/* ───────────────────────────────────────────────
   nav-v3.20.css — 모든 페이지 공통 상단 고정바
   nav.css의 배포용 지문 파일
   ─────────────────────────────────────────────── */

/* 독립 HTML 간 이동에서도 scrollbar 폭과 nav 시각 위치를 고정한다. */
:root { --main-nav-height: 72px; }
html { scrollbar-gutter: stable; }
@view-transition { navigation: auto; }
@keyframes medimap-page-in {
  from { opacity: 0; }
  to { opacity: 1; }
}
::view-transition-old(root) {
  animation: none;
  opacity: 1;
}
::view-transition-new(root) {
  animation: medimap-page-in 240ms cubic-bezier(.16, 1, .3, 1) both;
}
/*
 * 독립 HTML 이동 중 새 문서의 nav DOM이 준비될 때까지 이전 nav 스냅샷을 유지한다.
 * root의 이전 화면도 투명하게 만들지 않아 전체 화면 백색 점멸을 차단한다.
 */
::view-transition-group(medimap-main-nav) {
  animation: none;
  z-index: 1000;
}
::view-transition-old(medimap-main-nav) {
  animation: none;
  mix-blend-mode: normal;
  opacity: 1;
}
::view-transition-new(medimap-main-nav) {
  animation: none;
  mix-blend-mode: normal;
  opacity: 0;
}

/* ─────────── BASE ─────────── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  padding: 24px 32px;
  min-height: 72px;
  display: flex;
  flex-wrap: wrap;
  row-gap: 8px;
  justify-content: space-between;
  align-items: center;
  line-height: 1.4;
  z-index: 100;
  background: #FAFAFA;
  border-bottom: 1px solid transparent;
  transition: border 0.3s;
  view-transition-name: medimap-main-nav;
}
nav.scrolled { border-bottom: 1px solid var(--line); }

/* ─────────── LOGO ─────────── */
nav .logo {
  display: flex;
  align-items: baseline;
  font-size: 18px;
  color: inherit;
  text-decoration: none;
  cursor: pointer;
}
nav .logo .logo-medimap {
  font-weight: 700;
  letter-spacing: -0.03em;
}
nav .logo .logo-equals {
  display: inline-block;
  font-weight: 800;
  font-size: 1.18em;
  letter-spacing: 0;
  line-height: 1;
  width: 0;
  overflow: hidden;
  opacity: 0;
  margin: 0;
  color: var(--accent);
  white-space: nowrap;
  transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.45s ease,
              margin 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
nav .logo.show-equals .logo-equals {
  width: 0.6em;
  opacity: 1;
  margin: 0 0.18em;
}
nav .logo.equals-blue .logo-equals { color: var(--accent); }
nav .logo.equals-orange .logo-equals { color: var(--accent-orange); }
nav .logo .logo-solutions {
  font-weight: 400;
  letter-spacing: -0.01em;
  margin-left: 0.22em;
  transition: margin-left 0.5s cubic-bezier(0.4, 0, 0.2, 1),
              filter 0.35s ease;
}
nav .logo.show-equals .logo-solutions { margin-left: 0; }
nav .logo.solutions-flash .logo-solutions { filter: brightness(1.6); }
nav .logo .app-version {
  font-size: 11px;
  font-weight: 400;
  color: var(--text-dim);
  margin-left: 6px;
  letter-spacing: 0;
}

/* ─────────── MENU ─────────── */
nav .menu {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 32px;
  font-size: 14px;
  color: var(--text-muted);
}
nav .menu a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s;
  white-space: nowrap;
  writing-mode: horizontal-tb;
  word-break: keep-all;
  letter-spacing: -0.01em;
}
nav .menu a:hover { color: var(--text); }
nav .menu a.active {
  color: var(--text);
  font-weight: 600;
}

