:root {
  --ink: #13213c;
  --teal: #18a999;
  --paper: #f7f4ec;
  --cloud: #e9eef4;
  --muted: #596579;
  --line: #dce3ea;
  --blue: #3976d9;
  --green: #4e9f6d;
  --coral: #e5634c;
  --white: #ffffff;
  --font-sans: "Apple SD Gothic Neo", "Pretendard", "Noto Sans KR", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

main {
  overflow: hidden;
}

.site-header {
  position: relative;
  z-index: 20;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 88px;
  padding: 0 5vw;
  border-bottom: 1px solid rgba(19, 33, 60, 0.12);
  background: rgba(247, 244, 236, 0.94);
}

.brand,
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  width: fit-content;
}

.brand__wordmark {
  font-size: 25px;
  font-weight: 800;
  letter-spacing: -1.5px;
}

.brand-mark {
  position: relative;
  display: inline-grid;
  place-items: center;
  width: 104px;
  height: 104px;
  flex: 0 0 auto;
  overflow: hidden;
  border-radius: 24px;
  background: var(--ink);
}

.brand-mark--compact {
  width: 38px;
  height: 38px;
  border-radius: 9px;
}

.brand-mark__fold {
  position: absolute;
  top: 0;
  right: 0;
  width: 35%;
  aspect-ratio: 1;
  border-bottom-left-radius: 28%;
  background: var(--teal);
}

.brand-mark__globe {
  position: relative;
  display: block;
  width: 54%;
  aspect-ratio: 1;
  margin-top: 10%;
  overflow: hidden;
  border-radius: 50%;
  background: var(--paper);
}

.brand-mark__horizon {
  position: absolute;
  top: 44%;
  left: 6%;
  width: 88%;
  height: 46%;
  border: max(3px, 0.07em) solid var(--ink);
  border-color: var(--ink) transparent transparent;
  border-radius: 50%;
}

.brand-mark__line {
  position: absolute;
  bottom: 20%;
  left: 20%;
  width: 60%;
  height: 7%;
  border-radius: 999px;
  background: var(--teal);
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 32px;
  font-size: 15px;
  font-weight: 650;
}

.primary-nav a,
.header-link,
.text-link {
  transition: color 160ms ease;
}

.primary-nav a:hover,
.primary-nav a:focus-visible,
.header-link:hover,
.header-link:focus-visible,
.text-link:hover,
.text-link:focus-visible {
  color: var(--teal);
}

.header-link {
  justify-self: end;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 750;
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(380px, 0.78fr);
  gap: 6vw;
  min-height: 720px;
  padding: 96px 7vw 112px;
  background:
    radial-gradient(circle at 82% 13%, rgba(24, 169, 153, 0.16), transparent 24%),
    linear-gradient(180deg, var(--paper) 0%, #f4f7f4 100%);
}

.hero::after {
  position: absolute;
  bottom: -180px;
  left: -100px;
  width: 430px;
  height: 430px;
  border: 1px solid rgba(19, 33, 60, 0.12);
  border-radius: 50%;
  content: "";
}

.hero__content {
  align-self: center;
  max-width: 780px;
}

.hero__eyebrow,
.section-kicker,
.briefing-card__header p,
.closing-section > div > p {
  margin: 0 0 22px;
  color: var(--teal);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.hero__eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
}

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 6px rgba(24, 169, 153, 0.12);
}

.hero h1 {
  margin: 0;
  font-size: clamp(58px, 6.7vw, 106px);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -0.07em;
}

.hero h1 span {
  color: var(--teal);
}

.hero__description {
  margin: 36px 0 0;
  color: var(--muted);
  font-size: clamp(18px, 1.5vw, 23px);
  line-height: 1.75;
  letter-spacing: -0.035em;
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: 30px;
  margin-top: 42px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  min-height: 58px;
  padding: 0 26px;
  border-radius: 999px;
  font-weight: 750;
  transition: transform 180ms ease, background 180ms ease;
}

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

.button--primary:hover,
.button--primary:focus-visible {
  transform: translateY(-2px);
  background: #1d3158;
}

.text-link {
  border-bottom: 1px solid rgba(19, 33, 60, 0.3);
  color: var(--ink);
  font-size: 14px;
  font-weight: 650;
}

.trust-row {
  display: flex;
  gap: 24px;
  margin-top: 54px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 650;
}

.trust-row span::before {
  margin-right: 8px;
  color: var(--teal);
  content: "✓";
}

.briefing-card {
  position: relative;
  align-self: center;
  overflow: hidden;
  border: 1px solid rgba(19, 33, 60, 0.1);
  border-radius: 32px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 30px 90px rgba(19, 33, 60, 0.12);
  backdrop-filter: blur(14px);
}

.briefing-card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 32px 34px 26px;
  border-bottom: 1px solid var(--line);
}

