/* ============================================================
   KUROHEBI — Theme tokens
   ============================================================ */
:root {
  /* ----- IREZUMI palette --------------------------------------
     washi  和紙  aged paper, slightly warm cream
     kinari 生成  unbleached paper, deeper cream
     sumi   墨    deep brush ink — warm-black, never pure
     suzu   煤    soot/charcoal warm-dark
     shu    朱    vermillion / cinnabar — sacred red
     beni   紅    saturated crimson — peony red, glow accent
     ai     藍    indigo — water, koi, dragons-of-the-sea
     kincha 金茶  gold-ochre — dragon scales, sun
     matcha 抹茶  muted leaf green
     ---------------------------------------------------------- */
  --washi:    #EFE6D2;
  --kinari:   #E2D6B8;
  --ash:      #B8AB8E;
  --suzu:     #1F1916;
  --sumi:     #100D0B;

  /* Accents */
  --shu:      #B7321C;   /* hanko red, vermillion */
  --beni:     #D8442C;   /* peony red, glowy */
  --ai:       #1E3A5F;   /* indigo */
  --ai-deep:  #122944;
  --kincha:   #B58040;   /* gold-ochre */
  --matcha:   #5A6E3F;

  /* Backwards-compat aliases (older selectors still reference these) */
  --bone:     var(--washi);
  --paper:    var(--kinari);
  --charcoal: var(--suzu);
  --ink:      var(--sumi);
  --red:      var(--shu);
  --red-glow: var(--beni);
  --cyan:     var(--ai);

  /* Type stacks (mutable via Tweaks) */
  --font-display: "Cormorant Garamond", "EB Garamond", serif;
  --font-body:    "Space Grotesk", "Inter", sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, monospace;
  --font-jp:      "Shippori Mincho", "Noto Serif JP", serif;

  /* Layout (mutable via Tweaks) */
  --container: 1320px;
  --gutter: clamp(24px, 5vw, 88px);
  --section-pad: clamp(80px, 12vh, 180px);
  --hairline: 1px solid currentColor;

  /* Grain */
  --grain-opacity: 0.10;

  /* Theme bindings (museum / washi default — daylight scroll print) */
  --bg:        var(--washi);
  --bg-soft:   var(--kinari);
  --fg:        var(--sumi);
  --fg-soft:   #6A5F4D;             /* faded ink */
  --rule:      rgba(16,13,11,0.18);
  --rule-strong: rgba(16,13,11,0.42);
  --accent:    var(--shu);
  --accent-2:  var(--ai);            /* indigo secondary */
  --accent-3:  var(--kincha);        /* gold tertiary */
  --card-bg:   #E8DDC2;
  --card-fg:   var(--sumi);
  --tint-mix:  rgba(239,230,210,0.55);
  --vignette:  radial-gradient(ellipse at 50% 60%, transparent 0%, rgba(239,230,210,0.20) 60%, rgba(239,230,210,0.55) 100%);
  --video-blend: luminosity;
  --video-filter: grayscale(0.45) contrast(1.05) brightness(0.88) sepia(0.18);
  --noise-color: rgba(16,13,11,1);
  --scan-opacity: 0;
}

/* NOIR theme — sumi night, indigo + vermillion lacquer */
html[data-theme="noir"] {
  --bg:        var(--sumi);
  --bg-soft:   var(--ai-deep);
  --fg:        var(--washi);
  --fg-soft:   #8B8676;
  --rule:      rgba(239,230,210,0.16);
  --rule-strong: rgba(239,230,210,0.45);
  --accent:    var(--beni);          /* vermillion stays the hero */
  --accent-2:  var(--ai);            /* indigo secondary, used in glow/ticks */
  --accent-3:  var(--kincha);        /* gold tertiary */
  --card-bg:   #1A1410;
  --card-fg:   var(--washi);
  --tint-mix:  rgba(16,13,11,0.72);
  --vignette:  radial-gradient(ellipse at 50% 55%, transparent 0%, rgba(16,13,11,0.30) 55%, rgba(16,13,11,0.88) 100%);
  --video-blend: normal;
  --video-filter: grayscale(0.55) contrast(1.08) brightness(0.82) sepia(0.12);
  --noise-color: rgba(239,230,210,1);
  --scan-opacity: 0.025;
}

