@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Manrope:wght@400;500;600;700;800&display=swap');

/*
  SHARE Lab | Unified stylesheet (v7)
  ------------------------------------
  - Previous v4 + v6 desktop/mobile rules are combined here.
  - No additional theme.css is needed.
  - To change FONT / COLOR / BUTTON appearance, scroll to the
    last section marked '사용자 설정 (직접 수정하는 곳)' and edit only there.
*/


/* ----- BASE ----- */

:root {
  --navy: var(--color-heading);
  --blue: var(--color-accent);
  --ink: var(--color-body);
  --muted: var(--color-muted);
  --line: var(--color-border);
  --soft: var(--color-soft);
  --max: var(--layout-width);
  --theme-card-background: var(--color-card);
  --theme-border: var(--color-border);
  --theme-card-radius: var(--card-radius);
  --theme-soft-background: var(--color-soft);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: var(--font-body-size);
}

body {
  margin: 0;
  background: var(--color-background);
  color: var(--color-body);
  font-family: var(--font-body);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  color: var(--color-accent);
}

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

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

h1,h2,h3,.brand-title {
  font-family: var(--font-heading);
  letter-spacing: -.045em;
}

h2 {
  font-size: var(--font-section-title-size);
  line-height: 1.2;
}

p {
  font-size: 1rem;
}

.wrap {
  max-width: var(--layout-width);
  margin: 0 auto;
  padding: 0 32px;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  padding: 12px;
  background: #fff;
  z-index: 999;
}

.skip-link:focus {
  top: 0;
}


/* ----- HEADER ----- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: var(--color-background);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(12px);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 88px;
  gap: 25px;
}

.identity {
  display: flex;
  flex-direction: column;
  gap: 0;
  white-space: nowrap;
}

.brand-title {
  font-size: 1.65rem;
  line-height: 1.15;
  font-weight: 800;
  color: var(--color-heading);
}

.brand-lab {
  color: var(--color-accent);
}

.brand-subtitle {
  font-size: .63rem;
  font-weight: 700;
  letter-spacing: .21em;
  color: var(--color-muted);
  padding-top: 6px;
}

.top-nav {
  display: flex;
  align-items: center;
  gap: clamp(13px,2vw,29px);
}

.top-nav a {
  font-size: var(--font-nav-size);
  font-weight: 700;
  color: var(--color-nav);
  position: relative;
  padding: 10px 0;
}

.top-nav a.active {
  color: var(--color-nav-active);
}

.top-nav a.active:after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-accent);
  bottom: -1px;
}

.menu-toggle {
  display: none;
  background: var(--soft);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 4px 12px;
  font-size: 1.3rem;
  color: var(--color-heading);
  cursor: pointer;
}


/* ----- HERO & BUTTONS ----- */

.eyebrow,.small-label {
  font-size: .69rem;
  text-transform: uppercase;
  letter-spacing: .16em;
  font-weight: 800;
  color: var(--color-accent);
}

.eyebrow-rule {
  display: inline-block;
  width: 27px;
  height: 2px;
  background: var(--color-accent);
  vertical-align: middle;
  margin-right: 10px;
}

.hero {
  display: grid;
  grid-template-columns: 50% 50%;
  gap: 0;
  align-items: center;
  min-height: 545px;
  padding: 60px 0 68px;
  border-bottom: 1px solid var(--color-border);
}

.hero-copy {
  padding-right: 26px;
}

.hero .eyebrow {
  font-size: .66rem;
  line-height: 1.7;
  max-width: 490px;
  color: var(--color-accent);
}

.hero h1 {
  font-size: var(--font-hero-size);
  line-height: 1.16;
  margin: 32px 0 23px;
  color: var(--color-heading);
  font-weight: 800;
  letter-spacing: -.065em;
}

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

.hero-description {
  max-width: 530px;
  font-size: clamp(.96rem,1.22vw,1.13rem);
  line-height: 1.9;
  color: var(--color-muted);
}

