body {
  font-family: 'Source Sans Pro', Arial, sans-serif;
  background: #e5e6e8;
  color: #222;
  margin: 0;
  padding: 0;
}

h1, h2, h3 {
  font-family: 'Copperplate Gothic', 'Copperplate', serif;
  font-weight: 400;
  margin-top: 0;
  letter-spacing: 0.01em;
  text-align: left;
}

.navbar {
  display: flex;
  justify-content: center;
  align-items: center;
  background: #007aff;
  border-bottom: 1px solid #eee;
  padding: 1.2rem 0;
  font-weight: 300;
  font-size: 1.1rem;
  letter-spacing: 0.05em;
}

.navbar a {
  color: #fff;
  text-decoration: none;
  margin: 0 1.5rem;
  font-weight: 300;
  transition: color 0.2s;
}

.navbar a:hover {
  color: #e0eaff;
}

.container {
  max-width: 700px;
  margin: 2.5rem auto;
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 4px 32px rgba(0,0,0,0.07);
  padding: 2.5rem 2rem;
  text-align: left;
}

.intro {
  text-align: center;
  margin-top: 40px;
  margin-bottom: 32px;
}

.intro h1 {
  font-size: 2.5rem;
  font-weight: 300;
  margin-bottom: 0.5rem;
  margin-top: 0;
  text-align: center;
}

.intro p {
  font-size: 1.1rem;
  color: #444;
  margin-bottom: 14px;
}

.intro a {
  font-size: 1rem;
  color: #007aff;
  margin: 0 6px;
  text-decoration: none;
  transition: color 0.2s;
}

.intro a:hover {
  color: #005bb5;
  text-decoration: underline;
}

hr {
  border: none;
  border-top: 1px solid #eaeaea;
  margin: 38px 0 36px 0;
}

h2 {
  font-size: 1.5rem;
  font-weight: 300;
  margin-bottom: 1rem;
  margin-top: 0;
  letter-spacing: 0.01em;
  color: #1a1a1a;
}

h3 {
  font-size: 1.1rem;
  font-weight: 300;
  margin-bottom: 0.5rem;
  margin-top: 26px;
  color: #303030;
}

ul {
  margin-top: 0px;
  margin-bottom: 18px;
  padding-left: 20px;
  font-size: 1rem;
}

li {
  margin-bottom: 8px;
  line-height: 1.6;
}

strong {
  font-weight: 600;
  color: #0b56a3;
}

p {
  font-family: 'Inter', Arial, sans-serif;
  font-weight: 300;
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 14px;
  margin-top: 0;
}

.button {
  display: inline-block;
  background: #007aff;
  color: #fff;
  padding: 0.6rem 1.4rem;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 400;
  text-decoration: none;
  margin: 1rem 0;
  transition: background 0.2s;
}

.button:hover {
  background: #005bb5;
}

iframe {
  border-radius: 12px;
  border: 1px solid #eee;
}

.tags, .date {
  color: #888;
  font-size: 0.95rem;
  font-weight: 300;
  margin-left: 0.5rem;
}

@media (max-width: 800px) {
  .container {
    padding: 1.2rem 0.5rem;
  }
  .navbar {
    font-size: 1rem;
    padding: 0.8rem 0;
  }
}