:root {
  --color-bg: #fffdf9;
  --color-text: #2b2b2b;
  --color-muted: #6f6a67; /* darkened from #8a8a8a to meet 4.5:1 contrast on light bg */
  --color-accent: #b56b6c; /* Dusty Rose — final chosen accent color */
  --color-logo-accent: #800000; /* matches the "uko" portion of the Mfuko logo */
  --color-card-bg: #ffffff;
  --color-border: #ece7de;
  --max-width: 1100px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #1c1a19;
    --color-text: #f2ede9;
    --color-muted: #b3a9a3;
    --color-card-bg: #2a2624;
    --color-border: #3d3835;
    /* #800000 only reaches ~1.58:1 against the dark background (fails WCAG
       AA); use a lighter maroon in dark mode so it stays legible. */
    --color-logo-accent: #c1666b;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Nunito", system-ui, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ---------- Header ---------- */
.site-header {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
}

.social-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 1.05rem;
  color: var(--color-muted);
}

.social-icon {
  display: block;
  height: 24px;
  width: auto;
}

/* X requires white logo on dark backgrounds, black on light — swap based on mode */
.icon-for-dark {
  display: none;
}

@media (prefers-color-scheme: dark) {
  .icon-for-light {
    display: none;
  }
  .icon-for-dark {
    display: block;
  }
}

.social-links a:hover {
  color: var(--color-accent);
}

.logo {
  display: inline-flex;
  background: #fff;
  padding: 0.4rem 0.6rem;
  border-radius: 10px;
}

.logo img {
  display: block;
}

/* Hamburger button — hidden by default, only shown on small screens */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.hamburger span {
  display: block;
  height: 3px;
  width: 100%;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

@media (max-width: 640px) {
  .hamburger {
    display: flex;
  }

  .social-links {
    display: none;
    position: absolute;
    top: 4.5rem;
    right: 1rem;
    flex-direction: column;
    align-items: flex-end;
    gap: 1.5rem;
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    z-index: 10;
  }

  .social-links.is-open {
    display: flex;
  }

  .site-header {
    position: relative;
  }
}

/* ---------- Hero ---------- */
.hero {
  max-width: var(--max-width);
  margin: 0 auto;
  text-align: center;
  padding: 3.5rem 1.5rem 3rem;
}

.hero h1 {
  font-size: clamp(6rem, 22vw, 11rem);
  font-weight: 800;
  margin: 0 0 1rem;
  letter-spacing: -0.02em;
}

.logo-accent {
  color: var(--color-logo-accent);
}

.hero .tagline {
  font-family: "Caveat", cursive;
  font-weight: 700;
  font-size: clamp(2.75rem, 8.5vw, 4.5rem);
  color: var(--color-muted);
  margin: 0 0 3rem;
  line-height: 1.2;
}

.explore-btn {
  display: inline-block;
  padding: 1.5rem 3.5rem;
  border: 2px solid var(--color-accent);
  border-radius: 999px;
  font-weight: 700;
  font-size: 1.75rem;
  transition: background 0.15s ease, color 0.15s ease;
}

.explore-btn:hover {
  background: var(--color-accent);
  color: #fff;
}

/* ---------- Cards ---------- */
.cards {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 1.5rem 4rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.75rem;
  scroll-margin-top: 1.5rem;
}

.card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: 2.5rem 2rem;
  min-height: 260px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}

.card h2 {
  font-size: 1.5rem;
  margin: 0 0 0.6rem;
}

.card p {
  margin: 0;
  color: var(--color-accent);
  font-family: "Caveat", cursive;
  font-weight: 700;
  font-size: 1.35rem;
}

.card--disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.card--disabled:hover {
  transform: none;
  box-shadow: none;
}

@media (max-width: 480px) {
  .site-header {
    padding: 1rem;
  }
  .hero {
    padding: 2.5rem 1rem 2rem;
  }
}