:root {
  --ink: #101527;
  --muted: #5d6475;
  --blue: #073fd7;
  --cyan: #32b8ff;
  --lime: #bfff31;
  --paper: #f7f9ff;
  --line: #dce4f2;
  --white: #ffffff;
  --max: 72rem;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  color-scheme: light;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "DM Sans", Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

a { color: var(--blue); text-underline-offset: .2em; }
a:hover { text-decoration-thickness: .14em; }
a:focus-visible, button:focus-visible {
  outline: .2rem solid var(--lime);
  outline-offset: .25rem;
}

.skip-link {
  position: fixed;
  z-index: 50;
  top: .75rem;
  left: .75rem;
  padding: .65rem 1rem;
  color: var(--white);
  background: var(--ink);
  transform: translateY(-180%);
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  border-bottom: 1px solid color-mix(in srgb, var(--line) 80%, transparent);
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(14px);
}

.nav {
  width: min(calc(100% - 2rem), var(--max));
  min-height: 4.75rem;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  color: var(--ink);
  font-weight: 800;
  letter-spacing: -.025em;
  text-decoration: none;
}
.brand img { width: 2.4rem; height: 2.4rem; border-radius: .6rem; }
.nav-links { display: flex; flex-wrap: wrap; gap: .35rem 1.2rem; }
.nav-links a { color: var(--ink); font-size: .93rem; font-weight: 700; text-decoration: none; }
.nav-links a[aria-current="page"] { color: var(--blue); }
.nav-links .language-link {
  min-width: 2.35rem;
  padding: .2rem .55rem;
  border: 1px solid var(--blue);
  color: var(--blue);
  text-align: center;
}
.hero .language-link { border-color: var(--white); color: var(--white); }

.hero {
  position: relative;
  overflow: hidden;
  min-height: 41rem;
  display: grid;
  align-items: center;
  color: var(--white);
  background: var(--blue);
}
.hero::before {
  content: "";
  position: absolute;
  inset: -30% 25% 35% -15%;
  border: 1.2rem solid color-mix(in srgb, var(--cyan) 72%, transparent);
  border-radius: 50%;
  transform: rotate(-9deg);
}
.hero-grid {
  position: relative;
  width: min(calc(100% - 2rem), var(--max));
  margin: auto;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(18rem, .85fr);
  align-items: center;
  gap: clamp(2rem, 7vw, 7rem);
  padding: 6rem 0;
}
.eyebrow {
  margin: 0 0 1rem;
  font-size: .8rem;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.hero h1, .page-hero h1 {
  max-width: 15ch;
  margin: 0;
  font-family: Manrope, "DM Sans", system-ui, sans-serif;
  font-size: clamp(3.1rem, 7.4vw, 6.5rem);
  font-weight: 500;
  line-height: .96;
  letter-spacing: -.06em;
}
.hero .hero-title {
  display: flex;
  flex-direction: column;
  gap: .18em;
  max-width: none;
  font-size: clamp(2.35rem, 5.5vw, 4.8rem);
  line-height: .94;
}
.hero-title span {
  display: block;
  white-space: nowrap;
}
.hero .lead { max-width: 37rem; margin: 1.6rem 0 0; font-size: clamp(1.1rem, 2vw, 1.35rem); }
.cta-row { display: flex; flex-wrap: wrap; gap: .85rem; margin-top: 2rem; }
.button {
  display: inline-flex;
  min-height: 3.25rem;
  align-items: center;
  justify-content: center;
  padding: .75rem 1.2rem;
  border: 2px solid transparent;
  color: var(--ink);
  background: var(--lime);
  font-weight: 800;
  text-decoration: none;
}
.button.secondary { border-color: color-mix(in srgb, var(--white) 60%, transparent); color: var(--white); background: transparent; }

.route-card {
  position: relative;
  padding: 1.5rem;
  color: var(--ink);
  background: var(--white);
  box-shadow: 1.2rem 1.2rem 0 var(--cyan);
  transform: rotate(2deg);
}
.route-card img { width: 5.5rem; height: 5.5rem; border-radius: 1.35rem; }
.route-card ol { margin: 1.4rem 0 0; padding: 0; list-style: none; counter-reset: route; }
.route-card li {
  counter-increment: route;
  display: grid;
  grid-template-columns: 2.3rem 1fr;
  gap: .75rem;
  align-items: start;
  padding: 1rem 0;
  border-top: 1px solid var(--line);
}
.route-card li::before {
  content: counter(route);
  width: 2rem;
  height: 2rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: var(--white);
  background: var(--blue);
  font-weight: 800;
}

