:root {
  --ink: #1c1e22;
  --ink-soft: #3a3f47;
  --mist: #f3f4f6;
  --paper: #ffffff;
  --line: #d5d8de;
  --brass: #9a7b4f;
  --brass-deep: #7a6040;
  --teal: #2f4a4e;
  --teal-soft: #3d5f64;
  --error: #8b3a3a;
  --success: #2f5d45;
  --shadow: 0 18px 40px rgba(28, 30, 34, 0.08);
  --radius: 2px;
  --header-h: 4.5rem;
  --font-display: "Shippori Mincho", "Noto Serif JP", serif;
  --font-body: "Zen Kaku Gothic New", "Noto Sans JP", sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(154, 123, 79, 0.08), transparent 60%),
    radial-gradient(900px 500px at 100% 0%, rgba(47, 74, 78, 0.07), transparent 55%),
    linear-gradient(180deg, #eef0f3 0%, var(--mist) 40%, #e9ebef 100%);
  line-height: 1.75;
  min-height: 100vh;
}

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

a {
  color: var(--teal);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
  transition: color 0.25s var(--ease);
}

a:hover {
  color: var(--brass-deep);
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.35;
  letter-spacing: 0.02em;
  margin: 0 0 0.75rem;
}

p {
  margin: 0 0 1rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.wrap {
  width: min(1120px, calc(100% - 2.5rem));
  margin-inline: auto;
}

.wrap-narrow {
  width: min(760px, calc(100% - 2.5rem));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(12px);
  background: rgba(243, 244, 246, 0.88);
  border-bottom: 1px solid rgba(213, 216, 222, 0.8);
}

.header-inner {
  width: min(1120px, calc(100% - 2.5rem));
  margin-inline: auto;
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  color: var(--ink);
}

.brand-mark {
  width: 0.85rem;
  height: 0.85rem;
  background: linear-gradient(135deg, var(--brass), var(--teal));
  transform: rotate(45deg);
}

.brand-text {
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.04em;
}

.site-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.35rem 1.1rem;
}

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

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.2rem;
  width: 100%;
  height: 1px;
  background: var(--brass);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease);
}

.site-nav a:hover::after,
.site-nav a[aria-current="page"]::after {
  transform: scaleX(1);
}

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

.nav-cta {
  padding: 0.45rem 0.95rem;
  border: 1px solid var(--ink);
  color: var(--ink) !important;
}

.nav-cta::after {
  display: none !important;
}

.nav-cta:hover {
  background: var(--ink);
  color: var(--paper) !important;
}

.nav-toggle {
  display: none;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid var(--line);
  background: var(--paper);
  cursor: pointer;
  position: relative;
}

.nav-toggle-bar,
.nav-toggle-bar::before,
.nav-toggle-bar::after {
  content: "";
  position: absolute;
  left: 0.55rem;
  right: 0.55rem;
  height: 1px;
  background: var(--ink);
  transition: transform 0.3s var(--ease), opacity 0.3s;
}

.nav-toggle-bar {
  top: 50%;
}

.nav-toggle-bar::before {
  top: -6px;
}

.nav-toggle-bar::after {
  top: 6px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar::before {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar::after {
  transform: translateY(-6px) rotate(-45deg);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.4rem;
  border: 1px solid transparent;
  font-family: var(--font-body);
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.3s var(--ease), color 0.3s var(--ease), border-color 0.3s var(--ease), transform 0.3s var(--ease);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--ink);
  color: var(--paper);
}

.btn-primary:hover {
  background: var(--teal);
  color: var(--paper);
}

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

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

.btn-brass {
  background: var(--brass);
  color: var(--paper);
}

.btn-brass:hover {
  background: var(--brass-deep);
  color: var(--paper);
}

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

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

.hero-lux__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.55) saturate(0.85);
  animation: kenburns 22s ease-in-out infinite alternate;
}

.hero-lux__overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(120deg, rgba(28, 30, 34, 0.78) 0%, rgba(28, 30, 34, 0.35) 55%, rgba(47, 74, 78, 0.45) 100%);
  z-index: 1;
}

.hero-lux__content {
  position: relative;
  z-index: 2;
  width: min(1120px, calc(100% - 2.5rem));
  margin: 0 auto 4.5rem;
  max-width: 38rem;
  animation: rise 1s var(--ease) both;
}

.hero-lux__brand {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  letter-spacing: 0.08em;
  margin-bottom: 1.2rem;
  color: #f0ebe3;
}

.hero-lux__lead {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 1.6rem;
}

.page-hero {
  padding: 4.5rem 0 3rem;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(154, 123, 79, 0.06), transparent 70%);
}

.page-hero h1 {
  font-size: clamp(1.9rem, 4vw, 2.8rem);
}

.page-hero p {
  max-width: 40rem;
  color: var(--ink-soft);
}

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

/* Sections */
.section {
  padding: 4.5rem 0;
}

.section-alt {
  background: rgba(255, 255, 255, 0.55);
  border-block: 1px solid var(--line);
}

