:root {
  --bone: oklch(0.93 0.012 75);
  --bone-dim: oklch(0.78 0.012 70);
  --dust: oklch(0.55 0.008 60);
  --ink: oklch(0.085 0.005 25);
  --ember: #b73a2b;
  --ember-deep: oklch(0.32 0.12 22);

  /* mood / scene */
  --bg1: oklch(0.07 0.005 30);
  --bg2: oklch(0.10 0.008 30);
  --bg3: oklch(0.08 0.006 28);
  --mood-glow: 0.55;

  /* dynamic font vars */
  --display-font: "Cormorant Garamond", "Shippori Mincho", serif;
  --body-font: "Tenor Sans", "Helvetica Neue", sans-serif;
  --mono-font: "JetBrains Mono", ui-monospace, monospace;
  --jp-font: "Shippori Mincho", serif;

  /* atmosphere tweaks */
  --aura-intensity: 0.65;
  --aura-size: 95%;
  --aura-blur: 38px;
  --vignette: 0.55;
  --noise: 0.6;
  --brush-op: 0.55;

  /* mask tweaks */
  --mask-scale: 1.0;
  --mask-x: 0px;
  --mask-y: 0px;
  --mask-rot: 0deg;
  --mask-blend: normal;
  --mask-bright: 1.0;
  --mask-parallax: 22;

  /* mouse parallax (normalized -1..1) */
  --mx: 0;
  --my: 0;

  /* petal */
  --petal-speed: 1;
  --petal-blur: 1;

  --serif: var(--display-font);
  --sans: var(--body-font);
  --mono: var(--mono-font);
  --jp: var(--jp-font);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; }
body {
  background: var(--ink);
  color: var(--bone);
  font-family: var(--sans);
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: geometricPrecision;
}

/* ====== Scene background ====== */
.scene {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 55% at 78% 60%, color-mix(in oklab, var(--ember) 32%, transparent) 0%, transparent 70%),
    radial-gradient(ellipse 50% 40% at 20% 30%, oklch(0.18 0.02 60 / 0.4), transparent 70%),
    radial-gradient(circle at 85% 90%, color-mix(in oklab, var(--ember) 22%, transparent) 0%, transparent 60%),
    linear-gradient(180deg, var(--bg1) 0%, var(--bg2) 60%, var(--bg3) 100%);
  z-index: 0;
  opacity: 1;
  transition: background .6s ease;
}
.scene::after {
  content: "";
  position: absolute; inset: 0;
  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='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.95  0 0 0 0 0.92  0 0 0 0 0.88  0 0 0 0.06 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  opacity: var(--noise);
  mix-blend-mode: overlay;
  pointer-events: none;
}
.scene::before {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 62%;
  height: 1px;
  background: linear-gradient(90deg, transparent, color-mix(in oklab, var(--ember) 30%, transparent) 30%, color-mix(in oklab, var(--ember) 50%, transparent) 50%, color-mix(in oklab, var(--ember) 30%, transparent) 70%, transparent);
  filter: blur(0.4px);
  opacity: 0.7;
}

.app {
  position: relative;
  z-index: 1;
  width: 100vw;
  height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
}

/* ====== NAV ====== */
.nav {
  padding: 26px 56px 0;
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 48px;
  position: relative;
  z-index: 50;
}
.nav .menu { justify-self: end; }
.brand { display: flex; align-items: baseline; gap: 14px; }
.brand .mark {
  font-family: var(--jp);
  font-size: 22px;
  letter-spacing: 0.04em;
  color: var(--bone);
  opacity: 0.92;
}
.brand .sub {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--dust);
}

.menu {
  display: flex;
  gap: 38px;
  font-family: var(--body-font);
  font-size: 13px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}
.menu button {
  background: none; border: 0; padding: 0;
  color: var(--bone-dim);
  font: inherit; letter-spacing: inherit; text-transform: inherit;
  cursor: pointer;
  position: relative;
  transition: color .5s ease;
}
.menu button:hover { color: var(--bone); }
.menu button.active { color: var(--bone); }
.menu button.active::before {
  content: "";
  position: absolute;
  left: -16px; top: 50%;
  width: 8px; height: 1px;
  background: var(--ember);
  transform: translateY(-50%);
  box-shadow: 0 0 6px color-mix(in oklab, var(--ember) 60%, transparent);
}
.menu .idx {
  font-family: var(--mono);
  font-size: 9px;
  color: var(--dust);
  margin-right: 6px;
  letter-spacing: 0.2em;
  vertical-align: super;
}

