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

html,
body {
  width: 100%;
  overflow-x: hidden;
  scroll-behavior: smooth;
}

body {
  font-family: Arial, "Noto Sans KR", sans-serif;
  background: #0b0b0c;
  color: #f5f5f2;
  line-height: 1.6;
  letter-spacing: -0.01em;
}

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

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

/* page */
.page {
  min-height: 100vh;
  background:
    radial-gradient(circle at top, rgba(255, 255, 255, 0.06), transparent 30%),
    linear-gradient(to bottom, #101011 0%, #0b0b0c 100%);
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 36px 20px 96px;
}

/* topbar */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  background: rgba(11, 11, 12, 0.72);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.topbar__inner {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.brand {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.topbar__link {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.82);
  transition: opacity 0.2s ease;
}

.topbar__link:hover {
  opacity: 0.75;
}

/* typography */
.eyebrow,
.section-label,
.hero-card__label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.58);
}

.hero__title {
  margin-top: 10px;
  font-size: clamp(42px, 7vw, 92px);
  line-height: 0.98;
  font-weight: 800;
  letter-spacing: -0.05em;
}

.hero__lead {
  margin-top: 22px;
  max-width: 760px;
  font-size: clamp(20px, 2.4vw, 30px);
  line-height: 1.35;
  color: #ffffff;
}

.hero__desc,
.section-copy,
.hero-card__text,
.info-card p,
.number-panel__copy {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.82);
}

.hero__desc,
.section-copy {
  max-width: 760px;
}

.hero__desc + .hero__desc,
.section-copy + .section-copy {
  margin-top: 14px;
}

.section-title,
.hero-card__title,
.number-panel__title {
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.08;
  font-weight: 800;
  letter-spacing: -0.035em;
}

.section-title {
  margin-top: 10px;
  margin-bottom: 18px;
}

.section-emphasis {
  margin-top: 18px;
  font-size: 18px;
  font-weight: 700;
  color: #ffffff;
}

/* hero */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: 32px;
  align-items: start;
  padding-top: 18px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.hero__actions--center {
  justify-content: center;
}

.hero__side {
  display: grid;
  gap: 16px;
}

.hero-card {
  padding: 24px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-card--accent {
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.08),
    rgba(255, 255, 255, 0.04)
  );
}

.hero-card__title {
  margin-top: 10px;
  margin-bottom: 14px;
}

/* buttons */
.btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 52px;
  padding: 0 20px;
  border-radius: 14px;
  font-weight: 700;
  transition: transform 0.2s ease, opacity 0.2s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn--primary {
  background: #f5f5f2;
  color: #111111;
}

.btn--primary:hover {
  opacity: 0.92;
}

.btn--ghost {
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.02);
  color: #ffffff;
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.06);
}

/* sections */
.content-section,
.object,
.cta-section {
  margin-top: 88px;
}

/* number panel */
.number-panel {
  margin-top: 28px;
  padding: 24px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.number-panel__header {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.number-panel__title {
  font-size: clamp(24px, 3vw, 34px);
}

.number-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.number-card {
  padding: 14px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #ffffff;
  font-size: 15px;
  text-align: left;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* object */
.object__header {
  margin-bottom: 26px;
}

.object-gallery {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.gallery-card {
  border-radius: 22px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 14px;
}

.gallery-card img {
  width: 100%;
  height: auto;
  object-fit: contain;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.03);
}

.gallery-card figcaption {
  margin-top: 12px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.68);
  text-align: center;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.object__info {
  display: grid;
  gap: 16px;
  margin-top: 28px;
}

.info-card {
  padding: 22px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.info-card h3 {
  font-size: 20px;
  margin-bottom: 10px;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

/* cta */
.cta-section {
  padding: 40px 24px;
  border-radius: 28px;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.06),
    rgba(255, 255, 255, 0.03)
  );
  border: 1px solid rgba(255, 255, 255, 0.09);
  text-align: center;
}

.cta-section .section-copy {
  margin-left: auto;
  margin-right: auto;
}

/* responsive */
@media (max-width: 980px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .number-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .object-gallery {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .container {
    padding: 28px 16px 72px;
  }

  .topbar__inner {
    padding: 14px 16px;
  }

  .brand {
    font-size: 16px;
  }

  .content-section,
  .object,
  .cta-section {
    margin-top: 64px;
  }

  .hero__actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .number-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .number-panel,
  .hero-card,
  .info-card,
  .cta-section,
  .gallery-card {
    padding: 18px;
  }
}

@media (max-width: 420px) {
  .number-grid {
    grid-template-columns: 1fr;
  }
}