:root {
  color-scheme: light dark;
  --ivory: #f6f0e6;
  --paper: #fffdfc;
  --ink: #292621;
  --ink-soft: #5e584f;
  --coral: #d96c5f;
  --coral-strong: #a94940;
  --burgundy: #8c4744;
  --gold: #c59b55;
  --sage: #66806c;
  --charcoal: #191a19;
  --line: rgba(41, 38, 33, 0.13);
  --surface: rgba(255, 253, 252, 0.82);
  --shadow: 0 24px 70px rgba(41, 38, 33, 0.11);
  --radius-small: 14px;
  --radius-medium: 24px;
  --radius-large: 36px;
  --content: 1160px;
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
  --font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 91% 8%, rgba(197, 155, 85, 0.14), transparent 24rem),
    radial-gradient(circle at 3% 42%, rgba(217, 108, 95, 0.1), transparent 22rem),
    var(--ivory);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.62;
  text-rendering: optimizeLegibility;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: var(--burgundy);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--coral-strong);
}

:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 4px;
  border-radius: 4px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 10px;
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-150%);
}

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

.site-header {
  position: sticky;
  z-index: 50;
  top: 0;
  border-bottom: 1px solid var(--line);
  background: rgba(246, 240, 230, 0.9);
  backdrop-filter: blur(20px);
}

.header-inner,
.footer-inner,
.section-inner {
  width: min(calc(100% - 40px), var(--content));
  margin: 0 auto;
}

.header-inner {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 28px;
  min-height: 78px;
}

.brand-link,
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 760;
  letter-spacing: -0.04em;
  text-decoration: none;
}

.brand-link img,
.footer-brand img {
  width: 38px;
  height: 38px;
}

.primary-nav {
  display: flex;
  justify-content: center;
  gap: 28px;
  min-width: 0;
}

.primary-nav a {
  position: relative;
  color: var(--ink-soft);
  font-size: 0.92rem;
  font-weight: 650;
  text-decoration: none;
  white-space: nowrap;
}

.primary-nav a[aria-current="page"] {
  color: var(--ink);
}

.primary-nav a[aria-current="page"]::after {
  position: absolute;
  right: 0;
  bottom: -8px;
  left: 0;
  height: 3px;
  border-radius: 2px;
  background: var(--coral);
  content: "";
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 11px 21px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 720;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
}

.button-primary {
  background: var(--ink);
  color: var(--paper);
  box-shadow: 0 9px 25px rgba(41, 38, 33, 0.15);
}

.button-primary:hover {
  background: #454038;
  color: var(--paper);
}

.button-secondary {
  border-color: var(--line);
  background: var(--surface);
  color: var(--ink);
}

.button-disabled {
  cursor: default;
  opacity: 0.72;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--burgundy);
  font-size: 0.78rem;
  font-weight: 780;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin-top: 0;
  color: var(--ink);
  font-family: var(--font-display);
  line-height: 1.08;
  text-wrap: balance;
}

h1 {
  margin-bottom: 24px;
  font-size: clamp(3rem, 7vw, 6.2rem);
  font-weight: 760;
  letter-spacing: -0.068em;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 4.5vw, 3.75rem);
  font-weight: 730;
  letter-spacing: -0.052em;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.35rem;
  font-weight: 720;
  letter-spacing: -0.025em;
}

p {
  margin-top: 0;
}

.lede {
  max-width: 700px;
  color: var(--ink-soft);
  font-size: clamp(1.12rem, 2vw, 1.35rem);
}

.hero {
  overflow: hidden;
  padding: clamp(72px, 10vw, 138px) 0 104px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(310px, 0.85fr);
  align-items: center;
  gap: clamp(52px, 8vw, 112px);
}

.hero-copy {
  min-width: 0;
}

.hero-icon-wrap {
  position: relative;
  width: min(100%, 430px);
  margin: 0 auto;
}

.hero-icon-wrap::before,
.hero-icon-wrap::after {
  position: absolute;
  z-index: -1;
  border-radius: 50%;
  content: "";
}

.hero-icon-wrap::before {
  inset: -16% -20% 25% 30%;
  background: rgba(197, 155, 85, 0.2);
}

.hero-icon-wrap::after {
  inset: 48% 50% -18% -20%;
  background: rgba(217, 108, 95, 0.15);
}

.hero-icon {
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  border-radius: 24%;
  box-shadow: var(--shadow);
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 34px;
}

