:root {
  --color-ink: #124c72;
  --color-ink-strong: #082f52;
  --color-text: #334e68;
  --color-muted: #60758b;
  --color-teal: #159ca3;
  --color-teal-dark: #0c747b;
  --color-coral: #ef654f;
  --color-coral-soft: #fff0ec;
  --color-ice: #eef8fb;
  --color-ice-strong: #d9f0f3;
  --color-sky-soft: #eef4ff;
  --color-line: #aecddd;
  --color-line-soft: #d9e8ef;
  --color-white: #ffffff;
  --color-focus: #ef654f;
  --shadow-soft: 0 18px 48px rgb(8 47 82 / 11%);
  --shadow-menu: 0 22px 54px rgb(8 47 82 / 16%);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Yu Gothic",
    YuGothic, "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  --font-mono: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  --container: 1200px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --radius-sm: 0.35rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --transition: 180ms ease;
}

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

html {
  color-scheme: light;
  scroll-behavior: smooth;
  scroll-padding-top: 1rem;
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  color: var(--color-text);
  background: var(--color-white);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.8;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

img,
svg,
video,
canvas {
  display: block;
  max-width: 100%;
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

a {
  color: inherit;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.22em;
}

a:hover {
  text-decoration-color: var(--color-teal);
}

:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 4px;
}

::selection {
  color: var(--color-white);
  background: var(--color-ink);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  color: var(--color-ink-strong);
  line-height: 1.35;
  line-break: strict;
  letter-spacing: 0.02em;
  overflow-wrap: normal;
  text-wrap: balance;
  word-break: auto-phrase;
}

h1 {
  font-size: clamp(2.4rem, 5.8vw, 5.35rem);
}

h2 {
  font-size: clamp(2rem, 4vw, 3.6rem);
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.75rem);
}

p {
  max-width: 47rem;
}

[hidden] {
  display: none !important;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.7rem 1rem;
  color: var(--color-white);
  background: var(--color-ink);
  border-radius: var(--radius-sm);
  transform: translateY(-160%);
  transition: transform var(--transition);
}

.skip-link:focus {
  transform: translateY(0);
}

.container {
  width: min(100% - (var(--gutter) * 2), var(--container));
  margin-inline: auto;
}

.section {
  position: relative;
  padding-block: clamp(5rem, 9vw, 8.5rem);
  scroll-margin-top: 1rem;
}

#services-heading,
#works-heading {
  scroll-margin-top: 1rem;
}

#services-heading:focus,
#works-heading:focus {
  outline: none;
}

.section--ice {
  background: var(--color-ice);
}

.section-heading {
  margin-bottom: clamp(2.5rem, 5vw, 4.5rem);
}

.section-heading--center {
  text-align: center;
}

.section-heading--center p {
  margin-inline: auto;
}

.section-label {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  color: var(--color-teal-dark);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.section-label::before {
  width: 3rem;
  height: 1px;
  background: var(--color-line);
  content: "";
}

.section-heading--center .section-label {
  justify-content: center;
}

.section-heading--center .section-label::after {
  width: 3rem;
  height: 1px;
  background: var(--color-line);
  content: "";
}

.lead {
  color: var(--color-muted);
  font-size: clamp(1.05rem, 1.5vw, 1.2rem);
}

.no-break {
  white-space: nowrap;
}

.identity-heading {
  display: flex;
  flex-wrap: wrap;
  gap: 0 0.18em;
  font-size: clamp(2rem, 4vw, 3.4rem);
}

.identity-heading span {
  white-space: nowrap;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-teal-dark);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid currentColor;
  transition:
    gap var(--transition),
    color var(--transition);
}

.text-link:hover {
  gap: 1rem;
  color: var(--color-teal-dark);
}

.arrow {
  width: 1.25rem;
  height: 1.25rem;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.7;
}

