:root {
  --bg: oklch(0.165 0.008 255);
  --bg-raised: oklch(0.205 0.009 255);
  --ink: oklch(0.93 0.006 255);
  --ink-dim: oklch(0.68 0.012 255);
  --ink-faint: oklch(0.48 0.012 255);
  --line: oklch(0.30 0.01 255);
  --accent: oklch(0.74 0.145 62);
  --accent-deep: oklch(0.60 0.13 55);
  --font: "Archivo", system-ui, sans-serif;
  --pad: clamp(1.25rem, 5vw, 5rem);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--accent-deep);
  color: oklch(0.97 0.005 255);
}

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

.wordmark {
  font-weight: 800;
  font-stretch: 122%;
  letter-spacing: 0.06em;
  font-size: 1.05rem;
}

.wordmark.small {
  color: var(--ink-dim);
  font-size: 0.9rem;
}

.site-head {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.1rem var(--pad);
  background: color-mix(in oklch, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.site-head nav {
  display: flex;
  gap: clamp(1rem, 3vw, 2.25rem);
  font-size: 0.92rem;
  font-weight: 500;
}

.site-head nav a {
  color: var(--ink-dim);
  transition: color 0.2s ease-out;
}

.site-head nav a:hover {
  color: var(--ink);
}

.site-head .nav-cta {
  color: var(--accent);
}

.site-head nav a[aria-current="page"] {
  color: var(--ink);
}

.page-head {
  max-width: 60rem;
  margin-inline: auto;
  padding: clamp(4rem, 12vh, 7rem) var(--pad) clamp(2.5rem, 6vh, 4rem);
}

.page-head h1 {
  font-size: clamp(2.6rem, 6.5vw, 4.5rem);
  font-weight: 800;
  font-stretch: 115%;
  line-height: 1.05;
  letter-spacing: -0.015em;
}

.page-head p {
  margin-top: 1.25rem;
  max-width: 36rem;
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  color: var(--ink-dim);
}

.hero {
  position: relative;
  padding: clamp(5rem, 14vh, 9rem) var(--pad) clamp(4rem, 10vh, 7rem);
  border-bottom: 1px solid var(--line);
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 72px 72px;
  background-position: center top;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 90% 80% at 30% 20%, transparent 30%, var(--bg) 78%);
  pointer-events: none;
}

.hero > * {
  position: relative;
  z-index: 1;
  max-width: 60rem;
  margin-inline: auto;
}

.hero-tag {
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero h1 {
  margin-top: 1.25rem;
  font-size: clamp(2.9rem, 9vw, 6.5rem);
  font-weight: 800;
  font-stretch: 115%;
  line-height: 1.02;
  letter-spacing: -0.015em;
}

.hero-sub {
  margin-top: 1.75rem;
  max-width: 34rem;
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  color: var(--ink-dim);
}

.hero-actions {
  margin-top: 2.75rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 0.8rem 1.6rem;
  background: var(--accent);
  color: oklch(0.18 0.02 62);
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: 3px;
  transition: background 0.2s ease-out;
}

.btn:hover {
  background: oklch(0.80 0.14 65);
}

.btn.ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}

.btn.ghost:hover {
  background: var(--bg-raised);
  border-color: var(--ink-faint);
}

.section {
  max-width: 60rem;
  margin-inline: auto;
  padding: clamp(4rem, 10vh, 7rem) var(--pad);
}

.section + .section,
.page-head + .section {
  border-top: 1px solid var(--line);
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr);
  gap: 1.5rem 3rem;
  margin-bottom: clamp(2.5rem, 6vh, 4rem);
}

.section-head h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  font-stretch: 112%;
  letter-spacing: -0.01em;
  line-height: 1.1;
}

.section-head p {
  color: var(--ink-dim);
  align-self: end;
  max-width: 32rem;
}

.service-list {
  list-style: none;
  padding: 0;
}

.service-list li {
  display: grid;
  grid-template-columns: 4rem minmax(0, 14rem) minmax(0, 1fr);
  gap: 1rem 2.5rem;
  padding: 2rem 0;
  border-top: 1px solid var(--line);
}

.service-index {
  color: var(--accent);
  font-weight: 700;
  font-size: 0.9rem;
  padding-top: 0.35rem;
  font-variant-numeric: tabular-nums;
}

.service-list h3 {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.3;
}

.service-list p {
  color: var(--ink-dim);
  font-size: 0.98rem;
}

.service-list.detailed li {
  scroll-margin-top: 5rem;
}

.service-list.detailed li:first-child {
  border-top: none;
  padding-top: 0;
}

.service-list.detailed h2 {
  font-size: 1.4rem;
  font-weight: 700;
  line-height: 1.3;
}

