/* === FILE PICKER === */
.file-picker-section {
    margin-bottom: 30px;
    padding: 25px;
    background-color: #fff;
    border: 2px solid #ddd;
    border-radius: 8px;
}

.file-picker-section h3,
.rechnungstyp-section h3 {
    font-family: 'Oswald', sans-serif;
    font-size: 1.2rem;
    color: var(--anthrazit);
    margin-bottom: 15px;
    border-bottom: 2px solid var(--gelb-warm);
    padding-bottom: 5px;
}

.file-list {
    margin-bottom: 15px;
}

.file-loading {
    color: #999;
    font-style: italic;
    font-family: 'Oswald', sans-serif;
    padding: 10px 0;
}

.file-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 15px;
    margin-bottom: 5px;
    border: 1px solid #ddd;
    border-radius: 4px;
    cursor: pointer;
    font-family: 'Oswald', sans-serif;
    font-size: 1rem;
    background-color: var(--grau-hell);
    transition: all 0.2s;
}

.file-item:hover {
    background-color: #eee;
    border-color: var(--gelb-warm);
}

.file-item.selected {
    background-color: var(--gelb-warm);
    border-color: var(--gelb-warm);
    color: var(--anthrazit);
    font-weight: 600;
}

.file-item-icon {
    font-size: 1.1rem;
}

.file-picker-actions {
    margin-top: 10px;
}

/* === RECHNUNGSTYP === */
.rechnungstyp-section {
    margin-bottom: 30px;
    padding: 25px;
    background-color: #fff;
    border: 2px solid #ddd;
    border-radius: 8px;
}

.radio-group-horizontal {
    display: flex;
    gap: 25px;
    flex-wrap: wrap;
}

.radio-group-horizontal .radio-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: 'Oswald', sans-serif;
    font-size: 1.1rem;
    cursor: pointer;
    margin-bottom: 0;
}

.radio-group-horizontal input[type="radio"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.privat-bandname-container {
    display: none;
    align-items: center;
    gap: 15px;
    margin-top: 15px;
}

.privat-bandname-label {
    font-family: 'Oswald', sans-serif;
    font-weight: 600;
    color: var(--anthrazit);
}

.privat-bandname-input {
    padding: 8px 12px;
    border: 2px solid #ddd;
    border-radius: 4px;
    font-family: 'Oswald', sans-serif;
    font-size: 1rem;
    min-width: 300px;
    transition: border-color 0.3s;
}

.privat-bandname-input:focus {
    outline: none;
    border-color: var(--gelb-warm);
}

/* === RECHNUNGSVORLAGE (DIN A4) === */
.rechnung-vorlage {
    max-width: 21cm;
    margin: 40px auto;
    padding: 1.5cm 2.5cm 2cm 2.5cm;
    background-color: #fff;
    border: 1px solid #ccc;
    box-shadow: 0 0 20px rgba(0,0,0,0.1);
    min-height: 29.7cm;
    font-family: 'Oswald', sans-serif;
    font-size: 11pt;
    line-height: 1.6;
}

/* === ABSENDER === */
.absender-block {
    margin-bottom: 35px;
}

.absender-input {
    display: block;
    border: none;
    border-bottom: 1px solid transparent;
    padding: 2px 0;
    font-family: 'Oswald', sans-serif;
    font-size: 11pt;
    background-color: transparent;
    width: 100%;
    max-width: 380px;
    line-height: 1.6;
    color: #333;
}

.absender-input:focus {
    outline: none;
    border-bottom: 1px solid var(--gelb-warm);
    background-color: #fffef0;
}

.absender-input.absender-name {
    font-weight: 600;
    font-size: 12pt;
}

/* === EMPFÄNGER === */
.empfaenger-block {
    margin-bottom: 40px;
}

.empfaenger-an {
    font-size: 10pt;
    color: #666;
    margin-bottom: 5px;
}

.empfaenger-input {
    display: block;
    width: 100%;
    max-width: 420px;
    border: none;
    border-bottom: 1px solid #ccc;
    padding: 4px 0;
    margin-bottom: 4px;
    font-family: 'Oswald', sans-serif;
    font-size: 11pt;
    background-color: transparent;
}

.empfaenger-input:focus {
    outline: none;
    border-bottom: 2px solid var(--gelb-warm);
    background-color: #fffef0;
}

.adresse-zeile {
    display: flex;
    gap: 10px;
    max-width: 420px;
}

.adresse-zeile .empfaenger-input {
    max-width: none;
    display: inline-block;
}

