:root {
  /* ── Colour palette ──────────────────────────────────────────── */
  --bg:          #f5f0ea;
  --surface:     rgba(255, 252, 248, 0.9);
  --surface-alt: #eee6db;
  --ink:         #1a1410;
  --muted:       #6e5e52;
  --border:      rgba(26, 20, 16, 0.1);

  /* Accent — deep vermilion (torii gate red) */
  --accent:      #c0392b;
  --accent-dark: #962d22;
  --accent-soft: rgba(192, 57, 43, 0.1);
  --accent-glow: rgba(192, 57, 43, 0.22);

  /* Secondary — ink navy */
  --ink-navy:    #1d2d44;

  /* ── Radii ───────────────────────────────────────────────────── */
  --radius-sm:  4px;
  --radius:     10px;
  --radius-lg:  20px;
  --radius-xl:  32px;

  /* ── Typography ──────────────────────────────────────────────── */
  --font-body: 'Inter', system-ui, sans-serif;
  --font-head: 'Playfair Display', Georgia, serif;
  --max-w:      1140px;

  /* ── Modular type scale — Golden Ratio ×1.618 ───────────────── */
  --text-xs:      max(0.8125rem, 0.618rem);
  --text-sm:      max(0.9375rem, 0.764rem);
  --text-base:    1rem;
  --text-md:      1.236rem;
  --text-lg:      1.618rem;
  --text-xl:      2.058rem;
  --text-2xl:     2.618rem;
  --text-3xl:     4.236rem;
  --text-display: 6.854rem;
  --leading-tight:  1.1;
  --leading-snug:   1.25;
  --leading-normal: 1.6;
  --leading-loose:  1.8;

  /* ── Fibonacci spacing (8px base) ───────────────────────────── */
  --space-1: 8px;
  --space-2: 13px;
  --space-3: 21px;
  --space-4: 34px;
  --space-5: 55px;
  --space-6: 89px;
  --space-7: 144px;

  /* ── Shadows ─────────────────────────────────────────────────── */
  --shadow-sm:  0 2px 8px rgba(26,20,16,.07);
  --shadow:     0 8px 32px rgba(26,20,16,.1);
  --shadow-lg:  0 20px 60px rgba(26,20,16,.16);

  /* ── Semantic status tokens ──────────────────────────────────── */
  --success: #1a7f5a; --success-bg: #e6f5ef;
  --warning: #b45309; --warning-bg: #fef3c7;
  --error:   #b91c1c; --error-bg:   #fee2e2;

  /* ── Motion tokens (§14.1) ───────────────────────────────────── */
  --duration-fast: 150ms;
  --duration-base: 250ms;
  --duration-slow: 500ms;
  --ease-default: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-bounce:  cubic-bezier(0.34, 1.56, 0.64, 1);

  /* ── Icon tokens (§10.4) ─────────────────────────────────────── */
  --icon-sm:     16px;
  --icon-md:     20px;
  --icon-lg:     24px;
  --icon-stroke: 1.5;
}

/* ── Reset ───────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  line-height: var(--leading-normal);
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

/* ── Focus & skip-nav (§9.7 / §9.5) ──────────────────────────── */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}
:focus:not(:focus-visible) { outline: none; }

.skip-nav {
  position: absolute;
  top: -100%;
  left: var(--space-3);
  padding: 10px 20px;
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: var(--text-sm);
  z-index: 9999;
  transition: top var(--duration-fast) var(--ease-default);
}
.skip-nav:focus { top: var(--space-2); }

/* ── SVG icon helper (§10.4) ──────────────────────────────────── */
.icon {
  display: inline-block;
  width:  var(--icon-md);
  height: var(--icon-md);
  stroke-width: var(--icon-stroke);
  stroke: currentColor;
  fill: none;
  vertical-align: -0.125em;
  flex-shrink: 0;
}
.icon-sm { width: var(--icon-sm); height: var(--icon-sm); }
.icon-lg { width: var(--icon-lg); height: var(--icon-lg); }

