:root {
  color-scheme: light;
  --ink: #10213f;
  --muted: #5f6f87;
  --canvas: #ffffff;
  --canvas-deep: #f7f9fd;
  --surface: #f0f5ff;
  --line: #dfe6f1;
  --blue: #2563eb;
  --violet: #7056e8;
  --gold: #eeb84f;
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--canvas);
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    radial-gradient(circle at 78% 7%, rgba(62, 114, 246, 0.09), transparent 27rem),
    linear-gradient(180deg, var(--canvas) 0%, var(--canvas-deep) 100%);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-underline-offset: 0.2em;
}

a:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 4px;
  border-radius: 4px;
}

.site-header,
main,
footer {
  width: min(calc(100% - 48px), var(--max-width));
  margin-inline: auto;
}

.site-header {
  min-height: 96px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-size: 1.2rem;
  font-weight: 760;
  letter-spacing: -0.025em;
  text-decoration: none;
}

.brand-mark {
  width: 35px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  color: #10213f;
  background: linear-gradient(145deg, var(--gold), #ffbd69);
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 900;
  box-shadow: 0 8px 24px rgba(213, 159, 45, 0.18);
}

nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

nav a {
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 650;
  text-decoration: none;
  transition: color 160ms ease, border-color 160ms ease, background 160ms ease;
}

nav a:hover,
nav a[aria-current="page"] {
  color: var(--ink);
}

.nav-contact {
  padding: 9px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
}

.nav-contact:hover {
  border-color: #b9c7dd;
  background: rgba(37, 99, 235, 0.04);
}

.hero {
  min-height: 690px;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(380px, 0.98fr);
  align-items: center;
  gap: clamp(44px, 8vw, 110px);
  padding: 96px 0 106px;
}

.eyebrow {
  margin: 0 0 22px;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  text-wrap: pretty;
}

.hero h1 {
  margin: 0;
  max-width: 740px;
  font-size: clamp(3.3rem, 7vw, 6.65rem);
  line-height: 0.94;
  letter-spacing: -0.07em;
}

.hero h1 span {
  color: transparent;
  background: linear-gradient(100deg, var(--blue), #7a58df 72%, #b97a18);
  background-clip: text;
  -webkit-background-clip: text;
}

.hero-lede {
  max-width: 620px;
  margin: 32px 0 30px;
  color: var(--muted);
  font-size: clamp(1.06rem, 1.8vw, 1.3rem);
  line-height: 1.65;
}

.text-link {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  color: var(--ink);
  font-weight: 720;
  text-decoration: none;
}

.text-link span {
  color: var(--gold);
  transition: transform 160ms ease;
}

.text-link:hover span {
  transform: translate(3px, -3px);
}

.game-board {
  position: relative;
  min-height: 500px;
  padding: 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr auto;
  gap: 14px;
  isolation: isolate;
  background: rgba(247, 250, 255, 0.92);
  border: 1px solid var(--line);
  border-radius: 36px;
  box-shadow: 0 34px 90px rgba(26, 57, 112, 0.16);
  transform: rotate(1.5deg);
}

.game-board::before {
  content: "";
  position: absolute;
  inset: 14px;
  z-index: -1;
  border: 1px solid rgba(37, 99, 235, 0.08);
  border-radius: 25px;
}

.board-glow {
  position: absolute;
  inset: 20% 16%;
  z-index: -2;
  background: rgba(101, 168, 255, 0.24);
  filter: blur(70px);
}

.tile {
  min-height: 150px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 22px;
  color: #ffffff;
  font-size: clamp(0.9rem, 1.4vw, 1.05rem);
  font-weight: 820;
  letter-spacing: 0.15em;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.26), 0 12px 28px rgba(42, 65, 115, 0.18);
}

.tile-a,
.tile-d {
  background: linear-gradient(145deg, #4d86ed, #345ab8);
}

.tile-b,
.tile-c {
  background: linear-gradient(145deg, #896be4, #6143b7);
}

.tile-a {
  transform: translateY(-8px);
}

.tile-d {
  transform: translateY(8px);
}

.board-caption {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
  padding-top: 16px;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.principles article {
  min-height: 315px;
  padding: 52px 44px 52px 0;
}

.principles article + article {
  padding-left: 44px;
  border-left: 1px solid var(--line);
}

