/* =========================================================
   和 — Japanese-style portfolio theme
   washi paper / sumi ink / shu (vermilion) / ai (indigo)
   ========================================================= */

:root {
  --washi: #f5f0e6;
  --washi-deep: #ebe3d3;
  --washi-card: #faf7f0;
  --sumi: #1e1b18;
  --sumi-soft: #45403a;
  --usuzumi: #847c72;
  --shu: #b7282e;
  --shu-deep: #8f1d22;
  --ai: #233a5e;
  --line: rgba(30, 27, 24, 0.14);
  --line-strong: rgba(30, 27, 24, 0.32);

  --f-mincho: "Shippori Mincho", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --f-gothic: "Zen Kaku Gothic New", "Hiragino Sans", "Yu Gothic", sans-serif;
  --f-latin: "Cormorant Garamond", "Shippori Mincho", serif;

  --header-h: 76px;
  --gutter: clamp(16px, 5vw, 64px);
  --max: 1160px;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--f-gothic);
  font-size: 16px;
  line-height: 1.9;
  letter-spacing: 0.04em;
  color: var(--sumi);
  background-color: var(--washi);
  /* washi fibre texture */
  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='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0.35 0 0 0 0 0.3 0 0 0 0 0.22 0 0 0 0.07 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  overflow-x: hidden;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  list-style: none;
}

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

/* ---------- shared parts ---------- */

.hanko {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  writing-mode: vertical-rl;
  width: 42px;
  height: 42px;
  border-radius: 6px;
  background: var(--shu);
  color: var(--washi);
  font-family: var(--f-mincho);
  font-weight: 800;
  font-size: 15px;
  line-height: 1;
  letter-spacing: 0.08em;
  box-shadow: inset 0 0 0 2px rgba(245, 240, 230, 0.35);
  transform: rotate(-4deg);
  flex-shrink: 0;
}

.hanko-lg {
  width: 64px;
  height: 64px;
  font-size: 22px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.9em;
  padding: 0.95em 2em;
  font-family: var(--f-mincho);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.12em;
  border: 1px solid var(--sumi);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  isolation: isolate;
  transition: color .4s var(--ease), border-color .4s var(--ease);
}

.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .5s var(--ease);
}

.btn:hover::before,
.btn:focus-visible::before {
  transform: scaleX(1);
  transform-origin: left;
}

.btn i {
  font-size: 0.8em;
  transition: transform .4s var(--ease);
}

.btn:hover i {
  transform: translateX(4px);
}

.btn-primary {
  background: var(--sumi);
  color: var(--washi);
}

.btn-primary::before {
  background: var(--shu);
}

.btn-primary:hover {
  border-color: var(--shu);
}

.btn-ghost {
  background: transparent;
  color: var(--sumi);
}

.btn-ghost::before {
  background: var(--sumi);
}

.btn-ghost:hover {
  color: var(--washi);
}

.tag {
  display: inline-block;
  padding: 0.2em 0.9em;
  border: 1px solid var(--shu);
  color: var(--shu);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.12em;
}

/* ---------- header ---------- */

.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--gutter);
  transition: background .4s var(--ease), box-shadow .4s var(--ease);
}

.header.scrolled {
  background: rgba(245, 240, 230, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 1px 0 var(--line);
}

.logo {
  display: flex;
  align-items: center;
  gap: 14px;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
}

.logo-jp {
  font-family: var(--f-mincho);
  font-weight: 600;
  font-size: 17px;
  letter-spacing: 0.2em;
}

.logo-en {
  font-family: var(--f-latin);
  font-style: italic;
  font-size: 13px;
  color: var(--usuzumi);
  letter-spacing: 0.1em;
}

.navbar ul {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.2vw, 34px);
}

.navbar a {
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1.4;
  position: relative;
  padding: 4px 0;
}

.navbar a span {
  font-family: var(--f-mincho);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.14em;
}

.navbar a small {
  font-family: var(--f-latin);
  font-style: italic;
  font-size: 11px;
  color: var(--usuzumi);
  letter-spacing: 0.12em;
}

.navbar a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -6px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--shu);
  transform: translateX(-50%) scale(0);
  transition: transform .3s var(--ease);
}

.navbar a:hover::after,
.navbar a.active::after {
  transform: translateX(-50%) scale(1);
}

.navbar a.nav-cta {
  padding: 8px 18px;
  background: var(--sumi);
  color: var(--washi);
  transition: background .3s var(--ease);
}

