/* ═══════════════════════════════════════════════════════════════
   SYLINT LABS — 墨の庭 (Jardín de Tinta)
   Sistema de diseño wabi-sabi · todo construido desde cero
   ═══════════════════════════════════════════════════════════════ */

/* ── Tokens ─────────────────────────────────────────────────── */
:root {
  /* Paleta: tinta, papel, bermellón, índigo, oro viejo */
  --sumi:      #0d0d0d;
  --sumi-soft: #161614;
  --kinari:    #e8e2d5;
  --kinari-dim:#d8d1c2;
  --shu:       #c8442c;
  --ai:        #2e4a62;
  --ai-light:  #8eb4ca;
  --kin:       #b8965a;

  --ink:       var(--kinari);      /* tinta sobre fondo actual */
  --paper:     var(--sumi);        /* fondo actual */
  --ink-faint: rgba(232, 226, 213, 0.55);
  --ink-ghost: rgba(232, 226, 213, 0.14);
  --line:      rgba(232, 226, 213, 0.16);

  /* Tipografía */
  --f-display: "Cormorant Garamond", serif;
  --f-jp:      "Shippori Mincho", serif;
  --f-body:    "Zen Kaku Gothic New", sans-serif;

  /* Ritmo */
  --pad-x: clamp(1.25rem, 5vw, 6rem);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-ink: cubic-bezier(0.65, 0, 0.35, 1);
}

[data-theme="light"] {
  --ink:       var(--sumi);
  --paper:     var(--kinari);
  --ink-faint: rgba(13, 13, 13, 0.55);
  --ink-ghost: rgba(13, 13, 13, 0.10);
  --line:      rgba(13, 13, 13, 0.16);
}

[data-theme=dark] {
  --ink:       var(--kinari);
  --paper:     var(--sumi);
  --ink-faint: rgba(232, 226, 213, 0.66);
  --ink-ghost: rgba(232, 226, 213, 0.14);
  --line:      rgba(232, 226, 213, 0.18);
}

/* ── Reset / base ───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: auto; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }

body {
  background: var(--sumi);
  color: var(--kinari);
  font-family: var(--f-body);
  font-weight: 300;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background 1.2s var(--ease-ink);
}

body.theme-light { background: var(--kinari); }
/* Variables de tinta para secciones claras (sin esto, los títulos de
   capítulo quedaban kinari sobre kinari: invisibles) */
body.theme-light {
  --ink: var(--sumi);
  --ink-faint: rgba(13, 13, 13, 0.55);
  --ink-ghost: rgba(13, 13, 13, 0.10);
  --line: rgba(13, 13, 13, 0.16);
}
body.no-scroll { overflow: hidden; }

::selection { background: var(--shu); color: var(--kinari); }

img, canvas, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { background: none; border: 0; color: inherit; font: inherit; cursor: pointer; }

/* Cursor nativo fuera en dispositivos finos */
@media (pointer: fine) {
  body, a, button { cursor: none; }
}

/* ── Lienzo WebGL + grano ───────────────────────────────────── */
#webgl {
  position: fixed; inset: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
}

.grain {
  position: fixed; inset: -50%;
  width: 200%; height: 200%;
  z-index: 3;
  pointer-events: none;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='240' height='240' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grain-shift 0.9s steps(4) infinite;
}
@keyframes grain-shift {
  0% { transform: translate(0, 0); }
  25% { transform: translate(-2%, 3%); }
  50% { transform: translate(3%, -2%); }
  75% { transform: translate(-3%, -3%); }
  100% { transform: translate(2%, 2%); }
}

/* ── Cursor de tinta ────────────────────────────────────────── */
.cursor {
  position: fixed; top: 0; left: 0;
  z-index: 300; /* por encima del detalle de obra (150) y el preloader (200) */
  pointer-events: none;
  display: none;
}
@media (pointer: fine) { .cursor { display: block; } }

