/* Stylesheet des oeffentlichen E-Rechnungs-Validators (/e-rechnung-validator.html).
   Bewusst als externe Datei: die Content-Security-Policy erlaubt kein Inline-<script>,
   und Inline-styles sollen laut Projektregel vermieden werden — dynamische Zustaende
   werden ueber Klassen (.is-hidden, .val-state-*) geschaltet, nicht ueber style-Attribute. */

:root {
  --val-ok: #15803d;
  --val-ok-bg: #dcfce7;
  --val-warn: #92400e;
  --val-warn-bg: #fef3c7;
  --val-err: #b91c1c;
  --val-err-bg: #fee2e2;
  --val-ink: #0f172a;
  --val-muted: #64748b;
  --val-line: #e2e8f0;
  --val-surface: #f8fafc;
}

.val-wrap {
  max-width: 940px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- Kopf ---------- */
.val-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
}
.val-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--val-ink);
  text-decoration: none;
}
.val-logo .ic {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--blue-600, #2563eb);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
}
.val-header-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 0.92rem;
}
.val-header-nav a {
  color: var(--val-muted);
  text-decoration: none;
}
.val-header-nav a:hover {
  color: var(--blue-700, #1d4ed8);
}

.val-btn {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.94rem;
  font-family: inherit;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
}
.val-btn-primary {
  background: var(--blue-600, #2563eb);
  color: #fff;
}
.val-btn-primary:hover {
  background: var(--blue-700, #1d4ed8);
}
.val-btn-ghost {
  background: #fff;
  color: var(--blue-700, #1d4ed8);
  border-color: #cbd5e1;
}
.val-btn-ghost:hover {
  border-color: var(--blue-600, #2563eb);
}
.val-btn-sm {
  padding: 8px 14px;
  font-size: 0.88rem;
}
.val-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

/* ---------- Hero ---------- */
.val-hero {
  padding: 34px 0 6px;
  text-align: center;
}
.val-hero h1 {
  font-size: 2.15rem;
  line-height: 1.15;
  margin: 0 0 12px;
  color: var(--val-ink);
}
.val-hero p {
  font-size: 1.08rem;
  color: #475569;
  margin: 0 auto;
  max-width: 660px;
}
.val-trust {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 18px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  font-size: 0.86rem;
  color: var(--val-muted);
}
.val-trust li::before {
  content: "\2713";
  color: var(--green-600, #16a34a);
  font-weight: 700;
  margin-right: 6px;
}

/* ---------- Upload ---------- */
.val-drop {
  margin: 26px 0 10px;
  border: 2px dashed #cbd5e1;
  border-radius: 16px;
  background: var(--val-surface);
  padding: 40px 20px;
  text-align: center;
  transition: border-color 0.15s, background 0.15s;
}
.val-drop.is-dragging {
  border-color: var(--blue-600, #2563eb);
  background: var(--blue-50, #eff6ff);
}
.val-drop-icon {
  font-size: 34px;
  line-height: 1;
}
.val-drop h2 {
  font-size: 1.05rem;
  margin: 12px 0 4px;
  color: var(--val-ink);
}
.val-drop p {
  color: var(--val-muted);
  margin: 0 0 18px;
  font-size: 0.93rem;
}
.val-drop-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}
.val-note {
  font-size: 0.82rem;
  color: #94a3b8;
  text-align: center;
  margin: 0 0 8px;
}

/* ---------- Ergebnis ---------- */
.val-result {
  margin: 26px 0 10px;
}
.val-verdict {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  padding: 18px 20px;
  border-radius: 14px;
  border: 1px solid var(--val-line);
  background: #fff;
}
.val-verdict-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
}
.val-state-ok .val-verdict-badge {
  background: var(--val-ok-bg);
  color: var(--val-ok);
}
.val-state-warn .val-verdict-badge {
  background: var(--val-warn-bg);
  color: var(--val-warn);
}
.val-state-err .val-verdict-badge {
  background: var(--val-err-bg);
  color: var(--val-err);
}
.val-verdict-meta {
  color: var(--val-muted);
  font-size: 0.88rem;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
}
.val-verdict-actions {
  margin-left: auto;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.val-section-title {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #94a3b8;
  margin: 26px 0 10px;
  font-weight: 700;
}

/* Pruefschritte */
.val-checks {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
}
.val-check {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 12px 14px;
  border: 1px solid var(--val-line);
  border-radius: 10px;
  background: #fff;
}
.val-check-mark {
  font-weight: 800;
  line-height: 1.5;
  flex-shrink: 0;
  width: 1.2em;
  text-align: center;
}
.val-check-passed .val-check-mark {
  color: var(--green-600, #16a34a);
}
.val-check-warning .val-check-mark {
  color: #d97706;
}
.val-check-failed .val-check-mark {
  color: var(--red-600, #dc2626);
}
.val-check-skipped .val-check-mark {
  color: #94a3b8;
}
.val-check-label {
  font-weight: 600;
  color: var(--val-ink);
  font-size: 0.95rem;
}
.val-check-detail {
  color: var(--val-muted);
  font-size: 0.86rem;
}