.navbar a.nav-cta small {
  color: rgba(245, 240, 230, 0.6);
}

.navbar a.nav-cta:hover {
  background: var(--shu);
}

.navbar a.nav-cta::after {
  display: none;
}

.navbar {
  margin-left: auto;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: clamp(16px, 2vw, 28px);
  position: relative;
  z-index: 2;
}

.lang-switch {
  display: flex;
  border: 1px solid var(--line-strong);
}

.lang-switch button {
  font-family: var(--f-mincho);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.08em;
  line-height: 1;
  padding: 8px 10px;
  border: 0;
  background: transparent;
  color: var(--usuzumi);
  cursor: pointer;
  transition: background .3s, color .3s;
}

.lang-switch button[aria-pressed="true"] {
  background: var(--sumi);
  color: var(--washi);
}

.lang-switch button:not([aria-pressed="true"]):hover {
  color: var(--shu);
}

.menu-btn {
  display: none;
  width: 44px;
  height: 44px;
  border: 0;
  background: transparent;
  cursor: pointer;
  position: relative;
  z-index: 2;
}

.menu-btn span {
  position: absolute;
  left: 10px;
  right: 10px;
  height: 1.5px;
  background: var(--sumi);
  transition: transform .35s var(--ease), top .35s var(--ease);
}

.menu-btn span:first-child {
  top: 17px;
}

.menu-btn span:last-child {
  top: 26px;
}

.menu-btn.open span:first-child {
  top: 21px;
  transform: rotate(30deg);
}

.menu-btn.open span:last-child {
  top: 21px;
  transform: rotate(-30deg);
}

/* ---------- hero ---------- */

.home {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-h) + 40px) var(--gutter) 140px;
  overflow: hidden;
}

.home-inner {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  align-items: center;
  gap: 40px;
}

.home-greeting {
  font-family: var(--f-mincho);
  font-size: 18px;
  color: var(--shu);
  letter-spacing: 0.4em;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.home-greeting::before {
  content: "";
  width: 40px;
  height: 1px;
  background: var(--shu);
}

.home-name {
  font-weight: normal;
  margin-bottom: 26px;
}

.home-name-jp {
  display: block;
  font-family: var(--f-mincho);
  font-weight: 800;
  font-size: clamp(44px, 7vw, 88px);
  line-height: 1.2;
  letter-spacing: 0.12em;
}

.home-name-suffix {
  display: block;
  margin-top: 4px;
  font-size: max(16px, 0.24em);
  font-weight: 600;
  letter-spacing: 0.3em;
  color: var(--sumi-soft);
}

.home-name-en {
  display: block;
  margin-top: 6px;
  font-family: var(--f-latin);
  font-style: italic;
  font-size: clamp(18px, 2vw, 24px);
  color: var(--usuzumi);
  letter-spacing: 0.2em;
}

.home-role {
  font-family: var(--f-mincho);
  font-size: clamp(17px, 1.8vw, 21px);
  margin-bottom: 20px;
}

.role-rotator {
  display: inline-block;
  margin: 0 0.3em;
  padding: 0 0.2em;
  color: var(--shu);
  font-weight: 600;
  border-bottom: 1px solid var(--shu);
  transition: opacity .4s var(--ease), transform .4s var(--ease);
}

.role-rotator.out {
  opacity: 0;
  transform: translateY(6px);
}

.home-lead {
  max-width: 34em;
  color: var(--sumi-soft);
  font-size: 15px;
  margin-bottom: 36px;
}

.home-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.home-visual {
  position: relative;
  aspect-ratio: 1;
  width: min(100%, 460px);
  justify-self: center;
  display: flex;
  align-items: center;
  justify-content: center;
  container-type: inline-size;
}

.enso {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.enso path {
  fill: none;
  stroke: var(--sumi);
  stroke-width: 16;
  stroke-linecap: round;
  opacity: 0.88;
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
  animation: enso-draw 2.4s .3s var(--ease) forwards;
}

@keyframes enso-draw {
  to {
    stroke-dashoffset: 0;
  }
}

.home-catch {
  position: relative;
  writing-mode: vertical-rl;
  font-family: var(--f-mincho);
  font-weight: 600;
  font-size: 5.2cqw;
  line-height: 1.9;
  letter-spacing: 0.24em;
}

