:root {
  color-scheme: dark;
  --color-bg: #080b0d;
  --color-bg-soft: #0d1215;
  --color-surface: #11181c;
  --color-surface-raised: #151e23;
  --color-border: #263238;
  --color-border-strong: #3b4a50;
  --color-text: #f3f7f5;
  --color-muted: #aab7b6;
  --color-subtle: #7f8d8c;
  --color-accent: #8eea36;
  --color-accent-dark: #69bd20;
  --color-accent-soft: rgba(142, 234, 54, 0.1);
  --color-info: #8ecae6;
  --content-wide: 1180px;
  --content-copy: 820px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 8px 24px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 24px 70px rgba(0, 0, 0, 0.32);
  --space-section: clamp(4.5rem, 8vw, 7.5rem);
  --transition: 180ms ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 80% 0%, rgba(142, 234, 54, 0.06), transparent 28rem),
    var(--color-bg);
  color: var(--color-text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  color: #b2ff69;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--color-info);
  outline-offset: 4px;
  border-radius: 4px;
}

h1,
h2,
h3 {
  margin-top: 0;
  line-height: 1.15;
  letter-spacing: -0.025em;
}

h1 {
  font-size: clamp(2.8rem, 7vw, 5.7rem);
}

h2 {
  font-size: clamp(2rem, 4vw, 3.25rem);
}

h3 {
  font-size: 1.15rem;
}

p {
  margin-top: 0;
}

code {
  padding: 0.18rem 0.45rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: #070a0c;
  color: var(--color-accent);
  font: 0.92em ui-monospace, SFMono-Regular, Consolas, monospace;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.7rem 1rem;
  transform: translateY(-150%);
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  color: #071006;
  font-weight: 800;
}

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

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  border-bottom: 1px solid rgba(59, 74, 80, 0.65);
  background: rgba(8, 11, 13, 0.88);
  backdrop-filter: blur(18px);
}

.nav-shell {
  display: flex;
  max-width: var(--content-wide);
  min-height: 4.75rem;
  margin: 0 auto;
  padding: 0 1.5rem;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 0.7rem;
  color: var(--color-text);
  font-size: 1.12rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand img {
  width: 2rem;
  height: 2rem;
  border-radius: 8px;
}

.brand-green {
  color: var(--color-accent);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.site-nav a {
  padding: 0.6rem 0.72rem;
  border-radius: 8px;
  color: var(--color-muted);
  font-size: 0.91rem;
  font-weight: 650;
  text-decoration: none;
  white-space: nowrap;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  background: rgba(255, 255, 255, 0.055);
  color: var(--color-text);
}

.site-nav .nav-cta {
  margin-left: 0.35rem;
  padding-inline: 1rem;
  background: var(--color-accent);
  color: #071006;
}

.site-nav .nav-cta:hover {
  background: #a2f555;
  color: #071006;
}

.container {
  width: min(calc(100% - 3rem), var(--content-wide));
  margin-inline: auto;
}

.copy-container {
  width: min(calc(100% - 3rem), var(--content-copy));
  margin-inline: auto;
}

.section {
  padding-block: var(--space-section);
}

.section--tinted {
  border-block: 1px solid rgba(38, 50, 56, 0.7);
  background: var(--color-bg-soft);
}

.section-heading {
  max-width: 720px;
  margin: 0 auto 3rem;
  text-align: center;
}

.section-heading .eyebrow {
  margin-bottom: 0.75rem;
}

.section-heading h2 {
  margin-bottom: 1rem;
}

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

.eyebrow {
  display: block;
  color: var(--color-accent);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.button {
  display: inline-flex;
  min-height: 3.15rem;
  padding: 0.8rem 1.35rem;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  box-shadow: 0 8px 24px rgba(105, 189, 32, 0.16);
  color: #071006;
  font-weight: 800;
  text-decoration: none;
  transition: transform var(--transition), background var(--transition), box-shadow var(--transition);
}

.button:hover {
  transform: translateY(-2px);
  background: #a2f555;
  box-shadow: 0 12px 30px rgba(105, 189, 32, 0.22);
  color: #071006;
}

.button--secondary {
  border-color: var(--color-border-strong);
  background: rgba(255, 255, 255, 0.025);
  box-shadow: none;
  color: var(--color-text);
}

.button--secondary:hover {
  border-color: var(--color-muted);
  background: rgba(255, 255, 255, 0.065);
  box-shadow: none;
  color: var(--color-text);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(4.5rem, 8vw, 7.5rem) 0;
  border-bottom: 1px solid var(--color-border);
}

