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

html, body { width: 100%; height: 100%; min-width: 1200px; overflow: hidden; background: #050606; color: #f5f5f2; font-family: "Pretendard"; }
a { color: inherit; text-decoration: none; }

button { border: 0; background: none; color: inherit; font: inherit; cursor: pointer; }

.site-header { position: fixed; top: 0; left: 0; z-index: 100; width: 100%; height: 90px; background: rgba(255, 255, 255, 0.08); border-bottom: 1px solid rgba(255, 255, 255, 0.15); backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px); }

.header-inner { display: flex; align-items: center; justify-content: space-between; width: 1200px; height: 100%; margin: 0 auto; }

.logo { display: block; }
.logo img { display: block; width: 120px; height: auto; }

.nav { display: flex; align-items: center; gap: 42px; }
.nav a { color: rgba(255, 255, 255, 0.85); font-size: 15px; font-weight: 600; transition: color 0.2s ease; }
.nav a:hover, .nav a.is-active { color: #fff; }

.hero { position: relative; height: 100vh; overflow: hidden; }
.hero-bg, .hero-overlay { position: absolute; inset: 0; }
.hero-bg__item { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; transform: scale(1.05); transition: opacity 0.8s ease, transform 1s ease; }
.hero-bg__item.is-active { opacity: 1; transform: scale(1); }
.hero-overlay { z-index: 1; background: linear-gradient( 90deg, rgba(0, 0, 0, 0.35), rgba(0, 0, 0, 0.08) ); }
.hero-inner { position: relative; z-index: 2; display: flex; align-items: center; width: 1200px; height: 100vh; margin: 0 auto; }
.hero-title { display: flex; align-items: baseline; gap: 0.18em; font-size: 132px; line-height: 0.9; font-weight: 900; letter-spacing: -0.08em; white-space: nowrap; }
.hero-fixed { flex: none; }

.identity-box { display: inline; font-weight: 900; }
.identity-box::before { content: "["; color: rgba(255, 255, 255, 0.42); }
.identity-box::after { content: "]"; color: rgba(255, 255, 255, 0.42); }
.identity-desc { width: 850px; margin-top: 35px; color: rgba(255, 255, 255, 0.78); font-size: 26px; line-height: 1.5; font-weight: 300; letter-spacing: -0.035em; transition: opacity 0.25s ease, transform 0.25s ease; }
.identity-desc.change { opacity: 0; transform: translateY(10px); }

#identityText { display: inline; transition: opacity 0.25s ease, transform 0.25s ease; }
#identityText.change { opacity: 0; transform: translateY(-20px); }

.more-btn { margin-top: 45px; padding: 14px 24px; border: 1px solid rgba(255, 255, 255, 0.45); border-radius: 100px; background: rgba(255, 255, 255, 0.06); color: #fff; font-weight: 500; transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease; }
.more-btn:hover { background: rgba(255, 255, 255, 0.15); border-color: rgba(255, 255, 255, 0.8); transform: translateY(-2px); }

.hero-pagination { display: flex; align-items: center; gap: 20px; width: max-content; margin-top: 32px; }

.pagination-item { display: flex; align-items: center; gap: 8px; color: rgba(255, 255, 255, 0.38); font-size: 12px; font-weight: 600; letter-spacing: 0.08em; transition: color 0.25s ease; }
.pagination-item i { display: block; width: 54px; height: 2px; background: currentColor; transition: background-color 0.25s ease, transform 0.25s ease; }
.pagination-item:hover, .pagination-item:focus-visible, .pagination-item.is-active { color: #fff; }
.pagination-item:hover i, .pagination-item:focus-visible i { transform: scaleX(1.08); }
.pagination-item.is-active i { background: #fff; }

.scroll-guide { position: absolute; bottom: 24px; left: 50%; z-index: 3; display: flex; flex-direction: column; align-items: center; gap: 8px; color: rgba(255, 255, 255, 0.62); font-size: 10px; font-weight: 600; letter-spacing: 0.18em; transform: translateX(-50%); transition: color 0.25s ease; }
.scroll-guide:hover, .scroll-guide:focus-visible { color: #fff; }
.scroll-guide__line { display: block; width: 1px; height: 28px; overflow: hidden; background: rgba(255, 255, 255, 0.24); }
.scroll-guide__line::after { content: ""; display: block; width: 100%; height: 14px; background: #fff; animation: guideMove 1.6s ease-in-out infinite; }
.scroll-guide__arrow { font-size: 13px; line-height: 1; }

@keyframes guideMove { 0% { opacity: 0; transform: translateY(-16px); } 30% { opacity: 1; } 100% { opacity: 0; transform: translateY(30px); } }
@media (prefers-reduced-motion: reduce) { .scroll-guide__line::after { animation: none; } .hero-bg__item, #identityText, .identity-desc { transition-duration: 0.01ms; } }