@import url("https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@500;700&family=Noto+Sans+KR:wght@300;400;500;700&display=swap");

:root {
  --bg: #edf2f6;
  --surface: #ffffff;
  --ink: #102332;
  --ink-soft: #435b6f;
  --navy: #0f3658;
  --teal: #0f7d88;
  --accent: #ff8f45;
  --line: rgba(15, 54, 88, 0.14);
  --shadow: 0 20px 42px rgba(13, 40, 62, 0.15);
  --radius-lg: 22px;
  --radius-md: 14px;
  --container: min(1160px, calc(100% - 2.4rem));
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Noto Sans KR", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 92% 8%, rgba(15, 125, 136, 0.14), transparent 36%),
    radial-gradient(circle at 8% 24%, rgba(255, 143, 69, 0.16), transparent 30%),
    var(--bg);
  line-height: 1.5;
}

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

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 30;
  padding: 0.95rem 0;
  background: linear-gradient(to bottom, rgba(7, 24, 38, 0.72), rgba(7, 24, 38, 0.2), rgba(7, 24, 38, 0));
}

.header-frame {
  width: var(--container);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.38rem 0;
  color: #ecf4fa;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}

.brand-mark {
  width: 2.15rem;
  height: 2.15rem;
  border-radius: 0.62rem;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  font-family: "Barlow Condensed", sans-serif;
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #f1f7fc;
  background: rgba(8, 37, 56, 0.28);
  border: 1px solid rgba(214, 236, 250, 0.44);
  backdrop-filter: blur(3px);
}

.brand-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
  line-height: 1.05;
}

.brand-ko {
  font-family: "Barlow Condensed", sans-serif;
  font-size: 1.32rem;
  letter-spacing: 0.02em;
  color: #f2f8fc;
}

.brand-en {
  font-size: 0.62rem;
  opacity: 0.82;
  letter-spacing: 0.14em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: rgba(226, 240, 250, 0.88);
}

.main-nav {
  display: flex;
  align-items: center;
  margin-left: auto;
  gap: 0.22rem;
  padding: 0.24rem;
  border-radius: 999px;
  border: 1px solid rgba(214, 236, 250, 0.28);
  background: rgba(7, 29, 45, 0.26);
  backdrop-filter: blur(6px);
}

.main-nav a {
  display: inline-flex;
  align-items: center;
  gap: 0.42rem;
  min-height: 2rem;
  border-radius: 999px;
  padding: 0 0.76rem;
  color: #e7f2f9;
  font-size: 0.84rem;
  transition: background 0.2s ease, color 0.2s ease;
}

.main-nav a span {
  font-family: "Barlow Condensed", sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: rgba(196, 224, 240, 0.88);
}

.main-nav a:hover {
  background: rgba(238, 248, 255, 0.16);
}

.main-nav a.is-current {
  background: rgba(240, 249, 255, 0.22);
  color: #f8fcff;
  font-weight: 700;
}

.main-nav a.is-current span {
  color: rgba(233, 246, 255, 0.96);
}

.hero {
  position: relative;
  min-height: 100vh;
  display: grid;
  align-items: end;
  padding: 8.8rem 1.2rem 2rem;
  isolation: isolate;
}

.hero-stage {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(120deg, rgba(5, 20, 34, 0.7), rgba(8, 28, 45, 0.35) 45%, rgba(9, 45, 64, 0.7)),
    url("sample-image-1.png") center / cover no-repeat;
  z-index: -2;
  transition: background-image 0.65s ease;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(to top, rgba(7, 20, 33, 0.82) 8%, rgba(7, 20, 33, 0.35) 48%, rgba(7, 20, 33, 0.78)),
    repeating-linear-gradient(
      to right,
      rgba(255, 255, 255, 0.02) 0,
      rgba(255, 255, 255, 0.02) 1px,
      transparent 1px,
      transparent 78px
    );
}

