:root {
  --accent: #111f47;
  --accent-2: #27408b;
  --ink: #16181d;
  --muted: #667080;
  --line: #e7e9ee;
  --soft: #f6f7f9;
  --white: #ffffff;
  --shell: 1320px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}

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

.section-shell {
  width: min(calc(100% - 40px), var(--shell));
  margin: 0 auto;
}

.site-nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(20px, 4vw, 52px);
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid #ececec;
  backdrop-filter: blur(14px);
}

.brand img {
  display: block;
  width: auto;
  height: 28px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(20px, 3vw, 42px);
  font-size: 15px;
  font-weight: 700;
}

.nav-links a,
.nav-cta {
  transition: color 180ms ease, transform 180ms ease, background 180ms ease;
}

.nav-links a:hover {
  color: var(--accent-2);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 999px;
  color: var(--white);
  background: var(--accent);
  font-size: 13px;
  font-weight: 800;
}

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

.nav-toggle {
  display: none;
}

.hero {
  padding-top: 122px;
}

.hero-wordmark {
  overflow: hidden;
  color: var(--accent);
  font-family: Archivo, Pretendard, sans-serif;
  font-size: clamp(58px, 11.5vw, 172px);
  font-weight: 900;
  letter-spacing: -0.055em;
  line-height: 0.82;
  white-space: nowrap;
}

.hero-wordmark span {
  display: inline-block;
  margin-left: 8px;
  font-size: 0.13em;
  vertical-align: top;
  letter-spacing: 0;
}

.hero-meta {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 26px 0 36px;
  color: #7c8490;
  font-family: "IBM Plex Mono", monospace;
  font-size: 13px;
  letter-spacing: 0.16em;
}

.hero-panel,
.capability,
.map-visual,
.factory-visual,
.process-tiles article:nth-child(n + 2) {
  background-color: #0c1633;
  background-image:
    linear-gradient(125deg, rgba(17, 31, 71, 0.76), rgba(8, 14, 31, 0.95) 62%, rgba(5, 9, 22, 0.98)),
    radial-gradient(70% 65% at 78% 8%, rgba(50, 79, 166, 0.5), transparent 62%),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.045) 0 1px, transparent 1px 54px),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.045) 0 1px, transparent 1px 54px);
}

.hero-panel {
  position: relative;
  min-height: clamp(540px, 64vh, 680px);
  overflow: hidden;
  border-radius: 14px;
}

.hero-panel::after {
  content: "";
  position: absolute;
  right: -9%;
  bottom: -26%;
  width: 58%;
  aspect-ratio: 1;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 50%;
  box-shadow: inset 0 0 0 38px rgba(255, 255, 255, 0.025);
}

.hero-badge,
.pill {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
}

.hero-badge {
  position: absolute;
  top: clamp(22px, 3vw, 36px);
  left: clamp(20px, 3vw, 40px);
  z-index: 2;
  padding: 8px 15px;
  color: var(--white);
  background: rgba(255, 255, 255, 0.13);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(8px);
}

.hero-card {
  position: absolute;
  top: clamp(22px, 3vw, 36px);
  right: clamp(20px, 3vw, 40px);
  z-index: 2;
  min-width: 168px;
  padding: 22px 24px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.94);
}

.hero-card strong {
  display: block;
  color: var(--accent);
  font-family: Archivo, sans-serif;
  font-size: 34px;
  font-weight: 900;
  letter-spacing: -0.04em;
}

.hero-card span {
  display: block;
  margin-top: 8px;
  color: #6f7784;
  font-size: 12px;
  line-height: 1.55;
}

.hero-copy {
  position: absolute;
  z-index: 2;
  left: clamp(22px, 4vw, 48px);
  right: clamp(22px, 4vw, 48px);
  bottom: clamp(28px, 5vw, 54px);
  color: var(--white);
}

.eyebrow {
  margin: 0 0 18px;
  color: rgba(255, 255, 255, 0.62);
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  letter-spacing: 0.12em;
}

.hero-copy h1,
.capability h2 {
  margin: 0;
  max-width: 820px;
  font-size: clamp(36px, 5.2vw, 72px);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.06;
  word-break: keep-all;
}

.hero-copy > p:not(.eyebrow) {
  max-width: 560px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 17px;
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 24px;
  border-radius: 999px;
  font-weight: 800;
  transition: transform 180ms ease;
}

.button-light {
  color: var(--accent);
  background: var(--white);
}

.contact-dock {
  display: flex;
  gap: 10px;
}

.contact-dock a {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  color: var(--white);
  font-weight: 800;
}

.intro,
.equipment,
.contact {
  padding: clamp(72px, 9vw, 118px) 0;
}

.pill {
  padding: 7px 15px;
  color: var(--accent);
  background: #eef0f4;
  letter-spacing: 0.01em;
}

