@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.css');
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+KR:wght@400;600;700&display=swap');

:root {
  --paper: #F7F4EF;
  --paper-deep: #EFEAE1;
  --ink: #211D1A;
  --ink-soft: #56504A;
  --ink-faint: #8A8377;
  --line: #DAD3C6;
  --clay: #9C5049;
  --clay-deep: #7C3E38;
  --teal: #3F5654;
  --max: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'Pretendard', -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, .display {
  font-family: 'Noto Serif KR', serif;
  color: var(--ink);
  font-weight: 600;
  line-height: 1.35;
  margin: 0;
}

a { color: inherit; }

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

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(247, 244, 239, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand {
  font-family: 'Noto Serif KR', serif;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.01em;
  text-decoration: none;
}

.brand span {
  color: var(--clay);
}

.nav {
  display: flex;
  gap: 28px;
}

.nav a {
  text-decoration: none;
  font-size: 0.92rem;
  color: var(--ink-soft);
  padding: 6px 0;
  border-bottom: 1px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}

.nav a:hover,
.nav a[aria-current="page"] {
  color: var(--ink);
  border-color: var(--clay);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: 4px;
  width: 40px;
  height: 40px;
  font-size: 1.1rem;
  cursor: pointer;
}

@media (max-width: 760px) {
  .nav {
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    gap: 0;
    padding: 8px 24px 16px;
    display: none;
  }
  .nav.open { display: flex; }
  .nav a { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .nav-toggle { display: block; }
}

/* ---------- Hero ---------- */

.hero {
  padding: 88px 0 72px;
  border-bottom: 1px solid var(--line);
}

.hero .wrap {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero-eyebrow {
  font-size: 0.85rem;
  color: var(--clay-deep);
  margin-bottom: 14px;
}

.hero h1 {
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  max-width: 15ch;
}

.hero p {
  color: var(--ink-soft);
  max-width: 46ch;
  margin-top: 20px;
  font-size: 1.02rem;
}

.blueprint {
  aspect-ratio: 4 / 5;
  border: 1px solid var(--line);
  position: relative;
  background:
    repeating-linear-gradient(0deg, transparent, transparent 27px, var(--line) 27px, var(--line) 28px),
    repeating-linear-gradient(90deg, transparent, transparent 27px, var(--line) 27px, var(--line) 28px);
}

.blueprint svg { position: absolute; inset: 0; width: 100%; height: 100%; }

@media (max-width: 760px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .hero { padding: 56px 0 48px; }
  .blueprint { max-width: 260px; margin: 0 auto; }
}

/* ---------- Sections ---------- */

.section {
  padding: 64px 0;
  border-bottom: 1px solid var(--line);
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 24px;
  margin-bottom: 40px;
}

.section-head h2 {
  font-size: clamp(1.4rem, 2.6vw, 1.9rem);
}

.section-head p {
  color: var(--ink-faint);
  font-size: 0.92rem;
  max-width: 32ch;
  margin: 0;
}

.stack > * + * {
  border-top: 1px solid var(--line);
}

.row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
  gap: 32px;
  padding: 28px 0;
}

.row h3 {
  font-size: 1.08rem;
}

.row .meta {
  color: var(--ink-faint);
  font-size: 0.85rem;
  margin-top: 6px;
}

.row p {
  color: var(--ink-soft);
  margin: 0;
}

@media (max-width: 640px) {
  .row { grid-template-columns: 1fr; gap: 8px; }
}

/* ---------- FAQ / accordion ---------- */

.faq-item {
  border-top: 1px solid var(--line);
}

.faq-item:last-child { border-bottom: 1px solid var(--line); }

.faq-q {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 22px 0;
  font-family: 'Noto Serif KR', serif;
  font-size: 1.02rem;
  color: var(--ink);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  gap: 20px;
}

.faq-q::after {
  content: '+';
  font-family: 'Pretendard', sans-serif;
  color: var(--clay);
  flex-shrink: 0;
}

