:root {
  color-scheme: light;
  --ink: #17212b;
  --muted: #5c6874;
  --line: #d7e0e8;
  --paper: #f6f8fb;
  --panel: #ffffff;
  --soft: #eef5f1;
  --accent: #1f7a57;
  --blue: #2457a6;
  --warn: #8a5a00;
}

* { box-sizing: border-box; }

html { scroll-behavior: auto; }

body {
  margin: 0;
  font-family: "Segoe UI", Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.58;
}

a { color: var(--blue); }

.wrap {
  width: min(1240px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  border-bottom: 1px solid var(--line);
  background: #ffffff;
}

.topbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  padding: 22px 0 18px;
}

.brand {
  display: flex;
  gap: 14px;
  align-items: center;
  min-width: 0;
}

.brand img {
  width: 58px;
  height: 58px;
  border-radius: 8px;
  box-shadow: 0 10px 24px rgba(23, 33, 43, .14);
  flex: 0 0 auto;
}

h1 {
  margin: 0 0 4px;
  font-size: clamp(2.1rem, 5vw, 4rem);
  line-height: 1;
  letter-spacing: 0;
}

.subtitle,
.muted {
  color: var(--muted);
}

.subtitle {
  margin: 0;
  max-width: 760px;
  font-size: 1.03rem;
}

.language-tools {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.language-button,
.nav-toggle {
  min-height: 34px;
  border: 1px solid #c7d6e5;
  border-radius: 6px;
  background: #ffffff;
  color: var(--ink);
  cursor: pointer;
  font: inherit;
  font-weight: 700;
}

.language-button {
  min-width: 44px;
  padding: 6px 10px;
}

.language-button.active {
  color: #ffffff;
  background: var(--accent);
  border-color: var(--accent);
}

.shell {
  display: grid;
  grid-template-columns: 232px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  padding: 24px 0 44px;
}

.side {
  position: sticky;
  top: 10px;
  align-self: start;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  padding: 10px;
}

.nav-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin: 0 0 8px;
}

.nav-title {
  color: var(--muted);
  font-size: .88rem;
  font-weight: 700;
  padding-left: 4px;
}

.nav-toggle {
  min-width: 54px;
  padding: 4px 8px;
}

.nav-list {
  display: grid;
  gap: 6px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 36px;
  padding: 7px 8px;
  border: 1px solid transparent;
  border-radius: 6px;
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent);
  background: var(--soft);
  border-color: #b8d8c9;
}

.nav-key {
  width: 1.35em;
  flex: 0 0 auto;
  text-align: center;
  color: var(--muted);
}

body.nav-collapsed .shell {
  grid-template-columns: 58px minmax(0, 1fr);
}

body.nav-collapsed .side {
  width: 58px;
  padding: 8px;
}

body.nav-collapsed .nav-title,
body.nav-collapsed .nav-text {
  display: none;
}

body.nav-collapsed .nav-toggle {
  min-width: 40px;
  padding: 4px 0;
}

.content {
  min-width: 0;
}

.hero {
  display: grid;
  grid-template-columns: minmax(290px, 440px) minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.panel,
.feature-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.panel {
  margin: 0 0 18px;
  padding: 18px;
}

.feature-card {
  padding: 15px;
}

h2 {
  margin: 0 0 10px;
  font-size: 1.34rem;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 8px;
  font-size: 1.08rem;
  letter-spacing: 0;
}

p { margin: 0 0 12px; }
p:last-child { margin-bottom: 0; }

ul,
ol {
  margin: 10px 0 0;
  padding-left: 22px;
}

li + li { margin-top: 7px; }

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 16px 0 0;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 8px 12px;
  border: 1px solid var(--accent);
  border-radius: 6px;
  background: var(--accent);
  color: #ffffff;
  font-weight: 700;
  text-decoration: none;
}

.button.secondary {
  border-color: #b8c8dd;
  background: #ffffff;
  color: var(--blue);
}

.shot {
  display: block;
  width: 100%;
  border: 1px solid #c7d3df;
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 14px 34px rgba(23, 33, 43, .12);
}

figure { margin: 0; }

figcaption {
  margin-top: 10px;
  color: var(--muted);
  font-size: .94rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.facts {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin: 16px 0 0;
}

.fact {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: #f2f6fa;
}

.fact strong {
  display: block;
  font-size: 1.24rem;
  line-height: 1.1;
}

.note {
  border-left: 4px solid var(--warn);
  border-radius: 0 6px 6px 0;
  background: #fff7e6;
  padding: 10px 12px;
}

.download-options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

table {
  width: min(100%, 1080px);
  border-collapse: collapse;
  table-layout: fixed;
  font-size: .95rem;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 9px 8px;
  text-align: left;
  vertical-align: top;
  overflow-wrap: anywhere;
}

th {
  background: #f0f4f8;
}

th button {
  all: unset;
  cursor: pointer;
  font-weight: 700;
}

th button::after { content: " <>"; color: #687684; font-weight: 400; }
th button.asc::after { content: " ^"; color: var(--blue); }
th button.desc::after { content: " v"; color: var(--blue); }

.num {
  text-align: right;
  white-space: nowrap;
}

code {
  font-family: Consolas, "Courier New", monospace;
  font-size: .93em;
}

[data-lang-block] { display: none; }
html[lang="de"] [data-lang-block="de"],
html[lang="en"] [data-lang-block="en"] { display: block; }

.site-footer {
  border-top: 1px solid var(--line);
  background: #ffffff;
  color: var(--muted);
  padding: 18px 0;
}

@media (max-width: 900px) {
  .topbar,
  .shell,
  body.nav-collapsed .shell,
  .hero,
  .feature-grid,
  .download-options,
  .facts {
    grid-template-columns: 1fr;
  }

  .language-tools {
    justify-content: flex-start;
  }

  .side,
  body.nav-collapsed .side {
    position: static;
    width: auto;
  }

  body.nav-collapsed .nav-title,
  body.nav-collapsed .nav-text {
    display: inline;
  }
}