.principle-number {
  color: var(--gold);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.principles h2 {
  margin: 58px 0 14px;
  font-size: clamp(1.35rem, 2.3vw, 1.85rem);
  letter-spacing: -0.035em;
}

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

footer {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 40px;
  align-items: end;
  padding: 86px 0 46px;
}

.footer-brand {
  font-size: clamp(2.4rem, 5vw, 4.5rem);
  font-weight: 820;
  line-height: 1;
  letter-spacing: -0.06em;
}

footer > p {
  margin: 0;
  color: var(--muted);
  text-align: right;
}

.footer-links {
  display: flex;
  gap: 24px;
  padding-top: 32px;
}

.footer-links a {
  color: var(--muted);
  font-size: 0.94rem;
}

.copyright {
  padding-top: 32px;
  font-size: 0.86rem;
}

.policy-shell {
  display: grid;
  grid-template-columns: minmax(210px, 0.36fr) minmax(0, 0.64fr);
  gap: clamp(48px, 10vw, 150px);
  padding: 104px 0 120px;
}

.policy-intro {
  position: sticky;
  top: 48px;
  align-self: start;
}

.policy-intro h1 {
  margin: 0 0 18px;
  font-size: clamp(2.6rem, 5.5vw, 4.9rem);
  line-height: 0.98;
  letter-spacing: -0.065em;
}

.policy-intro > p:last-child {
  color: var(--muted);
  font-size: 0.92rem;
}

.policy-content {
  max-width: 760px;
}

.policy-summary {
  margin: 0 0 70px;
  padding-bottom: 42px;
  color: #2d405f;
  border-bottom: 1px solid var(--line);
  font-size: clamp(1.18rem, 2.2vw, 1.52rem);
  line-height: 1.6;
}

.policy-content section {
  padding: 0 0 54px;
}

.policy-content h2 {
  margin: 0 0 22px;
  color: var(--ink);
  font-size: clamp(1.45rem, 2.6vw, 1.9rem);
  letter-spacing: -0.035em;
}

.policy-content h3 {
  margin: 28px 0 8px;
  color: #2d405f;
  font-size: 1rem;
}

.policy-content p,
.policy-content li {
  color: var(--muted);
}

.policy-content p {
  margin: 0 0 18px;
}

.policy-content ul {
  margin: 0 0 20px;
  padding-left: 1.3em;
}

.policy-content li {
  margin-bottom: 10px;
  padding-left: 7px;
}

.policy-content a {
  color: #1f58c7;
}

.policy-content strong {
  color: #2d405f;
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: 74px;
  }

  .game-board {
    min-height: 440px;
    width: min(100%, 620px);
    transform: none;
  }

  .principles {
    grid-template-columns: 1fr;
  }

  .principles article {
    min-height: auto;
    padding: 42px 0;
  }

  .principles article + article {
    padding-left: 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .principles h2 {
    margin-top: 28px;
  }

  .policy-shell {
    grid-template-columns: 1fr;
    gap: 60px;
    padding-top: 74px;
  }

  .policy-intro {
    position: static;
  }
}

@media (max-width: 600px) {
  .site-header,
  main,
  footer {
    width: min(calc(100% - 32px), var(--max-width));
  }

  .site-header {
    min-height: 80px;
  }

  nav {
    gap: 18px;
  }

  .nav-contact {
    display: none;
  }

  .hero {
    min-height: auto;
    gap: 64px;
    padding: 70px 0 84px;
  }

  .hero h1 {
    font-size: clamp(3rem, 16vw, 4.5rem);
  }

  .game-board {
    min-height: 352px;
    padding: 24px;
    border-radius: 26px;
  }

  .tile {
    min-height: 112px;
    border-radius: 16px;
    font-size: 0.76rem;
  }

  .board-caption {
    font-size: 0.65rem;
  }

  footer {
    grid-template-columns: 1fr;
    align-items: start;
    padding-top: 64px;
  }

  footer > p {
    text-align: left;
  }

  .footer-links {
    flex-direction: column;
    gap: 10px;
  }

  .copyright {
    padding-top: 18px;
  }

  .policy-shell {
    padding-bottom: 80px;
  }

  .policy-summary {
    margin-bottom: 52px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}