:root {
  --navy: #0b1f33;
  --ink: #102a43;
  --muted: #4a5568;
  --line: #d9e4ec;
  --mist: #f4f8fb;
  --paper: #ffffff;
  --cyan: #20b7d7;
  --green: #20a37a;
  --violet: #7567d8;
  --gold: #f4b64a;
  --red: #d9514e;
  --shadow: 0 18px 46px rgba(11, 31, 51, 0.12);
  /* 접근성 텍스트 전용 색상 (WCAG AAA 7:1 이상) */
  --cyan-text: #065272;
  --green-text: #0c5c3c;
  --violet-text: #4840b8;
  --gold-text: #734d00;
  --red-text: #982c2a;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Malgun Gothic", "맑은 고딕", "Apple SD Gothic Neo", system-ui, sans-serif;
  line-height: 1.55;
  overflow-x: hidden;
}

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

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

button {
  font: inherit;
}

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 78px;
  padding: 0 42px;
  color: #fff;
  background: rgba(11, 31, 51, 0.44);
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  transition: background 180ms ease, min-height 180ms ease, box-shadow 180ms ease;
}

.site-header.is-scrolled {
  min-height: 68px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 10px 30px rgba(11, 31, 51, 0.08);
}

.site-header::after {
  display: none;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 214px;
}

.brand img {
  width: 42px;
  height: 42px;
  object-fit: contain;
  background: #fff;
  border-radius: 8px;
  padding: 4px;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 17px;
  line-height: 1.1;
}

.brand small {
  margin-top: 2px;
  font-size: 11px;
  color: currentColor;
  opacity: 0.76;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
  font-weight: 700;
}

.site-nav a {
  position: relative;
  padding: 8px 0;
}

.site-nav a::after {
  position: absolute;
  left: 0;
  bottom: 2px;
  width: 0;
  height: 2px;
  content: "";
  background: var(--cyan);
  transition: width 180ms ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  width: 100%;
}

/* ── 언어 토글 ── */
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: 4px;
  padding-left: 20px;
  border-left: 1px solid rgba(255, 255, 255, 0.3);
}
.site-header.is-scrolled .lang-toggle {
  border-left-color: rgba(11, 31, 51, 0.2);
}
.lang-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px 7px;
  border-radius: 5px;
  color: rgba(255, 255, 255, 0.65);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  transition: color 0.15s, background 0.15s;
}
.lang-btn:hover {
  color: #fff;
}
.lang-btn.is-active {
  color: #fff;
  background: rgba(255, 255, 255, 0.18);
}
.site-header.is-scrolled .lang-btn {
  color: rgba(11, 31, 51, 0.5);
}
.site-header.is-scrolled .lang-btn:hover {
  color: var(--ink);
}
.site-header.is-scrolled .lang-btn.is-active {
  color: var(--ink);
  background: rgba(11, 31, 51, 0.1);
}
.lang-sep {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.3);
  pointer-events: none;
  -webkit-user-select: none;
  user-select: none;
}
.site-header.is-scrolled .lang-sep {
  color: rgba(11, 31, 51, 0.2);
}

/* Google Translate 기본 툴바 숨김 */
.goog-te-banner-frame,
.skiptranslate {
  display: none !important;
}
body {
  top: 0 !important;
}

.menu-button {
  position: fixed;
  top: 17px;
  right: 42px;
  display: grid;
  flex: 0 0 44px;
  width: 44px;
  height: 44px;
  place-items: center;
  padding: 0;
  color: inherit;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid currentColor;
  border-radius: 8px;
  visibility: hidden;
  pointer-events: none;
  z-index: 50;
}

.menu-button b {
  display: none;
}

.menu-button span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 3px auto;
  background: currentColor;
}

.hero {
  position: relative;
  min-height: 92vh;
  overflow: hidden;
  color: #fff;
  background: var(--navy);
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.44;
  filter: saturate(1.05) contrast(1.05);
}

.hero-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(11, 31, 51, 0.95), rgba(11, 31, 51, 0.76) 42%, rgba(11, 31, 51, 0.28)),
    linear-gradient(180deg, rgba(11, 31, 51, 0.18), rgba(11, 31, 51, 0.78));
}

.hero-inner {
  position: relative;
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
  padding: 178px 0 56px;
}

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

.hero h1 {
  width: min(820px, 100%);
  margin: 0;
  font-size: 62px;
  line-height: 1.12;
  font-weight: 900;
  word-break: keep-all;
}

