:root {
  color-scheme: dark;
  --ink: #fff4dc;
  --muted: #b6bfd2;
  --dim: #7f8aa3;
  --canvas: #090b14;
  --panel: #151828;
  --panel-strong: #1c2134;
  --line: rgba(255, 244, 220, 0.14);
  --cyan: #46dbf3;
  --orange: #ff9838;
  --magenta: #ff4fd8;
  --success: #7ce3a1;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.38);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 14% 2%, rgba(70, 219, 243, 0.14), transparent 28rem),
    radial-gradient(circle at 88% 18%, rgba(255, 79, 216, 0.12), transparent 30rem),
    var(--canvas);
  color: var(--ink);
  font-family: Inter, Pretendard, "Noto Sans KR", system-ui, -apple-system,
    BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--cyan);
  text-underline-offset: 0.2em;
}

a:hover {
  color: #a7f3ff;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--orange);
  outline-offset: 4px;
}

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

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  padding: 0.7rem 1rem;
  transform: translateY(-180%);
  border-radius: 0.6rem;
  background: var(--ink);
  color: var(--canvas);
  font-weight: 800;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(9, 11, 20, 0.88);
  backdrop-filter: blur(18px);
}

.nav-shell,
.page-shell,
.hero,
.section,
.footer-shell {
  width: min(1120px, calc(100% - 2rem));
  margin-inline: auto;
}

.nav-shell {
  display: flex;
  min-height: 4.5rem;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
}

.wordmark {
  color: var(--ink);
  font-size: clamp(1rem, 2.6vw, 1.3rem);
  font-weight: 950;
  letter-spacing: 0.18em;
  text-decoration: none;
}

.wordmark::before {
  content: "";
  display: inline-block;
  width: 0.72rem;
  height: 0.72rem;
  margin-right: 0.62rem;
  transform: rotate(45deg);
  border: 2px solid var(--cyan);
  border-radius: 0.12rem 0.45rem 0.12rem 0.45rem;
  box-shadow: 0 0 18px rgba(70, 219, 243, 0.64);
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.45rem 1rem;
  padding: 0;
  margin: 0;
  list-style: none;
  font-size: 0.9rem;
  font-weight: 700;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
}

.nav-links a[aria-current="page"],
.nav-links a:hover {
  color: var(--ink);
}

.language-link {
  display: inline-flex;
  min-width: 2.45rem;
  min-height: 2.45rem;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 999px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 1.05fr);
  min-height: calc(100svh - 4.5rem);
  align-items: center;
  gap: clamp(2rem, 6vw, 5rem);
  padding-block: clamp(4rem, 9vw, 7rem);
}

.eyebrow,
.status-pill {
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--cyan);
}

.hero h1 {
  max-width: 9ch;
  margin: 0;
  font-size: clamp(3.4rem, 7.2vw, 5.5rem);
  font-weight: 950;
  letter-spacing: -0.07em;
  line-height: 0.88;
}

.hero h1 span {
  display: block;
  margin-top: 0.18em;
  color: transparent;
  font-size: 0.42em;
  letter-spacing: 0.02em;
  line-height: 1.05;
  -webkit-text-stroke: 1px rgba(255, 244, 220, 0.68);
}

.hero-copy {
  max-width: 34rem;
  margin: 1.65rem 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.24rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.9rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  padding: 0.72rem 1.15rem;
  border: 1px solid rgba(70, 219, 243, 0.45);
  border-radius: 0.8rem;
  background: linear-gradient(135deg, rgba(70, 219, 243, 0.2), rgba(70, 219, 243, 0.04));
  color: var(--ink);
  font-weight: 850;
  text-decoration: none;
}

.button.secondary {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--success);
}

.status-pill::before {
  content: "";
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 18px currentColor;
}

.hero-art {
  position: relative;
  padding: clamp(0.5rem, 2vw, 1.2rem);
}

.hero-art::before,
.hero-art::after {
  position: absolute;
  z-index: -1;
  width: 44%;
  aspect-ratio: 1;
  content: "";
  filter: blur(40px);
  opacity: 0.34;
}

.hero-art::before {
  top: 0;
  right: 5%;
  background: var(--magenta);
}

.hero-art::after {
  bottom: 0;
  left: 8%;
  background: var(--cyan);
}

.hero-art img {
  width: 100%;
  border: 1px solid rgba(255, 244, 220, 0.22);
  border-radius: 2rem 0.7rem 2rem 0.7rem;
  box-shadow: var(--shadow);
}

.art-caption {
  margin: 0.7rem 0 0;
  color: var(--dim);
  font-size: 0.78rem;
  text-align: right;
}