/* ====== STAGE ====== */
.stage { position: relative; overflow: hidden; }
.page { position: absolute; inset: 0; display: grid; padding: 0 56px; }

/* ====== HOME ====== */
.home { grid-template-columns: 1.1fr 1fr; align-items: center; }
.home-text {
  padding-left: 8px;
  max-width: 620px;
  position: relative;
  z-index: 3;
  align-self: center;
}
.eyebrow {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--dust);
  display: flex; align-items: center; gap: 14px;
  margin-bottom: 22px;
}
.eyebrow .line { flex: 0 0 56px; height: 1px; background: var(--dust); opacity: 0.5; }

.home h1 {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(50px, 6.4vw, 104px);
  line-height: 0.98;
  letter-spacing: -0.015em;
  color: var(--bone);
  text-wrap: pretty;
}
.home h1 em { font-style: italic; color: var(--bone-dim); font-weight: 300; }
/* Brush fonts have their own character — keep italics natural */
:root[style*="Yuji Boku"] .home h1,
:root[style*="Yuji Mai"] .home h1,
:root[style*="Reggae One"] .home h1 { letter-spacing: 0; line-height: 1.04; }

.home h1 .jp {
  display: block;
  font-family: var(--jp);
  font-size: 0.18em;
  letter-spacing: 0.4em;
  color: var(--dust);
  margin-top: 18px;
  font-weight: 400;
}
.lede {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 300;
  font-size: 16px;
  line-height: 1.6;
  color: var(--bone-dim);
  max-width: 380px;
  margin-top: 26px;
}

.home-actions { display: flex; align-items: center; gap: 28px; margin-top: 30px; }
.btn {
  background: none;
  border: 1px solid oklch(0.6 0.012 60 / 0.35);
  color: var(--bone);
  font-family: var(--body-font);
  font-size: 12px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  padding: 16px 28px 14px;
  cursor: pointer;
  position: relative;
  transition: border-color .5s, color .5s, padding-right .5s, background .5s;
  display: inline-flex; align-items: center; gap: 14px;
}
.btn::after { content: ""; width: 22px; height: 1px; background: currentColor; transition: width .5s; }
.btn:hover { border-color: var(--bone-dim); padding-right: 34px; background: color-mix(in oklab, var(--ember) 8%, transparent); }
.btn:hover::after { width: 30px; }
.btn.ghost { border: 0; padding-left: 0; color: var(--dust); }
.btn.ghost:hover { color: var(--bone); background: transparent; }

/* ===== Mask container — parallax + breath + tweakable ===== */
.mask-wrap {
  position: absolute;
  right: -7%;
  bottom: -2%;
  width: 72%;
  height: 108%;
  pointer-events: none;
  z-index: 2;
  transform:
    translate3d(var(--mask-x), var(--mask-y), 0)
    scale(var(--mask-scale))
    rotate(var(--mask-rot));
}
.mask-wrap img.mask {
  position: absolute;
  right: 0; bottom: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: right bottom;
  mix-blend-mode: var(--mask-blend);
  filter: contrast(1.05) brightness(var(--mask-bright)) saturate(0.98);
  opacity: 0.98;
}
.mask-wrap.breath img.mask { animation: maskBreath 9s ease-in-out infinite; }
@keyframes maskBreath {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-10px); }
}

/* ===== Red aura behind mask (the "sumi-e" red glow) ===== */
.mask-aura {
  position: absolute;
  right: -4%; top: 6%;
  width: var(--aura-size);
  height: var(--aura-size);
  background:
    radial-gradient(circle at 50% 55%,
      color-mix(in oklab, var(--ember) 80%, transparent) 0%,
      color-mix(in oklab, var(--ember) 38%, transparent) 24%,
      color-mix(in oklab, var(--ember) 12%, transparent) 50%,
      transparent 70%);
  filter: blur(var(--aura-blur));
  z-index: 1;
  pointer-events: none;
  opacity: var(--aura-intensity);
  animation: auraBreath 14s ease-in-out infinite;
}
@keyframes auraBreath {
  0%, 100% { filter: blur(var(--aura-blur)); }
  50%      { filter: blur(calc(var(--aura-blur) * 1.25)); }
}

