:root {
  --ink: #18202a;
  --muted: #607083;
  --paper: #f7f8f4;
  --line: rgba(24, 32, 42, 0.13);
  --white: #ffffff;
  --teal: #1b8c91;
  --red: #e94c3d;
  --lime: #b4c843;
  --gold: #f1b945;
  --shadow: 0 24px 70px rgba(18, 31, 45, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Noto Sans KR", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

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

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 58px);
  color: var(--white);
  transition: background 180ms ease, color 180ms ease, box-shadow 180ms ease;
}

.site-header.is-scrolled {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 12px 36px rgba(18, 31, 45, 0.1);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: max-content;
  font-size: 17px;
  font-weight: 800;
}

.brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-size: 18px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(14px, 3vw, 34px);
  font-size: 14px;
  font-weight: 700;
}

.lang-link {
  display: inline-grid;
  min-width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-size: 12px;
}

.hero {
  position: relative;
  min-height: 92vh;
  overflow: hidden;
  display: grid;
  align-items: center;
  padding: 120px clamp(20px, 6vw, 86px) 82px;
  color: var(--white);
}

.hero-media,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-media {
  background-image: url("assets/estation-hero.png");
  background-position: center;
  background-size: cover;
  transform: scale(1.02);
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(9, 15, 22, 0.88) 0%, rgba(9, 15, 22, 0.7) 34%, rgba(9, 15, 22, 0.24) 72%, rgba(9, 15, 22, 0.12) 100%),
    linear-gradient(180deg, rgba(9, 15, 22, 0.36), rgba(9, 15, 22, 0.46));
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--red);
  font-size: 13px;
  font-weight: 800;
  line-height: 1.4;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #ffdd83;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 22px;
  font-size: clamp(62px, 11vw, 150px);
  line-height: 0.86;
  font-weight: 800;
}

.hero-copy {
  max-width: 650px;
  margin-bottom: 34px;
  color: rgba(255, 255, 255, 0.88);
  font-size: clamp(18px, 2.2vw, 26px);
  font-weight: 500;
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 800;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  color: var(--white);
  background: var(--red);
}

.button.ghost {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.52);
  background: rgba(255, 255, 255, 0.08);
}

.button.dark {
  background: var(--ink);
}

.scroll-cue {
  position: absolute;
  right: clamp(20px, 4vw, 58px);
  bottom: 32px;
  z-index: 2;
  display: grid;
  width: 42px;
  height: 66px;
  place-items: start center;
  border: 1px solid rgba(255, 255, 255, 0.48);
  border-radius: 999px;
}

.scroll-cue span {
  width: 6px;
  height: 6px;
  margin-top: 13px;
  border-radius: 50%;
  background: var(--white);
  animation: scrollDot 1.6s ease-in-out infinite;
}

.section {
  padding: clamp(72px, 9vw, 128px) clamp(20px, 6vw, 86px);
}

.section-inner {
  width: min(1180px, 100%);
  margin: 0 auto;
}

.section-heading {
  max-width: 790px;
  margin-bottom: clamp(34px, 5vw, 58px);
}

.section-heading.compact {
  margin-bottom: 0;
}

.section-heading h2,
.contact-inner h2 {
  margin-bottom: 18px;
  font-size: clamp(34px, 5vw, 64px);
  line-height: 1.08;
  font-weight: 800;
}

.section-heading p,
.contact-inner p {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.8;
}

.brand-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.brand-card {
  position: relative;
  min-height: 220px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 6px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 1px 0 rgba(18, 31, 45, 0.04);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.brand-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent), transparent 58%);
  opacity: 0.16;
}

.brand-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}

.brand-card strong,
.brand-card span {
  position: relative;
}

.brand-card strong {
  font-size: clamp(20px, 2vw, 28px);
  line-height: 1.08;
  font-weight: 800;
}

.brand-card > span:last-child {
  color: var(--muted);
  font-size: 15px;
  font-weight: 700;
}

.card-index {
  position: absolute;
  top: 22px;
  left: 24px;
  color: rgba(24, 32, 42, 0.34);
  font-size: 13px;
  font-weight: 800;
}

