-play-green-soft);
}

.game-shell--definitions {
  --game-color: var(--color-play-yellow);
  --game-soft: var(--color-play-yellow-soft);
}

.game-shell .eyebrow {
  color: var(--game-color);
}

.game-shell .game-progress__track {
  background: var(--game-soft);
}

.game-shell .game-progress__bar {
  background: linear-gradient(
    90deg,
    var(--game-color),
    color-mix(in srgb, var(--game-color) 62%, var(--color-accent-500))
  );
}

.game-shell .game-session-bar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-5);
  border-color: color-mix(in srgb, var(--game-color) 22%, var(--color-border));
  background:
    radial-gradient(circle at 94% 16%, rgb(255 255 255 / 64%) 0 2.8rem, transparent 2.9rem),
    linear-gradient(135deg, var(--game-soft), var(--color-surface) 68%);
}

.game-shell .game-session-bar h2 {
  margin-bottom: 0;
}

.game-session-progress {
  grid-column: 1 / -1;
  margin-top: var(--space-4);
}

.game-shell .game-score {
  background: var(--game-soft);
  color: var(--game-color);
}

.game-score {
  padding: var(--space-2) var(--space-4);
  display: inline-flex;
  align-items: baseline;
  gap: var(--space-2);
  border-radius: var(--radius-pill);
  background: var(--color-play-yellow-soft);
  color: var(--color-play-yellow);
  font-weight: 800;
}

.game-feedback {
  padding: clamp(var(--space-5), 4vw, var(--space-8));
  border: 2px solid transparent;
  border-radius: var(--radius-playful);
  text-align: center;
}

.game-feedback--success {
  border-color: color-mix(in srgb, var(--color-success-700) 34%, white);
  background: var(--color-success-50);
  color: var(--color-success-700);
}

.game-feedback--error {
  border-color: color-mix(in srgb, var(--color-danger-700) 28%, white);
  background: var(--color-danger-50);
  color: var(--color-danger-700);
}

.game-feedback--hint {
  border-color: color-mix(in srgb, var(--color-info-700) 28%, white);
  background: var(--color-info-50);
  color: var(--color-info-700);
}

.game-feedback[data-outcome^="SUCCESS"] {
  border-color: color-mix(in srgb, var(--color-success-700) 34%, white);
  background: var(--color-success-50);
  color: var(--color-success-700);
}

.game-feedback[data-outcome="FAILED"] {
  border-color: color-mix(in srgb, var(--color-warning-700) 32%, white);
  background: var(--color-warning-50);
  color: var(--color-warning-700);
}

.game-assignment-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr));
  gap: var(--space-4);
}

.game-assignment-card {
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: linear-gradient(145deg, var(--color-surface), var(--color-canvas));
}

.game-final {
  position: relative;
  overflow: hidden;
  border-color: color-mix(in srgb, var(--color-success-700) 28%, var(--color-border));
  background:
    radial-gradient(circle at 88% 20%, rgb(63 125 97 / 14%) 0 4rem, transparent 4.1rem),
    linear-gradient(135deg, var(--color-success-50), var(--color-surface));
  text-align: center;
}

.btn {
  min-height: 2.75rem;
  padding: 0 var(--space-4);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  transition: border-color 140ms ease, background-color 140ms ease, color 140ms ease, transform 140ms ease;
}

.btn:hover {
  border-color: var(--color-brand-200);
  background: var(--color-brand-50);
  color: var(--color-brand-700);
}

.btn:active {
  transform: translateY(1px);
}

.btn--primary {
  border-color: var(--color-brand-700);
  background: var(--color-brand-700);
  color: white;
}

.btn--primary:hover {
  border-color: var(--color-brand-800);
  background: var(--color-brand-800);
  color: white;
}

.btn--secondary {
  border-color: var(--color-accent-500);
  color: var(--color-accent-600);
}

.btn--ghost {
  border-color: transparent;
  background: transparent;
  color: var(--color-brand-700);
}

.btn--danger {
  border-color: var(--color-danger-700);
  color: var(--color-danger-700);
}

.btn--sm {
  min-height: 2.25rem;
  padding-inline: var(--space-3);
  font-size: var(--text-sm);
}

.btn[disabled],
.btn[aria-disabled="true"] {
  opacity: 0.55;
  cursor: not-allowed;
}

.label,
label {
  color: var(--color-text);
  font-size: var(--text-sm);
  font-weight: 700;
}

.input,
input:not([type="checkbox"], [type="radio"], [type="hidden"], [type="submit"]),
select,
textarea {
  width: 100%;
  min-height: 2.75rem;
  padding: var(--space-3);
  border: 1px solid #b9afb4;
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-ink);
}

textarea {
  min-height: 8rem;
  resize: vertical;
}

.input:focus,
input:focus,
select:focus,
textarea:focus {
  border-color: var(--color-accent-500);
  outline: none;
  box-shadow: var(--focus-ring);
}

