:root {
  --black: #181818;
  --ink: #24211d;
  --red: #9b1717;
  --ivory: #f6f1e8;
  --paper: #ebe4d8;
  --wood: #9a6a4d;
  --moss: #4f604a;
  --muted: #6f675d;
  --line: rgba(24, 24, 24, 0.14);
  --max: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--ivory);
  color: var(--ink);
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  line-height: 1.55;
}

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

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

.site-header {
  align-items: center;
  background: rgba(246, 241, 232, 0.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
  display: flex;
  gap: 24px;
  justify-content: space-between;
  left: 0;
  padding: 14px clamp(18px, 4vw, 54px);
  position: sticky;
  right: 0;
  top: 0;
  z-index: 10;
}

.brand {
  align-items: center;
  display: flex;
  min-width: 170px;
}

.brand-logo {
  height: 54px;
  object-fit: contain;
  width: auto;
}

.nav {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  justify-content: flex-end;
}

.nav a {
  color: #403c36;
  font-size: 14px;
}

.hero {
  align-items: center;
  background-image:
    linear-gradient(90deg, rgba(5, 5, 5, 0.92), rgba(5, 5, 5, 0.62) 42%, rgba(5, 5, 5, 0.12) 72%),
    linear-gradient(0deg, rgba(5, 5, 5, 0.7), rgba(5, 5, 5, 0.1) 48%, rgba(5, 5, 5, 0.22)),
    var(--hero-image, url("/03_Assets/Images/hero-01-jinshinkan-australia.png"));
  background-position:
    center center,
    center center,
    var(--hero-position, center center);
  background-size: cover, cover, cover;
  color: var(--ivory);
  display: flex;
  min-height: calc(100vh - 72px);
  overflow: hidden;
  padding: clamp(52px, 8vw, 96px) clamp(18px, 5vw, 72px);
  position: relative;
}

.hero::after {
  background: repeating-linear-gradient(135deg, rgba(246, 241, 232, 0.032) 0 1px, transparent 1px 20px);
  content: "";
  inset: 0;
  pointer-events: none;
  position: absolute;
}

.hero-copy {
  max-width: 790px;
  position: relative;
  z-index: 3;
}

.eyebrow {
  color: var(--red);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  margin: 0 0 12px;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #e1c0aa;
}

.copy-rotator {
  height: clamp(34px, 5vw, 54px);
  margin-bottom: 18px;
  position: relative;
}

.rotator-line {
  color: #e1c0aa;
  font-size: clamp(24px, 3vw, 42px);
  font-weight: 800;
  left: 0;
  line-height: 1;
  margin: 0;
  opacity: 0;
  position: absolute;
  top: 0;
  transform: translateY(10px);
  transition: opacity 700ms ease, transform 700ms ease;
}

.rotator-line.is-active {
  opacity: 1;
  transform: translateY(0);
}

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

h1 {
  font-size: clamp(50px, 7.5vw, 108px);
  font-weight: 850;
  line-height: 0.98;
  margin-bottom: 24px;
  max-width: 900px;
}

h2 {
  font-size: clamp(32px, 5vw, 62px);
  line-height: 1.03;
  margin-bottom: 18px;
}

h3 {
  font-size: 24px;
  line-height: 1.15;
  margin-bottom: 12px;
}

.hero-text {
  color: rgba(246, 241, 232, 0.86);
  font-size: clamp(20px, 2.1vw, 29px);
  max-width: 760px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.hero-art-mark {
  background: url("/03_Assets/Images/이름1.jpg") center center / cover;
  bottom: 8%;
  filter: brightness(1.34) contrast(1.32) saturate(0.88) sepia(0.12);
  left: clamp(560px, 50vw, 830px);
  mix-blend-mode: multiply;
  opacity: 0;
  pointer-events: none;
  position: absolute;
  top: 7%;
  transform: rotate(-1deg) translateY(8px);
  transition: opacity 420ms ease, transform 420ms ease;
  width: clamp(190px, 16vw, 290px);
  z-index: 1;
}

.hero-art-mark::before {
  background:
    linear-gradient(90deg, rgba(5, 5, 5, 0.1), transparent 18%, transparent 82%, rgba(5, 5, 5, 0.14)),
    linear-gradient(0deg, rgba(5, 5, 5, 0.08), transparent 26%, transparent 78%, rgba(5, 5, 5, 0.12));
  content: "";
  inset: 0;
  position: absolute;
}

