:root {
  color-scheme: light;
  --bg: #faf8f5;
  --paper: #fffdfa;
  --ink: #171412;
  --muted: #6a625b;
  --line: #dcd4ca;
  --accent: #a43a2c;
  --black: #11100f;
  --max: 1180px;
  --header-h: 74px;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", "Segoe UI", sans-serif;
  line-height: 1.65;
  letter-spacing: 0;
  word-break: keep-all;
  overflow-x: clip;
}

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

a {
  color: inherit;
}

button,
input {
  font: inherit;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 100;
  padding: 10px 14px;
  background: #fff;
  color: #000;
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  min-height: calc(var(--header-h) + env(safe-area-inset-top));
  padding: env(safe-area-inset-top) 18px 0;
  background: rgba(250, 248, 245, 0.94);
  border-bottom: 1px solid rgba(220, 212, 202, 0.88);
  backdrop-filter: blur(14px);
}

.nav {
  width: min(100%, var(--max));
  min-height: var(--header-h);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  min-width: 0;
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  padding: 2px 0 4px;
  text-decoration: none;
}

.brand-logo {
  width: clamp(138px, 15vw, 176px);
  height: auto;
}

.nav-links {
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 2px;
}

.nav-links a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0 10px;
  text-decoration: none;
  font-size: 0.94rem;
  font-weight: 750;
  color: #2a2521;
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a:focus-visible,
.nav-links a.is-current {
  color: var(--accent);
  outline: none;
}

.nav-swap {
  --nav-w: 72px;
  position: relative;
  justify-content: center;
  min-width: var(--nav-w);
  overflow: hidden;
}

.nav-swap[data-nav="team"] {
  --nav-w: 100px;
}

.nav-swap[data-nav="lesson"],
.nav-swap[data-nav="products"] {
  --nav-w: 78px;
}

.nav-swap[data-nav="career"] {
  --nav-w: 64px;
}

.nav-swap[data-nav="video"] {
  --nav-w: 86px;
}

.nav-swap .nav-ko,
.nav-swap .nav-en {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: opacity 180ms ease, transform 180ms ease;
}

.nav-swap .nav-en {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: translateY(5px);
  font-size: 0.74rem;
  font-weight: 880;
}

.nav-swap:hover .nav-ko,
.nav-swap:focus-visible .nav-ko {
  opacity: 0;
  transform: translateY(-5px);
}

.nav-swap:hover .nav-en,
.nav-swap:focus-visible .nav-en {
  opacity: 1;
  transform: translateY(0);
}

.wrap {
  width: min(100%, var(--max));
  margin: 0 auto;
}

.section-kicker,
.eyebrow {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 900;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  letter-spacing: 0;
}

.team-hero {
  position: relative;
  min-height: min(760px, calc(100svh - var(--header-h)));
  display: flex;
  align-items: flex-end;
  isolation: isolate;
  overflow: hidden;
  background: #201c19;
}

.team-hero picture,
.team-hero picture img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.team-hero picture img {
  object-fit: cover;
  object-position: center 44%;
}

.team-hero-shade {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(0deg, rgba(10, 9, 8, 0.88), rgba(10, 9, 8, 0.16) 72%),
    linear-gradient(90deg, rgba(10, 9, 8, 0.68), rgba(10, 9, 8, 0.02) 70%);
}

.team-hero-content {
  position: relative;
  z-index: 2;
  width: min(100%, var(--max));
  margin: 0 auto;
  padding: 88px 22px;
  color: #fff;
}

.team-hero h1 {
  max-width: 900px;
  margin: 0;
  font-size: 3.9rem;
  line-height: 1.12;
  font-weight: 850;
}

.team-hero-content > p:last-child {
  max-width: 620px;
  margin: 26px 0 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.08rem;
}

.team-intro,
.teacher-section,
.team-principles,
.profile-intro,
.profile-story,
.profile-standards,
.profile-career {
  padding: 104px 22px;
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: 64px;
}

.intro-grid h2,
.section-heading h2,
.principles-head h2,
.team-cta h2,
.profile-title h1,
.story-quote,
.profile-section-title {
  margin: 0;
  line-height: 1.16;
}

.intro-grid h2,
.section-heading h2,
.principles-head h2,
.team-cta h2,
.profile-section-title {
  font-size: 2.55rem;
}

.intro-copy {
  max-width: 680px;
  color: var(--muted);
  font-size: 1.08rem;
}

.intro-copy p {
  margin: 0;
}

.intro-copy p + p {
  margin-top: 20px;
}

.teacher-section {
  background: var(--paper);
}

.section-heading {
  margin-bottom: 46px;
}

.teacher-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 52px 24px;
}

.teacher-card {
  min-width: 0;
  text-decoration: none;
}

.teacher-photo {
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background: #e8e4df;
}

.teacher-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 440ms cubic-bezier(0.2, 0.7, 0.2, 1);
}