.faq-item.open .faq-q::after { content: '–'; }

.faq-a {
  display: none;
  padding: 0 0 24px;
  color: var(--ink-soft);
  max-width: 62ch;
}

.faq-item.open .faq-a { display: block; }

/* ---------- Cards used sparingly (procedure list) ---------- */

.plain-list {
  display: grid;
  gap: 0;
}

.plain-list li {
  list-style: none;
  border-top: 1px solid var(--line);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: baseline;
}

.plain-list li:last-child { border-bottom: 1px solid var(--line); }

.plain-list .name { font-size: 1rem; }
.plain-list .tag { color: var(--ink-faint); font-size: 0.85rem; }

/* ---------- Image placeholders ---------- */
/* Swap the background-image on these once real photos are ready;
   layout and captions are already sized to receive them. */

.img-slot {
  border: 1px dashed var(--line);
  background: var(--paper-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--ink-faint);
  font-size: 0.78rem;
  line-height: 1.5;
  padding: 12px;
}

.img-slot--hero { aspect-ratio: 4 / 5; }
.img-slot--square { aspect-ratio: 1 / 1; }
.img-slot--wide { aspect-ratio: 16 / 9; }
.img-slot--thumb { aspect-ratio: 4 / 3; width: 100%; }

/* ---------- Procedure grid (image + text card) ---------- */

.proc-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.proc-card .img-slot { margin-bottom: 14px; }
.proc-card .name { font-size: 0.98rem; display: block; margin-bottom: 4px; }
.proc-card .tag { color: var(--ink-faint); font-size: 0.85rem; }

@media (max-width: 760px) {
  .proc-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
}

/* ---------- Column row with thumbnail ---------- */

.row-thumb {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 24px;
  padding: 28px 0;
  align-items: start;
}

@media (max-width: 640px) {
  .row-thumb { grid-template-columns: 1fr; gap: 12px; }
}

/* ---------- Concern-based procedure finder ---------- */

.concern-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 28px 0;
}

@media (min-width: 640px) {
  .concern-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

.concern-btn {
  border: 1px solid var(--line);
  background: none;
  padding: 16px 14px;
  text-align: left;
  cursor: pointer;
  font-family: 'Pretendard', sans-serif;
  font-size: 0.9rem;
  color: var(--ink);
  transition: border-color 0.15s, color 0.15s;
}

.concern-btn:hover { border-color: var(--ink-faint); }

.concern-btn.active {
  border-color: var(--clay);
  color: var(--clay-deep);
}

.result-panel {
  display: none;
  margin-top: 8px;
  padding: 26px;
  border: 1px solid var(--line);
  background: var(--paper-deep);
}

.result-panel.show { display: block; }

.result-panel .eyebrow {
  font-size: 0.8rem;
  color: var(--clay-deep);
  margin-bottom: 8px;
}

.result-panel h3 {
  font-size: 1.15rem;
  margin-bottom: 12px;
}

.result-panel p {
  color: var(--ink-soft);
  margin: 0 0 14px;
  max-width: 60ch;
}

.result-panel .note {
  font-size: 0.82rem;
  color: var(--ink-faint);
  border-top: 1px solid var(--line);
  padding-top: 14px;
  margin: 0 0 14px;
}

.result-faqs {
  border-top: 1px solid var(--line);
  padding-top: 14px;
  display: none;
}

.result-faqs.show { display: block; }

.result-faqs .rf-item + .rf-item { margin-top: 14px; }
.result-faqs .rf-q { font-size: 0.9rem; font-weight: 600; color: var(--ink); margin: 0 0 4px; }
.result-faqs .rf-a { font-size: 0.86rem; color: var(--ink-soft); margin: 0; }

.collagen-block {
  border: 1px solid var(--line);
  padding: 24px;
  background: var(--paper-deep);
  margin-top: 8px;
}

.collagen-block h3 { font-size: 1.05rem; margin-bottom: 10px; }
.collagen-block p { color: var(--ink-soft); margin: 0 0 14px; }
.collagen-block .tags { display: flex; flex-wrap: wrap; gap: 8px; }
.collagen-block .tag-pill {
  font-size: 0.8rem;
  border: 1px solid var(--clay);
  color: var(--clay-deep);
  padding: 4px 12px;
}

