/* ======================================================================
   YAMATO APOSTILLE — Design System v3
   Editorial luxury × Quiet Japanism
   Navy + Gold on Cream · Cormorant Garamond × Manrope × JetBrains Mono
   ====================================================================== */

:root {
  /* — Color tokens — */
  --c-navy:       #0A2540;
  --c-navy-deep:  #051A2F;
  --c-navy-soft:  #1E4D7A;
  --c-gold:       #B89548;
  --c-gold-warm:  #C9A961;
  --c-gold-bright:#D4B97D;
  --c-gold-pale:  #F4ECD8;
  --c-cream:      #FAF8F3;
  --c-cream-deep: #F0EBE0;
  --c-paper:      #FFFEFC;
  --c-ink:        #1A1A1A;
  --c-ink-soft:   #404040;
  --c-stone:      #6B635A;
  --c-rule:       #D5CDB8;
  --c-danger:     #8B2424;
  --c-success:    #0F766E;

  /* — Type — */
  --font-display: "Cormorant Garamond", "EB Garamond", Garamond, "Times New Roman", serif;
  --font-body:    "Manrope", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  /* — Space (4px scale) — */
  --s-1:4px;--s-2:8px;--s-3:12px;--s-4:16px;--s-5:20px;--s-6:24px;
  --s-8:32px;--s-10:40px;--s-12:48px;--s-16:64px;--s-20:80px;
  --s-24:96px;--s-32:128px;--s-40:160px;

  /* — Layout — */
  --max:    1280px;
  --gutter: clamp(20px, 5vw, 64px);

  /* — Type scale (fluid) — */
  --t-display: clamp(2.75rem, 7vw, 5.75rem);
  --t-h1:      clamp(2.25rem, 5vw, 4rem);
  --t-h2:      clamp(1.875rem, 3.6vw, 3rem);
  --t-h3:      clamp(1.25rem, 2vw, 1.625rem);
  --t-body:    1.0625rem;
  --t-small:   0.875rem;
  --t-caps:    0.75rem;

  /* — Motion — */
  --ease-out:  cubic-bezier(0.16, 1, 0.3, 1);
  --ease-soft: cubic-bezier(0.4, 0, 0.2, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
*::selection { background: var(--c-gold); color: var(--c-navy); }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--c-cream);
  color: var(--c-ink);
  font-family: var(--font-body);
  font-size: var(--t-body);
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "kern" 1, "liga" 1;
}

img, svg { display: block; max-width: 100%; height: auto; }
button { font: inherit; border: 0; background: 0; cursor: pointer; color: inherit; }
a { color: inherit; text-decoration: none; }
input, textarea, select { font: inherit; }

/* Skip-link for accessibility */
.skip {
  position: absolute; left: -9999px; top: 0;
  padding: var(--s-3) var(--s-6); background: var(--c-navy); color: var(--c-cream);
  z-index: 200;
}
.skip:focus { left: var(--gutter); top: var(--gutter); }

/* ── HEADER ──────────────────────────────────────────────────── */
.hdr {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: var(--s-5) var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-6);
  background: rgba(250, 248, 243, 0.72);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease-soft), background 0.3s var(--ease-soft);
}
.hdr.scrolled {
  border-bottom-color: var(--c-rule);
  background: rgba(250, 248, 243, 0.92);
}

.brand {
  display: flex;
  align-items: baseline;
  gap: var(--s-3);
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-navy);
}
.brand .sep { color: var(--c-gold); font-size: 0.875rem; }
.brand .tag {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--c-stone);
  text-transform: uppercase;
}
@media (max-width: 760px) { .brand .tag, .brand .sep { display: none; } }

.lang-nav {
  display: flex;
  gap: 2px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  flex-wrap: wrap;
}
.lang-nav a {
  padding: 6px 10px;
  color: var(--c-stone);
  transition: color 0.2s;
  position: relative;
}
.lang-nav a:hover { color: var(--c-navy); }
.lang-nav a[aria-current="page"] { color: var(--c-navy); }
.lang-nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 14px; height: 1px;
  background: var(--c-gold);
}

/* ── HERO ────────────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  align-items: center;
  position: relative;
  padding: 132px var(--gutter) 80px var(--gutter);
  gap: clamp(var(--s-8), 6vw, var(--s-20));
}
@media (max-width: 960px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: 112px;
    padding-bottom: 56px;
    min-height: auto;
    gap: var(--s-12);
  }
}

.hero__copy { position: relative; z-index: 2; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--t-caps);
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: var(--s-6);
  display: flex;
  align-items: center;
  gap: var(--s-3);
}
.eyebrow::before {
  content: "";
  width: 32px; height: 1px;
  background: currentColor;
  display: inline-block;
}

