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

body {
  font-family: 'Apple SD Gothic Neo', 'Malgun Gothic', sans-serif;
  background: #f5f7fa;
  color: #333;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 16px;
}

.container {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  padding: 48px 40px;
  width: 100%;
  max-width: 520px;
}

h1 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.subtitle {
  color: #666;
  font-size: 0.95rem;
  margin-bottom: 32px;
}

.form-group {
  margin-bottom: 20px;
}

label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: #444;
}

input,
select,
textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: inherit;
  color: #333;
  transition: border-color 0.2s;
  background: #fafafa;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: #4f8ef7;
  background: #fff;
}

textarea {
  resize: vertical;
}

.submit-btn {
  width: 100%;
  padding: 14px;
  background: #4f8ef7;
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: 8px;
  transition: background 0.2s;
}

.submit-btn:hover {
  background: #3a7be0;
}

.comments-section {
  width: 100%;
  max-width: 520px;
  margin: 32px auto 40px;
  padding: 0 16px;
}

.comments-section h2 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: #333;
}

@media (max-width: 480px) {
  .container {
    padding: 32px 20px;
  }
}