.hero-description strong {
  font-weight: 700;
  color: var(--color-heading);
}

.hero-actions {
  display: flex;
  gap: 12px;
  margin-top: 31px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  gap: 28px;
  align-items: center;
  justify-content: space-between;
  border-radius: var(--button-radius);
  padding: 12px 18px;
  font-size: .84rem;
  font-weight: 800;
  border: 1px solid var(--color-border);
  transition: .15s;
}

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

.btn-primary {
  background: var(--color-button);
  color: var(--color-button-text);
  border-color: var(--color-button);
}

.btn-primary:hover {
  color: var(--color-button-text);
  background: var(--color-button-hover);
}

.btn-outline {
  background: var(--color-card);
  color: var(--color-heading);
  border-color: #cfdae2;
}

.btn-outline:hover {
  border-color: var(--navy);
}

.hero-visual {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-self: stretch;
  justify-content: center;
  padding: 4px 0 0;
}

.hero-visual-illustration {
  padding: 4px 0;
  align-self: center;
  justify-content: center;
}

.hero-art {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
  mix-blend-mode: multiply;
}

.hero-art-caption {
  text-align: right;
  padding-right: 5px;
  color: var(--color-muted);
  font-size: .62rem;
  letter-spacing: .16em;
  font-weight: 700;
}

.hero-art-caption span {
  color: var(--color-accent);
  padding: 0 6px;
}

.hero-actions .btn {
  justify-content: center;
  min-width: 112px;
}


/* ----- HOME SECTIONS ----- */

.section {
  padding: 88px 0;
}

.intro-grid {
  display: grid;
  /* 2 columns closer together, with enough space for the title */
  grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr);
  gap: var(--about-column-gap);
  align-items: start;
}

.intro-grid h2 {
  margin-top: 17px;
  font-size: var(--font-about-title-size);
  line-height: 1.24;
  max-width: 100%;
  overflow-wrap: normal;
}

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

.intro-grid p {
  font-size: 1.05rem;
  color: var(--color-muted);
  line-height: 1.86;
  padding-top: 6px;
}

.word-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 27px;
}

.word-tag {
  border: 1px solid #dbe5ed;
  border-radius: 999px;
  padding: 6px 13px;
  color: var(--color-body);
  font-size: .72rem;
  font-weight: 700;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: end;
  margin-bottom: 29px;
}

.section-heading h2 {
  margin-top: 10px;
}

.link-arrow {
  font-size: .84rem;
  font-weight: 800;
  color: var(--color-accent);
  border-bottom: 1px solid #91b8d0;
  padding-bottom: 3px;
  white-space: nowrap;
}

.research-home-section {
  padding-top: 0;
  padding-bottom: 0;
}

.research-home-panel {
  width: 100%;
  min-height: 0;
  padding: 38px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--card-radius);
}

.research-home-panel .section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
}

.research-home-panel .section-heading h2 {
  font-size: clamp(2.05rem, 3.4vw, 2.7rem);
  line-height: 1.15;
  margin-top: 15px;
}

.research-home-panel .research-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.research-home-panel .research-card {
  min-width: 0;
  background: #fff;
}

.research-home-section + .split-home {
  padding-top: 22px;
}


/* ----- HOME CARDS ----- */

.research-grid {
  display: grid;
  grid-template-columns: repeat(3,minmax(0,1fr));
  gap: 17px;
}

.research-card {
  border: 1px solid var(--color-border);
  background: var(--color-card);
  border-radius: var(--card-radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 350px;
  transition: transform .2s,border-color .2s,box-shadow .2s;
  border-color: #e9edf2;
}

.research-card:hover {
  transform: translateY(-3px);
  border-color: #bbd4e6;
  box-shadow: 0 10px 24px rgba(25,55,85,.06);
}

.research-thumb {
  height: 155px;
  background: var(--color-soft);
  overflow: hidden;
  padding: 0;
}

.research-thumb img {
  height: 100%;
  width: 100%;
  object-fit: contain;
  border-radius: 5px;
  background: #fff;
}

.research-card:nth-child(3) .research-thumb img,.research-card:nth-child(4) .research-thumb img {
  object-fit: cover;
}

.research-info {
  padding: 22px 20px 23px;
  position: relative;
  flex: 1;
}

.research-info .small-label {
  font-size: .64rem;
}

.research-info h3 {
  font-size: var(--font-card-title-size);
  margin-top: 10px;
  color: var(--color-heading);
  letter-spacing: -.04em;
}

