:root {
  --ink: #1c2430;
  --ink-soft: #3a4554;
  --muted: #6a7380;
  --line: #d8dde4;
  --pearl: #eef1f5;
  --pearl-deep: #e2e7ee;
  --surface: #f8f9fb;
  --white: #ffffff;
  --bronze: #c4a574;
  --bronze-deep: #9a7b4f;
  --bronze-soft: #e8d9c0;
  --slate: #4a5a6e;
  --shadow: 0 18px 48px rgba(28, 36, 48, 0.08);
  --radius: 2px;
  --font-display: "Cormorant Garamond", "Noto Serif JP", serif;
  --font-body: "Zen Kaku Gothic New", "Noto Sans JP", sans-serif;
  --max: 1120px;
  --header-h: 76px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(196, 165, 116, 0.14), transparent 55%),
    radial-gradient(ellipse 60% 40% at 95% 5%, rgba(74, 90, 110, 0.1), transparent 50%),
    linear-gradient(180deg, var(--pearl) 0%, var(--surface) 38%, var(--pearl-deep) 100%);
  background-attachment: fixed;
  line-height: 1.75;
  font-size: 16px;
  min-height: 100vh;
}

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

a {
  color: var(--bronze-deep);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 0.25s ease;
}

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: 0.02em;
  margin: 0 0 0.6em;
}

h1 { font-size: clamp(2.4rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.8rem, 3.2vw, 2.6rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.55rem); }

p { margin: 0 0 1em; color: var(--ink-soft); }

.container {
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(14px);
  background: rgba(248, 249, 251, 0.86);
  border-bottom: 1px solid rgba(216, 221, 228, 0.7);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h);
  gap: 1.5rem;
}

.brand {
  font-family: var(--font-display);
  font-size: 1.45rem;
  letter-spacing: 0.04em;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
}

.brand span {
  color: var(--bronze-deep);
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.35rem;
}

.nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.92rem;
  letter-spacing: 0.03em;
  position: relative;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 1px;
  background: var(--bronze);
  transition: width 0.3s ease;
}

.nav a:hover,
.nav a[aria-current="page"] {
  color: var(--ink);
}

.nav a:hover::after,
.nav a[aria-current="page"]::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  width: 44px;
  height: 44px;
  cursor: pointer;
  padding: 0;
  position: relative;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--ink);
  margin: 5px auto;
  transition: 0.25s ease;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.6rem;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.92rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.3s ease, color 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
}

.btn:hover {
  background: var(--bronze-deep);
  border-color: var(--bronze-deep);
  color: var(--white);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
}

.btn-ghost:hover {
  background: var(--ink);
  color: var(--white);
}

.btn-bronze {
  background: var(--bronze);
  border-color: var(--bronze);
  color: var(--ink);
}

.btn-bronze:hover {
  background: var(--bronze-deep);
  border-color: var(--bronze-deep);
  color: var(--white);
}

.site-footer {
  margin-top: 5rem;
  background: var(--ink);
  color: rgba(255, 255, 255, 0.78);
  padding: 3.5rem 0 2rem;
}

.site-footer a {
  color: var(--bronze-soft);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--white);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--white);
  margin-bottom: 0.8rem;
}

.footer-brand span { color: var(--bronze); }

.footer-col h4 {
  color: var(--bronze-soft);
  font-size: 1rem;
  margin-bottom: 1rem;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-col li { margin-bottom: 0.55rem; }

.footer-meta {
  font-size: 0.9rem;
  line-height: 1.7;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 1.4rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.55);
}

.hero-lux {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  display: grid;
  align-items: end;
  overflow: hidden;
  color: var(--white);
}

.hero-lux__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-lux__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  animation: kenburns 28s ease-in-out infinite alternate;
}

.hero-lux__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(100deg, rgba(28, 36, 48, 0.88) 0%, rgba(28, 36, 48, 0.55) 48%, rgba(28, 36, 48, 0.25) 100%),
    linear-gradient(0deg, rgba(28, 36, 48, 0.75) 0%, transparent 45%);
}

.hero-lux__content {
  position: relative;
  z-index: 1;
  padding: 5rem 0 4.5rem;
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
  max-width: 640px;
  margin-right: auto;
  margin-left: max(1.25rem, calc((100% - var(--max)) / 2));
}

.hero-lux__brand {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 5rem);
  letter-spacing: 0.06em;
  margin: 0 0 1.2rem;
  color: var(--white);
  opacity: 0;
  animation: riseFade 1s ease forwards 0.15s;
}

.hero-lux__brand em {
  font-style: normal;
  color: var(--bronze);
}

.hero-lux__line {
  width: 64px;
  height: 1px;
  background: var(--bronze);
  margin-bottom: 1.4rem;
  opacity: 0;
  animation: riseFade 0.9s ease forwards 0.35s;
}

.hero-lux__lede {
  font-size: 1.08rem;
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 2rem;
  max-width: 34ch;
  opacity: 0;
  animation: riseFade 0.9s ease forwards 0.5s;
}