/* Compact density */
html[data-density="compact"] {
  --container: 1180px;
  --gutter: clamp(20px, 3.5vw, 48px);
  --section-pad: clamp(56px, 8vh, 110px);
}

/* ============================================================
   Reset & base
   ============================================================ */
*,*::before,*::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.55;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; background: none; border: 0; color: inherit; cursor: pointer; padding: 0; }
img, svg, video { display: block; max-width: 100%; }
em { font-family: var(--font-display); font-style: italic; font-weight: 400; }

::selection { background: var(--accent); color: var(--bg); }

/* ============================================================
   Grain & scanlines
   ============================================================ */
.grain {
  display: none;
  position: fixed; inset: 0; z-index: 9000;
  pointer-events: none;
  opacity: var(--grain-opacity);
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 1.2 0'/></filter><rect width='240' height='240' filter='url(%23n)'/></svg>");
  animation: grain 4s steps(8) infinite;
}
html[data-theme="noir"] .grain {
  mix-blend-mode: screen;
  opacity: calc(var(--grain-opacity) * 1.0);
}
@keyframes grain {
  0%   { transform: translate(0,0); }
  20%  { transform: translate(-0.6%, 0.4%); }
  40%  { transform: translate(0.4%, -0.6%); }
  60%  { transform: translate(-0.4%, 0.6%); }
  80%  { transform: translate(0.6%, 0.3%); }
  100% { transform: translate(0,0); }
}

.scanlines {
  display: none;
  position: fixed; inset: 0; z-index: 8999;
  pointer-events: none;
  opacity: var(--scan-opacity);
  background-image: repeating-linear-gradient(
    to bottom,
    transparent 0,
    transparent 3px,
    rgba(245,241,232,0.3) 3px,
    rgba(245,241,232,0.3) 4px
  );
}

/* ============================================================
   Custom cursor (only on fine pointers)
   ============================================================ */
.cursor-dot {
  position: fixed; top: 0; left: 0;
  width: 10px; height: 10px;
  background: var(--accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: 10000;
  transform: translate(-50%, -50%);
  transition: width 0.18s ease, height 0.18s ease, background 0.18s ease;
  display: none;
}
@media (pointer: fine) {
  .cursor-dot { display: block; }
  body, button, a { cursor: none; }
}
.cursor-dot.hover {
  width: 28px; height: 28px;
  background: transparent;
  border: 1px solid var(--accent);
}

/* ============================================================
   Top nav
   ============================================================ */
.topnav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex; justify-content: space-between; align-items: center;
  padding: 22px var(--gutter);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg);
  background: linear-gradient(to bottom, rgba(0,0,0,0.35), transparent);
}
html[data-theme="museum"] .topnav {
  color: var(--bone);
  background: linear-gradient(to bottom, rgba(0,0,0,0.30), transparent);
}
html[data-theme="museum"] .topnav { color: var(--bone); /* difference flips it on bone bg = ink */ }
.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand-mark { color: var(--bone); display: inline-flex; }
html[data-theme="museum"] .brand-mark { color: var(--bone); }
.brand-text { font-weight: 500; letter-spacing: 0.32em; }
.navlinks { list-style: none; margin: 0; padding: 0; display: flex; gap: 28px; align-items: center; }
.navlinks a { display: inline-flex; align-items: baseline; gap: 6px; opacity: 0.85; transition: opacity 0.2s; }
.navlinks a:hover { opacity: 1; }
.navlinks .num { font-size: 9px; opacity: 0.6; letter-spacing: 0.12em; }
.navlinks .cta { color: var(--accent); }

/* ============================================================
   Reusable atoms
   ============================================================ */
.kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--fg);
  white-space: nowrap;
}
.kicker.dim { color: var(--fg-soft); }
.num {
  font-family: var(--font-jp);
  font-weight: 600;
  font-style: normal;
}
.num-jp {
  font-family: var(--font-jp);
  letter-spacing: 0.05em;
}
.rule {
  display: inline-block;
  background: currentColor;
  opacity: 0.4;
}
.rule-h { width: 36px; height: 1px; vertical-align: middle; }
.rule-h.short { width: 22px; }
.rule-h.grow { flex: 1; height: 1px; opacity: 0.25; }