.section-head {
  margin-bottom: 2.2rem;
  max-width: 36rem;
}

.section-head h2 {
  font-size: clamp(1.55rem, 3vw, 2.1rem);
}

.section-head p {
  color: var(--ink-soft);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.panel {
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 1.5rem;
  transition: border-color 0.3s var(--ease), transform 0.35s var(--ease);
}

.panel:hover {
  border-color: var(--brass);
  transform: translateY(-3px);
}

.panel h3 {
  font-size: 1.2rem;
}

.panel p:last-child {
  margin-bottom: 0;
}

.feature-num {
  font-family: var(--font-display);
  color: var(--brass);
  font-size: 1.4rem;
  margin-bottom: 0.6rem;
}

.media-card {
  background: var(--paper);
  border: 1px solid var(--line);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: transform 0.35s var(--ease), border-color 0.3s;
}

.media-card:hover {
  transform: translateY(-4px);
  border-color: var(--brass);
}

.media-card img {
  aspect-ratio: 16 / 10;
  object-fit: cover;
  width: 100%;
}

.media-card__body {
  padding: 1.25rem 1.35rem 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.media-card__body h3 {
  font-size: 1.15rem;
}

.media-card__body p {
  color: var(--ink-soft);
  flex: 1;
}

.media-card__meta {
  font-size: 0.85rem;
  color: var(--brass-deep);
  margin-bottom: 0.5rem;
}

.split {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 2.5rem;
  align-items: center;
}

.split img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--line);
}

.quote-block {
  border-left: 2px solid var(--brass);
  padding: 0.2rem 0 0.2rem 1.25rem;
  margin: 0;
}

.quote-block p {
  font-family: var(--font-display);
  font-size: 1.2rem;
  line-height: 1.7;
}

.quote-block cite {
  display: block;
  margin-top: 0.9rem;
  font-style: normal;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.stat {
  padding: 1.2rem;
  background: var(--paper);
  border: 1px solid var(--line);
}

.stat strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 500;
  color: var(--teal);
}

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

.cta-band {
  padding: 3.5rem 0;
  background: linear-gradient(120deg, var(--ink) 0%, var(--teal) 100%);
  color: var(--paper);
}

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

.cta-band p {
  color: rgba(255, 255, 255, 0.85);
  max-width: 34rem;
}

.cta-band .btn-primary {
  background: var(--brass);
}

.cta-band .btn-primary:hover {
  background: var(--brass-deep);
}

/* Pricing */
.price-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  align-items: stretch;
}

.price-card {
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 1.8rem 1.5rem;
  display: flex;
  flex-direction: column;
}

.price-card.featured {
  border-color: var(--brass);
  box-shadow: var(--shadow);
  position: relative;
}

.price-card.featured::before {
  content: "多く選ばれています";
  position: absolute;
  top: 0;
  right: 0;
  background: var(--brass);
  color: var(--paper);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  padding: 0.35rem 0.7rem;
}

.price-card h3 {
  font-size: 1.35rem;
}

.price-amount {
  font-family: var(--font-display);
  font-size: 2rem;
  margin: 0.8rem 0 1rem;
}

.price-amount small {
  font-size: 0.95rem;
  color: var(--ink-soft);
}

.price-card ul {
  margin: 0 0 1.5rem;
  padding-left: 1.1rem;
  color: var(--ink-soft);
  flex: 1;
}

.price-card li {
  margin-bottom: 0.45rem;
}

.note {
  font-size: 0.88rem;
  color: var(--ink-soft);
  margin-top: 1.5rem;
}

/* Reviews */
.review-list {
  display: grid;
  gap: 1.25rem;
}

.review {
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 1.4rem 1.5rem;
}

.review .stars {
  color: var(--brass);
  letter-spacing: 0.12em;
  margin-bottom: 0.6rem;
  font-size: 0.9rem;
}

.review footer {
  margin-top: 0.9rem;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.case-study {
  padding: 1.8rem;
  background: var(--paper);
  border: 1px solid var(--line);
}

.case-study h3 {
  margin-bottom: 0.8rem;
}

/* Forms */
.form {
  display: grid;
  gap: 1.1rem;
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 1.6rem;
}

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

.form-row label {
  font-size: 0.92rem;
}

.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--line);
  background: var(--mist);
  font: inherit;
  color: var(--ink);
  transition: border-color 0.25s, background 0.25s;
}

.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--brass);
  background: var(--paper);
}

.field-error {
  color: var(--error);
  font-size: 0.85rem;
  min-height: 1.2em;
}

.form-status {
  padding: 0.85rem 1rem;
  border: 1px solid var(--line);
  display: none;
}

.form-status.is-success {
  display: block;
  border-color: var(--success);
  color: var(--success);
  background: rgba(47, 93, 69, 0.08);
}

.form-status.is-error {
  display: block;
  border-color: var(--error);
  color: var(--error);
  background: rgba(139, 58, 58, 0.08);
}

.contact-aside {
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 1.5rem;
}

.contact-aside dt {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brass-deep);
  margin-top: 1rem;
}