.button {
  display: inline-flex;
  min-height: 3.55rem;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 0.8rem 1.4rem;
  color: var(--color-white);
  background: linear-gradient(135deg, var(--color-ink), var(--color-teal-dark));
  border: 2px solid var(--color-ink);
  border-radius: var(--radius-sm);
  font-weight: 750;
  letter-spacing: 0.04em;
  text-align: center;
  text-decoration: none;
  transition:
    color var(--transition),
    background-color var(--transition),
    border-color var(--transition),
    transform var(--transition);
}

.button:hover {
  color: var(--color-white);
  background: var(--color-teal-dark);
  border-color: var(--color-teal-dark);
  transform: translateY(-2px);
}

.button--outline {
  color: var(--color-ink);
  background: var(--color-white);
}

.button--outline:hover {
  color: var(--color-white);
}

.button--coral {
  background: var(--color-coral);
  border-color: var(--color-coral);
}

.button--wide {
  min-width: min(100%, 19rem);
}

.site-header {
  position: relative;
  z-index: 100;
  border-bottom: 1px solid var(--color-line-soft);
  background: rgb(255 255 255 / 96%);
}

.site-header__inner {
  display: flex;
  min-height: 6.3rem;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  color: var(--color-ink-strong);
  text-decoration: none;
}

.brand__mark {
  position: relative;
  display: grid;
  width: 2.7rem;
  height: 2.7rem;
  place-items: center;
  border: 2px solid var(--color-ink);
}

.brand__mark::before,
.brand__mark::after {
  position: absolute;
  content: "";
}

.brand__mark::before {
  top: 0.45rem;
  right: -0.42rem;
  width: 1.1rem;
  height: 2px;
  background: var(--color-teal);
  box-shadow: 0 1.45rem 0 var(--color-teal);
}

.brand__mark::after {
  top: -0.42rem;
  left: 0.45rem;
  width: 2px;
  height: 1.1rem;
  background: var(--color-teal);
}

.brand__text {
  display: grid;
  line-height: 1.2;
}

.brand__name {
  font-size: clamp(1rem, 1.6vw, 1.35rem);
  font-weight: 800;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.brand__handle {
  margin-top: 0.25rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.2vw, 2.1rem);
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2vw, 2rem);
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav__item {
  position: relative;
}

.site-nav__item--has-submenu > .site-nav__link {
  display: inline-flex;
  align-items: center;
  gap: 0.48rem;
}

.site-nav__chevron {
  width: 0.48rem;
  height: 0.48rem;
  border-right: 2px solid var(--color-teal-dark);
  border-bottom: 2px solid var(--color-teal-dark);
  transform: translateY(-0.14rem) rotate(45deg);
  transition: transform var(--transition);
}

.site-submenu {
  position: absolute;
  z-index: 120;
  top: calc(100% + 0.55rem);
  left: 50%;
  width: min(40rem, 82vw);
  padding: 1.25rem;
  visibility: hidden;
  background: rgb(255 255 255 / 98%);
  border: 1px solid var(--color-line-soft);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-menu);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 0.65rem);
  transition:
    opacity var(--transition),
    transform var(--transition),
    visibility var(--transition);
}

.site-submenu::before {
  position: absolute;
  right: 0;
  bottom: 100%;
  left: 0;
  height: 0.8rem;
  content: "";
}

.site-nav__item--has-submenu:hover .site-submenu,
.site-nav__item--has-submenu:focus-within .site-submenu {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, 0);
}

.site-nav__item--has-submenu:hover .site-nav__chevron,
.site-nav__item--has-submenu:focus-within .site-nav__chevron {
  transform: translateY(-0.14rem) rotate(45deg);
}

.site-submenu__title {
  margin: 0 0 0.75rem;
  color: var(--color-teal-dark);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.site-submenu__list {
  display: grid;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  list-style: none;
}

.site-submenu__list a {
  display: flex;
  min-height: 3rem;
  align-items: center;
  padding: 0.65rem 0.8rem;
  color: var(--color-text);
  border-left: 3px solid transparent;
  font-size: 0.82rem;
  font-weight: 700;
  line-height: 1.45;
  text-decoration: none;
  transition:
    color var(--transition),
    background-color var(--transition),
    border-color var(--transition);
}