.section-marker {
  display: flex; align-items: center; gap: 18px;
  padding: 0 var(--gutter);
  margin-bottom: clamp(40px, 7vh, 90px);
  padding-top: var(--section-pad);
}
.section-marker .num {
  font-size: 22px;
  font-family: var(--font-jp);
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}
.section-marker .kicker {
  font-size: 11px;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  height: 100vh;
  min-height: 720px;
  overflow: hidden;
  background: var(--bg);
  color: var(--bone);
}
.hero-video-wrap {
  position: absolute; inset: 0;
}
.hero-video {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  filter: var(--video-filter);
  mix-blend-mode: var(--video-blend);
}
html[data-theme="museum"] .hero-video {
  /* in museum, blend with bone bg behind */
}
.hero-video-tint {
  position: absolute; inset: 0;
  background: var(--tint-mix);
}
.hero-vignette {
  position: absolute; inset: 0;
  background: var(--vignette);
}

.hero-grid {
  position: absolute; inset: 0;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  grid-template-rows: auto 1fr auto;
  padding: 100px var(--gutter) 60px;
  gap: 24px;
  color: var(--bone);
}
html[data-theme="museum"] .hero-grid { color: var(--ink); }

.hero-meta { display: flex; align-items: center; gap: 14px; }
.hero-meta-tl { grid-column: 1; grid-row: 1; }
.hero-meta-tr { grid-column: 3; grid-row: 1; justify-self: end; }
.hero-meta-bl { grid-column: 1; grid-row: 3; align-self: end; }
.hero-meta-br { grid-column: 3; grid-row: 3; align-self: end; justify-self: end; }

.hero-title {
  grid-column: 1 / -1;
  grid-row: 2;
  align-self: center;
  margin: 0;
  text-align: center;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(96px, 18vw, 280px);
  line-height: 0.86;
  letter-spacing: -0.02em;
  text-shadow:
    0 2px 6px rgba(0,0,0,0.75),
    0 8px 32px rgba(0,0,0,0.55),
    0 24px 80px rgba(0,0,0,0.35);
}
.hero-title em { font-weight: 400; }
.ht-row { display: block; }

.hero-kanji {
  position: absolute;
  top: 16%;
  right: calc(var(--gutter) - 8px);
  display: flex; flex-direction: column;
  font-family: var(--font-jp);
  font-weight: 700;
  font-size: clamp(56px, 7vw, 120px);
  line-height: 0.9;
  color: var(--accent);
  opacity: 0.9;
}
html[data-theme="noir"] .hero-kanji { /* glow removed for legibility */ }

.hero-tagline {
  position: absolute;
  left: 50%;
  bottom: 9%;
  transform: translateX(-50%);
  text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 14px;
  color: inherit;
  z-index: 3;
}
.tag-en {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(20px, 2.4vw, 32px);
  letter-spacing: 0.04em;
}
.tag-en em { color: var(--accent); }
.tag-jp {
  margin: 0;
  font-family: var(--font-jp);
  font-size: 13px;
  letter-spacing: 0.4em;
  opacity: 0.7;
}

.scroll-ind { display: flex; align-items: center; gap: 10px; }
.scroll-line {
  display: inline-block;
  width: 1px; height: 40px;
  background: currentColor;
  opacity: 0.6;
  position: relative;
  overflow: hidden;
}
.scroll-line::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 12px;
  background: var(--accent);
  animation: scroll-tick 1.8s ease-in-out infinite;
}
@keyframes scroll-tick {
  0% { transform: translateY(-100%); }
  60%, 100% { transform: translateY(450%); }
}

/* Hanko seal */
.hanko {
  display: inline-flex; flex-direction: column;
  width: 64px; height: 64px;
  background: var(--accent);
  color: var(--bone);
  font-family: var(--font-jp);
  font-weight: 700;
  font-size: 22px;
  line-height: 1.05;
  text-align: center;
  align-items: center;
  justify-content: center;
  padding: 6px;
  letter-spacing: 0;
  position: relative;
  box-shadow: 0 0 0 1px rgba(0,0,0,0.05) inset;
}
.hanko::after {
  content: '';
  position: absolute; inset: 4px;
  border: 1px solid rgba(255,255,255,0.4);
}
.hanko span { display: block; }
.hanko-hero {
  position: absolute;
  top: 24%;
  left: var(--gutter);
  transform: rotate(-4deg);
}

