/**
 * SEOZZY Layout Styles
 */

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* Sections */
.section {
  padding: 60px 0;
}

@media (min-width: 768px) {
  .section {
    padding: 80px 0;
  }
}

@media (min-width: 1024px) {
  .section {
    padding: 120px 0;
  }
}

.section--dark {
  background-color: var(--color-deep-blue);
  color: var(--color-white);
}

.section--light {
  background: linear-gradient(rgba(245, 245, 245, 0.95), rgba(245, 245, 245, 0.9)), url('../images/future.svg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.site-logo img {
  height: 32px;
  width: auto;
}

/* Main Navigation */
.main-nav__list {
  display: none;
  gap: var(--space-xl);
}

@media (min-width: 1024px) {
  .main-nav__list {
    display: flex;
  }
}

.main-nav__item {
  position: relative;
}

.main-nav__link {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) 0;
  font-weight: 500;
  color: var(--color-navy);
  transition: color var(--transition-base);
}

.main-nav__link:hover,
.main-nav__link.is-active {
  color: var(--color-gold);
}

.dropdown-arrow {
  transition: transform var(--transition-base);
}

.main-nav__link--dropdown[aria-expanded="true"] .dropdown-arrow {
  transform: rotate(180deg);
}

/* Dropdown Menu */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 180px;
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
}

.has-dropdown:hover .dropdown-menu,
.has-dropdown:focus-within .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu__link {
  display: block;
  padding: var(--space-md);
  color: var(--color-navy);
  transition: background-color var(--transition-base), color var(--transition-base);
}

.dropdown-menu__link:hover,
.dropdown-menu__link.is-active {
  background-color: var(--color-light-gray);
  color: var(--color-gold);
}

/* Mobile Menu Button */
.mobile-menu-btn {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-sm);
}

@media (min-width: 1024px) {
  .mobile-menu-btn {
    display: none;
  }
}

.mobile-menu-btn__bar {
  width: 24px;
  height: 2px;
  background: var(--color-navy);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.mobile-menu-btn[aria-expanded="true"] .mobile-menu-btn__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.mobile-menu-btn[aria-expanded="true"] .mobile-menu-btn__bar:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn[aria-expanded="true"] .mobile-menu-btn__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Footer */
.site-footer {
  background-color: var(--color-navy);
  color: var(--color-white);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.site-footer__inner {
  display: grid;
  gap: var(--space-2xl);
}

@media (min-width: 768px) {
  .site-footer__inner {
    grid-template-columns: 1fr 2fr;
  }
}

.site-footer__logo {
  margin-bottom: var(--space-md);
  filter: brightness(0) invert(1); /* 어두운 배경에서 흰색으로 표시 */
}

.site-footer__slogan {
  font-size: 14px;
  color: var(--color-medium-gray);
  margin-bottom: var(--space-lg);
}

.site-footer__address {
  font-style: normal;
  font-size: 14px;
  color: var(--color-medium-gray);
  line-height: 1.8;
}

.site-footer__nav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.site-footer__nav-title {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: var(--space-md);
  color: var(--color-white);
}

.site-footer__nav ul li {
  margin-bottom: var(--space-sm);
}

.site-footer__nav a {
  font-size: 14px;
  color: var(--color-medium-gray);
  transition: color var(--transition-base);
}

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

.site-footer__bottom {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

@media (min-width: 768px) {
  .site-footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.site-footer__copyright {
  font-size: 14px;
  color: var(--color-medium-gray);
}

.site-footer__legal {
  display: flex;
  gap: var(--space-lg);
}

.site-footer__legal a {
  font-size: 14px;
  color: var(--color-medium-gray);
}

.site-footer__legal a:hover {
  color: var(--color-white);
}

/* Grid System */
.grid {
  display: grid;
  gap: var(--space-lg);
}

.grid--2 {
  grid-template-columns: 1fr;
}

.grid--3 {
  grid-template-columns: 1fr;
}

.grid--4 {
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .grid--2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid--3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid--3 {
    grid-template-columns: repeat(3, 1fr);
  }

  .grid--4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Header Scroll States */
.site-header {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.site-header.is-scrolled {
  box-shadow: var(--shadow-md);
}

.site-header.is-hidden {
  transform: translateY(-100%);
}

/* Mobile Menu Open State */
body.menu-open {
  overflow: hidden;
}

/* Mobile Navigation - Slide Menu */
@media (max-width: 1023px) {
  .main-nav__list {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-white);
    padding: var(--space-xl);
    flex-direction: column;
    gap: 0;
    transform: translateX(100%);
    transition: transform var(--transition-slow);
    overflow-y: auto;
    z-index: var(--z-fixed);
  }

  .main-nav__list.is-open {
    display: flex;
    transform: translateX(0);
  }

  .main-nav__item {
    border-bottom: 1px solid var(--color-light-gray);
  }

  .main-nav__link {
    padding: var(--space-md) 0;
    font-size: 18px;
  }

  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    background: var(--color-light-gray);
    border-radius: var(--radius-md);
    margin-top: var(--space-sm);
    margin-bottom: var(--space-sm);
    display: none;
  }

  .has-dropdown[aria-expanded="true"] .dropdown-menu,
  .main-nav__link--dropdown[aria-expanded="true"] + .dropdown-menu {
    display: block;
  }
}

/* Utility Classes */
.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }
.mb-3xl { margin-bottom: var(--space-3xl); }

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

/* Full Width Button */
.btn--full {
  width: 100%;
}