/* ===== Brush strokes — sumi-e splash behind the mask ===== */
.brush-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: var(--brush-op);
  overflow: hidden;
}
.brush {
  position: absolute;
  background:
    radial-gradient(ellipse closest-side at 50% 50%,
      color-mix(in oklab, var(--ember) 70%, transparent) 0%,
      color-mix(in oklab, var(--ember) 38%, transparent) 30%,
      color-mix(in oklab, var(--ember) 12%, transparent) 65%,
      transparent 85%);
  filter: blur(8px);
  mix-blend-mode: screen;
}
.brush.b1 { right: 22%; top: 14%; width: 36vw; height: 9vh; transform: rotate(-12deg); }
.brush.b2 { right: 8%; top: 38%; width: 44vw; height: 13vh; transform: rotate(6deg); }
.brush.b3 { right: 30%; top: 58%; width: 30vw; height: 8vh; transform: rotate(-20deg); }
.brush.b4 { right: -8%; top: 26%; width: 50vw; height: 18vh; transform: rotate(2deg); opacity: 0.65; }

/* deep silhouette behind the mask */
.mask-silhouette {
  position: absolute;
  right: 0; bottom: 0;
  width: 78%; height: 100%;
  background:
    radial-gradient(ellipse 50% 70% at 70% 70%, oklch(0.03 0 0 / 0.55), transparent 70%),
    radial-gradient(ellipse 40% 50% at 75% 30%, oklch(0.05 0 0 / 0.4), transparent 70%);
  z-index: 1;
  pointer-events: none;
}

/* ====== Right-side index dots ====== */
.dots {
  position: absolute;
  right: 56px;
  bottom: 70px;
  z-index: 5;
  display: flex; flex-direction: column; gap: 10px;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.26em;
  color: var(--dust);
  text-align: right;
  text-transform: uppercase;
}
.dots b { color: var(--bone); font-weight: 400; }
.dots .bar { width: 1px; height: 40px; background: linear-gradient(180deg, var(--bone), transparent); opacity: 0.4; margin: 2px 0 2px auto; }

/* ====== Footer rail ====== */
.rail {
  padding: 14px 56px 18px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 48px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--dust);
  position: relative;
  z-index: 5;
  background: linear-gradient(180deg, transparent, oklch(0.05 0 0 / 0.6));
}
.rail .group { display: flex; gap: 18px; align-items: center; }
.rail .bone { color: var(--bone-dim); }
.rail .scroll { display: flex; align-items: center; gap: 12px; justify-self: center; }
.rail .scroll::before {
  content: ""; display: block; width: 18px; height: 1px; background: var(--bone-dim);
  animation: scrollLine 2.4s ease-in-out infinite;
}
@keyframes scrollLine {
  0% { transform: translateX(-6px); opacity: 0.3; }
  50% { opacity: 1; }
  100% { transform: translateX(6px); opacity: 0.3; }
}

/* ====== STORIES page ====== */
.stories {
  grid-template-columns: 0.95fr 1.05fr;
  align-items: start;
  padding-top: 0;
  padding-bottom: 0;
  gap: 80px;
}
.stories .col-left { display: flex; flex-direction: column; gap: 40px; padding-left: 8px; align-self: center; }
.stories h2 {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(40px, 4.6vw, 72px);
  line-height: 1.0;
  letter-spacing: -0.015em;
  max-width: 10ch;
}
.stories h2 em { font-style: italic; color: var(--bone-dim); }
.stories .col-left .note {
  font-family: var(--serif);
  font-style: italic;
  font-size: 16px;
  color: var(--bone-dim);
  max-width: 320px;
  line-height: 1.6;
}