/* ============================================================
   PHILOSOPHY
   ============================================================ */
.philosophy { padding-bottom: var(--section-pad); }
.phi-grid {
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: minmax(280px, 0.85fr) minmax(0, 1.2fr);
  gap: clamp(40px, 6vw, 96px);
  align-items: start;
}
.phi-kanji {
  font-family: var(--font-jp);
  font-weight: 800;
  font-size: clamp(180px, 28vw, 460px);
  line-height: 0.85;
  color: var(--fg);
  opacity: 1;
  position: relative;
  margin-top: -0.1em;
  margin-left: -0.06em;
}
.phi-kanji::after {
  content: none;
  position: absolute;
  top: 0.14em; left: 0.06em;
  color: var(--accent);
  opacity: 0.18;
  z-index: -1;
}
.phi-body { padding-top: clamp(20px, 4vh, 60px); }
.phi-h {
  margin: 0 0 48px;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(34px, 3.8vw, 58px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  text-wrap: balance;
}
.phi-h em { color: var(--fg); font-weight: 500; font-style: italic; }
html[data-theme="noir"] .phi-h {
  text-shadow: 0 2px 20px rgba(0,0,0,0.5);
}
.phi-accent { color: var(--accent); font-style: italic; font-family: var(--font-display); }
.phi-cols {
  columns: 2;
  column-gap: 48px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--fg-soft);
  margin-bottom: 42px;
}
.phi-cols p:first-child { margin-top: 0; }
.phi-meta {
  display: flex; align-items: center; gap: 16px;
  padding-top: 22px;
  border-top: 1px solid var(--rule);
  flex-wrap: wrap;
}

@media (max-width: 880px) {
  .phi-grid { grid-template-columns: 1fr; }
  .phi-cols { columns: 1; }
  .phi-kanji { font-size: 50vw; }
}

/* ============================================================
   PORTFOLIO
   ============================================================ */
.portfolio { padding-bottom: var(--section-pad); }
.port-head {
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px;
  align-items: end;
  margin-bottom: 44px;
}
.port-h {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(40px, 5.5vw, 80px);
  line-height: 1.04;
  letter-spacing: -0.015em;
  text-wrap: balance;
}
html[data-theme="noir"] .port-h {
  text-shadow: 0 2px 20px rgba(0,0,0,0.5);
}
.port-sub {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--fg-soft);
  max-width: 38ch;
}

.filter-bar {
  padding: 0 var(--gutter);
  display: flex; flex-wrap: wrap; gap: 8px;
  margin-bottom: 36px;
  border-top: 1px solid var(--rule);
  padding-top: 22px;
}
.chip {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 8px 14px;
  border: 1px solid var(--rule);
  color: var(--fg);
  background: transparent;
  transition: all 0.18s ease;
  display: inline-flex; align-items: baseline; gap: 8px;
}
.chip:hover { border-color: var(--rule-strong); }
.chip.active {
  background: var(--fg);
  color: var(--bg);
  border-color: var(--fg);
}
.chip.active .chip-num { color: var(--accent); }
.chip-num { font-size: 9px; opacity: 0.6; }

.masonry {
  padding: 0 var(--gutter);
  columns: 4;
  column-gap: 18px;
}
.masonry .card {
  break-inside: avoid;
  margin: 0 0 18px;
  position: relative;
  background: var(--card-bg);
  color: var(--card-fg);
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.5s cubic-bezier(.2,.7,.2,1), opacity 0.5s ease;
  border: 1px solid var(--rule);
}
.masonry .card.hidden { display: none; }
.masonry .card:hover { transform: translateY(-2px); }
.card-art { position: relative; width: 100%; }
.card-art svg { display: block; width: 100%; height: auto; }
.card-meta {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 14px 16px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  border-top: 1px solid var(--rule);
}
.card-meta .cm-name { color: var(--card-fg); }
.card-meta .cm-num { color: var(--fg-soft); }

.card-redmark {
  position: absolute;
  top: 14px; right: 14px;
  width: 8px; height: 8px;
  background: var(--accent);
  z-index: 2;
}
.card-redmark.dot { border-radius: 50%; }
.card-tag {
  position: absolute;
  top: 14px; left: 14px;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.2em;
  padding: 4px 8px;
  background: rgba(0,0,0,0.5);
  color: var(--bone);
  text-transform: uppercase;
  z-index: 2;
}
html[data-theme="museum"] .card-tag { background: rgba(245,241,232,0.92); color: var(--ink); }
.card:hover .card-tag { background: var(--accent); color: var(--bone); }