.home-catch span {
  display: block;
  white-space: nowrap;
}

.home-catch span+span {
  margin-right: 0.5em;
}

.home-catch span:last-child {
  padding-top: 1.2em;
}

.home-seal {
  position: absolute;
  right: 14%;
  bottom: 16%;
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--shu);
  border-radius: 4px;
  color: var(--shu);
  font-family: var(--f-mincho);
  font-weight: 800;
  font-size: 22px;
  transform: rotate(6deg);
  opacity: 0;
  animation: seal-in .5s 2.4s var(--ease) forwards;
}

@keyframes seal-in {
  from {
    opacity: 0;
    transform: rotate(6deg) scale(1.6);
  }

  to {
    opacity: 0.9;
    transform: rotate(6deg) scale(1);
  }
}

.home-socials {
  position: absolute;
  left: calc(var(--gutter) / 2 - 2px);
  bottom: 140px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.home-socials::after {
  content: "";
  width: 1px;
  height: 60px;
  background: var(--line-strong);
}

.home-socials a {
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  font-size: 17px;
  color: var(--sumi-soft);
  transition: color .3s, transform .3s;
}

.home-socials a:hover {
  color: var(--shu);
  transform: translateY(-2px);
}

.home-socials img {
  width: 18px;
  height: 18px;
  filter: grayscale(1) brightness(.4);
}

.home-scroll {
  position: absolute;
  right: var(--gutter);
  bottom: 120px;
  writing-mode: vertical-rl;
  font-family: var(--f-latin);
  font-style: italic;
  font-size: 13px;
  letter-spacing: 0.3em;
  color: var(--usuzumi);
  display: flex;
  align-items: center;
  gap: 12px;
}

.home-scroll::after {
  content: "";
  width: 1px;
  height: 70px;
  background: linear-gradient(var(--sumi) 50%, transparent 50%);
  background-size: 1px 200%;
  animation: scroll-line 2s linear infinite;
}

@keyframes scroll-line {
  from {
    background-position: 0 100%;
  }

  to {
    background-position: 0 -100%;
  }
}

/* seigaiha (青海波) wave band */
.wave-band,
.footer::before {
  --wb: var(--washi);
  --wl: rgba(35, 58, 94, 0.16);
  background-color: var(--wb);
  background-image:
    radial-gradient(circle at 100% 150%, var(--wb) 24%, var(--wl) 24%, var(--wl) 26%, var(--wb) 26%, var(--wb) 36%, var(--wl) 36%, var(--wl) 38%, transparent 38%),
    radial-gradient(circle at 0 150%, var(--wb) 24%, var(--wl) 24%, var(--wl) 26%, var(--wb) 26%, var(--wb) 36%, var(--wl) 36%, var(--wl) 38%, transparent 38%),
    radial-gradient(circle at 50% 100%, var(--wl) 10%, var(--wb) 10%, var(--wb) 23%, var(--wl) 23%, var(--wl) 25%, var(--wb) 25%, var(--wb) 43%, var(--wl) 43%, var(--wl) 45%, var(--wb) 45%, var(--wb) 63%, var(--wl) 63%, var(--wl) 65%, transparent 65%),
    radial-gradient(circle at 100% 50%, var(--wl) 5%, var(--wb) 5%, var(--wb) 15%, var(--wl) 15%, var(--wl) 17%, var(--wb) 17%, var(--wb) 29%, var(--wl) 29%, var(--wl) 31%, var(--wb) 31%, var(--wb) 44%, var(--wl) 44%, var(--wl) 46%, transparent 46%),
    radial-gradient(circle at 0 50%, var(--wl) 5%, var(--wb) 5%, var(--wb) 15%, var(--wl) 15%, var(--wl) 17%, var(--wb) 17%, var(--wb) 29%, var(--wl) 29%, var(--wl) 31%, var(--wb) 31%, var(--wb) 44%, var(--wl) 44%, var(--wl) 46%, transparent 46%);
  background-size: 64px 32px;
}

.wave-band {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 96px;
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 85%);
  mask-image: linear-gradient(to bottom, transparent, #000 85%);
}

/* ---------- section scaffolding ---------- */

.section {
  position: relative;
  max-width: calc(var(--max) + var(--gutter) * 2);
  margin: 0 auto;
  padding: clamp(72px, 9vw, 120px) var(--gutter);
}

.sec-head {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  column-gap: 22px;
  align-items: end;
  margin-bottom: clamp(44px, 6vw, 72px);
}

