:root {
  --bg: #ffffff;
  --text: #172033;
  --muted: #5f6b7a;
  --line: #d9e1ea;
  --soft: #f3f7fb;
  --primary: #113f7a;
  --primary-dark: #0b2d58;
  --accent: #c61f2f;
  --card: #ffffff;
  --shadow: 0 18px 45px rgba(17, 63, 122, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
}

a {
  color: inherit;
}

.site-header {
  background:
    radial-gradient(circle at top right, rgba(198, 31, 47, 0.28), transparent 34rem),
    linear-gradient(135deg, #092040 0%, #113f7a 58%, #0b2d58 100%);
  color: #ffffff;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1120px;
  margin: 0 auto;
  padding: 22px 24px;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 2px solid rgba(255, 255, 255, 0.78);
  border-radius: 8px;
  font-weight: 700;
}

.brand small {
  display: block;
  color: rgba(255, 255, 255, 0.78);
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 16px;
  font-size: 0.95rem;
}

.nav-links a {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a:focus {
  color: #ffffff;
  text-decoration: underline;
  text-underline-offset: 5px;
}

.hero {
  max-width: 1120px;
  margin: 0 auto;
  padding: 76px 24px 96px;
}

.hero-content {
  max-width: 820px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-header .eyebrow {
  color: #ffccd2;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 20px;
  font-size: clamp(2.25rem, 5vw, 4.45rem);
  line-height: 1.05;
}

h2 {
  margin-bottom: 14px;
  color: var(--primary-dark);
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  line-height: 1.15;
}

h3 {
  margin-bottom: 8px;
  color: var(--primary-dark);
  font-size: 1.12rem;
}

.lead {
  max-width: 720px;
  color: rgba(255, 255, 255, 0.88);
  font-size: 1.2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 18px;
  border-radius: 8px;
  font-weight: 700;
  text-decoration: none;
}

.button.primary {
  background: var(--accent);
  color: #ffffff;
}

.button.secondary {
  border: 1px solid rgba(255, 255, 255, 0.72);
  color: #ffffff;
}

.section {
  max-width: 1120px;
  margin: 0 auto;
  padding: 72px 24px;
}

.muted {
  max-width: none;
  background: var(--soft);
}

.muted > * {
  max-width: 1120px;
  margin-left: auto;
  margin-right: auto;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 30px;
}

.section-heading p:not(.eyebrow),
.two-column p,
.notice p,
.card p,
.feature-grid p,
.footer p {
  color: var(--muted);
}

.feature-grid,
.cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.cards {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-grid article,
.card,
.notice {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--card);
  padding: 22px;
  box-shadow: var(--shadow);
}

.two-column,
.news,
.footer {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: start;
  gap: 40px;
}

.project-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.project-list span {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 10px 14px;
  color: var(--primary-dark);
  background: #ffffff;
  font-weight: 700;
}

.rules {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  padding: 0;
  list-style: none;
}

.rules li {
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  background: #ffffff;
  padding: 16px 18px;
  color: var(--muted);
}

.news {
  align-items: center;
}

.notice strong {
  display: block;
  margin-bottom: 8px;
  color: var(--primary-dark);
  font-size: 1.1rem;
}

.footer {
  max-width: 1120px;
  margin: 0 auto;
  padding: 56px 24px;
  border-top: 1px solid var(--line);
}

.footer address {
  display: grid;
  gap: 10px;
  font-style: normal;
}

.footer a {
  color: var(--primary);
  font-weight: 700;
}

@media (max-width: 840px) {
  .topbar,
  .two-column,
  .news,
  .footer {
    grid-template-columns: 1fr;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links {
    justify-content: flex-start;
  }

  .feature-grid,
  .cards,
  .rules {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 54px;
    padding-bottom: 72px;
  }

  .section {
    padding-top: 54px;
    padding-bottom: 54px;
  }
}