:root {
  --navy: #0b1f33;
  --blue: #165d8f;
  --blue-dark: #0f496f;
  --cyan: #18a7b5;
  --white: #ffffff;
  --surface: #f3f7fa;
  --surface-strong: #e8f0f5;
  --text: #243746;
  --slate: #405466;
  --muted: #637887;
  --border: #d9e2e8;
  --green: #248566;
  --amber: #b56a14;
  --red: #a6414c;
  --shadow: 0 22px 55px rgba(11, 31, 51, 0.10);
  --radius: 16px;
  --shell: 1200px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--white);
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

button,
input,
select,
textarea {
  font: inherit;
}

.skip-link {
  position: absolute;
  top: -80px;
  left: 20px;
  z-index: 100;
  padding: 12px 16px;
  color: var(--white);
  background: var(--navy);
}

.skip-link:focus {
  top: 16px;
}

.shell {
  width: min(calc(100% - 48px), var(--shell));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(217, 226, 232, 0.9);
  backdrop-filter: blur(14px);
}

.header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.wordmark {
  display: inline-flex;
  align-items: baseline;
  gap: 11px;
  text-decoration: none;
  white-space: nowrap;
}

.wordmark-mark {
  color: var(--navy);
  font-size: 25px;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.wordmark-name {
  color: var(--slate);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

nav a {
  color: var(--slate);
  font-size: 17px;
  font-weight: 650;
  text-decoration: none;
}

nav a:hover,
nav a:focus-visible {
  color: var(--blue);
}

.nav-cta {
  padding: 9px 16px;
  color: var(--white);
  background: var(--navy);
  border-radius: 7px;
}

nav .nav-cta:hover,
nav .nav-cta:focus-visible {
  color: var(--white);
  background: var(--blue-dark);
}

.hero {
  padding: 112px 0 96px;
  overflow: hidden;
  background:
    linear-gradient(115deg, rgba(243, 247, 250, 0.82), rgba(255, 255, 255, 0.92)),
    repeating-linear-gradient(90deg, transparent 0, transparent 79px, rgba(22, 93, 143, 0.045) 80px);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(380px, 0.92fr);
  gap: 72px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

h1,
h2,
h3 {
  color: var(--navy);
  line-height: 1.24;
  letter-spacing: -0.035em;
}

h1 {
  margin-bottom: 28px;
  font-size: clamp(42px, 5vw, 68px);
}

h2 {
  margin-bottom: 22px;
  font-size: clamp(32px, 4vw, 48px);
}

h3 {
  margin-bottom: 12px;
  font-size: 21px;
}

.hero-lead {
  max-width: 710px;
  margin-bottom: 16px;
  color: var(--text);
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.65;
}

.hero-support {
  max-width: 690px;
  margin-bottom: 30px;
  color: var(--slate);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 11px 20px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 750;
  line-height: 1.2;
  text-decoration: none;
  transition: background-color 180ms ease, color 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.button:hover:not(:disabled) {
  transform: translateY(-1px);
}

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

.button-primary:hover:not(:disabled),
.button-primary:focus-visible {
  background: var(--blue-dark);
}

.button-secondary {
  color: var(--navy);
  background: transparent;
  border-color: var(--border);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  border-color: var(--blue);
}

.button:disabled {
  cursor: not-allowed;
  opacity: 0.52;
}

.safety-note,
.matrix-caption,
.boundary-note,
.form-note,
.form-status {
  color: var(--muted);
  font-size: 13px;
}

.decision-visual {
  position: relative;
  padding: 28px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.decision-visual::before {
  content: "";
  position: absolute;
  inset: -18px 22px auto auto;
  width: 70px;
  height: 5px;
  background: var(--cyan);
}

.hero-journey-list {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.hero-journey-list li {
  position: relative;
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 12px;
  align-items: center;
  padding: 13px 15px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.hero-journey-list li:not(:last-child)::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 34px;
  z-index: 2;
  width: 2px;
  height: 10px;
  background: var(--cyan);
}

.hero-journey-list li > span,
.hero-delivery-label > span {
  color: var(--cyan);
  font-size: 17px;
  font-weight: 800;
}

.hero-journey-list strong,
.hero-journey-list small,
.hero-delivery-label strong,
.hero-delivery-label small {
  display: block;
}

.hero-journey-list strong,
.hero-delivery-label strong {
  color: var(--navy);
  font-size: 17px;
}

