/* ============================================
   layout.css — 헤더, 푸터, 공통 레이아웃
   엘림인테리어 (eliminterior.com)
   ============================================ */

/* ── 헤더 ── */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  display: flex;
  align-items: center;
  transition: background-color var(--transition-base), box-shadow var(--transition-base);
}

.header--transparent {
  background-color: transparent;
}

.header--scrolled {
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.header--solid {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

/* 로고 */
.header__logo {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.header__logo-en {
  font-family: var(--font-serif);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.03em;
}

.header--transparent .header__logo-en {
  color: var(--color-white);
}
.header--scrolled .header__logo-en {
  color: var(--color-primary);
}

.header__logo-kr {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
}

.header--transparent .header__logo-kr {
  color: rgba(255,255,255,0.7);
}
.header--scrolled .header__logo-kr {
  color: var(--color-text-muted);
}

/* 네비게이션 */
.nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-10);
}

.nav__link {
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.03em;
  color: var(--color-primary);
  transition: color var(--transition-fast);
  position: relative;
}

.header--transparent .nav__link {
  color: rgba(255,255,255,0.85);
}
.header--scrolled .nav__link {
  color: var(--color-primary);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-secondary);
  transition: width var(--transition-base);
}

.nav__link:hover::after,
.nav__link--active::after {
  width: 100%;
}

.nav__link:hover {
  color: var(--color-secondary);
}

.nav__cta {
  margin-left: var(--space-4);
  padding: var(--space-2) var(--space-5);
  font-size: var(--text-sm);
  font-weight: 600;
  border: 1px solid var(--color-secondary);
  color: var(--color-secondary);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.header--transparent .nav__cta {
  border-color: rgba(255,255,255,0.6);
  color: rgba(255,255,255,0.9);
}

.nav__cta:hover {
  background-color: var(--color-secondary);
  color: var(--color-white);
  border-color: var(--color-secondary);
}

/* 햄버거 메뉴 */
.header__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  cursor: pointer;
}

.header__hamburger span {
  display: block;
  width: 24px;
  height: 1.5px;
  background-color: var(--color-primary);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.header--transparent .header__hamburger span {
  background-color: var(--color-white);
}
.header--scrolled .header__hamburger span {
  background-color: var(--color-primary);
}

.header__hamburger.is-open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.header__hamburger.is-open span:nth-child(2) {
  opacity: 0;
}
.header__hamburger.is-open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* 모바일 드로어 */
.nav-drawer {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-6);
  z-index: 99;
  box-shadow: var(--shadow-md);
  transform: translateY(-8px);
  opacity: 0;
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.nav-drawer.is-open {
  opacity: 1;
  transform: translateY(0);
}

.nav-drawer__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.nav-drawer__link {
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-primary);
  padding-block: var(--space-2);
  border-bottom: 1px solid var(--color-border);
}

.nav-drawer__cta {
  display: block;
  margin-top: var(--space-4);
  text-align: center;
  padding: var(--space-3) var(--space-6);
  background-color: var(--color-secondary);
  color: var(--color-white);
  font-weight: 600;
  border-radius: var(--radius-sm);
}

/* ── 푸터 ── */
.footer {
  background-color: var(--color-bg-dark);
  color: rgba(255,255,255,0.7);
  padding-block: var(--space-16) var(--space-8);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.footer__brand-name {
  font-family: var(--font-serif);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--space-1);
}

.footer__brand-sub {
  font-size: var(--text-sm);
  color: var(--color-accent);
  margin-bottom: var(--space-5);
}

.footer__desc {
  font-size: var(--text-sm);
  line-height: 1.8;
  color: rgba(255,255,255,0.5);
  margin-bottom: var(--space-6);
}

.footer__contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  margin-bottom: var(--space-2);
  color: rgba(255,255,255,0.65);
}

.footer__contact-item a:hover {
  color: var(--color-accent);
}

.footer__col-title {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-5);
}

.footer__nav-link {
  display: block;
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.6);
  margin-bottom: var(--space-3);
  transition: color var(--transition-fast);
}

.footer__nav-link:hover {
  color: var(--color-white);
}

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer__copy {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.35);
}

.footer__blog-link {
  font-size: var(--text-xs);
  color: var(--color-accent);
  transition: opacity var(--transition-fast);
}
.footer__blog-link:hover { opacity: 0.7; }

/* 반응형 */
@media (max-width: 1023px) {
  .nav { display: none; }
  .header__hamburger { display: flex; }
  .nav-drawer { display: block; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 767px) {
  .footer__grid { grid-template-columns: 1fr; gap: var(--space-8); }
  .footer__bottom { flex-direction: column; text-align: center; }
}