:root {
  --ink: #102a43;
  --ink-muted: #486581;
  --cream: #f7f5ef;
  --paper: #ffffff;
  --mint: #d9f4e8;
  --mint-strong: #6bd6ac;
  --coral: #ff8066;
  --line: #d9e2ec;
  --shadow: 0 18px 48px rgba(16, 42, 67, 0.14);
}

* { box-sizing: border-box; }

html {
  max-width: 100%;
  overflow-x: hidden;
  overflow-x: clip;
  scroll-behavior: smooth;
}

body {
  max-width: 100%;
  margin: 0;
  color: var(--ink);
  background: var(--cream);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
  overflow-x: clip;
}

a { color: inherit; }

.container {
  width: min(1120px, calc(100% - 48px));
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  z-index: 10;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  color: var(--ink);
  background: var(--mint-strong);
  transform: translateY(-150%);
}

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

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

.site-header {
  position: absolute;
  z-index: 2;
  top: 0;
  right: 0;
  left: 0;
  color: var(--paper);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 82px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  color: var(--ink);
  background: var(--mint-strong);
  border-radius: 10px 10px 10px 3px;
}

nav { display: flex; gap: 28px; }
nav a { font-size: 0.92rem; text-decoration: none; opacity: 0.82; }
nav a:hover { opacity: 1; }

.hero {
  position: relative;
  min-height: 720px;
  padding: 160px 0 110px;
  color: var(--paper);
  background: var(--ink);
  overflow: hidden;
}

.hero::after {
  position: absolute;
  top: -220px;
  right: -180px;
  width: 560px;
  height: 560px;
  border: 1px solid rgba(107, 214, 172, 0.2);
  border-radius: 50%;
  box-shadow: 0 0 0 80px rgba(107, 214, 172, 0.04), 0 0 0 160px rgba(107, 214, 172, 0.03);
  content: "";
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  align-items: center;
  gap: 72px;
}

.hero-grid > *,
.journey-grid > *,
.accessibility-grid > *,
.version-grid > *,
.technology-grid > *,
.status-panel > * {
  min-width: 0;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 18px;
  color: var(--mint-strong);
  font-size: 0.77rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.eyebrow-dark { color: #147d5a; }
.status-dot { width: 8px; height: 8px; background: var(--mint-strong); border-radius: 50%; }

h1, h2, h3, p { margin-top: 0; }
h1, h2 { letter-spacing: -0.06em; line-height: 1.04; }
h1 { max-width: 560px; margin-bottom: 26px; font-size: clamp(4.5rem, 10vw, 8.5rem); }
h1 em { color: var(--mint-strong); font-style: normal; }
h2 { margin-bottom: 22px; font-size: clamp(2.35rem, 5vw, 4.5rem); }
h3 { margin-bottom: 8px; font-size: 1.08rem; line-height: 1.25; }

.hero-lead { max-width: 520px; margin-bottom: 36px; color: #d9e2ec; font-size: 1.15rem; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 12px 20px; font-weight: 800; text-decoration: none; border-radius: 999px; }
.button-primary { color: var(--ink); background: var(--mint-strong); }
.button-primary:hover { background: #8ae1c0; }

.route-visual { position: relative; }
.route-card { padding: 32px; color: var(--ink); background: var(--paper); border-radius: 28px; box-shadow: var(--shadow); transform: rotate(2deg); }
.route-card-top, .route-card-bottom { display: flex; justify-content: space-between; gap: 20px; }
.route-card-top { margin-bottom: 54px; font-size: 0.82rem; font-weight: 800; }
.route-line { color: var(--ink-muted); font-weight: 600; }
.route-path { display: flex; align-items: center; padding: 0 16px; }
.route-node { flex: 0 0 auto; width: 22px; height: 22px; border: 5px solid var(--paper); border-radius: 50%; box-shadow: 0 0 0 3px currentColor; }
.route-node-start { color: #147d5a; background: var(--mint-strong); }
.route-node-current { color: var(--coral); background: var(--coral); }
.route-node-end { color: var(--ink); background: var(--ink); }
.route-segment { height: 4px; flex: 1; background: var(--line); }
.route-segment-short { flex: 0.7; }
.route-labels { display: flex; justify-content: space-between; gap: 30px; margin: 22px 0 40px; color: var(--ink-muted); font-size: 0.79rem; font-weight: 700; }
.route-card-bottom { align-items: center; padding-top: 22px; border-top: 1px solid var(--line); font-size: 0.86rem; font-weight: 800; }
.pulse-icon { width: 12px; height: 12px; background: var(--coral); border-radius: 50%; box-shadow: 0 0 0 7px rgba(255, 128, 102, 0.18); }