.story-list { display: flex; flex-direction: column; gap: 0; border-top: 1px solid oklch(0.4 0.01 50 / 0.25); align-self: center; width: 100%; }
.story {
  display: grid;
  grid-template-columns: 44px 1fr auto;
  gap: 28px;
  padding: 16px 0;
  border-bottom: 1px solid oklch(0.4 0.01 50 / 0.25);
  cursor: pointer;
  transition: padding-left .5s, color .5s;
  align-items: baseline;
}
.story:hover { padding-left: 14px; }
.story .num { font-family: var(--serif); font-style: italic; font-size: 18px; color: var(--bone-dim); font-weight: 300; }
.story .title { font-family: var(--serif); font-weight: 300; font-size: 22px; line-height: 1.18; color: var(--bone); }
.story .meta { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.24em; color: var(--dust); text-transform: uppercase; align-self: center; }

.stories .quiet-mask {
  position: absolute;
  right: -28%; top: -10%;
  width: 70%; height: 130%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.08;
}
.stories .quiet-mask img { width: 100%; height: 100%; object-fit: contain; object-position: right top; mix-blend-mode: var(--mask-blend); filter: blur(4px) brightness(0.6); }

/* ====== ABOUT page ====== */
.about { grid-template-columns: 1.1fr 1fr; align-items: center; gap: 80px; }
.about .body { padding-left: 8px; max-width: 640px; }
.about h2 {
  font-family: var(--serif);
  font-weight: 300;
  font-style: italic;
  font-size: clamp(38px, 4.4vw, 68px);
  line-height: 1.04;
  letter-spacing: -0.01em;
  margin-bottom: 32px;
  text-wrap: balance;
}
.about h2 .jp { display: block; font-style: normal; font-family: var(--jp); font-size: 0.22em; letter-spacing: 0.4em; color: var(--dust); margin-bottom: 14px; }
.about p { font-family: var(--serif); font-weight: 400; font-size: 16px; line-height: 1.7; color: var(--bone-dim); margin-bottom: 16px; max-width: 56ch; }
.about p + p { color: var(--dust); }
.about .sig { margin-top: 30px; display: flex; gap: 32px; align-items: center; font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.3em; text-transform: uppercase; color: var(--dust); flex-wrap: wrap; }
.about .sig span b { color: var(--bone); font-weight: 400; display: block; margin-bottom: 4px; letter-spacing: 0.22em; }

.about .frame {
  position: relative;
  height: 78%;
  max-height: 540px;
  margin-right: 60px;
  border: 1px solid oklch(0.5 0.01 50 / 0.25);
  padding: 24px;
  align-self: center;
}
.about .frame::before {
  content: "明け方 / before dawn";
  position: absolute;
  top: -10px; left: 16px;
  background: var(--ink);
  padding: 0 10px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.28em;
  color: var(--dust);
  text-transform: uppercase;
}
.about .frame::after {
  content: "01 / 04";
  position: absolute;
  bottom: -10px; right: 16px;
  background: var(--ink);
  padding: 0 10px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.28em;
  color: var(--dust);
}
.about .frame img { width: 100%; height: 100%; object-fit: contain; object-position: center; mix-blend-mode: var(--mask-blend); filter: contrast(1.02) brightness(0.92); opacity: 0.96; }

/* a small red wash behind the frame */
.about .frame-glow {
  position: absolute;
  right: 0; top: 0; bottom: 0;
  width: 60%;
  background: radial-gradient(circle at 50% 50%, color-mix(in oklab, var(--ember) 30%, transparent) 0%, transparent 70%);
  filter: blur(40px);
  pointer-events: none;
  z-index: -1;
  opacity: calc(var(--aura-intensity) * 0.7);
}

/* ====== CONTACT page ====== */
.contact { grid-template-columns: 1fr 1fr; align-items: center; gap: 80px; }
.contact .body { padding-left: 8px; max-width: 620px; align-self: center; }
.contact h2 {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(52px, 6.2vw, 96px);
  line-height: 0.98;
  letter-spacing: -0.015em;
  margin-bottom: 16px;
}
.contact h2 em { font-style: italic; color: var(--bone-dim); }
.contact .lede { margin-bottom: 38px; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px 48px; margin-bottom: 36px; }
.contact-grid .item label { display: block; font-family: var(--mono); font-size: 10px; letter-spacing: 0.32em; text-transform: uppercase; color: var(--dust); margin-bottom: 14px; }
.contact-grid .item .val { font-family: var(--serif); font-weight: 300; font-size: 19px; color: var(--bone); line-height: 1.3; }
.contact-grid .item .val small { display: block; font-style: italic; font-size: 14px; color: var(--dust); margin-top: 6px; }
.contact .corner-mask {
  position: absolute;
  right: -8%;
  bottom: -4%;
  width: 56%; height: 110%;
  z-index: 0;
  pointer-events: none;
}
.contact .corner-mask img { width: 100%; height: 100%; object-fit: contain; object-position: right bottom; mix-blend-mode: var(--mask-blend); opacity: 0.75; filter: brightness(0.9) contrast(1.05); }