.hero-art-mark::after {
  background: radial-gradient(ellipse at center, transparent 56%, rgba(5, 5, 5, 0.28) 86%);
  content: "";
  inset: -12%;
  position: absolute;
}

.hero[data-active-hero="1"] .hero-art-mark {
  opacity: 0;
  transform: rotate(-1deg) translateY(8px);
}

.hero-thumbs {
  bottom: clamp(18px, 4vw, 42px);
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(3, 92px);
  position: absolute;
  right: clamp(18px, 4vw, 54px);
  z-index: 4;
}

.hero-thumb {
  background: rgba(246, 241, 232, 0.1);
  border: 1px solid rgba(246, 241, 232, 0.32);
  cursor: pointer;
  height: 64px;
  opacity: 0.72;
  overflow: hidden;
  padding: 0;
  position: relative;
  transition: border-color 180ms ease, opacity 180ms ease, transform 180ms ease;
}

.hero-thumb:hover,
.hero-thumb.is-active {
  border-color: #e1c0aa;
  opacity: 1;
  transform: translateY(-2px);
}

.hero-thumb img {
  height: 100%;
  object-fit: cover;
}

.hero-thumb span {
  background: linear-gradient(0deg, rgba(5, 5, 5, 0.78), rgba(5, 5, 5, 0));
  bottom: 0;
  color: var(--ivory);
  font-size: 10px;
  font-weight: 800;
  left: 0;
  line-height: 1.1;
  padding: 18px 7px 6px;
  position: absolute;
  right: 0;
  text-align: left;
}

.button {
  align-items: center;
  border: 1px solid transparent;
  cursor: pointer;
  display: inline-flex;
  font: inherit;
  font-weight: 800;
  justify-content: center;
  min-height: 50px;
  padding: 12px 22px;
}

.button.primary {
  background: var(--red);
  color: #fff;
}

.button.secondary {
  border-color: rgba(246, 241, 232, 0.52);
  color: var(--ivory);
}

.section {
  margin: 0 auto;
  max-width: var(--max);
  padding: clamp(64px, 9vw, 120px) clamp(18px, 4vw, 42px);
  scroll-margin-top: 132px;
}

.intro {
  align-items: start;
  display: grid;
  gap: 42px;
  grid-template-columns: minmax(0, 0.82fr) minmax(320px, 0.9fr);
}

.intro-copy {
  display: grid;
  gap: 28px;
}

.intro-copy p {
  color: var(--muted);
  font-size: 20px;
}

.image-row {
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr 1fr;
}

.image-row img {
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.section-heading {
  margin-bottom: 34px;
  max-width: 760px;
}

.manifesto {
  display: grid;
  gap: 28px;
}

.manifesto-line {
  color: var(--black);
  font-size: clamp(40px, 6.2vw, 86px);
  font-weight: 850;
  letter-spacing: 0;
  line-height: 1.02;
  margin: 0;
  max-width: 1120px;
}

.manifesto-line span {
  display: inline-block;
  margin-right: 0.12em;
}

.manifesto-line span:nth-child(3n),
.manifesto-line span:nth-child(7n) {
  color: var(--red);
}

.intro-strip {
  display: grid;
  gap: 14px;
  grid-template-columns: 1.2fr 0.85fr 1fr 0.9fr 1.1fr;
  margin-top: 22px;
}

.intro-strip img {
  height: clamp(180px, 22vw, 310px);
  object-fit: cover;
}

.intro-strip img:nth-child(even) {
  margin-top: 46px;
}

.intro-note {
  align-items: center;
  border-top: 1px solid var(--line);
  color: var(--muted);
  display: flex;
  gap: 18px;
  justify-content: space-between;
  padding-top: 22px;
}

.intro-note strong {
  color: var(--ink);
  font-size: 22px;
}

.why {
  max-width: none;
}

.why .section-heading,
.why .why-grid {
  margin-left: auto;
  margin-right: auto;
  max-width: var(--max);
}

.why-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.why-card {
  background: #fffaf1;
  border: 1px solid var(--line);
  display: grid;
  grid-template-rows: 210px auto auto;
  min-height: 430px;
  overflow: hidden;
}

.why-card.large {
  grid-row: span 2;
  grid-template-rows: 430px auto auto;
  min-height: 650px;
}