/* ── Reveal animation ─────────────────────────────────────────── */
[data-reveal], .reveal {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity var(--duration-slow) var(--ease-default),
    transform var(--duration-slow) var(--ease-default);
}
[data-reveal].is-visible, .reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ── Layout ───────────────────────────────────────────────────── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

/* ── Header ───────────────────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-4);
  height: 64px;
  background: rgba(245, 240, 234, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background var(--duration-base) var(--ease-default);
}
.site-header.scrolled {
  background: rgba(245, 240, 234, 0.96);
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-family: var(--font-head);
  font-weight: 700;
}
.brand-jp {
  font-size: var(--text-lg);
  color: var(--accent);
}
.brand-en {
  font-size: var(--text-md);
  color: var(--ink);
  letter-spacing: .06em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}
.site-nav a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--muted);
  padding: 0 var(--space-2);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  border-radius: var(--radius-sm);
  transition: color var(--duration-fast) var(--ease-default),
              background var(--duration-fast) var(--ease-default);
  letter-spacing: .02em;
}
.site-nav a:hover, .site-nav a.is-active {
  color: var(--accent);
  background: var(--accent-soft);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
  min-height: 44px;
  min-width: 44px;
  justify-content: center;
  align-items: center;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  display: block;
  transition: transform var(--duration-fast) var(--ease-default),
              opacity var(--duration-fast) var(--ease-default);
}

/* ── Buttons ──────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: .04em;
  cursor: pointer;
  border: 1.5px solid transparent;
  text-decoration: none;
  transition:
    background var(--duration-fast) var(--ease-default),
    color var(--duration-fast) var(--ease-default),
    transform var(--duration-fast) var(--ease-bounce),
    box-shadow var(--duration-fast) var(--ease-default),
    border-color var(--duration-fast) var(--ease-default);
}
.btn:hover  { transform: translateY(-2px); }
.btn:active { transform: translateY(0); transition-duration: 60ms; }

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  box-shadow: 0 6px 24px var(--accent-glow);
}

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

/* ── Eyebrow & section labels ─────────────────────────────────── */
.eyebrow {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-2);
}
.section-label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-2);
}

/* ── Hero ─────────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 64px; /* header offset */
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('https://images.unsplash.com/photo-1545569341-9eb8b30979d9?w=1600&q=80');
  background-size: cover;
  background-position: center 30%;
  filter: brightness(.45) saturate(.9);
  z-index: 0;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--space-7) var(--space-4) var(--space-6);
  width: 100%;
}

/* §3.6 — Type as image */
.hero-title {
  font-family: var(--font-head);
  font-size: clamp(var(--text-2xl), 9vw, var(--text-display));
  line-height: .92;
  letter-spacing: -.02em;
  margin-bottom: var(--space-4);
  color: #fff;
  display: flex;
  flex-direction: column;
}
.hero-title-em {
  font-style: italic;
  color: rgba(255, 255, 255, .55);
  font-size: .7em;
  font-weight: 500;
  letter-spacing: .04em;
}
.hero-title-main {
  font-weight: 900;
  letter-spacing: -.04em;
}

.hero-sub {
  max-width: 56ch;
  color: rgba(255, 255, 255, .78);
  font-size: var(--text-md);
  line-height: var(--leading-loose);
  margin-bottom: var(--space-4);
}

.hero-actions {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-bottom: var(--space-5);
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  list-style: none;
  flex-wrap: wrap;
}
.hero-stats li { display: flex; flex-direction: column; }
.stat-value {
  font-family: var(--font-head);
  font-size: var(--text-xl);
  font-weight: 700;
  color: #fff;
  line-height: 1;
}
.stat-label {
  font-size: var(--text-xs);
  color: rgba(255,255,255,.6);
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-top: 4px;
}
.stat-divider {
  width: 1px;
  height: 36px;
  background: rgba(255,255,255,.2);
  border-radius: 2px;
}

.hero-scroll {
  position: absolute;
  bottom: var(--space-4);
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,.55);
  display: flex;
  animation: bounce 2s var(--ease-default) infinite;
  z-index: 1;
}
.hero-scroll svg { width: 28px; height: 28px; }
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(8px); }
}