/* Befunde */
.val-findings {
  display: grid;
  gap: 10px;
}
.val-finding {
  border: 1px solid var(--val-line);
  border-left-width: 4px;
  border-radius: 10px;
  padding: 12px 14px;
  background: #fff;
}
.val-finding-error {
  border-left-color: var(--red-600, #dc2626);
  background: #fffafa;
}
.val-finding-warning {
  border-left-color: #d97706;
  background: #fffdf7;
}
.val-finding-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
  font-weight: 600;
  color: var(--val-ink);
  font-size: 0.95rem;
}
.val-rule {
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.74rem;
  color: var(--val-muted);
  background: var(--val-surface);
  border: 1px solid var(--val-line);
  border-radius: 5px;
  padding: 1px 6px;
  text-decoration: none;
}
a.val-rule:hover {
  color: var(--blue-700, #1d4ed8);
  border-color: var(--blue-600, #2563eb);
  background: var(--blue-50, #eff6ff);
}
.val-finding-body {
  color: #475569;
  font-size: 0.9rem;
  margin-top: 4px;
}
.val-finding-tip {
  margin-top: 8px;
  padding: 8px 10px;
  border-radius: 6px;
  background: rgba(37, 99, 235, 0.07);
  color: #334155;
  font-size: 0.85rem;
}
.val-finding-origin {
  margin-top: 6px;
  font-size: 0.76rem;
  color: #94a3b8;
}

/* Eckdaten */
.val-facts {
  border: 1px solid var(--val-line);
  border-radius: 12px;
  background: #fff;
  overflow: hidden;
}
.val-facts dl {
  margin: 0;
  display: grid;
  grid-template-columns: minmax(150px, 220px) 1fr;
}
.val-facts dt,
.val-facts dd {
  margin: 0;
  padding: 9px 14px;
  border-top: 1px solid var(--val-line);
  font-size: 0.9rem;
}
.val-facts dt {
  color: var(--val-muted);
  background: var(--val-surface);
}
.val-facts dd {
  color: var(--val-ink);
  word-break: break-word;
}
.val-facts dl > dt:first-of-type,
.val-facts dl > dt:first-of-type + dd {
  border-top: 0;
}

/* Vorschau */
.val-preview {
  border: 1px solid var(--val-line);
  border-radius: 12px;
  overflow: hidden;
  background: #fff;
}
.val-preview iframe {
  /* Keine height-Regel: die Hoehe setzt validator.js als height-Attribut (Praesentations-
     hinweis), damit ohne Inline-style auf den Inhalt angepasst werden kann. */
  width: 100%;
  min-height: 420px;
  max-height: 720px;
  border: 0;
  display: block;
}

/* Statuszeile / Fehler */
.val-status {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid var(--val-line);
  background: #fff;
  color: var(--val-ink);
  font-weight: 600;
}
.val-status-error {
  border-color: #fecaca;
  background: var(--val-err-bg);
  color: var(--val-err);
}
.val-spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid #cbd5e1;
  border-top-color: var(--blue-600, #2563eb);
  border-radius: 50%;
  animation: val-spin 0.7s linear infinite;
  flex-shrink: 0;
}
@keyframes val-spin {
  to {
    transform: rotate(360deg);
  }
}
@media (prefers-reduced-motion: reduce) {
  .val-spinner {
    animation-duration: 2s;
  }
}

/* ---------- Statische Inhaltsblöcke ---------- */
.val-content {
  padding: 10px 0 0;
}
.val-content h2 {
  font-size: 1.3rem;
  color: var(--val-ink);
  margin: 34px 0 10px;
}
.val-content h3 {
  font-size: 1rem;
  color: var(--val-ink);
  margin: 18px 0 6px;
}
.val-content p {
  color: #475569;
  margin: 0 0 12px;
}
.val-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
  margin: 8px 0 10px;
}
.val-card {
  border: 1px solid var(--val-line);
  border-radius: 12px;
  padding: 16px;
  background: #fff;
}
.val-card h3 {
  margin: 0 0 6px;
  font-size: 0.98rem;
}
.val-card p {
  margin: 0;
  font-size: 0.9rem;
}