.research-info p {
  font-size: .85rem;
  line-height: 1.75;
  margin-top: 10px;
  color: var(--color-muted);
}

.split-home {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 17px;
}

.half-panel {
  padding: 41px 38px;
  border: 1px solid var(--color-border);
  border-radius: var(--card-radius);
  min-height: 420px;
  background: var(--color-card);
}

.half-panel h2 {
  font-size: clamp(1.75rem,2.8vw,2.7rem);
  margin: 18px 0 14px;
  color: var(--color-heading);
}

.half-panel p {
  font-size: .93rem;
  color: var(--color-muted);
  max-width: 455px;
  margin-bottom: 22px;
}

.teaser-person {
  border-top: 1px solid var(--color-border);
  margin-top: 30px;
  padding-top: 20px;
  display: flex;
  gap: 15px;
  align-items: center;
}

.teaser-avatar {
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #edf2f7;
  font-weight: 800;
  color: var(--color-accent);
  font-size: .9rem;
}

.teaser-person strong,.teaser-person small {
  display: block;
}

.teaser-person strong {
  font-size: .9rem;
}

.teaser-person small {
  font-size: .74rem;
  color: var(--color-muted);
}

.teaser-pub {
  border-top: 1px solid var(--color-border);
  padding-top: 14px;
  margin-top: 15px;
}

.teaser-pub small,.teaser-pub strong {
  display: block;
}

.teaser-pub small {
  color: var(--color-muted);
  font-size: .7rem;
}

.teaser-pub strong {
  color: var(--color-heading);
  font-size: .82rem;
  line-height: 1.6;
  margin-top: 5px;
}

.latest-home {
  padding-top: 40px;
  padding-bottom: 55px;
}

.placeholder {
  color: var(--color-muted);
  font-size: .9rem;
  padding: 16px 0;
}

.news-row {
  border-top: 1px solid var(--color-border);
  padding: 22px 0;
  display: flex;
  gap: 32px;
}

.news-row span {
  color: var(--color-muted);
  font-size: .8rem;
}

.news-row strong {
  font-size: .94rem;
}

.research-grid .research-card .research-thumb img {
  object-fit: cover;
  background: #f8f9fc;
}


/* ----- PEOPLE & PAGE HEADINGS ----- */

.page-head {
  padding: 72px 0 45px;
  border-bottom: 1px solid var(--color-border);
}

.page-head h1 {
  font-size: var(--font-page-title-size);
  color: var(--color-heading);
  margin: 12px 0;
}

.page-head p {
  max-width: 730px;
  font-size: 1.04rem;
  color: var(--color-muted);
}

.content-section {
  padding: 47px 0 15px;
}

.people-section-label {
  font-size: 1.5rem;
  margin-bottom: 25px;
  color: var(--color-heading);
}

.people-panel {
  display: grid;
  grid-template-columns: 220px 1fr;
  border: 1px solid var(--color-border);
  border-radius: 9px;
  overflow: hidden;
  max-width: 940px;
  min-height: 225px;
}

.person-visual {
  background: #edf3f7;
  min-height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.person-monogram {
  font-size: 4rem;
  font-weight: 800;
  color: var(--color-muted);
  letter-spacing: -.08em;
}

.person-visual img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center center;
}

.person-info {
  padding: 31px 36px;
}

.person-info h3 {
  font-size: 1.65rem;
  margin: 8px 0;
  color: var(--color-heading);
}

.person-info p {
  font-size: .91rem;
  color: var(--color-muted);
}

.person-meta {
  color: var(--color-muted);
  margin: 13px 0 14px;
  font-size: .84rem;
}

.student-visual {
  height: 195px;
  min-height: 195px;
}

.membership-hint {
  color: var(--color-muted);
  background: #fbfcfd;
  border: 1px solid var(--color-border);
  border-radius: 7px;
  padding: 20px;
  font-size: .9rem;
}


