* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', sans-serif;
  background: #f4f6f8;
  color: #333;
  line-height: 1.6;
}

header {
  background: linear-gradient(to right, #0077b6, #0096c7);
  color: white;
  padding: 30px 20px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

header .container {
  display: flex;
  align-items: center;
  gap: 15px;
  max-width: 960px;
  margin: 0 auto;
}

header .logo {
  width: 48px;
  height: 48px;
}

header h1 {
  font-size: 1.8em;
  font-weight: 800;
}

header p {
  font-size: 1em;
  opacity: 0.9;
}

.content {
  max-width: 960px;
  margin: 40px auto;
  padding: 0 20px;
}

section {
  background: white;
  border-radius: 12px;
  padding: 30px;
  margin-bottom: 30px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  animation: fadeIn 0.6s ease;
}

section h2 {
  color: #0077b6;
  margin-bottom: 15px;
  font-weight: 700;
}

.intro p, .about p {
  margin-bottom: 20px;
}

.features {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.features div {
  background: #e0f7fa;
  padding: 10px 15px;
  border-radius: 8px;
  font-weight: 600;
  color: #0077b6;
  flex-grow: 1;
  text-align: center;
}

.files ul {
  list-style: none;
}

.files li {
  margin-bottom: 10px;
}

.files a {
  text-decoration: none;
  background: #0077b6;
  color: white;
  padding: 10px 18px;
  border-radius: 8px;
  display: inline-block;
  transition: background 0.3s;
}

.files a:hover {
  background: #023e8a;
}

footer {
  text-align: center;
  padding: 20px;
  background: #edf2f4;
  font-size: 0.9em;
  color: #555;
}

footer a {
  color: #0077b6;
  text-decoration: none;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}