:root {
  --bg: #f4f6f8;
  --card: #ffffff;
  --text: #17202a;
  --muted: #5d6d7e;
  --border: #d6dbdf;
  --dark: #111827;
  --blue: #1d4ed8;
  --green: #117a65;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}
header {
  background: var(--dark);
  color: white;
  padding: 26px 18px;
}
.header-inner {
  max-width: 1100px;
  margin: auto;
}
header h1 {
  margin: 0 0 6px;
  font-size: 30px;
}
header p {
  margin: 0;
  color: #d1d5db;
}
nav {
  background: #1f2937;
}
nav .nav-inner {
  max-width: 1100px;
  margin: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 8px 12px;
}
nav a {
  color: white;
  text-decoration: none;
  padding: 10px 12px;
  border-radius: 8px;
}
nav a:hover {
  background: #374151;
}
main {
  max-width: 1100px;
  margin: 24px auto;
  padding: 0 16px 50px;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 22px;
  margin-bottom: 18px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.notice {
  border-left: 5px solid var(--blue);
  background: #eef6fc;
  padding: 14px 16px;
  border-radius: 8px;
}
.good {
  border-left: 5px solid var(--green);
  background: #eefaf7;
  padding: 14px 16px;
  border-radius: 8px;
}
.button {
  display: inline-block;
  background: var(--blue);
  color: white;
  text-decoration: none;
  padding: 12px 18px;
  border-radius: 8px;
  font-weight: bold;
}
label {
  display: block;
  font-weight: bold;
  margin: 14px 0 6px;
}
input[type="text"],
input[type="tel"],
input[type="email"] {
  width: 100%;
  max-width: 520px;
  padding: 12px;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  font-size: 16px;
}
.checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: #f8fafc;
  border: 1px solid #cbd5e1;
  border-radius: 10px;
  padding: 14px;
  margin: 16px 0;
}
.checkbox-row input {
  margin-top: 4px;
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
}
button {
  background: var(--blue);
  color: white;
  border: 0;
  padding: 12px 18px;
  border-radius: 8px;
  font-size: 16px;
  font-weight: bold;
  cursor: pointer;
}
.small {
  color: var(--muted);
  font-size: 14px;
}
footer {
  text-align: center;
  color: var(--muted);
  padding: 24px;
  font-size: 14px;
}
footer a { margin: 0 6px; }
a { color: var(--blue); }
@media (max-width: 800px) {
  .grid { grid-template-columns: 1fr; }
}