body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8f9fa;
    margin: 0;
    padding: 0;
    padding-top: 80px; /* Platz für die fixe Navigationsleiste */
    color: #333;
}

h2 {
    color: #333;
}

.login-text{
	margin: 20px;
}

form {
    background: #fff;
    padding: 30px;
    margin: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid #e9ecef;
}

label, input {
    display: block;
    margin-bottom: 10px;
}

input[type="text"], input[type="password"] {
    width: 100%;
    padding: 12px 16px;
    margin: 8px 0;
    box-sizing: border-box;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 16px;
    transition: all 0.2s ease;
}

input[type="text"]:focus, input[type="password"]:focus {
    outline: none;
    border-color: #007bff;
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

input[type="submit"] {
    background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.2s ease;
    box-shadow: 0 2px 8px rgba(40, 167, 69, 0.3);
}

input[type="submit"]:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.4);
}

input[type="submit"]:active {
    transform: translateY(0);
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid #e9ecef;
}

table, th, td {
    border: none;
}

th, td {
    padding: 18px 20px;
    text-align: left;
}

th {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    color: #495057;
    font-weight: 600;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

td {
    border-bottom: 1px solid #f1f3f4;
    vertical-align: top;
}

tr:hover {
    background-color: #f8f9fa;
}

.upload-form {
    display: inline-block;
    margin-top: 10px;
}

.popup, .freigabe-popup {
    display: none;
    position: fixed;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;
    padding: 20px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
    z-index: 1000;
}

.popup button, .freigabe-popup button {
    display: block;
    margin: 10px auto;
    padding: 10px 20px;
}

.overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 999;
}

/* Spinner-Stile */
.spinner {
    border: 8px solid #f3f3f3; /* Light grey */
    border-top: 8px solid #3498db; /* Blue */
    border-radius: 50%;
    width: 60px;
    height: 60px;
    animation: spin 2s linear infinite;
}

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

/* Overlay-Stile für den Spinner */
.spinner-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    display: flex;
    justify-content: center;
    align-items: center;
}



/* Nachricht unter dem Spinner */
.spinner-message {
    margin-top: 10px;
    color: white;
    font-size: 16px;
    text-align: center;
}

.logout-button {
    padding: 10px 20px;
    background: linear-gradient(135deg, #6c757d 0%, #495057 100%);
    color: white;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    margin-left: 10px;
    transition: all 0.2s ease;
    box-shadow: 0 2px 8px rgba(108, 117, 125, 0.3);
}

.logout-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(108, 117, 125, 0.4);
}

.logout-button:active {
    transform: translateY(0);
}

/* Spinner und Overlay Styles */
.spinner-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 5px solid #f3f3f3;
    border-top: 5px solid #007bff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
}

.spinner-message {
    color: white;
    text-align: center;
    max-width: 600px;
    padding: 20px;
}

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

.freigabe-spinner-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

/* Stand-Information Styling */
.stand-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: white;
    margin: 0 20px;
}

.stand-number {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 4px;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.aussteller-name {
    font-size: 14px;
    opacity: 0.9;
    text-align: center;
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-weight: 500;
}

/* Welcome Text Styling */
.welcome-text {
    text-align: left;
    margin: 20px;
    padding: 30px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid #e9ecef;
}

.welcome-text h2 {
    color: #495057;
    margin-bottom: 20px;
    font-size: 28px;
    font-weight: 600;
}

.welcome-text p {
    color: #6c757d;
    font-size: 16px;
    line-height: 1.6;
    margin: 0;
}

/* Upload Form Styling */
.upload-form {
    display: inline-block;
    margin-top: 10px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
    border: 2px dashed #dee2e6;
    text-align: center;
    transition: all 0.2s ease;
}

.upload-form:hover {
    border-color: #007bff;
    background: #f1f8ff;
}

.upload-form input[type="file"] {
    padding: 10px;
    border: 2px solid #e9ecef;
    border-radius: 6px;
    background: white;
    cursor: pointer;
    transition: all 0.2s ease;
}

.upload-form input[type="file"]:hover {
    border-color: #007bff;
}

/* Status Badges */
.success {
    color: #155724;
    background-color: #d4edda;
    border: 1px solid #c3e6cb;
    padding: 10px 15px;
    border-radius: 6px;
    margin: 10px 0;
    font-weight: 500;
}

.warning {
    color: #856404;
    background-color: #fff3cd;
    border: 1px solid #ffeaa7;
    padding: 10px 15px;
    border-radius: 6px;
    margin: 10px 0;
    font-weight: 500;
}

.error {
    color: #721c24;
    background-color: #f8d7da;
    border: 1px solid #f5c6cb;
    padding: 10px 15px;
    border-radius: 6px;
    margin: 10px 0;
    font-weight: 500;
}

/* Blank Info Styling */
.blank-info {
    color: #6c757d;
    background-color: #f8f9fa;
    border: 1px solid #dee2e6;
    padding: 15px;
    border-radius: 6px;
    margin: 10px 0;
    font-style: italic;
    text-align: center;
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, #0056b3 0%, #007bff 100%);
    color: white;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.logo {
    height: 45px;
    filter: brightness(0) invert(1);
    transition: transform 0.2s ease;
}

.logo:hover {
    transform: scale(1.05);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 15px;
}

.nav-links a {
    color: white;
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 6px;
    transition: all 0.2s ease;
    font-weight: 500;
}

.nav-links a:hover {
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-1px);
}

.nav-links a:active {
    transform: translateY(0);
}

.content {
    display: flex;
    align-items: center;
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.centered-image {
    max-width: 50%;
    padding: 40px;
    text-align: center;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid #e9ecef;
    margin: 20px;
}

.standbau_img{
	max-width: 100%;
}

.beispiel{
	max-width: 50%;
    height: auto;
}

.druckflaechen {
    margin: 40px;
    padding: 30px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid #e9ecef;
}

.delete-button {
    background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    cursor: pointer;
    margin-top: 10px;
    font-weight: 600;
    transition: all 0.2s ease;
    box-shadow: 0 2px 8px rgba(220, 53, 69, 0.3);
}

.delete-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(220, 53, 69, 0.4);
}

.delete-button:active {
    transform: translateY(0);
}

.freigabe-button {
    background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    cursor: pointer;
    margin-top: 10px;
    font-weight: 600;
    transition: all 0.2s ease;
    box-shadow: 0 2px 8px rgba(40, 167, 69, 0.3);
}

.freigabe-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.4);
}

.freigabe-button:active {
    transform: translateY(0);
}

.download-button {
    background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    cursor: pointer;
    margin-top: 10px;
    text-decoration: none;
    display: inline-block;
    font-weight: 600;
    transition: all 0.2s ease;
    box-shadow: 0 2px 8px rgba(0, 123, 255, 0.3);
}

.download-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.4);
}

.download-button:active {
    transform: translateY(0);
}

.error-message {
    color: red;
    font-weight: bold;
    margin-top: 10px;
}