/* ============================================================
   공통 레이아웃: 네비게이션, 푸터, 모바일 메뉴
   ============================================================ */

/* ---------- Navbar ---------- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-height);
  display: flex;
  align-items: center;
  z-index: 1000;
  background: rgba(10, 31, 68, 0.0);
  backdrop-filter: blur(0px);
  transition: background var(--transition), box-shadow var(--transition), backdrop-filter var(--transition);
}

.navbar.is-solid,
.navbar.is-scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  box-shadow: 0 2px 20px rgba(11,13,18,0.06);
}

.navbar .nav-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-white);
  transition: color var(--transition);
}

.navbar.is-solid .nav-logo,
.navbar.is-scrolled .nav-logo,
.navbar.theme-light .nav-logo {
  color: var(--ink);
}

.nav-logo .logo-mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--gradient-taegeuk);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1rem;
  box-shadow: var(--shadow-blue);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav-menu a {
  font-weight: 600;
  font-size: 0.95rem;
  color: rgba(255,255,255,0.88);
  transition: color var(--transition-fast);
  position: relative;
}

.navbar.is-solid .nav-menu a,
.navbar.is-scrolled .nav-menu a,
.navbar.theme-light .nav-menu a {
  color: var(--ink-soft);
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--color-red-400);
}
.navbar.is-solid .nav-menu a:hover,
.navbar.is-scrolled .nav-menu a:hover,
.navbar.theme-light .nav-menu a:hover {
  color: var(--accent);
}

.nav-menu .nav-cta {
  padding: 0.55rem 1.25rem;
  background: var(--gradient-red);
  color: white !important;
  border-radius: var(--radius-full);
  box-shadow: 0 6px 18px rgba(205,46,54,0.28);
}
.nav-menu .nav-cta.active {
  box-shadow: 0 6px 18px rgba(205,46,54,0.28), inset 0 0 0 2px rgba(255,255,255,0.6);
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  z-index: 1001;
}
.mobile-menu-btn span {
  height: 2px;
  background: currentColor;
  color: white;
  border-radius: 2px;
  transition: var(--transition);
}
.navbar.is-solid .mobile-menu-btn span,
.navbar.is-scrolled .mobile-menu-btn span,
.navbar.theme-light .mobile-menu-btn span { background: var(--ink); }

.mobile-menu-btn.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-menu-btn.active span:nth-child(2) { opacity: 0; }
.mobile-menu-btn.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 900px) {
  .mobile-menu-btn { display: flex; }
  .nav-menu {
    position: fixed;
    top: 0; right: 0;
    height: 100vh;
    width: min(78vw, 320px);
    background: var(--color-white);
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    padding: calc(var(--header-height) + var(--space-6)) var(--space-6) var(--space-6);
    gap: var(--space-5);
    transform: translateX(100%);
    transition: transform var(--transition-slow);
    box-shadow: -8px 0 32px rgba(0,0,0,0.12);
  }
  .nav-menu.open { transform: translateX(0); }
  .nav-menu a { color: var(--ink) !important; font-size: 1.05rem; }
  .nav-menu .nav-cta { width: 100%; text-align: center; }
}

/* ---------- Footer ---------- */
.footer {
  background: var(--gradient-ink);
  color: rgba(255,255,255,0.72);
  padding: var(--space-12) 0 var(--space-6);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(4, 1fr);
  gap: var(--space-8);
  padding-bottom: var(--space-10);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand .nav-logo { color: white; margin-bottom: var(--space-4); }
.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: var(--space-4);
  color: rgba(255,255,255,0.6);
}

.footer-social {
  display: flex;
  gap: var(--space-3);
}
.footer-social a {
  width: 38px; height: 38px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition-fast);
}
.footer-social a:hover {
  background: var(--gradient-taegeuk);
  transform: translateY(-3px);
}

.footer-col h4 {
  color: white;
  font-size: 0.95rem;
  margin-bottom: var(--space-4);
  font-weight: 700;
}
.footer-col ul { display: flex; flex-direction: column; gap: var(--space-3); }
.footer-col a {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.6);
  transition: var(--transition-fast);
}
.footer-col a:hover { color: var(--color-red-300); padding-left: 3px; }

.footer-bottom {
  padding-top: var(--space-6);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-size: 0.82rem;
  color: rgba(255,255,255,0.45);
}

.footer-company-info {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.4);
  line-height: 1.8;
  margin-top: var(--space-2);
}

@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-6); }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

/* ---------- Scroll to top ---------- */
.scroll-to-top {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--gradient-blue);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-blue);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
  z-index: 900;
}
.scroll-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.scroll-to-top:hover { transform: translateY(-4px); }

/* ---------- Page Hero (내부 페이지 공통 상단) ---------- */
.page-hero {
  padding: calc(var(--header-height) + var(--space-10)) 0 var(--space-10);
  background: var(--gradient-hero);
  color: white;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.5;
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 700;
  margin-bottom: var(--space-4);
  backdrop-filter: blur(8px);
}
.page-hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  margin-bottom: var(--space-3);
}
.page-hero p {
  color: rgba(255,255,255,0.78);
  font-size: 1.05rem;
  max-width: 600px;
}

/* ---------- Breadcrumb ---------- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: var(--space-4);
}
.breadcrumb a { color: rgba(255,255,255,0.8); }
.breadcrumb a:hover { color: white; }