body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #f4f8fb;
  color: #333;
  line-height: 1.6;
}

.banner {
  position: relative;
  width: 100%;
  height: 400px;
  overflow: hidden;
}

.banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.banner-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #ffffff;
  background: rgba(0, 0, 0, 0.5);
  padding: 20px 50px;
  border-radius: 10px;
}

.banner-text h1 {
  margin: 0;
  font-size: 48px;
  letter-spacing: 2px;
}

.mission {
  max-width: 900px;
  margin: 60px auto;
  text-align: center;
  padding: 0 20px;
  background: #ffffff;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.08);
  padding: 40px;
}

.mission h2 {
  font-size: 36px;
  color: #2980b9;
  margin-bottom: 20px;
  letter-spacing: 1px;
}

.mission p {
  font-size: 18px;
  line-height: 1.8;
  color: #555;
  max-width: 800px;
  margin: 0 auto 30px auto;
}

.mission ul {
  list-style: none;
  padding: 0;
  max-width: 700px;
  margin: 0 auto;
  text-align: left;
}

.mission ul li {
  position: relative;
  padding: 15px 20px 15px 40px;
  margin-bottom: 15px;
  background: #f0f6fc;
  border-left: 4px solid #2980b9;
  border-radius: 6px;
  transition: background 0.3s ease;
}

.mission ul li:hover {
  background: #e2eef9;
}

.mission ul li::before {
  content: "✓";
  position: absolute;
  left: 15px;
  top: 50%;
  transform: translateY(-50%);
  color: #2980b9;
  font-weight: bold;
}

.founder {
  max-width: 900px;
  margin: 60px auto;
  padding: 0 20px;
}

.founder h2 {
  text-align: center;
  font-size: 36px;
  color: #2980b9;
  margin-bottom: 30px;
  letter-spacing: 1px;
}

.founder-card {
  display: flex;
  align-items: center;
  background: #ffffff;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.1);
  overflow: hidden;
  padding: 30px;
}

.founder-card img {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  object-fit: cover;
  margin-right: 40px;
  border: 4px solid #2980b9;
}

.founder-details h3 {
  margin: 0 0 15px 0;
  font-size: 28px;
  color: #2c3e50;
}

.founder-details p {
  margin: 8px 0;
  font-size: 17px;
  color: #555;
}

@media (max-width: 768px) {
  .banner-text h1 {
    font-size: 32px;
  }

  .mission {
    padding: 30px 20px;
  }

  .mission h2,
  .founder h2 {
    font-size: 28px;
  }

  .mission p {
    font-size: 16px;
  }

  .mission ul li {
    padding: 12px 20px 12px 40px;
  }

  .founder-card {
    flex-direction: column;
    text-align: center;
  }

  .founder-card img {
    margin: 0 0 20px 0;
  }
}