.sec-num {
  grid-row: 1 / 3;
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  border: 1px solid var(--shu);
  color: var(--shu);
  font-family: var(--f-mincho);
  font-weight: 600;
  font-size: 28px;
  line-height: 1;
}

.sec-title {
  font-family: var(--f-mincho);
  font-weight: 800;
  font-size: clamp(28px, 3.6vw, 40px);
  line-height: 1.3;
  letter-spacing: 0.16em;
}

.sec-en {
  font-family: var(--f-latin);
  font-style: italic;
  font-size: 16px;
  color: var(--usuzumi);
  letter-spacing: 0.24em;
  display: flex;
  align-items: center;
  gap: 14px;
}

.sec-en::after {
  content: "";
  flex: 1;
  max-width: 240px;
  height: 1px;
  background: var(--line-strong);
}

.sec-more {
  margin-top: 56px;
  text-align: center;
}

/* ---------- about ---------- */

.about-row {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(36px, 6vw, 88px);
  align-items: start;
}

.about-photo {
  position: relative;
  max-width: 400px;
  margin: 0 auto;
  width: 100%;
}

.about-photo::before {
  content: "";
  position: absolute;
  inset: 18px -18px -18px 18px;
  border: 1px solid var(--shu);
  z-index: -1;
}

.about-photo img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  filter: saturate(.85) contrast(1.02);
}

.about-name {
  font-family: var(--f-mincho);
  font-weight: 800;
  font-size: clamp(26px, 3vw, 34px);
  letter-spacing: 0.14em;
  margin-bottom: 12px;
}

.about-name small {
  font-family: var(--f-latin);
  font-style: italic;
  font-weight: 500;
  font-size: 0.5em;
  color: var(--usuzumi);
  letter-spacing: 0.14em;
  margin-left: 0.6em;
}

.about-body .tag {
  margin-bottom: 26px;
}

.about-text {
  color: var(--sumi-soft);
  margin-bottom: 1.2em;
  text-align: justify;
}

.profile-table {
  margin-top: 30px;
  border-top: 1px solid var(--sumi);
}

.profile-table div {
  display: grid;
  grid-template-columns: 7em 1fr;
  gap: 16px;
  padding: 14px 4px;
  border-bottom: 1px solid var(--line);
}

.profile-table dt {
  font-family: var(--f-mincho);
  font-weight: 600;
  letter-spacing: 0.2em;
}

.profile-table dd {
  color: var(--sumi-soft);
  overflow-wrap: anywhere;
}

.profile-table a {
  border-bottom: 1px solid var(--line-strong);
  transition: color .3s, border-color .3s;
}

.profile-table a:hover {
  color: var(--shu);
  border-color: var(--shu);
}

/* ---------- services ---------- */

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.service {
  position: relative;
  overflow: hidden;
  background: var(--washi-card);
  padding: 40px 30px 34px;
  transition: background .4s var(--ease);
}

.service:hover {
  background: #fff;
}

.service-glyph {
  position: absolute;
  right: -10px;
  bottom: -34px;
  font-family: var(--f-mincho);
  font-weight: 800;
  font-size: 150px;
  line-height: 1;
  color: var(--sumi);
  opacity: 0.045;
  pointer-events: none;
  transition: opacity .4s var(--ease), transform .6s var(--ease);
}

.service:hover .service-glyph {
  opacity: 0.09;
  transform: translateY(-6px);
}

.service-num {
  display: block;
  font-family: var(--f-latin);
  font-style: italic;
  font-size: 22px;
  color: var(--shu);
  margin-bottom: 10px;
}

.service h3 {
  font-family: var(--f-mincho);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: 0.1em;
  margin-bottom: 14px;
}

.service p {
  position: relative;
  font-size: 14px;
  color: var(--sumi-soft);
  margin-bottom: 20px;
}

.service-tags {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.service-tags li {
  font-size: 12px;
  padding: 1px 10px;
  border: 1px solid var(--line-strong);
  color: var(--sumi-soft);
  letter-spacing: 0.04em;
}

/* ---------- skills ---------- */

.skills {
  max-width: none;
  background: var(--washi-deep);
}

.skills>* {
  max-width: var(--max);
  margin-left: auto;
  margin-right: auto;
}

.skills .sec-head {
  margin-bottom: clamp(44px, 6vw, 72px);
}

/* one full-width row per category: heading on top, skills in a line underneath */
.skills-grid {
  display: flex;
  flex-direction: column;
}

.skill-group {
  padding: clamp(22px, 2.6vw, 30px) 0;
  border-top: 1px solid var(--line-strong);
}