.section { padding: clamp(4rem, 9vw, 8rem) 0; }
.section-inner, .legal-layout, .page-hero-inner, .site-footer-inner {
  width: min(calc(100% - 2rem), var(--max));
  margin: auto;
}
.section[id] { scroll-margin-top: 5.5rem; }
.section h2, .legal-content h2 {
  margin: 0 0 1rem;
  font-family: Manrope, "DM Sans", system-ui, sans-serif;
  font-size: clamp(2.15rem, 4.6vw, 4.2rem);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -.052em;
}
.section-intro { max-width: 46rem; color: var(--muted); font-size: 1.15rem; }
.proof-grid {
  margin-top: 3rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--line);
  background: var(--white);
}
.proof { min-height: 15rem; padding: 1.7rem; border-right: 1px solid var(--line); }
.proof:last-child { border-right: 0; }
.proof strong { display: block; margin-bottom: .75rem; font-size: 1.3rem; }
.proof p { color: var(--muted); }
.proof .number { display: block; margin-bottom: 2.5rem; color: var(--blue); font-weight: 800; }

.compatibility { background: var(--white); }
.compatibility-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2.5rem;
}
.compatibility-grid article { padding: 1.5rem; border: 1px solid var(--line); background: #f7f8fb; }
.compatibility-grid strong { display: block; margin: .8rem 0 .45rem; font-size: 1.25rem; }
.compatibility-grid p { margin-bottom: 0; color: var(--muted); }
.compatibility-state { display: inline-block; padding: .35rem .55rem; font-size: .76rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.compatibility-state.is-supported { color: #08723e; background: #dff7e9; }
.compatibility-state.is-recommended { color: #075eb3; background: #e2efff; }
.compatibility-state.is-unavailable { color: #a13a20; background: #ffebe4; }

.manual { overflow: hidden; background: #eaf1ff; }
.manual-layout {
  display: grid;
  grid-template-columns: minmax(0, .82fr) minmax(28rem, 1.18fr);
  gap: clamp(3rem, 8vw, 7rem);
  align-items: center;
}
.manual-copy { max-width: 33rem; }
.manual-copy > .button { margin-top: 1.5rem; }
.manual-list {
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid #bdcce7;
}
.manual-list li {
  position: relative;
  padding: .8rem 0 .8rem 1.6rem;
  border-bottom: 1px solid #bdcce7;
}
.manual-list li::before {
  content: "";
  position: absolute;
  top: 1.25rem;
  left: .15rem;
  width: .55rem;
  height: .55rem;
  border-radius: 50%;
  background: var(--blue);
}
.screenshot-gallery {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.4rem;
  align-items: start;
}
.app-shot {
  margin: 0;
  padding: .65rem;
  border: 1px solid var(--line);
  background: var(--white);
  box-shadow: .8rem .8rem 0 var(--cyan);
  transform: rotate(-1.5deg);
}
.app-shot:nth-child(even) { margin-top: 3rem; transform: rotate(1.5deg); }
.app-shot img { display: block; width: 100%; height: auto; border-radius: 1.1rem; }
.app-shot figcaption { padding: .8rem .35rem .3rem; color: var(--muted); font-size: .9rem; line-height: 1.4; }

.migration { background: var(--white); }
.prefix-examples {
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
  margin-top: 1.7rem;
}
.prefix-examples span { padding: .65rem .85rem; border: 1px solid var(--line); background: #f7f8fb; }
.prefix-examples strong { color: var(--blue); }
.migration-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 3rem;
  border: 1px solid var(--line);
}
.migration-steps article { padding: 1.6rem; border-right: 1px solid var(--line); }
.migration-steps article:last-child { border-right: 0; }
.migration-steps span {
  display: grid;
  place-items: center;
  width: 2.4rem;
  height: 2.4rem;
  margin-bottom: 1.4rem;
  border-radius: 50%;
  color: var(--white);
  background: var(--blue);
  font-weight: 800;
}
.migration-steps strong { display: block; font-size: 1.2rem; }
.migration-steps p { color: var(--muted); }
.migration-visual {
  display: grid;
  grid-template-columns: minmax(12rem, .8fr) auto minmax(12rem, .8fr) minmax(22rem, 1.4fr);
  gap: 1.5rem;
  align-items: center;
  margin-top: 2.5rem;
}
.folder-tree {
  display: grid;
  gap: .55rem;
  padding: 1.35rem;
  border: 1px solid var(--line);
  background: #f7f8fb;
}
.folder-tree.is-new { border-color: var(--cyan); background: #eaf7ff; }
.tree-label { color: var(--blue); font-size: .78rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.tree-child { padding-left: 1.4rem; color: var(--muted); }
.migration-arrow { color: var(--blue); font-size: 2.2rem; }
.migration-screens { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.migration-screens figure { margin: 0; padding: .5rem; border: 1px solid var(--line); background: var(--white); box-shadow: .55rem .55rem 0 var(--cyan); }
.migration-screens img { display: block; width: 100%; height: auto; border-radius: .8rem; }
.migration-screens figcaption { padding: .6rem .25rem .2rem; color: var(--muted); font-size: .85rem; text-align: center; }