.cursor__dot {
  position: absolute; top: -3px; left: -3px;
  width: 6px; height: 6px;
  background: var(--shu);
  border-radius: 50%;
  transform: translate(var(--cx, -100px), var(--cy, -100px));
}
.cursor__ring {
  position: absolute; top: -19px; left: -19px;
  width: 38px; height: 38px;
  border: 1px solid var(--ink-faint);
  border-radius: 50%;
  transform: translate(var(--rx, -100px), var(--ry, -100px)) scale(var(--rs, 1));
  transition: border-color 0.3s, background 0.3s;
}
.cursor.is-hover .cursor__ring { border-color: var(--shu); background: rgba(200, 68, 44, 0.08); }
.cursor__label {
  position: absolute; top: 14px; left: 14px;
  transform: translate(var(--rx, -100px), var(--ry, -100px));
  font-family: var(--f-jp);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--shu);
  opacity: 0;
  transition: opacity 0.3s;
  white-space: nowrap;
}
.cursor.has-label .cursor__label { opacity: 1; }

/* ── Preloader ──────────────────────────────────────────────── */
#preloader {
  position: fixed; inset: 0;
  z-index: 200;
  display: grid; place-items: center;
  background: var(--sumi);
}
.preloader__veil {
  position: absolute; inset: 0;
  background: var(--sumi);
}
.preloader__veil--a { z-index: 1; }
.preloader__wave {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  z-index: 2;
  transform: translateY(110vh); /* oculta bajo el borde inferior */
  will-change: transform;
}

.preloader__inner { position: relative; z-index: 3; text-align: center; }
.preloader__enso {
  width: clamp(110px, 16vw, 170px);
  margin: 0 auto;
  color: var(--kinari);
  overflow: visible;
}
.preloader__enso-path {
  stroke-dasharray: 560;
  stroke-dashoffset: 560;
  filter: drop-shadow(0 0 6px rgba(232, 226, 213, 0.25));
}
.preloader__counter {
  margin-top: 1.4rem;
  font-family: var(--f-jp);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  color: var(--kinari);
  min-height: 1.4em;
}
.preloader__brand { margin-top: 0.9rem; display: grid; gap: 0.25rem; }
.preloader__name {
  font-family: var(--f-display);
  font-size: 0.85rem;
  letter-spacing: 0.55em;
  text-indent: 0.55em;
  color: var(--ink-faint);
}
.preloader__jp {
  font-family: var(--f-jp);
  font-size: 0.7rem;
  letter-spacing: 0.4em;
  text-indent: 0.4em;
  color: var(--shu);
}

/* ── Cabecera ───────────────────────────────────────────────── */
.site-head {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.4rem var(--pad-x);
  mix-blend-mode: difference;
  color: #e8e2d5;
  opacity: 0;
}
.site-head__logo {
  display: flex; align-items: center; gap: 0.7rem;
  font-family: var(--f-display);
  letter-spacing: 0.45em;
  font-size: 0.95rem;
}
.logo-enso { width: 26px; height: 26px; color: var(--shu); }
.site-head__nav { display: flex; gap: clamp(1rem, 3vw, 2.6rem); }
.site-head__nav a {
  display: flex; align-items: baseline; gap: 0.45rem;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  opacity: 0.75;
  transition: opacity 0.3s;
  position: relative;
}
.site-head__nav a i {
  font-family: var(--f-jp);
  font-style: normal;
  color: var(--shu);
  font-size: 0.85em;
}
.site-head__nav a::after {
  content: "";
  position: absolute; left: 0; bottom: -4px;
  width: 100%; height: 1px;
  background: currentColor;
  transform: scaleX(0); transform-origin: right;
  transition: transform 0.45s var(--ease-out);
}
.site-head__nav a:hover { opacity: 1; }
.site-head__nav a:hover::after { transform: scaleX(1); transform-origin: left; }

.audio-toggle {
  display: flex; align-items: center; gap: 0.55rem;
  padding: 0.4rem 0.2rem;
}
.audio-toggle__bars { display: flex; align-items: flex-end; gap: 2.5px; height: 14px; }
.audio-toggle__bars i {
  width: 2px; height: 4px;
  background: currentColor;
  transition: height 0.3s var(--ease-out);
}
.audio-toggle.is-on .audio-toggle__bars i { animation: bars 1s ease-in-out infinite; }
.audio-toggle.is-on .audio-toggle__bars i:nth-child(1) { animation-delay: 0s; }
.audio-toggle.is-on .audio-toggle__bars i:nth-child(2) { animation-delay: 0.2s; }
.audio-toggle.is-on .audio-toggle__bars i:nth-child(3) { animation-delay: 0.35s; }
.audio-toggle.is-on .audio-toggle__bars i:nth-child(4) { animation-delay: 0.1s; }
@keyframes bars { 0%, 100% { height: 4px; } 50% { height: 14px; } }
.audio-toggle__jp { font-family: var(--f-jp); font-size: 0.9rem; color: var(--shu); }