.hero-content {
  width: var(--container);
  margin: 0 auto;
  color: #f4f8fb;
  max-width: 66rem;
}

.hero-label {
  font-family: "Barlow Condensed", sans-serif;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(226, 241, 253, 0.92);
  font-size: 0.94rem;
}

.eyebrow {
  font-family: "Barlow Condensed", sans-serif;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal);
  font-size: 0.94rem;
}

.hero-content h1 {
  margin: 0.5rem 0 0.6rem;
  font-family: "Barlow Condensed", sans-serif;
  font-size: clamp(2.3rem, 6vw, 5.7rem);
  line-height: 0.96;
  letter-spacing: 0.02em;
}

.hero-content p {
  margin: 0;
  max-width: 48rem;
  font-size: clamp(1rem, 1.8vw, 1.2rem);
}

.hero-meta {
  margin-top: 0.85rem;
  color: rgba(238, 245, 250, 0.85);
  font-size: 0.94rem;
}

.hero-actions {
  margin-top: 1.35rem;
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.95rem;
  padding: 0 1.1rem;
  border-radius: 999px;
  font-size: 0.94rem;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

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

.btn-primary {
  background: var(--accent);
  color: #1f1005;
  box-shadow: 0 10px 24px rgba(255, 143, 69, 0.28);
}

.btn-ghost {
  border: 1px solid rgba(236, 248, 255, 0.6);
  color: #f1f7fc;
  background: rgba(7, 26, 40, 0.24);
}

.hero-tabs {
  width: var(--container);
  margin: 2rem auto 0.2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.hero-tab {
  border: 1px solid rgba(244, 251, 255, 0.42);
  background: rgba(7, 26, 40, 0.34);
  color: #f2f7fc;
  border-radius: 999px;
  font-size: 0.86rem;
  padding: 0.54rem 0.95rem;
  cursor: pointer;
  transition: background 0.25s ease, transform 0.25s ease;
}

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

.hero-tab.is-active {
  border-color: transparent;
  background: rgba(255, 143, 69, 0.95);
  color: #1b130e;
  font-weight: 700;
}

.scroll-hint {
  justify-self: center;
  margin-top: 0.45rem;
  font-family: "Barlow Condensed", sans-serif;
  color: rgba(236, 247, 255, 0.76);
  letter-spacing: 0.2em;
  font-size: 0.82rem;
  animation: bob 1.4s ease-in-out infinite;
}

.page-main {
  padding-top: 7.4rem;
}

.page-hero {
  position: relative;
  width: var(--container);
  margin: 0 auto;
  padding: clamp(4.6rem, 8vw, 6rem) clamp(1rem, 3vw, 2rem) 2.6rem;
  border-radius: 1.35rem;
  border: 1px solid rgba(224, 241, 251, 0.28);
  background:
    linear-gradient(145deg, rgba(7, 23, 37, 0.86), rgba(8, 38, 56, 0.73)),
    url("https://source.unsplash.com/1600x900/?shipyard,dock&sig=31") center / cover;
  box-shadow: var(--shadow);
  color: #edf7fd;
}

.page-hero h1 {
  margin: 0.36rem 0 0.6rem;
  font-family: "Barlow Condensed", sans-serif;
  font-size: clamp(2rem, 4.5vw, 3.8rem);
  line-height: 0.98;
  color: #f7fcff;
}

.page-hero p {
  margin: 0;
  max-width: 58rem;
  color: rgba(234, 246, 253, 0.88);
}

.page-hero .eyebrow,
.contact-card .eyebrow {
  color: rgba(229, 242, 252, 0.92);
}

.page-subnav {
  width: var(--container);
  margin: 1rem auto 0.6rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-subnav a {
  min-height: 2.2rem;
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  border: 1px solid rgba(16, 35, 50, 0.12);
  padding: 0 0.92rem;
  background: rgba(255, 255, 255, 0.88);
  color: var(--ink-soft);
  font-size: 0.88rem;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-subnav a:hover {
  background: rgba(15, 54, 88, 0.08);
  color: var(--navy);
  border-color: rgba(15, 54, 88, 0.2);
}

