:root {
  color-scheme: dark;
  --background: #060817;
  --surface: rgba(17, 23, 48, 0.78);
  --text: #f7f8ff;
  --muted: #adb5d5;
  --accent: #19d3bd;
  --line: rgba(255, 255, 255, 0.11);
  --shadow: 0 26px 80px rgba(0, 0, 0, 0.35);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 10% 0%, rgba(26, 211, 189, 0.19), transparent 28rem),
    radial-gradient(circle at 100% 28%, rgba(87, 91, 255, 0.19), transparent 32rem),
    var(--background);
}

a {
  color: inherit;
}

.site-header,
.page-shell,
.site-footer {
  width: min(1120px, calc(100% - 32px));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-weight: 800;
  letter-spacing: -0.03em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 12px;
  color: #04100f;
  background: linear-gradient(145deg, #72f8e9, var(--accent));
  box-shadow: 0 10px 28px rgba(25, 211, 189, 0.26);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.language-picker {
  padding: 9px 12px;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(5, 8, 23, 0.72);
}

.page-shell {
  padding: 72px 0 96px;
}

.hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 64px;
  min-height: 610px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 780px;
  margin-bottom: 22px;
  font-size: clamp(3rem, 8vw, 6.4rem);
  line-height: 0.95;
  letter-spacing: -0.065em;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 5vw, 3.5rem);
  letter-spacing: -0.045em;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.15rem;
}

.lead {
  max-width: 650px;
  color: var(--muted);
  font-size: clamp(1.08rem, 2vw, 1.3rem);
  line-height: 1.65;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  font-weight: 750;
  text-decoration: none;
  transition: 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.25);
}

.button.primary {
  color: #04100f;
  border-color: transparent;
  background: linear-gradient(145deg, #72f8e9, var(--accent));
}

.button.secondary {
  background: rgba(255, 255, 255, 0.055);
}

.product-visual {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 450px;
}

.product-visual::before {
  position: absolute;
  width: 80%;
  height: 80%;
  content: "";
  border-radius: 50%;
  background: rgba(25, 211, 189, 0.13);
  filter: blur(45px);
}

.app-icon {
  position: relative;
  width: min(340px, 75vw);
  border-radius: 26%;
  box-shadow: var(--shadow);
  transform: rotate(3deg);
}

.pricing-note {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  margin-top: 22px;
  padding: 10px 14px;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.045);
}

.section {
  padding: 76px 0;
  border-top: 1px solid var(--line);
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.card {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--surface);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.13);
  backdrop-filter: blur(18px);
}

.card p,
.prose p,
.prose li {
  color: var(--muted);
  line-height: 1.7;
}

.card-icon {
  display: grid;
  width: 44px;
  height: 44px;
  margin-bottom: 18px;
  place-items: center;
  border-radius: 14px;
  color: var(--accent);
  background: rgba(25, 211, 189, 0.1);
  font-weight: 900;
}

.page-heading {
  max-width: 800px;
  padding: 60px 0 42px;
}

.page-heading h1 {
  font-size: clamp(2.8rem, 7vw, 5.2rem);
}

.prose {
  max-width: 820px;
}

.prose section {
  padding: 28px 0;
  border-top: 1px solid var(--line);
}

.prose ul,
.prose ol {
  padding-left: 22px;
}

.callout {
  margin: 28px 0;
  padding: 22px;
  border: 1px solid rgba(25, 211, 189, 0.28);
  border-radius: 18px;
  background: rgba(25, 211, 189, 0.08);
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 18px;
  padding: 34px 0 46px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 0.92rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

[data-lang] {
  display: none;
}

html[data-active-lang="en"] [data-lang="en"],
html[data-active-lang="pl"] [data-lang="pl"],
html[data-active-lang="es"] [data-lang="es"] {
  display: revert;
}

@media (max-width: 800px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 30px;
    min-height: auto;
  }

  .product-visual {
    min-height: 330px;
  }

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

  .page-shell {
    padding-top: 34px;
  }
}

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

  .button {
    transition: none;
  }
}