/* --- Globale Dark Mode Basis --- */
:root {
    /* Farbpalette für Dark Mode */
    --bg-color: #1a1a1a;
    --text-color: #e0e0e0;
    --primary-color: #0080ff; /* Ein helleres Blau für Akzente */
    --secondary-color: #004d99; /* Dunkleres Blau für Buttons/Header */
    --card-bg: #2b2b2b;
    --border-color: #444;
    --input-bg: #3c3c3c;
    --input-text: #fff;
    --error-color: #cc0000;
    --success-color: #38b000;
}

body {
    font-family: Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 20px;
    transition: background-color 0.3s;
}

/* --- Formular-Container (Standardansicht) --- */

.container {
    max-width: 900px;
    margin: 0 auto;
    background: var(--card-bg);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.4);
}

h1, h2, h3 {
    color: var(--primary-color);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 5px;
    margin-top: 20px;
}

/* --- Erklärung Box Styling --- */
.explanation-box {
    background-color: #3b3b3b; 
    border: 1px solid var(--primary-color);
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 20px;
}

.explanation-box h3 {
    color: var(--primary-color);
    border-bottom: 1px solid #555;
    padding-bottom: 5px;
    margin-top: 0;
}

.explanation-box p {
    font-size: 0.9em;
    line-height: 1.4;
    color: var(--text-color);
    margin-bottom: 5px;
}

/* --- Formular-Steuerung (Buttons und Eingaben) --- */

.button-group {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.doc-button {
    flex-grow: 1;
    padding: 10px;
    border: 2px solid var(--primary-color);
    background-color: var(--card-bg);
    color: var(--primary-color);
    cursor: pointer;
    border-radius: 6px;
    transition: background-color 0.2s, color 0.2s, border-color 0.2s;
    font-weight: bold;
    min-width: 150px;
}

.doc-button:hover {
    background-color: #383838;
    color: #fff;
}

.doc-button.active {
    background-color: var(--primary-color);
    color: #fff;
    font-weight: bold;
}

.input-group {
    margin-bottom: 15px;
}

.input-group label {
    display: block;
    font-weight: bold;
    margin-bottom: 5px;
    color: var(--text-color);
}

.input-group input[type="text"],
.input-group input[type="date"],
.input-group input[type="number"],
.input-group input[type="datetime-local"],
.input-group select,
.input-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-sizing: border-box;
    background-color: var(--input-bg);
    color: var(--input-text);
    font-size: 1em;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.input-group input:focus,
.input-group select:focus,
.input-group textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 128, 255, 0.4);
    outline: none;
}

.submit-button {
    display: block;
    width: 100%;
    padding: 15px;
    background-color: var(--success-color); /* Generieren/Aktualisieren */
    color: white;
    font-size: 1.1em;
    font-weight: bold;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.2s;
    margin-top: 20px;
}

.submit-button:hover {
    background-color: #2a8a00;
}


/* --- VORSCHAU-SEITE STYLES (Clean Mode) --- */

.document-preview-page.clean-mode {
    /* Setzt den Hintergrund der Seite auf Grau, um das A4-Dokument hervorzuheben */
    background-color: #444; 
    padding: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* Die Bar für den Zurück-Button */
.back-button-bar {
    width: 21cm; /* Gleiche Breite wie A4 */
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
    margin: 20px 0 10px 0;
}

.back-button-bar p {
    color: #ccc;
    font-size: 0.9em;
}

.back-button {
    padding: 10px 20px;
    background-color: var(--error-color);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.2s;
}

.back-button:hover {
    background-color: #aa0000;
}

/* A4-Vorschau-Box - WICHTIG FÜR DAS FORMAT UND DEN UMBRUCH */
.a4-page-preview {
    background: white;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
    margin: 0 auto 50px auto; 
    width: 21cm; /* A4 width */
    box-sizing: border-box;
    
    /* Erzeugt einen visuellen Seitenumbruch in der Vorschau */
    display: flex;
    flex-direction: column;
}

/* Style für das Dokument-Layout (DAS PAPIER SELBST) */
.document-body {
    /* Definiert die Größe der ersten Seite in der Vorschau */
    min-height: 25.7cm; /* 29.7cm (A4 Höhe) - 2cm oben - 2cm unten (Padding) */
    padding: 2cm; 
    font-family: 'Times New Roman', serif;
    font-size: 11pt;
    line-height: 1.5;
    color: #000;
    background-color: #fff;
    width: 100%;
    box-sizing: border-box;
    
    /* Erzwingt den Seitenumbruch für den Druck */
    page-break-after: always;
}

/* --- DRUCK- UND PAGINIERUNGS-STEUERUNG --- */

/* @page ist wichtig für Druck/PDF-Layout */
@page {
    size: A4;
    margin: 2cm; /* Steuert den Rand der gedruckten Seite */
}

@media print {
    /* Versteckt die UI-Elemente */
    body, .document-preview-page.clean-mode {
        background: white !important;
        padding: 0 !important;
        margin: 0 !important;
        width: 100% !important;
    }
    
    .back-button-bar, .container { display: none !important; }

    /* A4-Preview-Wrapper wird für den Druck auf die volle Größe gesetzt */
    .a4-page-preview {
        background-color: #fff !important;
        box-shadow: none !important;
        margin: 0 !important;
        padding: 0 !important; 
        width: 100% !important;
    }
    
    /* Dokumenten-Inhalt: Kein Padding im Druck, damit @page greift */
    .document-body {
        padding: 0 !important; 
        min-height: auto !important; 
    }

    /* Paginierungs-Regeln */
    .doc-content table, .doc-content ul, .signature-block, .explanation-box {
        page-break-inside: avoid;
    }
    
    .document-body:last-child {
        page-break-after: auto;
    }
}


/* --- Dokumenten-Styles (White Mode) --- */
.header-doc {
    text-align: center;
    border-bottom: 3px solid #000;
    margin-bottom: 30px;
    padding-bottom: 15px;
    overflow: auto;
}

.doc-logo {
    display: block;
    margin: 0 auto 10px;
    max-height: 100px;
    width: auto;
}

.doc-title {
    font-size: 18pt;
    font-weight: bold;
    margin-top: 10px;
    margin-bottom: 5px;
}

.doc-metadata {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    font-size: 10pt;
}
.doc-metadata div {
    flex: 1;
}
.doc-metadata p {
    margin: 0;
}

.doc-content {
    margin-top: 20px;
}

.doc-content h2 {
    font-size: 14pt;
    font-weight: bold;
    border-bottom: 1px solid #000;
    margin-top: 30px;
}

.doc-content h3 {
    font-size: 12pt;
    font-style: italic;
    border-bottom: none;
    margin-top: 20px;
    color: #000;
}

.doc-content ul {
    list-style-type: disc;
    margin-left: 20px;
    padding-left: 0;
}

.doc-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 15px 0;
}
.doc-content th, .doc-content td {
    border: 1px solid #000;
    padding: 8px;
    text-align: left;
}
.doc-content th {
    background-color: #f2f2f2;
}

.signature-block {
    display: flex;
    justify-content: space-between;
    margin-top: 50px;
    padding-top: 10px;
    border-top: 1px solid #000;
}
.signature-block div {
    flex: 1;
    text-align: center;
}
.signature-line {
    font-style: italic;
    font-size: 10pt;
}