.hero::before {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(142, 234, 54, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(142, 234, 54, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black, transparent 85%);
  content: "";
  pointer-events: none;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(340px, 0.8fr);
  align-items: center;
  gap: clamp(3rem, 8vw, 7rem);
}

.hero-copy h1 {
  max-width: 760px;
  margin: 1rem 0 1.5rem;
}

.hero-copy h1 em {
  color: var(--color-accent);
  font-style: normal;
}

.hero-copy > p {
  max-width: 680px;
  margin-bottom: 2rem;
  color: var(--color-muted);
  font-size: clamp(1.08rem, 2vw, 1.3rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.trust-line {
  display: flex;
  margin-top: 1.65rem;
  align-items: center;
  gap: 0.7rem;
  color: var(--color-subtle);
  font-size: 0.88rem;
}

.status-dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 5px var(--color-accent-soft);
}

.hero-product {
  position: relative;
  max-width: 460px;
  margin-inline: auto;
}

.hero-icon {
  position: absolute;
  z-index: 2;
  top: -2.2rem;
  right: -1.4rem;
  width: 5.5rem;
  border: 1px solid var(--color-border-strong);
  border-radius: 22px;
  box-shadow: var(--shadow-lg);
}

.product-window {
  overflow: hidden;
  padding: 0.7rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, #192328, #0c1114);
  box-shadow: var(--shadow-lg);
  transform: rotate(1.5deg);
}

.product-window img {
  width: 100%;
  border-radius: 17px;
}

.metric-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-bottom: 1px solid var(--color-border);
  background: #0b1012;
}

.metric {
  padding: 1.7rem 1rem;
  text-align: center;
}

.metric + .metric {
  border-left: 1px solid var(--color-border);
}

.metric strong {
  display: block;
  color: var(--color-text);
  font-size: 1.05rem;
}

.metric span {
  color: var(--color-subtle);
  font-size: 0.82rem;
}

.card-grid,
.feature-grid,
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
}

.card {
  padding: clamp(1.4rem, 3vw, 2rem);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, rgba(21, 30, 35, 0.94), rgba(13, 18, 21, 0.94));
  box-shadow: var(--shadow-sm);
}

.card h3 {
  margin-bottom: 0.75rem;
}

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

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

.problem-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

.problem-card {
  position: relative;
  overflow: hidden;
}

.problem-card::after {
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--color-accent);
  content: "";
}

.video-frame {
  max-width: 980px;
  margin: 0 auto;
  padding: 0.7rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-lg);
}

.video-frame iframe {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 0;
  border-radius: var(--radius-md);
}

.step-card {
  position: relative;
  padding-top: 4.2rem;
}

.step-number {
  position: absolute;
  top: 1.35rem;
  left: 1.5rem;
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border-radius: 50%;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  font-size: 0.8rem;
  font-weight: 800;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.25rem;
  align-items: start;
}

.screenshot-card {
  grid-column: span 4;
  overflow: hidden;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: #0d1316;
  box-shadow: var(--shadow-sm);
}

.screenshot-card--wide {
  grid-column: span 6;
}

.screenshot-label {
  display: flex;
  padding: 1rem 1.15rem;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--color-border);
}

.screenshot-label strong {
  font-size: 0.92rem;
}

.screenshot-label span {
  color: var(--color-subtle);
  font-size: 0.75rem;
  text-transform: uppercase;
}

.screenshot-canvas {
  display: grid;
  min-height: 32rem;
  padding: 1.4rem 1rem 0;
  place-items: start center;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 0, rgba(142, 234, 54, 0.1), transparent 55%),
    #080c0e;
}

.screenshot-card--wide .screenshot-canvas {
  min-height: 0;
  padding: 1rem;
  place-items: center;
}

.screenshot-canvas img {
  width: auto;
  max-height: 34rem;
  border: 1px solid #334046;
  border-radius: 18px 18px 0 0;
  box-shadow: 0 22px 55px rgba(0, 0, 0, 0.42);
}

.screenshot-card--wide img {
  width: 100%;
  max-height: none;
  border-radius: 12px;
}

.feature-card {
  min-height: 11rem;
}

.feature-icon {
  display: grid;
  width: 2.5rem;
  height: 2.5rem;
  margin-bottom: 1.25rem;
  place-items: center;
  border: 1px solid rgba(142, 234, 54, 0.22);
  border-radius: 10px;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  font-size: 0.8rem;
  font-weight: 850;
  letter-spacing: 0.04em;
}