.form-row {
  margin-bottom: var(--space-5);
  display: grid;
  gap: var(--space-2);
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.field-help,
.helptext {
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.errorlist {
  margin: var(--space-2) 0 0;
  padding-left: var(--space-5);
  color: var(--color-danger-700);
  font-size: var(--text-sm);
  font-weight: 650;
}

.list-row {
  min-width: 0;
  padding: var(--space-4) 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  border-top: 1px solid var(--color-border);
}

.list-row:first-child {
  border-top: 0;
}

.alert,
.alert--ok,
.alert--error {
  padding: var(--space-4);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
}

.alert--ok,
.alert--success {
  border-color: #b9ddca;
  background: var(--color-success-50);
  color: var(--color-success-700);
}

.alert--error,
.alert--danger {
  border-color: #f2c5ca;
  background: var(--color-danger-50);
  color: var(--color-danger-700);
}

.alert--warning {
  border-color: #efd79f;
  background: var(--color-warning-50);
  color: var(--color-warning-700);
}

.alert--info {
  border-color: #c6daf1;
  background: var(--color-info-50);
  color: var(--color-info-700);
}

.badge {
  width: fit-content;
  padding: var(--space-1) var(--space-3);
  display: inline-flex;
  align-items: center;
  border-radius: var(--radius-pill);
  background: var(--color-brand-100);
  color: var(--color-brand-800);
  font-size: var(--text-xs);
  font-weight: 800;
}

.empty-state {
  padding: var(--space-10) var(--space-5);
  border: 1px dashed #c9bfc4;
  border-radius: var(--radius-lg);
  background: rgb(255 255 255 / 55%);
  text-align: center;
}

.empty-state > :last-child {
  margin-bottom: 0;
}

.error-page {
  min-height: min(36rem, calc(100vh - 13rem));
  display: grid;
  grid-template-columns: minmax(12rem, 0.6fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(var(--space-8), 8vw, 6rem);
}

.error-page__code {
  color: var(--color-brand-100);
  font-size: clamp(8rem, 24vw, 17rem);
  font-weight: 950;
  letter-spacing: -0.09em;
  line-height: 0.8;
  text-shadow: 0 1px 0 var(--color-brand-200);
}

.error-page__content {
  max-width: 42rem;
}

.error-page__actions {
  margin-top: var(--space-8);
}

.error-page__reference {
  margin-top: var(--space-10);
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.error-page__reference code {
  margin-top: var(--space-2);
  padding: var(--space-2) var(--space-3);
  display: inline-block;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: var(--text-sm);
  overflow-wrap: anywhere;
}

.skeleton {
  min-height: 1rem;
  border-radius: var(--radius-sm);
  background: linear-gradient(90deg, #eee9eb 25%, #f8f6f7 50%, #eee9eb 75%);
  background-size: 200% 100%;
  animation: skeleton 1.5s infinite linear;
}

.messages {
  margin: 0 0 var(--space-6);
  padding: 0;
  display: grid;
  gap: var(--space-3);
  list-style: none;
}

@keyframes skeleton {
  from { background-position: 200% 0; }
  to { background-position: -200% 0; }
}

@media (max-width: 64rem) {
  .game-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .navbar__inner {
    flex-wrap: wrap;
    padding-block: var(--space-3);
  }

  .js .navbar__menu-button {
    display: inline-flex;
  }

  .navbar__nav {
    width: 100%;
    margin: 0;
    padding-top: var(--space-3);
    flex-direction: column;
    align-items: stretch;
    border-top: 1px solid var(--color-border);
  }

  .js .navbar__nav:not([data-open="true"]) {
    display: none;
  }

  .navbar__link,
  .navbar__inline .btn {
    width: 100%;
    justify-content: flex-start;
  }

  .navbar__account {
    width: 100%;
    margin: var(--space-2) 0 0;
    padding: var(--space-4) 0 0;
    border-top: 1px solid var(--color-border);
    border-left: 0;
  }

  .navbar__user {
    max-width: 100%;
  }
}

@media (max-width: 45rem) {
  .container {
    width: min(100% - 1.25rem, var(--container));
  }

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

  .grid--2 {
    grid-template-columns: 1fr;
  }

  .grid--3,
  .game-grid,
  .auth-layout,
  .home-hero,
  .error-page {
    grid-template-columns: 1fr;
  }

  .error-page {
    min-height: auto;
  }

  .error-page__code {
    font-size: 7rem;
  }

  .auth-layout {
    min-height: auto;
    gap: var(--space-8);
  }

  .auth-intro .feature-list {
    display: none;
  }

  .home-hero {
    min-height: auto;
  }

  .home-hero__visual {
    min-height: 16rem;
  }

  .home-hero__content h1 {
    font-size: clamp(2.2rem, 12vw, 3.25rem);
  }

  .page-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .page-heading,
  .game-page-heading,
  .professional-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .game-shell .game-session-bar {
    grid-template-columns: 1fr;
  }

  .game-card {
    min-height: 0;
  }

  .footer__inner {
    padding-block: var(--space-4);
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }

  .footer__center {
    display: none;
  }

  .list-row {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}