/* 2026 CMC Seoul — Common */
:root {
  --color-orange: #f26a21;
  --color-orange-deep: #e85a12;
  --color-navy: #011b3e;
  --color-navy-deep: #011b3e;
  --color-teal: #2a8fb8;
  --color-white: #ffffff;
  --color-text: #1a1a1a;
  --color-muted: rgba(255, 255, 255, 0.72);
  --header-h: 80px;
  --max-w: 1920px;
  --font: "Pretendard", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  color: var(--color-text);
  background: var(--color-navy-deep);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
}

ul,
ol {
  list-style: none;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ----- Header ----- */
.site-header {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
}

.header-inner {
  max-width: var(--max-w);
  height: 100%;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  color: #111;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.04em;
  white-space: nowrap;
}

.gnb {
  display: flex;
  align-items: center;
  gap: 48px;
  flex: 1;
  justify-content: center;
}

.gnb > li {
  position: relative;
}

.gnb > li > a {
  color: #111;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.02em;
  padding: 10px 4px;
  display: block;
  transition: opacity 0.2s;
}

.gnb > li > a:hover,
.gnb > li:hover > a,
.gnb > li.is-active > a {
  opacity: 0.7;
}

.gnb > li > a::after {
  content: "";
  display: block;
  width: 0;
  height: 2px;
  background: #111;
  margin-top: 4px;
  transition: width 0.2s;
}

.gnb > li:hover > a::after,
.gnb > li.is-active > a::after {
  width: 100%;
}

.submenu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 140px;
  padding: 10px 0;
  background: rgba(6, 26, 48, 0.92);
  border-radius: 8px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

@media (hover: hover) and (min-width: 861px) {
  .gnb > li:hover .submenu,
  .gnb > li:focus-within .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
  }
}

.submenu a {
  display: block;
  padding: 8px 18px;
  color: var(--color-white);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  transition: background 0.15s;
}

.submenu a:hover {
  background: rgba(255, 255, 255, 0.08);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.lang-btn {
  min-width: 110px;
  height: 40px;
  padding: 0 20px;
  border-radius: 999px;
  background: var(--color-navy);
  color: var(--color-white);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  transition: background 0.2s, transform 0.15s;
}

.lang-btn:hover {
  background: #0e355c;
}

.lang-btn:active {
  transform: scale(0.98);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  position: relative;
  z-index: 120;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px auto;
  background: #111;
  transition: transform 0.25s, opacity 0.25s;
}

body.nav-open .menu-toggle span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

body.nav-open .menu-toggle span:nth-child(2) {
  opacity: 0;
}

body.nav-open .menu-toggle span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

body.nav-open .menu-toggle span {
  background: var(--color-white);
}

/* ----- Footer ----- */
.site-footer {
  background: var(--color-navy-deep);
  color: var(--color-white);
  padding: 48px 40px 40px;
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 40px;
  align-items: center;
}

.footer-logo {
  color: var(--color-white);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.04em;
  white-space: nowrap;
}

.footer-center {
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 14px;
  font-size: 14px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
}

.footer-links li:not(:last-child)::after {
  content: "|";
  margin-left: 8px;
  opacity: 0.45;
}

.footer-links a:hover {
  text-decoration: underline;
}

.footer-info {
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.7;
}

.footer-info p + p {
  margin-top: 2px;
}

.footer-copy {
  margin-top: 10px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
}

.footer-client img {
  width: 160px;
  height: auto;
  mix-blend-mode: screen;
}

/* ----- Responsive ----- */
@media (max-width: 1024px) {
  .header-inner {
    padding: 0 24px;
  }

  .gnb {
    gap: 28px;
  }

  .gnb > li > a {
    font-size: 15px;
  }

  .logo {
    font-size: 18px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    text-align: center;
    justify-items: center;
    gap: 28px;
  }
}

@media (max-width: 860px) {
  :root {
    --header-h: 64px;
  }

  .menu-toggle {
    display: block;
  }

  .gnb {
    position: fixed;
    inset: 0;
    z-index: 110;
    flex-direction: column;
    justify-content: flex-start;
    align-items: stretch;
    gap: 0;
    padding: 88px 28px 40px;
    background: rgba(6, 26, 48, 0.97);
    transform: translateX(100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
  }

  body.nav-open .gnb {
    transform: translateX(0);
  }

  .gnb > li > a {
    color: var(--color-white);
    font-size: 20px;
    padding: 16px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .gnb > li > a::after {
    display: none;
  }

  .submenu,
  .gnb > li:hover .submenu,
  .gnb > li:focus-within .submenu {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    background: transparent;
    box-shadow: none;
    padding: 0 0 12px 12px;
    min-width: 0;
  }

  .submenu a {
    padding: 10px 0;
    font-size: 15px;
    color: rgba(255, 255, 255, 0.75);
  }

  body.nav-open {
    overflow: hidden;
    touch-action: manipulation;
  }

  .lang-btn {
    min-width: 96px;
    height: 36px;
    font-size: 12px;
  }

  .site-footer {
    padding: 36px 20px 32px;
  }

  .footer-info {
    font-size: 12px;
  }
}