@media (max-width: 1100px) { .masonry { columns: 3; } }
@media (max-width: 760px)  { .masonry { columns: 2; } .port-head { grid-template-columns: 1fr; } }
@media (max-width: 480px)  { .masonry { columns: 1; } }

/* ============================================================
   PROCESS / TIMELINE
   ============================================================ */
.process { padding-bottom: var(--section-pad); }
.proc-head {
  padding: 0 var(--gutter);
  margin-bottom: 60px;
  max-width: 1000px;
}
.proc-h {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(36px, 5vw, 72px);
  line-height: 1.06;
  letter-spacing: -0.01em;
  text-wrap: balance;
}
html[data-theme="noir"] .proc-h {
  text-shadow: 0 2px 20px rgba(0,0,0,0.5);
}
.proc-accent { color: var(--accent); font-style: italic; }

.timeline {
  list-style: none;
  margin: 0;
  padding: 0 var(--gutter);
  max-width: var(--container);
}
.step {
  display: grid;
  grid-template-columns: 110px 1px 1fr;
  gap: 32px;
  position: relative;
  padding: 36px 0;
  border-top: 1px solid var(--rule);
}
.step:last-child { border-bottom: 1px solid var(--rule); }
.step-marker {
  display: flex; flex-direction: column; align-items: flex-start; gap: 4px;
  position: sticky; top: 100px;
  align-self: start;
}
.step-kanji {
  font-family: var(--font-jp);
  font-weight: 700;
  font-size: 56px;
  line-height: 0.95;
  color: var(--accent);
}
.step-num {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--fg-soft);
}
.step-line {
  width: 1px;
  background: var(--rule);
  position: relative;
}
.step-line::before {
  content: '';
  position: absolute;
  top: 0; left: -0.5px;
  width: 2px; height: 28px;
  background: var(--accent);
}
.step-body { padding-bottom: 12px; max-width: 64ch; }
.step-body h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(28px, 2.8vw, 40px);
  line-height: 1.1;
  letter-spacing: -0.005em;
}
.step-meta {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-soft);
}
.step-desc {
  margin: 0;
  font-size: 16px;
  line-height: 1.7;
  color: var(--fg);
  max-width: 60ch;
}

@media (max-width: 720px) {
  .step { grid-template-columns: 80px 1px 1fr; gap: 16px; }
  .step-kanji { font-size: 40px; }
}

/* ============================================================
   BOOKING / FOOTER
   ============================================================ */
.booking {
  background: var(--bg-soft);
  border-top: 1px solid var(--rule);
  padding: var(--section-pad) var(--gutter) 40px;
  position: relative;
}
.book-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: clamp(40px, 8vw, 120px);
  margin-bottom: clamp(80px, 12vh, 140px);
}
.book-h {
  margin: 18px 0 24px;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(52px, 7.5vw, 120px);
  line-height: 0.96;
  letter-spacing: -0.02em;
}
html[data-theme="noir"] .book-h {
  text-shadow: 0 2px 20px rgba(0,0,0,0.5);
}
.book-sub {
  margin: 0 0 36px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--fg-soft);
  max-width: 42ch;
}
.book-cta {
  display: inline-flex; align-items: center; justify-content: space-between;
  padding: 18px 26px;
  min-width: 320px;
  background: var(--fg);
  color: var(--bg);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  border: 1px solid var(--fg);
  transition: background 0.22s ease, color 0.22s ease;
}
.book-cta:hover { background: var(--accent); border-color: var(--accent); color: var(--bone); }
.book-cta .arrow { font-family: var(--font-display); font-size: 18px; transform: translateY(-1px); }

.contact { margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 28px 32px; }
.contact > div { }
.contact dt {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--fg-soft);
  margin-bottom: 8px;
}
.contact dd {
  margin: 0;
  font-family: var(--font-display);
  font-size: 18px;
  line-height: 1.4;
  font-weight: 400;
}

.footer-row {
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding-top: 30px;
  border-top: 1px solid var(--rule);
  flex-wrap: wrap;
}
.hanko-foot { width: 56px; height: 56px; font-size: 18px; transform: rotate(2deg); }
.foot-meta { display: flex; flex-direction: column; gap: 4px; align-items: flex-end; text-align: right; }

@media (max-width: 720px) {
  .book-grid { grid-template-columns: 1fr; }
  .contact { grid-template-columns: 1fr; }
}