.pill-white {
  background: var(--white);
}

.pill-dark {
  color: var(--white);
  background: rgba(255, 255, 255, 0.12);
}

.intro h2,
.section-heading h2,
.equipment h2,
.cert h2,
.contact h2 {
  margin: 24px 0 0;
  max-width: 960px;
  font-size: clamp(28px, 4vw, 50px);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.25;
}

.intro h2 strong {
  color: var(--accent);
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) minmax(300px, 1.2fr);
  gap: clamp(28px, 5vw, 62px);
  align-items: center;
  margin-top: clamp(42px, 6vw, 72px);
}

.factory-visual {
  position: relative;
  overflow: hidden;
  min-height: 350px;
  border-radius: 12px;
  background-image:
    linear-gradient(135deg, rgba(235, 238, 244, 0.9), rgba(184, 195, 212, 0.86)),
    repeating-linear-gradient(90deg, rgba(17, 31, 71, 0.07) 0 1px, transparent 1px 42px),
    repeating-linear-gradient(0deg, rgba(17, 31, 71, 0.07) 0 1px, transparent 1px 42px);
}

.factory-visual::before {
  content: "";
  position: absolute;
  inset: 18% 18% auto;
  height: 42%;
  border: 1px solid rgba(17, 31, 71, 0.2);
  border-radius: 28px 28px 10px 10px;
  transform: skewX(-8deg);
}

.factory-visual span,
.map-visual span,
.process-tiles article span {
  position: absolute;
  left: 18px;
  bottom: 16px;
  color: rgba(255, 255, 255, 0.62);
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.07em;
}

.factory-visual span {
  color: rgba(17, 31, 71, 0.48);
}

.intro-text {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.intro-text p {
  margin: 0;
  color: #4d5663;
  font-size: 16px;
  line-height: 1.88;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  margin-top: clamp(48px, 6vw, 80px);
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--line);
}

.stats-grid article,
.product-card,
.cert-grid article {
  background: var(--white);
}

.stats-grid article {
  padding: 28px 26px;
}

.stats-grid strong,
.dark-stats strong {
  display: block;
  font-family: Archivo, sans-serif;
  font-size: clamp(34px, 3.8vw, 52px);
  font-weight: 900;
  letter-spacing: -0.04em;
}

.stats-grid b {
  display: block;
  margin-top: 8px;
  font-size: 14px;
}

.stats-grid span {
  display: block;
  margin-top: 6px;
  color: #98a0ac;
  font-size: 12px;
}

.section-band {
  padding: clamp(72px, 9vw, 118px) 0;
  background: var(--soft);
}

.section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: clamp(38px, 6vw, 60px);
}

.section-heading p {
  max-width: 380px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}

.product-grid,
.cert-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.product-card {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 12px;
}

.card-index {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border: 1px solid var(--accent);
  border-radius: 50%;
  color: var(--accent);
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
}

.product-illustration {
  position: relative;
  display: grid;
  min-height: 230px;
  place-items: center;
  margin: 22px 0;
  border-radius: 8px;
  background:
    linear-gradient(135deg, #f8f9fb, #edf1f6),
    repeating-linear-gradient(90deg, rgba(17, 31, 71, 0.04) 0 1px, transparent 1px 34px);
}

.product-illustration::before,
.product-illustration::after {
  content: "";
  position: absolute;
  border: 2px solid #b8c2d0;
}

.headrest::before {
  width: 58%;
  height: 42%;
  border-radius: 24px 24px 10px 10px;
}

.headrest::after,
.armrest::after {
  width: 45%;
  height: 27%;
  border-style: dashed;
  border-radius: 14px;
}

.armrest::before {
  width: 62%;
  height: 34%;
  border-radius: 12px;
}

.backboard::before {
  width: 48%;
  height: 58%;
  border-radius: 10px;
}

.backboard::after {
  width: 48%;
  height: 1px;
  border-width: 1px 0 0;
}

.product-card h3 {
  margin: 0 0 4px;
  font-size: 21px;
}

.product-card b {
  display: block;
  color: var(--accent);
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  letter-spacing: 0.04em;
}

.product-card p {
  margin: 14px 0 0;
  color: #596371;
  font-size: 14px;
  line-height: 1.75;
}

.capability {
  padding: clamp(72px, 9vw, 118px) 0;
  color: var(--white);
}

.capability h2 {
  margin-top: 26px;
  max-width: 820px;
  font-size: clamp(30px, 4.2vw, 58px);
}

.dark-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  margin-top: clamp(44px, 6vw, 72px);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.16);
}

.dark-stats article {
  padding: 30px 26px;
  background: rgba(17, 31, 71, 0.86);
}

.dark-stats span {
  display: block;
  margin-top: 6px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 14px;
}