/* ── Progreso lateral ───────────────────────────────────────── */
.progress {
  position: fixed; right: clamp(0.8rem, 2vw, 1.8rem); top: 50%;
  transform: translateY(-50%);
  z-index: 40;
  display: flex; flex-direction: column; align-items: center; gap: 1rem;
  mix-blend-mode: difference;
  color: #e8e2d5;
  opacity: 0;
}
.progress__chapter {
  font-family: var(--f-jp);
  font-size: 1rem;
  writing-mode: vertical-rl;
}
.progress__track {
  width: 1px; height: 22vh;
  background: rgba(232, 226, 213, 0.25);
  overflow: hidden;
}
.progress__fill {
  width: 100%; height: 100%;
  background: var(--shu);
  transform: scaleY(0);
  transform-origin: top;
}

/* ── Secciones: base ────────────────────────────────────────── */
main { position: relative; z-index: 2; }

.section {
  position: relative;
  min-height: 100vh;
  padding: 16vh var(--pad-x) 12vh;
}

.chapter { position: relative; margin-bottom: clamp(3rem, 8vh, 6rem); }
.chapter__num {
  display: inline-block;
  font-family: var(--f-jp);
  font-size: 0.8rem;
  letter-spacing: 0.5em;
  color: var(--shu);
  border: 1px solid currentColor;
  padding: 0.35em 0.9em 0.35em 1.4em;
  margin-bottom: 1.6rem;
}
.chapter__title {
  display: flex; align-items: flex-end; gap: clamp(1rem, 3vw, 2.2rem);
  line-height: 0.95;
}
.chapter__kanji {
  font-family: var(--f-jp);
  font-weight: 600;
  font-size: clamp(3.4rem, 9vw, 7rem);
  color: var(--shu);
  text-shadow: 0 0 30px rgba(200, 68, 44, 0.25);
}
.chapter__text {
  font-family: var(--f-display);
  font-weight: 500;
  font-size: clamp(2.6rem, 7vw, 5.4rem);
  letter-spacing: 0.08em;
  color: var(--ink);
}
.chapter__sub {
  margin-top: 1.4rem;
  max-width: 46ch;
  color: var(--ink-faint);
  font-size: clamp(0.9rem, 1.4vw, 1.02rem);
}

/* Utilidad: split de caracteres para reveals */
[data-split] .char {
  display: inline-block;
  transform: translateY(115%) rotate(4deg);
  will-change: transform;
}
[data-split] { overflow: hidden; display: inline-block; }

/* ── 墨 HERO ────────────────────────────────────────────────── */
.section--hero {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding-top: 0; padding-bottom: 0;
}

.hero__vertical {
  position: absolute; left: var(--pad-x); top: 50%;
  transform: translateY(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 1.2rem;
}
.hero__vertical-jp {
  writing-mode: vertical-rl;
  font-family: var(--f-jp);
  font-size: clamp(1.4rem, 2.6vw, 2.2rem);
  letter-spacing: 0.5em;
  color: var(--kinari);
  text-shadow: 0 0 24px rgba(232, 226, 213, 0.2);
}
.hero__vertical-line { width: 1px; height: 9vh; background: var(--ink-faint); }
.hero__vertical-sub {
  writing-mode: vertical-rl;
  font-size: 0.62rem;
  letter-spacing: 0.35em;
  color: var(--ink-faint);
}

.hero__core { text-align: center; position: relative; }

.hero__title {
  font-family: var(--f-display);
  font-weight: 500;
  line-height: 0.92;
  letter-spacing: 0.04em;
  user-select: none;
}
.hero__title-line { display: block; overflow: hidden; }
.hero__title-line > span {
  display: inline-block;
  font-size: clamp(4.2rem, 14.5vw, 12.5rem);
  color: var(--kinari);
  text-shadow: 0 0 60px rgba(232, 226, 213, 0.12);
}
.hero__title-line--hollow > span {
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(232, 226, 213, 0.75);
}

