:root {
  --ink: #151515;
  --paper: #ffffff;
  --soft: #f7f8f5;
  --soft-green: #eef4ee;
  --sage: #667a61;
  --sage-deep: #3e513b;
  --rose: #d7aaa2;
  --line: rgba(21, 21, 21, 0.11);
  --muted: rgba(21, 21, 21, 0.62);
  --shadow: 0 24px 70px rgba(23, 28, 22, 0.12);
  --shadow-soft: 0 14px 42px rgba(23, 28, 22, 0.08);
  --page: 16px;
  --max: 1440px;
  --radius-lg: 30px;
  --radius-md: 20px;
  --radius-sm: 14px;
  font-family: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  max-width: 100%;
  overflow-x: hidden;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 15px;
  line-height: 1.5;
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
}

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

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

button {
  font: inherit;
}

:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 64px;
  padding: 8px var(--page);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  font-size: 15px;
  font-weight: 800;
  line-height: 1;
}

.brand-symbol {
  display: grid;
  flex: 0 0 46px;
  place-items: center;
  width: 46px;
  height: 46px;
}

.brand-symbol img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.brand-name {
  white-space: nowrap;
}

.menu-toggle {
  position: static;
  display: inline-flex;
  flex: 0 0 44px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 7px;
  width: 44px;
  height: 44px;
  margin-left: auto;
  padding: 0;
  background: var(--paper);
  border: 1px solid rgba(21, 21, 21, 0.28);
  border-radius: 999px;
  cursor: pointer;
}

.menu-toggle span {
  width: 18px;
  height: 1px;
  background: var(--ink);
}

.site-nav {
  position: absolute;
  top: 70px;
  left: var(--page);
  right: var(--page);
  display: none;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.98);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
}

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

.site-nav a {
  min-height: 52px;
  padding: 16px 18px;
  border-top: 1px solid var(--line);
  font-size: 15px;
  font-weight: 700;
}

.site-nav a:first-child {
  border-top: 0;
}

.header-cta {
  display: none;
}

.hero {
  position: relative;
  display: grid;
  gap: 24px;
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 28px var(--page) 42px;
  overflow: hidden;
  background: var(--paper);
}

.hero-panel {
  display: grid;
  align-content: center;
  min-width: 0;
  padding-top: 10px;
}

.eyebrow,
.section-index {
  margin: 0;
  color: var(--sage-deep);
  font-size: 12px;
  font-weight: 800;
  line-height: 1.35;
  text-transform: uppercase;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  justify-self: start;
  gap: 8px;
  padding: 7px 12px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 999px;
  text-transform: none;
}

.eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--ink);
}

.hero h1,
h2 {
  margin: 0;
  font-weight: 800;
  letter-spacing: 0;
}

.hero h1 {
  max-width: 9.8em;
  margin-top: 18px;
  font-size: 43px;
  line-height: 1.03;
}

.hero-copy {
  max-width: 390px;
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.58;
}

.hero-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  width: min(100%, 360px);
  margin-top: 24px;
}

.hero-actions a,
.header-cta,
.mobile-sticky-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 16px;
  background: var(--ink);
  color: var(--paper);
  border: 1px solid var(--ink);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 800;
  line-height: 1;
}

.hero-actions a + a {
  background: var(--paper);
  color: var(--ink);
  border-color: var(--line);
}

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

.hero-note {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.hero-note span {
  padding: 8px 11px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: rgba(21, 21, 21, 0.72);
  font-size: 12px;
  font-weight: 800;
}

.hero-visual {
  position: relative;
  min-width: 0;
}

.hero-media {
  width: 100%;
  height: clamp(320px, 92vw, 520px);
  object-fit: cover;
  object-position: center bottom;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.hero-card {
  position: absolute;
  left: 14px;
  bottom: 14px;
  width: min(76%, 270px);
  padding: 15px 16px;
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid rgba(21, 21, 21, 0.1);
  border-radius: 18px;
  box-shadow: 0 18px 44px rgba(23, 28, 22, 0.16);
  backdrop-filter: blur(14px);
}

.hero-card span {
  display: block;
  color: var(--ink);
  font-size: 12px;
  line-height: 1;
}

.hero-card p {
  margin: 8px 0 10px;
  color: rgba(21, 21, 21, 0.76);
  font-size: 12px;
  line-height: 1.45;
}

.hero-card strong {
  display: block;
  color: var(--sage-deep);
  font-size: 12px;
  line-height: 1.2;
}

.session-strip {
  padding: 10px var(--page) 42px;
  background: var(--paper);
}

.session-strip-shell {
  display: grid;
  gap: 12px;
  width: min(100%, var(--max));
  margin: 0 auto;
}

.session-strip article,
.flow-step,
.teacher-card,
.review-item {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
}

.session-strip article {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 4px 14px;
  padding: 18px;
}

.session-strip span {
  grid-row: span 2;
  color: var(--rose);
  font-size: 12px;
  font-weight: 800;
  line-height: 1.4;
}