.teacher-card:nth-child(1) .teacher-photo img {
  object-position: center 32%;
}

.teacher-card:nth-child(2) .teacher-photo img {
  object-position: 46% center;
}

.teacher-card:nth-child(3) .teacher-photo img {
  object-position: 54% center;
}

.teacher-meta {
  min-height: 92px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 19px 0 0;
  border-top: 1px solid var(--ink);
}

.teacher-role {
  display: block;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 750;
}

.teacher-meta h3 {
  margin: 3px 0 0;
  font-size: 1.42rem;
  line-height: 1.25;
}

.teacher-arrow {
  font-size: 1.24rem;
  transition: transform 180ms ease;
}

.teacher-card:hover .teacher-photo img,
.teacher-card:focus-visible .teacher-photo img {
  transform: scale(1.025);
}

.teacher-card:hover .teacher-arrow,
.teacher-card:focus-visible .teacher-arrow {
  transform: translate(3px, -3px);
}

.teacher-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 5px;
}

.team-principles {
  background: var(--black);
  color: #fff;
}

.team-principles .section-kicker {
  color: #dc776a;
}

.principles-head {
  margin-bottom: 58px;
}

.principle-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid rgba(255, 255, 255, 0.3);
}

.principle-list article {
  min-width: 0;
  padding: 26px 28px 0 0;
}

.principle-list article + article {
  padding-left: 28px;
  border-left: 1px solid rgba(255, 255, 255, 0.3);
}

.principle-list span {
  color: #dc776a;
  font-size: 0.76rem;
  font-weight: 900;
}

.principle-list h3 {
  margin: 28px 0 12px;
  font-size: 1.54rem;
}

.principle-list p {
  max-width: 310px;
  margin: 0;
  color: rgba(255, 255, 255, 0.7);
}

.team-cta {
  padding: 88px 22px;
  background: #d8d0c5;
}

.cta-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 40px;
}

.button {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 0 22px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: #fff;
  text-decoration: none;
  font-weight: 850;
}

.button:hover,
.button:focus-visible {
  background: transparent;
  color: var(--ink);
  outline: none;
}

.site-footer {
  padding: 48px 22px calc(52px + env(safe-area-inset-bottom));
  background: #0f0e0d;
  color: rgba(255, 255, 255, 0.72);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-inner {
  width: min(100%, var(--max));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 24px;
}

.footer-brand {
  color: #fff;
  font-size: 1.12rem;
  font-weight: 900;
}

.footer-info {
  margin: 0;
  display: grid;
  gap: 6px;
  font-size: 0.92rem;
}

.footer-info a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

/* Profile */
.profile-intro {
  background: var(--paper);
}

.profile-back {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 64px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 750;
}

.profile-back:hover,
.profile-back:focus-visible {
  color: var(--accent);
  outline: none;
}

.profile-head {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(260px, 0.85fr);
  gap: 72px;
  align-items: end;
}

.profile-title .section-kicker {
  margin-bottom: 18px;
}

.profile-title h1 {
  font-size: 5rem;
  font-weight: 900;
}

.profile-role {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.profile-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-content: flex-end;
}

.profile-tags span {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  padding: 0 13px;
  border: 1px solid var(--line);
  background: var(--bg);
  font-size: 0.86rem;
  font-weight: 750;
}

.profile-visual {
  width: 100%;
  aspect-ratio: 16 / 9;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: #e9e5e0;
}

.profile-visual img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.profile-story {
  background: var(--paper);
}

.story-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 80px;
  align-items: start;
}

.story-quote {
  max-width: 490px;
  font-size: 2.6rem;
  font-weight: 820;
}

.story-copy {
  max-width: 660px;
  color: var(--muted);
  font-size: 1.08rem;
}

.story-copy p {
  margin: 0;
}

.story-copy p + p {
  margin-top: 20px;
}

.profile-standards {
  background: var(--black);
  color: #fff;
}

.profile-standards .section-kicker {
  color: #dc776a;
}

.standards-grid {
  margin-top: 52px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid rgba(255, 255, 255, 0.28);
}

.standard {
  min-width: 0;
  padding: 28px 28px 0 0;
}

.standard + .standard {
  padding-left: 28px;
  border-left: 1px solid rgba(255, 255, 255, 0.28);
}

.standard strong {
  display: block;
  margin-bottom: 12px;
  font-size: 1.28rem;
}

.standard p {
  margin: 0;
  color: rgba(255, 255, 255, 0.7);
}

.profile-career {
  background: var(--bg);
}

.career-details {
  margin-top: 40px;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.career-details summary {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  cursor: pointer;
  list-style: none;
  font-size: 1.08rem;
  font-weight: 850;
}

.career-details summary::-webkit-details-marker {
  display: none;
}

.career-details summary::after {
  content: "+";
  flex: 0 0 auto;
  font-size: 1.42rem;
  font-weight: 400;
}