.platform-list {
  display: flex;
  max-width: 930px;
  margin: 0 auto;
  padding: 0;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.7rem;
  list-style: none;
}

.platform-list li {
  padding: 0.72rem 1.1rem;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-surface);
  color: var(--color-muted);
  font-size: 0.92rem;
  font-weight: 700;
}

.reviews {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
  max-width: 960px;
  margin: 3rem auto 0;
}

.review-stars {
  margin-bottom: 0.8rem;
  color: var(--color-accent);
  letter-spacing: 0.15em;
}

.review blockquote {
  margin: 0;
  color: var(--color-text);
  font-size: 1.04rem;
}

.review cite {
  display: block;
  margin-top: 1rem;
  color: var(--color-subtle);
  font-size: 0.85rem;
  font-style: normal;
}

.cta-panel {
  display: flex;
  padding: clamp(2rem, 5vw, 3.5rem);
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  border: 1px solid rgba(142, 234, 54, 0.26);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(110deg, rgba(142, 234, 54, 0.1), transparent 45%),
    var(--color-surface);
}

.cta-panel h2 {
  max-width: 690px;
  margin-bottom: 0.65rem;
  font-size: clamp(1.65rem, 3vw, 2.5rem);
}

.cta-panel p {
  margin: 0;
  color: var(--color-muted);
}

.page-hero {
  padding: clamp(4rem, 8vw, 6.5rem) 0;
  border-bottom: 1px solid var(--color-border);
  background:
    linear-gradient(135deg, rgba(142, 234, 54, 0.08), transparent 36%),
    var(--color-bg-soft);
}

.page-hero .copy-container {
  text-align: center;
}

.page-hero h1 {
  margin: 0.7rem 0 1rem;
  font-size: clamp(2.65rem, 6vw, 4.5rem);
}

.page-hero p {
  max-width: 650px;
  margin: 0 auto;
  color: var(--color-muted);
  font-size: 1.12rem;
}

.effective-date {
  display: inline-block;
  margin-top: 1.35rem;
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  color: var(--color-muted);
  font-size: 0.82rem;
}

.content-layout {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr);
  gap: 3rem;
  padding-block: 4.5rem;
  align-items: start;
}

.side-nav {
  position: sticky;
  top: 6.5rem;
}

.side-nav strong {
  display: block;
  margin-bottom: 0.8rem;
  color: var(--color-subtle);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.side-nav a {
  display: block;
  padding: 0.45rem 0;
  color: var(--color-muted);
  font-size: 0.88rem;
  text-decoration: none;
}

.side-nav a:hover {
  color: var(--color-accent);
}

.article-stack {
  min-width: 0;
}

.article-card {
  padding: clamp(1.5rem, 4vw, 2.4rem);
  border-bottom: 1px solid var(--color-border);
}

.article-card:first-child {
  padding-top: 0;
}

.article-card:last-child {
  border-bottom: 0;
}

.article-card h2 {
  margin-bottom: 1rem;
  font-size: clamp(1.35rem, 3vw, 1.7rem);
}

.article-card h3 {
  margin-top: 2rem;
  color: var(--color-accent);
}

.article-card p,
.article-card li {
  color: #c1ccca;
}

.article-card ul,
.article-card ol {
  padding-left: 1.35rem;
}

.article-card li {
  margin-bottom: 0.55rem;
  padding-left: 0.25rem;
}

.faq-list {
  display: grid;
  gap: 1rem;
  padding-block: 4.5rem;
}

.faq-card {
  padding: clamp(1.5rem, 4vw, 2.2rem);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.faq-card h2 {
  margin-bottom: 0.9rem;
  font-size: clamp(1.25rem, 3vw, 1.55rem);
}

.faq-card h3 {
  margin-top: 1.8rem;
  color: var(--color-accent);
}

.faq-card p,
.faq-card li {
  color: #c1ccca;
}

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

.faq-card li {
  margin-bottom: 0.45rem;
}

.guide {
  padding-block: 4.5rem;
}

.guide-intro {
  margin-bottom: 2rem;
}

.onboarding-list {
  margin: 0;
  padding: 0;
  counter-reset: onboarding;
  list-style: none;
}