.site-submenu__list a:hover,
.site-submenu__list a:focus-visible {
  color: var(--color-ink-strong);
  background: var(--color-ice);
  border-left-color: var(--color-coral);
}

.site-nav__link {
  position: relative;
  padding-block: 0.7rem;
  color: var(--color-ink-strong);
  font-size: 0.92rem;
  font-weight: 700;
  text-decoration: none;
}

.site-nav__link::after {
  position: absolute;
  right: 0;
  bottom: 0.35rem;
  left: 0;
  height: 2px;
  background: var(--color-teal);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition);
}

.site-nav__link:hover::after,
.site-nav__link[aria-current="page"]::after {
  transform: scaleX(1);
  transform-origin: left;
}

.menu-button {
  display: none;
  width: 3rem;
  height: 3rem;
  padding: 0.7rem;
  color: var(--color-ink);
  background: transparent;
  border: 0;
  cursor: pointer;
}

.menu-button span {
  display: block;
  width: 100%;
  height: 2px;
  margin-block: 0.42rem;
  background: currentColor;
  transition:
    transform var(--transition),
    opacity var(--transition);
}

.menu-button[aria-expanded="true"] span:first-child {
  transform: translateY(0.42rem) rotate(45deg);
}

.menu-button[aria-expanded="true"] span:last-child {
  transform: translateY(-0.42rem) rotate(-45deg);
}

.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(4.5rem, 8vw, 8rem);
}

.hero::before {
  position: absolute;
  top: 2rem;
  bottom: 2rem;
  left: max(1rem, calc((100vw - var(--container)) / 2 - 2.5rem));
  width: 1px;
  background: var(--color-line);
  content: "";
}

.hero__grid {
  display: grid;
  align-items: center;
  gap: clamp(2.5rem, 5vw, 5rem);
  grid-template-columns: minmax(0, 1.2fr) minmax(23rem, 0.8fr);
}

.hero__title {
  max-width: 12em;
  margin-bottom: 1.6rem;
  font-size: clamp(2.8rem, 4vw, 4rem);
  line-height: 1.32;
  letter-spacing: 0;
  text-wrap: balance;
}

.hero__line-group {
  display: block;
  white-space: nowrap;
}

.hero__description {
  max-width: 35rem;
  margin-bottom: 2rem;
  color: var(--color-muted);
  font-size: clamp(1.05rem, 1.45vw, 1.2rem);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.hero__visual {
  position: relative;
}

.hero__visual::before {
  position: absolute;
  z-index: -1;
  inset: 7% 4% 3% 12%;
  border: 1px solid var(--color-line);
  content: "";
  transform: translate(1.1rem, 1.1rem);
}

.hero__visual img {
  width: 100%;
  height: auto;
  background: var(--color-white);
}

.service-index {
  border-top: 1px solid var(--color-line);
}

.service-row {
  display: grid;
  min-height: 10.5rem;
  align-items: center;
  gap: clamp(1rem, 3vw, 3rem);
  padding-block: 1.5rem;
  border-bottom: 1px solid var(--color-line);
  grid-template-columns: 5rem minmax(0, 1fr) 2.25rem;
  text-decoration: none;
  transition:
    background-color var(--transition),
    padding-inline var(--transition);
}

.service-row:hover {
  padding-inline: 1rem;
  background: linear-gradient(90deg, var(--color-ice), var(--color-sky-soft));
}

.service-row__number {
  color: var(--color-coral);
  font-family: var(--font-mono);
  font-size: 1.75rem;
}

.service-row__content {
  display: grid;
  align-items: center;
  gap: clamp(0.75rem, 3vw, 3rem);
  grid-template-columns: minmax(13rem, 0.85fr) minmax(0, 1.15fr);
}

