/* ceriba.org – ruhige Startseite: Logo genau in der Mitte, unten zwei Textlinks mit dem blauen Strich vom «i», ein Hinweis-Fenster. */

:root {
  --bg: #fbfbfa;
  --ink: #2c2c2c;
  --grey: #535353;      /* Logo-Grau */
  --blue: #00a4e4;      /* Logo-Blau: der Strich über dem «i» */
  --blue-ink: #00739f;  /* dunkleres Blau für Links im Fliesstext: gut lesbar auf Weiss */
  color-scheme: light;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 2rem 1.25rem;
  background: var(--bg);
  color: var(--ink);
  font: 400 1.0625rem/1.55 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* Aufbau: Logo genau in der Mitte, die zwei Links unten am Rand */
main {
  width: 100%;
  max-width: 36rem;
  min-height: calc(100vh - 4rem);
  min-height: calc(100dvh - 4rem);
  display: grid;
  grid-template-rows: 1fr auto 1fr;
  justify-items: center;
  text-align: center;
}
.logo-wrap { grid-row: 2; margin: 0; line-height: 0; }
.logo { display: block; width: min(78vw, 24rem); height: auto; }
.actions, .info-fallback { grid-row: 3; align-self: end; margin-bottom: clamp(0.25rem, 2.5vh, 1.5rem); }
.actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.6rem clamp(1.75rem, 6vw, 3.25rem); }
@media (max-width: 420px) { .actions { flex-direction: column; align-items: center; } }

/* Textlinks in normaler Schrift; darunter der blaue Strich vom «i», der beim Darüberfahren lang wird */
.link {
  appearance: none;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.3rem 0.15rem 0.75rem;
  border: 0;
  background: none;
  cursor: pointer;
  color: var(--grey);
  font: inherit;
  font-weight: 600;
  font-size: 1.05rem;
  line-height: 1.2;
  text-decoration: none;
}
.link::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0.25rem;
  width: 1.9rem;
  height: 0.3rem;
  border-radius: 999px;
  background: var(--blue);
  transform: translateX(-50%);
}
.link:hover { color: var(--ink); }
.link:hover::after, .link:focus-visible::after { width: 100%; }
.link:focus-visible, dialog a:focus-visible, .info-fallback a:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; border-radius: 4px; }
@media (prefers-reduced-motion: no-preference) { .link::after { transition: width 0.2s ease; } }

/* Hinweis-Fenster «Über ceriba» */
dialog {
  width: min(28rem, calc(100vw - 2.5rem));
  padding: 2rem 1.75rem 1.4rem;
  border: 0;
  border-radius: 22px;
  background: #fff;
  color: var(--ink);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.18);
  text-align: left;
}
dialog::backdrop { background: rgba(28, 28, 28, 0.45); }
dialog h2 {
  margin: 0 0 0.75rem;
  font-size: 1.3rem;
  line-height: 1.25;
  color: var(--ink);
}
dialog h2::before {  /* kleiner blauer Strich wie über dem «i» im Logo */
  content: "";
  display: block;
  width: 2.2rem;
  height: 0.32rem;
  margin-bottom: 0.9rem;
  border-radius: 999px;
  background: var(--blue);
}
#info-title:focus { outline: none; }
dialog p { margin: 0 0 0.9rem; }
dialog a, .info-fallback a { color: var(--blue-ink); font-weight: 600; text-underline-offset: 0.18em; }
dialog form { margin: 1.1rem 0 0; text-align: right; }
dialog .lc { margin-top: 1.3rem; padding-top: 1.1rem; border-top: 1px solid #e4e4df; }  /* klar abgetrennt: nicht Teil von Ceriba */
dialog .lc p { margin: 0; }
.info-fallback { max-width: 28rem; }

@media (prefers-reduced-motion: no-preference) {
  dialog[open] { animation: ceriba-in 160ms ease-out; }
  @keyframes ceriba-in { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
}