:root {
  --navy: #14264a;
  --navy-dark: #0d1a34;
  --warm-white: #fdf7ed;
  --card-white: #ffffff;
  --yellow: #f5c518;
  --text-muted: #4b5876;
  --radius: 12px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  line-height: 1.6;
  color: var(--navy);
  background-color: var(--warm-white);
}

.notice {
  background-color: var(--yellow);
  color: var(--navy-dark);
  text-align: center;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.6rem 1rem;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: 960px;
  margin: 0 auto;
  padding: 1rem 1.25rem;
}

.brand {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 800;
}

.brand-dot {
  color: #c79a00;
}

.site-header nav {
  display: flex;
  gap: 1rem;
}

.site-header a {
  color: var(--navy);
  text-decoration: none;
  font-weight: 600;
}

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

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.25rem 3rem;
}

.hero {
  background-color: var(--navy);
  color: var(--warm-white);
  border-radius: var(--radius);
  padding: 2.5rem 2rem;
  margin-top: 0.5rem;
}

.eyebrow {
  margin: 0 0 0.5rem;
  color: var(--yellow);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.85rem;
}

.hero h1 {
  margin: 0 0 1rem;
  font-size: 2.25rem;
  line-height: 1.2;
  max-width: 22ch;
}

.intro {
  margin: 0 0 1.5rem;
  max-width: 48ch;
  color: #e9e1d1;
}

.button {
  display: inline-block;
  background-color: var(--yellow);
  color: var(--navy-dark);
  font-weight: 800;
  text-decoration: none;
  padding: 0.7rem 1.25rem;
  border-radius: 999px;
}

.button:hover,
.button:focus {
  background-color: #ffd84d;
}

section {
  margin-top: 2.5rem;
}

h2 {
  font-size: 1.5rem;
  margin: 0 0 1rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.card {
  background-color: var(--card-white);
  border: 2px solid var(--navy);
  border-top: 8px solid var(--yellow);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
}

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

#about p,
#contact p {
  max-width: 62ch;
}

.small {
  font-size: 0.9rem;
  color: var(--text-muted);
}

a[href^="mailto:"] {
  color: var(--navy);
  font-weight: 700;
}

footer {
  background-color: var(--navy-dark);
  color: var(--warm-white);
  text-align: center;
  font-size: 0.9rem;
  padding: 1.25rem;
}

/* Responsive: stack layout for small phones, including 390px */
@media (max-width: 640px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero {
    padding: 1.75rem 1.25rem;
  }

  .hero h1 {
    font-size: 1.75rem;
  }

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

  .button {
    width: 100%;
    text-align: center;
  }
}