:root {
  --bg: #080808;
  --bg-soft: #111;
  --fg: #f5f5f5;
  --muted: #b5b5b5;
  --line: #2e2e2e;
  --line-strong: #515151;
  --sidebar-w: 206px;
  --sidebar-offset: clamp(0.62rem, 1.4vw, 1.1rem);
  --nav-radius-desktop: 28px;
  --nav-radius-mobile: 22px;
  --mobile-nav-h: 0px;
  --mobile-nav-offset: 0px;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

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

html {
  height: 100%;
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  background-color: var(--bg);
  background: linear-gradient(180deg, #090909, #070707);
  color: var(--fg);
  font-family: "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.55;
  scroll-snap-type: y mandatory;
  overflow-y: auto;
  overflow-x: hidden;
  padding-top: var(--safe-top);
  padding-bottom: calc(var(--mobile-nav-h) + var(--safe-bottom) + var(--mobile-nav-offset));
  overscroll-behavior-y: none;
}

.grain {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image: radial-gradient(rgba(255, 255, 255, 0.04) 0.7px, transparent 0.7px);
  background-size: 3px 3px;
  opacity: 0.25;
}

.site-header {
  position: fixed;
  top: calc(var(--safe-top) + var(--sidebar-offset));
  left: var(--sidebar-offset);
  bottom: var(--sidebar-offset);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1.4rem;
  width: var(--sidebar-w);
  padding: 1.05rem 0.9rem 1.2rem;
  background: rgba(8, 8, 8, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: var(--nav-radius-desktop);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.22);
  overflow: hidden;
  z-index: 20;
}

.brand {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.08rem;
  color: var(--fg);
  text-decoration: none;
  font-family: "Archivo", "Arial Black", sans-serif;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  font-weight: 700;
  line-height: 1.08;
  white-space: normal;
}

.section-nav {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  width: 100%;
}

.section-nav a {
  display: block;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.71rem;
  letter-spacing: 0.15em;
  font-weight: 600;
  border-left: 1px solid transparent;
  padding: 0.2rem 0 0.2rem 0.55rem;
  transition: color 120ms ease, border-color 120ms ease;
}

.section-nav a:hover,
.section-nav a.active {
  color: var(--fg);
  border-left-color: var(--fg);
}

.section-nav a.active::after {
  content: none;
}

main {
  width: calc(100% - var(--sidebar-w) - var(--sidebar-offset));
  max-width: calc(100% - var(--sidebar-w) - var(--sidebar-offset));
  margin: 0 0 0 calc(var(--sidebar-w) + var(--sidebar-offset));
}

.step {
  min-height: 100svh;
  display: grid;
  align-items: center;
  padding: clamp(1.9rem, 3.2vw, 3rem) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
  scroll-snap-align: start;
  scroll-snap-stop: always;
  scroll-margin-top: 0;
}

.step-inner {
  width: min(1220px, calc(100% - 3rem));
  margin: 0 auto;
}

.step-product .step-inner {
  width: 100%;
  max-width: 100%;
  margin: 0;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.section-label {
  margin: 0 0 0.9rem;
  color: #cfcfcf;
  font-size: 0.68rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  font-weight: 700;
}

.app-section-label {
  margin: 0;
}

.app-name {
  margin: 0;
  color: #d7d7d7;
  font-family: "Archivo", "Arial Black", sans-serif;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  line-height: 1.04;
  text-transform: uppercase;
}

.app-rating {
  margin-top: 0.22rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.16rem 0.45rem;
}

.app-stars {
  margin: 0;
  color: #ebebeb;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  line-height: 1;
}

.app-rating-value {
  margin: 0;
  color: #ececec;
  font-family: "Archivo", "Arial Black", sans-serif;
  font-size: 0.64rem;
  letter-spacing: 0.14em;
  line-height: 1;
  text-transform: uppercase;
}

.app-rating-count {
  margin: 0;
  color: #bdbdbd;
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  line-height: 1;
  text-transform: uppercase;
  flex-basis: 100%;
}