.session-strip h2 {
  font-size: 18px;
  line-height: 1.18;
}

.session-strip p {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.section,
.details-section,
.reviews-section,
.closing-section {
  padding: 64px var(--page);
}

.section-head,
.method-copy,
.flow-steps,
.teacher-track,
.details-copy,
.detail-mosaic,
.reviews-content,
.closing-copy,
.footer-shell {
  width: min(100%, var(--max));
  margin: 0 auto;
}

.section-head {
  display: grid;
  gap: 16px;
}

h2 {
  max-width: 920px;
  font-size: 31px;
  line-height: 1.12;
}

.method-copy,
.section-intro {
  max-width: none;
  margin-top: 22px;
  color: rgba(21, 21, 21, 0.76);
  font-size: 16px;
  line-height: 1.64;
}

.method-copy {
  display: grid;
  grid-template-columns: 1fr;
}

.method-copy p,
.section-intro {
  max-width: 720px;
}

.method-copy p,
.story-copy p,
.teacher-card p,
.review-item p,
.footer-column p,
.copyright,
.section-intro {
  margin: 0;
}

.method-copy p + p,
.story-copy p + p,
.teacher-card p + p,
.review-item p + p {
  margin-top: 12px;
}

.flow-steps {
  display: grid;
  gap: 12px;
  margin-top: 32px;
}

.flow-step {
  display: grid;
  gap: 10px;
  padding: 20px;
}

.flow-step span {
  color: var(--rose);
  font-size: 13px;
  font-weight: 800;
}

.flow-step h3 {
  margin: 0;
  font-size: 22px;
  line-height: 1.2;
}

.flow-step p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.studio-story {
  display: grid;
  gap: 18px;
  width: min(100%, var(--max));
  margin: 0 auto;
  padding: 64px var(--page);
  background: var(--soft);
}

.story-image img {
  width: 100%;
  height: clamp(320px, 92vw, 540px);
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}

.story-copy {
  padding: 24px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}

.story-copy h2 {
  margin-top: 14px;
}

.story-copy p:not(.section-index) {
  color: rgba(21, 21, 21, 0.76);
  font-size: 16px;
  line-height: 1.62;
}

.story-thumbs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: 24px;
}

.story-thumbs img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

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

.details-copy {
  display: grid;
  gap: 16px;
}

.detail-mosaic {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-auto-flow: dense;
  grid-auto-rows: 132px;
  gap: 10px;
  margin-top: 28px;
}

.detail-card {
  min-width: 0;
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
}

.detail-card img {
  width: 100%;
  height: 100%;
  min-height: 0;
  object-fit: cover;
  transition: transform 420ms cubic-bezier(0.2, 0, 0, 1);
}

.detail-card.tall {
  grid-row: span 2;
}

.detail-card.wide {
  grid-column: span 2;
  grid-row: span 2;
}

.teachers-section {
  background: var(--soft-green);
}

.teacher-track {
  display: grid;
  gap: 14px;
  margin-top: 32px;
}

.teacher-card {
  display: grid;
  gap: 18px;
  padding: 12px;
}

.teacher-card img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: 16px;
}

.teacher-card div {
  padding: 0 4px 6px;
}

.person-name {
  margin: 0;
  font-size: 24px;
  font-weight: 800;
  line-height: 1.2;
}

.person-role {
  color: var(--sage);
  font-size: 12px;
  font-weight: 800;
  line-height: 1.36;
}

.teacher-card p:not(.person-name):not(.person-role) {
  color: rgba(21, 21, 21, 0.72);
  font-size: 14px;
  line-height: 1.58;
}

.reviews-section {
  display: grid;
  gap: 24px;
  background: var(--paper);
}

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

.reviews-image img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}

.reviews-content {
  display: grid;
}

.review-track {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 32px;
}

.review-item {
  min-height: 0;
  padding: 22px;
}

.review-item p {
  color: rgba(21, 21, 21, 0.76);
  font-size: 15px;
  line-height: 1.62;
}

.review-name {
  color: var(--sage-deep) !important;
  font-size: 12px !important;
  font-weight: 800;
  line-height: 1.36 !important;
}

.closing-section {
  display: grid;
  place-items: center;
  width: min(100%, var(--max));
  min-height: 380px;
  margin: 0 auto;
  background: linear-gradient(135deg, #f8f8f4 0%, #eef5ef 100%);
}

.closing-copy {
  display: grid;
  justify-items: center;
  text-align: center;
}

.closing-copy h2 {
  max-width: 660px;
  margin-top: 14px;
}

.closing-section .hero-actions {
  margin-inline: auto;
}

.site-footer {
  padding: 30px var(--page) 94px;
  border-top: 1px solid var(--line);
}

.footer-shell {
  display: grid;
  gap: 26px;
}

.footer-brand,
.footer-column p {
  font-size: 13px;
  font-weight: 800;
  line-height: 1.4;
}

.footer-column a {
  display: inline-block;
  margin-top: 10px;
  font-size: 19px;
  font-weight: 800;
  line-height: 1.36;
}

