:root {
  --ink: #0e1b2c;
  --slate: #33415c;
  --muted: #5c6b85;
  --bg: #f7f9fb;
  --card: #ffffff;
  --line: #dce3ec;
  --accent: #2563a8;
  --accent-dark: #1a4a80;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--slate);
  line-height: 1.65;
  font-size: 17px;
}

header {
  background: var(--ink);
  padding: 18px 24px;
}

.header-inner {
  max-width: 880px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.brand {
  color: #fff;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
  text-decoration: none;
}

.brand span { color: #7fb3e8; }

nav a {
  color: #c9d6e8;
  text-decoration: none;
  font-size: 0.92rem;
  margin-left: 20px;
}

nav a:hover, nav a:focus { color: #fff; text-decoration: underline; }

main {
  max-width: 880px;
  margin: 0 auto;
  padding: 48px 24px 72px;
}

h1 {
  color: var(--ink);
  font-size: 2rem;
  line-height: 1.25;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

h2 {
  color: var(--ink);
  font-size: 1.25rem;
  margin: 36px 0 10px;
}

h3 {
  color: var(--ink);
  font-size: 1.05rem;
  margin: 24px 0 8px;
}

p { margin-bottom: 14px; }
ul, ol { margin: 0 0 14px 24px; }
li { margin-bottom: 6px; }

a { color: var(--accent); }

.lede {
  font-size: 1.1rem;
  color: var(--muted);
  margin-bottom: 28px;
}

.updated {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 28px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 28px;
  margin: 24px 0;
}

.notice {
  background: #eef4fb;
  border: 1px solid #c5d8ef;
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  padding: 18px 20px;
  margin: 20px 0;
  font-size: 0.95rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 18px;
  margin: 28px 0;
}

.grid .card { margin: 0; }

.card h3 { margin-top: 0; }

.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  padding: 13px 26px;
  border-radius: 8px;
  border: none;
  font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
}

.btn:hover, .btn:focus { background: var(--accent-dark); }

form label {
  display: block;
  font-weight: 600;
  color: var(--ink);
  margin: 16px 0 5px;
  font-size: 0.95rem;
}

form input[type="text"],
form input[type="email"],
form input[type="tel"] {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 1rem;
  background: #fff;
  color: var(--ink);
}

form input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

.consent-box {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: #f2f6fa;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  margin: 22px 0;
}

.consent-box input[type="checkbox"] {
  margin-top: 4px;
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.consent-box label {
  margin: 0;
  font-weight: 400;
  font-size: 0.92rem;
  color: var(--slate);
}

footer {
  border-top: 1px solid var(--line);
  background: #fff;
  padding: 32px 24px;
  font-size: 0.88rem;
  color: var(--muted);
}

.footer-inner { max-width: 880px; margin: 0 auto; }
.footer-inner p { margin-bottom: 6px; }
.footer-inner a { color: var(--muted); }

@media (max-width: 560px) {
  h1 { font-size: 1.6rem; }
  nav a { margin-left: 14px; }
}