@charset "utf-8";
/* =========================================================
   BTMS Redesign — header.css (서브페이지 공유)
   ========================================================= */
header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: 86px;
  display: flex;
  align-items: center;
  transition: background 0.4s var(--ease), box-shadow 0.4s var(--ease), height 0.4s var(--ease);
}
header .container { display: flex; align-items: center; justify-content: space-between; }
.logo { font-size: 27px; font-weight: 800; letter-spacing: -0.04em; color: #fff; transition: color 0.3s var(--ease); }
.logo span { color: #fff; transition: color 0.3s var(--ease); }
/* 이미지 로고: 헤더가 solid가 아닐 때(히어로 위) 흰색, solid일 때 원본 색 */
.logo img { display: block; width: 80px; transition: filter 0.3s var(--ease); filter: brightness(0) invert(1); }
header.solid .logo img { filter: none; }
.gnb { display: flex; gap: 2px; }
.gnb > li > a {
  display: block; padding: 12px 22px; font-size: 16px; font-weight: 600;
  color: rgba(255, 255, 255, 0.92); border-radius: 999px;
  transition: color 0.25s var(--ease), background 0.25s var(--ease);
}
.gnb > li > a:hover { background: rgba(255, 255, 255, 0.14); }
.hd-side { display: flex; align-items: center; gap: 18px; }
.hd-tel { display: inline-flex; align-items: center; gap: 8px; font-size: 15px; font-weight: 700; color: #fff; opacity: 0.95; }
.hd-tel svg { width: 17px; height: 17px; }
.hd-sitemap {
  width: 42px; height: 42px; display: grid; place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.3); border-radius: 50%; color: #fff;
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease);
}
.hd-sitemap:hover { background: rgba(255, 255, 255, 0.16); }

/* scrolled state — 흰 배경.  서브페이지처럼 히어로가 없는 화면은
   <header class="solid"> 로 시작하면 흰 헤더로 고정됩니다. */
header.solid { height: 72px; background: rgba(255, 255, 255, 0.92); backdrop-filter: saturate(180%) blur(14px); box-shadow: 0 1px 0 var(--line), 0 8px 30px rgba(13, 40, 64, 0.06); }
header.solid .logo { color: var(--ink); }
header.solid .logo span { color: var(--brand); }
header.solid .gnb > li > a { color: var(--ink-2); }
header.solid .gnb > li > a:hover { background: var(--brand-soft); color: var(--brand-ink); }
header.solid .hd-tel { color: var(--brand-ink); }
header.solid .hd-sitemap { color: var(--ink-2); border-color: var(--line); }
header.solid .hd-sitemap:hover { background: var(--bg-soft); }

/* dropdown */
.gnb > li { position: relative; }
.dropdown {
  position: absolute; top: calc(100% + 14px); left: 50%;
  transform: translateX(-50%) translateY(8px); min-width: 172px;
  background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 8px;
  box-shadow: 0 18px 40px rgba(13, 40, 64, 0.13);
  opacity: 0; visibility: hidden; transition: opacity 0.25s var(--ease), transform 0.25s var(--ease);
}
.gnb > li:hover .dropdown { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.dropdown a { display: block; padding: 10px 16px; font-size: 15px; font-weight: 500; color: var(--ink-2); border-radius: 9px; white-space: nowrap; transition: background 0.2s, color 0.2s; }
.dropdown a:hover { background: var(--brand-soft); color: var(--brand-ink); }

@media (max-width: 1080px) {
  .gnb, .hd-tel { display: none; }
}