.briefing-card__header p {
  margin-bottom: 7px;
}

.briefing-card__header h2 {
  margin: 0;
  font-size: 27px;
  letter-spacing: -0.055em;
}

.briefing-card__header time {
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--white);
  font-size: 14px;
  font-weight: 800;
}

.briefing-item {
  position: relative;
  display: grid;
  grid-template-columns: 78px 1fr 24px;
  align-items: center;
  gap: 16px;
  min-height: 105px;
  padding: 20px 32px;
  border-bottom: 1px solid var(--line);
}

.briefing-item h3 {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -0.035em;
}

.briefing-item__badge {
  display: inline-grid;
  place-items: center;
  width: fit-content;
  min-width: 66px;
  min-height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
}

.briefing-item__badge--blue { background: rgba(57, 118, 217, 0.12); color: var(--blue); }
.briefing-item__badge--green { background: rgba(78, 159, 109, 0.12); color: var(--green); }
.briefing-item__badge--coral { background: rgba(229, 99, 76, 0.12); color: var(--coral); }

.briefing-item__arrow {
  color: #8a95a5;
  font-size: 19px;
}

.briefing-card__footer {
  display: flex;
  justify-content: space-between;
  padding: 20px 32px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 650;
}

.publication-section,
.principles-section {
  padding: 130px 7vw;
  background: var(--white);
}

.section-heading {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 60px;
  align-items: end;
  margin-bottom: 62px;
}

.section-heading h2,
.moments-intro h2,
.principles-heading h2 {
  margin: 0;
  font-size: clamp(38px, 4.1vw, 64px);
  line-height: 1.15;
  letter-spacing: -0.06em;
}

.section-heading > p {
  max-width: 470px;
  margin: 0 0 8px auto;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.8;
}

.publication-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.publication-card {
  position: relative;
  display: flex;
  min-height: 520px;
  flex-direction: column;
  overflow: hidden;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: #fbfcfd;
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.publication-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 60px rgba(19, 33, 60, 0.1);
}

.publication-card__topline {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 8px;
}

.publication-card--blue .publication-card__topline { background: var(--blue); }
.publication-card--green .publication-card__topline { background: var(--green); }
.publication-card--coral .publication-card__topline { background: var(--coral); }

.publication-card__meta {
  display: flex;
  justify-content: space-between;
  margin-bottom: 84px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.13em;
}

.publication-card--blue .publication-card__meta { color: var(--blue); }
.publication-card--green .publication-card__meta { color: var(--green); }
.publication-card--coral .publication-card__meta { color: var(--coral); }

.publication-card h3 {
  margin: 0;
  font-size: clamp(30px, 2.4vw, 42px);
  line-height: 1.2;
  letter-spacing: -0.06em;
}

.publication-card__short {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 15px;
  font-weight: 650;
}

.publication-card__description {
  margin: 24px 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.7;
}

.publication-card ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.publication-card li {
  padding: 7px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--white);
  color: var(--muted);
  font-size: 12px;
  font-weight: 650;
}

.publication-card__footer {
  display: flex;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 28px;
  font-size: 13px;
  font-weight: 750;
}

.publication-card--blue .publication-card__footer { color: var(--blue); }
.publication-card--green .publication-card__footer { color: var(--green); }
.publication-card--coral .publication-card__footer { color: var(--coral); }

.moments-section {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 7vw;
  padding: 130px 7vw;
  background: var(--paper);
}

.moments-intro {
  align-self: start;
  position: sticky;
  top: 50px;
}

.moments-list {
  border-top: 1px solid rgba(19, 33, 60, 0.2);
}

.moment {
  display: grid;
  grid-template-columns: 68px 1fr auto;
  gap: 24px;
  align-items: start;
  min-height: 190px;
  padding: 36px 0;
  border-bottom: 1px solid rgba(19, 33, 60, 0.2);
}

.moment__number {
  color: var(--teal);
  font-size: 13px;
  font-weight: 850;
}

.moment h3 {
  margin: -8px 0 10px;
  font-size: 34px;
  letter-spacing: -0.055em;
}

.moment p {
  max-width: 560px;
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.moment__tags {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.events-feature {
  display: grid;
  grid-template-columns: 0.88fr 1.12fr;
  gap: 8vw;
  padding: 130px 7vw;
  background: var(--ink);
  color: var(--white);
}

.section-kicker--light {
  color: #69d0c5;
}

.events-feature__copy h2 {
  margin: 0;
  font-size: clamp(48px, 5.2vw, 78px);
  line-height: 1.08;
  letter-spacing: -0.065em;
}

.events-feature__copy > p:not(.section-kicker) {
  max-width: 520px;
  margin: 34px 0 32px;
  color: #b9c4d6;
  font-size: 17px;
  line-height: 1.8;
}