/* ─────────── 진료과별: 1열 초컴팩트·무구분선 dropdown ─────────── */
nav .clinic-nav-menu {
  position: relative;
  display: flex;
  align-items: center;
}
nav .clinic-nav-trigger {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  appearance: none;
  -webkit-appearance: none;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  letter-spacing: -0.01em;
  white-space: nowrap;
  cursor: pointer;
  transition: color 0.2s;
}
nav .clinic-nav-trigger:hover,
nav .clinic-nav-menu.is-active .clinic-nav-trigger,
nav .clinic-nav-menu.is-open .clinic-nav-trigger {
  color: var(--text);
}
nav .clinic-nav-menu.is-active .clinic-nav-trigger { font-weight: 600; }
html.clinic-navigation-pending nav .clinic-nav-trigger { color: var(--accent-orange); }
nav .clinic-nav-chevron {
  width: 12px;
  height: 12px;
  transition: transform 360ms cubic-bezier(.22, 1, .36, 1);
}
nav .clinic-nav-menu.is-open .clinic-nav-chevron { transform: rotate(180deg); }
nav .clinic-nav-dropdown {
  position: absolute;
  top: calc(100% + 24px);
  left: 50%;
  width: 160px;
  max-height: min(340px, calc(100vh - var(--main-nav-height, 72px) - 12px));
  padding: 3px 9px 5px;
  overflow-y: auto;
  transform: translate(-50%, -8px);
  border: 1px solid var(--line);
  border-top: 0;
  border-radius: 0 0 4px 4px;
  background: rgba(255, 255, 255, 0.985);
  box-shadow: 0 14px 34px rgba(10, 10, 10, 0.10);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  font-size: calc(1em - 1px);
  font-weight: 400;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 260ms ease, transform 360ms cubic-bezier(.22, 1, .36, 1), visibility 260ms;
  z-index: 2;
}
nav .clinic-nav-menu.is-open .clinic-nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
  pointer-events: auto;
}
nav .clinic-nav-item {
  display: block;
  width: 100%;
  margin: 0;
  min-width: 0;
  padding: 6px;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--text-muted);
  font: inherit;
  line-height: 1.35;
  text-align: left;
  letter-spacing: -0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: pointer;
  text-decoration: none;
  transition: color 0.18s ease;
}
nav .clinic-nav-item:hover,
nav .clinic-nav-item:focus-visible {
  color: var(--accent-orange);
}
nav .clinic-nav-item:focus-visible,
nav .clinic-nav-trigger:focus-visible { outline: 3px solid rgba(91, 155, 213, 0.30); outline-offset: 2px; }
nav .clinic-nav-item.is-selected {
  color: var(--text);
  font-weight: 600;
}
nav .clinic-nav-item.is-navigating {
  color: var(--accent-orange);
  font-weight: 600;
}
nav .clinic-nav-item[data-clinic-state="pending"] { color: var(--text-dim); }
nav .clinic-nav-item[data-clinic-state="pending"]:hover { color: #666; }

/* ─────────── 진료과별 독립 페이지: 단일 문서 스크롤·공통 정렬선 ─────────── */
body.clinic-page-shell {
  padding-top: var(--main-nav-height, 72px);
  overflow-x: hidden;
}
body.clinic-page-shell .hero {
  padding-top: 16px;
}
body.clinic-page-shell .container {
  width: 100%;
  max-width: 1100px;
}
body.clinic-page-shell .hero .sub,
body.clinic-page-shell section p,
body.clinic-page-shell .sec-lead {
  width: 100%;
  max-width: none;
}

/* ─────────── NAV RIGHT (CTA) ─────────── */
nav .nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}
nav .cta {
  background: var(--text);
  color: var(--bg);
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 13px;
  text-decoration: none;
  font-weight: 500;
  transition: opacity 0.2s;
  letter-spacing: -0.01em;
}
nav .cta:hover { opacity: 0.85; }

/* ─────────── 태블릿/모바일 (≤900) — wrap 메뉴 ─────────── */
@media (max-width: 900px) {
  :root { --main-nav-height: 78px; }
  nav {
    padding: 12px 16px;
    min-height: var(--main-nav-height);
    row-gap: 6px;
  }
  nav .logo { font-size: 15px; flex-shrink: 0; }
  nav .nav-right { gap: 8px; flex-shrink: 0; }
  nav .menu {
    gap: 6px 20px;
    font-size: 13px;
    width: 100%;
    order: 3;
    justify-content: center;
    line-height: 1.4;
  }
  nav .menu a { padding: 2px 0; }
  nav .clinic-nav-trigger { padding: 2px 0; }
  nav .clinic-nav-dropdown {
    top: calc(100% + 12px);
    width: 158px;
  }
}

/* ─────────── 모바일 (≤480) ─────────── */
@media (max-width: 480px) {
  :root { --main-nav-height: 90px; }
  nav { padding: 10px 14px; }
  nav .logo { font-size: 14px; }
  nav .logo .app-version { font-size: 9px; margin-left: 4px; }
  nav .nav-right { gap: 10px; }
  nav .menu { font-size: 12px; gap: 4px 14px; }
  nav .clinic-nav-dropdown {
    top: calc(100% + 10px);
    width: 154px;
    padding-inline: 8px;
  }
  nav .clinic-nav-item { padding: 6px 5px; }
  body.clinic-page-shell .hero { padding-top: 10px; }
}

@media (prefers-reduced-motion: reduce) {
  ::view-transition-old(root),
  ::view-transition-new(root) { animation: none; }
  nav .clinic-nav-dropdown,
  nav .clinic-nav-chevron { transition: none; }
}

/* ─────────── 소형 모바일 (≤360) ─────────── */
@media (max-width: 360px) {
  nav { padding: 8px 12px; }
  nav .logo { font-size: 13px; }
}