.skill-group:last-child {
  border-bottom: 1px solid var(--line-strong);
}

.skill-group-title {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 14px;
  margin-bottom: 16px;
  font-family: var(--f-mincho);
  font-weight: 800;
  font-size: 18px;
  letter-spacing: 0.12em;
}

.skill-group-num {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border: 1px solid var(--shu);
  color: var(--shu);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0;
}

.skill-group-title small {
  font-family: var(--f-latin);
  font-style: italic;
  font-weight: 500;
  font-size: 14px;
  letter-spacing: 0.12em;
  color: var(--usuzumi);
}

.skill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.skill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px 7px 9px;
  background: var(--washi);
  border: 1px solid var(--line);
  transition: border-color .3s var(--ease), transform .3s var(--ease);
}

.skill:hover {
  border-color: var(--shu);
  transform: translateY(-2px);
}

.skill img,
.skill-initial {
  width: 20px;
  height: 20px;
  object-fit: contain;
  flex-shrink: 0;
}

/* skills without a logo get a lettered square */
.skill-initial {
  display: grid;
  place-items: center;
  background: var(--sumi);
  color: var(--washi);
  font-family: var(--f-latin);
  font-size: 13px;
  line-height: 1;
}

.skill span {
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

/* ---------- works ---------- */

.work-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: clamp(28px, 4vw, 48px) clamp(20px, 3vw, 36px);
}

.work-card {
  display: flex;
  flex-direction: column;
}

.work-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--washi-deep);
  border: 1px solid var(--line);
  margin-bottom: 18px;
}

.work-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
  transition: transform .8s var(--ease), filter .5s var(--ease);
}

.work-card:hover .work-thumb img {
  transform: scale(1.05);
}

.work-num {
  position: absolute;
  top: 0;
  left: 0;
  padding: 4px 12px;
  background: var(--sumi);
  color: var(--washi);
  font-family: var(--f-latin);
  font-style: italic;
  font-size: 15px;
}

.work-card h3 {
  font-family: var(--f-mincho);
  font-weight: 800;
  font-size: 19px;
  letter-spacing: 0.08em;
  line-height: 1.5;
  margin-bottom: 8px;
}

.work-card p {
  font-size: 14px;
  color: var(--sumi-soft);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 14px;
}

.work-links {
  margin-top: auto;
  display: flex;
  gap: 22px;
}

.work-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--f-mincho);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.1em;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--line-strong);
  transition: color .3s, border-color .3s;
}

.work-links a:hover {
  color: var(--shu);
  border-color: var(--shu);
}

/* ---------- timeline (年表) ---------- */

.timeline {
  position: relative;
  max-width: 900px;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 10px;
  bottom: 10px;
  left: 13.5em;
  width: 1px;
  background: var(--line-strong);
}

.timeline li {
  position: relative;
  display: grid;
  grid-template-columns: 12em 1fr;
  gap: 3em;
  padding-bottom: 40px;
}

.timeline li::before {
  content: "";
  position: absolute;
  top: 9px;
  left: calc(13.5em - 5px);
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--washi);
  border: 2px solid var(--shu);
}

.timeline li:first-child::before {
  background: var(--shu);
}

.tl-date {
  font-family: var(--f-mincho);
  font-weight: 600;
  font-size: 15px;
  color: var(--shu);
  text-align: right;
  letter-spacing: 0.06em;
  line-height: 1.8;
}

.tl-body h3 {
  font-family: var(--f-mincho);
  font-weight: 800;
  font-size: 18px;
  letter-spacing: 0.08em;
  line-height: 1.6;
  margin-bottom: 6px;
}

.tl-body p {
  font-size: 14px;
  color: var(--sumi-soft);
}

.experience .sec-more {
  text-align: left;
  margin-top: 16px;
  padding-left: calc(15em);
}

/* ---------- flow ---------- */

.flow {
  max-width: none;
  background: var(--sumi);
  color: var(--washi);
}

.flow>* {
  max-width: var(--max);
  margin-left: auto;
  margin-right: auto;
}

.flow .sec-en {
  color: rgba(245, 240, 230, 0.55);
}

.flow .sec-en::after {
  background: rgba(245, 240, 230, 0.3);
}

.flow-list {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  counter-reset: flow;
}

.flow-list li {
  position: relative;
  padding: 0 22px;
  border-left: 1px solid rgba(245, 240, 230, 0.18);
}