.hero__eyebrow { animation: fadeUp 0.8s var(--ease-out) 0.1s both; }

.hero__title {
  font-family: var(--font-display);
  font-size: var(--t-display);
  font-weight: 500;
  line-height: 1.02;
  letter-spacing: -0.018em;
  color: var(--c-navy);
  margin-bottom: var(--s-8);
  animation: fadeUp 0.9s var(--ease-out) 0.25s both;
}
.hero__title em {
  font-style: italic;
  color: var(--c-gold);
  font-weight: 500;
}

.hero__lead {
  font-size: clamp(1.0625rem, 1.5vw, 1.1875rem);
  line-height: 1.55;
  color: var(--c-ink-soft);
  max-width: 36ch;
  margin-bottom: var(--s-10);
  animation: fadeUp 0.9s var(--ease-out) 0.4s both;
}

.hero__cta-row {
  display: flex;
  align-items: center;
  gap: var(--s-8);
  flex-wrap: wrap;
  animation: fadeUp 0.9s var(--ease-out) 0.55s both;
}

/* — Buttons — */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  padding: 16px 28px;
  background: var(--c-navy);
  color: var(--c-cream);
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: 0;
  position: relative;
  overflow: hidden;
  isolation: isolate;
  transition: color 0.4s var(--ease-soft);
}
.btn::after {
  content: "→";
  font-family: var(--font-display);
  font-size: 1rem;
  transition: transform 0.4s var(--ease-out);
}
.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--c-gold);
  transform: translateY(100%);
  transition: transform 0.4s var(--ease-out);
  z-index: -1;
}
.btn:hover { color: var(--c-navy); }
.btn:hover::before { transform: translateY(0); }
.btn:hover::after { transform: translateX(4px); }
.btn:focus-visible { outline: 2px solid var(--c-gold); outline-offset: 4px; }

.btn-ghost {
  padding: var(--s-3) 0;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-ink-soft);
  border-bottom: 1px solid var(--c-rule);
  transition: color 0.2s, border-color 0.2s;
}
.btn-ghost:hover { color: var(--c-navy); border-color: var(--c-gold); }

/* — Hero visual — */
.hero__visual {
  position: relative;
  aspect-ratio: 4 / 5;
  overflow: hidden;
}
.hero__visual img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: contrast(1.04) saturate(0.96);
  animation: imgRise 1.6s var(--ease-out) 0.3s both;
}
.hero__visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(140deg, transparent 55%, rgba(10, 37, 64, 0.22));
  z-index: 1;
  pointer-events: none;
}
.hero__kanji-overlay {
  position: absolute;
  bottom: var(--s-8);
  left: var(--s-8);
  z-index: 2;
  color: var(--c-cream);
  font-family: var(--font-display);
  writing-mode: vertical-rl;
  text-orientation: upright;
  font-size: clamp(1.25rem, 1.7vw, 1.625rem);
  font-weight: 400;
  letter-spacing: 0.18em;
  opacity: 0.94;
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.35);
  animation: fadeIn 1.2s var(--ease-out) 1s both;
}

.hero__corner {
  position: absolute;
  bottom: var(--s-12);
  right: var(--gutter);
  font-family: var(--font-mono);
  font-size: var(--t-caps);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-stone);
  display: flex;
  align-items: center;
  gap: var(--s-3);
  animation: fadeIn 1s var(--ease-out) 1s both;
}
.hero__corner::before {
  content: ""; width: 24px; height: 1px;
  background: var(--c-gold);
}
@media (max-width: 960px) { .hero__corner { display: none; } }

/* ── SECTIONS ────────────────────────────────────────────────── */
.section {
  padding: clamp(var(--s-16), 12vw, var(--s-32)) var(--gutter);
  position: relative;
}
.section--cream-deep { background: var(--c-cream-deep); }
.section--navy { background: var(--c-navy); color: var(--c-cream); }

.container {
  max-width: var(--max);
  margin: 0 auto;
}

.section__title {
  font-family: var(--font-display);
  font-size: var(--t-h2);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.018em;
  color: var(--c-navy);
  margin-bottom: var(--s-12);
  max-width: 22ch;
}
.section--navy .section__title { color: var(--c-cream); }
.section--navy .eyebrow { color: var(--c-gold-warm); }

/* ── "WHAT WE DO" ────────────────────────────────────────────── */
.what {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: clamp(var(--s-10), 6vw, var(--s-20));
  align-items: start;
}
@media (max-width: 960px) {
  .what { grid-template-columns: 1fr; }
}
.what__body p {
  font-size: 1.0625rem;
  line-height: 1.72;
  color: var(--c-ink-soft);
  margin-bottom: var(--s-5);
  max-width: 58ch;
}
.what__body p:last-child { margin-bottom: 0; }
.what__body strong { color: var(--c-navy); font-weight: 600; }