/* ============================================================
   LIGHTBOX
   ============================================================ */
.lightbox {
  position: fixed; inset: 0; z-index: 9500;
  background: rgba(10,10,10,0.96);
  display: none;
  align-items: center; justify-content: center;
}
.lightbox.open { display: flex; }
.lb-content { width: min(72vw, 920px); max-height: 80vh; }
.lb-content svg { width: 100%; height: auto; max-height: 78vh; background: #141414; }
.lb-meta {
  position: absolute;
  bottom: 36px; left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--bone);
  display: flex; gap: 24px;
}
.lb-meta .lb-redmark { color: var(--red-glow); }
.lb-close {
  position: absolute; top: 28px; right: 28px;
  width: 44px; height: 44px;
  font-size: 28px;
  color: var(--bone);
  border: 1px solid rgba(245,241,232,0.3);
  display: inline-flex; align-items: center; justify-content: center;
  transition: background 0.18s, border-color 0.18s, color 0.18s;
}
.lb-close:hover { background: var(--red-glow); border-color: var(--red-glow); }
.lb-nav {
  position: absolute; top: 50%;
  transform: translateY(-50%);
  width: 56px; height: 56px;
  font-family: var(--font-display);
  font-size: 36px;
  color: var(--bone);
  opacity: 0.5;
  transition: opacity 0.18s;
}
.lb-nav:hover { opacity: 1; color: var(--red-glow); }
.lb-prev { left: 24px; }
.lb-next { right: 24px; }

/* ============================================================
   Scroll fades
   ============================================================ */
[data-fade] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s ease, transform 0.9s cubic-bezier(.2,.7,.2,1);
}
[data-fade].in { opacity: 1; transform: none; }

/* ============================================================
   Kill cursor on touch
   ============================================================ */
@media (pointer: coarse) {
  body, button, a { cursor: auto; }
  .cursor-dot { display: none; }
}

/* ============================================================
   NOIR — Tattoo background & grain
   ============================================================ */
html[data-theme="noir"] .grain   { display: block; }
html[data-theme="noir"] .scanlines { display: block; }

html[data-theme="noir"] body {
  background-image:
    linear-gradient(rgba(0,0,0,0.54), rgba(0,0,0,0.54)),
    url('assets/tattoo-bg.png');
  background-size: cover;
  background-attachment: fixed;
  background-position: center;
  background-color: var(--sumi);
}
@media (max-width: 768px) {
  html[data-theme="noir"] body { background-attachment: scroll; }
}

/* Non-hero sections: semi-transparent overlay so tattoo shows through */
html[data-theme="noir"] .philosophy,
html[data-theme="noir"] .portfolio,
html[data-theme="noir"] .process {
  background: rgba(10, 8, 7, 0.88);
  position: relative;
}
html[data-theme="noir"] .booking {
  background: rgba(8, 6, 5, 0.93);
  border-top: 1px solid rgba(239, 230, 210, 0.16);
}

/* Smooth scroll transition — hero bottom fades into the dark bg */
html[data-theme="noir"] .hero-vignette {
  background:
    radial-gradient(ellipse at 50% 55%, transparent 0%, rgba(16,13,11,0.30) 55%, rgba(16,13,11,0.88) 100%),
    linear-gradient(to bottom, transparent 45%, rgba(10, 8, 7, 0.97) 100%);
}

/* ============================================================
   PAGE LOADER
   ============================================================ */
#site-loader {
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: #0A0806;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.9s cubic-bezier(.4,0,.2,1), transform 1.0s cubic-bezier(.4,0,.2,1);
}
#site-loader.sl-out {
  opacity: 0;
  transform: translateY(-3vh);
  pointer-events: none;
}

.sl-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
  text-align: center;
}

.sl-kanji-pair {
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 0.88;
}
.sl-k1, .sl-k2 {
  display: block;
  font-family: var(--font-jp);
  font-weight: 700;
  font-size: clamp(80px, 11vw, 148px);
  clip-path: inset(0 0 100% 0);
  animation: sl-ink-drop 0.8s cubic-bezier(.2,.7,.2,1) both;
}
.sl-k1 { color: var(--washi); animation-delay: 0.30s; }
.sl-k2 { color: var(--beni);  animation-delay: 0.65s; }
@keyframes sl-ink-drop {
  to { clip-path: inset(0 0 0% 0); }
}

