/* ==========================================================================
   섹션 1/2 — nav · hero(cinematic) · brand statement · ecosystem(editorial)
   ========================================================================== */

/* --- nav --- */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: var(--z-nav);
  transition: transform var(--dur) var(--ease-expo),
    background-color var(--dur) var(--ease-expo),
    border-color var(--dur) var(--ease-expo);
  border-bottom: 1px solid transparent;
}
.nav.is-hidden {
  transform: translateY(-100%);
}
.nav.is-scrolled {
  background: rgba(244, 241, 234, 0.78);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom-color: var(--color-line);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}
.nav:not(.is-scrolled) .wordmark,
.nav:not(.is-scrolled) .nav__link {
  color: rgba(255, 255, 255, 0.92);
}
.wordmark {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.55rem;
  letter-spacing: -0.03em;
  color: var(--paper-ink);
}
.wordmark .colon {
  color: var(--gold);
}
.nav__links {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.4vw, 2.25rem);
}
.nav__link {
  position: relative;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform var(--dur) var(--ease-expo);
}
.nav__link:hover::after {
  transform: scaleX(1);
}
.nav__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.nav__cta {
  padding: 0.6rem 1.3rem;
  font-size: var(--text-sm);
}
.lang-toggle {
  display: inline-flex;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-pill);
  overflow: hidden;
  font-size: var(--text-xs);
  font-weight: 700;
}
.nav:not(.is-scrolled) .lang-toggle {
  border-color: rgba(255, 255, 255, 0.35);
}
.lang-toggle button {
  padding: 0.35rem 0.62rem;
  color: var(--color-text-muted);
}
.nav:not(.is-scrolled) .lang-toggle button {
  color: rgba(255, 255, 255, 0.7);
}
.lang-toggle button.is-active {
  background: var(--gold);
  color: var(--ink-950);
}

/* --- HERO (cinematic) --- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  background: var(--ink-950);
  color: #fff;
  overflow: hidden;
  padding-bottom: clamp(3rem, 7vw, 6rem);
}
/* 풀블리드 미디어 자리 */
.hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero__media .placeholder {
  width: 100%;
  height: 100%;
  border: none;
  border-radius: 0;
}
.hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
      ellipse 80% 70% at 30% 100%,
      rgba(11, 11, 18, 0.85),
      transparent 70%
    ),
    radial-gradient(ellipse 70% 60% at 80% 0%, rgba(11, 11, 18, 0.7), transparent 65%);
  pointer-events: none;
}
.hero__glow {
  position: absolute;
  z-index: 0;
  width: 60vw;
  height: 60vw;
  max-width: 760px;
  max-height: 760px;
  left: -10vw;
  bottom: -20vw;
  background: radial-gradient(
    circle,
    var(--gold-glow),
    transparent 60%
  );
  filter: blur(40px);
  pointer-events: none;
}
.hero__inner {
  position: relative;
  z-index: 2;
  width: 100%;
}
.hero__eyebrow {
  margin-bottom: 1.75rem;
}
.hero__title {
  margin-bottom: 2rem;
  max-width: 16ch;
}
.hero__title .accent {
  font-style: italic;
}
.hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
}
.hero__lead {
  max-width: 42ch;
}
.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
}
.hero__corner {
  position: absolute;
  z-index: 2;
  top: calc(80px + 2rem);
  right: var(--gutter);
  text-align: right;
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.9;
}

/* --- BRAND STATEMENT (cinematic) --- */
.statement {
  text-align: center;
}
.statement__text {
  font-family: var(--font-serif);
  font-size: clamp(1.7rem, 3.8vw, 3rem);
  line-height: 1.34;
  font-weight: 700;
  max-width: 20ch;
  margin-inline: auto;
  text-wrap: balance;
}
.statement__text .accent {
  font-style: italic;
}

/* --- ECOSYSTEM (editorial) --- */
.eco-list {
  border-top: 1px solid var(--color-line);
}
.eco-row {
  position: relative;
  display: grid;
  grid-template-columns: auto 1.1fr 1.4fr auto;
  align-items: center;
  gap: clamp(1rem, 4vw, 3.5rem);
  padding-block: clamp(1.75rem, 4vw, 3rem);
  border-bottom: 1px solid var(--color-line);
  transition: background-color var(--dur) var(--ease-expo),
    padding-left var(--dur) var(--ease-expo);
}
.eco-row:hover {
  background: var(--paper-2);
  padding-left: clamp(0.5rem, 2vw, 1.5rem);
}
.eco-row__num {
  font-family: var(--font-serif);
  font-size: clamp(1.3rem, 2.2vw, 1.9rem);
  color: var(--gray-500);
  font-weight: 400;
  min-width: 2.5ch;
}
.eco-row:hover .eco-row__num {
  color: var(--gold-dark);
}
.eco-row__name {
  font-family: var(--font-serif);
  font-size: clamp(1.35rem, 2.3vw, 2.1rem);
  font-weight: 700;
  line-height: 1.15;
}
.eco-row__name .sub {
  display: block;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold-dark);
  margin-bottom: 0.5rem;
}
.eco-row__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}
.eco-row__go {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--gold-dark);
  white-space: nowrap;
}
.eco-row__go .arrow {
  transition: transform var(--dur) var(--ease-expo);
}
.eco-row:hover .eco-row__go .arrow {
  transform: translateX(6px);
}
@media (max-width: 860px) {
  .eco-row {
    grid-template-columns: auto 1fr;
    grid-template-areas:
      "num name"
      "num desc"
      "num go";
    row-gap: 0.6rem;
  }
  .eco-row__num {
    grid-area: num;
  }
  .eco-row__name {
    grid-area: name;
  }
  .eco-row__desc {
    grid-area: desc;
  }
  .eco-row__go {
    grid-area: go;
  }
  .eco-row__peek {
    display: none;
  }
}
@media (max-width: 640px) {
  .nav__links {
    display: none;
  }
  .hero__corner {
    display: none;
  }
  .hero {
    align-items: center;
  }
}