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

.contact-aside dd {
  margin: 0.35rem 0 0;
}

/* Legal */
.legal {
  padding: 3.5rem 0 4.5rem;
}

.legal h1 {
  margin-bottom: 1.5rem;
}

.legal h2 {
  font-size: 1.25rem;
  margin-top: 2rem;
}

.legal table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.2rem 0;
  font-size: 0.92rem;
}

.legal th,
.legal td {
  border: 1px solid var(--line);
  padding: 0.7rem 0.8rem;
  text-align: left;
  vertical-align: top;
  background: var(--paper);
}

.legal th {
  background: rgba(154, 123, 79, 0.1);
  font-weight: 500;
}

/* Course detail */
.module-list {
  display: grid;
  gap: 0.9rem;
}

.module {
  border: 1px solid var(--line);
  background: var(--paper);
  padding: 1.1rem 1.25rem;
}

.module h3 {
  font-size: 1.05rem;
  margin-bottom: 0.35rem;
}

.faq details {
  border: 1px solid var(--line);
  background: var(--paper);
  padding: 0.95rem 1.15rem;
  margin-bottom: 0.7rem;
}

.faq summary {
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 1.05rem;
}

.faq details[open] summary {
  margin-bottom: 0.6rem;
  color: var(--teal);
}

.instructor {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 1.25rem;
  align-items: center;
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 1.25rem;
}

.instructor img {
  width: 140px;
  height: 140px;
  object-fit: cover;
  border-radius: 50%;
}

/* Blog article */
.article {
  padding: 3.5rem 0 4.5rem;
}

.article-meta {
  color: var(--ink-soft);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.article-cover {
  margin: 0 0 2rem;
  border: 1px solid var(--line);
}

.article-cover img {
  width: 100%;
  aspect-ratio: 21 / 9;
  object-fit: cover;
}

.article-body h2 {
  font-size: 1.35rem;
  margin-top: 2rem;
}

.article-body ul {
  padding-left: 1.2rem;
  color: var(--ink-soft);
}

/* 404 */
.error-page {
  min-height: calc(100vh - var(--header-h) - 12rem);
  display: grid;
  place-items: center;
  text-align: center;
  padding: 4rem 1.25rem;
}

.error-page h1 {
  font-size: clamp(3rem, 10vw, 5.5rem);
  color: var(--brass);
  margin-bottom: 0.4rem;
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  z-index: 60;
  max-width: 420px;
  margin-left: auto;
  background: var(--paper);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  padding: 1.15rem 1.2rem;
  transform: translateY(120%);
  opacity: 0;
  transition: transform 0.45s var(--ease), opacity 0.45s var(--ease);
}

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

.cookie-banner p {
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin-bottom: 0.95rem;
}

.cookie-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.cookie-actions .btn {
  padding: 0.55rem 0.95rem;
  font-size: 0.88rem;
}

.inline-error {
  margin: 0.75rem auto;
  width: min(1120px, calc(100% - 2.5rem));
  padding: 0.75rem 1rem;
  border: 1px solid var(--error);
  color: var(--error);
  background: rgba(139, 58, 58, 0.08);
}

/* Footer */
.site-footer {
  margin-top: 2rem;
  background: var(--ink);
  color: rgba(255, 255, 255, 0.82);
  padding: 3.5rem 0 1.5rem;
}

.footer-grid {
  width: min(1120px, calc(100% - 2.5rem));
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.3fr;
  gap: 1.5rem;
}

.footer-name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: #f0ebe3;
  margin-bottom: 0.5rem;
}

.footer-tag {
  font-size: 0.9rem;
  max-width: 18rem;
}

.footer-label {
  color: var(--brass);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 0.7rem;
}

.site-footer a {
  color: rgba(255, 255, 255, 0.78);
  text-decoration: none;
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.92rem;
}

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

.footer-contact p {
  margin-bottom: 0.45rem;
  font-size: 0.9rem;
}

.footer-bottom {
  width: min(1120px, calc(100% - 2.5rem));
  margin: 2.2rem auto 0;
  padding-top: 1.2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.55);
}

/* Reveal animation */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

[data-reveal].is-in {
  opacity: 1;
  transform: none;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes kenburns {
  from {
    transform: scale(1);
  }
  to {
    transform: scale(1.06);
  }
}

@media (max-width: 960px) {
  .grid-3,
  .price-grid,
  .stat-row,
  .footer-grid,
  .split {
    grid-template-columns: 1fr 1fr;
  }

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

@media (max-width: 780px) {
  .nav-toggle {
    display: inline-block;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: rgba(243, 244, 246, 0.98);
    border-bottom: 1px solid var(--line);
    padding: 1rem 1.25rem 1.25rem;
    flex-direction: column;
    align-items: flex-start;
  }

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

  .grid-3,
  .grid-2,
  .price-grid,
  .stat-row,
  .split,
  .footer-grid,
  .instructor {
    grid-template-columns: 1fr;
  }

  .hero-lux {
    min-height: 78vh;
  }

  .hero-lux__content {
    margin-bottom: 3rem;
  }

  .cookie-banner {
    left: 0.75rem;
    right: 0.75rem;
    max-width: none;
  }
}