:root {
  --c-paper: #F6F4F1;
  --c-brown-900: #2B2118;
  --c-clay: #A47148;
  --c-slate: #5C6B73;
  --c-tan: #D9CBBF;
  --font-display: 'Do Hyeon', 'Gothic A1', sans-serif;
  --font-body: 'Gothic A1', system-ui, -apple-system, 'Malgun Gothic', sans-serif;
}

body {
  font-family: var(--font-body);
  background: var(--c-paper);
  color: var(--c-brown-900);
}
h1, h2, .logo { font-family: var(--font-display); font-weight: 400; }
h3 { font-family: var(--font-body); font-weight: 700; }

header { background: var(--c-paper); border-bottom: 1px solid var(--c-tan); }
header .logo { font-size: 1.3rem; color: var(--c-clay); }
header nav a { color: var(--c-brown-900); font-size: 0.9rem; font-family: var(--font-body); }
header nav a:hover, header nav a:focus-visible { color: var(--c-clay); }

.hero { background: var(--c-tan); }
.hero .container { max-width: 700px; }
.hero h1 { font-size: clamp(1.95rem, 4.4vw, 2.6rem); }
.hero .lead { margin-top: 0.9rem; color: #4a3d31; max-width: 34rem; font-family: var(--font-body); }
.hero .btn-tel {
  margin-top: 1.4rem;
  display: inline-block;
  background: var(--c-brown-900);
  color: #fff;
  padding: 0.85em 1.7em;
  border-radius: 3px;
  font-weight: 700;
  font-family: var(--font-body);
}
.hero .btn-tel:hover { background: #453626; }

main section > h2 { font-size: 1.5rem; color: var(--c-brown-900); margin-bottom: 1.3rem; }
main p { color: #4a3d31; }
main p + p { margin-top: 0.8rem; }

/* vertical timeline by recurrence interval */
.timeline { position: relative; padding-left: 1.6rem; border-left: 3px solid var(--c-tan); display: grid; gap: 1.6rem; }
.timeline .tl-item { position: relative; }
.timeline .tl-item::before {
  content: "";
  position: absolute;
  left: -1.98rem;
  top: 0.3rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--c-clay);
  border: 2px solid var(--c-paper);
}
.tl-item .tl-interval { font-family: var(--font-display); font-size: 1.1rem; color: var(--c-clay); display: block; margin-bottom: 0.3rem; }
.tl-item h3 { font-size: 1rem; margin-bottom: 0.3rem; }
.tl-item p { font-size: 0.92rem; color: #4a3d31; }

.action-list { display: grid; gap: 0.8rem; }
.action-list li {
  border-left: 3px solid var(--c-slate);
  padding-left: 1rem;
  color: #4a3d31;
  font-size: 0.94rem;
}

.review-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
blockquote.review {
  background: #fff;
  border: 1px solid var(--c-tan);
  padding: 1rem 1.1rem;
  font-size: 0.9rem;
  color: #4a3d31;
}
blockquote.review cite { display: block; margin-top: 0.5rem; font-style: normal; font-size: 0.8rem; color: var(--c-clay); }

.related-links { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.related-links a {
  background: #fff;
  border: 1px solid var(--c-tan);
  color: var(--c-brown-900);
  border-radius: 3px;
  padding: 0.5em 1.1em;
  font-size: 0.88rem;
}
.related-links a:hover { border-color: var(--c-clay); color: var(--c-clay); }

.cta { background: var(--c-brown-900); color: var(--c-paper); }
.cta h3 { color: #fff; margin-bottom: 0.6rem; font-family: var(--font-display); font-weight: 400; font-size: 1.4rem; }
.cta p { color: #d3c6b9; margin-bottom: 1.1rem; font-family: var(--font-body); }
.cta a[href^="tel:"] { background: var(--c-clay); color: #fff; border-radius: 3px; font-weight: 700; }
.cta a[href^="tel:"]:hover { background: #8a5c39; }

footer { background: var(--c-tan); color: #4a3d31; font-size: 0.85rem; }
footer a { color: #4a3d31; }
footer nav a { margin-right: 0.2rem; }

figcaption { color: #4a3d31; margin-top: 0.5rem; }

@media (max-width: 720px) {
  .review-grid { grid-template-columns: 1fr; }
}