.launch-label {
  display: inline-flex;
  padding: 10px 15px;
  border: 1px solid rgba(105, 208, 197, 0.45);
  border-radius: 999px;
  color: #69d0c5;
  font-size: 12px;
  font-weight: 800;
}

.event-tools {
  align-self: center;
  border-top: 1px solid rgba(255, 255, 255, 0.22);
}

.event-tools article {
  display: grid;
  grid-template-columns: 56px 1fr 24px;
  gap: 24px;
  align-items: center;
  min-height: 150px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.22);
}

.event-tools__index {
  color: var(--coral);
  font-size: 13px;
  font-weight: 850;
}

.event-tools h3 {
  margin: 0 0 8px;
  font-size: 28px;
  letter-spacing: -0.045em;
}

.event-tools p {
  margin: 0;
  color: #9eadc3;
  font-size: 14px;
}

.event-tools article > span:last-child {
  color: var(--coral);
  font-size: 22px;
}

.principles-section {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 7vw;
}

.principle-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.principle-grid article {
  min-height: 340px;
  padding: 28px;
  border-radius: 24px;
  background: var(--paper);
}

.principle-grid article > span {
  color: var(--teal);
  font-size: 13px;
  font-weight: 850;
}

.principle-grid h3 {
  margin: 120px 0 14px;
  font-size: 23px;
  line-height: 1.35;
  letter-spacing: -0.045em;
}

.principle-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}

.closing-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 500px;
  padding: 90px 9vw;
  background: var(--teal);
  color: var(--ink);
}

.closing-section > div > p {
  color: var(--ink);
}

.closing-section h2 {
  margin: 0;
  font-size: clamp(48px, 5.4vw, 82px);
  line-height: 1.12;
  letter-spacing: -0.07em;
}

.closing-section__mark .brand-mark {
  transform: rotate(5deg);
  box-shadow: 20px 26px 0 rgba(19, 33, 60, 0.14);
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 70px;
  padding: 70px 7vw 34px;
  background: var(--ink);
  color: var(--white);
}

.footer-brand strong,
.footer-brand span {
  display: block;
}

.footer-brand strong {
  font-size: 20px;
  letter-spacing: -0.04em;
}

.footer-brand span {
  color: #9eadc3;
  font-size: 12px;
}

.site-footer > p {
  max-width: 620px;
  margin: 0;
  color: #b9c4d6;
  font-size: 14px;
  line-height: 1.8;
}

.footer-meta {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
  margin-top: 20px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  color: #8392a9;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.05em;
}

@media (max-width: 1120px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .primary-nav {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    padding-top: 80px;
  }

  .hero__content {
    max-width: 850px;
  }

  .briefing-card {
    width: 100%;
    max-width: 760px;
  }

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

  .publication-card {
    min-height: 440px;
  }

  .publication-card__meta {
    margin-bottom: 56px;
  }

  .moments-section,
  .events-feature,
  .principles-section {
    grid-template-columns: 1fr;
  }

  .moments-intro {
    position: static;
  }
}

@media (max-width: 760px) {
  .site-header {
    min-height: 72px;
    padding: 0 20px;
  }

  .brand__wordmark {
    font-size: 21px;
  }

  .header-link {
    font-size: 12px;
  }

  .hero,
  .publication-section,
  .moments-section,
  .events-feature,
  .principles-section {
    padding: 76px 22px;
  }

  .hero {
    gap: 56px;
    min-height: auto;
  }

  .hero h1 {
    font-size: clamp(49px, 15vw, 72px);
  }

  .hero__description {
    font-size: 17px;
  }

  .desktop-break {
    display: none;
  }

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

  .trust-row {
    flex-direction: column;
    gap: 8px;
    margin-top: 38px;
  }

  .briefing-card__header,
  .briefing-item,
  .briefing-card__footer {
    padding-left: 22px;
    padding-right: 22px;
  }

  .briefing-item {
    grid-template-columns: 72px 1fr;
  }

  .briefing-item__arrow {
    display: none;
  }

  .briefing-card__footer {
    flex-direction: column;
    gap: 4px;
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .section-heading > p {
    margin-left: 0;
  }

  .publication-card {
    min-height: 510px;
    padding: 28px;
  }

  .publication-card__meta {
    margin-bottom: 72px;
  }

  .moment {
    grid-template-columns: 40px 1fr;
  }

  .moment__tags {
    grid-column: 2;
  }

  .event-tools article {
    grid-template-columns: 40px 1fr;
  }

  .event-tools article > span:last-child {
    display: none;
  }

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

  .principle-grid article {
    min-height: 250px;
  }

  .principle-grid h3 {
    margin-top: 70px;
  }

  .closing-section {
    min-height: 470px;
    padding: 70px 22px;
  }

  .closing-section__mark {
    display: none;
  }

  .site-footer {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 54px 22px 28px;
  }

  .footer-meta {
    flex-direction: column;
    gap: 8px;
  }
}

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

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