.strasse-input {
    flex: 1;
}

.hausnummer-input {
    flex: 0 0 70px;
    min-width: 0;
}

.plz-input {
    flex: 0 0 80px;
    min-width: 0;
}

.ort-input {
    flex: 1;
}

/* === DATUM RECHTS === */
.datum-rechts {
    text-align: right;
    margin-bottom: 30px;
    font-family: 'Oswald', sans-serif;
    font-size: 11pt;
}

.datum-input-rechnung {
    border: none;
    border-bottom: 1px solid #ccc;
    padding: 2px 5px;
    font-family: 'Oswald', sans-serif;
    font-size: 11pt;
    background-color: transparent;
    width: 120px;
    text-align: right;
}

.datum-input-rechnung:focus {
    outline: none;
    border-bottom: 2px solid var(--gelb-warm);
    background-color: #fffef0;
}

/* === RECHNUNG TITEL === */
.rechnung-titel {
    font-family: 'Oswald', sans-serif;
    font-size: 14pt;
    font-weight: 600;
    color: var(--anthrazit);
    margin-bottom: 20px;
}

.rechnung-nr-label {
    font-weight: 400;
    font-size: 12pt;
}

.btn-renr-laden {
    margin-left: 12px;
    padding: 3px 10px;
    font-family: 'Oswald', sans-serif;
    font-size: 10pt;
    font-weight: 400;
    background: none;
    border: 1px solid var(--gelb-warm);
    border-radius: 4px;
    color: var(--anthrazit);
    cursor: pointer;
    vertical-align: middle;
    transition: background 0.2s;
}

.btn-renr-laden:hover {
    background-color: var(--gelb-warm);
}

.btn-renr-laden:disabled {
    opacity: 0.5;
    cursor: default;
}

.rechnung-nr-input {
    border: none;
    border-bottom: 1px solid #ccc;
    padding: 2px 5px;
    font-family: 'Oswald', sans-serif;
    font-size: 13pt;
    font-weight: 600;
    background-color: transparent;
    width: 90px;
}

.rechnung-nr-input:focus {
    outline: none;
    border-bottom: 2px solid var(--gelb-warm);
    background-color: #fffef0;
}

/* === INTRO TEXT === */
.intro-text-area {
    width: 100%;
    border: none;
    border-bottom: 1px solid #ccc;
    padding: 5px 0;
    font-family: 'Oswald', sans-serif;
    font-size: 11pt;
    background-color: transparent;
    resize: none;
    overflow: hidden;
    margin-bottom: 20px;
    line-height: 1.6;
}

.intro-text-area:focus {
    outline: none;
    border-bottom: 2px solid var(--gelb-warm);
    background-color: #fffef0;
}

/* === POSITIONEN === */
.positionen-block {
    margin: 10px 0 30px 0;
    border-top: 1px solid #333;
    padding-top: 8px;
}

.position-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 5px 0;
    font-family: 'Oswald', sans-serif;
    font-size: 11pt;
}

.position-row.trennlinie {
    border-top: 1px solid #999;
    margin-top: 8px;
    padding-top: 10px;
}

.position-row.gesamt-row {
    font-weight: 600;
    font-size: 12pt;
    border-top: 2px solid #333;
    margin-top: 5px;
    padding-top: 8px;
}

.position-label {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 8px;
}

.position-betrag {
    flex: 0 0 auto;
    text-align: right;
    min-width: 130px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 4px;
}

.betrag-input {
    border: none;
    border-bottom: 1px solid #ccc;
    padding: 2px 5px;
    font-family: 'Oswald', sans-serif;
    font-size: 11pt;
    text-align: right;
    width: 100px;
    background-color: transparent;
}

.betrag-input:focus {
    outline: none;
    border-bottom: 2px solid var(--gelb-warm);
    background-color: #fffef0;
}

.betrag-anzeige {
    font-family: 'Oswald', sans-serif;
    font-size: 11pt;
}

.position-row.gesamt-row .betrag-anzeige {
    color: var(--anthrazit);
    font-weight: 600;
}

.auftrittsdatum-input {
    border: none;
    border-bottom: 1px solid #ccc;
    padding: 2px 5px;
    font-family: 'Oswald', sans-serif;
    font-size: 11pt;
    background-color: transparent;
    width: 110px;
}

.auftrittsdatum-input:focus {
    outline: none;
    border-bottom: 2px solid var(--gelb-warm);
    background-color: #fffef0;
}