.service-row__content h3,
.service-row__content p {
  margin-bottom: 0;
}

.service-row__content h3 {
  color: var(--color-ink);
}

.service-row__content p {
  color: var(--color-muted);
}

.service-row__description {
  display: grid;
  gap: 0.7rem;
}

.service-row__action {
  width: fit-content;
  color: var(--color-teal-dark);
  border-bottom: 1px solid currentColor;
  font-size: 0.85rem;
  font-weight: 800;
}

.service-row:hover .service-row__action {
  color: var(--color-coral);
}

.filter-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.55rem;
  margin: 0 0 2.5rem;
  padding: 0;
  list-style: none;
}

.filter-button {
  min-height: 2.75rem;
  padding: 0.45rem 1rem;
  color: var(--color-ink);
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-weight: 700;
  cursor: pointer;
}

.filter-button:hover {
  border-color: var(--color-line);
}

.filter-button[aria-pressed="true"] {
  color: var(--color-white);
  background: var(--color-teal-dark);
  border-color: var(--color-teal-dark);
}

.works-layout {
  display: grid;
  border-top: 1px solid var(--color-line);
  grid-template-columns: 1fr;
}

.work-card {
  --work-accent: var(--color-teal);
  position: relative;
  min-width: 0;
  border-right: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  border-left: 4px solid var(--work-accent);
  background: var(--color-white);
}

.work-card[data-work-category="web"] {
  --work-accent: var(--color-teal);
}

.work-card[data-work-category="tool"] {
  --work-accent: #4b79bd;
}

.work-card[data-work-category="ai"] {
  --work-accent: #7566bd;
}

.work-card[data-work-category="game"] {
  --work-accent: var(--color-coral);
}

.work-card[data-work-category="video"] {
  --work-accent: #b15f91;
}

.work-card__link {
  display: grid;
  min-height: 24rem;
  align-items: center;
  padding: clamp(1.5rem, 3vw, 2.5rem);
  grid-template-columns: minmax(15rem, 0.7fr) minmax(25rem, 1.3fr);
  gap: clamp(2rem, 5vw, 5rem);
  text-decoration: none;
  transition:
    background-color var(--transition),
    box-shadow var(--transition);
}

.explanation-card__layout {
  display: grid;
  min-height: 24rem;
  align-items: center;
  padding: clamp(1.5rem, 3vw, 2.5rem);
  grid-template-columns: minmax(15rem, 0.7fr) minmax(25rem, 1.3fr);
  gap: clamp(2rem, 5vw, 5rem);
  transition:
    background-color var(--transition),
    box-shadow var(--transition);
}

.work-card__link:hover {
  background: linear-gradient(100deg, var(--color-white) 34%, var(--color-ice) 100%);
  box-shadow: inset 0 0 0 1px rgb(21 156 163 / 8%);
}

.explanation-card:hover .explanation-card__layout {
  background: linear-gradient(100deg, var(--color-white) 34%, var(--color-ice) 100%);
  box-shadow: inset 0 0 0 1px rgb(21 156 163 / 8%);
}

.work-card__link:focus-visible {
  position: relative;
  z-index: 2;
}

.work-card h2,
.work-card h3 {
  color: var(--color-ink);
  font-size: clamp(1.7rem, 3vw, 2.65rem);
}

.work-card__meta {
  display: flex;
  gap: 1rem;
  align-items: baseline;
  margin-bottom: 1rem;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
}

.work-card__number {
  color: var(--color-coral);
  font-size: 1.5rem;
}

.work-card__body {
  align-self: center;
}

.work-card__body p {
  color: var(--color-muted);
}

.explanation-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  align-items: center;
  margin-top: 1.5rem;
}

.explanation-card__actions .button {
  min-width: 11rem;
}

.related-work-links {
  display: grid;
  border-top: 1px solid var(--color-line);
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.related-work-link {
  display: grid;
  min-height: 10rem;
  align-content: center;
  gap: 0.45rem;
  padding: clamp(1.5rem, 3vw, 2.5rem);
  border-right: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  background: var(--color-white);
  text-decoration: none;
  transition:
    background-color var(--transition),
    color var(--transition);
}

