* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  line-height: 1.6;
  color: #1a1a1a;
  background: #fff;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
.header {
  padding: 1rem 0;
  border-bottom: 1px solid #eee;
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: #0d9488;
  text-decoration: none;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}

.logo-img {
  height: 2rem;
  width: auto;
  display: block;
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav a {
  color: #374151;
  text-decoration: none;
}

.nav a:hover {
  color: #0d9488;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  border-radius: 0.375rem;
  font-weight: 500;
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
}

.btn-primary {
  background: #0d9488;
  color: #fff;
}

.btn-primary:hover {
  background: #0f766e;
}

.btn-outline {
  border: 1px solid #0d9488;
  color: #0d9488;
}

.btn-outline:hover {
  background: #f0fdfa;
}

.btn-large {
  padding: 0.75rem 1.5rem;
  font-size: 1.05rem;
}

/* Hero */
.hero {
  padding: 4rem 0;
  text-align: center;
}

.hero h1 {
  font-size: 2.25rem;
  font-weight: 700;
  margin: 0 0 1rem;
  color: #111;
}

.lead {
  font-size: 1.2rem;
  color: #4b5563;
  margin: 0 0 0.5rem;
}

.tagline {
  color: #6b7280;
  margin: 0 0 2rem;
}

.tagline a {
  color: #0d9488;
  text-decoration: none;
}

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

/* Sections */
.section {
  padding: 3rem 0;
}

.section h2 {
  font-size: 1.5rem;
  margin: 0 0 1rem;
  color: #111;
}

.section-alt {
  background: #f9fafb;
}

.features {
  list-style: none;
  padding: 0;
  margin: 0;
}

.features li {
  padding: 0.5rem 0;
  padding-left: 1.5rem;
  position: relative;
}

.features li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: #0d9488;
}

.links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.links li {
  padding: 0.35rem 0;
}

.showcase-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
}

.showcase-list li {
  padding: 0.5rem 0;
  padding-left: 1.5rem;
  position: relative;
}

.showcase-list li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: #0d9488;
}

.showcase-list a {
  color: #0d9488;
  text-decoration: none;
}

.showcase-list a:hover {
  text-decoration: underline;
}

.links a {
  color: #0d9488;
  text-decoration: none;
}

.links a:hover {
  text-decoration: underline;
}

.section-cta {
  text-align: center;
}

/* Footer */
.footer {
  padding: 2rem 0;
  border-top: 1px solid #eee;
  color: #6b7280;
  font-size: 0.9rem;
}

.footer p {
  margin: 0.25rem 0;
}

.footer a {
  color: #0d9488;
  text-decoration: none;
}

@media (max-width: 640px) {
  .nav {
    flex-wrap: wrap;
    gap: 0.75rem;
  }
  .hero h1 {
    font-size: 1.75rem;
  }
}