.why-card.dark {
  background: var(--black);
  color: var(--ivory);
}

.why-card.accent {
  background: #efe0cc;
}

.why-card img {
  height: 100%;
  object-fit: cover;
}

.why-card h3,
.why-card p {
  margin-left: 26px;
  margin-right: 26px;
}

.why-card h3 {
  margin-top: 24px;
}

.why-card p {
  color: var(--muted);
  margin-bottom: 28px;
}

.why-card.dark p {
  color: rgba(246, 241, 232, 0.74);
}

.classes {
  display: grid;
  gap: 34px;
}

.section-head-row {
  align-items: end;
  display: grid;
  gap: 28px;
  grid-template-columns: minmax(0, 1fr) auto;
}

.section-head-row h2 {
  max-width: 840px;
}

.section-head-row .button {
  margin-bottom: 18px;
}

.class-list {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.class-card {
  background: #fffaf1;
  border: 1px solid var(--line);
  display: grid;
  grid-template-rows: auto auto auto 260px;
  overflow: hidden;
  padding-top: 24px;
}

.class-meta {
  color: var(--red);
  display: flex;
  flex-wrap: wrap;
  font-size: 13px;
  font-weight: 900;
  gap: 8px;
  margin: 0 26px 26px;
  text-transform: uppercase;
}

.class-meta span {
  border: 1px solid rgba(155, 23, 23, 0.24);
  padding: 5px 9px;
}

.class-card h3,
.class-card p {
  margin-left: 26px;
  margin-right: 26px;
}

.class-card p {
  color: var(--muted);
  margin-bottom: 28px;
}

.class-card img {
  height: 260px;
  object-fit: cover;
}

.practice-grid,
.event-row,
.visit-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.practice-card,
.event-row article,
.visit-grid article {
  background: #fffaf1;
  border: 1px solid var(--line);
  overflow: hidden;
}

.practice-card.dark {
  background: var(--black);
  color: var(--ivory);
}

.practice-card.accent {
  background: #efe0cc;
}

.image-cards .practice-card {
  display: grid;
  grid-template-rows: 190px auto auto auto;
}

.image-cards .practice-card img {
  height: 190px;
  object-fit: cover;
}

.card-number {
  color: var(--red);
  display: block;
  font-size: 14px;
  font-weight: 900;
  margin: 24px 28px 18px;
}

.practice-card h3,
.practice-card p {
  margin-left: 28px;
  margin-right: 28px;
}

.practice-card p,
.event-row p,
.visit-grid p,
.split-copy p,
.beginners p,
.about p,
.contact p {
  color: var(--muted);
}

.practice-card.dark p {
  color: rgba(246, 241, 232, 0.74);
}

.practice-card p {
  margin-bottom: 28px;
}

.values {
  border-bottom: 1px solid var(--line);
  border-top: 1px solid var(--line);
  max-width: none;
}

.values .section-heading,
.values .value-list {
  margin-left: auto;
  margin-right: auto;
  max-width: var(--max);
}

.value-list {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.value-list span {
  background: var(--black);
  color: var(--ivory);
  min-height: 94px;
  padding: 18px;
}

.split {
  align-items: center;
  display: grid;
  gap: 34px;
  grid-template-columns: minmax(0, 0.78fr) minmax(220px, 0.52fr) minmax(280px, 0.64fr);
}

.feature-photo {
  margin: 0;
}

.feature-photo img {
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

.info-board {
  background: var(--black);
  color: var(--ivory);
  padding: 30px;
}

.info-board div {
  border-bottom: 1px solid rgba(246, 241, 232, 0.16);
  display: grid;
  gap: 12px;
  grid-template-columns: 90px 1fr;
  padding: 18px 0;
}

.info-board div:first-child {
  padding-top: 0;
}

.info-board div:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.info-board span {
  color: rgba(246, 241, 232, 0.74);
}

.beginners {
  background: #fffaf1;
  border: 1px solid var(--line);
  margin-bottom: clamp(40px, 7vw, 80px);
}

.beginner-grid {
  display: grid;
  gap: 40px;
  grid-template-columns: minmax(0, 0.86fr) minmax(280px, 0.7fr);
}

.beginner-grid ul {
  margin: 0;
  padding-left: 20px;
}

.beginner-grid li {
  margin-bottom: 10px;
}

.about {
  align-items: center;
  display: grid;
  gap: 42px;
  grid-template-columns: minmax(0, 0.86fr) minmax(300px, 0.72fr);
}

.about-copy p {
  font-size: 19px;
}

.about-media img {
  aspect-ratio: 5 / 6;
  object-fit: cover;
}

.visit {
  border-bottom: 1px solid var(--line);
  border-top: 1px solid var(--line);
  max-width: none;
}

