.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(238, 240, 238, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand { display: flex; align-items: center; gap: 10px; line-height: 1.2; }
.brand-logo { width: 52px; height: 52px; }
.brand-text { display: flex; flex-direction: column; }
.brand-word {
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: 22px;
  letter-spacing: 0.06em;
  color: var(--color-accent);
}
.brand-sub {
  font-size: 15px;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
  text-align: center;
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav a {
  font-weight: 700;
  font-size: 15px;
  color: var(--color-text);
  transition: color 0.2s ease;
}
.nav a:hover { color: var(--color-accent); }
.nav .nav-cta { padding: 10px 22px; color: #fff; }
.nav .nav-cta:hover { color: #fff; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 32px;
  height: 24px;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

@media (max-width: 900px) {
  .nav-toggle { display: flex; }
  .nav {
    position: absolute;
    top: 76px;
    left: 0; right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 24px 28px;
    gap: 16px;
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.25s ease;
  }
  .nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .nav .nav-cta { align-self: flex-start; }
}

.site-footer {
  background: var(--color-dark);
  color: #A9BAB1;
  padding: 64px 0 32px;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.footer-logo-row { display: flex; align-items: center; gap: 10px; }
.footer-logo-row .brand-logo { width: 47px; height: 47px; }
.footer-brand .brand-word { color: var(--color-accent); font-size: 20px; }
.footer-biz { font-size: 12.5px; line-height: 1.8; margin-top: 12px; max-width: 420px; }

.footer-links { display: flex; gap: 48px; }
.footer-links h5 {
  color: var(--color-brass);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.footer-links ul { display: flex; flex-direction: column; gap: 8px; font-size: 13.5px; }
.footer-links a:hover { color: var(--color-accent); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 11px;
}

.floating-buttons {
  position: fixed;
  right: 20px;
  bottom: 24px;
  z-index: 90;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.fb-btn {
  position: relative;
  width: 48px; height: 48px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 900;
  font-size: 30px;
  color: #fff;
  box-shadow: 0 6px 16px rgba(0,0,0,0.2);
  transition: transform 0.2s ease;
}
.fb-btn svg { width: 44px; height: 44px; }
.fb-btn:hover { transform: scale(1.08); }

.fb-btn::after {
  content: attr(data-tooltip);
  position: absolute;
  right: calc(100% + 12px);
  top: 50%;
  transform: translateY(-50%);
  background: var(--color-dark);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
  padding: 7px 12px;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}
.fb-btn:hover::after {
  opacity: 1;
  visibility: visible;
}

@media (max-width: 640px) {
  .fb-btn::after { display: none; }
}
.fb-blog { background: #03C75A; }
.fb-insta { background: linear-gradient(135deg, #f9ce34, #ee2a7b, #6228d7); }
.fb-youtube { background: #FF0000; }
.fb-kakao { background: #FEE500; color: #3A1D1D; }
.fb-tel { background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark)); }

@media (max-width: 640px) {
  .footer-inner { flex-direction: column; }
}