:root {
  --fg: #111;
  --fg-soft: #555;
  --fg-faint: #888;
  --bg: #fff;
  --bg-soft: #f6f6f6;
  --line: #ddd;
  --line-strong: #111;
  --err: #b00020;
  --ok: #1a7f37;
  /* Buttons: hugo-booker-Stil (flach, dunkel) */
  --accent: #4a5568;
  --accent-ink: #fff;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
               "Helvetica Neue", Arial, sans-serif;
  font-size: 14.5px;
  line-height: 1.5;
}

header, footer { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }
header {
  padding-top: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--line);
}
header h1 { margin: 0; font-size: 1.5rem; font-weight: 600; letter-spacing: -0.01em; }
header .tag { margin: 0.2rem 0 0; color: var(--fg-soft); font-size: 0.85rem; }

.layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: 2rem;
  align-items: stretch; /* Vorschau nimmt die Höhe der linken Spalte mit */
}
@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  /* Gestapelt: die Vorschau bekommt eine eigene, sinnvolle Höhe statt der
     (dann sehr kurzen) gestreckten Zeilenhöhe. */
  .preview { height: 80vh; }
}
/* Mittlere Breiten: Vorschau auf die Breite des Quelle-Rahmens angleichen */
@media (max-width: 1200px) and (min-width: 901px) {
  .layout { grid-template-columns: 1fr 1fr; }
}

fieldset {
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1rem 1.25rem 1.25rem;
  margin: 0 0 1.25rem;
}
legend {
  padding: 0 0.5rem;
  font-weight: 600;
  font-size: 0.8rem;
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--fg-soft);
}

label {
  display: block;
  font-size: 0.82rem;
  color: var(--fg-soft);
  margin-bottom: 0.85rem;
}
label:last-child { margin-bottom: 0; }

input[type=text], input[type=date], select, textarea {
  display: block;
  width: 100%;
  margin-top: 0.25rem;
  padding: 0.45rem 0.55rem;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: #fff;
  color: var(--fg);
  font: inherit;
}
textarea { min-height: 4em; resize: vertical; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--line-strong); }

/* ── custom file pickers ── */
.field-label {
  display: block;
  font-size: 0.82rem;
  color: var(--fg-soft);
  margin-bottom: 0.3rem;
}
.field-label .help { display: inline; margin: 0; }
.file-pick {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.85rem;
}
.file-btn { position: relative; display: inline-block; margin: 0; cursor: pointer; }
.file-btn input[type=file] {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}
/* Datei-Picker im hugo-booker-Stil (flach, dunkel) */
.file-btn-inner {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.95rem;
  font-size: 0.8rem;
  color: var(--accent-ink);
  border: 0;
  border-radius: 6px;
  background: var(--accent);
  cursor: pointer;
  transition: filter 0.12s ease;
}
.file-btn:hover .file-btn-inner { filter: brightness(1.08); }
.file-btn input[type=file]:active + .file-btn-inner,
.file-btn:active .file-btn-inner { filter: brightness(0.95); }
/* hellere Variante für den optionalen Logo-Picker */
.file-btn-soft .file-btn-inner {
  background: #fff;
  color: var(--fg);
  border: 1px solid var(--line);
}
.file-btn-soft:hover .file-btn-inner { filter: none; background: var(--bg-soft); }
.file-btn .ico { font-style: normal; font-size: 0.9rem; line-height: 1; }
.file-name {
  font-size: 0.8rem;
  color: var(--fg-faint);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
  min-width: 0;
}
.file-name.has-file { color: var(--fg); }
.logo-size-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.82rem;
  color: var(--fg-soft);
  margin: -0.3rem 0 0.85rem;
}
.logo-size-row select { width: auto; margin: 0; padding: 0.3rem 0.5rem; }

.row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

.checks {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.4rem 1rem;
}
.checks label {
  margin: 0;
  color: var(--fg);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.88rem;
}
.checks input { width: auto; margin: 0; }

.help { display: block; color: var(--fg-faint); font-size: 0.78rem; margin-top: 0.4rem; }

.actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.5rem;
}
.actions button { flex: 0 0 auto; white-space: nowrap; }

/* Buttons im hugo-booker-Stil (flach, dunkel) — Größe an dieses Formular angepasst */
button {
  background: var(--accent);
  color: var(--accent-ink);
  border: 0;
  padding: 0.55rem 1.4rem;
  font: inherit;
  border-radius: 6px;
  cursor: pointer;
  transition: filter 0.12s ease;
}
button:hover { filter: brightness(1.08); }
button:active { filter: brightness(0.95); }
/* Sekundärer Button (z. B. Vorschau): hell, umrandet — etwas kräftiger als der weiße Hintergrund */
button[type=button] {
  background: var(--bg-soft);
  color: var(--fg);
  border: 1px solid #c4c9d0;
}
button[type=button]:hover { filter: none; background: #ececec; border-color: #b4bac2; }
button[type=button]:active { filter: none; background: #e4e4e4; }
button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  filter: none;
}

#status {
  flex-basis: 100%;        /* eigene Zeile unter den Buttons, volle Breite */
  font-size: 0.82rem;
  color: var(--fg-soft);
  white-space: pre-wrap;   /* Zeilenumbrüche im Fehlertext erhalten */
  overflow-wrap: anywhere; /* lange Pfade/URLs umbrechen statt abschneiden */
}
#status.err { color: var(--err); }
#status.ok  { color: var(--ok); }

/* Preview pane */
.preview {
  position: relative; /* Bezugsrahmen für .preview-empty (position: absolute) */
  margin-top: 0.4rem;  /* gleicht den Legenden-Überstand des ersten Rahmens aus */
  margin-bottom: 15px; /* Vorschau 30px niedriger als die linke Spalte */
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--bg-soft);
  /* Keine feste Höhe: Das Grid (align-items: stretch) streckt die Vorschau
     auf die Höhe der linken Spalte – egal ob Template-Felder auf- oder
     zugeklappt sind. #preview-frame (flex: 1) füllt den Rest unter der
     Toolbar. */
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.preview-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--line);
  background: var(--bg);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--fg-soft);
}
.preview-toolbar button {
  padding: 0.1rem 0.45rem;
  font-size: 1rem;
  line-height: 1;
  font-weight: 400;
  background: transparent;
  color: var(--fg-soft);
  border: 1px solid var(--line);
  border-radius: 6px;
}
.preview-toolbar button:hover {
  background: var(--bg-soft);
  color: var(--fg);
  filter: none;
}
.preview-toolbar button:active { filter: none; }
#preview-frame { flex: 1; width: 100%; border: 0; background: var(--bg-soft); }
.preview-empty {
  position: absolute;
  inset: 2.5rem 0 0 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--fg-faint);
  font-size: 0.9rem;
  text-align: center;
  padding: 1rem;
  pointer-events: none;
}
.preview.has-pdf .preview-empty { display: none; }

footer {
  padding: 1.5rem;
  border-top: 1px solid var(--line);
  color: var(--fg-soft);
  font-size: 0.78rem;
}
footer a { color: var(--fg-soft); }