.sl-divider {
  height: 1px;
  background: rgba(239,230,210,0.28);
  width: 0;
  animation: sl-rule 0.55s ease forwards;
  animation-delay: 1.22s;
}
@keyframes sl-rule { to { width: 150px; } }

.sl-brand {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.55em;
  text-transform: uppercase;
  color: var(--washi);
  opacity: 0;
  transform: scaleX(0.82);
  animation: sl-spread 0.65s ease forwards;
  animation-delay: 1.52s;
}
@keyframes sl-spread {
  to { opacity: 0.88; transform: scaleX(1); }
}

.sl-tagline {
  margin: 0;
  font-family: var(--font-jp);
  font-size: 12px;
  letter-spacing: 0.32em;
  color: rgba(239,230,210,0.35);
  opacity: 0;
  animation: sl-fade-in 0.65s ease forwards;
  animation-delay: 1.88s;
}
@keyframes sl-fade-in { to { opacity: 1; } }

/* ============================================================
   ENHANCED SCROLL ANIMATIONS
   ============================================================ */

/* Section heading reveal — fast, confident rise */
[data-fade="heading"] {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.65s ease, transform 0.65s cubic-bezier(.2,.8,.3,1);
}
[data-fade="heading"].in { opacity: 1; transform: none; }

/* Ink-stroke reveal — top to bottom like a calligraphy brush */
[data-fade="ink"] {
  opacity: 1;
  transform: none;
  clip-path: inset(0 0 100% 0);
  transition: clip-path 1.25s cubic-bezier(.2,.7,.2,1);
}
[data-fade="ink"].in { clip-path: inset(0 0 0% 0); }

/* Slide from left — for section markers */
[data-fade="left"] {
  opacity: 0;
  transform: translateX(-38px);
  transition: opacity 0.85s ease, transform 0.85s cubic-bezier(.2,.7,.2,1);
}
[data-fade="left"].in { opacity: 1; transform: none; }

/* Scale reveal — for large kanji characters */
[data-fade="scale"] {
  opacity: 0;
  transform: scale(0.84) translateY(22px);
  transition: opacity 1.15s ease, transform 1.15s cubic-bezier(.2,.7,.2,1);
}
[data-fade="scale"].in { opacity: 1; transform: none; }

/* Stagger delay tokens */
[data-delay="80"]  { transition-delay: 0.08s; }
[data-delay="120"] { transition-delay: 0.12s; }
[data-delay="160"] { transition-delay: 0.16s; }
[data-delay="200"] { transition-delay: 0.20s; }
[data-delay="240"] { transition-delay: 0.24s; }
[data-delay="320"] { transition-delay: 0.32s; }
[data-delay="360"] { transition-delay: 0.36s; }
[data-delay="400"] { transition-delay: 0.40s; }
[data-delay="440"] { transition-delay: 0.44s; }
[data-delay="480"] { transition-delay: 0.48s; }
[data-delay="560"] { transition-delay: 0.56s; }
[data-delay="640"] { transition-delay: 0.64s; }
[data-delay="720"] { transition-delay: 0.72s; }
[data-delay="800"] { transition-delay: 0.80s; }

/* ============================================================
   Section heading accent bar
   ============================================================ */
.phi-h::before,
.port-h::before,
.proc-h::before {
  content: '';
  display: block;
  width: 36px;
  height: 2px;
  background: var(--accent);
  margin-bottom: 22px;
  opacity: 0.9;
}

/* ============================================================
   Timeline step-line draw animation on scroll
   ============================================================ */
.step-line::before {
  height: 0;
  transition: height 0.5s ease 0.35s;
}
.step.in .step-line::before { height: 28px; }

/* ============================================================
   Loader exit state
   ============================================================ */
#site-loader.sl-out {
  opacity: 0;
  transform: translateY(-3vh);
  pointer-events: none;
}
#site-loader.sl-gone { display: none; }

/* ============================================================
   MOBILE — Comprehensive optimizations
   ============================================================ */

/* ----- Hamburger toggle button ----- */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 11px;
  position: relative;
  z-index: 201;
  flex-shrink: 0;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--bone);
  transition: transform 0.28s cubic-bezier(.2,.7,.2,1), opacity 0.2s ease;
  transform-origin: center;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