/* ====== PETALS ====== */
.petals { position: fixed; inset: 0; pointer-events: none; z-index: 4; overflow: hidden; }
.petal { position: absolute; top: -10vh; will-change: transform, opacity, filter; opacity: 0; filter: drop-shadow(0 2px 8px oklch(0.05 0 0 / 0.6)); }
.petal img { width: 100%; height: 100%; display: block; user-select: none; pointer-events: none; }

/* ====== KATANA TRANSITION ====== */
.cut-layer { position: fixed; inset: 0; z-index: 100; pointer-events: none; perspective: 1200px; }
.cut-layer.active { pointer-events: auto; }

.half {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 55% at 78% 60%, color-mix(in oklab, var(--ember) 28%, transparent), transparent 70%),
    linear-gradient(180deg, var(--bg1) 0%, var(--bg2) 60%, var(--bg3) 100%);
  transform-origin: center;
  opacity: 0;
  filter: drop-shadow(0 0 0 transparent);
}
/* default fallback — will be overwritten by JS with a jagged path */
.half.upper { clip-path: polygon(0% 0%, 100% 0%, 100% 38%, 0% 62%); }
.half.lower { clip-path: polygon(0% 62%, 100% 38%, 100% 100%, 0% 100%); }

/* Paper-fiber texture on the torn edge — a hint of warmth where the rip happened */
.half.upper::after,
.half.lower::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    /* soft inner glow at the tear line */
    radial-gradient(ellipse 120% 22% at 50% 50%,
      color-mix(in oklab, var(--ember) 18%, transparent) 0%,
      transparent 60%),
    /* paper grain */
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='400' height='400'><filter id='f'><feTurbulence type='fractalNoise' baseFrequency='1.4' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.9  0 0 0 0 0.85  0 0 0 0 0.8  0 0 0 0.18 0'/></filter><rect width='100%25' height='100%25' filter='url(%23f)'/></svg>");
  pointer-events: none;
  mix-blend-mode: overlay;
  opacity: 0.6;
}

.blade {
  position: absolute;
  top: 50%; left: 50%;
  width: 140vmax;
  height: 2px;
  background: linear-gradient(90deg,
    transparent 0%,
    oklch(0.95 0.02 80 / 0.0) 10%,
    oklch(0.97 0.02 80 / 0.95) 35%,
    oklch(1.0 0.04 80 / 1) 50%,
    oklch(0.97 0.02 80 / 0.95) 65%,
    oklch(0.95 0.02 80 / 0.0) 90%,
    transparent 100%);
  filter: blur(0.5px) drop-shadow(0 0 6px oklch(0.95 0.04 70 / 0.7)) drop-shadow(0 0 18px color-mix(in oklab, var(--ember) 70%, transparent));
  transform: translate(-50%, -50%) rotate(-12deg) scaleX(0);
  transform-origin: 50% 50%;
  opacity: 0;
}

/* page fades */
.page { opacity: 0; transition: opacity .9s ease, transform 1.1s cubic-bezier(.2,.7,.2,1); }
.page.enter { opacity: 1; }

/* vignette */
.vignette {
  position: fixed; inset: 0; z-index: 6; pointer-events: none;
  background: radial-gradient(ellipse 80% 70% at 50% 50%, transparent 55%, oklch(0.03 0 0 / 1) 100%);
  opacity: var(--vignette);
}

/* crosshair detail */
.crosshair { position: absolute; left: 12%; bottom: 18%; width: 1px; height: 60px; background: var(--ember); opacity: 0.4; }
.crosshair::before, .crosshair::after { content: ""; position: absolute; background: var(--ember); opacity: 0.7; }
.crosshair::before { left: -29px; top: 30px; width: 60px; height: 1px; }