/*
 * flighto.app. Farben aus der App (mobile/src/ui/theme.ts): Papier und Tinte der Ebenen bei Tag und
 * Nacht, auf der Startseite der Himmel des Fortschrittsbands. Chillax nur fuer Ueberschriften, unveraendert
 * als OTF ausgeliefert: die Lizenz erlaubt Self-Hosting, aber keine Umwandlung in WOFF2.
 */

@font-face {
  font-family: "Chillax";
  src: url("/fonts/Chillax-Semibold.otf") format("opentype");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Chillax";
  src: url("/fonts/Chillax-Bold.otf") format("opentype");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: light;
  --paper: #f9fafb;
  --ink: #1c252f;
  --muted: rgba(28, 37, 47, 0.68);
  --line: rgba(28, 37, 47, 0.14);
  --card: #ffffff;
  --link: #17497b;
  --sky-top: #578db2;
  --sky-mid: #4f7eae;
  --sky-low: #487599;
  --display: "Chillax", system-ui, -apple-system, sans-serif;
  --text: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --paper: #181c25;
    --ink: #ffffff;
    --muted: rgba(255, 255, 255, 0.68);
    --line: rgba(255, 255, 255, 0.14);
    --card: #212c46;
    --link: #9cc4f0;
    --sky-top: #0b0e24;
    --sky-mid: #131c38;
    --sky-low: #1f3656;
  }
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 17px/1.6 var(--text);
  overflow-wrap: break-word;
}

a {
  color: var(--link);
  text-underline-offset: 0.18em;
}

/* Kopfzeile: Icon und Wortmarke links, die andere Sprache rechts. */
.bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: 46rem;
  margin: 0 auto;
  padding: 18px 16px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  font: 700 21px/1 var(--display);
}
.brand img {
  border-radius: 7px;
}
.lang {
  color: var(--muted);
  font: 600 13px/1 var(--display);
  letter-spacing: 0.06em;
  text-decoration: none;
  padding: 9px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
}

/* Textseiten */
main.doc {
  max-width: 46rem;
  margin: 0 auto;
  padding: 8px 16px 64px;
}
h1,
h2,
h3 {
  font-family: var(--display);
  text-wrap: balance;
}
h1 {
  font-weight: 700;
  font-size: clamp(32px, 7vw, 42px);
  line-height: 1.1;
  margin: 28px 0 8px;
}
h2 {
  font-weight: 600;
  font-size: 22px;
  line-height: 1.3;
  margin: 44px 0 8px;
  scroll-margin-top: 16px;
}
h3 {
  font-weight: 600;
  font-size: 18px;
  line-height: 1.35;
  margin: 28px 0 4px;
}
p {
  margin: 0 0 14px;
}
.meta {
  color: var(--muted);
  font-size: 15px;
  margin-bottom: 28px;
}
.lead {
  font-size: 19px;
  line-height: 1.55;
}
ul,
ol {
  padding-left: 1.25em;
  margin: 0 0 14px;
}
li {
  margin: 8px 0;
}
address {
  font-style: normal;
  margin: 0 0 14px;
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px 20px;
  font-size: 18px;
}
code {
  font: 0.9em var(--mono);
  background: var(--line);
  padding: 0.08em 0.35em;
  border-radius: 5px;
}
.toc {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 20px 14px 18px;
  margin: 28px 0 8px;
  font-size: 15px;
}
.toc ol {
  margin: 0;
  columns: 2 15rem;
  column-gap: 28px;
}
.toc li {
  margin: 0 0 6px;
  break-inside: avoid;
}
mark.missing {
  background: #f79009;
  color: #1c252f;
  padding: 0 5px;
  border-radius: 4px;
}

/* Fusszeile */
.foot {
  border-top: 1px solid var(--line);
}
.foot-inner {
  max-width: 46rem;
  margin: 0 auto;
  padding: 24px 16px 44px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px 24px;
  font-size: 14px;
  color: var(--muted);
}
.foot nav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
}
.foot a {
  color: var(--muted);
  text-decoration: none;
}
.foot a:hover {
  color: var(--ink);
  text-decoration: underline;
}
.foot p {
  margin: 0;
}

/* Startseite: Kopfzeile und erster Absatz unter dem Himmel. */
.hero {
  background: linear-gradient(180deg, var(--sky-top), var(--sky-mid) 56%, var(--sky-low));
  color: #ffffff;
}
.hero .brand,
.hero .lang {
  color: #ffffff;
}
.hero .lang {
  border-color: rgba(255, 255, 255, 0.4);
}
.hero-body {
  max-width: 46rem;
  margin: 0 auto;
  padding: 24px 16px 72px;
  text-align: center;
}
.hero-body .icon {
  width: 120px;
  height: 120px;
  border-radius: 27px;
  box-shadow: 0 18px 44px rgba(6, 13, 26, 0.35);
}
.hero-body h1 {
  font-size: clamp(44px, 11vw, 60px);
  margin: 24px 0 4px;
}
.tagline {
  font: 600 18px/1.3 var(--display);
  letter-spacing: 0.02em;
  opacity: 0.9;
}
.pitch {
  max-width: 31rem;
  margin: 18px auto 0;
  font-size: 18px;
  opacity: 0.94;
}
.cta {
  display: inline-block;
  margin-top: 30px;
  background: #ffffff;
  color: #1c252f;
  font: 600 17px/1 var(--display);
  padding: 16px 26px;
  border-radius: 999px;
  text-decoration: none;
  box-shadow: 0 8px 24px rgba(6, 13, 26, 0.25);
}
.features {
  max-width: 46rem;
  margin: 0 auto;
  padding: 48px 16px 64px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr));
  gap: 28px;
}
.features h2 {
  font-size: 19px;
  margin: 0 0 6px;
}
.features p {
  color: var(--muted);
  margin: 0;
}