.onboarding-list > li {
  position: relative;
  min-height: 5.5rem;
  margin-left: 1.25rem;
  padding: 0 0 2rem 4rem;
  border-left: 1px solid var(--color-border-strong);
  counter-increment: onboarding;
}

.onboarding-list > li:last-child {
  border-left-color: transparent;
}

.onboarding-list > li::before {
  position: absolute;
  top: 0;
  left: -1.25rem;
  display: grid;
  width: 2.5rem;
  height: 2.5rem;
  place-items: center;
  border: 1px solid rgba(142, 234, 54, 0.35);
  border-radius: 50%;
  background: #10191c;
  color: var(--color-accent);
  font-weight: 800;
  content: counter(onboarding);
}

.onboarding-list strong {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--color-text);
}

.onboarding-list span {
  color: var(--color-muted);
}

.notice {
  margin-top: 2rem;
  padding: clamp(1.5rem, 4vw, 2.2rem);
  border: 1px solid rgba(142, 234, 54, 0.28);
  border-radius: var(--radius-md);
  background: var(--color-accent-soft);
}

.notice__label {
  display: block;
  margin-bottom: 0.6rem;
  color: var(--color-accent);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.notice p:last-of-type {
  margin-bottom: 1.5rem;
}

.notice img {
  width: 100%;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
}

.page-actions {
  display: flex;
  margin-top: 2.5rem;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.guide-card {
  display: grid;
  max-width: 920px;
  margin-inline: auto;
  padding: clamp(1.6rem, 4vw, 2.5rem);
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 2rem;
  border: 1px solid rgba(142, 234, 54, 0.24);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(110deg, rgba(142, 234, 54, 0.1), transparent 58%),
    var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.guide-list {
  display: grid;
  gap: 1.25rem;
}

.guide-card h3 {
  margin: 0.65rem 0 0.8rem;
  font-size: clamp(1.55rem, 3vw, 2.2rem);
}

.guide-card p {
  max-width: 650px;
  margin: 0;
  color: var(--color-muted);
}

.app-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.app-card {
  --app-primary: var(--color-accent);
  --app-secondary: var(--color-accent-dark);
  --app-border: rgba(142, 234, 54, 0.25);
  --app-border-hover: rgba(142, 234, 54, 0.42);
  --app-glow: rgba(142, 234, 54, 0.12);
  --app-mark-bg: var(--color-accent-soft);
  display: grid;
  min-width: 0;
  padding: clamp(1.4rem, 3vw, 2rem);
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: 1rem 1.15rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 0 0, var(--app-glow), transparent 16rem),
    var(--color-surface);
  box-shadow: var(--shadow-sm);
  color: inherit;
  text-decoration: none;
  transition: border-color 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}

.app-card:hover {
  border-color: var(--app-border-hover);
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.24), 0 12px 36px var(--app-glow);
  transform: translateY(-3px);
}

.app-card:focus-visible {
  outline: 3px solid var(--app-primary);
  outline-offset: 3px;
}

.app-card__mark {
  display: grid;
  width: 3rem;
  height: 3rem;
  place-items: center;
  border: 1px solid var(--app-border);
  border-radius: var(--radius-md);
  background: var(--app-mark-bg);
  color: var(--app-primary);
  font-size: 0.8rem;
  font-weight: 850;
  letter-spacing: 0.06em;
}

.app-card__content {
  display: grid;
  min-width: 0;
  gap: 0.45rem;
}

.app-card__content strong {
  color: var(--color-text);
  font-size: 1.35rem;
  line-height: 1.2;
}

.app-card__content > span {
  color: var(--color-muted);
}

.app-card__cta {
  display: inline-flex;
  grid-column: 2;
  align-items: center;
  gap: 0.4rem;
  color: var(--app-primary);
  font-size: 0.86rem;
  font-weight: 800;
}

.app-card__cta span {
  transition: transform 160ms ease;
}

.app-card:hover .app-card__cta span {
  transform: translateX(3px);
}

.app-card--uptilink {
  --app-primary: #63d3ff;
  --app-secondary: #32e0c4;
  --app-border: rgba(83, 196, 255, 0.3);
  --app-border-hover: rgba(99, 211, 255, 0.58);
  --app-glow: rgba(55, 191, 255, 0.13);
  --app-mark-bg: linear-gradient(135deg, rgba(55, 191, 255, 0.15), rgba(50, 224, 196, 0.11));
}