.hero-lux__cta {
  opacity: 0;
  animation: riseFade 0.9s ease forwards 0.7s;
}

.section {
  padding: 5rem 0;
}

.section-tight {
  padding: 3.5rem 0;
}

.section-label {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--bronze-deep);
  margin-bottom: 0.8rem;
}

.section-head {
  max-width: 38rem;
  margin-bottom: 2.5rem;
}

.proof-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-block: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.55);
}

.proof-item {
  padding: 2rem 1.5rem;
  text-align: center;
  border-right: 1px solid var(--line);
}

.proof-item:last-child { border-right: none; }

.proof-num {
  font-family: var(--font-display);
  font-size: 2.2rem;
  color: var(--ink);
  display: block;
  margin-bottom: 0.3rem;
}

.proof-label {
  font-size: 0.85rem;
  color: var(--muted);
}

.feature-rail {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 3rem;
  align-items: center;
}

.feature-rail img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
}

.feature-list {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
}

.feature-list li {
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: 2.2rem 1fr;
  gap: 0.8rem;
  color: var(--ink-soft);
}

.feature-list strong {
  color: var(--ink);
  display: block;
  margin-bottom: 0.2rem;
}

.mark {
  font-family: var(--font-display);
  color: var(--bronze-deep);
  font-size: 1.1rem;
}

.course-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.course-tile {
  background: var(--white);
  border: 1px solid var(--line);
  overflow: hidden;
  transition: transform 0.35s ease, box-shadow 0.35s ease;
  text-decoration: none;
  color: inherit;
  display: block;
}

.course-tile:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.course-tile img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.course-tile__body {
  padding: 1.4rem 1.3rem 1.6rem;
}

.course-tile h3 {
  color: var(--ink);
  margin-bottom: 0.5rem;
  font-size: 1.35rem;
}

.course-tile p {
  font-size: 0.92rem;
  margin: 0;
}

.quote-stack {
  display: grid;
  gap: 1.5rem;
}

.quote-block {
  background: rgba(255, 255, 255, 0.7);
  border-left: 2px solid var(--bronze);
  padding: 1.6rem 1.8rem;
}

.quote-block p {
  font-size: 1.05rem;
  color: var(--ink);
  margin-bottom: 0.9rem;
}

.quote-meta {
  font-size: 0.88rem;
  color: var(--muted);
}

.cta-band {
  position: relative;
  overflow: hidden;
  padding: 4.5rem 0;
  background: var(--ink);
  color: var(--white);
}

.cta-band p { color: rgba(255, 255, 255, 0.78); }

.cta-band h2 { color: var(--white); }

.page-hero {
  padding: 4rem 0 2.5rem;
  border-bottom: 1px solid var(--line);
}

.page-hero.with-media {
  position: relative;
  min-height: 360px;
  display: flex;
  align-items: flex-end;
  color: var(--white);
  border: none;
  overflow: hidden;
}

.page-hero.with-media .bg {
  position: absolute;
  inset: 0;
}

.page-hero.with-media .bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-hero.with-media .bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(28,36,48,0.35), rgba(28,36,48,0.82));
}

.page-hero.with-media .container {
  position: relative;
  z-index: 1;
  padding-bottom: 2.5rem;
}

.page-hero.with-media p { color: rgba(255,255,255,0.85); }

.prose {
  max-width: 720px;
}

.prose h2 { margin-top: 2.2rem; }
.prose h3 { margin-top: 1.6rem; }
.prose ul, .prose ol { color: var(--ink-soft); padding-left: 1.2rem; }
.prose li { margin-bottom: 0.45rem; }

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  align-items: stretch;
}

.price-panel {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 2rem 1.6rem;
  display: flex;
  flex-direction: column;
}

.price-panel.featured {
  border-color: var(--bronze);
  box-shadow: var(--shadow);
  transform: translateY(-8px);
}

.price-name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin-bottom: 0.4rem;
}

.price-amount {
  font-family: var(--font-display);
  font-size: 2.4rem;
  color: var(--ink);
  margin: 1rem 0 0.3rem;
}

.price-amount small {
  font-size: 1rem;
  color: var(--muted);
}

.price-panel ul {
  list-style: none;
  padding: 0;
  margin: 1.4rem 0 2rem;
  flex: 1;
}

.price-panel li {
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.form {
  display: grid;
  gap: 1.1rem;
  max-width: 560px;
}

.form-row {
  display: grid;
  gap: 0.4rem;
}

.form label {
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.form input,
.form select,
.form textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1px solid var(--line);
  background: var(--white);
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--ink);
  transition: border-color 0.25s ease;
}

.form input:focus,
.form select:focus,
.form textarea:focus {
  outline: none;
  border-color: var(--bronze);
}

.form textarea { min-height: 140px; resize: vertical; }

.field-error {
  color: #9b3b3b;
  font-size: 0.85rem;
  display: none;
}

.field-error.show { display: block; }

.form-status {
  padding: 0.9rem 1rem;
  font-size: 0.95rem;
  display: none;
}

.form-status.success {
  display: block;
  background: #e8f2ea;
  color: #2a5a35;
  border: 1px solid #b7d4bc;
}