.product-app-meta {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin: 0 0 0.95rem;
}

.product-app-meta-home {
  width: 100%;
  justify-content: space-between;
  align-items: center;
}

.product-app-id {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  min-width: 0;
}

.app-get-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 3.2rem;
  padding: 0.28rem 0.7rem;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 999px;
  color: #f4f4f4;
  text-decoration: none;
  font-family: "Archivo", "Arial Black", sans-serif;
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  line-height: 1;
  transition: border-color 120ms ease, color 120ms ease, background-color 120ms ease;
  white-space: nowrap;
}

.app-get-button:hover {
  border-color: #fff;
  background-color: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.product-app-meta-hero {
  margin-bottom: 1rem;
}

.app-icon {
  display: block;
  width: 52px;
  height: 52px;
  border-radius: 22%;
  border: 1px solid rgba(255, 255, 255, 0.22);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.35);
  background: #111;
  object-fit: cover;
}

.app-icon-product {
  width: 52px;
  height: 52px;
}

.app-icon-hero {
  width: 74px;
  height: 74px;
}

.display-title {
  margin: 0;
  font-family: "Archivo", "Arial Black", sans-serif;
  font-size: clamp(1.95rem, 7vw, 4.85rem);
  font-weight: 900;
  letter-spacing: 0.01em;
  line-height: 0.92;
  text-transform: uppercase;
}

.display-title span {
  display: block;
}

.section-copy {
  margin: 1.6rem 0 0;
  max-width: 64ch;
  color: var(--muted);
  font-size: clamp(0.98rem, 1.45vw, 1.16rem);
}

.intro-minimal {
  max-width: 72ch;
}

.intro-hero-title {
  font-size: clamp(2rem, 6.2vw, 5.05rem);
  line-height: 0.92;
}

.intro-hero-muted {
  color: rgba(245, 245, 245, 0.58);
}

.intro-thin-title {
  margin: 0 0 1.1rem;
  color: rgba(245, 245, 245, 0.9);
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 400;
}

.intro-copy {
  margin-top: 1.2rem;
  max-width: 56ch;
  color: #d2d2d2;
  font-size: clamp(0.84rem, 1.15vw, 0.98rem);
  line-height: 1.62;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.step-intro {
  overflow: hidden;
  isolation: isolate;
}

.step-intro::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.28), rgba(0, 0, 0, 0.62));
  z-index: 0;
  pointer-events: none;
}

.step-intro .step-inner {
  position: relative;
  z-index: 1;
}

.intro-video-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

.intro-video-bg video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.4) saturate(0.9);
}

.link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1.15rem;
  margin-top: 1.8rem;
}

.text-link {
  display: inline-flex;
  align-items: center;
  color: var(--fg);
  text-decoration: none;
  font-family: "Archivo", "Arial Black", sans-serif;
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border-bottom: 1px solid rgba(245, 245, 245, 0.55);
  padding-bottom: 0.18rem;
  transition: border-color 120ms ease, color 120ms ease;
}

.text-link:hover {
  color: #fff;
  border-color: #fff;
}

.text-link-cta {
  margin-top: 0.4rem;
}

.copy {
  max-width: 64ch;
}

.feature-list {
  margin: 1.35rem 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.45rem;
}

.feature-list li {
  color: #e7e7e7;
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.09em;
  border-left: 2px solid var(--line-strong);
  padding: 0.35rem 0 0.35rem 0.75rem;
}

.product-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1rem, 2vw, 2rem);
  width: 100%;
  max-width: 100%;
  padding-inline: clamp(1rem, 2vw, 2rem);
}

.product-media {
  margin: 0;
  width: 100%;
  min-width: 0;
}

.product-media img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 76svh;
  object-fit: contain;
  background: #0d0d0d;
}

.product-panel {
  padding: 0;
  min-width: 0;
}

.product-panel .display-title {
  font-size: clamp(1.5rem, 4.3vw, 3.05rem);
  line-height: 0.96;
}

