/* OGPOG Briefkasten – DOS-Setup-Bildschirm in VGA-Blau. Alle Farben als Tokens hier. */
@font-face {
  font-family: "VT323";
  src: url("/assets/fonts/vt323-latin-400-normal.woff2") format("woff2");
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("/assets/fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2");
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("/assets/fonts/ibm-plex-mono-latin-700-normal.woff2") format("woff2");
  font-weight: 700; font-style: normal; font-display: swap;
}

:root {
  --vga-blau: #0b1f8f;
  --vga-tief: #071466;
  --fenster: #c9c9c9;
  --fenster-hell: #e6e6e6;
  --fenster-text: #10123a;
  --fenster-leise: #4a4d70;
  --cyan: #5ff2f2;
  --gelb: #ffe95a;
  --weiss: #f2f4ff;
  --grau: #a9b0e0;
  --schatten: #020733;
  --ok: #0d6b2a;
  --fehler: #a3121f;
  --warn: #c58a00;
  --font-pixel: "VT323", "IBM Plex Mono", ui-monospace, monospace;
  --font-text: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--vga-blau);
  background-image: repeating-linear-gradient(0deg, rgba(0,0,0,.10) 0 1px, transparent 1px 3px);
  color: var(--weiss);
  font: 400 17px/1.6 var(--font-text);
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
  padding-block: 24px 48px;
}
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
[hidden] { display: none !important; }
.wrap { max-width: 860px; margin: 0 auto; display: grid; gap: 40px; }

.prompt { font: 400 22px/1.2 var(--font-pixel); color: var(--grau); margin: 0; overflow-wrap: anywhere; }
.prompt b { color: var(--weiss); font-weight: 400; }
.cursor { display: inline-block; width: .6em; height: 1em; background: var(--weiss); vertical-align: -0.12em; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .cursor { animation: none; } }

.hero { display: grid; gap: 14px; }
.titel {
  font: 400 clamp(46px, 10vw, 92px)/.9 var(--font-pixel);
  color: var(--gelb);
  margin: 0;
  text-shadow: 4px 4px 0 var(--schatten);
  text-wrap: balance;
}
.titel span { color: var(--cyan); display: block; }
.lead { font-size: 20px; max-width: 62ch; margin: 0; }
.lead strong, .gelb { color: var(--gelb); font-weight: 600; }

h2 { font: 400 34px/1 var(--font-pixel); color: var(--cyan); margin: 0 0 14px; text-wrap: balance; }
h2::before { content: "► "; color: var(--gelb); }
section p { margin: 0; max-width: 65ch; }
section > * + * { margin-top: 12px; }

.kapitel { list-style: none; padding: 0; margin: 0; display: grid; gap: 2px; }
.kapitel li { display: grid; grid-template-columns: 7.5em 1fr; gap: 16px; padding: 10px 14px; background: var(--vga-tief); }
.kapitel .jahr { font: 400 26px/1.1 var(--font-pixel); color: var(--gelb); }
.kapitel .was { min-width: 0; }
.kapitel .was small { display: block; color: var(--grau); font-size: 15px; }

.liste { margin: 0; padding-left: 0; list-style: none; display: grid; gap: 8px; max-width: 65ch; }
.liste li { padding-left: 1.6em; position: relative; }
.liste li::before { content: "■"; position: absolute; left: 0; color: var(--cyan); font-size: 13px; top: .25em; }
.liste b { color: var(--gelb); font-weight: 600; }

.hinweis { border: 2px dashed var(--grau); padding: 14px 16px; font-size: 16px; }
.hinweis b { color: var(--gelb); }

.fenster { background: var(--fenster); color: var(--fenster-text); box-shadow: 10px 10px 0 var(--schatten); border: 2px solid var(--weiss); }
.fenster-titel {
  background: var(--vga-tief); color: var(--weiss);
  font: 400 24px/1 var(--font-pixel);
  padding: 8px 14px;
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
}
.fenster-titel .modus { color: var(--cyan); }
.fenster-inhalt { padding: 20px; display: grid; gap: 16px; }
.status { margin: 0; font: 400 15px/1.45 var(--font-mono); padding: 10px 12px; background: var(--fenster-hell); border-left: 6px solid var(--vga-blau); }
.status.warn { border-left-color: var(--warn); }

form { display: grid; gap: 16px; }
.reihe { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.feld { display: grid; gap: 6px; min-width: 0; }
label { font: 700 15px/1.2 var(--font-mono); color: var(--fenster-text); }
label small { font-weight: 400; color: var(--fenster-leise); }
input[type="text"], select, textarea {
  font: 400 17px/1.5 var(--font-text);
  color: var(--fenster-text);
  background: #ffffff;
  border: 2px solid var(--fenster-text);
  border-radius: 0;
  padding: 9px 11px;
  width: 100%;
}
textarea { min-height: 9em; resize: vertical; }
input:focus-visible, select:focus-visible, textarea:focus-visible, button:focus-visible {
  outline: 3px solid var(--gelb); outline-offset: 2px;
}
.falle { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.check { display: flex; gap: 10px; align-items: flex-start; font: 400 16px/1.45 var(--font-text); }
.check input { width: 20px; height: 20px; margin-top: 3px; flex: none; accent-color: var(--vga-blau); }

.knoepfe { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
button {
  font: 400 24px/1 var(--font-pixel);
  padding: 10px 18px 8px;
  border: 2px solid var(--fenster-text);
  background: var(--vga-blau);
  color: var(--weiss);
  box-shadow: 4px 4px 0 var(--fenster-text);
  cursor: pointer;
}
button:hover { background: var(--vga-tief); }
button:active { transform: translate(2px, 2px); box-shadow: 2px 2px 0 var(--fenster-text); }
button.zweit { background: var(--fenster-hell); color: var(--fenster-text); }
button.zweit:hover { background: #ffffff; }
button:disabled { opacity: .55; cursor: default; }
.meldung { font: 400 15px/1.4 var(--font-mono); }
.meldung.ok { color: var(--ok); }
.meldung.fehler { color: var(--fehler); }

.danke { display: grid; gap: 12px; }
.danke p { margin: 0; }
.danke-titel { font: 400 32px/1.1 var(--font-pixel); color: var(--vga-blau); }
.danke textarea { font: 400 15px/1.45 var(--font-mono); min-height: 12em; background: #fffef2; }

footer { font: 400 20px/1.3 var(--font-pixel); color: var(--grau); }

@media (max-width: 620px) {
  body { font-size: 16px; }
  .lead { font-size: 18px; }
  .reihe { grid-template-columns: 1fr; }
  .kapitel li { grid-template-columns: 1fr; gap: 2px; }
  .fenster-inhalt { padding: 14px; }
  .fenster { box-shadow: 6px 6px 0 var(--schatten); }
}