:root {
  --ink: #0f1c2e;
  --ink-mid: #1c2d42;
  --ink-soft: #31455c;
  --gold: #b08d57;
  --gold-soft: #d4bc8e;
  --teal: #3a6b73;
  --teal-deep: #2a5258;
  --paper: #f3f4f6;
  --paper-warm: #eef0f2;
  --line: rgba(15, 28, 46, 0.12);
  --text: #1a2634;
  --muted: #5c6b7a;
  --white: #ffffff;
  --danger: #8b3a3a;
  --ok: #2f6b4f;
  --shadow: 0 18px 40px rgba(15, 28, 46, 0.08);
  --radius: 2px;
  --header-h: 4.5rem;
  --font-display: "Cormorant Garamond", "Noto Serif JP", serif;
  --font-body: "Noto Sans JP", "Hiragino Sans", 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(--text);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(176, 141, 87, 0.12), transparent 55%),
    radial-gradient(900px 500px at 100% 0%, rgba(58, 107, 115, 0.1), transparent 50%),
    linear-gradient(180deg, #f7f8fa 0%, var(--paper) 40%, #eceff2 100%);
  line-height: 1.75;
  min-height: 100vh;
}

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

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

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

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

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;
}

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

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(14px);
  background: rgba(243, 244, 246, 0.86);
  border-bottom: 1px solid var(--line);
}

.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: 1.4rem;
  height: 1.4rem;
  border: 1.5px solid var(--gold);
  border-radius: 50%;
  position: relative;
}

.brand-mark::after {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gold-soft), var(--teal));
  opacity: 0.85;
}

.brand-text {
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: 0.04em;
}

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

.site-nav a {
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 0.86rem;
  letter-spacing: 0.04em;
}

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

.nav-cta {
  padding: 0.45rem 0.95rem;
  border: 1px solid var(--gold);
  color: var(--ink) !important;
  background: linear-gradient(120deg, rgba(176, 141, 87, 0.14), transparent);
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--line);
  width: 2.6rem;
  height: 2.6rem;
  padding: 0;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle-bar {
  display: block;
  width: 1.1rem;
  height: 1.5px;
  background: var(--ink);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.85rem 1.45rem;
  border: 1px solid transparent;
  text-decoration: none;
  font-family: var(--font-body);
  font-size: 0.92rem;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: transform 0.3s var(--ease), background 0.3s var(--ease), color 0.3s var(--ease), border-color 0.3s var(--ease);
}

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

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

.btn-primary:hover {
  background: var(--ink-mid);
  color: var(--gold-soft);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: rgba(15, 28, 46, 0.28);
}

.btn-ghost:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.btn-gold {
  background: linear-gradient(120deg, var(--gold), #9a7544);
  color: #fff;
  border-color: transparent;
}

.btn-gold:hover {
  color: #fff;
  filter: brightness(1.05);
}

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

.hero-full::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(15, 28, 46, 0.25) 0%, rgba(15, 28, 46, 0.72) 70%, rgba(15, 28, 46, 0.92) 100%),
    var(--hero-image) center / cover no-repeat;
  transform: scale(1.04);
  animation: heroDrift 18s var(--ease) infinite alternate;
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(1120px, calc(100% - 2.5rem));
  margin: 0 auto 4.5rem;
  max-width: 40rem;
  animation: riseIn 1s var(--ease) both;
}

.hero-brand {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 5.2rem);
  line-height: 1.05;
  margin: 0 0 1rem;
  letter-spacing: 0.03em;
  color: var(--white);
}

.hero-lead {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 1.8rem;
  max-width: 32rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.page-hero {
  padding: 4.5rem 0 3rem;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(176, 141, 87, 0.08), transparent 45%),
    linear-gradient(180deg, rgba(58, 107, 115, 0.06), transparent);
}

.page-hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  margin: 0 0 0.8rem;
}

.page-hero p {
  color: var(--muted);
  max-width: 38rem;
  margin: 0;
}

.eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.8rem;
}

/* Sections */
.section {
  padding: 5rem 0;
}

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

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  margin: 0 0 0.75rem;
}

.section-lead {
  color: var(--muted);
  max-width: 36rem;
  margin-bottom: 2.5rem;
}

