body {
  font-family: 'Segoe UI', sans-serif;
  background: #f9f9f9;
  margin: 0;
  padding: 0;
  color: #222;
}

.container {
  max-width: 760px;
  margin: 0 auto;
  padding: 40px 20px;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 0 15px rgba(0, 0, 0, 0.08);
}

.section-title {
  text-align: center;
  font-size: 1.8rem;
  text-transform: uppercase;
  font-weight: 700;
  margin-bottom: 1.5em;
  color: #333;
}

form {
  display: flex;
  flex-direction: column;
  gap: 1.2em;
}

form input,
form textarea {
  width: 100%;
  padding: 12px;
  font-size: 1rem;
  border: 1px solid #ccc;
  border-radius: 6px;
}

form textarea {
  resize: vertical;
}

form button {
  padding: 16px 32px;
  font-size: 1.15rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(to right, #d32f2f, #b71c1c);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
  transition: all 0.3s ease;
  width: 100%;
  max-width: 360px;
  margin: 1em auto 0;
}

form button:hover {
  background: linear-gradient(to right, #c62828, #8e0000);
  transform: scale(1.05);
}

@media (prefers-color-scheme: dark) {
  body {
    background: #111;
    color: #e0e0e0;
  }

  .container {
    background: #1f1f1f;
  }

  input, textarea {
    background: #2a2a2a;
    border: 1px solid #555;
    color: #fff;
  }

  button {
    background: linear-gradient(to right, #ff4444, #bb0000);
    color: #fff;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.8);
  }
}