.form-status.error {
  display: block;
  background: #f8eaea;
  color: #8a3030;
  border: 1px solid #e0b8b8;
}

.contact-layout {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
}

.contact-aside {
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid var(--line);
  padding: 1.8rem;
  height: fit-content;
}

.contact-aside dt {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--bronze-deep);
  margin-top: 1.2rem;
}

.contact-aside dt:first-child { margin-top: 0; }

.contact-aside dd {
  margin: 0.35rem 0 0;
  color: var(--ink);
}

.blog-list {
  display: grid;
  gap: 2rem;
}

.blog-item {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 1.5rem;
  text-decoration: none;
  color: inherit;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--line);
  transition: opacity 0.25s ease;
}

.blog-item:hover { opacity: 0.85; }

.blog-item img {
  width: 100%;
  height: 160px;
  object-fit: cover;
}

.blog-item time {
  font-size: 0.82rem;
  color: var(--muted);
}

.faq details {
  border-bottom: 1px solid var(--line);
  padding: 1rem 0;
}

.faq summary {
  cursor: pointer;
  font-weight: 500;
  color: var(--ink);
  list-style: none;
}

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

.faq summary::before {
  content: "+";
  color: var(--bronze-deep);
  margin-right: 0.7rem;
  font-family: var(--font-display);
}

.faq details[open] summary::before { content: "–"; }

.faq details p {
  margin: 0.8rem 0 0.4rem 1.3rem;
}

.modules {
  display: grid;
  gap: 1rem;
}

.module {
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.7);
  padding: 1.2rem 1.4rem;
}

.module h3 { margin-bottom: 0.35rem; }

.instructor {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 1.5rem;
  align-items: center;
  margin: 2rem 0;
}

.instructor img {
  width: 140px;
  height: 140px;
  object-fit: cover;
  border-radius: 50%;
  border: 2px solid var(--bronze-soft);
}

.table-wrap { overflow-x: auto; margin: 1.5rem 0; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

th, td {
  border: 1px solid var(--line);
  padding: 0.75rem 0.9rem;
  text-align: left;
  vertical-align: top;
}

th {
  background: rgba(196, 165, 116, 0.15);
  color: var(--ink);
  font-weight: 500;
}

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: rgba(28, 36, 48, 0.96);
  color: rgba(255, 255, 255, 0.88);
  padding: 1.3rem 0;
  transform: translateY(110%);
  transition: transform 0.4s ease;
  border-top: 1px solid rgba(196, 165, 116, 0.35);
}

.cookie-banner.show { transform: translateY(0); }

.cookie-inner {
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  align-items: center;
  justify-content: space-between;
}

.cookie-inner p {
  margin: 0;
  flex: 1 1 280px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.92rem;
}

.cookie-inner a { color: var(--bronze-soft); }

.cookie-actions {
  display: flex;
  gap: 0.7rem;
  flex-wrap: wrap;
}

.cookie-actions .btn {
  padding: 0.65rem 1.2rem;
  font-size: 0.85rem;
}

.inline-error {
  background: #f8eaea;
  color: #8a3030;
  border: 1px solid #e0b8b8;
  padding: 0.75rem 1rem;
  margin: 0.5rem 0;
  font-size: 0.9rem;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.case-study {
  background: rgba(255,255,255,0.7);
  border: 1px solid var(--line);
  padding: 2rem;
  margin-bottom: 1.5rem;
}

.stars {
  color: var(--bronze-deep);
  letter-spacing: 0.1em;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
}

.not-found {
  min-height: 60vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 4rem 1.25rem;
}

.not-found .code {
  font-family: var(--font-display);
  font-size: 6rem;
  color: var(--bronze);
  line-height: 1;
  margin-bottom: 0.5rem;
}

@keyframes riseFade {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: none; }
}

@keyframes kenburns {
  from { transform: scale(1); }
  to { transform: scale(1.08); }
}

@media (max-width: 960px) {
  .proof-strip { grid-template-columns: repeat(2, 1fr); }
  .proof-item:nth-child(2) { border-right: none; }
  .proof-item:nth-child(1),
  .proof-item:nth-child(2) { border-bottom: 1px solid var(--line); }
  .feature-rail,
  .contact-layout,
  .two-col,
  .blog-item,
  .pricing-grid,
  .course-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .price-panel.featured { transform: none; }
  .instructor { grid-template-columns: 100px 1fr; }
  .nav-toggle { display: block; }
  .nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: rgba(248, 249, 251, 0.98);
    border-bottom: 1px solid var(--line);
    padding: 1rem 1.25rem 1.4rem;
    gap: 0.2rem;
  }
  .nav.open { display: flex; }
  .nav a {
    padding: 0.75rem 0.2rem;
    border-bottom: 1px solid var(--line);
  }
  .header-inner { position: relative; }
}

@media (max-width: 640px) {
  .proof-strip { grid-template-columns: 1fr; }
  .proof-item { border-right: none; border-bottom: 1px solid var(--line); }
  .proof-item:last-child { border-bottom: none; }
  .hero-lux__content { padding: 3.5rem 0 3rem; }
  .blog-item { grid-template-columns: 1fr; }
}