:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f5f6f8;
  --color-border: #e2e5ea;
  --color-text: #1c1f26;
  --color-text-muted: #5b6472;
  --color-primary: #2f5fd6;
  --color-primary-dark: #23479f;
  --radius: 10px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

.public-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 2rem;
  border-bottom: 1px solid var(--color-border);
}

.public-nav .brand {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-text);
}

.public-nav .nav-actions {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.btn {
  display: inline-block;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  background: var(--color-primary);
  color: #fff;
  font-weight: 600;
  cursor: pointer;
  font-size: 0.95rem;
}

.btn:hover {
  background: var(--color-primary-dark);
  text-decoration: none;
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn-outline:hover {
  background: var(--color-bg-alt);
}

.btn-large {
  padding: 0.85rem 1.75rem;
  font-size: 1.05rem;
}

.hero {
  max-width: 780px;
  margin: 0 auto;
  padding: 5rem 1.5rem 4rem;
  text-align: center;
}

.hero h1 {
  font-size: 2.75rem;
  line-height: 1.15;
  margin: 0 0 1rem;
}

.hero p {
  font-size: 1.2rem;
  color: var(--color-text-muted);
  margin: 0 0 2rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.features {
  background: var(--color-bg-alt);
  padding: 4rem 1.5rem;
}

.features-grid {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.75rem;
}

.feature-card .feature-icon {
  font-size: 1.75rem;
  margin-bottom: 0.75rem;
}

.feature-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
}

.feature-card p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.public-footer {
  text-align: center;
  padding: 2.5rem 1.5rem;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

@media (max-width: 600px) {
  .hero h1 {
    font-size: 2rem;
  }

  .public-nav {
    padding: 1rem;
  }
}