/*
  Gestaltung nach dem Vorbild eines Formular-Laufzettels: Papierton, schmale
  Versalien für Feldbezeichnungen, Festbreitenschrift für alles, was eine
  Kennung oder ein Betrag ist - und ein Stempel als Urteil.
*/

:root {
  --paper:      #e7eae3;
  --card:       #f4f6f1;
  --ink:        #1f2a2e;
  --ink-soft:   #5d6d72;
  --rule:       #c2cbc3;
  --accent:     #2b4c7e;
  --stamp-ok:   #2e6b4f;
  --stamp-bad:  #a8342a;

  --condensed: "Arial Narrow", "Liberation Sans Narrow", "Helvetica Neue Condensed", "Nimbus Sans Narrow", sans-serif;
  --body: ui-sans-serif, system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "DejaVu Sans Mono", "Liberation Mono", Menlo, monospace;

  --gap: clamp(1rem, 2.5vw, 1.75rem);
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper:    #1a2124;
    --card:     #222b2f;
    --ink:      #e3e8e4;
    --ink-soft: #97a5a8;
    --rule:     #3c484c;
    --accent:   #8fb0dd;
    --stamp-ok: #6fc79b;
    --stamp-bad:#e08b80;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: clamp(1.25rem, 4vw, 3rem) clamp(1rem, 4vw, 3rem) 2rem;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.55;
  /* Feine Rasterung wie auf Durchschlagpapier. */
  background-image: repeating-linear-gradient(180deg, transparent 0 27px, rgba(31, 42, 46, .035) 27px 28px);
}

/* ---------- Kopf ---------- */

.masthead {
  max-width: 68rem;
  margin: 0 auto clamp(1.5rem, 4vw, 2.5rem);
  border-bottom: 2px solid var(--ink);
  padding-bottom: 1rem;
}

.eyebrow {
  margin: 0;
  font-family: var(--condensed);
  font-size: .8rem;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

h1 {
  margin: .15em 0 .1em;
  font-family: var(--condensed);
  font-size: clamp(2.4rem, 7vw, 4rem);
  font-weight: 700;
  letter-spacing: -.005em;
  text-transform: uppercase;
  line-height: .95;
}

.lede { margin: 0; color: var(--ink-soft); max-width: 46ch; }

/* ---------- Aufteilung ---------- */

.desk {
  max-width: 68rem;
  margin: 0 auto;
  display: grid;
  gap: var(--gap);
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  align-items: start;
}

@media (max-width: 46rem) {
  .desk { grid-template-columns: 1fr; }
}

.panel {
  background: var(--card);
  border: 1px solid var(--rule);
  padding: var(--gap);
}

.panel-title {
  margin: 0 0 1rem;
  padding-bottom: .5rem;
  border-bottom: 1px solid var(--rule);
  font-family: var(--condensed);
  font-size: .85rem;
  font-weight: 700;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

/* ---------- Ablage ---------- */

.drop {
  display: flex;
  gap: 1rem;
  align-items: center;
  padding: clamp(1.25rem, 4vw, 2rem);
  border: 2px dashed var(--rule);
  background: transparent;
  cursor: pointer;
  transition: border-color .15s, background-color .15s;
}

.drop:hover, .drop:focus-within { border-color: var(--accent); }
.drop.is-over { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 8%, transparent); }
.drop:focus-within { outline: 2px solid var(--accent); outline-offset: 3px; }

.drop-mark { color: var(--ink-soft); flex: none; }
.drop-text { display: block; }
.drop-text strong { display: block; font-size: 1.05rem; }
.drop-text small { color: var(--ink-soft); }
.drop.is-loaded .drop-text strong { font-family: var(--mono); font-size: .95rem; word-break: break-all; }

/* ---------- Felder ---------- */

.field { margin-top: 1.25rem; }

.field label {
  display: block;
  font-family: var(--condensed);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: .35rem;
}

.field input {
  width: 100%;
  padding: .6rem .7rem;
  border: 1px solid var(--rule);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 1rem;
  letter-spacing: .04em;
}