.app-card--certstat {
  --app-primary: #5bbdff;
  --app-secondary: #22d89a;
  --app-border: rgba(49, 150, 222, 0.34);
  --app-border-hover: rgba(34, 216, 154, 0.5);
  --app-glow: rgba(29, 145, 255, 0.13);
  --app-mark-bg: linear-gradient(135deg, rgba(29, 145, 255, 0.16), rgba(34, 216, 154, 0.1));
}

.app-card--uptilink .app-card__cta,
.app-card--certstat .app-card__cta {
  background-image: linear-gradient(120deg, var(--app-primary), var(--app-secondary));
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}

.article-hero {
  padding: clamp(4.5rem, 9vw, 7.5rem) 0;
  border-bottom: 1px solid var(--color-border);
  background:
    radial-gradient(circle at 80% 20%, rgba(142, 234, 54, 0.09), transparent 28rem),
    linear-gradient(135deg, rgba(142, 234, 54, 0.08), transparent 42%),
    var(--color-bg-soft);
}

.article-hero__inner {
  max-width: 900px;
}

.article-hero h1 {
  max-width: 880px;
  margin: 0.85rem 0 1.25rem;
  font-size: clamp(2.7rem, 6vw, 4.8rem);
}

.article-hero__dek {
  max-width: 760px;
  color: #cbd5d3;
  font-size: clamp(1.08rem, 2vw, 1.28rem);
}

.article-meta {
  display: flex;
  margin-top: 1.5rem;
  flex-wrap: wrap;
  gap: 0.45rem 1.2rem;
  color: var(--color-subtle);
  font-size: 0.85rem;
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 760px) 220px;
  padding-block: clamp(3.5rem, 7vw, 6rem);
  justify-content: center;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: start;
}

.article-body {
  min-width: 0;
}

.article-body > p,
.article-body li {
  color: #c8d2d0;
}

.article-body > p {
  font-size: 1.04rem;
}

.article-body h2 {
  margin: 3.5rem 0 1rem;
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
}

.article-body h2:first-child {
  margin-top: 0;
}

.article-body h3 {
  margin: 2rem 0 0.65rem;
  font-size: 1.25rem;
}

.article-body li {
  margin-bottom: 0.55rem;
}

.article-body a {
  font-weight: 700;
}

.article-aside {
  position: sticky;
  top: 6.5rem;
  padding: 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.article-aside strong {
  display: block;
  margin-bottom: 0.75rem;
  color: var(--color-subtle);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.article-aside a {
  display: block;
  padding: 0.35rem 0;
  color: var(--color-muted);
  font-size: 0.86rem;
  text-decoration: none;
}

.article-aside a:hover {
  color: var(--color-accent);
}

.article-summary,
.article-note {
  margin: 2rem 0;
  padding: clamp(1.4rem, 4vw, 2rem);
  border-radius: var(--radius-md);
}

.article-summary {
  border: 1px solid rgba(142, 234, 54, 0.28);
  background: var(--color-accent-soft);
}

.article-summary strong {
  display: block;
  margin-bottom: 0.55rem;
  color: var(--color-accent);
}

.article-summary p:last-child,
.article-note p:last-child {
  margin-bottom: 0;
}

.article-note {
  border: 1px solid rgba(142, 202, 230, 0.3);
  background: rgba(142, 202, 230, 0.07);
}

.article-note strong {
  color: var(--color-info);
}

.architecture-grid,
.article-plan {
  display: grid;
  margin: 2rem 0;
  gap: 1rem;
}

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

.architecture-card,
.article-step {
  padding: 1.4rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.architecture-card span {
  display: grid;
  width: 2rem;
  height: 2rem;
  margin-bottom: 1rem;
  place-items: center;
  border-radius: 50%;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  font-size: 0.78rem;
  font-weight: 850;
}

.architecture-card h3,
.article-step h3 {
  margin: 0 0 0.45rem;
}

.architecture-card p,
.article-step p {
  margin: 0;
  color: var(--color-muted);
}

.article-plan {
  counter-reset: article-step;
}

.article-step {
  position: relative;
  padding-left: 4.4rem;
  counter-increment: article-step;
}

.article-step::before {
  position: absolute;
  top: 1.35rem;
  left: 1.35rem;
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border-radius: 50%;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  font-size: 0.8rem;
  font-weight: 850;
  content: counter(article-step);
}

.article-figure {
  margin: 2.5rem 0;
  padding: 0.65rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.article-figure img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
}

.article-figure figcaption {
  padding: 0.85rem 0.55rem 0.25rem;
  color: var(--color-subtle);
  font-size: 0.82rem;
  text-align: center;
}