.val-table-scroll {
  overflow-x: auto;
  border: 1px solid var(--val-line);
  border-radius: 12px;
  background: #fff;
}
.val-formats {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  min-width: 520px;
}
.val-formats th,
.val-formats td {
  text-align: left;
  padding: 9px 14px;
  border-bottom: 1px solid var(--val-line);
}
.val-formats th {
  background: var(--val-surface);
  color: var(--val-muted);
  font-weight: 600;
  position: sticky;
  top: 0;
}
.val-formats tr:last-child td {
  border-bottom: 0;
}
.val-yes {
  color: var(--val-ok);
  font-weight: 700;
}
.val-part {
  color: var(--val-muted);
}

.val-faq details {
  border: 1px solid var(--val-line);
  border-radius: 10px;
  background: #fff;
  padding: 12px 16px;
  margin-bottom: 8px;
}
.val-faq summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--val-ink);
}
.val-faq p {
  margin: 10px 0 0;
  font-size: 0.92rem;
}

.val-cta {
  margin: 34px 0 10px;
  padding: 26px 22px;
  border-radius: 16px;
  background: rgba(37, 99, 235, 0.07);
  border: 1px solid rgba(37, 99, 235, 0.2);
  text-align: center;
}
.val-cta h2 {
  margin: 0 0 8px;
  font-size: 1.25rem;
  color: var(--val-ink);
}
.val-cta p {
  margin: 0 0 16px;
  color: #475569;
}

.val-related ul {
  list-style: none;
  padding: 0;
  margin: 0 0 8px;
  columns: 2;
  gap: 18px;
}
.val-related li {
  margin-bottom: 8px;
  break-inside: avoid;
}
.val-related a {
  color: var(--blue-700, #1d4ed8);
  text-decoration: none;
  font-size: 0.94rem;
}

.val-foot {
  border-top: 1px solid var(--val-line);
  margin-top: 34px;
  padding: 22px 0;
  color: #94a3b8;
  font-size: 0.85rem;
  display: flex;
  gap: 12px 16px;
  flex-wrap: wrap;
  justify-content: space-between;
}
.val-foot a {
  color: #64748b;
  text-decoration: none;
}

@media (max-width: 640px) {
  .val-hero h1 {
    font-size: 1.6rem;
  }
  .val-header-nav {
    display: none;
  }
  .val-facts dl {
    grid-template-columns: 1fr;
  }
  .val-facts dt {
    padding-bottom: 0;
    border-top: 1px solid var(--val-line);
  }
  .val-facts dd {
    border-top: 0;
    padding-top: 2px;
  }
  .val-related ul {
    columns: 1;
  }
  .val-verdict-actions {
    margin-left: 0;
  }
}

/* ============================================================
   Stapelprüfung, Umwandlung, Einbettung
   ============================================================ */
.val-convert-text { margin: 0 0 10px; color: var(--val-muted, #64748b); font-size: 0.95rem; }
.val-convert { display: flex; flex-wrap: wrap; gap: 8px; }
.val-batch-wrap { overflow-x: auto; margin-top: 16px; border: 1px solid #e2e8f0; border-radius: 10px; background: #fff; }
.val-batch { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.val-batch th, .val-batch td { padding: 9px 12px; text-align: left; border-bottom: 1px solid #e2e8f0; vertical-align: top; }
.val-batch th { font-weight: 600; background: #f8fafc; white-space: nowrap; }
.val-batch tr:last-child td { border-bottom: 0; }
.val-batch-num { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
.val-batch-finding { color: #475569; max-width: 340px; }
.val-batch-status { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 0.8rem; font-weight: 600; white-space: nowrap; }
.val-batch-gueltig { background: #dcfce7; color: #166534; }
.val-batch-warnung { background: #fef3c7; color: #92400e; }
.val-batch-fehler { background: #fee2e2; color: #991b1b; }
.val-batch-unlesbar { background: #e2e8f0; color: #334155; }
.val-batch-note { margin: 10px 0 0; font-size: 0.88rem; color: #64748b; }
.val-embed-code {
  margin: 12px 0;
  padding: 12px 14px;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  background: #f8fafc;
  overflow-x: auto;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.82rem;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-all;
}

/* Einbettbare Fassung (/embed/validator.html): kein Seitenrahmen, kompakt */
body[data-embed="1"] { background: transparent; }
body[data-embed="1"] .val-wrap { padding: 12px; max-width: 920px; }
.val-embed-brand { margin: 14px 0 4px; text-align: center; font-size: 0.82rem; color: #64748b; }
.val-embed-brand a { color: #2563eb; text-decoration: none; font-weight: 600; }

/* Prüfer innerhalb der Anwendung: keine Werbung für die Registrierung */
.val-in-app .val-cta,
.val-in-app .val-embed-brand { display: none; }