:root {
  --ink: #101417;
  --muted: #687174;
  --paper: #fbfaf6;
  --bone: #f0ede5;
  --sage: #667b68;
  --moss: #26392f;
  --line: rgba(16, 20, 23, 0.16);
  --white: #ffffff;
  --shadow: 0 30px 90px rgba(16, 20, 23, 0.16);
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family:
    ui-sans-serif,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    "Noto Sans KR",
    sans-serif;
  letter-spacing: 0;
}

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

img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 74px;
  padding: 0 clamp(20px, 4vw, 56px);
  color: #fff;
  transition:
    background 180ms ease,
    color 180ms ease,
    border-color 180ms ease;
}

.site-header.is-scrolled {
  border-bottom: 1px solid var(--line);
  background: rgba(251, 250, 246, 0.9);
  color: var(--ink);
  backdrop-filter: blur(18px);
}

.brand,
.nav,
.hero-actions,
.site-footer {
  display: flex;
  align-items: center;
}

.brand {
  width: fit-content;
  gap: 10px;
  font-weight: 950;
}

.brand-symbol {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-size: 13px;
}

.nav {
  gap: 30px;
  font-size: 14px;
  font-weight: 850;
}

.nav-action {
  justify-self: end;
  border: 1px solid currentColor;
  border-radius: 999px;
  padding: 12px 18px;
  font-size: 14px;
  font-weight: 950;
}

.hero {
  position: relative;
  min-height: 100svh;
  overflow: hidden;
  background: var(--ink);
}

.hero > img,
.hero-shade {
  position: absolute;
  inset: 0;
}

.hero > img {
  object-position: 62% center;
  transform: scale(1.02);
}

.hero-shade {
  z-index: 1;
  background:
    linear-gradient(90deg, rgba(12, 16, 16, 0.78), rgba(12, 16, 16, 0.34) 46%, rgba(12, 16, 16, 0.05)),
    linear-gradient(0deg, rgba(12, 16, 16, 0.62), transparent 55%);
}

.hero-content {
  position: relative;
  z-index: 2;
  display: flex;
  width: min(690px, calc(100% - 40px));
  min-height: 100svh;
  flex-direction: column;
  justify-content: flex-end;
  padding: 112px 0 clamp(78px, 12vh, 132px) clamp(20px, 4.5vw, 66px);
  color: #fff;
}

.studio-label,
.section-kicker {
  color: #cbd7c1;
  font-size: 12px;
  font-weight: 950;
  letter-spacing: 0.15em;
}

h1 {
  display: grid;
  gap: 2px;
  margin: 18px 0 24px;
  font-size: clamp(58px, 7.8vw, 116px);
  font-weight: 950;
  line-height: 0.96;
}

h1 span {
  display: block;
  word-break: keep-all;
}

.hero-text {
  max-width: 520px;
  margin-bottom: 30px;
  color: rgba(255, 255, 255, 0.86);
  font-size: clamp(17px, 1.45vw, 21px);
  line-height: 1.7;
  word-break: keep-all;
}

.hero-actions {
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 999px;
  padding: 0 24px;
  font: inherit;
  font-weight: 950;
  cursor: pointer;
  transition:
    transform 160ms ease,
    background 160ms ease,
    color 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button.light {
  background: #fff;
  color: var(--ink);
}

.button.glass {
  border: 1px solid rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  backdrop-filter: blur(12px);
}

.button.dark {
  background: var(--moss);
  color: #fff;
}

.hero-note {
  position: absolute;
  right: clamp(20px, 4vw, 56px);
  bottom: clamp(22px, 5vw, 56px);
  z-index: 2;
  display: grid;
  gap: 7px;
  width: min(340px, calc(100% - 40px));
  border-top: 1px solid rgba(255, 255, 255, 0.42);
  padding-top: 18px;
  color: #fff;
}

.hero-note span,
.hero-note small {
  color: rgba(255, 255, 255, 0.72);
}

.hero-note strong {
  font-size: 28px;
  line-height: 1.1;
}

.method,
.space,
.class-scene,
.booking,
.notice,
.visit {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.method {
  padding: 116px 0 96px;
}

.method-head {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: clamp(24px, 6vw, 96px);
  align-items: end;
  margin-top: 12px;
}

h2 {
  margin: 0;
  font-size: clamp(38px, 4.7vw, 74px);
  font-weight: 950;
  line-height: 1.08;
  word-break: keep-all;
}

.method-head p,
.space-copy p,
.booking-intro p {
  color: var(--muted);
  line-height: 1.75;
  word-break: keep-all;
}

.method-lines {
  display: grid;
  margin-top: 70px;
  border-top: 1px solid var(--line);
}

.method-lines article {
  display: grid;
  grid-template-columns: 80px 0.7fr 1fr;
  gap: 24px;
  align-items: baseline;
  border-bottom: 1px solid var(--line);
  padding: 26px 0;
}

.method-lines span {
  color: var(--sage);
  font-weight: 950;
}

.method-lines strong {
  font-size: 24px;
}

.method-lines p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.68;
}

.space {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  grid-template-areas:
    "copy main"
    "detail main";
  gap: 22px;
  padding: 40px 0 112px;
}

.space-copy {
  grid-area: copy;
  align-self: end;
  padding: 28px 0 12px;
}

.space-main {
  grid-area: main;
  min-height: 760px;
}

.space-detail {
  grid-area: detail;
  min-height: 360px;
}

figure {
  margin: 0;
  overflow: hidden;
  border-radius: 28px;
  background: var(--bone);
  box-shadow: var(--shadow);
}