.tutorial-step {
  display: grid;
  margin: 2.5rem 0 4rem;
  grid-template-columns: minmax(0, 1fr) minmax(250px, 340px);
  align-items: start;
  gap: clamp(1.5rem, 5vw, 3.5rem);
}

.tutorial-step__copy h2 {
  margin-top: 0;
}

.tutorial-step__copy > :last-child {
  margin-bottom: 0;
}

.tutorial-step .article-figure {
  width: 100%;
  max-width: 340px;
  margin: 0 auto;
}

.tutorial-step .article-figure img {
  display: block;
  aspect-ratio: 1080 / 2340;
  object-fit: contain;
}

.article-faq {
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
}

.article-faq section {
  padding: 1.4rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.article-faq h3 {
  margin: 0 0 0.65rem;
}

.article-faq p {
  margin: 0;
  color: var(--color-muted);
}

.article-sources {
  margin-bottom: 3rem;
}

.site-footer {
  border-top: 1px solid var(--color-border);
  background: #070a0c;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  padding-block: 3rem;
  align-items: start;
  gap: 2rem;
}

.footer-copy p {
  max-width: 430px;
  margin: 0.9rem 0 0;
  color: var(--color-subtle);
  font-size: 0.88rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.75rem 1.25rem;
}

.footer-links a {
  color: var(--color-muted);
  font-size: 0.88rem;
  text-decoration: none;
}

.footer-meta {
  padding: 1.15rem 0;
  border-top: 1px solid var(--color-border);
  color: var(--color-subtle);
  font-size: 0.8rem;
  text-align: center;
}

@media (max-width: 900px) {
  .nav-shell {
    padding-block: 0.7rem;
    align-items: flex-start;
    flex-direction: column;
    gap: 0.5rem;
  }

  .site-nav {
    width: 100%;
    padding-bottom: 0.1rem;
    overflow-x: auto;
    scrollbar-width: thin;
  }

  .site-nav a {
    padding-inline: 0.65rem;
  }

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

  .hero-copy {
    text-align: center;
  }

  .hero-copy > p {
    margin-inline: auto;
  }

  .hero-actions,
  .trust-line {
    justify-content: center;
  }

  .hero-product {
    width: min(88%, 500px);
  }

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

  .screenshot-card {
    grid-column: span 6;
  }

  .screenshot-card--wide {
    grid-column: span 12;
  }

  .content-layout {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .article-layout {
    grid-template-columns: minmax(0, 760px);
  }

  .tutorial-step {
    grid-template-columns: minmax(0, 1fr) minmax(230px, 300px);
  }

  .article-aside {
    display: none;
  }

  .side-nav {
    position: static;
    display: none;
  }
}

@media (max-width: 620px) {
  :root {
    --space-section: 4rem;
  }

  .container,
  .copy-container {
    width: min(calc(100% - 2rem), var(--content-wide));
  }

  .site-header {
    position: static;
  }

  .nav-shell {
    padding-inline: 1rem;
  }

  .site-nav .nav-cta {
    margin-left: 0;
  }

  .hero {
    padding-top: 3.5rem;
  }

  .hero-actions .button {
    width: 100%;
  }

  .hero-icon {
    top: -1.5rem;
    right: -0.8rem;
    width: 4.5rem;
  }

  .metric-strip {
    grid-template-columns: 1fr;
  }

  .metric + .metric {
    border-top: 1px solid var(--color-border);
    border-left: 0;
  }

  .problem-grid,
  .card-grid,
  .feature-grid,
  .steps-grid,
  .reviews,
  .app-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .guide-card,
  .architecture-grid,
  .tutorial-step {
    grid-template-columns: 1fr;
  }

  .tutorial-step {
    margin-bottom: 3.5rem;
  }

  .tutorial-step .article-figure {
    max-width: 310px;
  }

  .guide-card .button {
    width: 100%;
  }

  .screenshot-card,
  .screenshot-card--wide {
    grid-column: span 12;
  }

  .screenshot-canvas {
    min-height: 27rem;
  }

  .cta-panel {
    align-items: flex-start;
    flex-direction: column;
  }

  .cta-panel .button {
    width: 100%;
  }

  .onboarding-list > li {
    margin-left: 0.9rem;
    padding-left: 3rem;
  }

  .onboarding-list > li::before {
    left: -1.05rem;
    width: 2.1rem;
    height: 2.1rem;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

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

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}