.dark-stats b {
  display: block;
  margin-top: 12px;
  color: rgba(255, 255, 255, 0.5);
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.06em;
}

.process-tiles {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 14px;
  margin-top: 14px;
}

.process-tiles article {
  position: relative;
  min-height: 174px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 12px;
}

.process-tiles article:first-child {
  padding: 26px;
  background: rgba(255, 255, 255, 0.07);
}

.process-tiles h3 {
  margin: 0;
  font-size: 19px;
  line-height: 1.42;
}

.process-tiles a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 22px;
  padding: 10px 16px;
  border-radius: 999px;
  color: var(--accent);
  background: var(--white);
  font-size: 13px;
  font-weight: 800;
}

.equipment-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(32px, 6vw, 72px);
  margin-top: clamp(40px, 5vw, 62px);
}

.equipment-grid h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 20px;
  font-size: 18px;
}

.equipment-grid h3::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--accent);
}

.line-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.line-list li {
  display: grid;
  grid-template-columns: 36px 1fr auto;
  gap: 16px;
  align-items: baseline;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.line-list span {
  color: #a6aeba;
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
}

.line-list b {
  font-size: 15px;
}

.line-list em {
  color: #78818e;
  font-size: 13px;
  font-style: normal;
}

.cert-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.cert-grid article {
  min-height: 170px;
  padding: 28px 24px;
  border: 1px solid var(--line);
  border-radius: 12px;
}

.cert-grid span {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border-radius: 10px;
  color: var(--white);
  background: var(--accent);
  font-weight: 900;
}

.cert-grid h3 {
  margin: 18px 0 6px;
  font-size: 18px;
}

.cert-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
  align-items: stretch;
  margin-top: clamp(40px, 5vw, 58px);
}

.map-visual {
  position: relative;
  min-height: 390px;
  overflow: hidden;
  border-radius: 14px;
}

.map-visual::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 46%;
  width: 18px;
  height: 18px;
  border: 2px solid var(--white);
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 8px rgba(255, 255, 255, 0.24), 0 0 0 18px rgba(39, 64, 139, 0.22);
  transform: translate(-50%, -50%);
}

.contact-list {
  display: flex;
  flex-direction: column;
  justify-content: center;
  margin: 0;
}

.contact-list div {
  display: grid;
  grid-template-columns: 104px 1fr;
  gap: 22px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.contact-list dt {
  color: var(--accent);
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.contact-list dd {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
}

.site-footer {
  padding: clamp(52px, 6vw, 80px) 0 40px;
  color: rgba(255, 255, 255, 0.66);
  background: var(--accent);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 32px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.footer-top img {
  width: auto;
  height: 28px;
}

.footer-top div {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(20px, 3vw, 40px);
  font-size: 14px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 28px;
  color: rgba(255, 255, 255, 0.46);
  font-size: 13px;
  line-height: 1.7;
}

.footer-bottom p {
  margin: 0;
}

.footer-bottom p:last-child {
  font-family: "IBM Plex Mono", monospace;
  letter-spacing: 0.05em;
}

@media (max-width: 980px) {
  .nav-toggle {
    display: grid;
    width: 42px;
    height: 42px;
    place-items: center;
    border: 0;
    border-radius: 50%;
    background: var(--accent);
  }

  .nav-toggle span {
    width: 18px;
    height: 2px;
    background: var(--white);
  }

  .nav-links,
  .nav-cta {
    display: none;
  }

  .site-nav.is-open {
    height: auto;
    min-height: 72px;
    flex-wrap: wrap;
    padding-bottom: 18px;
  }

  .site-nav.is-open .nav-links {
    display: grid;
    flex-basis: 100%;
    gap: 4px;
    order: 3;
    padding-top: 14px;
  }

  .site-nav.is-open .nav-links a {
    padding: 12px 0;
    border-top: 1px solid var(--line);
  }

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

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

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

  .process-tiles {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .section-shell {
    width: min(calc(100% - 32px), var(--shell));
  }

  .hero {
    padding-top: 104px;
  }

  .hero-meta {
    font-size: 11px;
    line-height: 1.5;
  }

  .hero-panel {
    min-height: 590px;
  }

  .hero-copy h1 {
    font-size: 32px;
    line-height: 1.16;
  }

  .hero-card {
    top: 74px;
    left: 20px;
    right: auto;
    min-width: 146px;
    padding: 16px 18px;
  }

  .hero-card strong {
    font-size: 28px;
  }

  .hero-actions,
  .section-heading,
  .footer-top,
  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }

  .contact-dock {
    display: none;
  }

  .stats-grid,
  .dark-stats,
  .cert-grid {
    grid-template-columns: 1fr;
  }

  .line-list li,
  .contact-list div {
    grid-template-columns: 1fr;
    gap: 6px;
  }
}