@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@500;700&family=DM+Sans:wght@300;400;500;600&display=swap');

  /* ─── KONFIGURATION: API KEY & AUFTRAGNEHMER ─────────────────────────────
     Trage hier einmalig deinen Anthropic API-Key und deine Firmendaten ein.
     Die Seite funktioniert danach ohne weitere Änderungen.
  ─────────────────────────────────────────────────────────────────────────── */

  :root {
    --ink: #0f1923;
    --ink-muted: #4a5568;
    --ink-light: #718096;
    --bg: #f7f6f2;
    --bg-card: #ffffff;
    --accent: #1a3a5c;
    --accent-light: #e8eef5;
    --accent-hover: #122d4a;
    --border: #e2ddd6;
    --border-focus: #1a3a5c;
    --success: #2d6a4f;
    --success-bg: #d8f3dc;
    --danger: #c62828;
    --danger-bg: #fde8e8;
    --radius: 8px;
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'DM Sans', system-ui, sans-serif;
  }

  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

  body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--ink);
    min-height: 100vh;
    font-size: 15px;
    line-height: 1.6;
  }


  /* ── LAYOUT ── */
  .container {
    max-width: 860px;
    margin: 0 auto;
    padding: 40px 24px 80px;
  }

  .intro {
    margin-bottom: 36px;
  }
  .intro h1 {
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 8px;
  }
  .intro p {
    color: var(--ink-muted);
    font-size: 14px;
    font-weight: 300;
  }

  /* ── API-KEY BANNER ── */
  #api-key-banner {
    background: #fffbeb;
    border: 1px solid #f59e0b;
    border-radius: var(--radius);
    padding: 14px 18px;
    margin-bottom: 28px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    color: #92400e;
  }
  #api-key-banner.hidden { display: none; }
  #api-key-banner input {
    flex: 1;
    border: 1px solid #f59e0b;
    border-radius: 5px;
    padding: 6px 10px;
    font-size: 13px;
    font-family: monospace;
    background: white;
    color: var(--ink);
  }
  #api-key-banner button {
    background: #f59e0b;
    color: white;
    border: none;
    border-radius: 5px;
    padding: 7px 14px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
  }

  /* ── CARD ── */
  .card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 32px;
    margin-bottom: 24px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.04);
  }
  .card-title {
    font-family: var(--font-display);
    font-size: 17px;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 10px;
  }
  .card-title .step {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px; height: 26px;
    background: var(--accent);
    color: white;
    border-radius: 50%;
    font-family: var(--font-body);
    font-size: 12px;
    font-weight: 600;
    flex-shrink: 0;
  }
  .card-desc {
    font-size: 13px;
    color: var(--ink-light);
    margin-bottom: 24px;
    padding-left: 36px;
  }

  /* ── GRID ── */
  .field-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .field-grid .full { grid-column: 1 / -1; }

  /* ── FIELDS ── */
  .field {
    display: flex;
    flex-direction: column;
    gap: 5px;
  }
  label {
    font-size: 12.5px;
    font-weight: 600;
    color: var(--ink-muted);
    letter-spacing: 0.03em;
    text-transform: uppercase;
  }
  label .req { color: var(--danger); margin-left: 2px; }
  input[type="text"], input[type="email"], input[type="date"],
  select, textarea {
    width: 100%;
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    padding: 10px 14px;
    font-family: var(--font-body);
    font-size: 14px;
    color: var(--ink);
    background: var(--bg-card);
    transition: border-color 0.15s, box-shadow 0.15s;
    outline: none;
  }
  input:focus, select:focus, textarea:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(26,58,92,0.1);
  }
  textarea { resize: vertical; min-height: 90px; line-height: 1.5; }
  select { cursor: pointer; }

  /* ── CHECKBOXES ── */
  .check-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 2px;
  }
  .check-item {
    display: flex;
    align-items: center;
    gap: 6px;
    background: var(--bg);
    border: 1.5px solid var(--border);
    border-radius: 20px;
    padding: 5px 12px;
    cursor: pointer;
    transition: all 0.12s;
    font-size: 13px;
    user-select: none;
  }
  .check-item input[type="checkbox"] {
    width: auto;
    border: none;
    padding: 0;
    accent-color: var(--accent);
  }
  .check-item:has(input:checked) {
    background: var(--accent-light);
    border-color: var(--accent);
    color: var(--accent);
    font-weight: 500;
  }

  /* ── DIVIDER ── */
  .divider {
    border: none;
    border-top: 1px solid var(--border);
    margin: 24px 0;
  }

  /* ── SUBMIT ── */
  .submit-area {
    text-align: center;
    margin-top: 8px;
  }
  .btn-generate {
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 14px 36px;
    font-family: var(--font-body);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    letter-spacing: 0.02em;
    transition: background 0.15s, transform 0.1s, box-shadow 0.15s;
    box-shadow: 0 2px 8px rgba(26,58,92,0.25);
  }
  .btn-generate:hover:not(:disabled) {
    background: var(--accent-hover);
    box-shadow: 0 4px 16px rgba(26,58,92,0.3);
    transform: translateY(-1px);
  }
  .btn-generate:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
  }