/* ── Section shared ───────────────────────────────────────────── */
.section {
  padding: var(--space-7) 0;
}
.section-title {
  font-family: var(--font-head);
  font-size: clamp(var(--text-xl), 4vw, var(--text-3xl));
  font-weight: 700;
  line-height: var(--leading-snug);
  letter-spacing: -.02em;
  margin-bottom: var(--space-5);
  max-width: 20ch;
}

/* ── Highlights grid ──────────────────────────────────────────── */
.highlights-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto auto;
  gap: var(--space-3);
}

.highlight-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform var(--duration-base) var(--ease-default),
              box-shadow var(--duration-base) var(--ease-default);
}
.highlight-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.highlight-card--large {
  grid-column: 1 / 3;
  grid-row: 1 / 3;
  flex-direction: column;
}
.highlight-card--large .card-img {
  height: 340px;
}

.card-img {
  height: 200px;
  background-size: cover;
  background-position: center;
  flex-shrink: 0;
}

.card-body {
  padding: var(--space-3) var(--space-3) var(--space-3);
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}
.card-tag {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
}
.card-title {
  font-family: var(--font-head);
  font-size: var(--text-lg);
  font-weight: 700;
  line-height: var(--leading-snug);
  letter-spacing: -.01em;
}
.highlight-card--large .card-title {
  font-size: var(--text-xl);
}
.card-desc {
  font-size: var(--text-base);
  color: var(--muted);
  line-height: var(--leading-normal);
  flex: 1;
}
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--accent);
  margin-top: 4px;
  transition: gap var(--duration-fast) var(--ease-default);
}
.card-link:hover { gap: 10px; }

/* ── Editorial pull-quote ─────────────────────────────────────── */
.editorial {
  padding: var(--space-6) 0;
  background: #1a1410; /* hardcoded dark — must stay dark in all colour schemes */
}
.pull-quote {
  max-width: 44ch;
  margin: 0 auto;
  text-align: center;
}
.pull-quote p {
  font-family: var(--font-head);
  font-size: clamp(var(--text-lg), 3vw, var(--text-xl));
  font-style: italic;
  font-weight: 500;
  color: #fff;
  line-height: var(--leading-snug);
  margin-bottom: var(--space-3);
}
.pull-quote footer {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: .06em;
}
.pull-quote cite { font-style: italic; }

/* ── Experiences ──────────────────────────────────────────────── */
.experience-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}
.exp-item {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: box-shadow var(--duration-base) var(--ease-default),
              transform var(--duration-base) var(--ease-default);
}
.exp-item:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
.exp-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  background: var(--accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}
.exp-body h3 {
  font-family: var(--font-head);
  font-size: var(--text-md);
  font-weight: 700;
  margin-bottom: 6px;
}
.exp-body p {
  font-size: var(--text-base);
  color: var(--muted);
  line-height: var(--leading-normal);
  margin-bottom: 8px;
  max-width: 55ch;
}
.exp-meta {
  font-size: var(--text-xs) !important;
  color: var(--muted) !important;
  letter-spacing: .04em;
  margin-bottom: 0 !important;
}

/* ── Seasons ──────────────────────────────────────────────────── */
.seasons-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
}
.season-card {
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.season-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
}
.season-icon { font-size: 1.4rem; }
.season-header h3 {
  font-family: var(--font-head);
  font-size: var(--text-md);
  font-weight: 700;
  flex: 1;
}
.season-dates {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--muted);
  text-transform: uppercase;
  width: 100%;
}
.season-card p {
  font-size: var(--text-sm);
  color: var(--muted);
  line-height: var(--leading-normal);
  flex: 1;
}
.season--spring { border-top: 3px solid #f9a8d4; }
.season--summer { border-top: 3px solid #fbbf24; }
.season--autumn { border-top: 3px solid var(--accent); }
.season--winter { border-top: 3px solid #93c5fd; }

.season-bar {
  height: 6px;
  background: var(--surface-alt);
  border-radius: 99px;
  overflow: hidden;
}
.season-bar span {
  display: block;
  height: 100%;
  width: var(--fill);
  background: var(--accent);
  border-radius: 99px;
  transition: width var(--duration-slow) var(--ease-default);
}
.season--spring .season-bar span { background: #f9a8d4; }
.season--summer .season-bar span { background: #fbbf24; }
.season--winter .season-bar span { background: #93c5fd; }
.season-bar-label {
  font-size: var(--text-xs);
  color: var(--muted);
  letter-spacing: .04em;
}