.flow-list li:last-child {
  border-right: 1px solid rgba(245, 240, 230, 0.18);
}

.flow-step {
  display: block;
  font-family: var(--f-mincho);
  font-weight: 800;
  font-size: 40px;
  line-height: 1;
  color: var(--shu);
  margin-bottom: 18px;
  filter: brightness(1.25);
}

.flow-list h3 {
  font-family: var(--f-mincho);
  font-weight: 600;
  font-size: 17px;
  letter-spacing: 0.12em;
  margin-bottom: 10px;
}

.flow-list p {
  font-size: 13px;
  line-height: 1.85;
  color: rgba(245, 240, 230, 0.7);
}

/* ---------- contact ---------- */

.contact-row {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(40px, 6vw, 88px);
  align-items: start;
}

.contact-lead {
  font-family: var(--f-mincho);
  font-size: clamp(17px, 1.7vw, 19px);
  line-height: 2.1;
  letter-spacing: 0.06em;
  margin-bottom: 32px;
}

.contact-list li {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  color: var(--sumi-soft);
  overflow-wrap: anywhere;
}

.contact-list i {
  width: 18px;
  text-align: center;
  color: var(--shu);
}

.contact-list a:hover {
  color: var(--shu);
}

.contact-form {
  background: var(--washi-card);
  border: 1px solid var(--line);
  padding: clamp(24px, 4vw, 44px);
  display: grid;
  gap: 24px;
}

.field {
  display: grid;
  gap: 6px;
}

.field>span {
  font-family: var(--f-mincho);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.12em;
  display: flex;
  align-items: center;
  gap: 10px;
}

.field em {
  font-style: normal;
  font-family: var(--f-gothic);
  font-weight: 500;
  font-size: 11px;
  padding: 0 7px;
  background: var(--shu);
  color: var(--washi);
  letter-spacing: 0.08em;
}

.field input,
.field textarea {
  width: 100%;
  font: inherit;
  font-size: 15px;
  color: var(--sumi);
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line-strong);
  padding: 8px 2px;
  border-radius: 0;
  transition: border-color .3s;
}

.field textarea {
  resize: vertical;
  min-height: 120px;
}

.field input:focus,
.field textarea:focus {
  outline: none;
  border-bottom-color: var(--shu);
  box-shadow: 0 1px 0 var(--shu);
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
}

.form-actions .btn {
  font-size: 15px;
}

.form-actions .btn:disabled {
  opacity: .6;
  cursor: wait;
}

.form-status {
  font-size: 14px;
  color: var(--sumi-soft);
}

.form-status.error {
  color: var(--shu);
}

/* ---------- footer ---------- */

.footer {
  position: relative;
  background: var(--sumi);
  color: rgba(245, 240, 230, 0.75);
  padding: 120px var(--gutter) 28px;
  overflow: hidden;
}

.footer::before {
  content: "";
  --wb: var(--sumi);
  --wl: rgba(245, 240, 230, 0.07);
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 70px;
  -webkit-mask-image: linear-gradient(to top, transparent, #000);
  mask-image: linear-gradient(to top, transparent, #000);
}

.footer-inner {
  position: relative;
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(245, 240, 230, 0.15);
}

.footer-brand {
  display: flex;
  gap: 22px;
  align-items: flex-start;
}

.footer h3 {
  font-family: var(--f-mincho);
  font-weight: 600;
  font-size: 18px;
  color: var(--washi);
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}

.footer h4 {
  font-family: var(--f-mincho);
  font-weight: 600;
  font-size: 15px;
  color: var(--washi);
  letter-spacing: 0.16em;
  margin-bottom: 14px;
}

.footer p {
  font-size: 14px;
}

.footer-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-content: start;
  gap: 4px 16px;
}

.footer-links h4 {
  grid-column: 1 / -1;
}

.footer-links a {
  font-size: 14px;
  transition: color .3s;
}

.footer-links a:hover {
  color: var(--washi);
}

.footer-contact p {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 6px;
  overflow-wrap: anywhere;
}

.footer-contact i {
  color: var(--shu);
  filter: brightness(1.3);
}

.share {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.share a {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(245, 240, 230, 0.25);
  font-size: 16px;
  transition: background .3s, border-color .3s, color .3s;
}

.share a:hover {
  background: var(--shu);
  border-color: var(--shu);
  color: var(--washi);
}