.hero-journey-list small,
.hero-delivery-label small {
  color: var(--muted);
  font-size: 15px;
  font-weight: 700;
}

.hero-delivery-path {
  margin-top: 9px;
  padding: 15px;
  background: var(--navy);
  border-radius: 9px;
}

.hero-delivery-label {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 12px;
  align-items: center;
  margin-bottom: 12px;
}

.hero-delivery-label strong {
  color: var(--white);
}

.hero-delivery-label small {
  color: rgba(255, 255, 255, 0.62);
}

.hero-delivery-path ul {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 7px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.hero-delivery-path li {
  display: grid;
  min-height: 58px;
  place-content: center;
  padding: 8px;
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(24, 167, 181, 0.42);
  border-radius: 6px;
  font-size: 15px;
  font-weight: 750;
  line-height: 1.35;
  text-align: center;
}

.hero-delivery-path li span,
.journey-outcomes span {
  color: var(--cyan);
  font-size: 13px;
}

.visual-label,
.proof-label {
  margin-bottom: 18px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.signal-list,
.outcome-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.signal-list span,
.outcome-row span {
  padding: 12px 8px;
  color: var(--slate);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 7px;
  font-size: 12px;
  font-weight: 700;
  text-align: center;
}

.outcome-row {
  grid-template-columns: repeat(4, 1fr);
}

.outcome-row span {
  color: var(--navy);
  background: var(--white);
  border-color: rgba(24, 167, 181, 0.35);
}

.visual-arrow {
  padding: 8px;
  color: var(--cyan);
  font-weight: 800;
  text-align: center;
}

.decision-core {
  padding: 24px;
  color: var(--white);
  background: var(--navy);
  border-radius: 9px;
  text-align: center;
}

.decision-core strong,
.decision-core span {
  display: block;
}

.decision-core strong {
  margin-bottom: 5px;
  font-size: 18px;
}

.decision-core span {
  color: rgba(255, 255, 255, 0.7);
  font-size: 12px;
  letter-spacing: 0.03em;
}

.journey {
  padding: 88px 0;
  color: rgba(255, 255, 255, 0.78);
  background: var(--navy);
}

.journey-heading {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 72px;
  align-items: end;
  margin-bottom: 44px;
}

.journey-heading h2,
.journey-step h3 {
  color: var(--white);
}

.journey-heading > p {
  margin-bottom: 0;
  font-size: 17px;
}

.journey-flow {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 42px minmax(0, 1fr) 42px minmax(0, 1fr) 42px minmax(0, 1.2fr);
  align-items: stretch;
}

.journey-step {
  min-width: 0;
  min-height: 270px;
  padding: 26px;
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 10px;
}

.journey-step > span {
  display: block;
  margin-bottom: 10px;
  color: var(--cyan);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.journey-step h3 {
  font-size: 23px;
}

.journey-step p {
  margin-bottom: 0;
}

.journey-number {
  margin-bottom: 28px;
  color: rgba(255, 255, 255, 0.42);
  font-size: 17px;
  font-weight: 800;
}

.journey-arrow {
  display: grid;
  place-items: center;
  color: var(--cyan);
  font-size: 25px;
  font-weight: 800;
}

.journey-destination {
  background: rgba(24, 167, 181, 0.11);
  border-color: rgba(24, 167, 181, 0.7);
}

.journey-outcomes {
  display: grid;
  gap: 8px;
}

.journey-outcomes div {
  padding: 10px 12px;
  color: var(--white);
  background: rgba(255, 255, 255, 0.07);
  border-left: 3px solid var(--cyan);
  font-weight: 700;
}

.journey-principle {
  margin: 22px 0 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 17px;
  text-align: right;
}

.section {
  padding: 104px 0;
}

.section-heading {
  max-width: 880px;
  margin-bottom: 50px;
}

.section-heading.narrow {
  max-width: 720px;
}

.section-heading > p:last-child,
.diagnostic-copy > p,
.founder-grid p,
.contact-grid > div > p {
  color: var(--slate);
  font-size: 17px;
}

.situations {
  border-top: 1px solid var(--border);
}

.three-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 34px;
}

.situation-item {
  padding-top: 22px;
  border-top: 3px solid var(--navy);
}

.situation-item p,
.service-item p,
.process-list p,
.evidence-list p {
  margin-bottom: 0;
  color: var(--slate);
}