@keyframes bob {
  0% {
    transform: translateY(0);
    opacity: 0.8;
  }
  50% {
    transform: translateY(4px);
    opacity: 1;
  }
  100% {
    transform: translateY(0);
    opacity: 0.8;
  }
}

.panel {
  width: var(--container);
  margin: 0 auto;
  padding: 5rem 0 4rem;
}

.panel-tight {
  padding-top: 2.2rem;
  padding-bottom: 1.8rem;
}

.panel-head h2 {
  margin: 0.42rem 0 0;
  font-family: "Barlow Condensed", sans-serif;
  font-size: clamp(1.95rem, 3.1vw, 3.25rem);
  line-height: 1.05;
  color: var(--navy);
}

.panel-copy {
  max-width: 52rem;
  color: var(--ink-soft);
}

.media-card {
  margin-top: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 0.7rem;
}

.about-video {
  width: 100%;
  aspect-ratio: 16 / 9;
  display: block;
  border-radius: calc(var(--radius-lg) - 6px);
  background: #041727;
}

.product-grid {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

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

.product-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.product-card img {
  width: 100%;
  height: 14.5rem;
  object-fit: cover;
  display: block;
}

.card-body {
  padding: 1rem;
}

.card-body h3 {
  margin: 0;
  font-size: 1.05rem;
  color: var(--navy);
}

.card-body p {
  margin: 0.44rem 0 0;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.panel-alt {
  margin-top: 0.5rem;
  background: linear-gradient(170deg, rgba(255, 255, 255, 0.75), rgba(233, 242, 247, 0.95));
  border: 1px solid var(--line);
  border-radius: 2rem;
  padding: 4.6rem clamp(1rem, 3vw, 2.5rem);
}

.cap-grid {
  margin-top: 1.8rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.95rem;
}

.cap-card {
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 1rem;
}

.cap-card h3 {
  margin: 0;
  color: var(--navy);
  font-size: 1.08rem;
}

.cap-card p {
  margin: 0.55rem 0 0;
  color: var(--ink-soft);
  font-size: 0.93rem;
}

.metric-row {
  margin-top: 1.3rem;
  padding: 0.8rem;
  border-radius: var(--radius-md);
  background: rgba(14, 58, 92, 0.92);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.6rem;
}

.metric {
  border: 1px solid rgba(216, 236, 248, 0.16);
  border-radius: 10px;
  padding: 0.85rem;
  color: #eaf4fb;
}

.metric strong {
  display: block;
  font-family: "Barlow Condensed", sans-serif;
  font-size: 1.7rem;
  letter-spacing: 0.01em;
  color: #ffffff;
}

.metric span {
  font-size: 0.87rem;
  color: rgba(238, 246, 252, 0.88);
}

.timeline {
  margin-top: 1.9rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.timeline-item {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 1rem 1rem 1rem 3.7rem;
  box-shadow: 0 14px 24px rgba(12, 43, 66, 0.09);
}

.timeline-item .step {
  position: absolute;
  left: 1rem;
  top: 0.95rem;
  width: 2rem;
  height: 2rem;
  border-radius: 0.6rem;
  display: grid;
  place-items: center;
  font-family: "Barlow Condensed", sans-serif;
  font-size: 0.98rem;
  color: #f6fbff;
  background: linear-gradient(140deg, var(--teal), #0d5f7f);
}

.timeline-item h3 {
  margin: 0;
  color: var(--navy);
  font-size: 1.03rem;
}

.timeline-item p {
  margin: 0.4rem 0 0;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.panel-contact {
  padding-bottom: 5.4rem;
}