.section { padding: 120px 0; }
.section-light { background: var(--cream); }
.section-deep { color: var(--paper); background: #183b56; }
.narrow-content { max-width: 950px; }
.section-intro { max-width: 730px; color: var(--ink-muted); font-size: 1.18rem; }
.section-deep h2 { max-width: 550px; }
.section-deep p { color: #d9e2ec; }

.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 56px; }
.feature-card { min-height: 230px; padding: 26px; background: var(--paper); border: 1px solid var(--line); border-radius: 18px; }
.feature-number { display: block; margin-bottom: 46px; color: var(--coral); font-size: 0.84rem; font-weight: 900; }
.feature-card p { margin-bottom: 0; color: var(--ink-muted); }

.journey-grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 100px; }
.journey-list { display: grid; gap: 0; margin: 0; padding: 0; list-style: none; }
.journey-list li { display: grid; grid-template-columns: 46px 1fr; gap: 20px; padding: 0 0 30px; border-bottom: 1px solid rgba(217, 226, 236, 0.18); }
.journey-list li + li { padding-top: 30px; }
.step-index { display: grid; width: 38px; height: 38px; place-items: center; color: var(--ink); background: var(--mint-strong); border-radius: 50%; font-weight: 900; }
.journey-list p { margin-bottom: 0; }

.accessibility-grid { display: grid; grid-template-columns: 0.5fr 1.5fr; align-items: center; gap: 60px; }
.accessibility-badge { display: grid; position: relative; width: 210px; height: 210px; place-items: center; margin: auto; background: var(--mint); border-radius: 50%; }
.badge-ring { position: absolute; inset: 20px; border: 2px dashed #147d5a; border-radius: 50%; }
.badge-letter { font-size: 5rem; font-weight: 900; letter-spacing: -0.08em; }
.check-list { display: grid; gap: 12px; margin: 30px 0 0; padding: 0; list-style: none; color: var(--ink); font-weight: 700; }
.check-list li { display: flex; align-items: baseline; gap: 12px; }
.check-list li::before { color: #147d5a; content: "✓"; font-size: 1.2rem; }

.roadmap-section { background: var(--paper); }
.roadmap-heading { max-width: 820px; }
.version-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; margin-top: 54px; }
.version-card { padding: 32px; background: var(--cream); border: 1px solid var(--line); border-radius: 22px; }
.version-card-future { color: var(--paper); background: var(--ink); border-color: var(--ink); }
.version-card-header { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 38px; }
.version-number { display: inline-flex; align-items: center; justify-content: center; min-width: 72px; min-height: 42px; padding: 8px 16px; color: var(--ink); background: var(--mint-strong); border-radius: 999px; font-size: 1.1rem; font-weight: 900; }
.version-status { color: var(--ink-muted); font-size: 0.78rem; font-weight: 800; letter-spacing: 0.06em; text-align: right; text-transform: uppercase; }
.version-card-future .version-status { color: #bcccdc; }
.version-card h3 { margin-bottom: 14px; font-size: 1.55rem; letter-spacing: -0.03em; }
.version-card > p { color: var(--ink-muted); }
.version-card-future > p { color: #d9e2ec; }
.version-card > .release-window { margin-top: 22px; padding: 14px 16px; color: #255d4d; background: var(--mint); border-radius: 12px; font-size: 0.92rem; }
.release-window strong { display: block; color: var(--ink); }
.version-list { display: grid; gap: 10px; margin: 26px 0 0; padding: 22px 0 0; border-top: 1px solid var(--line); list-style: none; }
.version-card-future .version-list { border-color: rgba(217, 226, 236, 0.18); }
.version-list li { display: flex; gap: 10px; }
.version-list li::before { flex: 0 0 auto; color: var(--coral); content: "•"; font-weight: 900; }

.field-testing-note { display: grid; grid-template-columns: 48px 1fr; gap: 20px; margin-top: 24px; padding: 24px 28px; background: var(--mint); border-radius: 18px; }
.field-testing-mark { display: grid; width: 44px; height: 44px; place-items: center; color: var(--paper); background: #147d5a; border-radius: 50%; font-weight: 900; }
.field-testing-note h3 { margin-bottom: 5px; font-size: 1.1rem; }
.field-testing-note p { max-width: 830px; margin-bottom: 0; color: #255d4d; }