.product-panel .section-copy {
  margin-top: 1rem;
}

.product-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 0.7rem;
}

.product-links .text-link-cta {
  margin-top: 0;
}

body.detail-page {
  scroll-snap-type: none;
}

body.detail-page-tutorials {
  --mobile-nav-h: 0px;
}

body.detail-page-legal {
  --mobile-nav-h: 0px;
}

body.detail-page-article {
  --mobile-nav-h: 0px;
  --mobile-nav-offset: 0px;
}

body.detail-page-tutorials main,
body.detail-page-tutorials .site-footer,
body.detail-page-legal main,
body.detail-page-legal .site-footer,
body.detail-page-article main,
body.detail-page-article .site-footer {
  width: 100%;
  max-width: 100%;
  margin-left: 0;
}

.detail-main {
  padding-block: clamp(1.2rem, 2.4vw, 2.4rem);
}

.detail-section {
  padding: clamp(1.4rem, 2.7vw, 2.8rem) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.detail-section:first-child {
  padding-top: clamp(1.8rem, 3.2vw, 3.2rem);
}

.detail-title {
  font-size: clamp(2rem, 6.3vw, 4.4rem);
}

.detail-title-inline {
  margin: 0.16rem 0 0;
  font-size: clamp(1.85rem, 5.2vw, 3.85rem);
  line-height: 0.93;
}

.detail-lead {
  max-width: 76ch;
}

.detail-subtitle {
  margin: 0;
  font-family: "Archivo", "Arial Black", sans-serif;
  font-size: clamp(1.05rem, 2.2vw, 1.65rem);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.highlights-grid {
  margin-top: 1.1rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.85rem;
}

.highlight-card {
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.03);
  padding: 1rem;
}

.highlight-illustration {
  margin: 0 0 0.95rem;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(0, 0, 0, 0.25);
  overflow: hidden;
}

.highlight-illustration svg {
  display: block;
  width: 100%;
  height: auto;
}

.highlight-card h3 {
  margin: 0;
  font-family: "Archivo", "Arial Black", sans-serif;
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.highlight-card p {
  margin: 0.7rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.usp-grid {
  margin-top: 1.1rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.85rem;
}

.usp-card {
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.02);
  padding: 1rem;
}

.usp-card h3 {
  margin: 0;
  font-family: "Archivo", "Arial Black", sans-serif;
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.usp-card p {
  margin: 0.7rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.reviews-summary {
  margin-top: 1.05rem;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.55rem 1rem;
}

.reviews-score {
  margin: 0;
  font-family: "Archivo", "Arial Black", sans-serif;
  font-size: clamp(1.1rem, 2.2vw, 1.65rem);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.reviews-count {
  margin: 0;
  color: var(--muted);
  font-size: 0.76rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.reviews-grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.85rem;
}

.review-card {
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.02);
  padding: 1rem;
}

.review-title {
  margin: 0;
  font-family: "Archivo", "Arial Black", sans-serif;
  font-size: 0.8rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.review-rating {
  margin: 0.58rem 0 0;
  color: #d8d8d8;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.review-body {
  margin: 0.62rem 0 0;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.55;
}

.review-author {
  margin: 0.72rem 0 0;
  color: #e7e7e7;
  font-size: 0.71rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.reviews-actions {
  margin-top: 1rem;
}

.reviews-more-button {
  display: inline-flex;
  align-items: center;
  color: var(--fg);
  background: transparent;
  border: 0;
  border-bottom: 1px solid rgba(245, 245, 245, 0.55);
  padding: 0 0 0.18rem;
  font-family: "Archivo", "Arial Black", sans-serif;
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color 120ms ease, color 120ms ease;
}

.reviews-more-button:hover {
  color: #fff;
  border-bottom-color: #fff;
}

.reviews-more-button:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.65);
  outline-offset: 4px;
}