.trust-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink-soft);
  font-size: 0.88rem;
  font-weight: 630;
}

.trust-chip::before {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--sage);
  content: "";
}

.section {
  padding: clamp(78px, 10vw, 126px) 0;
}

.section-tint {
  border-block: 1px solid var(--line);
  background: rgba(255, 253, 252, 0.52);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 48px;
}

.gameplay-grid,
.split-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  align-items: center;
  gap: clamp(44px, 8vw, 110px);
}

.board-shell {
  padding: clamp(22px, 4vw, 42px);
  border: 1px solid rgba(41, 38, 33, 0.09);
  border-radius: var(--radius-large);
  background: var(--paper);
  box-shadow: var(--shadow);
}

.board-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
  color: var(--ink-soft);
  font-size: 0.86rem;
  font-weight: 680;
}

.difficulty-pill {
  padding: 5px 10px;
  border-radius: 999px;
  background: rgba(217, 108, 95, 0.13);
  color: var(--burgundy);
}

.board-preview {
  display: grid;
  overflow: hidden;
  aspect-ratio: 1;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line);
  border-radius: 20px;
  background:
    linear-gradient(to right, transparent calc(25% - 1px), var(--line) 25%, transparent calc(25% + 1px), transparent calc(50% - 1px), var(--line) 50%, transparent calc(50% + 1px), transparent calc(75% - 1px), var(--line) 75%, transparent calc(75% + 1px)),
    linear-gradient(to bottom, transparent calc(25% - 1px), var(--line) 25%, transparent calc(25% + 1px), transparent calc(50% - 1px), var(--line) 50%, transparent calc(50% + 1px), transparent calc(75% - 1px), var(--line) 75%, transparent calc(75% + 1px)),
    #faf6ef;
}

.board-cell {
  position: relative;
  aspect-ratio: 1;
}

.board-cell.path::before {
  position: absolute;
  z-index: 2;
  top: 50%;
  left: 50%;
  width: 24%;
  height: 24%;
  border-radius: 50%;
  background: var(--coral);
  content: "";
  transform: translate(-50%, -50%);
}

.board-cell.path::after {
  position: absolute;
  z-index: 1;
  top: calc(50% - 5px);
  left: 50%;
  width: calc(100% + 1px);
  height: 10px;
  background: var(--coral);
  content: "";
  transform-origin: left center;
}

.board-cell.down::after {
  transform: rotate(90deg);
}

.board-cell.left::after {
  transform: rotate(180deg);
}

.board-cell.up::after {
  transform: rotate(-90deg);
}

.board-cell.end::after {
  display: none;
}

.checkpoint {
  position: absolute;
  z-index: 3;
  top: 50%;
  left: 50%;
  display: grid;
  width: 38%;
  aspect-ratio: 1;
  place-items: center;
  border: 3px solid var(--coral);
  border-radius: 50%;
  background: var(--paper);
  color: var(--ink);
  font-size: clamp(0.72rem, 2.4vw, 1.1rem);
  font-weight: 800;
  line-height: 1;
  transform: translate(-50%, -50%);
}

.rule-list,
.check-list {
  display: grid;
  gap: 18px;
  padding: 0;
  list-style: none;
}

.rule-list {
  counter-reset: rules;
}

.rule-list li,
.check-list li {
  position: relative;
  padding-left: 52px;
}

.rule-list li {
  counter-increment: rules;
}

.rule-list li::before,
.check-list li::before {
  position: absolute;
  top: 1px;
  left: 0;
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 50%;
  background: var(--ink);
  color: var(--paper);
  font-size: 0.82rem;
  font-weight: 760;
  content: counter(rules);
}

.check-list li::before {
  background: rgba(102, 128, 108, 0.16);
  color: var(--sage);
  content: "✓";
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.feature-card,
.daily-card,
.info-card {
  min-width: 0;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius-medium);
  background: var(--surface);
  box-shadow: 0 12px 42px rgba(41, 38, 33, 0.06);
}

.feature-card .card-index {
  display: inline-grid;
  width: 38px;
  height: 38px;
  margin-bottom: 34px;
  place-items: center;
  border-radius: 50%;
  background: rgba(217, 108, 95, 0.14);
  color: var(--burgundy);
  font-size: 0.82rem;
  font-weight: 790;
}

.feature-card p,
.daily-card p,
.info-card p {
  margin-bottom: 0;
  color: var(--ink-soft);
}