.class-scene {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  align-items: stretch;
  overflow: hidden;
  border-radius: 32px;
  background: var(--moss);
  color: #fff;
}

.class-scene img {
  min-height: 620px;
  object-position: center;
}

.class-scene > div {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(32px, 6vw, 72px);
}

.class-scene dl {
  display: grid;
  gap: 0;
  margin: 40px 0 0;
}

.class-scene dl div {
  border-top: 1px solid rgba(255, 255, 255, 0.24);
  padding: 18px 0;
}

.class-scene dt {
  margin-bottom: 8px;
  color: #dce8d3;
  font-weight: 950;
}

.class-scene dd {
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
  line-height: 1.7;
}

.booking {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(24px, 5vw, 72px);
  align-items: start;
  padding: 116px 0;
}

.booking-intro {
  position: sticky;
  top: 104px;
}

.booking-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  border-top: 1px solid var(--line);
  padding-top: 22px;
}

label {
  display: grid;
  gap: 8px;
  color: #485057;
  font-size: 14px;
  font-weight: 850;
}

select,
input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
  color: var(--ink);
  font: inherit;
  padding: 15px 0;
}

textarea {
  resize: vertical;
}

.wide {
  grid-column: 1 / -1;
}

.notice {
  padding: 0 0 110px;
}

.notice h2 {
  margin-top: 12px;
}

.notice-list {
  display: grid;
  margin-top: 34px;
  border-top: 1px solid var(--line);
}

.notice-list a {
  display: grid;
  grid-template-columns: 90px 1fr 90px;
  gap: 24px;
  align-items: center;
  border-bottom: 1px solid var(--line);
  padding: 24px 0;
}

.notice-list time,
.notice-list span {
  color: var(--muted);
}

.notice-list strong {
  font-size: 20px;
  word-break: keep-all;
}

.visit {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(24px, 5vw, 72px);
  border-top: 1px solid var(--line);
  padding: 84px 0 106px;
}

.visit dl {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 28px;
  margin: 0;
}

.visit dt {
  margin-bottom: 8px;
  color: var(--sage);
  font-size: 13px;
  font-weight: 950;
}

.visit dd {
  margin: 0;
  color: #3f4648;
  line-height: 1.6;
}

.site-footer {
  justify-content: center;
  gap: 24px;
  border-top: 1px solid var(--line);
  padding: 30px 20px 38px;
  color: var(--muted);
  font-size: 14px;
}

.site-footer span {
  color: var(--ink);
  font-weight: 950;
}

.mobile-cta {
  display: none;
}

.section-reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 540ms ease,
    transform 540ms ease;
}

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

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: 1fr auto;
    min-height: 64px;
    padding: 0 18px;
  }

  .nav,
  .nav-action {
    display: none;
  }

  .hero {
    min-height: 100svh;
  }

  .hero > img {
    object-position: 58% center;
  }

  .hero-shade {
    background:
      linear-gradient(0deg, rgba(12, 16, 16, 0.78), rgba(12, 16, 16, 0.2) 62%, rgba(12, 16, 16, 0.16)),
      linear-gradient(90deg, rgba(12, 16, 16, 0.38), transparent);
  }

  .hero-content {
    width: min(100% - 36px, 520px);
    min-height: 100svh;
    padding: 86px 0 168px;
    margin: 0 auto;
  }

  h1 {
    font-size: clamp(52px, 16vw, 74px);
  }

  .hero-note {
    right: 18px;
    bottom: 24px;
    left: 18px;
    width: auto;
  }

  .hero-note strong {
    font-size: 23px;
  }

  .hero-actions .button {
    width: 100%;
    padding: 0 12px;
    font-size: 14px;
  }

  .method,
  .space,
  .class-scene,
  .booking,
  .notice,
  .visit {
    width: min(100% - 36px, 680px);
  }

  .method,
  .booking {
    padding: 72px 0;
  }

  .method-head,
  .space,
  .class-scene,
  .booking,
  .visit {
    grid-template-columns: 1fr;
  }

  h2 {
    font-size: clamp(34px, 10vw, 48px);
  }

  .method-lines {
    margin-top: 42px;
  }

  .method-lines article {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .space {
    grid-template-areas:
      "copy"
      "main"
      "detail";
    padding-bottom: 72px;
  }

  .space-main,
  .space-detail,
  .class-scene img {
    min-height: 0;
    aspect-ratio: 4 / 5;
  }

  .class-scene {
    width: 100%;
    border-radius: 0;
  }

  .class-scene > div {
    padding: 34px 18px 48px;
  }

  .booking-intro {
    position: static;
  }

  .booking-form,
  .visit dl,
  .notice-list a {
    grid-template-columns: 1fr;
  }

  .notice-list a {
    gap: 8px;
  }

  .site-footer {
    flex-wrap: wrap;
    padding-bottom: 90px;
  }

  .mobile-cta {
    position: fixed;
    right: 16px;
    bottom: 16px;
    left: 16px;
    z-index: 80;
    display: inline-flex;
    min-height: 56px;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    background: #fff;
    color: var(--ink);
    font-weight: 950;
    box-shadow: 0 18px 44px rgba(16, 20, 23, 0.24);
    opacity: 0;
    pointer-events: none;
    transform: translateY(18px);
    transition:
      opacity 180ms ease,
      transform 180ms ease;
  }

  .mobile-cta.is-visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }
}

@media (max-width: 420px) {
  .brand span:last-child {
    font-size: 15px;
  }

  .hero-actions .button {
    min-height: 50px;
  }
}