.item-index,
.service-number {
  display: block;
  margin-bottom: 20px;
  color: var(--cyan);
  font-size: 12px;
  font-weight: 800;
}

.diagnostic {
  background: var(--surface);
}

.diagnostic-grid {
  display: grid;
  grid-template-columns: 0.84fr 1.16fr;
  gap: 70px;
  align-items: start;
}

.check-list {
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  margin: 12px 0;
  padding-left: 28px;
  color: var(--text);
  font-weight: 650;
}

.check-list li::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 2px;
  width: 9px;
  height: 9px;
  background: var(--cyan);
  border-radius: 50%;
}

.matrix-wrap {
  padding: 30px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 16px 34px rgba(11, 31, 51, 0.07);
}

.table-scroll {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 17px;
}

th,
td {
  padding: 14px 12px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  white-space: nowrap;
}

thead th {
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

tbody th {
  color: var(--navy);
}

.level {
  display: inline-flex;
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 800;
}

.level-high {
  color: var(--green);
  background: rgba(36, 133, 102, 0.11);
}

.level-medium {
  color: var(--amber);
  background: rgba(181, 106, 20, 0.11);
}

.matrix-caption {
  margin: 16px 0 0;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--border);
  border-left: 1px solid var(--border);
}

.service-item {
  min-height: 255px;
  padding: 34px;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.service-item.featured {
  background: var(--surface);
}

.boundary-note {
  margin: 20px 0 0;
}

.application-examples {
  margin: 22px 0 0;
  color: var(--slate);
  font-size: 17px;
}

.process {
  color: var(--white);
  background: var(--navy);
}

.process h2,
.process h3 {
  color: var(--white);
}

.process .eyebrow {
  color: var(--cyan);
}

.process-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 54px 0 0;
  padding: 0;
  list-style: none;
}

.process-list li {
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 26px;
  min-height: 240px;
  padding: 26px 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.28);
  border-right: 1px solid rgba(255, 255, 255, 0.16);
}

.process-list li:last-child {
  border-right: 0;
}

.process-list > li > span {
  color: var(--cyan);
  font-size: 13px;
  font-weight: 800;
}

.process-list p {
  color: rgba(255, 255, 255, 0.7);
}

.evidence {
  background: var(--surface);
}

.evidence-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 72px;
}

.evidence-list article {
  padding: 26px 0;
  border-top: 1px solid var(--border);
}

.evidence-list article:last-child {
  border-bottom: 1px solid var(--border);
}

.evidence-list article > span {
  display: block;
  margin-bottom: 8px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.inline-link {
  display: inline-block;
  margin-top: 12px;
  color: var(--blue-dark);
  font-weight: 800;
  text-decoration-color: var(--cyan);
  text-underline-offset: 4px;
}

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

.demo-page-hero {
  padding: 92px 0 58px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.demo-page-hero .section-heading {
  margin-bottom: 0;
}

.demo-heading {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 72px;
  align-items: end;
  margin-bottom: 42px;
}

.demo-heading > p {
  margin-bottom: 0;
  color: var(--slate);
  font-size: 17px;
}

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

.demo-card {
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.demo-card-heading {
  margin-bottom: 16px;
}

.demo-card-heading span {
  display: block;
  margin-bottom: 5px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.demo-card-heading h3 {
  margin-bottom: 0;
}

.media-slot {
  display: grid;
  min-height: 310px;
  place-content: center;
  padding: 30px;
  color: var(--muted);
  background: var(--navy);
  border-radius: 8px;
  text-align: center;
}

.media-slot > span {
  margin-bottom: 12px;
  color: var(--cyan);
  font-size: 34px;
}

.media-slot strong {
  color: var(--white);
  font-size: 18px;
}

.media-slot p {
  margin: 7px 0 0;
  color: rgba(255, 255, 255, 0.65);
  font-size: 13px;
}

.media-slot video {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  max-height: 420px;
  background: #000;
  border-radius: 8px;
}

.media-slot.media-ready {
  display: block;
  min-height: 0;
  padding: 0;
  background: #000;
}

.demo-disclosure {
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.demo-details {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 42px;
}

.demo-details article {
  padding-top: 20px;
  border-top: 2px solid var(--navy);
}

.demo-details p,
.demo-details li {
  color: var(--slate);
}

.demo-details ul {
  margin: 0;
  padding-left: 20px;
}

.demo-cta {
  margin-top: 42px;
  padding: 30px;
  color: var(--white);
  background: var(--navy);
  border-radius: 12px;
}