.news-list {
  margin-top: 1rem;
  display: grid;
  gap: 0.85rem;
}

.news-card {
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.02);
}

.news-card-link {
  display: block;
  padding: 1rem;
  color: inherit;
  text-decoration: none;
  transition: background-color 120ms ease;
}

.news-card-link:hover {
  background: rgba(255, 255, 255, 0.04);
}

.news-kicker {
  margin: 0;
  color: #d8d8d8;
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-family: "Archivo", "Arial Black", sans-serif;
}

.news-title {
  margin: 0.55rem 0 0;
  font-family: "Archivo", "Arial Black", sans-serif;
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.news-excerpt {
  margin: 0.7rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.55;
  max-width: 74ch;
}

.news-read-link {
  display: inline-flex;
  margin-top: 0.8rem;
  color: #f3f3f3;
  border-bottom: 1px solid rgba(255, 255, 255, 0.6);
  padding-bottom: 0.12rem;
  font-family: "Archivo", "Arial Black", sans-serif;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.detail-gallery-grid {
  margin-top: 1.1rem;
  display: grid;
  gap: 0.85rem;
}

.detail-gallery-grid-tablet {
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.detail-gallery-grid-phone {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.detail-gallery-grid-samples {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.detail-gallery-grid-demos {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.tutorials-mini-grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.7rem;
}

.detail-shot {
  margin: 0;
  background: #0d0d0d;
}

.detail-shot img {
  display: block;
  width: 100%;
  height: auto;
}

.samples-status {
  margin: 0.9rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.demos-status {
  margin: 0.9rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.tutorials-status {
  margin: 0.9rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.samples-status[hidden] {
  display: none;
}

.demos-status[hidden] {
  display: none;
}

.tutorials-status[hidden] {
  display: none;
}

.tutorials-compact-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.7rem 1.1rem;
}

.tutorials-cta {
  margin-top: 0;
}

.tutorial-mini-card {
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.02);
  padding: 0.72rem;
}

.tutorial-mini-title {
  margin: 0;
  font-family: "Archivo", "Arial Black", sans-serif;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.tutorial-mini-meta {
  margin: 0.52rem 0 0;
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.45;
}

.sample-shot figcaption {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 0.55rem 0.7rem 0.62rem;
  color: #d7d7d7;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
}

.sample-credit {
  min-width: 0;
}

.sample-original-link {
  color: #f3f3f3;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.52);
  padding-bottom: 0.1rem;
  white-space: nowrap;
  text-transform: none;
  letter-spacing: 0.02em;
  font-size: 0.74rem;
}

.sample-original-link:hover {
  border-bottom-color: #fff;
}

.demo-card figcaption {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 0.55rem 0.7rem 0.62rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
}

.demo-title {
  color: #d7d7d7;
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.demo-download-link {
  color: #f3f3f3;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.52);
  padding-bottom: 0.1rem;
  white-space: nowrap;
  text-transform: none;
  letter-spacing: 0.02em;
  font-size: 0.74rem;
}

.demo-download-link:hover {
  border-bottom-color: #fff;
}

.tutorials-list {
  margin-top: 1rem;
  display: grid;
  gap: 0.9rem;
}

.tutorial-item {
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.02);
  padding: 1rem;
}

.tutorial-item-title {
  margin: 0;
  font-family: "Archivo", "Arial Black", sans-serif;
  font-size: clamp(1.05rem, 2.1vw, 1.45rem);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.tutorial-copy {
  margin: 0.85rem 0 0;
  color: var(--muted);
  font-size: 0.97rem;
  max-width: 76ch;
}

.tutorial-points {
  margin: 0.8rem 0 0;
  padding-left: 1rem;
  color: #e7e7e7;
  display: grid;
  gap: 0.45rem;
}

.tutorial-points li {
  font-size: 0.92rem;
}

.tutorial-video {
  display: block;
  width: 100%;
  max-width: 980px;
  margin-top: 0.95rem;
  background: #0d0d0d;
}