/* — Kanji artifact card — */
.kanji-card {
  position: relative;
  padding: var(--s-12) var(--s-10);
  background: var(--c-paper);
  border: 1px solid var(--c-rule);
  text-align: center;
}
.kanji-card::before,
.kanji-card::after {
  content: "";
  position: absolute;
  width: 28px; height: 28px;
  border: 1.5px solid var(--c-gold);
  pointer-events: none;
}
.kanji-card::before { top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
.kanji-card::after  { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }

.kanji-card__label {
  font-family: var(--font-mono);
  font-size: var(--t-caps);
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-stone);
  margin-bottom: var(--s-6);
}
.kanji-card__chars {
  font-family: var(--font-display);
  font-size: clamp(1.625rem, 3.4vw, 2.25rem);
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--c-navy);
  line-height: 1.4;
  margin-bottom: var(--s-4);
}
.kanji-card__romanji {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1rem;
  color: var(--c-ink-soft);
  margin-bottom: var(--s-5);
  letter-spacing: 0.01em;
}
.kanji-card__trans {
  padding-top: var(--s-5);
  border-top: 1px solid var(--c-rule);
  font-size: 0.875rem;
  color: var(--c-ink-soft);
  font-style: italic;
  font-family: var(--font-display);
}

/* ── "HOW IT WORKS" ──────────────────────────────────────────── */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(var(--s-6), 3vw, var(--s-10));
}
@media (max-width: 900px) { .steps { grid-template-columns: 1fr; } }

.step {
  padding-top: var(--s-10);
  border-top: 1px solid var(--c-gold);
  position: relative;
}
.step__num {
  font-family: var(--font-display);
  font-size: clamp(3rem, 6vw, 4.5rem);
  font-weight: 400;
  line-height: 1;
  color: var(--c-gold);
  margin-bottom: var(--s-8);
  letter-spacing: -0.02em;
}
.step__title {
  font-family: var(--font-display);
  font-size: var(--t-h3);
  font-weight: 500;
  color: var(--c-navy);
  margin-bottom: var(--s-4);
  line-height: 1.2;
  letter-spacing: -0.01em;
}
.step__body {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--c-ink-soft);
}

/* ── "WHY US" ────────────────────────────────────────────────── */
.why-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--c-rule);
  border: 1px solid var(--c-rule);
}
@media (max-width: 720px) { .why-grid { grid-template-columns: 1fr; } }

.why-item {
  padding: clamp(var(--s-8), 4vw, var(--s-12));
  background: var(--c-cream);
  position: relative;
  transition: background 0.3s var(--ease-soft);
}
.why-item:hover { background: var(--c-paper); }
.why-item__num {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  color: var(--c-gold);
  margin-bottom: var(--s-5);
}
.why-item__text {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 1.8vw, 1.5rem);
  font-weight: 500;
  line-height: 1.3;
  color: var(--c-navy);
  letter-spacing: -0.01em;
}
.why-item__text em {
  font-style: italic;
  color: var(--c-gold);
  font-weight: 500;
}

/* ── CITIES / TOKYO-BRUSSELS CINEMATIC ───────────────────────── */
.cities {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: stretch;
  background: var(--c-navy);
  color: var(--c-cream);
  min-height: clamp(420px, 60vh, 560px);
}
@media (max-width: 960px) {
  .cities {
    grid-template-columns: 1fr;
    grid-template-rows: 280px auto;
  }
}
.cities__visual {
  position: relative;
  overflow: hidden;
}
.cities__visual img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: brightness(0.72) saturate(0.88) contrast(1.06);
}
.cities__visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, transparent 55%, rgba(10, 37, 64, 0.55));
}
@media (max-width: 960px) {
  .cities__visual::after {
    background: linear-gradient(to bottom, transparent 55%, rgba(10, 37, 64, 0.55));
  }
}
.cities__content {
  padding: clamp(var(--s-12), 6vw, var(--s-20)) var(--gutter);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.cities__caption {
  font-family: var(--font-mono);
  font-size: var(--t-caps);
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: var(--s-6);
  display: flex;
  align-items: center;
  gap: var(--s-3);
  flex-wrap: wrap;
}
.cities__caption::before {
  content: ""; width: 24px; height: 1px;
  background: currentColor; flex-shrink: 0;
}
.cities__quote {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.8vw, 2.125rem);
  font-weight: 400;
  font-style: italic;
  line-height: 1.32;
  color: var(--c-cream);
  margin-bottom: var(--s-6);
  letter-spacing: -0.005em;
  max-width: 28ch;
}
.cities__small {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--c-gold-pale);
  opacity: 0.78;
  letter-spacing: 0.06em;
  line-height: 1.6;
}

