:root {
  --bg: #e8eef4;
  --surface: #ffffff;
  --ink: #0a121c;
  --muted: #4a5a6c;
  --line: #b8c4d2;
  --accent: #15485e;
  --font: "Segoe UI", "Public Sans", system-ui, sans-serif;
}

html {
  -webkit-text-size-adjust: 100%;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  font-family: var(--font);
  color: var(--ink);
  line-height: 1.55;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.5) 0%, transparent 32%),
    radial-gradient(900px 380px at 8% -8%, #d0e2ea 0%, transparent 55%),
    var(--bg);
  overflow-x: clip;
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
}

a {
  color: var(--accent);
  font-weight: 600;
}

a:hover {
  text-decoration-thickness: 2px;
}

.content-nav {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "brand lang"
    "links links";
  align-items: center;
  column-gap: 1rem;
  row-gap: 0.65rem;
  padding: 0.85rem 1.5rem;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 88%, #fff);
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(8px);
}

.content-brand {
  grid-area: brand;
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: inherit;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.03em;
  min-width: 0;
}

.content-brand img {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--surface);
  object-fit: contain;
}

.content-nav-links {
  grid-area: links;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1rem;
  font-size: 0.92rem;
}

.content-nav-links a {
  text-decoration: none;
}

/* Stejný přepínač jako na landingu / v appce */
.lang-switch {
  display: inline-flex;
  align-items: stretch;
  height: 2.25rem;
  box-sizing: border-box;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--surface);
}

.lang-btn {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  padding: 0 0.7rem;
  cursor: pointer;
  line-height: 1;
  box-sizing: border-box;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  min-height: 2.25rem;
}

a.lang-btn:hover {
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  text-decoration: none;
}

.lang-btn.active,
a.lang-btn[aria-current="page"] {
  background: var(--accent);
  color: #fff;
  pointer-events: none;
}

.content-lang {
  grid-area: lang;
  justify-self: end;
  align-self: center;
}

.content-main {
  max-width: 42rem;
  margin: 0 auto;
  padding: 1.75rem 1.25rem 3rem;
}

.content-crumbs {
  margin-bottom: 1.1rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.content-crumbs a {
  font-weight: 600;
}

h1 {
  font-size: clamp(1.65rem, 4vw, 2.1rem);
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin: 0 0 0.65rem;
}

h2 {
  font-size: 1.2rem;
  letter-spacing: -0.02em;
  margin: 1.6rem 0 0.5rem;
}

.content-lead {
  color: var(--muted);
  font-size: 1.05rem;
  margin: 0 0 1.25rem;
}

.content-term-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.85rem;
}

.content-term-list li {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--line);
}

.content-related ul,
.content-links ul {
  margin: 0.35rem 0 0;
  padding-left: 1.2rem;
}

.content-links li {
  margin: 0.45rem 0;
}

.content-cta {
  margin-top: 2.5rem;
  padding: 1.1rem 1.15rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
}

.content-cta p {
  margin: 0 0 0.45rem;
}

.content-disclaimer {
  color: var(--muted) !important;
  font-size: 0.88rem !important;
}

.content-footer {
  text-align: center;
  padding: 1.25rem 1rem 2.5rem;
  padding-bottom: max(2.5rem, env(safe-area-inset-bottom));
  color: var(--muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--line);
}

@media (max-width: 640px) {
  .content-nav {
    padding: 0.7rem 0.85rem;
    padding-top: max(0.7rem, env(safe-area-inset-top));
    gap: 0.55rem 0.75rem;
  }

  .content-nav-links {
    width: 100%;
    gap: 0.55rem 0.75rem;
    font-size: 0.88rem;
  }

  .content-nav-links a {
    min-height: 2.5rem;
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0;
  }

  .content-lang .lang-switch {
    height: 2.5rem;
  }

  .content-lang .lang-btn {
    min-height: 2.5rem;
    padding: 0 0.75rem;
  }

  .content-main {
    padding: 1.15rem 0.9rem 2.25rem;
  }

  h1 {
    font-size: clamp(1.45rem, 7vw, 1.85rem);
  }

  .content-lead {
    font-size: 1rem;
  }

  .content-cta {
    padding: 1rem 0.95rem;
  }
}