.contact-card {
  background:
    linear-gradient(130deg, rgba(17, 66, 100, 0.95), rgba(11, 40, 64, 0.93)),
    url("https://source.unsplash.com/1600x900/?ship-building,dock&sig=19") center / cover;
  border-radius: 1.8rem;
  padding: clamp(1.3rem, 3vw, 2.8rem);
  color: #eff8ff;
  border: 1px solid rgba(207, 233, 250, 0.23);
  box-shadow: var(--shadow);
}

.contact-card h2 {
  margin: 0.5rem 0 0.4rem;
  font-family: "Barlow Condensed", sans-serif;
  font-size: clamp(2rem, 4vw, 3.1rem);
  line-height: 1.03;
}

.contact-card p {
  margin: 0;
  max-width: 40rem;
}

.contact-meta {
  margin-top: 1rem;
  padding-top: 0.9rem;
  border-top: 1px solid rgba(218, 239, 252, 0.34);
  display: grid;
  gap: 0.2rem;
}

.contact-meta strong {
  margin-right: 0.45rem;
}

.contact-meta a {
  color: #f8fbff;
  text-decoration: underline;
  text-decoration-color: rgba(232, 245, 254, 0.6);
  text-decoration-thickness: 1px;
}

.meta-divider {
  margin: 0 0.4rem;
  opacity: 0.85;
}

.link-grid {
  margin-top: 1.9rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
}

.link-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: 0 12px 22px rgba(12, 43, 66, 0.1);
  padding: 1.1rem;
}

.link-card h3 {
  margin: 0;
  color: var(--navy);
  font-size: 1.02rem;
}

.link-card p {
  margin: 0.5rem 0 0;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.link-card a {
  display: inline-flex;
  margin-top: 0.82rem;
  color: var(--teal);
  font-size: 0.9rem;
  font-weight: 600;
}

.map-box {
  min-height: 20rem;
  border-radius: var(--radius-md);
  border: 1px dashed rgba(15, 54, 88, 0.35);
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.82);
  color: var(--ink-soft);
}

.reveal,
.reveal-item {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.8s ease,
    transform 0.8s cubic-bezier(0.2, 0.7, 0.1, 1);
  transition-delay: var(--stagger, 0s);
}

.reveal.is-visible,
.reveal-item.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1080px) {
  .header-frame {
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 0.56rem;
  }

  .main-nav {
    width: 100%;
    margin-left: 0;
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
  }

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

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

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

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

@media (max-width: 1080px) {
  .main-nav::-webkit-scrollbar {
    display: none;
  }
}

@media (max-width: 740px) {
  :root {
    --container: min(1160px, calc(100% - 1.2rem));
  }

  .site-header {
    padding: 0.72rem 0;
  }

  .page-main {
    padding-top: 8.3rem;
  }

  .header-frame {
    padding: 0.14rem 0;
  }

  .brand-mark {
    width: 2.1rem;
    height: 2.1rem;
    font-size: 1rem;
  }

  .brand-ko {
    font-size: 1.2rem;
  }

  .brand-en {
    font-size: 0.57rem;
    letter-spacing: 0.12em;
  }

  .main-nav {
    gap: 0.2rem;
    padding: 0.22rem;
    border-radius: 0.8rem;
  }

  .main-nav a {
    font-size: 0.77rem;
    min-height: 1.88rem;
    padding: 0 0.58rem;
  }

  .main-nav a span {
    font-size: 0.62rem;
  }

  .hero {
    padding-top: 10.5rem;
  }

  .hero-tabs {
    margin-top: 1.35rem;
  }

  .hero-tab {
    font-size: 0.8rem;
  }

  .product-grid,
  .product-grid-two,
  .link-grid,
  .cap-grid,
  .metric-row {
    grid-template-columns: 1fr;
  }

  .product-card img {
    height: 12.6rem;
  }

  .timeline-item {
    padding-left: 3.3rem;
  }
}

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

  .reveal,
  .reveal-item,
  .scroll-hint,
  .btn,
  .hero-tab {
    transition: none;
    animation: none;
    transform: none;
  }

  .reveal,
  .reveal-item {
    opacity: 1;
  }
}