/* Absender Select */
.absender-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23333' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 5px center;
    background-size: 12px;
    padding-right: 22px;
    cursor: pointer;
}

.absender-select:focus {
    outline: none;
    border-bottom: 1px solid var(--gelb-warm);
    background-color: #fffef0;
}

/* Optionale Zeilen (dynamisch) */
.optional-text-input {
    border: none;
    border-bottom: 1px solid #ccc;
    padding: 2px 5px;
    font-family: 'Oswald', sans-serif;
    font-size: 11pt;
    background-color: transparent;
    min-width: 220px;
    flex: 1;
}

.optional-text-input:focus {
    outline: none;
    border-bottom: 2px solid var(--gelb-warm);
    background-color: #fffef0;
}

.btn-add-zeile {
    background: none;
    border: 1px dashed #ccc;
    border-radius: 4px;
    padding: 4px 12px;
    font-family: 'Oswald', sans-serif;
    font-size: 10pt;
    color: #999;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-add-zeile:hover {
    border-color: var(--gelb-warm);
    color: var(--anthrazit);
}

.add-zeile-row {
    padding: 4px 0;
}

.btn-remove-zeile {
    background: none;
    border: none;
    color: #ccc;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0 0 0 8px;
    line-height: 1;
    transition: color 0.2s;
    flex-shrink: 0;
    align-self: center;
}

.btn-remove-zeile:hover {
    color: #f44336;
}

/* === ZAHLUNGSTEXT === */
.zahlungstext {
    margin: 25px 0 30px 0;
    line-height: 1.8;
    font-family: 'Oswald', sans-serif;
    font-size: 11pt;
}

.zahlungsziel-input {
    border: none;
    border-bottom: 1px solid #ccc;
    padding: 2px 3px;
    font-family: 'Oswald', sans-serif;
    font-size: 11pt;
    width: 35px;
    text-align: center;
    background-color: transparent;
}

.zahlungsziel-input:focus {
    outline: none;
    border-bottom: 2px solid var(--gelb-warm);
    background-color: #fffef0;
}

/* === GRUSS & UNTERSCHRIFT === */
.gruss-block {
    margin-top: 30px;
    font-family: 'Oswald', sans-serif;
    font-size: 11pt;
    line-height: 1.6;
}

.gruss-text {
    margin-bottom: 0;
}

.unterschrift-img-rechnung {
    display: block;
    max-width: 180px;
    height: auto;
    margin: 15px 0 0 0;
}

.unterzeichner-name {
    margin-top: 25px;
    font-weight: 600;
}

/* === SUBMIT === */
.submit-section {
    text-align: center;
    margin: 40px 0;
}

.btn-large {
    padding: 15px 50px;
    font-size: 1.2rem;
}

/* === LOADING / SUCCESS === */
#loadingOverlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.7);
    z-index: 9999;
    justify-content: center;
    align-items: center;
}

.spinner {
    border: 8px solid #f3f3f3;
    border-top: 8px solid var(--gelb-warm);
    border-radius: 50%;
    width: 60px;
    height: 60px;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

#successMessage {
    display: none;
    position: fixed;
    top: 90px;
    right: 20px;
    background: #4CAF50;
    color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    z-index: 10000;
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
    .rechnung-vorlage {
        padding: 1.5cm 1cm;
    }

    .radio-group-horizontal {
        flex-direction: column;
        gap: 10px;
    }

    .adresse-zeile {
        flex-direction: column;
        gap: 0;
    }

    .position-betrag {
        min-width: 80px;
    }
}

/* === PRINT === */
@media print {
    .main-nav,
    .page-title,
    .file-picker-section,
    .rechnungstyp-section,
    .submit-section,
    .optional-check {
        display: none !important;
    }

    .rechnung-vorlage {
        box-shadow: none;
        border: none;
        margin: 0;
        padding: 2.5cm 2.5cm 2cm 2.5cm;
    }

    body {
        background-color: white;
    }

    .absender-input,
    .absender-select,
    .empfaenger-input,
    .datum-input-rechnung,
    .rechnung-nr-input,
    .intro-text-area,
    .betrag-input,
    .auftrittsdatum-input,
    .optional-text-input,
    .zahlungsziel-input {
        border-bottom: none !important;
        background-color: transparent !important;
        background-image: none !important;
    }

    .btn-add-zeile,
    .btn-remove-zeile,
    .btn-renr-laden,
    .add-zeile-row {
        display: none !important;
    }
}