/* General Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background: #f9fafb;
  color: #333;
  line-height: 1.6;
}

/* Container */
.container {
  max-width: 900px;
  margin: 50px auto;
  background: #fff;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0px 6px 18px rgba(0, 0, 0, 0.1);
}

/* Title */
h1 {
  text-align: center;
  color: #222;
  font-size: 2rem;
  margin-bottom: 10px;
}

.tagline {
  text-align: center;
  font-size: 1rem;
  color: #555;
  margin-bottom: 30px;
}

/* Input Section */
.input-section {
  display: flex;
  flex-direction: column;
  gap: 15px;
  margin-bottom: 25px;
}

label {
  font-weight: 600;
  font-size: 1rem;
}

#topic {
  padding: 12px;
  font-size: 1rem;
  border: 1px solid #ddd;
  border-radius: 8px;
  outline: none;
  transition: border 0.3s;
}

#topic:focus {
  border-color: #0077ff;
}

button {
  background: #0077ff;
  color: #fff;
  border: none;
  padding: 12px;
  font-size: 1rem;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.3s ease;
}

button:hover {
  background: #005fcc;
}

/* Result Section */
.result-section {
  margin-top: 25px;
}

.result-section h2 {
  font-size: 1.5rem;
  margin-bottom: 15px;
  border-bottom: 2px solid #eee;
  padding-bottom: 5px;
}

#outline {
  padding-left: 20px;
}

#outline h3 {
  margin-top: 15px;
  color: #0077ff;
  font-size: 1.2rem;
}

#outline ul {
  margin-left: 20px;
  margin-top: 8px;
}

#outline li {
  margin: 6px 0;
}