/* ---------- Real photos (replace img-slot placeholders) ---------- */

.photo--hero {
  aspect-ratio: 4 / 5;
  width: 100%;
  object-fit: cover;
  display: block;
  border: 1px solid var(--line);
}

.photo--wide {
  aspect-ratio: 16 / 9;
  width: 100%;
  object-fit: cover;
  display: block;
  border: 1px solid var(--line);
}

.photo--thumb {
  aspect-ratio: 4 / 3;
  width: 100%;
  object-fit: cover;
  display: block;
  border: 1px solid var(--line);
}

/* ---------- Footer social / booking links ---------- */

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 4px;
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--ink-soft);
}

.footer-links a:hover { color: var(--clay-deep); }

.footer-links svg { width: 18px; height: 18px; flex-shrink: 0; }

/* ---------- Q&A search page: grouping, hierarchy, emphasis ---------- */

.qa-group-title {
  font-family: 'Noto Serif KR', serif;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--ink);
  margin: 40px 0 6px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--ink);
}

.qa-group-title:first-child { margin-top: 0; }

.qa-subgroup { margin-bottom: 4px; }

.qa-sub-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Pretendard', sans-serif;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ink-faint);
  text-transform: uppercase;
  margin: 22px 0 4px;
}

.qa-marker { font-size: 0.9rem; line-height: 1; }
.qa-marker--filler { color: var(--clay); }
.qa-marker--guide { color: var(--teal); }

.qa-list .faq-item .faq-q {
  font-size: 1.02rem;
  font-weight: 600;
}

.qa-list .faq-a p:first-child { font-size: 0.98rem; }

.qa-keyword {
  color: #B0342B;
  font-weight: 700;
}

.qa-list .faq-q {
  cursor: default;
}

.qa-list .faq-q::after {
  display: none;
}

.qa-list .faq-a {
  display: block !important;
}

/* ---------- Category split (home entry to the two hubs) ---------- */

.category-split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

@media (max-width: 640px) {
  .category-split { grid-template-columns: 1fr; }
}

.category-card {
  border: 1px solid var(--line);
  padding: 26px 22px;
  text-decoration: none;
  color: var(--ink);
  display: block;
}

.category-card.featured {
  border-color: var(--clay);
  background: #FBF1EF;
}

.category-card .badge {
  display: inline-block;
  font-size: 0.72rem;
  color: var(--clay-deep);
  border: 1px solid var(--clay);
  padding: 2px 9px;
  margin-bottom: 12px;
}

.category-card h3 {
  font-size: 1.15rem;
  margin-bottom: 8px;
}

.category-card p {
  font-size: 0.88rem;
  color: var(--ink-soft);
  margin: 0;
}

/* ---------- Buttons / links ---------- */

.btn {
  display: inline-block;
  border: 1px solid var(--ink);
  color: var(--ink);
  text-decoration: none;
  padding: 12px 22px;
  font-size: 0.92rem;
  margin-top: 24px;
  transition: background 0.15s, color 0.15s;
}

.btn:hover { background: var(--ink); color: var(--paper); }

.text-link {
  color: var(--clay-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- Footer ---------- */

.site-footer {
  padding: 48px 0 64px;
  color: var(--ink-faint);
  font-size: 0.86rem;
}

.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 24px;
}

.site-footer a { text-decoration: none; color: var(--ink-soft); }

/* ---------- Column article ---------- */

.article-head {
  padding: 72px 0 40px;
  border-bottom: 1px solid var(--line);
}

.article-head .hero-eyebrow { margin-bottom: 18px; }

.article-head h1 { max-width: 20ch; font-size: clamp(1.7rem, 3.4vw, 2.3rem); }

.article-body {
  padding: 48px 0;
  max-width: 68ch;
}

.article-body p { color: var(--ink-soft); margin: 0 0 22px; }
.article-body h2 { font-size: 1.3rem; margin: 40px 0 16px; }