.career-details[open] summary::after {
  content: "−";
}

.career-list {
  margin: 0;
  padding: 4px 0 32px 1.15rem;
  display: grid;
  gap: 9px;
  color: var(--muted);
}

.profile-next {
  padding: 82px 22px;
  background: #d8d0c5;
}

.profile-next .cta-inner {
  align-items: center;
}

.profile-next h2 {
  margin: 0;
  font-size: 2.15rem;
  line-height: 1.2;
}

@media (max-width: 920px) {
  :root {
    --header-h: 66px;
  }

  .site-header {
    padding-left: 14px;
    padding-right: 14px;
  }

  .nav {
    align-items: stretch;
    flex-direction: column;
    gap: 0;
    padding: 10px 0 8px;
  }

  .brand {
    justify-content: center;
    min-height: 38px;
  }

  .nav-links {
    width: 100%;
    justify-content: flex-start;
    overflow-x: auto;
    padding-top: 6px;
    scrollbar-width: none;
  }

  .nav-links::-webkit-scrollbar {
    display: none;
  }

  .nav-links a {
    padding: 0 10px;
    font-size: 0.9rem;
  }

  .team-hero h1 {
    font-size: 3.1rem;
  }

  .intro-grid,
  .profile-head,
  .story-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

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

  .profile-title h1 {
    font-size: 4rem;
  }

  .profile-tags {
    max-width: 560px;
  }

  .profile-visual {
    aspect-ratio: 4 / 3;
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .brand-logo {
    width: 142px;
  }

  .nav-links {
    justify-content: center;
  }

  .nav-links a {
    padding: 0 4px;
    font-size: 0.84rem;
  }

  .nav-swap[data-nav="team"] {
    --nav-w: 74px;
  }

  .nav-swap[data-nav="lesson"] {
    --nav-w: 66px;
  }

  .nav-swap[data-nav="career"] {
    --nav-w: 42px;
  }

  .nav-swap[data-nav="products"] {
    --nav-w: 68px;
  }

  .nav-swap[data-nav="video"] {
    --nav-w: 70px;
  }

  .team-hero {
    min-height: 620px;
  }

  .team-hero picture img {
    object-position: 56% center;
  }

  .team-hero-shade {
    background:
      linear-gradient(0deg, rgba(10, 9, 8, 0.91), rgba(10, 9, 8, 0.23) 76%),
      linear-gradient(90deg, rgba(10, 9, 8, 0.46), rgba(10, 9, 8, 0.04));
  }

  .team-hero-content {
    padding: 72px 18px 54px;
  }

  .team-hero h1 {
    font-size: 2.55rem;
  }

  .team-hero-content > p:last-child {
    font-size: 1rem;
  }

  .team-intro,
  .teacher-section,
  .team-principles,
  .profile-intro,
  .profile-story,
  .profile-standards,
  .profile-career {
    padding: 76px 18px;
  }

  .intro-grid h2,
  .section-heading h2,
  .principles-head h2,
  .team-cta h2,
  .profile-section-title {
    font-size: 2rem;
  }

  .intro-copy,
  .story-copy {
    font-size: 1rem;
  }

  .teacher-grid {
    gap: 38px 12px;
  }

  .teacher-meta {
    min-height: 78px;
    padding-top: 13px;
  }

  .teacher-meta h3 {
    font-size: 1.14rem;
  }

  .teacher-arrow {
    display: none;
  }

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

  .principle-list article,
  .standard {
    padding: 24px 0;
  }

  .principle-list article + article,
  .standard + .standard {
    padding-left: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.28);
    border-left: 0;
  }

  .principle-list h3 {
    margin-top: 20px;
  }

  .team-cta,
  .profile-next {
    padding: 66px 18px;
  }

  .cta-inner {
    grid-template-columns: 1fr;
    align-items: start;
    gap: 28px;
  }

  .button {
    width: 100%;
  }

  .profile-back {
    margin-bottom: 46px;
  }

  .profile-title h1 {
    font-size: 3.15rem;
  }

  .profile-visual {
    aspect-ratio: 1 / 1;
  }

  .story-quote {
    font-size: 2rem;
  }

  .profile-next h2 {
    font-size: 1.82rem;
  }
}

@media (max-width: 360px) {
  .nav-links {
    justify-content: flex-start;
  }
}

@media (hover: none), (pointer: coarse) {
  .nav-swap:hover .nav-ko,
  .nav-swap:focus-visible .nav-ko {
    opacity: 1;
    transform: none;
  }

  .nav-swap:hover .nav-en,
  .nav-swap:focus-visible .nav-en {
    opacity: 0;
    transform: translateY(5px);
  }

  .teacher-card:hover .teacher-photo img,
  .teacher-card:focus-visible .teacher-photo img {
    transform: none;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}