.daily-strip {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

.daily-card {
  padding: 20px;
}

.daily-card strong,
.daily-card span {
  display: block;
}

.daily-card strong {
  margin-bottom: 22px;
  font-size: 1.45rem;
}

.daily-card span {
  color: var(--ink-soft);
  font-size: 0.82rem;
}

.daily-card:nth-child(5) {
  border-color: rgba(197, 155, 85, 0.5);
  background: rgba(197, 155, 85, 0.12);
}

.quote-card {
  padding: clamp(30px, 5vw, 58px);
  border-radius: var(--radius-large);
  background: var(--ink);
  color: var(--paper);
}

.quote-card h2,
.quote-card h3 {
  color: var(--paper);
}

.quote-card p {
  color: rgba(255, 253, 252, 0.72);
}

.quote-card .button-secondary {
  border-color: rgba(255, 253, 252, 0.28);
  background: rgba(255, 253, 252, 0.08);
  color: var(--paper);
}

.faq-list {
  display: grid;
  gap: 12px;
  max-width: 860px;
}

.faq-list details {
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  background: var(--surface);
}

.faq-list summary {
  min-height: 58px;
  padding: 17px 54px 17px 20px;
  cursor: pointer;
  font-weight: 700;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  float: right;
  margin-right: -32px;
  color: var(--coral-strong);
  content: "+";
  font-size: 1.3rem;
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list details p {
  padding: 0 20px 20px;
  color: var(--ink-soft);
}

.page-hero {
  padding: clamp(72px, 10vw, 120px) 0 58px;
}

.page-hero h1 {
  max-width: 900px;
  font-size: clamp(2.8rem, 7vw, 5.4rem);
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(190px, 0.28fr) minmax(0, 0.72fr);
  align-items: start;
  gap: clamp(42px, 8vw, 110px);
  padding-bottom: 110px;
}

.article-nav {
  position: sticky;
  top: 110px;
  display: grid;
  gap: 8px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  background: var(--surface);
}

.article-nav a {
  padding: 7px 9px;
  border-radius: 8px;
  color: var(--ink-soft);
  font-size: 0.88rem;
  font-weight: 620;
  text-decoration: none;
}

.article-nav a:hover {
  background: rgba(217, 108, 95, 0.1);
  color: var(--ink);
}

.prose {
  min-width: 0;
  max-width: 780px;
}

.prose section {
  padding-top: 22px;
  margin-bottom: 58px;
  scroll-margin-top: 100px;
}

.prose h2 {
  font-size: clamp(1.8rem, 4vw, 2.65rem);
}

.prose h3 {
  margin-top: 32px;
}

.prose li + li {
  margin-top: 8px;
}

.prose code {
  padding: 0.12em 0.35em;
  border-radius: 6px;
  background: rgba(41, 38, 33, 0.08);
  font-size: 0.9em;
}

.notice {
  padding: 20px 22px;
  border-left: 4px solid var(--gold);
  border-radius: 0 var(--radius-small) var(--radius-small) 0;
  background: rgba(197, 155, 85, 0.12);
}

.support-grid,
.asset-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.asset-card {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  align-items: center;
  gap: 22px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-medium);
  background: var(--surface);
}

.asset-card img {
  width: 110px;
  max-height: 110px;
  object-fit: contain;
}

.asset-card p {
  color: var(--ink-soft);
}

.asset-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.9rem;
  font-weight: 680;
}

.color-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.swatch {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  background: var(--surface);
}

.swatch-color {
  height: 78px;
}

.swatch-label {
  padding: 11px;
  font-size: 0.78rem;
  font-weight: 680;
}

.swatch-ivory {
  background: #f6f0e6;
}

.swatch-ink {
  background: #292621;
}

.swatch-coral {
  background: #d96c5f;
}

.swatch-sage {
  background: #66806c;
}

.site-footer {
  padding: 58px 0 26px;
  border-top: 1px solid var(--line);
  background: rgba(255, 253, 252, 0.55);
}

.footer-inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 40px;
}

.footer-inner p {
  margin: 8px 0 0;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.footer-inner nav {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-inner nav a {
  color: var(--ink-soft);
  font-size: 0.9rem;
  font-weight: 650;
}

.copyright {
  width: min(calc(100% - 40px), var(--content));
  margin: 45px auto 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.78rem;
}