.visit .section-heading,
.visit .visit-grid {
  margin-left: auto;
  margin-right: auto;
  max-width: var(--max);
}

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

.visit-grid article {
  min-height: 230px;
  padding: 26px;
}

.visit-grid article:nth-child(2) {
  background: #f1e7d7;
}

.visit-grid article:nth-child(3) {
  background: #e8e6dc;
}

.visit-grid article:nth-child(4) {
  background: var(--moss);
  color: var(--ivory);
}

.visit-grid article:nth-child(4) p {
  color: rgba(246, 241, 232, 0.78);
}

.events {
  padding-top: clamp(64px, 9vw, 120px);
}

.event-row article {
  min-height: 220px;
  padding: 28px;
}

.contact {
  align-items: start;
  background: var(--black);
  color: var(--ivory);
  display: grid;
  gap: 42px;
  grid-template-columns: minmax(0, 0.85fr) minmax(280px, 0.75fr);
  max-width: none;
  padding-left: max(18px, calc((100vw - var(--max)) / 2 + 42px));
  padding-right: max(18px, calc((100vw - var(--max)) / 2 + 42px));
}

.contact .eyebrow {
  color: #e1c0aa;
}

.contact h2 {
  max-width: 700px;
}

.contact-form {
  display: grid;
  gap: 14px;
}

.contact-form label {
  color: rgba(246, 241, 232, 0.74);
  display: grid;
  gap: 7px;
  font-size: 13px;
}

.consent {
  align-items: start;
  display: grid;
  gap: 10px;
  grid-template-columns: 18px 1fr;
}

.consent input {
  accent-color: var(--red);
  margin-top: 3px;
  min-height: auto;
  width: 18px;
}

input,
select,
textarea {
  background: rgba(246, 241, 232, 0.08);
  border: 1px solid rgba(246, 241, 232, 0.2);
  color: var(--ivory);
  font: inherit;
  min-height: 46px;
  padding: 10px 12px;
  width: 100%;
}

select option {
  color: var(--ink);
}

textarea {
  resize: vertical;
}

.form-status {
  color: #e1c0aa;
  font-size: 14px;
  margin: 0;
  min-height: 22px;
}

.is-invalid {
  border-color: #d8a08d;
}

.site-footer {
  align-items: center;
  background: #141414;
  color: rgba(246, 241, 232, 0.72);
  display: flex;
  gap: 12px;
  justify-content: space-between;
  padding: 24px clamp(18px, 4vw, 54px);
}

.site-footer strong {
  color: var(--ivory);
}

@media (max-width: 980px) {
  .split {
    grid-template-columns: 1fr;
  }

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

  .why-card.large {
    grid-row: auto;
    grid-template-rows: 300px auto auto;
    min-height: 520px;
  }

  .intro-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .intro-strip img:nth-child(even) {
    margin-top: 0;
  }

  .section-head-row {
    align-items: start;
    grid-template-columns: 1fr;
  }

  .section-head-row .button {
    justify-self: start;
    margin-bottom: 0;
  }

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

  .feature-photo img {
    aspect-ratio: 16 / 9;
  }
}

@media (max-width: 880px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .intro,
  .beginner-grid,
  .about,
  .contact {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-bottom: 72px;
    padding-top: 72px;
  }

  .hero-thumbs {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin-top: 34px;
    position: relative;
    right: auto;
    bottom: auto;
    width: min(100%, 360px);
  }

  .hero-art-mark {
    bottom: 14%;
    left: auto;
    right: 31%;
    top: 12%;
    width: 170px;
  }

  .practice-grid,
  .event-row,
  .why-grid,
  .class-list,
  .visit-grid,
  .value-list {
    grid-template-columns: 1fr;
  }

  .why-card,
  .why-card.large {
    grid-template-rows: 250px auto auto;
    min-height: auto;
  }

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

  .about-media img {
    aspect-ratio: 16 / 10;
  }
}

@media (max-width: 560px) {
  .nav {
    gap: 12px;
  }

  .nav a {
    font-size: 13px;
  }

  h1 {
    font-size: 46px;
  }

  h2 {
    font-size: 34px;
  }

  .hero-actions,
  .image-row,
  .intro-note {
    align-items: stretch;
    flex-direction: column;
    grid-template-columns: 1fr;
  }

  .manifesto-line {
    font-size: 38px;
  }

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

  .intro-strip img {
    height: 240px;
  }

  .button {
    width: 100%;
  }

  .hero-thumb {
    height: 58px;
  }

  .info-board div {
    grid-template-columns: 1fr;
  }

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