.related-work-link:nth-child(2n) {
  border-right: 0;
}

.related-work-link:hover {
  color: var(--color-teal-dark);
  background: var(--color-ice);
}

.related-work-link span {
  color: var(--color-coral);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.related-work-link strong {
  font-size: clamp(1.15rem, 2vw, 1.5rem);
}

.work-card__media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  margin-top: 0;
  background: var(--color-ice);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

.work-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 380ms ease;
}

.work-card:hover .work-card__media img {
  transform: scale(1.02);
}

.work-card__link:hover .text-link {
  gap: 1rem;
  color: var(--color-coral);
}

.work-card__placeholder {
  display: grid;
  width: 100%;
  height: 100%;
  place-items: center;
  padding: 1.5rem;
  color: var(--color-ink);
  background:
    linear-gradient(var(--color-line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-line-soft) 1px, transparent 1px),
    var(--color-ice);
  background-size: 2rem 2rem;
  text-align: center;
}

.work-card__placeholder strong {
  padding: 0.75rem 1rem;
  background: rgb(255 255 255 / 92%);
  border: 1px solid var(--color-line);
}

.about-grid {
  display: grid;
  align-items: center;
  gap: clamp(3rem, 7vw, 7rem);
  grid-template-columns: minmax(0, 0.95fr) minmax(22rem, 1.05fr);
}

.about-statement {
  color: var(--color-ink);
  font-size: clamp(1.35rem, 2.1vw, 1.85rem);
  font-weight: 750;
  line-height: 1.75;
  text-wrap: pretty;
}

.principles {
  margin: 2.5rem 0;
  padding: 0;
  border-top: 1px solid var(--color-line);
  list-style: none;
}

.principle {
  display: grid;
  gap: 1rem;
  padding-block: 1.25rem;
  border-bottom: 1px solid var(--color-line);
  grid-template-columns: 3rem minmax(0, 1fr);
}

.principle__number {
  color: var(--color-coral);
  font-family: var(--font-mono);
}

.principle h3,
.principle p {
  margin-bottom: 0;
}

.principle h3 {
  font-size: 1.1rem;
}

.principle p {
  margin-top: 0.3rem;
  color: var(--color-muted);
  font-size: 0.92rem;
}

.about-visual {
  position: relative;
  padding: 1.5rem;
}

.about-visual img {
  border: 1px solid var(--color-line);
  background: var(--color-white);
}

.about-visual::before,
.about-visual::after {
  position: absolute;
  z-index: -1;
  content: "";
}

.about-visual--profile {
  display: grid;
  width: min(100%, 30rem);
  min-height: 29rem;
  place-content: center;
  justify-items: center;
  margin-inline: auto;
  padding: clamp(2.5rem, 6vw, 4.5rem);
  background:
    radial-gradient(circle at 82% 18%, var(--color-coral-soft) 0 12%, transparent 12.5%),
    linear-gradient(145deg, var(--color-ice), var(--color-sky-soft));
  border: 1px solid var(--color-line-soft);
  border-radius: 50% 50% 46% 54% / 45% 48% 52% 55%;
}

.about-visual--profile img {
  width: min(15rem, 65vw);
  aspect-ratio: 1;
  border: 0.55rem solid var(--color-white);
  border-radius: 50%;
  box-shadow: var(--shadow-soft);
}

.about-visual--profile::before {
  inset: 8% auto auto 4%;
  width: 5rem;
  height: 5rem;
  background:
    linear-gradient(var(--color-teal) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-teal) 1px, transparent 1px);
  background-size: 1rem 1rem;
  opacity: 0.35;
}

.about-visual--profile::after {
  top: auto;
  right: 8%;
  bottom: 9%;
  width: 4rem;
  height: 4rem;
  border: 1px solid var(--color-coral);
  border-radius: 50%;
}

.profile-name {
  margin: 1.2rem 0 0;
  color: var(--color-ink-strong);
  font-family: var(--font-mono);
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  font-weight: 800;
  letter-spacing: 0.04em;
}