/* ----- RESEARCH DETAILS ----- */

.page-research {
  padding-top: 25px;
}

.research-detail {
  display: grid;
  grid-template-columns: 43% 57%;
  gap: 40px;
  align-items: center;
  padding: 49px 0;
  border-bottom: 1px solid var(--color-border);
  scroll-margin-top: 110px;
}

.detail-img {
  height: 290px;
  border: 1px solid var(--color-border);
  background: var(--color-soft);
  border-radius: 8px;
  padding: 12px;
  overflow: hidden;
}

.detail-img img {
  width: 100%;
  height: 100%;
  object-fit: contain !important;
  background: #fff;
  border-radius: 4px;
}

.research-detail:nth-child(3) .detail-img img,.research-detail:nth-child(4) .detail-img img {
  object-fit: cover;
}

.detail-copy h2 {
  margin: 10px 0 16px;
  font-size: clamp(1.8rem,2.7vw,2.6rem);
  color: var(--color-heading);
}

.detail-copy p {
  max-width: 550px;
  color: var(--color-muted);
}

.topic-list {
  padding-left: 19px;
  margin-top: 18px;
  color: var(--color-muted);
  font-size: .92rem;
}

.topic-list li {
  padding: 3px 0;
}


/* ----- PUBLICATIONS ----- */

.publications-page-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 25px;
}

.scholar-button {
  flex-shrink: 0;
}

.pub-intro {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  font-size: .77rem;
  padding: 21px 0;
  color: var(--color-muted);
  border-bottom: 1px solid var(--color-border);
}

.pub-list {
  padding-top: 18px;
}

.pub-year {
  display: grid;
  grid-template-columns: 115px 1fr;
  gap: 26px;
  border-bottom: 1px solid var(--color-border);
  padding: 32px 0;
}

.pub-year h2 {
  font-size: 1.48rem;
  color: var(--color-accent);
  padding-top: 4px;
}

.publication-card {
  padding: 6px 0 20px;
  margin-bottom: 19px;
  border-bottom: 1px solid #edf0f3;
}

.publication-card:last-child {
  border-bottom: 0;
  margin-bottom: 0;
}

.publication-card h3 {
  font-size: 1.04rem;
  color: var(--color-heading);
  line-height: 1.55;
  margin: 9px 0;
}

.pub-meta {
  color: var(--color-muted);
  font-size: .78rem;
  line-height: 1.6;
}

.pub-actions {
  display: flex;
  justify-content: space-between;
  margin-top: 10px;
  font-size: .79rem;
  color: var(--color-muted);
}

.pub-actions a {
  color: var(--color-accent);
  font-weight: 700;
}

.pub-disclaimer {
  font-size: .76rem;
  color: var(--color-muted);
  padding-top: 30px;
}


/* ----- CONTACT & NEWS ----- */

.status-panel {
  background: #fafcfd;
  border: 1px solid var(--color-border);
  padding: 35px;
  border-radius: 8px;
}

.status-panel h2 {
  font-size: 1.6rem;
  margin: 0 0 7px;
}

.status-panel p {
  color: var(--color-muted);
}

.simple-list {
  list-style: none;
  padding: 0;
}

.simple-list li {
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
}

.simple-list h3 {
  font-size: 1.12rem;
  margin: 7px 0;
}

.simple-list p {
  font-size: .93rem;
  color: var(--color-muted);
}

.contact-section {
  max-width: 880px;
}

.contact-section .contact-box {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  padding: 40px 46px;
}

.contact-box h2 {
  font-size: 2rem;
  margin: 12px 0;
  color: var(--color-heading);
}

.contact-department {
  color: var(--color-muted);
  margin-bottom: 31px;
}

.contact-details {
  display: grid;
  gap: 0;
}

.contact-item {
  padding: 16px 0;
  border-top: 1px solid #e7edf1;
}

.contact-item p, .contact-item a {
  color: var(--color-body);
  font-size: 1rem;
  line-height: 1.7;
}

.contact-item a {
  color: var(--color-accent);
}


/* ----- FOOTER ----- */

.site-footer {
  margin-top: 48px;
  border-top: 1px solid var(--color-border);
  background: var(--color-background);
  color: var(--color-muted);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 35px;
  padding-top: 50px;
  padding-bottom: 50px;
}