.hero__scrollcue {
  position: absolute; bottom: 4.5vh; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 0.8rem;
}
.hero__scrollcue-jp {
  writing-mode: vertical-rl;
  font-family: var(--f-jp);
  font-size: 0.75rem;
  letter-spacing: 0.4em;
  color: var(--ink-faint);
}
.hero__scrollcue-line {
  width: 1px; height: 7vh;
  background: linear-gradient(var(--shu), transparent);
  animation: scrollcue 2.2s var(--ease-ink) infinite;
  transform-origin: top;
}
@keyframes scrollcue {
  0% { transform: scaleY(0); } 45% { transform: scaleY(1); }
  100% { transform: scaleY(1); opacity: 0; }
}

/* ── 技 OBRAS ───────────────────────────────────────────────── */
/* Escaparate claro: vapor de tinta sobre papel, el cilindro 3D gira
   y el título de la cara activa se superpone en grande (ref. junni.co.jp) */
.section--works {
  color: var(--sumi);
  height: 100svh;
  min-height: 720px;
  overflow: hidden;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  padding-top: clamp(5.5rem, 10vh, 7.5rem);
  padding-bottom: clamp(2rem, 4vh, 3rem);
}
/* Veladura papel: deja respirar el vapor claro del WebGL y da contraste */
.section--works::before {
  content: "";
  position: absolute; inset: 0;
  background: rgba(232, 226, 213, 0.55);
  pointer-events: none;
}
.section--works > * { position: relative; }
.section--works .chapter {
  margin-bottom: clamp(0.5rem, 1.5vh, 1.2rem);
}
.works__scene {
  position: relative;
  height: 100%;
  min-height: 360px;
  perspective: 1400px;
  perspective-origin: 50% 50%;
}
.works__cylinder {
  position: absolute;
  left: 50%; top: 50%;
  width: 0; height: 0;
  transform-style: preserve-3d;
  will-change: transform;
}

.work-panel {
  position: absolute; left: 0; top: 0;
  width: clamp(340px, 56vw, 760px);
  transform-style: preserve-3d;
  backface-visibility: hidden;
  will-change: transform, opacity;
  outline: none;
  filter: saturate(0.6) brightness(0.94);
  transition: filter 0.45s var(--ease-out);
}
.work-panel.is-active {
  filter: saturate(1) brightness(1);
}
.work-panel:focus-visible .work-panel__frame {
  box-shadow:
    0 30px 60px -20px rgba(13, 13, 13, 0.35),
    0 0 0 3px var(--shu);
}
.work-panel__frame {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--sumi);
  box-shadow: 0 30px 80px -24px rgba(13, 13, 13, 0.38);
}
.work-panel__frame canvas {
  width: 100%; height: 100%;
  object-fit: cover;
}
.work-panel__frame::after {
  content: "";
  position: absolute; inset: 0;
  box-shadow: inset 0 0 0 1px rgba(13, 13, 13, 0.10);
  pointer-events: none;
}
.work-panel__seal {
  position: absolute; left: 0.8rem; top: 0.8rem;
  font-family: var(--f-jp);
  font-size: 0.85rem;
  color: var(--kinari);
  background: rgba(13, 13, 13, 0.55);
  border: 1px solid rgba(232, 226, 213, 0.25);
  padding: 0.15em 0.55em;
}

/* Rótulo gigante superpuesto + fantasmas de obras vecinas */
.works__overlay {
  position: absolute; inset: 0;
  z-index: 5;
  pointer-events: none;
}
.works__current {
  position: absolute; left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  text-align: center;
}
.works__bigname {
  font-family: var(--f-display);
  font-weight: 500;
  font-size: clamp(2.8rem, 9.5vw, 8.5rem);
  letter-spacing: 0.05em;
  line-height: 1;
  white-space: nowrap;
  color: var(--sumi);
  text-shadow: 0 2px 26px rgba(232, 226, 213, 0.85);
}
.works__bigname .char { display: inline-block; will-change: transform; }
.works__bigsub {
  margin-top: 1rem;
  font-size: 0.7rem;
  letter-spacing: 0.34em;
  color: rgba(13, 13, 13, 0.62);
  text-shadow: 0 1px 12px rgba(232, 226, 213, 0.9);
}
.works__ghost {
  position: absolute; left: 50%;
  transform: translateX(-50%);
  font-family: var(--f-display);
  font-weight: 500;
  font-size: clamp(2.8rem, 9.5vw, 8.5rem);
  letter-spacing: 0.05em;
  line-height: 1;
  white-space: nowrap;
  color: transparent;
  -webkit-text-stroke: 1px rgba(13, 13, 13, 0.22);
}
.works__ghost--prev { top: -0.32em; }
.works__ghost--next { bottom: -0.32em; }