.tutorial-item-actions {
  margin-top: 0.72rem;
}

.legal-copy {
  margin-top: 1rem;
  display: grid;
  gap: 0.9rem;
  max-width: 86ch;
}

.legal-copy h3 {
  margin: 0.3rem 0 0;
  font-family: "Archivo", "Arial Black", sans-serif;
  font-size: 0.92rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.legal-copy p {
  margin: 0;
  color: #cfcfcf;
  font-size: 0.95rem;
  line-height: 1.6;
}

.article-shell {
  width: min(920px, calc(100% - 3rem));
  margin: 0 auto;
}

.article-head {
  border-bottom: 1px solid rgba(255, 255, 255, 0.11);
  padding-bottom: 1.1rem;
}

.article-title {
  margin: 0;
  font-family: "Archivo", "Arial Black", sans-serif;
  font-size: clamp(1.7rem, 4.6vw, 3rem);
  letter-spacing: 0.06em;
  line-height: 1.06;
  text-transform: uppercase;
}

.article-meta {
  margin: 0.8rem 0 0;
  color: #d8d8d8;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-family: "Archivo", "Arial Black", sans-serif;
}

.article-content {
  margin-top: 1rem;
  display: grid;
  gap: 0.95rem;
}

.article-content p {
  margin: 0;
  color: #cfcfcf;
  font-size: 1rem;
  line-height: 1.65;
}

.article-actions {
  margin-top: 1.2rem;
}

.article-back-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 8.2rem;
  padding: 0.48rem 0.88rem;
  border: 1px solid rgba(255, 255, 255, 0.58);
  border-radius: 999px;
  color: #f4f4f4;
  text-decoration: none;
  font-family: "Archivo", "Arial Black", sans-serif;
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  line-height: 1;
  text-transform: uppercase;
  transition: border-color 120ms ease, color 120ms ease, background-color 120ms ease;
}

.article-back-button:hover {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.8);
  background: rgba(255, 255, 255, 0.06);
}

.timeline-intro {
  max-width: 72ch;
}

.history-label {
  margin-top: 1.8rem;
}

.about-contact {
  margin: 1rem 0 0;
  color: #d6d6d6;
  font-size: 0.93rem;
}

.inline-email {
  color: #f2f2f2;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.55);
  padding-bottom: 0.06rem;
}

.inline-email:hover {
  border-bottom-color: #fff;
}

.timeline {
  list-style: none;
  margin: 1.8rem 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.timeline li {
  padding: 0.95rem 0;
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 0.35rem;
}

.timeline-year {
  color: #d8d8d8;
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-family: "Archivo", "Arial Black", sans-serif;
}

.timeline-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.8rem;
}

.timeline-title {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 600;
}

.timeline-link {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid rgba(245, 245, 245, 0.5);
  transition: border-color 120ms ease, color 120ms ease;
}

.timeline-link:hover {
  color: #fff;
  border-color: #fff;
}

.timeline-status {
  color: #b7b7b7;
  font-size: 0.69rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.timeline-note {
  margin: 0;
  color: #9f9f9f;
  font-size: 0.88rem;
  max-width: 76ch;
}

.site-footer {
  width: calc(100% - var(--sidebar-w) - var(--sidebar-offset));
  max-width: calc(100% - var(--sidebar-w) - var(--sidebar-offset));
  margin-left: calc(var(--sidebar-w) + var(--sidebar-offset));
  padding: 1rem clamp(1rem, 2.2vw, 2.6rem) 1.8rem;
  color: #9e9e9e;
  font-family: "Archivo", "Arial Black", sans-serif;
  font-size: 0.66rem;
  letter-spacing: 0.15em;
}

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

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

@media (min-width: 980px) {
  .product-layout {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
    gap: clamp(1.4rem, 2.4vw, 2.7rem);
  }

  .product-media {
    justify-self: end;
    width: 100%;
    max-width: min(40vw, 620px);
  }