.footer-note {
  margin-top: 19px;
  max-width: 530px;
  color: var(--color-muted);
  font-size: .81rem;
}

.footer-right {
  justify-self: end;
  max-width: 420px;
  color: var(--color-muted);
  font-size: .82rem;
}

.footer-right strong {
  color: var(--color-heading);
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 19px;
  padding-bottom: 24px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  font-size: .72rem;
  color: var(--color-muted);
}

.footer-right a {
  color: var(--color-accent);
}


/* ----- OTHER ----- */

.people-more {
  display: flex;
  gap: 19px;
  flex-wrap: wrap;
}

.people-more a {
  color: var(--color-accent);
  font-size: .82rem;
  font-weight: 800;
}


/* ----- RESPONSIVE: (min-width:691px) ----- */

@media (min-width:691px) {
  .research-detail {
    grid-template-columns: minmax(0,43fr) minmax(0,57fr);
  }
}


/* ----- RESPONSIVE: (max-width:950px) ----- */

@media (max-width:950px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 48px 0 48px;
    min-height: 0;
  }
  .hero-copy {
    padding-right: 0;
  }
  .hero h1 {
    font-size: var(--font-hero-size);
  }
  .hero-visual {
    max-width: 740px;
  }
  .intro-grid {
    gap: var(--about-column-gap);
  }
  .top-nav {
    gap: 13px;
  }
  .top-nav a {
    font-size: var(--font-nav-size);
  }
  .research-detail {
    gap: 25px;
  }
  .hero-visual-illustration {
    max-width: 790px;
    width: 100%;
    margin: 0 auto;
  }
  .research-home-panel .research-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}


/* ----- RESPONSIVE: (max-width:690px) ----- */

@media (max-width:690px) {
  .wrap {
    padding: 0 20px;
  }
  .nav-inner {
    min-height: 72px;
  }
  .brand-title {
    font-size: 1.38rem;
  }
  .brand-subtitle {
    font-size: .5rem;
  }
  .menu-toggle {
    display: block;
  }
  .top-nav {
    display: none;
    position: absolute;
    top: 71px;
    left: 0;
    right: 0;
    background: var(--color-background);
    padding: 14px 20px 22px;
    flex-direction: column;
    align-items: flex-start;
    gap: 3px;
    border-bottom: 1px solid var(--color-border);
  }
  .top-nav.open {
    display: flex;
  }
  .top-nav a {
    padding: 9px 0;
    font-size: .92rem;
  }
  .hero {
    padding: 36px 0 40px;
    min-height: 0;
  }
  .hero h1 {
    font-size: var(--font-hero-size-mobile);
    margin: 19px 0;
  }
  .hero-visual {
    gap: 7px;
  }
  .section {
    padding: 53px 0;
  }
  .intro-grid,.split-home,.research-grid,.research-detail,.footer-inner,.people-panel,.pub-year {
    grid-template-columns: 1fr;
  }
  .intro-grid p {
    padding-top: 0;
  }
  .intro-grid {
    row-gap: 22px;
  }
  .intro-grid h2 {
    font-size: clamp(1.85rem, 7vw, 2.35rem);
  }
  .research-card {
    min-height: 0;
  }
  .research-thumb {
    height: 172px;
  }
  .half-panel {
    min-height: 0;
    padding: 30px 25px;
  }
  .footer-inner {
    padding-top: 35px;
    padding-bottom: 30px;
  }
  .footer-right {
    justify-self: start;
  }
  .footer-bottom {
    flex-wrap: wrap;
  }
  .page-head {
    padding: 48px 0 33px;
  }
  .people-panel {
    max-width: none;
  }
  .person-visual {
    min-height: 170px;
    height: 170px;
  }
  .research-detail {
    gap: 20px;
    padding: 35px 0;
  }
  .detail-img {
    height: 210px;
  }
  .pub-year {
    gap: 8px;
    padding: 23px 0;
  }
  .pub-intro {
    flex-wrap: wrap;
    gap: 0;
  }
  .publications-page-head {
    align-items: start;
    flex-direction: column;
  }
  .scholar-button {
    margin-top: 3px;
  }
  .section-heading {
    align-items: start;
    flex-direction: column;
    gap: 12px;
  }
  .hero-art-caption {
    text-align: center;
  }
  .contact-section .contact-box {
    padding: 26px 24px;
  }
  .research-home-panel {
    padding: 24px 18px;
  }
  .research-home-panel .section-heading {
    align-items: flex-start;
    gap: 12px;
  }
  .research-home-panel .section-heading h2 {
    font-size: 2.05rem;
  }
  .research-home-panel .research-grid {
    grid-template-columns: 1fr;
  }
  .research-home-section + .split-home {
    padding-top: 20px;
  }
  .people-panel > .person-visual {
    min-height: 0 !important;
    height: auto !important;
    width: 100%;
    box-sizing: border-box;
    padding: 16px;
    background: var(--theme-soft-background, #f3f6f8);
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .people-panel > .person-visual img {
    display: block;
    width: auto !important;
    height: auto !important;
    max-width: 100%;
    max-height: 390px;
    object-fit: contain !important;
    object-position: center center;
    border-radius: 5px;
  }
  .people-panel > .person-info {
    padding: 25px 22px;
  }
}