.profile-role {
  margin: 0.2rem 0 0;
  color: var(--color-teal-dark);
  font-size: 0.84rem;
  font-weight: 700;
}

.about-visual::before {
  inset: 0 14% 12% 0;
  background: var(--color-ice);
}

.about-visual::after {
  top: 4%;
  right: 4%;
  width: 38%;
  height: 42%;
  border-top: 1px solid var(--color-teal);
  border-right: 1px solid var(--color-teal);
}

.contact-band {
  position: relative;
  overflow: hidden;
  padding: clamp(3.5rem, 7vw, 6rem) var(--gutter);
  background: var(--color-ice);
  border: 1px solid var(--color-line-soft);
  text-align: center;
}

.contact-band::before,
.contact-band::after {
  position: absolute;
  width: 5rem;
  height: 5rem;
  content: "";
}

.contact-band::before {
  top: 2rem;
  left: 2rem;
  border-top: 1px solid var(--color-line);
  border-left: 1px solid var(--color-line);
}

.contact-band::after {
  right: 2rem;
  bottom: 2rem;
  border-right: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
}

.contact-band p {
  margin-inline: auto;
}

.external-note {
  display: block;
  margin-top: 0.75rem;
  color: var(--color-muted);
  font-size: 0.78rem;
}

.contact-content {
  display: grid;
  justify-items: center;
}

.contact-content .prose {
  width: min(100%, 48rem);
}

.site-footer {
  padding-block: 3rem;
  border-top: 1px solid var(--color-line);
}

.site-footer__inner {
  display: grid;
  align-items: end;
  gap: 2rem;
  grid-template-columns: 1fr auto;
}

.site-footer__brand {
  color: var(--color-ink);
  font-weight: 800;
}

.site-footer__handle {
  display: block;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.site-footer__nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.8rem 1.4rem;
}

.site-footer__nav a {
  color: var(--color-muted);
  font-size: 0.82rem;
}

.site-footer__copy {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--color-muted);
  font-size: 0.75rem;
}

.page-hero {
  padding-block: clamp(4.5rem, 8vw, 7rem);
  border-bottom: 1px solid var(--color-line);
}

.page-hero__grid {
  display: grid;
  align-items: end;
  gap: 2rem;
  grid-template-columns: minmax(0, 1fr) minmax(18rem, 0.7fr);
}

.page-hero h1 {
  margin-bottom: 0;
}

.page-hero p {
  margin-bottom: 0;
  color: var(--color-muted);
  font-size: 1.08rem;
}

.content-grid {
  display: grid;
  gap: clamp(2rem, 5vw, 5rem);
  grid-template-columns: minmax(0, 0.75fr) minmax(0, 1.25fr);
}

.content-grid + .content-grid {
  margin-top: clamp(4rem, 8vw, 7rem);
  padding-top: clamp(4rem, 8vw, 7rem);
  border-top: 1px solid var(--color-line);
}

.content-grid__index {
  color: var(--color-coral);
  font-family: var(--font-mono);
  font-size: 1.6rem;
}

.content-grid h2 {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
}

.content-grid__body p,
.prose p,
.prose li {
  color: var(--color-muted);
}

.plain-list {
  display: grid;
  gap: 0.8rem;
  margin: 1.5rem 0;
  padding: 0;
  list-style: none;
}

.plain-list li {
  position: relative;
  padding-left: 1.3rem;
}

.plain-list li::before {
  position: absolute;
  top: 0.82em;
  left: 0;
  width: 0.38rem;
  height: 0.38rem;
  background: var(--color-teal);
  content: "";
}

.notice {
  padding: 1.3rem 1.5rem;
  background: var(--color-ice);
  border-left: 3px solid var(--color-teal);
}

.notice p:last-child {
  margin-bottom: 0;
}

.breadcrumb {
  padding-block: 1rem;
  color: var(--color-muted);
  font-size: 0.8rem;
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.breadcrumb li + li::before {
  margin-right: 0.55rem;
  color: var(--color-line);
  content: "/";
}

