/* ═══════════════════════════════════════════
   Global Styles — Reset + Base + Layout
   ═══════════════════════════════════════════ */

/* ─── Reset ─── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
ul, ol { list-style: none; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font: inherit; }

/* ─── Base ─── */
body {
  font-family: var(--font-primary);
  font-size: var(--fs-xl);
  font-weight: var(--fw-base);
  line-height: var(--lh-base);
  color: var(--color-text-dark);
  background: var(--color-surface-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  word-break: keep-all;
  overflow-x: hidden;
}

/* ─── Focus ─── */
:focus-visible {
  outline: 2px solid var(--color-accent-blue);
  outline-offset: 2px;
}

/* ─── Transitions ─── */
a, button, input, select, textarea {
  transition: all var(--motion);
}

/* ─── Utility ─── */
.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;
}
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* ═══ GNB — 세토우치 스타일 ═══ */
.gnb {
  position: relative; top: 0; left: 0; right: 0; z-index: 100;
  background: var(--color-surface-white);
  height: 100px;
  display: flex; align-items: center;
  padding: 0 0 0 42px;
}
.gnb-logo {
  font-size: var(--fs-2xl);
  font-weight: var(--fw-black);
  color: var(--color-text-dark);
  letter-spacing: -0.02em;
  margin-right: auto;
}
.gnb-logo-img { height: 36px; width: auto; display: block; }
.gnb-nav {
  display: flex; gap: 0;
  align-items: center;
  height: 100%;
}
.gnb-nav a {
  font-size: var(--fs-xl);
  font-weight: var(--fw-bold);
  color: var(--color-text-dark);
  letter-spacing: 0.05em;
  padding: 0 clamp(12px, 1.5vw, 24px);
  height: 100%;
  display: flex; align-items: center;
  position: relative;
}
.gnb-nav a::after {
  content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%);
  width: 0; height: 3px; background: var(--color-accent-red);
  transition: width var(--motion);
}
.gnb-nav a:hover { color: var(--color-accent-red); }
.gnb-nav a:hover::after { width: 60%; }
.gnb-cta {
  display: flex; align-items: center; justify-content: center;
  font-size: var(--fs-lg); font-weight: var(--fw-bold);
  color: var(--color-text-dark);
  background: var(--color-accent-yellow);
  padding: 0 clamp(16px, 2vw, 32px);
  height: 100%;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.gnb-cta:hover { background: #eee34a; }

/* MENU button — 세토우치 스타일 (오른쪽 끝) */
.gnb-toggle {
  display: flex;
  flex-direction: column;
  align-items: center; justify-content: center;
  gap: 4px;
  width: 90px; height: 100px;
  background: none; border: none;
  color: var(--color-accent-blue);
  cursor: pointer;
  border-left: 1px solid rgba(29,26,24,0.06);
}
.gnb-toggle-bars {
  display: flex; flex-direction: column; gap: 5px;
}
.gnb-toggle-bars span {
  display: block; width: 24px; height: 2px;
  background: var(--color-accent-blue);
  transition: all 0.3s ease;
}
.gnb-toggle-text {
  font-size: 11px; font-weight: var(--fw-bold);
  letter-spacing: 0.1em;
  margin-top: 6px;
  color: var(--color-accent-blue);
}

/* ═══ MEGA MENU (fullscreen white — Figma ref 355:1730) ═══ */
.mega-menu {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: var(--color-surface-white);
  z-index: 99;
  display: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.mega-menu.is-open {
  display: block;
  opacity: 1;
}
.mega-menu-header {
  height: var(--gnb-height);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 var(--gutter);
  border-bottom: 1px solid rgba(29,26,24,0.06);
}
.mega-menu-close {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  color: var(--color-text-dark);
}
.mega-menu-close svg {
  width: 28px; height: 28px;
  stroke: currentColor; fill: none;
  stroke-width: 2; stroke-linecap: round;
}
.mega-menu-body {
  display: grid;
  grid-template-columns: 280px 1fr;
  height: calc(100vh - var(--gnb-height));
  overflow-y: auto;
}
.mega-menu-main {
  padding: var(--sp-block) var(--gutter);
  border-right: 1px solid rgba(29,26,24,0.06);
}
.mega-menu-main a {
  display: block;
  font-size: var(--fs-2xl); font-weight: var(--fw-bold);
  color: var(--color-text-dark);
  padding: var(--sp-7) 0;
  border-bottom: 1px solid rgba(29,26,24,0.06);
  transition: color var(--motion);
}
.mega-menu-main a:hover { color: var(--color-accent-red); }
.mega-menu-sub {
  padding: var(--sp-block) var(--sp-block);
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--sp-block);
  align-content: start;
}
.mega-menu-group h4 {
  font-size: var(--fs-sm); font-weight: var(--fw-bold);
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--color-text-heading);
  margin-bottom: var(--sp-8);
  padding-bottom: var(--sp-5);
  border-bottom: 2px solid var(--color-accent-red);
}
.mega-menu-group a {
  display: block;
  font-size: var(--fs-lg); color: var(--color-text-dark);
  padding: var(--sp-3) 0;
  transition: color var(--motion);
}
.mega-menu-group a:hover { color: var(--color-accent-red); }
.mega-menu-cta {
  margin-top: var(--sp-block);
}
.mega-menu-sns {
  display: flex; gap: var(--sp-8);
  padding: var(--sp-element) var(--gutter);
  border-top: 1px solid rgba(29,26,24,0.06);
  position: absolute; bottom: 0; left: 0; right: 0;
}
.mega-menu-sns a {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid rgba(29,26,24,0.12); border-radius: 50%;
  color: var(--color-text-dark);
}
.mega-menu-sns a:hover { border-color: var(--color-accent-red); color: var(--color-accent-red); }
.mega-menu-sns svg {
  width: 18px; height: 18px;
  stroke: currentColor; fill: none; stroke-width: 2;
  stroke-linecap: round; stroke-linejoin: round;
}