  .step-product .display-title {
    font-size: clamp(1.5rem, 4.2vw, 3.05rem);
  }

  .step-timeline .display-title {
    font-size: clamp(1.7rem, 4.7vw, 3.55rem);
  }

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

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

  .reviews-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .timeline li {
    grid-template-columns: 110px minmax(0, 1fr);
    align-items: start;
    column-gap: 1.1rem;
  }

  .timeline-head,
  .timeline-note {
    grid-column: 2;
  }
}

@media (max-width: 900px) {
  :root {
    --mobile-nav-h: 66px;
    --mobile-nav-offset: 0.55rem;
  }

  .site-header {
    top: auto;
    left: max(0.6rem, env(safe-area-inset-left, 0px));
    right: max(0.6rem, env(safe-area-inset-right, 0px));
    bottom: calc(var(--safe-bottom) + var(--mobile-nav-offset));
    width: auto;
    min-height: var(--mobile-nav-h);
    height: var(--mobile-nav-h);
    border: 1px solid rgba(255, 255, 255, 0.09);
    border-radius: var(--nav-radius-mobile);
    flex-direction: row;
    justify-content: center;
    align-items: center;
    padding: 0.5rem 0.85rem;
    gap: 0.7rem;
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.28);
    overflow: hidden;
  }

  .brand {
    display: none;
  }

  .section-nav {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    width: min(640px, 100%);
    gap: 0.35rem;
  }

  .section-nav a {
    border-left: 0;
    border-bottom: 1px solid transparent;
    padding: 0.18rem 0.18rem 0.2rem;
    font-size: 0.58rem;
    letter-spacing: 0.1em;
    text-align: center;
  }

  .section-nav a:hover,
  .section-nav a.active {
    border-left-color: transparent;
    border-bottom-color: var(--fg);
  }

  main {
    width: 100%;
    max-width: 100%;
    margin-left: 0;
  }

  .site-footer {
    width: 100%;
    max-width: 100%;
    margin-left: 0;
    padding-bottom: calc(1.3rem + var(--mobile-nav-h) + var(--safe-bottom) + var(--mobile-nav-offset));
  }

  .step {
    min-height: calc(100svh - var(--mobile-nav-h));
    padding: clamp(1.4rem, 3.2vw, 2.1rem) 0;
  }

  .step-product .step-inner {
    width: 100%;
    margin: 0;
  }

  body:not(.detail-page) .step-product .product-media {
    display: none;
  }

  .detail-main {
    padding-bottom: calc(1.2rem + var(--mobile-nav-h) + var(--safe-bottom) + var(--mobile-nav-offset));
  }

  .detail-section {
    padding: 1.2rem 0;
  }

  .detail-section:first-child {
    padding-top: 1.5rem;
  }

  .detail-title {
    font-size: clamp(1.8rem, 10.8vw, 2.85rem);
  }

  .detail-title-inline {
    font-size: clamp(1.6rem, 9.4vw, 2.8rem);
  }

  .product-app-meta {
    gap: 0.65rem;
    margin-bottom: 0.85rem;
  }

  .product-app-meta-home {
    align-items: center;
  }

  .product-app-id {
    gap: 0.65rem;
  }

  .app-icon-product {
    width: 44px;
    height: 44px;
  }

  .app-icon-hero {
    width: 58px;
    height: 58px;
  }

  .app-name {
    font-size: 0.7rem;
    letter-spacing: 0.13em;
  }

  .app-get-button {
    min-width: 3rem;
    padding: 0.24rem 0.62rem;
    font-size: 0.62rem;
  }

  .detail-gallery-grid-tablet {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .detail-gallery-grid-samples {
    grid-template-columns: minmax(0, 1fr);
  }

  .detail-gallery-grid-demos {
    grid-template-columns: minmax(0, 1fr);
  }

  .tutorials-mini-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .display-title {
    font-size: clamp(1.45rem, 8.8vw, 2.65rem);
  }

  .intro-hero-title {
    font-size: clamp(1.7rem, 9.6vw, 3.2rem);
  }
}