:root {
  --navy: #0c1929;
  --hero-bg: #0369a1;
  --hero-text: #f0f9ff;
  --hero-muted: #bae6fd;
  --cta-bg: #e0f2fe;
  --cta-text: #0c4a6e;
  --text: #0c1929;
  --muted: #64748b;
  --border: #e2e8f0;
  --section-alt: #f0f7fb;
  --whatsapp: #16a34a;
  --max-width: 1080px;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  background: #fff;
  color: var(--text);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

/* Hero */
.hero {
  background: var(--hero-bg);
  text-align: center;
  padding: 8rem 0;
}
.hero h1 {
  margin: 0 0 1.25rem;
  font-size: clamp(2.4rem, 6vw, 3.75rem);
  font-weight: 700;
  color: var(--hero-text);
}
.hero p {
  margin: 0 auto 2rem;
  max-width: 44rem;
  font-size: 1.25rem;
  color: var(--hero-muted);
}
.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}
.btn-cta {
  display: inline-block;
  padding: 0.6rem 1.25rem;
  border-radius: 0.6rem;
  background: var(--cta-bg);
  color: var(--cta-text);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.15s ease;
}
.btn-cta:hover {
  transform: translateY(-2px);
}
.btn-whatsapp {
  background: var(--whatsapp);
  color: #fff;
}

/* İçerik (rich text) */
main {
  flex: 1 0 auto;
}
.content {
  padding: 4rem 1.5rem;
}
.content h2 {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--navy);
  margin: 3rem 0 1.5rem;
}
.content h2:first-child {
  margin-top: 0;
}
.content h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--navy);
  margin: 2rem 0 0.5rem;
}
.content p {
  max-width: 48rem;
  margin: 0.75rem 0;
  color: #334155;
}
.content ul,
.content ol {
  max-width: 48rem;
  margin: 0.75rem 0;
  color: #334155;
}
.content a {
  color: var(--hero-bg);
}
.content blockquote {
  max-width: 48rem;
  margin: 1.5rem auto;
  padding: 1rem 1.5rem;
  background: var(--section-alt);
  border-left: 4px solid var(--hero-bg);
  border-radius: 0 0.5rem 0.5rem 0;
}
.content img {
  max-width: 100%;
}

/* Footer */
footer {
  flex-shrink: 0;
  background: var(--navy);
  color: rgba(255, 255, 255, 0.8);
  text-align: center;
  padding: 3rem 0 2.5rem;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
}
.footer-contact {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  justify-content: center;
}
.footer-contact a,
.footer-contact span {
  color: #fff;
  text-decoration: none;
}
.footer-contact a:hover {
  text-decoration: underline;
}
.footer-copy {
  margin: 0;
  font-size: 0.9rem;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  justify-content: center;
}
.footer-links a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.875rem;
  text-decoration: none;
}
.footer-links a:hover {
  color: #fff;
}

@media (max-width: 640px) {
  .hero {
    padding: 5rem 0;
  }
  .topbar-inner {
    justify-content: center;
  }
}