.demo-cta h2 {
  color: var(--white);
}

.demo-cta p {
  max-width: 760px;
}

.founder-grid {
  display: grid;
  grid-template-columns: 230px minmax(0, 760px);
  gap: 56px;
  justify-content: center;
  align-items: start;
}

.founder-mark {
  display: grid;
  aspect-ratio: 1;
  place-items: center;
  color: var(--white);
  background: var(--navy);
  font-size: 58px;
  font-weight: 800;
  letter-spacing: -0.06em;
}

.english-summary {
  padding: 92px 0;
  color: rgba(255, 255, 255, 0.82);
  background: linear-gradient(125deg, var(--navy), #123a5a);
}

.english-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 72px;
}

.english-summary h2 {
  color: var(--white);
}

.eyebrow.light {
  color: var(--cyan);
}

.text-link {
  color: var(--white);
  font-weight: 800;
  text-decoration-color: var(--cyan);
  text-underline-offset: 5px;
}

.contact {
  background: var(--surface);
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 72px;
}

.email-pending {
  margin-top: 30px;
  padding: 20px;
  background: var(--white);
  border-left: 4px solid var(--cyan);
}

.email-pending span,
.email-pending strong {
  display: block;
}

.email-pending span {
  margin-bottom: 3px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.email-pending a {
  color: var(--ink);
  text-decoration-color: var(--cyan);
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.email-pending a:hover,
.email-pending a:focus-visible {
  color: var(--blue);
}

.email-note {
  margin-top: 14px;
  color: var(--muted);
  font-size: 13px;
}

.contact-form {
  padding: 34px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.contact-fieldset {
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

label {
  display: block;
  margin-bottom: 17px;
  color: var(--navy);
  font-size: 17px;
  font-weight: 750;
}

label span {
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
}

input,
select,
textarea {
  width: 100%;
  margin-top: 7px;
  padding: 12px 13px;
  color: var(--text);
  background: var(--white);
  border: 1px solid #bdcad3;
  border-radius: 6px;
}

textarea {
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  outline: 3px solid rgba(24, 167, 181, 0.22);
  border-color: var(--cyan);
}

.form-note {
  margin: -2px 0 16px;
}

.form-status {
  margin: 11px 0 0;
}

.site-footer {
  padding: 42px 0;
  color: rgba(255, 255, 255, 0.68);
  background: #071727;
}

.footer-grid {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 36px;
}

.footer-mark {
  color: var(--white);
  font-size: 26px;
  font-weight: 800;
}

.site-footer p {
  margin-bottom: 0;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 18px;
  font-size: 13px;
}

@media (max-width: 980px) {
  nav a:not(.nav-cta) {
    display: none;
  }

  .hero-grid,
  .journey-heading,
  .diagnostic-grid,
  .evidence-grid,
  .demo-heading,
  .english-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    gap: 54px;
  }

  .journey-flow {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .journey-step {
    min-height: auto;
  }

  .journey-arrow {
    height: 30px;
    transform: rotate(90deg);
  }

  .decision-visual {
    max-width: 660px;
  }

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

  .process-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-list li:nth-child(2) {
    border-right: 0;
  }

  .founder-grid {
    grid-template-columns: 150px minmax(0, 1fr);
  }
}

@media (max-width: 680px) {
  .shell {
    width: min(calc(100% - 32px), var(--shell));
  }

  .header-inner {
    min-height: 66px;
  }

  .wordmark-name {
    display: none;
  }

  .hero {
    padding: 72px 0 66px;
  }

  .section {
    padding: 74px 0;
  }

  .journey {
    padding: 70px 0;
  }

  .journey-heading {
    gap: 20px;
  }

  .journey-principle {
    text-align: left;
  }

  h1 {
    font-size: 40px;
  }

  h2 {
    font-size: 32px;
  }

  .decision-visual,
  .matrix-wrap,
  .contact-form {
    padding: 22px;
  }

  .signal-list,
  .outcome-row {
    grid-template-columns: 1fr 1fr;
  }

  .service-grid,
  .process-list,
  .demo-grid,
  .demo-details,
  .field-row,
  .founder-grid {
    grid-template-columns: 1fr;
  }

  .process-list li,
  .process-list li:nth-child(2) {
    min-height: auto;
    border-right: 0;
  }

  .founder-mark {
    width: 112px;
  }

  .footer-grid {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}