/* ── CONTACT ─────────────────────────────────────────────────── */
.contact {
  display: grid;
  grid-template-columns: 1fr 1.45fr;
  gap: clamp(var(--s-10), 6vw, var(--s-20));
  align-items: start;
}
@media (max-width: 900px) {
  .contact { grid-template-columns: 1fr; }
}
.contact__intro .section__title { margin-bottom: var(--s-6); }
.contact__intro p {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--c-ink-soft);
  margin-bottom: var(--s-8);
  max-width: 38ch;
}
.contact__email {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  color: var(--c-navy);
  padding: var(--s-3) 0;
  border-bottom: 1px solid var(--c-rule);
  transition: border-color 0.2s, color 0.2s;
}
.contact__email::before {
  content: "✉";
  color: var(--c-gold);
  font-size: 1rem;
}
.contact__email:hover { border-color: var(--c-gold); color: var(--c-gold); }

/* — Form card — */
.form-card {
  background: var(--c-paper);
  border: 1px solid var(--c-rule);
  padding: clamp(var(--s-8), 4vw, var(--s-12));
  position: relative;
}
.form-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(to right,
    var(--c-gold) 0%,
    var(--c-gold-warm) 40%,
    var(--c-gold-bright) 60%,
    var(--c-gold) 100%);
}

.form-row {
  display: grid;
  gap: var(--s-6);
}
.form-row + .form-row { margin-top: var(--s-6); }
.form-row.two { grid-template-columns: 1fr 1fr; }
@media (max-width: 540px) { .form-row.two { grid-template-columns: 1fr; } }

.field {
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
}
.field label {
  font-family: var(--font-mono);
  font-size: var(--t-caps);
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-stone);
}
.field input,
.field textarea {
  font-size: 1rem;
  padding: var(--s-3) 0;
  border: 0;
  border-bottom: 1px solid var(--c-rule);
  background: transparent;
  color: var(--c-ink);
  border-radius: 0;
  width: 100%;
  transition: border-color 0.2s;
  font-family: var(--font-body);
}
.field input:focus,
.field textarea:focus {
  outline: 0;
  border-bottom-color: var(--c-gold);
}
.field textarea {
  min-height: 110px;
  resize: vertical;
  line-height: 1.55;
}

.field.honeypot {
  position: absolute;
  left: -9999px;
  width: 1px; height: 1px;
}

.form-submit {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-6);
  margin-top: var(--s-10);
  padding-top: var(--s-6);
  border-top: 1px solid var(--c-rule);
  flex-wrap: wrap;
}

.form-msg {
  font-size: 0.875rem;
  line-height: 1.5;
  flex: 1;
  min-width: 200px;
}
.form-msg.ok  { color: var(--c-success); }
.form-msg.err { color: var(--c-danger); }
.form-msg:empty { display: none; }

/* ── FOOTER ─────────────────────────────────────────────────── */
.ftr {
  background: var(--c-navy);
  color: var(--c-cream);
  padding: var(--s-16) var(--gutter) var(--s-10);
}
.ftr-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--s-12);
  align-items: end;
}
@media (max-width: 720px) {
  .ftr-inner { grid-template-columns: 1fr; align-items: start; }
}
.ftr__brand {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--c-cream);
  text-transform: uppercase;
}
.ftr__brand .dot { color: var(--c-gold); }
.ftr__rule {
  width: 48px; height: 1px;
  background: var(--c-gold);
  margin: var(--s-5) 0 var(--s-6);
}
.ftr__addr {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--c-gold-pale);
  opacity: 0.86;
}
.ftr__addr strong { color: var(--c-cream); font-weight: 500; opacity: 1; }
.ftr__addr a {
  color: var(--c-gold-warm);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}
.ftr__addr a:hover { border-bottom-color: var(--c-gold-warm); }

.ftr__meta {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-gold-pale);
  opacity: 0.65;
  text-align: right;
  line-height: 1.8;
}
@media (max-width: 720px) { .ftr__meta { text-align: left; } }

.ftr__small {
  margin-top: var(--s-12);
  padding-top: var(--s-6);
  border-top: 1px solid rgba(184, 149, 72, 0.18);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--c-gold-pale);
  opacity: 0.55;
  text-align: center;
}

/* ── ANIMATIONS ─────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes imgRise {
  from { opacity: 0; transform: scale(1.03); }
  to   { opacity: 1; transform: scale(1); }
}

/* — Reveal on scroll (vanilla JS opt-in) — */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
}
.reveal.is-in {
  opacity: 1;
  transform: translateY(0);
}

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