  /* ── LOADER ── */
  #loader {
    display: none;
    text-align: center;
    padding: 48px 24px;
    color: var(--ink-muted);
  }
  #loader.active { display: block; }
  .loader-spinner {
    width: 40px; height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 16px;
  }
  @keyframes spin { to { transform: rotate(360deg); } }

  /* ── ERROR ── */
  #error-box {
    display: none;
    background: var(--danger-bg);
    border: 1px solid var(--danger);
    border-radius: var(--radius);
    padding: 14px 18px;
    color: var(--danger);
    font-size: 14px;
    margin-top: 16px;
  }
  #error-box.active { display: block; }

  /* ── RESULT ── */
  #result-area {
    display: none;
    margin-top: 32px;
  }
  #result-area.active { display: block; }

  .result-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-bottom: 28px;
    flex-wrap: wrap;
  }
  .btn-pdf {
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 12px 28px;
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: background 0.15s;
    box-shadow: 0 2px 8px rgba(26,58,92,0.2);
  }
  .btn-pdf:hover { background: var(--accent-hover); }
  .btn-reset {
    background: transparent;
    color: var(--ink-muted);
    border: 1.5px solid var(--border);
    border-radius: 8px;
    padding: 12px 24px;
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
  }
  .btn-reset:hover { border-color: var(--ink-muted); color: var(--ink); }

  /* ── AVV PREVIEW ── */
  #avv-preview {
    background: white;
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 56px 64px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.07);
    font-family: 'Times New Roman', serif;
    color: #1a1a1a;
    font-size: 12pt;
    line-height: 1.65;
  }

  /* ── AVV DOCUMENT STYLES ── */
  #avv-content h1 {
    font-size: 18pt;
    font-weight: bold;
    text-align: center;
    margin-bottom: 6pt;
    color: #0f1923;
  }
  #avv-content .doc-subtitle {
    font-size: 11pt;
    text-align: center;
    color: #555;
    margin-bottom: 32pt;
  }
  #avv-content .parties-box {
    border: 1px solid #ccc;
    border-radius: 4px;
    padding: 14pt;
    margin-bottom: 28pt;
    background: #f9f9f9;
    font-size: 10.5pt;
  }
  #avv-content .parties-box table {
    width: 100%;
    border-collapse: collapse;
  }
  #avv-content .parties-box td {
    padding: 4pt 8pt;
    vertical-align: top;
  }
  #avv-content .parties-box td:first-child {
    font-weight: bold;
    width: 140pt;
    white-space: nowrap;
  }
  #avv-content h2 {
    font-size: 12pt;
    font-weight: bold;
    margin-top: 22pt;
    margin-bottom: 6pt;
    border-bottom: 1px solid #ddd;
    padding-bottom: 3pt;
    color: #0f1923;
  }
  #avv-content h3 {
    font-size: 11pt;
    font-weight: bold;
    margin-top: 12pt;
    margin-bottom: 4pt;
  }
  #avv-content p {
    margin-bottom: 8pt;
    text-align: justify;
    hyphens: auto;
  }
  #avv-content ul {
    padding-left: 18pt;
    margin-bottom: 8pt;
  }
  #avv-content ul li {
    margin-bottom: 3pt;
  }
  #avv-content .sig-block {
    margin-top: 40pt;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40pt;
  }
  #avv-content .sig-col p {
    margin-bottom: 4pt;
  }
  #avv-content .sig-line {
    border-bottom: 1px solid #333;
    height: 36pt;
    margin-bottom: 6pt;
  }
  #avv-content .sig-label {
    font-size: 9pt;
    color: #555;
  }
  #avv-content .page-break { page-break-before: always; }
  #avv-content .anlage-title {
    font-size: 14pt;
    font-weight: bold;
    text-align: center;
    margin: 0 0 6pt;
  }
  #avv-content .anlage-sub {
    font-size: 10pt;
    text-align: center;
    color: #555;
    margin-bottom: 24pt;
  }

  /* ── FOOTER ── */
  footer {
    text-align: center;
    font-size: 12px;
    color: var(--ink-light);
    padding: 24px;
    border-top: 1px solid var(--border);
    margin-top: 60px;
  }

  @media (max-width: 600px) {
    .field-grid { grid-template-columns: 1fr; }
    #avv-preview { padding: 28px 20px; }
    .container { padding: 24px 16px 60px; }
    .result-actions { flex-direction: column; align-items: stretch; }
    .btn-pdf, .btn-reset { justify-content: center; }
  }

  @media print {
    .intro, .card, .result-actions, footer { display: none !important; }
    #avv-preview { box-shadow: none; border: none; padding: 0; }
    body { background: white; }
  }