/* ---------- Slates · chalkboard theme ---------- */
:root {
  --slate-900: #1a2022;
  --slate-800: #242c2f;
  --slate-700: #2e3638;
  --slate-600: #3a4346;
  --chalk:     #f7f3e8;
  --chalk-dim: #cfc9b8;
  --wood:      #7a4f23;
  --wood-dark: #3b2410;
  --accent:    #ffd36b; /* warm chalk yellow */
  --accent-2:  #7ad3ff; /* chalk blue */
  --accent-3:  #ff9ab3; /* chalk pink */
  --accent-4:  #9bf09b; /* chalk green */
  --radius:    14px;
  --shadow:    0 10px 30px rgba(0,0,0,.35);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body {
  font-family: 'Patrick Hand', 'Comic Sans MS', system-ui, sans-serif;
  background-color: var(--slate-800);
  /* subtle chalk-dust texture */
  background-image:
    radial-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    radial-gradient(rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 3px 3px, 7px 7px;
  background-position: 0 0, 1px 2px;
  color: var(--chalk);
  font-size: 20px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: 'Caveat', 'Comic Sans MS', cursive;
  font-weight: 700;
  line-height: 1.1;
  margin: 0 0 .4em;
  color: var(--chalk);
}

h1 { font-size: clamp(2.4rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
h3 { font-size: 1.6rem; }

a { color: var(--accent); text-decoration: none; }
a:hover, a:focus { color: var(--chalk); text-decoration: underline wavy; }

.container {
  width: min(1100px, 92vw);
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  left: -9999px;
}
.skip-link:focus {
  left: 1rem;
  top: 1rem;
  background: var(--accent);
  color: var(--slate-900);
  padding: .5rem 1rem;
  border-radius: 8px;
  z-index: 100;
}

/* ---------- Header ---------- */
.site-header {
  background: linear-gradient(180deg, var(--wood) 0%, var(--wood-dark) 100%);
  border-bottom: 6px solid var(--wood-dark);
  box-shadow: 0 4px 0 rgba(0,0,0,.3), 0 10px 20px rgba(0,0,0,.3);
  position: sticky;
  top: 0;
  z-index: 10;
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: .75rem 0;
  flex-wrap: wrap;
}
.site-header__logo img {
  display: block;
  height: 60px;
  width: auto;
}
.site-header__nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
}
.site-header__nav a {
  color: var(--chalk);
  font-size: 1.35rem;
  padding: .35rem .25rem;
  border-bottom: 3px solid transparent;
  transition: border-color .15s ease;
}
.site-header__nav a:hover,
.site-header__nav a:focus {
  border-bottom-color: var(--accent);
  text-decoration: none;
}

/* ---------- Hero ---------- */
.hero {
  padding: 4rem 0 2.5rem;
  text-align: center;
  position: relative;
}
.hero__eyebrow {
  display: inline-block;
  font-size: 1.2rem;
  color: var(--chalk-dim);
  letter-spacing: .15em;
  text-transform: uppercase;
  border: 2px dashed var(--chalk-dim);
  padding: .25rem 1rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}
.hero h1 {
  color: var(--chalk);
}
.hero h1 .accent-y { color: var(--accent); }
.hero h1 .accent-b { color: var(--accent-2); }
.hero h1 .accent-p { color: var(--accent-3); }
.hero p {
  max-width: 40ch;
  margin: .5rem auto 0;
  font-size: 1.3rem;
  color: var(--chalk-dim);
}

/* ---------- Grade filter ---------- */
.filter-bar {
  display: flex;
  justify-content: center;
  gap: .75rem;
  margin: 2.5rem 0 1.5rem;
  flex-wrap: wrap;
}
.filter-bar__btn {
  background: transparent;
  color: var(--chalk);
  border: 2px solid var(--chalk-dim);
  border-radius: 999px;
  padding: .5rem 1.4rem;
  font-family: inherit;
  font-size: 1.2rem;
  cursor: pointer;
  transition: all .15s ease;
}
.filter-bar__btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.filter-bar__btn[aria-pressed="true"] {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--slate-900);
  font-weight: 700;
}

/* ---------- Games grid ---------- */
.games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.5rem;
  padding: 1rem 0 3rem;
  list-style: none;
  margin: 0;
}
.game-card {
  background: linear-gradient(180deg, var(--slate-700), var(--slate-800));
  border: 2px solid rgba(255,255,255,.08);
  border-radius: var(--radius);
  padding: 1.5rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: .5rem;
  color: var(--chalk);
  box-shadow: var(--shadow);
  position: relative;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.game-card:hover,
.game-card:focus-within {
  transform: translateY(-4px) rotate(-.4deg);
  border-color: var(--accent);
  text-decoration: none;
}
.game-card__icon {
  width: 64px;
  height: 64px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-family: 'Caveat', cursive;
  font-size: 2.2rem;
  color: var(--slate-900);
  margin-bottom: .25rem;
  box-shadow: 0 4px 0 rgba(0,0,0,.3);
}
.game-card:nth-child(4n+1) .game-card__icon { background: var(--accent); }
.game-card:nth-child(4n+2) .game-card__icon { background: var(--accent-2); }
.game-card:nth-child(4n+3) .game-card__icon { background: var(--accent-3); }
.game-card:nth-child(4n+4) .game-card__icon { background: var(--accent-4); }

.game-card h3 {
  font-family: 'Caveat', cursive;
  font-size: 2rem;
  margin: 0;
}
.game-card p {
  margin: 0;
  color: var(--chalk-dim);
  font-size: 1.05rem;
  flex: 1;
}
.game-card__grades {
  display: flex;
  gap: .35rem;
  margin-top: .5rem;
}
.grade-pill {
  font-size: .85rem;
  padding: .15rem .65rem;
  border: 1px solid var(--chalk-dim);
  border-radius: 999px;
  color: var(--chalk-dim);
}
.game-card__badge {
  position: absolute;
  top: .75rem;
  right: .75rem;
  background: var(--slate-900);
  color: var(--chalk-dim);
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  padding: .2rem .55rem;
  border-radius: 999px;
  border: 1px solid var(--chalk-dim);
}
.game-card.is-hidden { display: none; }

/* ---------- About ---------- */
.about {
  padding: 3rem 0;
  border-top: 2px dashed rgba(255,255,255,.1);
  border-bottom: 2px dashed rgba(255,255,255,.1);
  text-align: center;
}
.about p {
  max-width: 55ch;
  margin: .5rem auto 0;
  color: var(--chalk-dim);
  font-size: 1.15rem;
}

/* ---------- Footer ---------- */
.site-footer {
  background: linear-gradient(180deg, var(--slate-900), #10151680);
  border-top: 6px solid var(--wood-dark);
  padding: 2rem 0;
  margin-top: 2rem;
  text-align: center;
}
.site-footer__brand {
  font-family: 'Caveat', cursive;
  font-size: 1.6rem;
  color: var(--chalk);
  margin: 0 0 .25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .75rem;
}
.site-footer__brand a {
  color: var(--accent);
}
.chalk-line {
  flex: 0 0 60px;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--chalk-dim) 0 6px, transparent 6px 10px);
  opacity: .6;
}
.site-footer__meta {
  margin: 0;
  color: var(--chalk-dim);
  font-size: .95rem;
}

/* ---------- Responsive tweaks ---------- */
@media (max-width: 620px) {
  .site-header__inner { justify-content: center; }
  .site-header__nav ul { gap: 1rem; }
  .site-header__nav a { font-size: 1.15rem; }
  .hero { padding: 2.5rem 0 1.5rem; }
}