:root {
  --primary: #ff6b6b;
  --primary-dark: #ff4d6d;
  --secondary: #118ab2;
  --accent: #ffd166;
  --background: #fdf9ff;
  --surface: #ffffff;
  --text: #1d1c1f;
  --muted: #5e5d63;
  --shadow: 0 24px 45px -30px rgba(31, 29, 43, 0.6);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --max-width: 1080px;
  font-size: 16px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Outfit", "Segoe UI", -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at top left, rgba(255, 246, 233, 0.6), transparent 45%),
    radial-gradient(circle at top right, rgba(218, 253, 255, 0.6), transparent 48%),
    radial-gradient(circle at bottom, rgba(255, 234, 248, 0.5), transparent 50%), var(--background);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

.background-canvas {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
}

.site-shell {
  position: relative;
  z-index: 1;
}

.anchor-top {
  position: absolute;
  top: 0;
  left: 0;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  margin: 0;
  padding: 0;
  border: 0;
  scroll-margin-top: 96px;
}

a {
  color: var(--secondary);
  text-decoration: none;
  font-weight: 500;
}

a:hover,
 a:focus {
  text-decoration: underline;
}

main {
  display: flex;
  flex-direction: column;
  gap: 6rem;
  padding: 6rem 1.5rem 4rem;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem clamp(1rem, 3vw, 2.75rem);
  position: sticky;
  top: 0;
  z-index: 10;
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(17, 138, 178, 0.08);
}

.site-header__logo {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--text);
}

.site-header__logo span[aria-hidden="true"] {
  font-size: 1.5rem;
}

.site-header__tagline {
  margin: 0.2rem 0 0;
  font-size: 0.9rem;
  color: var(--muted);
}

.site-header__nav {
  display: flex;
  align-items: center;
  gap: clamp(0.8rem, 2vw, 1.5rem);
}

.site-header__nav a {
  font-weight: 500;
  color: var(--text);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.4rem;
  border-radius: 999px;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
  cursor: pointer;
}

.button:focus-visible {
  outline: 2px solid var(--secondary);
  outline-offset: 3px;
}

.button--primary {
  background: linear-gradient(120deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  box-shadow: var(--shadow);
}

.button--primary:hover {
  transform: translateY(-2px);
}

.button--secondary {
  background: rgba(17, 138, 178, 0.12);
  color: var(--secondary);
  border: 1px solid rgba(17, 138, 178, 0.3);
}

.button--secondary:hover {
  transform: translateY(-1px);
}

.button--ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid rgba(29, 28, 31, 0.15);
}

.button--ghost:hover {
  background: rgba(0, 0, 0, 0.04);
}

.hero {
  display: grid;
  gap: 3rem;
  align-items: center;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  max-width: var(--max-width);
  width: min(100%, var(--max-width));
  margin: 0 auto;
}

.hero__content h1 {
  font-size: clamp(2.6rem, 5vw, 3.4rem);
  line-height: 1.1;
  margin-bottom: 1rem;
}

.hero__lead {
  font-size: clamp(1.1rem, 2.2vw, 1.3rem);
  color: var(--muted);
  margin-bottom: 1.75rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.hero__link {
  font-weight: 500;
  color: var(--secondary);
}

.hero__details {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.75rem;
  color: var(--muted);
}

.hero__play {
  background: rgba(255, 255, 255, 0.9);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 3vw, 2.25rem);
  box-shadow: var(--shadow);
}

.hero__play h2 {
  margin: 0 0 0.5rem;
  font-size: 1.6rem;
}

.hero__game-subtitle {
  margin: 0 0 1.5rem;
  color: var(--muted);
}

.mini-game__feedback {
  margin: 0;
  font-weight: 600;
  color: var(--secondary);
}

.section {
  max-width: var(--max-width);
  width: min(100%, var(--max-width));
  margin: 0 auto;
  display: grid;
  gap: 2.5rem;
}

.section--accent {
  background: linear-gradient(130deg, rgba(255, 241, 219, 0.8), rgba(215, 255, 252, 0.7));
  padding: 3.5rem clamp(1.5rem, 4vw, 3rem);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.section__intro {
  max-width: 680px;
}

.section__intro h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(2rem, 4vw, 2.6rem);
}

.section__intro p {
  margin: 0;
  color: var(--muted);
}

.card-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.card {
  padding: 1.75rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.85);
  box-shadow: 0 15px 35px -25px rgba(31, 29, 43, 0.4);
  backdrop-filter: blur(10px);
}

.card h3 {
  margin-top: 0;
  font-size: 1.25rem;
}

.download-options {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.download-details {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--muted);
}

.donate {
  display: inline-flex;
  margin-top: 1.5rem;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.video-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 24px 45px -32px rgba(17, 138, 178, 0.55);
  background: rgba(255, 255, 255, 0.82);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.video-card:hover,
.video-card:focus-within {
  transform: translateY(-4px);
  box-shadow: 0 30px 60px -34px rgba(17, 138, 178, 0.65);
}

.video-card__link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.video-card__link img {
  width: 100%;
  display: block;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(1.08) contrast(1.02);
}

.video-card__overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: radial-gradient(circle, rgba(0, 0, 0, 0.18) 0%, rgba(0, 0, 0, 0.32) 60%, rgba(0, 0, 0, 0.4) 100%);
  opacity: 0;
  transition: opacity 0.25s ease;
}

.video-card__play {
  display: inline-grid;
  place-items: center;
  width: 68px;
  height: 68px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.88);
  color: var(--primary);
  font-size: 2rem;
  font-weight: 600;
  box-shadow: 0 18px 36px -22px rgba(31, 29, 43, 0.6);
}

.video-card:hover .video-card__overlay,
.video-card:focus-within .video-card__overlay {
  opacity: 1;
}


.gallery {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.gallery figure {
  margin: 0;
  background: rgba(255, 255, 255, 0.8);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 18px 40px -32px rgba(31, 29, 43, 0.5);
}

.gallery img {
  width: 100%;
  display: block;
}

.gallery figcaption {
  padding: 1rem 1.25rem 1.3rem;
  color: var(--muted);
}

.about {
  display: grid;
  gap: 1.2rem;
  color: var(--muted);
}

.about kbd {
  background: rgba(29, 28, 31, 0.08);
  padding: 0.15rem 0.5rem;
  border-radius: 6px;
  font-size: 0.95rem;
  border: 1px solid rgba(29, 28, 31, 0.12);
}

.site-footer {
  background: rgba(29, 28, 31, 0.06);
  padding: 2rem 1.5rem 2.5rem;
  margin-top: 4rem;
}

.site-footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  color: var(--muted);
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
}

@media (max-width: 780px) {
  .site-header {
    flex-direction: column;
    gap: 0.8rem;
    position: sticky;
  }

  .site-header__nav {
    flex-wrap: wrap;
    justify-content: center;
  }

  main {
    padding-top: 4.5rem;
  }

  .hero__play {
    order: -1;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}