.work-hero {
  padding-block: clamp(3.5rem, 7vw, 6rem);
}

.work-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.5rem;
  margin-bottom: 1rem;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.work-hero h1 {
  max-width: 12em;
  margin-bottom: 1rem;
}

.demo-shell {
  overflow: hidden;
  margin-block: clamp(2.5rem, 5vw, 4rem);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-white);
  box-shadow: var(--shadow-soft);
}

.demo-shell__bar {
  display: flex;
  min-height: 3rem;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.5rem 1rem;
  color: var(--color-muted);
  background: var(--color-ice);
  border-bottom: 1px solid var(--color-line);
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.demo-shell__dots {
  display: flex;
  gap: 0.4rem;
}

.demo-shell__dots span {
  width: 0.5rem;
  height: 0.5rem;
  background: var(--color-line);
  border-radius: 50%;
}

.demo-shell__content {
  min-height: 28rem;
}

.demo-shell__content--video {
  min-height: 0;
  background: var(--color-ink);
}

.work-video {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  background: var(--color-ink);
}

.demo-note {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  background: var(--color-ice);
  border-top: 1px solid var(--color-line);
  color: var(--color-muted);
  font-size: 0.82rem;
}

.detail-columns {
  display: grid;
  gap: clamp(2rem, 5vw, 5rem);
  grid-template-columns: minmax(0, 1.15fr) minmax(17rem, 0.85fr);
}

.definition-list {
  margin: 0;
}

.definition-list div {
  display: grid;
  gap: 0.5rem;
  padding-block: 1rem;
  border-bottom: 1px solid var(--color-line-soft);
  grid-template-columns: 8rem minmax(0, 1fr);
}

.definition-list dt {
  color: var(--color-ink);
  font-weight: 750;
}

.definition-list dd {
  margin: 0;
  color: var(--color-muted);
}

.work-gallery {
  display: grid;
  gap: 1rem;
  margin-top: clamp(2rem, 4vw, 3rem);
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.work-gallery__item {
  overflow: hidden;
  margin: 0;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-white);
  box-shadow: var(--shadow-soft);
}

.work-gallery__frame {
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border-bottom: 1px solid var(--color-line-soft);
  background: var(--color-ink);
}

.work-gallery__frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
}

.work-gallery__frame--portrait img {
  object-fit: contain;
  object-position: center;
}

.work-gallery__frame--portrait {
  aspect-ratio: 9 / 16;
}

.work-gallery figcaption {
  display: grid;
  gap: 0.35rem;
  padding: 1rem 1.1rem 1.15rem;
}

.work-gallery figcaption strong {
  color: var(--color-ink);
  font-size: 0.94rem;
}

.work-gallery figcaption span {
  color: var(--color-muted);
  font-size: 0.78rem;
  line-height: 1.65;
}

.work-map {
  margin-top: 2rem;
  padding: clamp(1.25rem, 3vw, 1.75rem);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-white);
}

.work-map h3 {
  margin-bottom: 0.7rem;
  font-size: 1rem;
}

.work-map p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.86rem;
  line-height: 1.85;
}

.not-found {
  display: grid;
  min-height: 66vh;
  place-items: center;
  padding-block: 5rem;
  text-align: center;
}

.not-found__code {
  margin-bottom: 0;
  color: var(--color-teal);
  font-family: var(--font-mono);
  font-size: clamp(5rem, 18vw, 12rem);
  font-weight: 800;
  line-height: 0.9;
}

.js [data-reveal] {
  opacity: 0;
  transform: translateY(1.25rem);
  transition:
    opacity 520ms ease,
    transform 520ms ease;
}

.js [data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .site-header__inner {
    min-height: 5.35rem;
  }

  .menu-button {
    display: block;
  }

  .site-nav {
    position: fixed;
    z-index: 90;
    inset: 5.35rem 0 0;
    display: none;
    align-items: stretch;
    padding: 2rem var(--gutter);
    background: var(--color-white);
    overflow-y: auto;
  }

