* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: #16212c;
  background: #f4f7fa;
}

.page {
  max-width: 920px;
  margin: 0 auto;
  padding: 2rem 1rem 3rem;
}

.top-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.top-nav a {
  color: #0f5cb7;
  text-decoration: none;
  font-weight: 600;
}

h1 {
  margin: 0 0 0.75rem;
  font-size: 2rem;
}

h2 {
  margin-top: 1.5rem;
}

p,
li {
  line-height: 1.6;
}

.card {
  background: #ffffff;
  border: 1px solid #d7e0ea;
  border-radius: 12px;
  padding: 1rem;
  margin-top: 1rem;
}

.feedback-form {
  display: grid;
  gap: 0.8rem;
}

.feedback-form label {
  display: grid;
  gap: 0.35rem;
  font-weight: 400;
}

.feedback-form input,
.feedback-form select,
.feedback-form textarea {
  font: inherit;
  padding: 0.55rem 0.65rem;
  border: 1px solid #cad5e2;
  border-radius: 8px;
}

.feedback-form button {
  width: fit-content;
  border: 0;
  border-radius: 8px;
  padding: 0.55rem 0.9rem;
  background: #0f5cb7;
  color: #ffffff;
  font-weight: 600;
  cursor: pointer;
}

.feedback-note {
  margin-top: 0.8rem;
  color: #4f5f70;
}

.app-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  padding: 1.2rem 0 0.25rem;
  margin-top: 1.2rem;
  border-top: 1px solid #d8e1eb;
}

.app-footer a {
  color: #0f5cb7;
  text-decoration: none;
  font-weight: 600;
}

.app-footer a:hover {
  text-decoration: underline;
}