/* =====================================================================
   사용자 설정 (직접 수정하는 곳) — FONT / TEXT COLOR / BUTTON / BACKGROUND
   =====================================================================

   GitHub > assets > styles.css 에서 이 부분만 바꿔주세요.
   예) --color-heading: #153758; → --color-heading: #000000;
   ① 원하는 색상의 HEX 코드(#RRGGBB)로 변경
   ② Commit changes → GitHub Actions 자동 갱신

   별도 theme.css 파일은 더 이상 필요하지 않습니다.
*/
:root {
  /* A. 글씨 색상 ------------------------------------------------------- */
  --color-heading: #153758;       /* 제목, 사람 이름, 섹션 제목 */
  --color-body: #172C3C;          /* 본문 기본 텍스트 */
  --color-muted: #687988;         /* 보조 문장, 설명글 */
  --color-accent: #206A9E;        /* 소제목/키워드/강조 문구/링크 */
  --color-nav: #536676;           /* 상단 메뉴 글씨 */
  --color-nav-active: #155B8B;    /* 선택된 상단 메뉴 */

  /* B. 버튼 및 배경 ---------------------------------------------------- */
  --color-background: #FFFFFF;    /* 전체 페이지 배경 */
  --color-card: #FFFFFF;          /* 카드 배경 */
  --color-soft: #F7F9FA;          /* 사진 뒤 부드러운 배경 */
  --color-border: #E6EBEF;        /* 박스 경계선 */
  --color-button: #164C7B;        /* 기본 버튼 배경 */
  --color-button-hover: #0D365B;  /* 마우스를 올렸을 때 버튼 배경 */
  --color-button-text: #FFFFFF;   /* 기본 버튼 글씨 */

  /* C. 글꼴 ------------------------------------------------------------ */
  --font-body: 'DM Sans', Arial, sans-serif;
  --font-heading: 'Manrope', Arial, sans-serif;

  /* D. 글자 크기 ------------------------------------------------------- */
  --font-body-size: 16px;          /* 기본 글자 크기 */
  --font-nav-size: 0.89rem;        /* 상단 메뉴 크기 */
  --font-hero-size: clamp(2.55rem, 4.05vw, 4.45rem);
  --font-hero-size-mobile: clamp(2.4rem, 10vw, 3.6rem);
  --font-page-title-size: clamp(2.9rem, 5vw, 4.6rem);
  --font-section-title-size: clamp(1.9rem, 3.1vw, 3rem);
  --font-card-title-size: 1.14rem;

  /* About the Lab 큰 제목 크기: 좌측 문구를 더 작게/크게 */
  --font-about-title-size: clamp(1.8rem, 2.65vw, 2.4rem);

  /* E. 도형 및 레이아웃 ------------------------------------------------ */
  --button-radius: 6px;           /* 버튼 둥근 정도 */
  --card-radius: 12px;            /* 카드 둥근 정도 */
  --layout-width: 1240px;        /* 웹페이지 가로 최대 폭 */
  --about-column-gap: 32px;      /* About 제목과 오른쪽 설명 사이 간격 */
}