.share img {
  width: 18px;
  height: 18px;
}

.credit {
  position: relative;
  text-align: center;
  padding-top: 24px;
  font-family: var(--f-latin);
  font-size: 14px !important;
  letter-spacing: 0.14em;
}

.credit a:hover {
  color: var(--washi);
}

/* ---------- scroll top ---------- */

#scroll-top {
  position: fixed;
  right: 20px;
  bottom: -80px;
  z-index: 90;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  background: var(--shu);
  color: var(--washi);
  font-size: 20px;
  transition: bottom .4s var(--ease), background .3s;
}

#scroll-top.active {
  bottom: 96px;
}

#scroll-top:hover {
  background: var(--sumi);
}

/* ---------- live chat launcher ---------- */

#chat-launcher {
  position: fixed;
  left: 20px;
  bottom: 20px;
  z-index: 90;
  display: flex;
  align-items: stretch;
  padding: 0;
  border: 1px solid var(--sumi);
  background: var(--sumi);
  color: var(--washi);
  cursor: pointer;
  overflow: hidden;
  isolation: isolate;
  box-shadow: 0 10px 28px -14px rgba(30, 27, 24, 0.6);
  animation: chat-launcher-in .8s var(--ease) both;
  transition: opacity .3s var(--ease), transform .4s var(--ease);
}

#chat-launcher[hidden] {
  display: none;
}

/* sumi → shu wipe, same as .btn */
#chat-launcher::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--shu);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .5s var(--ease);
}

#chat-launcher:hover::before,
#chat-launcher:focus-visible::before {
  transform: scaleX(1);
  transform-origin: left;
}

#chat-launcher.is-open {
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
}

.chat-launcher-seal {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  background: var(--shu);
  font-size: 19px;
  transition: background .5s var(--ease);
}

#chat-launcher:hover .chat-launcher-seal,
#chat-launcher:focus-visible .chat-launcher-seal {
  background: var(--shu-deep);
}

/* label is collapsed to zero width and slides out on hover / keyboard focus */
/* waiting for Tawk to finish loading after a click */
#chat-launcher.is-loading {
  cursor: progress;
}

#chat-launcher.is-loading .chat-launcher-seal i::before {
  content: "\f110"; /* fa-spinner */
}

#chat-launcher.is-loading .chat-launcher-seal i {
  animation: chat-launcher-spin 1s linear infinite;
}

@keyframes chat-launcher-spin {
  to {
    transform: rotate(360deg);
  }
}

.chat-launcher-text {
  display: grid;
  grid-template-columns: minmax(0, 0fr);
  overflow: hidden;
  transition: grid-template-columns .5s var(--ease);
}

#chat-launcher:hover .chat-launcher-text,
#chat-launcher:focus-visible .chat-launcher-text {
  grid-template-columns: minmax(0, 1fr);
}

.chat-launcher-label {
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 2px;
  padding: 8px 20px 8px 16px;
  white-space: nowrap;
  text-align: left;
  line-height: 1.2;
  opacity: 0;
  transform: translateX(-10px);
  transition: opacity .3s var(--ease), transform .5s var(--ease);
}

#chat-launcher:hover .chat-launcher-label,
#chat-launcher:focus-visible .chat-launcher-label {
  opacity: 1;
  transform: none;
  transition-delay: .1s;
}

.chat-launcher-label > span {
  font-family: var(--f-mincho);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.12em;
}

.chat-launcher-text small {
  font-family: var(--f-latin);
  font-style: italic;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: rgba(245, 240, 230, 0.7);
}

.chat-launcher-badge {
  position: absolute;
  top: 4px;
  left: 38px;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  border-radius: 9px;
  background: var(--washi);
  color: var(--shu);
  font-size: 11px;
  font-weight: 700;
  line-height: 18px;
  text-align: center;
}

.chat-launcher-badge:empty {
  display: none;
}

@keyframes chat-launcher-in {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
}

/* ---------- reveal ---------- */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 1s var(--ease), transform 1s var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

:focus-visible {
  outline: 2px solid var(--shu);
  outline-offset: 3px;
}

/* ---------- responsive ---------- */

/* ---------- English typography ---------- */

html[lang="en"] body {
  letter-spacing: 0.01em;
  line-height: 1.75;
}

html[lang="en"] :is(.sec-title, .home-name-jp, .logo-jp, .about-name, .service h3, .tl-body h3,
  .flow-list h3, .work-card h3, .contact-lead, .footer h3, .footer h4, .profile-table dt,
  .field>span, .navbar a span, .btn, .work-links a, .home-greeting, .home-name-suffix) {
  letter-spacing: 0.03em;
}

html[lang="en"] .home-greeting {
  letter-spacing: 0.12em;
}

html[lang="en"] .home-name-jp {
  font-size: clamp(42px, 6.4vw, 84px);
  line-height: 1.1;
}

html[lang="en"] .home-name-suffix {
  margin-top: 14px;
  font-size: max(16px, 0.26em);
}