@media (max-width: 768px) {
  /* Show hamburger, keep topnav above overlay */
  .topnav { z-index: 200; }
  .nav-toggle { display: flex; }

  /* Full-screen slide-in nav overlay */
  .navlinks {
    position: fixed;
    inset: 0;
    background: rgba(10, 8, 6, 0.97);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 44px;
    transform: translateX(100%);
    transition: transform 0.42s cubic-bezier(.2,.7,.2,1);
    pointer-events: none;
    z-index: 150;
    margin: 0;
    padding: 0;
  }
  .navlinks.open {
    transform: none;
    pointer-events: auto;
  }
  .navlinks a {
    font-size: 14px;
    letter-spacing: 0.28em;
    opacity: 1;
  }
  .navlinks .num { font-size: 10px; }
  .navlinks .cta { color: var(--accent); }
}

/* ----- Hero mobile ----- */
@media (max-width: 640px) {
  /* Use small viewport height so bottom bar doesn't cut content */
  .hero { min-height: 100svh; }

  .hero-grid { padding: 76px var(--gutter) 48px; }

  /* Hide decorative coordinate text — too long for narrow column */
  .hero-meta-tr { display: none; }
  .hero-meta-bl { display: none; }

  /* Hide the floating hanko on small screens */
  .hanko-hero { display: none; }

  /* Shrink & fade the side kanji so it doesn't overlap the title */
  .hero-kanji {
    font-size: 12vw;
    opacity: 0.5;
  }

  /* Allow kicker text to wrap on small screens */
  .hero-meta .kicker {
    white-space: normal;
    font-size: 9px;
    letter-spacing: 0.12em;
    line-height: 1.5;
  }

  /* Tagline sizing */
  .tag-en { font-size: clamp(17px, 4.5vw, 26px); }
}

/* ----- Portfolio filter chips on small screens ----- */
@media (max-width: 480px) {
  .chip { padding: 7px 11px; font-size: 10px; }
}

/* ----- Philosophy kanji — prevent over-scale on mobile ----- */
@media (max-width: 480px) {
  .phi-kanji { font-size: 58vw; margin-left: 0; }
}

/* ----- Process timeline on very small screens ----- */
@media (max-width: 480px) {
  .step { grid-template-columns: 56px 1px 1fr; gap: 12px; }
  .step-kanji { font-size: 30px; }
  .step-body h3 { font-size: clamp(20px, 5vw, 28px); }
  .step-desc { font-size: 15px; }
}

/* ----- Booking CTA — full width on mobile ----- */
@media (max-width: 640px) {
  .book-cta {
    width: 100%;
    min-width: 0;
    box-sizing: border-box;
  }
}

/* ----- Lightbox — wider and better positioned on mobile ----- */
@media (max-width: 640px) {
  .lb-content {
    width: min(92vw, 920px);
    max-height: 72vh;
  }
  .lb-close { top: 16px; right: 16px; width: 40px; height: 40px; font-size: 22px; }
  .lb-prev { left: 6px; width: 44px; height: 44px; font-size: 28px; }
  .lb-next { right: 6px; width: 44px; height: 44px; font-size: 28px; }
  .lb-meta { bottom: 14px; font-size: 9px; gap: 12px; flex-wrap: wrap; justify-content: center; }
}

/* ----- Section markers — tighter on mobile ----- */
@media (max-width: 480px) {
  .section-marker { gap: 12px; margin-bottom: clamp(28px, 5vh, 60px); }
  .section-marker .num { font-size: 18px; }
  .section-marker .kicker { font-size: 9px; letter-spacing: 0.14em; }
}

/* ----- Footer row — stack on mobile ----- */
@media (max-width: 480px) {
  .footer-row { flex-direction: column; align-items: flex-start; gap: 16px; }
  .foot-meta { align-items: flex-start; text-align: left; }
}

/* ----- Prevent horizontal overflow from kicker nowrap ----- */
@media (max-width: 640px) {
  .kicker { white-space: normal; }
  /* But keep filter chips and nav labels on one line */
  .chip,
  .navlinks .kicker,
  .card-meta .cm-name,
  .card-meta .cm-num { white-space: nowrap; }
}

/* ----- Touch target sizing ----- */
@media (pointer: coarse) {
  .chip { min-height: 44px; display: inline-flex; align-items: center; }
  .lb-close,
  .lb-prev,
  .lb-next { min-width: 44px; min-height: 44px; }
}