.stylev {
  --accent: var(--red);
}

.recruites {
  --accent: var(--teal);
}

.deskorigin {
  --accent: var(--gold);
}

.airways {
  --accent: #4e89d8;
}

.airs {
  --accent: var(--lime);
}

.taskbox {
  --accent: #9b6bd3;
}

.shots {
  --accent: #2d3138;
}

.brand-card:nth-child(1),
.brand-card:nth-child(3) {
  grid-column: span 2;
}

.approach-section {
  background: #172029;
  color: var(--white);
}

.approach-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(36px, 6vw, 86px);
  align-items: start;
}

.approach-section .section-heading p {
  color: #ffdd83;
}

.approach-list {
  display: grid;
  gap: 14px;
}

.approach-list article {
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
}

.approach-list span {
  color: var(--gold);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.approach-list h3 {
  margin: 10px 0 10px;
  font-size: 24px;
}

.approach-list p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 16px;
  line-height: 1.75;
}

.contact-section {
  padding: clamp(76px, 11vw, 138px) clamp(20px, 6vw, 86px);
  background:
    linear-gradient(135deg, rgba(27, 140, 145, 0.14), transparent 42%),
    linear-gradient(315deg, rgba(233, 76, 61, 0.13), transparent 44%),
    var(--white);
}

.contact-inner {
  width: min(920px, 100%);
  margin: 0 auto;
  text-align: center;
}

.contact-inner p {
  margin: 0 auto 28px;
  max-width: 720px;
}

.site-footer {
  padding: 34px clamp(20px, 6vw, 86px);
  color: rgba(255, 255, 255, 0.72);
  background: #101820;
}

.footer-inner {
  width: min(1180px, 100%);
  margin: 0 auto;
  display: grid;
  gap: 12px;
}

.footer-inner strong {
  color: var(--white);
  font-size: 18px;
  font-weight: 800;
}

.footer-info {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  font-size: 14px;
  line-height: 1.7;
}

.footer-info a {
  color: var(--white);
  font-weight: 800;
}

.footer-info span + span {
  position: relative;
}

.footer-info span + span::before {
  content: "";
  position: absolute;
  left: -10px;
  top: 0.55em;
  width: 1px;
  height: 0.9em;
  background: rgba(255, 255, 255, 0.24);
}

.site-footer p {
  margin: 0;
  color: rgba(255, 255, 255, 0.5);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
}

@keyframes scrollDot {
  0%,
  100% {
    transform: translateY(0);
    opacity: 0.45;
  }

  50% {
    transform: translateY(24px);
    opacity: 1;
  }
}

@media (max-width: 900px) {
  .site-header {
    padding: 14px 18px;
  }

  .nav-links {
    gap: 12px;
    font-size: 13px;
  }

  .hero {
    min-height: 88vh;
    padding-top: 112px;
  }

  .hero-overlay {
    background:
      linear-gradient(90deg, rgba(9, 15, 22, 0.9) 0%, rgba(9, 15, 22, 0.66) 62%, rgba(9, 15, 22, 0.3) 100%),
      linear-gradient(180deg, rgba(9, 15, 22, 0.38), rgba(9, 15, 22, 0.5));
  }

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

  .brand-card:nth-child(1),
  .brand-card:nth-child(3) {
    grid-column: span 1;
  }

  .approach-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .brand span:last-child {
    display: none;
  }

  .nav-links a:nth-child(2) {
    display: none;
  }

  .nav-links {
    gap: 10px;
  }

  .lang-link {
    min-width: 30px;
    height: 30px;
    font-size: 11px;
  }

  h1 {
    font-size: clamp(58px, 18vw, 92px);
  }

  .hero-copy {
    font-size: 17px;
  }

  .hero-actions {
    display: grid;
  }

  .button {
    width: 100%;
  }

  .scroll-cue {
    display: none;
  }

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

  .brand-card {
    min-height: 172px;
  }

  .footer-info {
    display: grid;
    gap: 4px;
  }

  .footer-info span + span::before {
    display: none;
  }
}