.field input:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }
.field input[aria-invalid="true"] { border-color: var(--stamp-bad); }
.field small { display: block; margin-top: .35rem; color: var(--ink-soft); font-size: .82rem; }

.go {
  margin-top: 1.5rem;
  width: 100%;
  padding: .8rem 1rem;
  border: none;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--condensed);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
  cursor: pointer;
}

.go:hover { background: var(--accent); }
.go:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.go[disabled] { opacity: .55; cursor: progress; }

/* ---------- Laufzettel ---------- */

.slip-empty { color: var(--ink-soft); font-family: var(--mono); font-size: .9rem; }
.slip-empty p { margin: 0; }

.verdict { display: flex; justify-content: flex-end; margin-bottom: .5rem; min-height: 3.4rem; }

/* Der Stempel: das eine laute Element auf der Seite. */
.stamp {
  display: inline-block;
  padding: .3em .7em;
  border: 3px double currentColor;
  border-radius: 2px;
  font-family: var(--condensed);
  font-size: clamp(1.1rem, 3.4vw, 1.6rem);
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  opacity: .88;
  transform: rotate(-4deg);
  animation: press .22s cubic-bezier(.2, 1.4, .4, 1) both;
}

.stamp[data-verdict="ok"]   { color: var(--stamp-ok); }
.stamp[data-verdict="bad"]  { color: var(--stamp-bad); }
.stamp[data-verdict="open"] { color: var(--ink-soft); transform: rotate(-2deg); }

@keyframes press {
  from { transform: rotate(-4deg) scale(1.7); opacity: 0; }
  to   { transform: rotate(-4deg) scale(1); opacity: .88; }
}

.steps { margin: 0; display: grid; grid-template-columns: max-content minmax(0, 1fr); }

.steps dt {
  font-family: var(--condensed);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--ink-soft);
  padding: .45rem 1rem .45rem 0;
  border-top: 1px solid var(--rule);
  white-space: nowrap;
}

.steps dd {
  margin: 0;
  padding: .45rem 0;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: .9rem;
  word-break: break-word;
}

.steps .muted { color: var(--ink-soft); }

.block { margin-top: 1.5rem; }

.block h3 {
  margin: 0 0 .5rem;
  font-family: var(--condensed);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.repairs, .notes, .errors { margin: 0; padding: 0; list-style: none; }

.repairs li, .notes li, .errors li {
  padding: .5rem 0 .5rem .9rem;
  border-left: 3px solid var(--rule);
  margin-bottom: .4rem;
  font-size: .9rem;
}

.repairs li { border-left-color: var(--accent); }
.errors li { border-left-color: var(--stamp-bad); }
.notes li { border-left-color: var(--ink-soft); }

.repairs .what { font-family: var(--condensed); letter-spacing: .1em; text-transform: uppercase; font-weight: 700; font-size: .8rem; }
.repairs .change { font-family: var(--mono); font-size: .85rem; display: block; margin: .15rem 0; }
.repairs .change del { color: var(--stamp-bad); text-decoration-thickness: 1px; }
.repairs .change ins { color: var(--stamp-ok); text-decoration: none; }
.repairs .why, .errors .where { display: block; color: var(--ink-soft); font-size: .82rem; }
.errors .code { font-family: var(--mono); font-weight: 700; }

.actions { margin-top: 1.75rem; display: flex; gap: .75rem; flex-wrap: wrap; }

.download, .ghost {
  padding: .65rem 1.1rem;
  font-family: var(--condensed);
  font-size: .95rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  cursor: pointer;
  border: 2px solid var(--ink);
}

.download { background: var(--ink); color: var(--paper); text-decoration: none; }
.download:hover { background: var(--accent); border-color: var(--accent); }
.ghost { background: transparent; color: var(--ink); }
.ghost:hover { border-color: var(--accent); color: var(--accent); }
.download:focus-visible, .ghost:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* ---------- Fuß ---------- */

.colophon {
  max-width: 68rem;
  margin: clamp(2rem, 5vw, 3.5rem) auto 0;
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
  color: var(--ink-soft);
  font-size: .82rem;
}

.colophon p { margin: 0 0 .25rem; }
.engine { font-family: var(--mono); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}