/* sub-labels show Japanese in English mode: no faux italics */
html[lang="en"] :is(.sec-en, .navbar a small, .logo-en, .home-name-en, .about-name small) {
  font-family: var(--f-mincho);
  font-style: normal;
  letter-spacing: 0.2em;
}

html[lang="en"] .home-name-en {
  font-size: clamp(16px, 1.6vw, 20px);
}

html[lang="en"] .home-catch {
  writing-mode: horizontal-tb;
  text-align: center;
  font-size: 6.4cqw;
  line-height: 1.5;
  letter-spacing: 0.02em;
}

html[lang="en"] .home-catch span,
html[lang="en"] .home-catch span+span {
  margin: 0;
  padding: 0;
}

html[lang="en"] .home-catch span:last-child {
  font-style: italic;
  color: var(--shu);
}

html[lang="en"] .about-text {
  text-align: left;
}

@media (max-width: 1080px) {
  .flow-list {
    grid-template-columns: repeat(3, 1fr);
    row-gap: 40px;
  }

  .flow-list li:nth-child(3) {
    border-right: 1px solid rgba(245, 240, 230, 0.18);
  }
}

@media (max-width: 960px) {
  :root {
    --header-h: 64px;
  }

  .menu-btn {
    display: block;
  }

  .header-actions {
    margin-left: auto;
  }

  .navbar {
    position: fixed;
    inset: 0;
    background: var(--washi);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity .4s var(--ease), visibility .4s;
  }

  .navbar.nav-toggle {
    opacity: 1;
    visibility: visible;
  }

  .navbar ul {
    flex-direction: column;
    gap: 22px;
  }

  .navbar a span {
    font-size: 20px;
  }

  .home-inner {
    grid-template-columns: 1fr;
  }

  .home-visual {
    order: -1;
    width: min(70vw, 300px);
  }

  .home-socials {
    position: static;
    flex-direction: row;
    margin-top: 32px;
  }

  .home-socials::after {
    display: none;
  }

  .home {
    flex-direction: column;
    align-items: stretch;
    justify-content: center;
  }

  .home-scroll {
    display: none;
  }

  .about-row,
  .contact-row {
    grid-template-columns: 1fr;
  }

  .about-photo {
    max-width: 320px;
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 15px;
  }

  .logo-en {
    display: none;
  }

  .home {
    padding-bottom: 110px;
  }

  .home-socials {
    flex-wrap: wrap;
  }

  .sec-head {
    column-gap: 16px;
  }

  .sec-num {
    width: 52px;
    height: 52px;
    font-size: 22px;
  }

  .timeline::before {
    left: 5px;
  }

  .timeline li {
    grid-template-columns: 1fr;
    gap: 4px;
    padding-left: 30px;
  }

  .timeline li::before {
    left: 0;
  }

  .tl-date {
    text-align: left;
  }

  .experience .sec-more {
    padding-left: 30px;
  }

  .work-grid {
    grid-template-columns: 1fr;
  }

  .flow-list {
    grid-template-columns: 1fr;
    row-gap: 0;
  }

  .flow-list li,
  .flow-list li:last-child,
  .flow-list li:nth-child(3) {
    display: grid;
    grid-template-columns: 56px 1fr;
    column-gap: 12px;
    border: 0;
    border-top: 1px solid rgba(245, 240, 230, 0.18);
    padding: 22px 0;
  }

  .flow-step {
    grid-row: 1 / 3;
    margin: 0;
  }


  .footer-inner {
    grid-template-columns: 1fr;
  }

  .footer-brand {
    flex-direction: column;
  }

  .contact-lead br {
    display: none;
  }

  /* icon-only on phones; same footprint as #scroll-top */
  #chat-launcher {
    left: 16px;
    bottom: 16px;
  }

  .chat-launcher-seal {
    width: 46px;
    height: 46px;
  }

  .chat-launcher-text {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-delay: 0s !important;
    transition-duration: .01ms !important;
  }

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