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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', sans-serif;
  line-height: 1.6;
  background-color: #f5f5f5;
  color: #333;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  background-image: linear-gradient(90deg, #00c6ff, #478de3);
  color: white;
  padding: 1rem;
  text-align: center;
}

nav {
  display: flex;
  justify-content: start;
  gap: 2rem;
}

nav a {
  color: white;
  text-decoration: none;
  font-weight: bold;
  font-size: 1rem;
}

nav a:hover,
nav a.active {
  text-decoration: underline;
}

/* Main container */
.about-container {
  padding: 3rem 2rem;
  max-width: 900px;
  margin: 0 auto;
  flex: 1;
}

/* Section styling */
.about-container section {
  margin-bottom: 3rem;
  background: #fff;
  border-radius: 12px;
  padding: 2rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

/* Headings */
.about-container h1 {
  font-size: 2rem;
  color: #111;
  margin-bottom: 1rem;
}

.about-container h2 {
  font-size: 1.5rem;
  color: #222;
  margin-bottom: 1rem;
}

/* Paragraphs */
.about-container p {
  font-size: 1rem;
  margin-bottom: 1rem;
}

/* Lists */
.about-container ul {
  list-style: disc;
  padding-left: 1.5rem;
  font-size: 1rem;
  color: #333;
}

.about-container li {
  margin-bottom: 0.5rem;
}

/* Footer */
footer {
  background: #fff;
  color: #222;
  text-align: center;
  padding: 1rem;
  margin-top: 2rem;
  border-top: 1px solid #ddd;
}