.service-list.detailed div p + p {
  margin-top: 0.9rem;
}

.overview-list {
  list-style: none;
  padding: 0;
}

.overview-list li {
  border-top: 1px solid var(--line);
}

.overview-list a {
  display: grid;
  grid-template-columns: minmax(0, 16rem) minmax(0, 1fr) auto;
  gap: 0.5rem 2.5rem;
  align-items: baseline;
  padding: 1.6rem 0;
  transition: color 0.2s ease-out;
}

.overview-list h3 {
  font-size: 1.15rem;
  font-weight: 700;
}

.overview-list p {
  color: var(--ink-dim);
  font-size: 0.98rem;
}

.overview-list .arrow {
  color: var(--ink-faint);
  transition: color 0.2s ease-out, transform 0.2s ease-out;
}

.overview-list a:hover .arrow {
  color: var(--accent);
  transform: translateX(4px);
}

.feature-list {
  list-style: none;
  padding: 0;
  margin-top: 2rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 2rem;
  border-top: 1px solid var(--line);
  padding-top: 2rem;
}

.feature-list h3 {
  font-size: 1.05rem;
  font-weight: 700;
}

.feature-list p {
  margin-top: 0.5rem;
  color: var(--ink-dim);
  font-size: 0.95rem;
}

.text-link {
  display: inline-block;
  margin-top: 1.5rem;
  color: var(--accent);
  font-weight: 600;
  border-bottom: 1px solid var(--accent-deep);
  padding-bottom: 0.1rem;
  transition: color 0.2s ease-out;
}

.text-link:hover {
  color: oklch(0.82 0.13 65);
}

.cta-band {
  text-align: center;
  padding-top: clamp(4rem, 10vh, 6rem);
  padding-bottom: clamp(4.5rem, 11vh, 7rem);
}

.cta-band h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  font-stretch: 112%;
  letter-spacing: -0.01em;
}

.cta-band p {
  margin-top: 1rem;
  color: var(--ink-dim);
}

.cta-band .btn {
  margin-top: 2rem;
}

.product {
  border: 1px solid var(--line);
  background: var(--bg-raised);
  border-radius: 4px;
  padding: clamp(1.75rem, 4vw, 3rem);
}

.product-name {
  display: flex;
  align-items: baseline;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.product-name h2,
.product-name h3 {
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  font-weight: 800;
  font-stretch: 118%;
  letter-spacing: 0.01em;
}

.product-kind {
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: 1px solid var(--accent-deep);
  border-radius: 99px;
  padding: 0.25rem 0.8rem;
}

.product-desc {
  margin-top: 1.25rem;
  max-width: 40rem;
  color: var(--ink-dim);
  font-size: 1.05rem;
}

.work-note {
  margin-top: 2.5rem;
  max-width: 44rem;
  color: var(--ink-dim);
}

.about-body {
  max-width: 44rem;
}

.about-lede {
  font-size: clamp(1.3rem, 2.5vw, 1.7rem);
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 1.5rem;
}

.about-body p:not(.about-lede) {
  color: var(--ink-dim);
}

.contact {
  text-align: left;
}

.contact-lede {
  font-size: clamp(1.2rem, 2.2vw, 1.5rem);
  font-weight: 600;
  max-width: 34rem;
}

.contact-mail {
  display: inline-block;
  margin-top: 1.75rem;
  font-size: clamp(1.4rem, 4vw, 2.4rem);
  font-weight: 800;
  font-stretch: 112%;
  color: var(--accent);
  border-bottom: 2px solid var(--accent-deep);
  padding-bottom: 0.2rem;
  transition: color 0.2s ease-out, border-color 0.2s ease-out;
  overflow-wrap: anywhere;
}

.contact-mail:hover {
  color: oklch(0.82 0.13 65);
  border-color: var(--accent);
}

.contact-note {
  margin-top: 1.5rem;
  color: var(--ink-dim);
  max-width: 34rem;
}

.site-foot {
  border-top: 1px solid var(--line);
  padding: 2.5rem var(--pad) 3rem;
  max-width: 60rem;
  margin-inline: auto;
  display: grid;
  gap: 0.5rem;
  font-size: 0.88rem;
  color: var(--ink-faint);
}

.site-foot a {
  color: var(--ink-dim);
}

.site-foot a:hover {
  color: var(--ink);
}

@media (max-width: 720px) {
  .site-head nav a:not(.nav-cta) {
    display: none;
  }

  .section-head {
    grid-template-columns: 1fr;
  }

  .service-list li {
    grid-template-columns: 3rem minmax(0, 1fr);
  }

  .service-list p,
  .service-list.detailed div {
    grid-column: 2;
  }

  .overview-list a {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .overview-list p {
    grid-column: 1;
  }

  .overview-list .arrow {
    grid-row: 1;
    grid-column: 2;
  }

  .hero {
    background-size: 48px 48px;
  }
}

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