/* Mobile */
@media (max-width: 768px) {
  .gnb { height: 60px; padding: 0 0 0 16px; }
  .gnb-nav { display: none; }
  .gnb-cta { display: none; }
  .gnb-toggle { width: 60px; height: 60px; }
  .mega-menu-body {
    grid-template-columns: 1fr;
  }
  .mega-menu-main {
    border-right: none;
    border-bottom: 1px solid rgba(29,26,24,0.06);
    padding: var(--sp-element) var(--gutter);
  }
  .mega-menu-main a {
    font-size: var(--fs-xl);
    padding: var(--sp-6) 0;
  }
  .mega-menu-sub {
    padding: var(--sp-element) var(--gutter);
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-element);
  }
}

/* ═══ FOOTER ═══ */
.footer {
  background: var(--color-surface-dark);
  color: rgba(255,255,255,0.8);
  padding: var(--sp-section) var(--gutter);
}
.footer-grid {
  max-width: var(--max-width); margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--sp-block);
}
.footer-brand {
  font-size: var(--fs-3xl); font-weight: var(--fw-black);
  color: var(--color-text-primary); margin-bottom: var(--sp-8);
}
.footer-logo-img { height: 32px; width: auto; display: block; }
.footer-desc {
  font-size: var(--fs-md); opacity: 0.4; line-height: 1.8;
}
.footer-col h4 {
  font-size: var(--fs-sm); font-weight: var(--fw-bold);
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--color-accent-yellow); opacity: 0.6;
  margin-bottom: var(--sp-8);
}
.footer-col a {
  display: block; font-size: var(--fs-md);
  color: rgba(255,255,255,0.5); line-height: 2.2;
}
.footer-col a:hover { color: var(--color-text-primary); }
.footer-bottom {
  max-width: var(--max-width); margin: var(--sp-block) auto 0;
  padding-top: var(--sp-element);
  border-top: 1px solid rgba(255,255,255,0.06);
  font-size: var(--fs-xs); opacity: 0.25; text-align: center;
}
.footer-sns {
  display: flex; gap: var(--sp-8); margin-top: var(--sp-element);
}
.footer-sns a {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 50%; opacity: 0.5;
}
.footer-sns a:hover { opacity: 1; border-color: var(--color-accent-yellow); }
.footer-sns svg {
  width: 16px; height: 16px;
  stroke: currentColor; fill: none;
  stroke-width: 2; stroke-linecap: round;
}

@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* ═══ SECTION SYSTEM ═══ */
.section {
  padding: var(--sp-section) var(--gutter);
}
.section--dark {
  background: var(--color-surface-base);
  color: var(--color-text-primary);
}
.section--muted {
  background: var(--color-surface-muted);
}
.section--red {
  background: var(--color-accent-red);
  color: var(--color-surface-white);
}
.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}
.section-label {
  font-size: var(--fs-xs); font-weight: var(--fw-bold);
  letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--color-accent-red);
  margin-bottom: var(--sp-5);
}
.section--dark .section-label { color: var(--color-accent-yellow); }
.section--red .section-label { color: rgba(255,255,255,0.6); }
.section-title {
  font-family: "jjzukinie", 'Noto Sans KR', sans-serif;
  font-size: var(--fs-3xl); font-weight: var(--fw-bold);
  line-height: var(--lh-tight);
  margin-bottom: var(--sp-5);
}
.section-desc {
  font-size: var(--fs-lg); color: var(--color-text-heading);
  max-width: 600px; margin-bottom: var(--sp-block);
}
.section--dark .section-desc { color: var(--color-text-secondary); }
.section--red .section-desc { color: rgba(255,255,255,0.8); }

/* ═══ SCROLL ANIMATION ═══ */
.reveal {
  opacity: 0; transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.is-visible {
  opacity: 1; transform: translateY(0);
}

/* ─── Page offset (GNB is relative, not fixed) ─── */
main { padding-top: 0; }