  .site-nav[data-open="true"] {
    display: block;
  }

  .site-nav__list {
    display: grid;
    gap: 0;
  }

  .site-nav__item {
    width: 100%;
  }

  .site-nav__link {
    display: block;
    padding-block: 1.15rem;
    border-bottom: 1px solid var(--color-line);
    font-size: 1.15rem;
  }

  .site-nav__item--has-submenu > .site-nav__link {
    display: flex;
    justify-content: space-between;
  }

  .site-submenu {
    position: static;
    width: 100%;
    padding: 0.75rem;
    visibility: visible;
    background: var(--color-ice);
    border: 0;
    border-radius: 0;
    box-shadow: none;
    opacity: 1;
    pointer-events: auto;
    transform: none;
  }

  .site-submenu__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-nav .button {
    width: 100%;
    margin-top: 1.5rem;
  }

  .hero__grid,
  .page-hero__grid,
  .about-grid,
  .content-grid,
  .detail-columns {
    grid-template-columns: 1fr;
  }

  .hero__visual {
    max-width: 43rem;
    margin-inline: auto;
  }

  .works-layout {
    grid-template-columns: 1fr;
  }

  .work-card__link {
    min-height: 0;
    grid-template-columns: 1fr;
  }

  .explanation-card__layout {
    min-height: 0;
    grid-template-columns: 1fr;
  }

  .work-gallery {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-footer__inner {
    grid-template-columns: 1fr;
  }

  .site-footer__nav {
    justify-content: flex-start;
  }
}

@media (max-width: 700px) {
  html {
    scroll-padding-top: 5.3rem;
  }

  body {
    line-height: 1.75;
  }

  .brand__mark {
    display: none;
  }

  .brand__name {
    font-size: 1rem;
  }

  .brand__handle {
    font-size: 0.67rem;
  }

  .hero {
    padding-top: 3.7rem;
  }

  .hero::before {
    display: none;
  }

  .hero__title {
    max-width: 100%;
    font-size: clamp(1.3rem, 6.4vw, 2rem);
    line-height: 1.42;
  }

  .hero__line-group {
    white-space: nowrap;
  }

  .hero__actions {
    display: grid;
  }

  .hero__actions .button {
    width: 100%;
  }

  .hero__visual {
    margin-top: 1rem;
  }

  .section {
    padding-block: 4.5rem;
  }

  .service-row {
    min-height: 0;
    gap: 1rem;
    padding-block: 1.5rem;
    grid-template-columns: 2.5rem minmax(0, 1fr) 1.5rem;
  }

  .service-row__number {
    font-size: 1.1rem;
  }

  .service-row__content {
    grid-template-columns: 1fr;
  }

  .service-row__content p {
    font-size: 0.9rem;
  }

  .filter-list {
    justify-content: flex-start;
  }

  .site-submenu__list {
    grid-template-columns: 1fr;
  }

  .site-submenu__list a {
    min-height: 2.7rem;
    padding-block: 0.5rem;
    font-size: 0.78rem;
  }

  .work-card {
    border-left-width: 3px;
  }

  .work-card__link {
    gap: 1.5rem;
    padding: 1.25rem;
  }

  .explanation-card__layout {
    gap: 1.5rem;
    padding: 1.25rem;
  }

  .explanation-card__actions {
    align-items: stretch;
    flex-direction: column;
  }

  .explanation-card__actions .button {
    width: 100%;
  }

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

  .related-work-link,
  .related-work-link:nth-child(2n) {
    min-height: 8rem;
    border-right: 0;
  }

  .about-visual {
    padding: 0;
  }

  .contact-band {
    padding-inline: 1.25rem;
  }

  .contact-band::before,
  .contact-band::after {
    width: 2.5rem;
    height: 2.5rem;
  }

  .definition-list div {
    grid-template-columns: 1fr;
  }

  .demo-shell__content {
    min-height: 22rem;
  }

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

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .js [data-reveal] {
    opacity: 1;
    transform: none;
  }
}