/* Insignia circular giratoria */
.works__badge {
  position: absolute; left: var(--pad-x); top: clamp(0.5rem, 3vh, 1.6rem);
  z-index: 6;
  width: clamp(80px, 8.5vw, 112px);
  color: var(--sumi);
  opacity: 0.8;
  pointer-events: none;
}
.works__badge svg {
  width: 100%; height: auto;
  overflow: visible;
  animation: works-badge-spin 14s linear infinite;
}
.works__badge text {
  font-family: var(--f-body);
  font-size: 11px;
  letter-spacing: 3.2px;
  fill: currentColor;
}
.works__badge circle { fill: var(--shu); }
@keyframes works-badge-spin { to { transform: rotate(360deg); } }

/* ── Detalle de obra (overlay a pantalla completa) ──────────── */
.work-detail {
  position: fixed; inset: 0;
  z-index: 150;
  display: grid; place-items: center;
  visibility: hidden; opacity: 0;
}
.work-detail__backdrop {
  position: absolute; inset: 0;
  z-index: 1;
  background: rgba(13, 13, 13, 0.72);
  backdrop-filter: blur(8px);
}
.work-detail__panel {
  position: relative;
  z-index: 2;
  width: 100vw;
  height: 100svh;
  overflow-y: auto;
  background: var(--kinari);
  color: var(--sumi);
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  box-shadow: 0 40px 120px rgba(13, 13, 13, 0.55);
  outline: none;
}
/* Pinceladas de tinta que barren la pantalla al abrir/cerrar el detalle */
.work-detail__veil {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  transform: translateY(110vh); /* oculta bajo el borde inferior */
  will-change: transform;
}
.work-detail__veil--shu { z-index: 3; }
.work-detail__veil--ink { z-index: 4; }
.work-detail__close {
  position: absolute; top: 0.9rem; right: 1.1rem;
  z-index: 3;
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  color: var(--kinari);
  background: var(--sumi);
  padding: 0.55rem 0.9rem;
  transition: background 0.3s;
}
.work-detail__close:hover { background: var(--shu); }
.work-detail__frame {
  position: relative;
  min-height: 100%;
  background: var(--sumi);
}
.work-detail__frame canvas {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}
.work-detail__seal {
  position: absolute; right: 1.1rem; bottom: 1.1rem;
  width: 52px; height: 52px;
  display: grid; place-items: center;
  background: var(--shu);
  color: var(--kinari);
  font-family: var(--f-jp);
  font-size: 1.3rem;
  box-shadow: 0 6px 18px rgba(200, 68, 44, 0.45);
}
.work-detail__body { padding: clamp(1.6rem, 4vw, 3rem); }
.work-detail__num {
  font-family: var(--f-jp);
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  color: transparent;
  -webkit-text-stroke: 1px rgba(13, 13, 13, 0.3);
}
.work-detail__title {
  margin-top: 0.4rem;
  font-family: var(--f-display);
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  font-weight: 500;
  line-height: 1.1;
  overflow: hidden; /* los caracteres entran desde abajo */
}
.work-detail__title .char { display: inline-block; will-change: transform; }
.work-detail__jp {
  margin-top: 0.5rem;
  font-family: var(--f-jp);
  font-size: 0.85rem;
  letter-spacing: 0.3em;
  color: var(--shu);
}
.work-detail__desc {
  margin-top: 1.4rem;
  font-size: 0.95rem;
  line-height: 1.9;
  color: rgba(13, 13, 13, 0.72);
}
.work-detail__tags {
  margin-top: 1.4rem;
  display: flex; gap: 0.9rem; flex-wrap: wrap;
  font-size: 0.66rem;
  letter-spacing: 0.22em;
  color: rgba(13, 13, 13, 0.55);
}
.work-detail__tags span { border-bottom: 1px solid rgba(200, 68, 44, 0.5); padding-bottom: 2px; }
.work-detail__nav {
  margin-top: 2.2rem;
  display: flex; justify-content: space-between; gap: 1rem;
  border-top: 1px solid rgba(13, 13, 13, 0.14);
  padding-top: 1.2rem;
}
.work-detail__nav button {
  font-size: 0.72rem;
  letter-spacing: 0.26em;
  color: var(--sumi);
  transition: color 0.3s;
}
.work-detail__nav button:hover { color: var(--shu); }

