:root {
  --blue: #004849;
  --blue-dark: #003332;
  --orange: #f4a261;
  --green: #2a9d8f;
  --yellow: #e9c46a;
  --cream: #fdfaf6;
  --text: #1f2937;
  --muted: #6b7280;
  --card: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--cream);
  color: var(--text);
  line-height: 1.6;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 32px;
  background: var(--card);
  border-bottom: 1px solid #eeeeee;
}

header a.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text);
}

header img {
  height: 40px;
  width: 40px;
  object-fit: contain;
  border-radius: 8px;
}

header span {
  font-size: 20px;
  font-weight: 800;
}

nav a {
  margin-left: 20px;
  text-decoration: none;
  color: var(--muted);
  font-weight: 600;
}

nav a:hover {
  color: var(--blue);
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px;
}

.hero {
  text-align: center;
  padding: 48px 24px;
}

.hero img {
  width: 120px;
  height: 120px;
  object-fit: contain;
  border-radius: 24px;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 42px;
  font-weight: 900;
  margin: 0 0 12px;
  color: var(--blue);
}

.hero p {
  font-size: 18px;
  color: var(--muted);
  max-width: 500px;
  margin: 0 auto 32px;
}

.button {
  display: inline-block;
  background: var(--orange);
  color: #fff;
  padding: 14px 28px;
  border-radius: 40px;
  text-decoration: none;
  font-weight: 700;
  font-size: 17px;
  box-shadow: 0 4px 12px rgba(244, 162, 97, 0.3);
}

.button:hover {
  background: #e68a45;
}

.about {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

.about h2 {
  color: var(--blue);
  font-size: 22px;
  margin: 0 0 12px;
}

.about p {
  color: var(--muted);
  font-size: 16px;
  margin: 0;
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
  margin-top: 48px;
}

.feature {
  background: var(--card);
  border: 1px solid #eeeeee;
  border-radius: 24px;
  padding: 24px;
  text-align: center;
}

.feature h3 {
  margin: 0 0 8px;
  color: var(--blue);
  font-size: 18px;
}

.feature p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

article h1 {
  color: var(--blue);
  font-size: 32px;
  margin-top: 0;
}

article h2 {
  color: var(--blue);
  font-size: 20px;
  margin-top: 28px;
}

article ul {
  padding-left: 20px;
}

article a {
  color: var(--orange);
}

footer {
  text-align: center;
  padding: 40px 24px;
  color: var(--muted);
  font-size: 14px;
  border-top: 1px solid #eeeeee;
  margin-top: 40px;
}

@media (max-width: 480px) {
  header {
    padding: 16px 20px;
  }

  main {
    padding: 20px;
  }

  .hero h1 {
    font-size: 34px;
  }

  nav a {
    margin-left: 12px;
    font-size: 14px;
  }
}