*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family:
    system-ui,
    -apple-system,
    "Segoe UI",
    Roboto,
    "Helvetica Neue",
    Arial,
    sans-serif;
  font-size: 17px;
  line-height: 1.6;
  color: #1f2328;
  background: #fafafa;
}

a {
  color: #0b6bcb;
  text-decoration: underline;
  text-underline-offset: 2px;
}

a:hover {
  text-decoration: none;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}

h1 {
  font-size: 2rem;
  line-height: 1.2;
  margin: 0 0 0.5rem;
}

h2 {
  font-size: 1.25rem;
  line-height: 1.3;
  margin: 2rem 0 0.5rem;
}

p,
ul,
ol {
  margin: 0.75rem 0;
}

ul,
ol {
  padding-left: 1.4rem;
}

li + li {
  margin-top: 0.25rem;
}

.lede {
  font-size: 1.1rem;
  color: #3a3a3a;
}

.muted {
  color: #6a737d;
  font-size: 0.9rem;
}

.breadcrumb {
  margin: 0 0 1rem;
  font-size: 0.95rem;
}

.prose {
  background: #fff;
  border: 1px solid #e6e8eb;
  border-radius: 12px;
  padding: 2rem 1.5rem;
}

.cards {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
  margin: 2rem 0;
}

@media (min-width: 600px) {
  .cards {
    grid-template-columns: 1fr 1fr;
  }
}

.card {
  display: block;
  padding: 1.25rem 1.25rem 1rem;
  background: #fff;
  border: 1px solid #e6e8eb;
  border-radius: 12px;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.card:hover {
  border-color: #0b6bcb;
  transform: translateY(-1px);
}

.card h2 {
  margin: 0 0 0.25rem;
  font-size: 1.1rem;
  color: #0b6bcb;
}

.card p {
  margin: 0;
  color: #3a3a3a;
  font-size: 0.95rem;
}

.notice {
  margin: 1.25rem 0;
  padding: 0.85rem 1rem;
  background: #fff8e1;
  border: 1px solid #f0c674;
  border-radius: 8px;
  font-size: 0.95rem;
}

.form {
  display: grid;
  gap: 1rem;
  margin: 1.5rem 0;
  padding: 1.25rem;
  background: #f6f8fa;
  border: 1px solid #e6e8eb;
  border-radius: 10px;
}

.form label {
  display: grid;
  gap: 0.4rem;
  font-weight: 600;
  font-size: 0.95rem;
}

.form input,
.form textarea {
  font: inherit;
  width: 100%;
  padding: 0.55rem 0.7rem;
  border: 1px solid #cdd3da;
  border-radius: 6px;
  background: #fff;
}

.form input:focus,
.form textarea:focus {
  outline: 2px solid #0b6bcb;
  outline-offset: 1px;
  border-color: #0b6bcb;
}

.form textarea {
  resize: vertical;
  min-height: 5rem;
}

.form button {
  justify-self: start;
  font: inherit;
  font-weight: 600;
  padding: 0.6rem 1.1rem;
  background: #0b6bcb;
  color: #fff;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

.form button:hover {
  background: #095aac;
}

footer {
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid #e6e8eb;
  font-size: 0.95rem;
  color: #3a3a3a;
}