.hero h1 span {
  display: block;
}

.hero-copy {
  width: min(710px, 100%);
  margin: 26px 0 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: 20px;
  word-break: keep-all;
}

.hero-copy span {
  display: block;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 36px;
}

.primary-action,
.secondary-action {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 50px;
  padding: 0 20px;
  font-weight: 800;
  border-radius: 8px;
}

.primary-action {
  color: var(--navy);
  background: #fff;
}

.secondary-action {
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.34);
}

.action-icon {
  display: inline-grid;
  width: 22px;
  height: 22px;
  place-items: center;
  font-weight: 900;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  width: min(780px, 100%);
  margin: 86px 0 0;
  padding: 0;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.16);
}

.hero-metrics div {
  min-height: 104px;
  padding: 22px 24px;
  background: rgba(11, 31, 51, 0.42);
}

.hero-metrics dt {
  margin: 0 0 6px;
  font-size: 34px;
  line-height: 1;
  font-weight: 900;
}

.hero-metrics dd {
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
  font-weight: 700;
}

.section {
  padding: 104px 42px;
}

.intro-band,
.data-section,
.roadmap-section {
  background: var(--mist);
}

.section-grid,
.section-heading,
.business-layout,
.method-grid,
.siif-visual,
.process-list,
.capability-grid,
.leader-grid,
.roadmap,
.contact-section {
  width: min(1180px, 100%);
  margin-right: auto;
  margin-left: auto;
}

.intro-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 58px;
  align-items: end;
}

.section h2,
.contact-section h2 {
  margin: 0;
  color: var(--navy);
  font-size: 42px;
  line-height: 1.18;
  font-weight: 900;
}

.section-lead,
.section-heading p {
  margin: 0;
  color: var(--muted);
  font-size: 18px;
}

.section-heading {
  max-width: 840px;
  margin-bottom: 42px;
  text-align: center;
}

.section-heading.align-left {
  margin-left: auto;
  margin-right: auto;
  text-align: left;
}

.section-heading h2 + p {
  margin-top: 16px;
}

.business-layout {
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr) 360px;
  gap: 24px;
  align-items: stretch;
}

.business-tabs {
  display: grid;
  gap: 10px;
}

.tab {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 62px;
  padding: 0 16px;
  color: var(--ink);
  font-weight: 900;
  text-align: left;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  cursor: pointer;
}

.tab span {
  display: inline-grid;
  width: 34px;
  height: 34px;
  place-items: center;
  color: var(--navy);
  background: var(--mist);
  border-radius: 8px;
  font-size: 12px;
}

.tab.is-active {
  color: #fff;
  background: var(--navy);
  border-color: var(--navy);
}

.tab.is-active span {
  color: var(--navy);
  background: var(--cyan);
}

.business-panel {
  min-height: 420px;
  padding: 38px;
  color: #fff;
  background: var(--navy);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.panel-index {
  margin: 0 0 24px;
  color: var(--cyan);
  font-size: 14px;
  font-weight: 900;
}

.business-panel h3 {
  margin: 0 0 18px;
  font-size: 34px;
  line-height: 1.16;
}

.business-panel p {
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 18px;
}

.business-panel ul {
  display: grid;
  gap: 12px;
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
}

.business-panel li {
  padding-left: 22px;
  color: rgba(255, 255, 255, 0.86);
  font-weight: 700;
  background: linear-gradient(var(--cyan), var(--cyan)) left 0.75em / 8px 2px no-repeat;
}

.portfolio-visual {
  display: grid;
  align-items: center;
  margin: 0;
  padding: 18px;
  background: var(--mist);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.portfolio-visual img,
.siif-visual img {
  width: 100%;
  border-radius: 8px;
  box-shadow: 0 14px 36px rgba(11, 31, 51, 0.1);
}

.siif-section {
  background: #fff;
}

.method-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.method-card {
  min-height: 204px;
  padding: 24px;
  background: var(--mist);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.method-card span,
.capability-grid span {
  display: inline-block;
  margin-bottom: 18px;
  color: var(--cyan-text);
  font-size: 13px;
  font-weight: 900;
}

.method-card h3,
.capability-grid h3,
.leader-card h3,
.roadmap h3 {
  margin: 0 0 12px;
  color: var(--navy);
  font-size: 22px;
  line-height: 1.24;
}

.method-card p,
.capability-grid p,
.roadmap p,
.leader-card span {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.siif-visual {
  margin-top: 34px;
}