.technical-details { margin-top: 24px; color: var(--paper); background: #183b56; border-radius: 22px; overflow: hidden; }
.technical-details summary { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 94px; padding: 24px 30px; cursor: pointer; list-style: none; }
.technical-details summary::-webkit-details-marker { display: none; }
.technical-details summary strong { display: block; font-size: 1.2rem; }
.technical-details summary small { display: block; margin-top: 3px; color: #bcccdc; font-size: 0.9rem; }
.summary-action { display: inline-flex; align-items: center; justify-content: center; min-width: 80px; min-height: 38px; padding: 7px 14px; color: var(--ink); background: var(--mint-strong); border-radius: 999px; font-size: 0.78rem; font-weight: 900; text-transform: uppercase; }
.technical-details[open] .summary-action::before { content: "Zwiń"; }
.technical-details[open] .summary-action { font-size: 0; }
.technical-details[open] .summary-action::before { font-size: 0.78rem; }
.technical-content { padding: 8px 30px 32px; border-top: 1px solid rgba(217, 226, 236, 0.16); }
.technical-intro { max-width: 860px; padding: 34px 0; }
.technical-intro h3, .technical-conclusion h3 { font-size: 1.45rem; letter-spacing: -0.03em; }
.technical-intro p, .technical-conclusion p { color: #d9e2ec; }
.technology-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.technology-card { padding: 26px; color: var(--ink); background: var(--paper); border-radius: 16px; }
.technology-label { margin-bottom: 6px; color: #147d5a; font-size: 0.73rem; font-weight: 900; letter-spacing: 0.1em; text-transform: uppercase; }
.technology-card h3 { margin-bottom: 14px; font-size: 1.5rem; }
.technology-card > p:not(.technology-label):not(.device-heading):not(.source-links) { color: var(--ink-muted); }
.device-heading { margin: 24px 0 8px; font-weight: 900; }
.device-list { margin: 0; padding-left: 22px; }
.device-list li + li { margin-top: 6px; }
.device-note { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line); font-size: 0.88rem; }
.source-links { display: flex; flex-wrap: wrap; gap: 5px 8px; margin: 20px 0 0; color: #0c6b4d; font-size: 0.82rem; font-weight: 800; }
.source-links a { text-underline-offset: 3px; }
.technical-conclusion { max-width: 860px; padding: 34px 0 4px; }
.technical-conclusion p { margin-bottom: 10px; }
.as-of-date { color: #9fb3c8 !important; font-size: 0.82rem; }

.status-section { padding: 64px 0; background: var(--mint); }
.status-panel { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 60px; }
.status-panel h2 { max-width: 500px; margin-bottom: 0; font-size: clamp(2rem, 4vw, 3.5rem); }
.status-panel p:last-child { max-width: 500px; margin-bottom: 0; color: #255d4d; font-size: 1.05rem; }

.site-footer { padding: 28px 0; color: #9fb3c8; background: var(--ink); font-size: 0.84rem; }
.footer-inner { display: flex; justify-content: space-between; gap: 20px; }
.footer-inner p { margin-bottom: 0; }
.footer-inner strong { color: var(--paper); }

@media (max-width: 800px) {
  .container { width: min(100% - 32px, 620px); }
  .header-inner { align-items: flex-start; min-height: 88px; padding: 20px 0; gap: 18px; }
  nav { max-width: 220px; flex-wrap: wrap; justify-content: flex-end; gap: 5px 14px; }
  nav a { font-size: 0.78rem; }
  .hero { min-height: auto; padding: 150px 0 72px; }
  .hero-grid, .journey-grid, .accessibility-grid, .status-panel { grid-template-columns: 1fr; gap: 48px; }
  .route-visual { max-width: 560px; }
  .section { padding: 78px 0; }
  .feature-grid { grid-template-columns: 1fr; margin-top: 38px; }
  .feature-card { min-height: auto; }
  .feature-number { margin-bottom: 24px; }
  .accessibility-badge { width: 150px; height: 150px; margin: 0; }
  .badge-letter { font-size: 3.4rem; }
  .version-grid, .technology-grid { grid-template-columns: 1fr; }
  .version-card { padding: 25px; }
  .version-card-header { align-items: flex-start; margin-bottom: 28px; }
  .field-testing-note { grid-template-columns: 1fr; padding: 22px; }
  .technical-details summary { min-height: 86px; padding: 20px; }
  .technical-details summary small { max-width: 190px; }
  .technical-content { padding: 8px 20px 24px; }
  .status-panel { gap: 22px; }
  .footer-inner { flex-direction: column; gap: 6px; }
}

@media (max-width: 480px) {
  .brand span:last-child { display: none; }
  nav { max-width: 240px; }
  .version-card-header { flex-direction: column; }
  .version-status { text-align: left; }
  .technical-details summary { align-items: flex-start; }
  .summary-action { min-width: 68px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}