.split {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 3rem;
  align-items: center;
}

.media-frame {
  position: relative;
  overflow: hidden;
  min-height: 22rem;
}

.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 22rem;
  transition: transform 1.2s var(--ease);
}

.media-frame:hover img {
  transform: scale(1.04);
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 35%;
  background: linear-gradient(transparent, rgba(15, 28, 46, 0.35));
  pointer-events: none;
}

/* Proof / metrics */
.proof-band {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  padding: 2.5rem 0;
  border-block: 1px solid var(--line);
}

.proof-item strong {
  display: block;
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.1;
}

.proof-item span {
  color: var(--muted);
  font-size: 0.92rem;
}

/* Feature list without cards in hero - cards only for interaction */
.feature-rail {
  display: grid;
  gap: 1.75rem;
}

.feature-rail article {
  padding-block: 1.2rem;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 4rem 1fr;
  gap: 1rem;
  align-items: start;
}

.feature-rail article:last-child {
  border-bottom: 1px solid var(--line);
}

.feature-num {
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--gold);
}

/* Course / blog grids - interactive containers */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.item-card {
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid var(--line);
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease), box-shadow 0.35s var(--ease);
  overflow: hidden;
}

.item-card:hover {
  transform: translateY(-4px);
  border-color: rgba(176, 141, 87, 0.45);
  box-shadow: var(--shadow);
  color: inherit;
}

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

.item-card .card-body {
  padding: 1.25rem 1.3rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1;
}

.item-card h3 {
  margin: 0;
  font-size: 1.25rem;
}

.item-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.tag {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--teal);
  text-transform: uppercase;
}

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

.quote {
  padding: 1.5rem 0;
  border-left: 2px solid var(--gold);
  padding-left: 1.4rem;
}

.quote p {
  font-family: var(--font-display);
  font-size: 1.35rem;
  line-height: 1.55;
  margin-bottom: 0.8rem;
}

.quote footer {
  color: var(--muted);
  font-size: 0.9rem;
}

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

.price-tier {
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--line);
  padding: 2rem 1.6rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.price-tier.featured {
  border-color: var(--gold);
  background:
    linear-gradient(180deg, rgba(176, 141, 87, 0.12), rgba(255, 255, 255, 0.75));
  transform: translateY(-8px);
}

.price-tier h3 {
  margin: 0;
  font-size: 1.7rem;
}

.price-amount {
  font-family: var(--font-display);
  font-size: 2.2rem;
  color: var(--ink);
}

.price-tier ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--muted);
  flex: 1;
}

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

/* Forms */
.form {
  display: grid;
  gap: 1.1rem;
}

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

.form-row label {
  font-size: 0.88rem;
  letter-spacing: 0.04em;
}

.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.85);
  padding: 0.85rem 0.95rem;
  font: inherit;
  color: var(--text);
  border-radius: var(--radius);
}

.form-row textarea {
  min-height: 9rem;
  resize: vertical;
}

.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: 2px solid rgba(176, 141, 87, 0.45);
  border-color: var(--gold);
}

.field-error {
  color: var(--danger);
  font-size: 0.82rem;
  min-height: 1.1em;
}

.form-status {
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  display: none;
}

.form-status.is-visible {
  display: block;
}

.form-status.is-ok {
  border-color: rgba(47, 107, 79, 0.35);
  background: rgba(47, 107, 79, 0.08);
  color: var(--ok);
}

.form-status.is-err {
  border-color: rgba(139, 58, 58, 0.35);
  background: rgba(139, 58, 58, 0.08);
  color: var(--danger);
}

.contact-panel {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2.5rem;
}

.contact-meta p {
  margin-bottom: 0.6rem;
}

/* Legal */
.legal-content h2 {
  margin-top: 2.2rem;
  font-size: 1.45rem;
}

.legal-content table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin: 1.2rem 0 1.8rem;
}