.contrast { color: var(--white); background: var(--ink); }
.contrast .section-intro { color: #c8cedc; }
.principles { display: grid; grid-template-columns: .8fr 1.2fr; gap: 4rem; align-items: start; }
.principle-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid #3b4255; }
.principle-list li { padding: 1.25rem 0; border-bottom: 1px solid #3b4255; }
.principle-list strong { display: block; color: var(--lime); }

.notice { margin-top: 2rem; padding: 1.1rem 1.25rem; border-left: .35rem solid var(--lime); background: #edf3ff; }
.notice strong { display: block; }

.page-hero { color: var(--white); background: var(--blue); }
.page-hero-inner { padding: clamp(4rem, 10vw, 8rem) 0; }
.page-hero h1 { max-width: 18ch; font-size: clamp(2.9rem, 6.4vw, 5.6rem); }
.page-hero p { max-width: 45rem; margin: 1.5rem 0 0; font-size: 1.15rem; }

.legal-layout {
  display: grid;
  grid-template-columns: 16rem minmax(0, 1fr);
  gap: clamp(2rem, 7vw, 6rem);
  padding: 4rem 0 7rem;
}
.legal-nav { position: sticky; top: 6.5rem; align-self: start; }
.legal-nav strong { display: block; margin-bottom: .8rem; }
.legal-nav a { display: block; padding: .35rem 0; color: var(--muted); font-size: .93rem; text-decoration: none; }
.legal-content { max-width: 49rem; }
.legal-content h2 { margin-top: 3.5rem; font-size: clamp(1.75rem, 3.6vw, 2.6rem); font-weight: 600; letter-spacing: -.04em; }
.legal-content h2:first-child { margin-top: 0; }
.legal-content h3 { margin: 2rem 0 .5rem; font-size: 1.2rem; }
.legal-content p, .legal-content li { color: #343a49; }
.legal-content li + li { margin-top: .45rem; }
.meta { margin: 0 0 2rem; color: var(--muted); font-size: .9rem; }

.site-footer { padding: 3rem 0; color: #c8cedc; background: var(--ink); }
.site-footer-inner { display: grid; grid-template-columns: 1fr auto; gap: 2rem; align-items: end; }
.site-footer strong { color: var(--white); }
.footer-links { display: flex; flex-wrap: wrap; gap: .5rem 1rem; justify-content: flex-end; }
.footer-links a { color: var(--white); }

@media (max-width: 760px) {
  .nav { align-items: flex-start; padding: .8rem 0; }
  .nav-links { justify-content: flex-end; gap: .25rem .75rem; }
  .hero-grid, .principles, .legal-layout, .manual-layout { grid-template-columns: 1fr; }
  .hero { min-height: auto; }
  .hero-grid { padding: 4.5rem 0 5rem; }
  .route-card { box-shadow: .7rem .7rem 0 var(--cyan); }
  .manual-copy { max-width: none; }
  .app-shot { box-shadow: .55rem .55rem 0 var(--cyan); }
  .proof-grid { grid-template-columns: 1fr; }
  .compatibility-grid { grid-template-columns: 1fr; }
  .proof { min-height: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .proof:last-child { border-bottom: 0; }
  .migration-steps { grid-template-columns: 1fr; }
  .migration-steps article { border-right: 0; border-bottom: 1px solid var(--line); }
  .migration-steps article:last-child { border-bottom: 0; }
  .migration-visual { grid-template-columns: 1fr; }
  .migration-arrow { transform: rotate(90deg); justify-self: center; }
  .legal-nav { position: static; padding-bottom: 1.5rem; border-bottom: 1px solid var(--line); }
  .site-footer-inner { grid-template-columns: 1fr; }
  .footer-links { justify-content: flex-start; }
}

@media (max-width: 520px) {
  .screenshot-gallery, .migration-screens { grid-template-columns: 1fr; }
  .app-shot, .app-shot:nth-child(even) { width: min(100%, 19rem); margin: 0 auto 1.5rem; transform: none; }
  .migration-screens figure { width: min(100%, 19rem); margin-inline: auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}