.process-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

.process-list li {
  min-height: 228px;
  padding: 28px;
  background: #fff;
}

.process-list span {
  display: block;
  margin-bottom: 34px;
  color: var(--green-text);
  font-size: 13px;
  font-weight: 900;
}

.process-list strong {
  display: block;
  margin-bottom: 12px;
  color: var(--navy);
  font-size: 22px;
  line-height: 1.24;
}

.process-list p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.capability-section {
  background: var(--navy);
}

.capability-section .section-heading h2 {
  color: #fff;
}

.capability-section .section-heading p,
.contact-section .eyebrow {
  color: rgba(255, 255, 255, 0.75);
}

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

.capability-grid article {
  min-height: 254px;
  padding: 28px;
  background: #fff;
  border-radius: 8px;
}

.capability-grid article:nth-child(2) span {
  color: var(--red-text);
}

.capability-grid article:nth-child(3) span {
  color: var(--violet-text);
}

.capability-grid article:nth-child(4) span {
  color: var(--gold-text);
}

.leader-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.leader-card {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 28px;
  align-items: center;
  min-height: 280px;
  padding: 28px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 14px 32px rgba(11, 31, 51, 0.07);
}

.leader-card img {
  width: 180px;
  height: 220px;
  object-fit: cover;
  object-position: center top;
  border-radius: 8px;
  background: var(--mist);
}

.leader-card p {
  margin: 0 0 10px;
  color: var(--cyan-text);
  font-size: 13px;
  font-weight: 900;
}

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

.roadmap article {
  position: relative;
  min-height: 214px;
  padding: 28px;
  background: #fff;
  border-radius: 8px;
  border: 1px solid var(--line);
}

.roadmap article::before {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  content: "";
  background: var(--cyan);
  border-radius: 8px 8px 0 0;
}

.roadmap article:nth-child(2)::before {
  background: var(--violet);
}

.roadmap article:nth-child(3)::before {
  background: var(--green);
}

.roadmap article:nth-child(4)::before {
  background: var(--gold);
}

.roadmap time {
  display: block;
  margin-bottom: 24px;
  color: var(--navy);
  font-size: 34px;
  line-height: 1;
  font-weight: 900;
}

.contact-section {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  align-items: start;
  padding: 78px 42px;
  color: #fff;
  background: var(--navy);
}

.contact-section h2 {
  color: #fff;
}

.contact-info {
  display: grid;
  gap: 32px;
}

.contact-section address {
  display: grid;
  gap: 8px;
  color: rgba(255, 255, 255, 0.78);
  font-style: normal;
}

.contact-section address strong {
  color: #fff;
  font-size: 20px;
}

.contact-section address a {
  color: var(--cyan);
  font-weight: 800;
}

/* 문의 폼 */
.contact-form-wrap {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 12px;
  padding: 36px;
}

.contact-form {
  display: grid;
  gap: 18px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.form-field {
  display: grid;
  gap: 8px;
}

.form-field label {
  font-size: 13px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.72);
  letter-spacing: 0.02em;
}

.form-field label span {
  color: var(--cyan);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 11px 14px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 7px;
  color: #fff;
  font-size: 15px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s, background 0.15s;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: rgba(255, 255, 255, 0.3);
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--cyan);
  background: rgba(255, 255, 255, 0.12);
}

.contact-form textarea {
  resize: vertical;
  min-height: 120px;
}

.contact-submit {
  width: 100%;
  padding: 14px;
  background: var(--cyan);
  color: var(--navy);
  font-size: 15px;
  font-weight: 900;
  border: none;
  border-radius: 7px;
  cursor: pointer;
  transition: opacity 0.15s;
}

.contact-submit:hover {
  opacity: 0.88;
}

.contact-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.form-status {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  min-height: 1.4em;
}

.form-status.is-success {
  color: #4ade80;
}

.form-status.is-error {
  color: #f87171;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 0 42px;
  color: #fff;
  background: #071725;
  font-size: 13px;
}

.site-footer a {
  color: var(--cyan);
  font-weight: 800;
}

@media (max-width: 1080px) {
  .business-layout {
    grid-template-columns: 1fr;
  }

  /* 탭 → 가로 스크롤 칩 */
  .business-tabs {
    display: flex;
    flex-direction: row;
    overflow-x: auto;
    gap: 8px;
    padding-bottom: 4px;
    scrollbar-width: none;
  }

