/* ═══════════════════════════════════════
   Landing base — layout shell
   구조·레이아웃. 색·장식은 theme.css
═══════════════════════════════════════ */

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

html { scroll-behavior: smooth; overflow-x: clip; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  line-height: var(--line-height, 1.75);
  font-size: var(--body-size, 18px);
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
  max-width: 100%;
}

img { display: block; max-width: 100%; }
a { color: inherit; }

a[href],
button:not(:disabled),
summary,
label[for],
[role="button"] {
  cursor: pointer;
}

:root {
  --container-max: 768px;
}
.container {
  max-width: var(--container-max, 768px);
  margin: 0 auto;
  padding: 0 var(--container-pad, 24px);
}

/* ── Hero ── */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  min-height: 100svh;
}
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero__bg img,
.hero__poster {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero__videos {
  position: absolute;
  inset: 0;
  z-index: 1;
}
.hero__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  background: #0a0c10;
}
.hero__video.is-active {
  opacity: 1;
  visibility: visible;
}
.hero__poster {
  position: absolute;
  inset: 0;
  z-index: 0;
  transition: opacity 0.4s ease;
}
.hero__poster.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.hero__overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
}
@media (prefers-reduced-motion: reduce) {
  .hero__videos {
    display: none;
  }
}
.hero__inner {
  position: relative;
  z-index: 2;
  width: 100%;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--hero-pad-y, 48px) var(--hero-pad-x, 0);
  box-sizing: border-box;
}
.hero__inner .container {
  width: 100%;
  margin: 0 auto;
}
.hero__eyebrow { margin-bottom: var(--hero-eyebrow-mb, 32px); }
.hero__title {
  margin-bottom: var(--hero-title-mb, 24px);
  font-family: 'Pretendard Variable', Pretendard, -apple-system, sans-serif;
  font-weight: 900;
  font-size: clamp(42px, 7vw, 68px);
  line-height: 1.2;
  letter-spacing: 0;
  color: var(--hero-title-color, #fff);
  text-align: center;
}
.hero__title em { font-style: normal; }
.hero-subject-reel {
  --hero-subject-slot: 1.2em;
  display: block;
  width: 100%;
  height: var(--hero-subject-slot);
  overflow: hidden;
  line-height: 1.2;
  text-align: center;
}
.hero-subject-reel__track {
  display: flex;
  flex-direction: column;
  transition: transform 0.42s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}
.hero-subject-reel__item {
  display: block;
  height: var(--hero-subject-slot);
  line-height: 1.2;
  flex-shrink: 0;
  white-space: nowrap;
  text-align: center;
}
@media (prefers-reduced-motion: reduce) {
  .hero-subject-reel__track {
    transition: none;
  }
}
.hero__title-br--mobile {
  display: none;
}
.hero__title-space {
  display: inline;
}
@media (max-width: 719px) {
  .hero__title-br--mobile {
    display: block;
  }
  .hero__title-space {
    display: none;
  }
}
.hero__subtitle {
  margin-bottom: var(--hero-subtitle-mb, 20px);
  margin-left: auto;
  margin-right: auto;
  max-width: var(--hero-subtitle-max, none);
}
.hero__cta-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.cta {
  display: inline-block;
  text-decoration: none;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, filter 0.25s ease;
}
button.cta {
  border: none;
  cursor: pointer;
  font-family: inherit;
  appearance: none;
  -webkit-appearance: none;
}
.cta:hover { transform: translateY(var(--cta-hover-y, -2px)); }
.cta-meta { font-size: var(--cta-meta-size, 14px); }

.section { padding: var(--section-pad-y, 80px) 0; }

.section__tag {
  display: block;
  width: fit-content;
  max-width: 100%;
  margin-top: 0;
  margin-bottom: 6px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
  font-family: 'Pretendard Variable', Pretendard, -apple-system, sans-serif;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}
.section__tag + .section__title {
  padding-top: 0;
  margin-top: 0;
}
.section__title {
  font-family: 'Pretendard Variable', Pretendard, -apple-system, sans-serif;
  font-weight: 800;
  font-size: clamp(28px, 4.2vw, 40px);
  line-height: 1.25;
  letter-spacing: -0.03em;
  color: var(--ink);
  text-align: center;
  padding-top: var(--section-title-pt, 0);
  margin-bottom: var(--section-title-mb, 44px);
}
.section__title .hl { font-style: normal; }
.section__title-br--mobile {
  display: none;
}
.section__title-space {
  display: inline;
}
@media (max-width: 719px) {
  .section__title-br--mobile {
    display: block;
  }
  .section__title-space {
    display: none;
  }
}
.section__lead {
  text-align: center;
  margin-top: calc(var(--section-title-mb, 44px) * -0.5);
  margin-bottom: 32px;
}
.ot-quote { display: block; }
.ot-dialogue {
  display: flex;
  flex-direction: column;
  gap: var(--ot-dialogue-gap, 16px);
}
.quote-block--turn {
  align-self: flex-start;
  max-width: var(--ot-turn-max-width, 94%);
  margin-left: var(--ot-turn-offset-left, 0);
  margin-right: auto;
  text-align: left;
}
.quote-block--turn-alt {
  align-self: flex-end;
  max-width: var(--ot-turn-max-width, 94%);
  margin-left: auto;
  margin-right: var(--ot-turn-offset-right, 0);
  text-align: right;
}
.quote-block--turn p strong { font-weight: 700; }

.pillars {
  display: grid;
  gap: var(--pillar-gap, 20px);
}
.pillar__num { display: block; }
.pillar__title { margin-bottom: 12px; line-height: 1.45; }
.pillar__text { line-height: 1.75; }
.pillar__text strong { font-weight: 700; }