* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: "Open Sans", Arial, sans-serif;
  background-color: #ffffff;
  color: #1d1d1d;
  line-height: 1.6;
}

/* Header */
.navbar {
  background-color: #0f5555;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  position: sticky;
  top: 0;
  z-index: 10;
}
.logo a { color: #fff; text-decoration: none; font-weight: 700; font-size: 1.2rem; }
.navbar nav a { color: #fff; margin-left: 1rem; text-decoration: none; font-weight: 600; }
.navbar nav a:hover { text-decoration: underline; }

/* Hero */
.hero {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  background-color: #e5f7f6;
  padding: 3rem 1.5rem;
}
.hero-text { flex: 1 1 350px; max-width: 500px; padding: 1rem; }
.hero-text h1 { color: #003c3c; margin-bottom: 1rem; font-size: 1.8rem; }
.hero-text p { margin-bottom: 1.5rem; }
.hero-image { flex: 1 1 400px; text-align: center; }
.hero-image img { width: 100%; max-width: 420px; border-radius: 6px; }

.btn-primary {
  background-color: #0f5555;
  color: #fff;
  padding: 0.75rem 1.5rem;
  border-radius: 4px;
  text-decoration: none;
  display: inline-block;
  border: none;
  cursor: pointer;
}
.btn-primary:hover { background-color: #084242; }

/* Sections */
section { padding: 4rem 1.5rem; max-width: 1100px; margin: auto; }
h2 { text-align: center; margin-bottom: 1.5rem; color: #003c3c; }

/* Pricing */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}
.card {
  background: #f9ffff;
  border: 1px solid #cce0de;
  border-radius: 6px;
  padding: 1.5rem;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}
.card h3 { color: #0f5555; margin-bottom: 0.5rem; }
.note { text-align: center; margin-top: 1rem; font-size: 0.9rem; color: #555; }

/* Channels */
.channel-list p {
  margin-bottom: 0.75rem;
  border-bottom: 1px solid #e0e0e0;
  padding-bottom: 0.5rem;
}

/* Why Us */
.why-us ul { list-style: none; max-width: 600px; margin: auto; }
.why-us li::before { content: "✓ "; color: #0f5555; }
.why-us li { margin-bottom: 0.5rem; }

/* About */
.about p { margin-bottom: 1rem; text-align: center; }

/* Contact */
.contact form {
  display: flex;
  flex-direction: column;
  max-width: 500px;
  margin: 1rem auto;
}
.contact input, .contact textarea {
  margin-bottom: 1rem;
  padding: 0.75rem;
  border-radius: 4px;
  border: 1px solid #ccc;
  font-size: 1rem;
}
.contact button { align-self: center; }
.fineprint {
  text-align: center;
  margin-top: 0.25rem;
  font-size: 0.85rem;
  color: #555;
}

/* Footer */
footer {
  text-align: center;
  padding: 2rem 1rem;
  background-color: #0f5555;
  color: #fff;
}
footer .back-top { display: block; color: #b3ece8; text-decoration: none; margin-top: 0.5rem; }

/* Mobile tightening */
@media (max-width: 768px) {
  .navbar { padding: 0.75rem 1rem; }
  .navbar nav a { margin-left: 0.75rem; font-size: 0.95rem; }
  .navbar nav { flex-wrap: wrap; justify-content: center; }

  .hero {
    flex-direction: column;
    text-align: center;
    padding: 1.75rem 1rem;
  }

  .hero-text { padding: 0.5rem; }
  .hero-text h1 { font-size: 1.5rem; line-height: 1.2; margin-bottom: 0.75rem; }
  .hero-text p { margin-bottom: 1rem; }

  .hero-image img { max-width: 360px; margin-top: 0.5rem; }

  section { padding: 3rem 1rem; }
}

@media (max-width: 420px) {
  .hero-image img { max-width: 320px; }
  .btn-primary { width: 100%; text-align: center; }
}