  .business-tabs::-webkit-scrollbar {
    display: none;
  }

  .tab {
    flex-shrink: 0;
    min-height: 44px;
    padding: 0 14px;
    gap: 10px;
    white-space: nowrap;
  }

  .tab span {
    width: 28px;
    height: 28px;
    font-size: 11px;
    border-radius: 6px;
  }

  .method-grid,
  .capability-grid,
  .process-list,
  .roadmap {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .portfolio-visual {
    max-width: 620px;
  }
}

@media (max-width: 820px) {
  .site-header {
    padding: 0 20px;
  }

  .site-header::after {
    position: fixed;
    top: 17px;
    right: 20px;
    display: grid;
    width: 44px;
    height: 44px;
    place-items: center;
    color: currentColor;
    content: "☰";
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid currentColor;
    border-radius: 8px;
    font-size: 22px;
    font-weight: 900;
    pointer-events: none;
    z-index: 60;
  }

  .menu-button {
    top: 17px;
    right: 20px;
    visibility: visible;
    pointer-events: auto;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    right: 20px;
    left: 20px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px;
    color: var(--ink);
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 12px;
  }

  .lang-toggle {
    padding: 10px 12px;
    border-left: none;
    border-top: 1px solid var(--line);
    margin-left: 0;
  }

  .lang-btn {
    color: rgba(11, 31, 51, 0.5);
  }

  .lang-btn:hover,
  .lang-btn.is-active {
    color: var(--ink);
    background: rgba(11, 31, 51, 0.08);
  }

  .lang-sep {
    color: rgba(11, 31, 51, 0.2);
  }

  .hero-inner {
    width: min(1180px, calc(100% - 36px));
    padding-top: 144px;
  }

  .hero h1 {
    font-size: 44px;
  }

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

  .hero-metrics,
  .intro-grid,
  .contact-section {
    grid-template-columns: 1fr;
  }

  /* Leadership 카드 가로 스와이프 */
  .leader-grid {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    gap: 16px;
    scrollbar-width: none;
  }

  .leader-grid::-webkit-scrollbar {
    display: none;
  }

  .leader-card {
    flex: 0 0 85%;
    scroll-snap-align: start;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 78px 20px;
  }

  .section h2,
  .contact-section h2 {
    font-size: 34px;
  }

  .contact-section {
    padding: 68px 20px;
  }

  .site-footer {
    padding: 0 20px;
  }
}

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

  .hero h1 {
    font-size: 34px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .primary-action,
  .secondary-action {
    justify-content: center;
  }

  .hero-metrics,
  .business-tabs,
  .method-grid,
  .capability-grid {
    grid-template-columns: 1fr;
  }

  /* 프로세스·로드맵 가로 스와이프 */
  .process-list,
  .roadmap {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    gap: 12px;
    scrollbar-width: none;
    background: transparent;
    border: none;
  }

  .process-list::-webkit-scrollbar,
  .roadmap::-webkit-scrollbar {
    display: none;
  }

  .process-list > li,
  .roadmap > article {
    flex: 0 0 85%;
    scroll-snap-align: start;
  }

  .process-list > li {
    border: 1px solid var(--line);
    border-radius: 8px;
  }

  .business-panel {
    padding: 28px;
  }

  .business-panel h3 {
    font-size: 28px;
  }

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

  .leader-card img {
    width: 100%;
    height: 260px;
  }

  .site-footer {
    display: grid;
    gap: 8px;
    justify-content: start;
    padding-top: 18px;
    padding-bottom: 18px;
  }
}

/* 스와이프 점 인디케이터 */
.swipe-dots {
  display: none;
  justify-content: center;
  gap: 8px;
  margin-top: 16px;
}

@media (max-width: 820px) {
  .leader-grid + .swipe-dots {
    display: flex;
  }
}

@media (max-width: 620px) {
  .process-list + .swipe-dots,
  .roadmap + .swipe-dots {
    display: flex;
  }
}

.swipe-dot {
  width: 8px;
  height: 8px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: var(--line);
  cursor: pointer;
  transition: background 0.25s, width 0.25s, border-radius 0.25s;
}

.swipe-dot.is-active {
  background: var(--navy);
  width: 20px;
  border-radius: 4px;
}

/* Google Translate 상단 바 및 위젯 숨김 */
.goog-te-banner-frame,
#google_translate_element {
  display: none !important;
}

body {
  top: 0 !important;
}