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

body {
  font-family: "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", serif;
  background: #faf8f4;
  color: #2b2622;
  line-height: 1.9;
  font-size: 16px;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding: 24px 32px;
  border-bottom: 1px solid #e3ded5;
}
header > a { font-size: 18px; letter-spacing: 0.12em; display: flex; align-items: center; }
header > a img { height: 38px; width: auto; display: block; }
nav a { margin-left: 20px; font-size: 14px; }
a { color: #2b2622; text-decoration: none; }
nav a:hover, header > a:hover { opacity: 0.6; }

main { max-width: 900px; margin: 0 auto; padding: 56px 24px 80px; }

h1 { font-size: 30px; font-weight: normal; letter-spacing: 0.08em; margin-bottom: 32px; }
h2 { font-size: 21px; font-weight: normal; letter-spacing: 0.06em; margin: 64px 0 20px; padding-bottom: 10px; border-bottom: 1px solid #e3ded5; }
h3 { font-size: 17px; font-weight: normal; margin-bottom: 8px; }
p { margin-bottom: 18px; }

img { max-width: 100%; height: auto; display: block; }

.hero { width: 100%; margin-bottom: 40px; }
.hero img { width: 100%; height: 420px; object-fit: cover; object-position: center; }

figure { margin-bottom: 28px; }
figcaption { font-size: 13px; color: #7a736a; margin-top: 8px; }

.grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; margin: 24px 0 40px; }
.grid img { width: 100%; height: 260px; object-fit: cover; object-position: center; }

.course { margin-bottom: 56px; }
.course > img { width: 100%; height: 340px; object-fit: cover; object-position: center; background: #fff; margin-bottom: 16px; }

table { width: 100%; border-collapse: collapse; margin-bottom: 24px; }
th, td { text-align: left; padding: 12px 8px; border-bottom: 1px solid #e3ded5; font-weight: normal; }
th { width: 34%; color: #7a736a; font-size: 15px; }

.note { font-size: 14px; color: #7a736a; }

.cta {
  display: inline-block;
  margin: 8px 12px 8px 0;
  padding: 12px 28px;
  border: 1px solid #2b2622;
  font-size: 14px;
  letter-spacing: 0.06em;
}
.cta:hover { background: #2b2622; color: #faf8f4; }

footer {
  border-top: 1px solid #e3ded5;
  padding: 32px;
  font-size: 13px;
  color: #7a736a;
  text-align: center;
}
footer p { margin-bottom: 6px; }

@media (max-width: 600px) {
  header { padding: 18px 20px; }
  header > a img { height: 30px; }
  nav a { margin: 0 14px 0 0; font-size: 13px; }
  main { padding: 36px 20px 60px; }
  h1 { font-size: 24px; }
  .grid { grid-template-columns: 1fr; }
  .hero img { height: 240px; }
  .grid img { height: 200px; }
  .course > img { height: 220px; }
}