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

.legal-content th {
  background: rgba(15, 28, 46, 0.04);
}

/* FAQ */
.faq details {
  border-top: 1px solid var(--line);
  padding: 1rem 0;
}

.faq details:last-child {
  border-bottom: 1px solid var(--line);
}

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

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

.faq details p {
  color: var(--muted);
  margin: 0.7rem 0 0.2rem;
}

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

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

.module h3 {
  margin: 0 0 0.35rem;
  font-size: 1.2rem;
}

.module p {
  margin: 0;
  color: var(--muted);
}

/* Instructor */
.instructor {
  display: grid;
  grid-template-columns: 8rem 1fr;
  gap: 1.4rem;
  align-items: center;
  padding: 1.5rem 0;
  border-top: 1px solid var(--line);
}

.instructor img {
  width: 8rem;
  height: 8rem;
  object-fit: cover;
  border-radius: 50%;
  border: 2px solid var(--gold-soft);
}

/* Footer */
.site-footer {
  margin-top: 3rem;
  background: var(--ink);
  color: rgba(255, 255, 255, 0.78);
  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: 2rem;
}

.footer-name {
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: #fff;
  margin-bottom: 0.5rem;
}

.footer-tag {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
}

.footer-heading {
  color: var(--gold-soft);
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  text-transform: uppercase;
  margin-bottom: 0.8rem;
}

.footer-col a {
  display: block;
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  margin-bottom: 0.45rem;
  font-size: 0.92rem;
}

.footer-col a:hover {
  color: var(--gold-soft);
}

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

.footer-contact a {
  display: inline;
  color: rgba(255, 255, 255, 0.75);
}

.footer-bottom {
  width: min(1120px, calc(100% - 2.5rem));
  margin: 2.5rem auto 0;
  padding-top: 1.2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.5);
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  z-index: 60;
  max-width: 42rem;
  margin-inline: auto;
  background: rgba(15, 28, 46, 0.96);
  color: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(176, 141, 87, 0.45);
  padding: 1.25rem 1.35rem;
  display: none;
  gap: 1rem;
  box-shadow: var(--shadow);
}

.cookie-banner.is-visible {
  display: grid;
  animation: riseIn 0.45s var(--ease);
}

.cookie-banner p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.6;
}

.cookie-banner a {
  color: var(--gold-soft);
}

.cookie-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.cookie-actions .btn {
  padding: 0.65rem 1.1rem;
  font-size: 0.85rem;
}

.inline-error {
  margin: 0.75rem 0;
  padding: 0.75rem 1rem;
  border: 1px solid rgba(139, 58, 58, 0.35);
  background: rgba(139, 58, 58, 0.08);
  color: var(--danger);
  font-size: 0.9rem;
}

/* Case studies */
.case {
  padding: 2rem 0;
  border-top: 1px solid var(--line);
}

.case h3 {
  margin-top: 0;
}

.rating {
  letter-spacing: 0.12em;
  color: var(--gold);
  font-size: 0.85rem;
}

/* 404 */
.notfound {
  min-height: 60vh;
  display: grid;
  place-content: center;
  text-align: center;
  padding: 4rem 1.25rem;
}

.notfound h1 {
  font-size: clamp(3rem, 10vw, 6rem);
  margin: 0;
}

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

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

@keyframes riseIn {
  from {
    opacity: 0;
    transform: translateY(22px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes heroDrift {
  from {
    transform: scale(1.04) translate3d(0, 0, 0);
  }
  to {
    transform: scale(1.08) translate3d(-1.5%, -1%, 0);
  }
}

@media (max-width: 960px) {
  .card-grid,
  .price-grid,
  .proof-band,
  .footer-grid,
  .split,
  .contact-panel {
    grid-template-columns: 1fr;
  }

  .price-tier.featured {
    transform: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(247, 248, 250, 0.98);
    border-bottom: 1px solid var(--line);
    padding: 1rem 1.25rem 1.4rem;
    flex-direction: column;
    align-items: flex-start;
    display: none;
  }

  .site-nav[data-open="true"] {
    display: flex;
  }

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

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}