.copyright {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.36;
}

.mobile-sticky-cta {
  position: fixed;
  left: 12px;
  right: 12px;
  bottom: 12px;
  z-index: 60;
  min-height: 48px;
  box-shadow: var(--shadow-soft);
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 600ms ease, transform 600ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (hover: hover) {
  .detail-card:hover img {
    transform: scale(1.035);
  }
}

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

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .detail-card img {
    transition: none;
  }

  .detail-card:hover img {
    transform: none;
  }
}

@media (min-width: 700px) {
  :root {
    --page: 28px;
  }

  .hero h1 {
    font-size: 60px;
  }

  h2 {
    font-size: 42px;
  }

  .session-strip-shell,
  .flow-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .session-strip article {
    grid-template-columns: 1fr;
  }

  .story-thumbs {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .detail-mosaic {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .detail-card.wide {
    grid-column: span 2;
  }

  .teacher-card {
    grid-template-columns: minmax(190px, 0.42fr) minmax(0, 1fr);
    align-items: center;
  }

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

@media (min-width: 980px) {
  :root {
    --page: 48px;
  }

  .site-header,
  .hero,
  .studio-story,
  .reviews-section,
  .closing-section {
    width: min(100%, var(--max));
    margin-inline: auto;
  }

  .site-header {
    min-height: 72px;
    padding-block: 0;
  }

  .brand-symbol {
    flex-basis: 48px;
    width: 48px;
    height: 48px;
  }

  .menu-toggle {
    display: none;
  }

  .site-nav {
    position: static;
    display: flex;
    align-items: center;
    gap: 30px;
    margin-left: auto;
    overflow: visible;
    background: transparent;
    border: 0;
    border-radius: 0;
    box-shadow: none;
  }

  .site-nav a {
    min-height: 72px;
    padding: 28px 0 0;
    border-top: 0;
    color: rgba(21, 21, 21, 0.64);
    font-size: 13px;
    font-weight: 700;
  }

  .site-header .header-cta {
    display: inline-flex;
    min-height: 36px;
    margin-left: 8px;
    padding-inline: 18px;
    font-size: 12px;
  }

  .hero {
    grid-template-columns: minmax(0, 0.82fr) minmax(420px, 1fr);
    align-items: center;
    gap: 64px;
    min-height: 680px;
    padding: 74px var(--page) 86px;
    overflow: visible;
  }

  .hero-panel {
    padding-top: 0;
  }

  .hero h1 {
    max-width: 9em;
    font-size: 72px;
  }

  .hero-copy {
    max-width: 460px;
    font-size: 17px;
  }

  .hero-media {
    height: min(58vw, 560px);
    min-height: 520px;
  }

  .hero-card {
    left: -44px;
    bottom: 42px;
    width: 300px;
  }

  .section,
  .details-section,
  .reviews-section,
  .closing-section {
    padding: 104px var(--page);
  }

  .session-strip {
    padding: 0 var(--page) 42px;
  }

  .session-strip article {
    min-height: 142px;
    padding: 24px;
  }

  .section-head,
  .method-copy,
  .details-copy {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .method-copy {
    margin-top: 22px;
  }

  .flow-steps {
    gap: 16px;
    margin-top: 58px;
  }

  .flow-step {
    min-height: 210px;
    padding: 24px;
  }

  .studio-story {
    grid-template-columns: minmax(0, 1.02fr) minmax(420px, 0.98fr);
    align-items: center;
    gap: 24px;
    padding: 104px var(--page);
  }

  .story-image img {
    height: 650px;
  }

  .story-copy {
    padding: 34px;
  }

  .details-copy h2 {
    margin-top: 0;
  }

  .detail-mosaic {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    grid-auto-rows: 220px;
    gap: 16px;
    margin-top: 58px;
  }

  .detail-card img,
  .detail-card.tall img,
  .detail-card.wide img {
    min-height: 0;
  }

  .detail-card.tall {
    grid-row: span 2;
  }

  .detail-card.wide {
    grid-column: span 2;
    grid-row: span 1;
  }

  .detail-card:first-child {
    grid-column: span 2;
  }

  .teacher-track {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }

  .teacher-card {
    grid-template-columns: minmax(190px, 0.45fr) minmax(0, 1fr);
    gap: 22px;
    padding: 16px;
  }

  .reviews-section {
    grid-template-columns: minmax(360px, 0.44fr) minmax(0, 0.56fr);
    gap: 34px;
    align-items: center;
  }

  .reviews-image,
  .reviews-content {
    width: auto;
    margin: 0;
  }

  .reviews-image img {
    height: 100%;
    min-height: 660px;
  }

  .review-track {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .review-item {
    min-height: 280px;
  }

  .closing-section {
    min-height: 520px;
  }

  .footer-shell {
    grid-template-columns: 1.2fr repeat(2, minmax(140px, 0.6fr)) 1fr;
    gap: 32px;
  }

  .copyright {
    justify-self: end;
  }

  .mobile-sticky-cta {
    display: none;
  }
}