.section {
  padding-block: clamp(4rem, 9vw, 7rem);
}

.section + .section {
  border-top: 1px solid var(--line);
}

.section-header {
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(280px, 1fr);
  gap: 2rem;
  align-items: end;
  margin-bottom: 2rem;
}

.section h2,
.page-shell h1 {
  margin: 0;
  font-size: clamp(2rem, 6vw, 4.3rem);
  letter-spacing: -0.045em;
  line-height: 1;
}

.section-header p,
.lede {
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.card,
.notice,
.contact-card {
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: linear-gradient(145deg, rgba(28, 33, 52, 0.98), rgba(21, 24, 40, 0.86));
  box-shadow: 0 14px 44px rgba(0, 0, 0, 0.16);
}

.card {
  min-height: 16rem;
  padding: 1.45rem;
}

.card-number {
  color: var(--orange);
  font-size: 0.76rem;
  font-weight: 950;
  letter-spacing: 0.14em;
}

.card h3 {
  margin: 3rem 0 0.6rem;
  font-size: 1.35rem;
}

.card p,
.card li {
  color: var(--muted);
}

.crew-grid .card:nth-child(1) {
  border-top-color: var(--cyan);
}

.crew-grid .card:nth-child(2) {
  border-top-color: var(--orange);
}

.crew-grid .card:nth-child(3) {
  border-top-color: var(--magenta);
}

.principles {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  padding: 0;
  margin: 0;
  list-style: none;
}

.principles li {
  padding: 1.1rem 1.2rem;
  border-left: 3px solid var(--cyan);
  background: rgba(255, 255, 255, 0.035);
  color: var(--muted);
}

.page-shell {
  padding-block: clamp(3.5rem, 8vw, 6rem);
}

.page-shell > header {
  max-width: 54rem;
  margin-bottom: 3rem;
}

.page-shell h1 {
  margin-bottom: 1.25rem;
}

.meta-line {
  color: var(--dim);
  font-size: 0.9rem;
}

.legal-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 15rem;
  gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
}

.legal-copy {
  min-width: 0;
}

.legal-copy section {
  padding-block: 1.4rem;
  border-top: 1px solid var(--line);
}

.legal-copy h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.35rem, 3vw, 1.8rem);
  line-height: 1.25;
}

.legal-copy h3 {
  margin: 1.3rem 0 0.5rem;
}

.legal-copy p,
.legal-copy li,
.contact-card p {
  color: var(--muted);
}

.legal-copy ul,
.legal-copy ol {
  padding-left: 1.3rem;
}

.legal-copy li + li {
  margin-top: 0.35rem;
}

.legal-copy strong {
  color: var(--ink);
}

.side-nav {
  position: sticky;
  top: 6rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 0.85rem;
  background: rgba(21, 24, 40, 0.72);
}

.side-nav strong {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.side-nav a {
  display: block;
  padding-block: 0.34rem;
  color: var(--muted);
  font-size: 0.9rem;
  text-decoration: none;
}

.side-nav a:hover {
  color: var(--ink);
}

.notice {
  padding: 1.2rem 1.3rem;
  margin: 1.5rem 0;
  border-left: 4px solid var(--orange);
}

.notice p {
  margin: 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.contact-card {
  padding: 1.4rem;
}

.contact-card h2,
.contact-card h3 {
  margin-top: 0;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.18);
}

.footer-shell {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  padding-block: 2.5rem;
  color: var(--dim);
  font-size: 0.82rem;
}

.footer-shell p {
  margin: 0.25rem 0;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  align-content: start;
  justify-content: flex-end;
  gap: 0.4rem 1rem;
}

.footer-links a {
  color: var(--muted);
}

@media (max-width: 860px) {
  .nav-shell {
    min-height: auto;
    padding-block: 0.9rem;
    align-items: flex-start;
  }

  .nav-links {
    max-width: 28rem;
    flex-wrap: wrap;
  }

  .hero,
  .section-header,
  .legal-layout {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-art {
    grid-row: 1;
  }

  .side-nav {
    position: static;
    grid-row: 1;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

  .card {
    min-height: auto;
  }

  .card h3 {
    margin-top: 1.5rem;
  }
}

@media (max-width: 620px) {
  .nav-shell,
  .footer-shell {
    display: block;
  }

  .nav-links {
    justify-content: flex-start;
    margin-top: 0.7rem;
  }

  .hero h1 {
    font-size: clamp(2.8rem, 17vw, 5.5rem);
  }

  .principles,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .footer-links {
    justify-content: flex-start;
    margin-top: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}