/* ── 道 CAMINO ──────────────────────────────────────────────── */
.section--about {
  overflow: hidden;
  /* Sin fondo sólido: respira el lienzo WebGL de tinta, como en el hero */
  color: var(--kinari);
}

.about__grid {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(0, 2.2fr);
  gap: clamp(2rem, 6vw, 7rem);
  align-items: start;
}
.about__tategaki {
  display: flex; flex-direction: row-reverse; gap: clamp(1.2rem, 2.5vw, 2.4rem);
  justify-content: flex-start;
  padding-top: 1rem;
}
.about__tategaki p {
  writing-mode: vertical-rl;
  font-family: var(--f-jp);
  font-size: clamp(1.15rem, 2.1vw, 1.7rem);
  letter-spacing: 0.38em;
  color: var(--ink-faint);
}
.about__tategaki p { color: var(--ai-light); }
.about__tategaki p:first-child { color: var(--shu); }

.about__lead {
  font-family: var(--f-display);
  font-size: clamp(1.7rem, 3.4vw, 2.7rem);
  font-weight: 400;
  line-height: 1.25;
  color: var(--ink);
  margin-bottom: 1.8rem;
}
.about__body > p:not(.about__lead) {
  max-width: 62ch;
  color: var(--ink-faint);
  margin-bottom: 1.3rem;
  font-size: clamp(0.92rem, 1.3vw, 1.02rem);
}
.about__body em { font-style: normal; color: var(--kin); }

.about__principles {
  margin-top: 3.2rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1.4rem, 3vw, 3rem);
}
.about__principles li {
  border-top: 1px solid var(--line);
  padding-top: 1.2rem;
}
.about__principles b {
  font-family: var(--f-jp);
  font-weight: 500;
  font-size: 1.25rem;
  color: var(--ink);
  display: block;
  margin-bottom: 0.6rem;
}
.about__principles b span {
  font-family: var(--f-body);
  font-size: 0.68rem;
  letter-spacing: 0.3em;
  color: var(--ai-light);
  margin-left: 0.6rem;
  vertical-align: middle;
}
.about__principles p { font-size: 0.82rem; color: var(--ink-faint); line-height: 1.9; }

.about__stroke {
  position: absolute; right: -6vw; bottom: 4vh;
  width: clamp(240px, 30vw, 480px); height: clamp(240px, 30vw, 480px);
  background: radial-gradient(closest-side, rgba(200, 68, 44, 0.13), transparent 70%);
  border-radius: 50%;
  filter: blur(4px);
  pointer-events: none;
}

/* ── 響 RESONANCIA ──────────────────────────────────────────── */
.section--sound {
  background: var(--kinari);
  color: var(--sumi);
  padding-bottom: 0;
}
.skills {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  border-top: 1px solid rgba(13, 13, 13, 0.14);
  border-left: 1px solid rgba(13, 13, 13, 0.14);
}
.skill {
  position: relative;
  border-right: 1px solid rgba(13, 13, 13, 0.14);
  border-bottom: 1px solid rgba(13, 13, 13, 0.14);
  padding: clamp(1.6rem, 3vw, 2.6rem);
  overflow: hidden;
  transition: background 0.5s var(--ease-ink);
}
.skill::before {
  content: "";
  position: absolute; inset: 0;
  background: var(--sumi);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 0.55s var(--ease-out);
  z-index: 0;
}
.skill:hover::before, .skill.is-lit::before { transform: scaleY(1); }
.skill > * { position: relative; z-index: 1; }
.skill__note {
  font-family: var(--f-jp);
  font-size: 0.72rem;
  letter-spacing: 0.4em;
  color: var(--shu);
  display: block;
  margin-bottom: 1.1rem;
}
.skill__name {
  font-family: var(--f-display);
  font-size: clamp(1.3rem, 2vw, 1.7rem);
  font-weight: 500;
  transition: color 0.4s;
}
.skill__jp {
  font-family: var(--f-jp);
  font-size: 0.8rem;
  letter-spacing: 0.3em;
  color: rgba(13, 13, 13, 0.45);
  display: block;
  margin-top: 0.4rem;
  transition: color 0.4s;
}
.skill__level {
  margin-top: 1.4rem;
  height: 1px;
  background: rgba(13, 13, 13, 0.18);
  position: relative;
}
.skill__level i {
  position: absolute; inset: 0;
  background: var(--shu);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 1.2s var(--ease-out) 0.2s;
}
.skill.is-inview .skill__level i { transform: scaleX(var(--level, 0)); }
.skill:hover .skill__name, .skill.is-lit .skill__name { color: var(--kinari); }
.skill:hover .skill__jp, .skill.is-lit .skill__jp { color: rgba(232, 226, 213, 0.5); }

