:root {
  --dark-wood: #5d4037;
  --taupe: #d7ccc8;
  --cream: #f5f5dc;
  --gold: #c19a6b;
  --near-black: #212121;
  --bg: var(--cream);
  --text: var(--near-black);
  --card: #ffffff;
  --link: var(--dark-wood);
  --accent: var(--gold);
  --header-text: var(--cream);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1a1816;
    --text: var(--cream);
    --card: #2d2723;
    --link: var(--taupe);
    --accent: var(--gold);
    --header-text: var(--cream);
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Open Sans Hebrew', 'Open Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-wrap: break-word;
  word-wrap: break-word;
}

h1, h2, h3, .logo {
  font-family: 'Heebo', sans-serif;
  line-height: 1.2;
}

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

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

.container {
  width: min(92%, 1100px);
  margin-inline: auto;
  padding-inline: 1rem;
}

.site-header {
  background: var(--dark-wood);
  color: var(--header-text);
  padding-block: 1rem;
}

.site-header .container {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--header-text);
  text-decoration: none;
  font-size: 1.4rem;
  font-weight: 700;
}

.logo svg {
  width: 2rem;
  height: 2rem;
  max-width: 100%;
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 0;
  color: var(--header-text);
  cursor: pointer;
  margin-inline-start: auto;
  padding: 0.75rem;
  touch-action: manipulation;
}

.nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
}

.nav-list a {
  color: var(--header-text);
  text-decoration: none;
  font-weight: 600;
  padding: 0.5rem 0;
  display: inline-block;
  min-height: 48px;
}

.nav-list a:hover,
.nav-list a[aria-current="page"] {
  border-block-end: 2px solid var(--gold);
}

main {
  min-height: 60vh;
}

.hero {
  position: relative;
  padding-block: 5rem;
  background: linear-gradient(135deg, var(--dark-wood), #3e2723);
  color: var(--cream);
  overflow: hidden;
}

.hero-pattern {
  position: absolute;
  inset: 0;
  opacity: 0.2;
  background-image:
    linear-gradient(45deg, rgba(255,255,255,0.08) 25%, transparent 25%, transparent 75%, rgba(255,255,255,0.08) 75%, rgba(255,255,255,0.08)),
    linear-gradient(45deg, rgba(255,255,255,0.08) 25%, transparent 25%, transparent 75%, rgba(255,255,255,0.08) 75%, rgba(255,255,255,0.08));
  background-size: 80px 80px;
  background-position: 0 0, 40px 40px;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero-img {
  border-radius: 12px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.35);
  max-height: 520px;
  object-fit: cover;
}

.hero h1 {
  font-size: clamp(2rem, 6vw, 3.5rem);
  margin-block-end: 1rem;
  font-weight: 900;
}

.hero p {
  font-size: 1.15rem;
  max-width: 50ch;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  background: var(--gold);
  color: var(--near-black);
  text-decoration: none;
  border-radius: 6px;
  font-weight: 700;
  font-family: 'Heebo', sans-serif;
  margin-block-start: 1rem;
  margin-inline-end: 0.75rem;
  border: 2px solid var(--gold);
  min-height: 48px;
  touch-action: manipulation;
}

.btn:hover {
  background: #a88455;
  border-color: #a88455;
}

.btn.secondary {
  background: transparent;
  color: var(--gold);
}

.btn.secondary:hover {
  background: rgba(255,255,255,0.08);
}

section {
  padding-block: 4rem;
}

section h2 {
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  margin-block-end: 1rem;
  color: var(--dark-wood);
}

@media (prefers-color-scheme: dark) {
  section h2 {
    color: var(--taupe);
  }
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  gap: 1.5rem;
  margin-block-start: 2rem;
}

.feature-card {
  background: var(--card);
  padding: 1.5rem;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
  border-block-start: 4px solid var(--gold);
}

.feature-card h3 {
  margin-block-start: 0;
  color: var(--dark-wood);
}

@media (prefers-color-scheme: dark) {
  .feature-card h3 {
    color: var(--taupe);
  }
}

.cta-section {
  background: var(--taupe);
  text-align: center;
}

@media (prefers-color-scheme: dark) {
  .cta-section {
    background: #2d2a26;
  }
}

.page-hero {
  background: var(--dark-wood);
  color: var(--cream);
  padding-block: 4rem;
}

.page-hero h1 {
  font-size: clamp(1.8rem, 5vw, 2.8rem);
  margin-block-end: 1rem;
}

.content-card {
  background: var(--card);
  padding: 1.75rem;
  border-radius: 10px;
  margin-block-end: 1.5rem;
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

.content-card h2 {
  margin-block-start: 0;
}

.rules-list,
.terms-list,
.tips-list,
.resources-list {
  padding-inline-start: 1.25rem;
}

.rules-list li,
.tips-list li,
.resources-list li {
  margin-block-end: 0.75rem;
}

.terms-list dt {
  font-weight: 700;
  color: var(--dark-wood);
  margin-block-start: 1rem;
}

@media (prefers-color-scheme: dark) {
  .terms-list dt {
    color: var(--taupe);
  }
}

.terms-list dd {
  margin-inline-start: 0;
  margin-block-start: 0.25rem;
}

.resources-grid {
  display: grid;
  gap: 1.5rem;
}

.puzzle-card {
  grid-column: 1 / -1;
  text-align: center;
}

.chess-board {
  direction: ltr;
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  width: min(100%, 320px);
  aspect-ratio: 1;
  border: 4px solid var(--dark-wood);
  margin-block: 1.5rem;
  margin-inline: auto;
  border-radius: 4px;
  overflow: hidden;
}

.square {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: clamp(1.6rem, 8vw, 2.2rem);
  user-select: none;
}

.square.light {
  background: var(--cream);
  color: var(--near-black);
}

.square.dark {
  background: var(--dark-wood);
  color: var(--cream);
}

.puzzle-solution {
  text-align: start;
  max-width: 50ch;
  margin-inline: auto;
}

.puzzle-solution summary {
  font-weight: 700;
  cursor: pointer;
  color: var(--dark-wood);
  touch-action: manipulation;
}

.site-footer {
  background: var(--near-black);
  color: var(--cream);
  padding-block: 2rem;
  text-align: center;
}

@media (max-width: 800px) {
  .hero {
    padding-block: 3rem;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .hero-img {
    order: -1;
    max-width: 100%;
    width: 100%;
    max-height: 40vh;
    margin-inline: auto;
  }

  .btn {
    width: 100%;
    margin-inline: 0;
  }

  .hero-copy .btn + .btn {
    margin-block-start: 0.75rem;
  }

  section {
    padding-block: 2.5rem;
  }

  .page-hero {
    padding-block: 2.5rem;
  }
}

@media (max-width: 700px) {
  .nav-toggle {
    display: block;
  }

  .site-nav {
    width: 100%;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    gap: 0.25rem;
    margin-block-start: 1rem;
  }

  .nav-list.open {
    display: flex;
  }

  .nav-list a {
    display: block;
    padding: 0.75rem;
    border-radius: 4px;
  }

  .nav-list a:hover,
  .nav-list a[aria-current="page"] {
    background: rgba(255,255,255,0.1);
    border: 0;
  }
}

@media (max-width: 480px) {
  .container {
    padding-inline: 0.75rem;
  }

  .feature-card,
  .content-card {
    padding: 1.25rem;
  }

  .logo {
    font-size: 1.25rem;
  }

  .logo svg {
    width: 1.75rem;
    height: 1.75rem;
  }
}