:root {
  --color-background: #000000;
  --color-foreground: #ffffff;
  --color-muted: #f0f0f0;
  --color-accent: #449f60;
}

body {
  font-family: 'Poppins', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: var(--color-muted);
  color: #141414;
}

header {
  position: relative;
  z-index: 50;
}

[data-menu-button] {
  transition: background-color 200ms ease, color 200ms ease, border-color 200ms ease;
}

[data-menu-button]:hover,
[data-menu-button]:focus-visible,
[data-menu-button][aria-expanded="true"] {
  background-color: rgba(68, 159, 96, 0.18);
  border-color: rgba(68, 159, 96, 0.5);
  color: var(--color-accent);
}

[data-overlay] {
  pointer-events: none;
  z-index: 40;
}

[data-overlay]:not(.hidden) {
  pointer-events: auto;
}

.font-display {
  font-family: 'League Gothic', 'Poppins', sans-serif;
  letter-spacing: 0.05em;
}

.hero-overlay::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.72), rgba(68, 159, 96, 0.65));
  mix-blend-mode: multiply;
  pointer-events: none;
}

.hero-overlay img {
  object-fit: cover;
}

.transition-block {
  position: relative;
  width: 100%;
  margin-top: -3rem;
  line-height: 0;
  pointer-events: none;
}

.transition-block svg {
  display: block;
  width: 100%;
  height: auto;
  filter: drop-shadow(0 -12px 28px rgba(0, 0, 0, 0.18));
}

@media (max-width: 640px) {
  .transition-block {
    margin-top: -2rem;
  }
}

@media (min-width: 1024px) {
  .transition-block {
    margin-top: -4rem;
  }
}

.section-card {
  background-color: #ffffff;
  border-radius: 1rem;
  box-shadow: 0 25px 40px -25px rgba(20, 20, 20, 0.35);
}

.section-card--dark {
  background-color: #000000;
  color: #ffffff;
}

.section-card--dark a {
  color: var(--color-accent);
}

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

@font-face {
  font-family: 'League Gothic';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('https://fonts.gstatic.com/s/leaguegothic/v9/CSRg4x8UC4p2Ql0Xv6A.woff2') format('woff2');
}

@media (max-width: 1023px) {
  [data-nav-mobile] {
    position: fixed;
    top: var(--mobile-nav-top, 76px);
    right: 0;
    left: 0;
    z-index: 60;
    border-top: 1px solid rgba(255, 255, 255, 0.18);
    background: rgba(0, 0, 0, 0.92);
    backdrop-filter: blur(14px);
    box-shadow: 0 18px 40px -20px rgba(0, 0, 0, 0.6);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 180ms ease, transform 220ms ease;
  }

  [data-nav-mobile].mobile-nav-open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  [data-nav-mobile] .mobile-nav__link {
    color: #ffffff;
    font-weight: 600;
    letter-spacing: 0.02em;
    text-shadow: 0 0 12px rgba(255, 255, 255, 0.55);
    transition: background-color 150ms ease-out;
  }

  [data-nav-mobile] .mobile-nav__link:hover,
  [data-nav-mobile] .mobile-nav__link:focus-visible {
    background-color: rgba(255, 255, 255, 0.22);
    color: #ffffff;
  }

  [data-nav-mobile] .mobile-nav__link:active {
    background-color: rgba(68, 159, 96, 0.25);
    color: #ffffff;
  }
}