/* ── Plan CTA ─────────────────────────────────────────────────── */
.plan-cta {
  padding: var(--space-7) 0;
  background: var(--ink-navy);
  color: #fff;
}
.plan-inner {
  max-width: 56ch;
  margin: 0 auto;
  text-align: center;
}
.plan-inner .eyebrow { color: rgba(255,255,255,.6); }
.plan-inner h2 {
  font-family: var(--font-head);
  font-size: clamp(var(--text-xl), 4vw, var(--text-2xl));
  font-weight: 700;
  line-height: var(--leading-snug);
  margin: var(--space-2) 0 var(--space-3);
  letter-spacing: -.02em;
}
.plan-inner p {
  color: rgba(255,255,255,.65);
  font-size: var(--text-base);
  line-height: var(--leading-loose);
  margin-bottom: var(--space-4);
  max-width: 55ch;
}
.plan-actions {
  display: flex;
  gap: var(--space-2);
  justify-content: center;
  flex-wrap: wrap;
}
.plan-inner .btn-ghost {
  color: rgba(255,255,255,.8);
  border-color: rgba(255,255,255,.25);
}
.plan-inner .btn-ghost:hover {
  background: rgba(255,255,255,.08);
  border-color: rgba(255,255,255,.5);
  color: #fff;
}

/* ── Footer ───────────────────────────────────────────────────── */
.site-footer {
  padding: var(--space-5) 0;
  background: #1a1410; /* hardcoded dark — stays dark in all colour schemes */
  color: rgba(255, 255, 255, 0.75);
}
.footer-inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
  flex-wrap: wrap;
}
.footer-inner .brand-en,
.footer-inner .brand-jp { color: #fff; }
.footer-desc {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.6);
  margin-top: 8px;
  max-width: 36ch;
}
.footer-nav {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}
.footer-nav a {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--duration-fast) var(--ease-default);
}
.footer-nav a:hover { color: #fff; }
.footer-copy {
  font-size: var(--text-xs);
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: var(--space-3);
}
.footer-copy a { color: var(--accent); }

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 900px) {
  .highlights-grid {
    grid-template-columns: 1fr 1fr;
  }
  .highlight-card--large {
    grid-column: 1 / -1;
    grid-row: auto;
  }
  .seasons-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 720px) {
  .experience-list {
    grid-template-columns: 1fr;
  }
  .site-nav {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: var(--space-2) 0;
    gap: 0;
  }
  .site-nav.is-open { display: flex; }
  .site-nav a {
    width: 100%;
    padding: var(--space-2) var(--space-4);
    border-radius: 0;
  }
  .nav-toggle { display: flex; }
  .hero-title {
    font-size: clamp(var(--text-2xl), 12vw, var(--text-3xl));
  }
}

@media (max-width: 500px) {
  .highlights-grid {
    grid-template-columns: 1fr;
  }
  .seasons-grid {
    grid-template-columns: 1fr;
  }
  .hero-actions { flex-direction: column; }
  .hero-stats { gap: var(--space-2); }
  .stat-divider { display: none; }
}

/* ── Dark mode (§14.3) ────────────────────────────────────────── */
@media (prefers-color-scheme: dark) {
  :root {
    --bg:          #120f0c;
    --surface:     rgba(26, 20, 16, 0.9);
    --surface-alt: #1e1710;
    --ink:         #f0ebe3;
    --muted:       #9c8a7e;
    --border:      rgba(240, 235, 227, 0.1);
    --accent-soft: rgba(192, 57, 43, 0.16);
    --accent-glow: rgba(192, 57, 43, 0.3);
  }
  .site-header {
    background: rgba(18, 15, 12, 0.82);
  }
  .site-header.scrolled {
    background: rgba(18, 15, 12, 0.96);
  }
  body {
    background: var(--bg);
  }
}

/* ── Reduced motion (§9.7) ────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}