.sound__wave {
  margin-top: clamp(3rem, 8vh, 5rem);
  margin-inline: calc(var(--pad-x) * -1);
  height: clamp(140px, 24vh, 240px);
}
#wave-canvas { width: 100%; height: 100%; }

/* ── 結 CONTACTO ────────────────────────────────────────────── */
.section--contact {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  text-align: center;
  min-height: 100vh;
  overflow: hidden;
}
.contact__enso {
  position: absolute; inset: 0;
  display: grid; place-items: center;
  pointer-events: none;
}
.contact__enso svg {
  width: clamp(340px, 62vh, 720px);
  color: var(--shu);
  overflow: visible;
}
.contact__enso-path {
  stroke-dasharray: 560; stroke-dashoffset: 560;
  fill: none;
  filter: drop-shadow(0 0 10px rgba(200, 68, 44, 0.35));
}

.section--contact .chapter__num { border: 0; padding: 0; margin-bottom: 1.2rem; }
.contact__title {
  font-family: var(--f-display);
  font-weight: 400;
  font-size: clamp(2.8rem, 8vw, 6.4rem);
  line-height: 1.02;
  color: var(--kinari);
}
.contact__title span { display: block; overflow: hidden; }
.contact__title span:last-child { color: transparent; -webkit-text-stroke: 1px rgba(232, 226, 213, 0.7); }
.contact__lead {
  margin-top: 2rem;
  max-width: 42ch;
  color: var(--ink-faint);
  font-size: clamp(0.92rem, 1.4vw, 1.05rem);
}
.contact__mail {
  position: relative;
  display: inline-block;
  margin-top: clamp(6.5rem, 10vh, 8rem);
  font-family: var(--f-display);
  font-size: clamp(1.4rem, 3.4vw, 2.6rem);
  letter-spacing: 0.06em;
  color: var(--kinari);
  padding-bottom: 0.35em;
  transition: color 0.4s;
}
.contact__mail:hover { color: var(--shu); }
.contact__mail-underline {
  position: absolute; left: 0; bottom: 0;
  width: 100%; height: 0.5em;
  color: var(--shu);
  overflow: visible;
}
.contact__mail-underline path {
  stroke-dasharray: 70;
  stroke-dashoffset: 70;
  transition: stroke-dashoffset 0.8s var(--ease-out);
}
.contact__mail:hover .contact__mail-underline path { stroke-dashoffset: 0; }

/* Redes: círculos de trazo fino que evocan el ensō */
.contact__social {
  margin-top: clamp(2rem, 5vh, 3.2rem);
  display: flex; justify-content: center; gap: clamp(1.4rem, 3vw, 2.4rem);
}
.contact__social a {
  display: grid; place-items: center;
  width: 46px; height: 46px;
  color: var(--ink-faint);
  border: 1px solid var(--line);
  border-radius: 50%;
  transition:
    color 0.35s, border-color 0.35s,
    transform 0.45s var(--ease-out), box-shadow 0.35s;
}
.contact__social a:hover {
  color: var(--shu);
  border-color: var(--shu);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px -10px rgba(200, 68, 44, 0.45);
}
.contact__social svg { width: 20px; height: 20px; }

.contact__foot {
  position: absolute; left: var(--pad-x); right: var(--pad-x); bottom: 4vh;
  display: flex; justify-content: space-between; gap: 1.5rem; flex-wrap: wrap;
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  color: var(--ink-faint);
}

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 900px) {
  .site-head__nav a span { display: none; }
  .about__grid { grid-template-columns: 1fr; }
  .about__tategaki { order: 2; }
  .about__principles { grid-template-columns: 1fr; }
  .progress { display: none; }
  .hero__vertical { display: none; }
  .section--works { min-height: 640px; }
  .work-panel { width: min(86vw, 560px); }
  .works__scene { min-height: 320px; perspective: 850px; }
  .work-detail__panel { grid-template-columns: 1fr; }
  .work-detail__frame { aspect-ratio: 4 / 3; min-height: 0; }
  .contact__foot { justify-content: center; text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  .grain, .hero__scrollcue-line { animation: none; }
}