.not-found {
  display: grid;
  min-height: 65vh;
  place-items: center;
  padding: 90px 20px;
  text-align: center;
}

.not-found-content {
  max-width: 680px;
}

.not-found-code {
  margin: 0;
  color: var(--coral);
  font-size: clamp(6rem, 19vw, 13rem);
  font-weight: 800;
  letter-spacing: -0.08em;
  line-height: 0.8;
}

@media (max-width: 900px) {
  .header-inner {
    grid-template-columns: auto 1fr;
    gap: 14px;
    padding: 12px 0;
  }

  .header-inner > .button {
    display: none;
  }

  .primary-nav {
    justify-content: flex-end;
    gap: 18px;
    overflow-x: auto;
  }

  .primary-nav a:first-child {
    display: none;
  }

  .hero-grid,
  .gameplay-grid,
  .split-grid {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    max-width: 760px;
  }

  .hero-icon-wrap {
    width: min(72vw, 390px);
  }

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

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

  .article-layout {
    grid-template-columns: 1fr;
  }

  .article-nav {
    position: static;
    display: flex;
    overflow-x: auto;
  }

  .article-nav a {
    white-space: nowrap;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 16px;
  }

  .header-inner,
  .footer-inner,
  .section-inner,
  .copyright {
    width: min(calc(100% - 28px), var(--content));
  }

  .site-header {
    position: static;
  }

  .header-inner {
    grid-template-columns: 1fr;
  }

  .brand-link {
    justify-content: center;
    min-height: 44px;
  }

  .primary-nav {
    justify-content: flex-start;
    padding: 5px 2px 8px;
  }

  .primary-nav a,
  .footer-inner nav a {
    display: inline-flex;
    min-height: 44px;
    align-items: center;
    padding: 8px 4px;
  }

  .primary-nav a[aria-current="page"]::after {
    bottom: 2px;
  }

  .primary-nav a:first-child {
    display: inline-flex;
  }

  .hero {
    padding-top: 62px;
  }

  .hero-grid {
    gap: 58px;
  }

  .card-grid,
  .support-grid,
  .asset-grid,
  .daily-strip {
    grid-template-columns: 1fr;
  }

  .daily-card {
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: center;
    gap: 18px;
  }

  .daily-card strong {
    margin: 0;
  }

  .asset-card {
    grid-template-columns: 80px minmax(0, 1fr);
  }

  .asset-card img {
    width: 80px;
    max-height: 80px;
  }

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

  .footer-inner {
    flex-direction: column;
  }

  .footer-brand {
    min-height: 44px;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --ivory: #191a19;
    --paper: #242622;
    --ink: #fffdfc;
    --ink-soft: #c9c2b8;
    --coral: #e98073;
    --coral-strong: #f39a8e;
    --burgundy: #f0a198;
    --gold: #d5b678;
    --sage: #9bb5a1;
    --line: rgba(255, 253, 252, 0.14);
    --surface: rgba(36, 38, 34, 0.82);
    --shadow: 0 24px 70px rgba(0, 0, 0, 0.3);
  }

  body {
    background:
      radial-gradient(circle at 91% 8%, rgba(197, 155, 85, 0.1), transparent 24rem),
      radial-gradient(circle at 3% 42%, rgba(217, 108, 95, 0.09), transparent 22rem),
      var(--ivory);
  }

  .site-header {
    background: rgba(25, 26, 25, 0.9);
  }

  .board-preview {
    background:
      linear-gradient(to right, transparent calc(25% - 1px), var(--line) 25%, transparent calc(25% + 1px), transparent calc(50% - 1px), var(--line) 50%, transparent calc(50% + 1px), transparent calc(75% - 1px), var(--line) 75%, transparent calc(75% + 1px)),
      linear-gradient(to bottom, transparent calc(25% - 1px), var(--line) 25%, transparent calc(25% + 1px), transparent calc(50% - 1px), var(--line) 50%, transparent calc(50% + 1px), transparent calc(75% - 1px), var(--line) 75%, transparent calc(75% + 1px)),
      #20211f;
  }

  .section-tint,
  .site-footer {
    background: rgba(36, 38, 34, 0.44);
  }

  .hero-icon {
    filter: brightness(0.88) saturate(0.96);
  }
}

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

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

@media (forced-colors: active) {
  .trust-chip::before,
  .board-cell.path::before,
  .board-cell.path::after {
    forced-color-adjust: none;
  }
}