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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    overflow: hidden;
}

.header {
    background: linear-gradient(135deg, #2c3e50, #3498db);
    color: white;
    padding: 30px;
    text-align: center;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.dark-mode-btn {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 12px 15px;
    border-radius: 50px;
    cursor: pointer;
    font-size: 18px;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    min-width: 50px;
}

.dark-mode-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    transform: scale(1.05);
}

.header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.header p {
    font-size: 1.1rem;
    opacity: 0.9;
}

.form-container {
    padding: 40px;
}

.success-message {
    background: #2ecc71;
    color: white;
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.form-section {
    margin-bottom: 30px;
    background: #f8f9fa;
    padding: 25px;
    border-radius: 10px;
    border-left: 4px solid #3498db;
}

.form-section h3 {
    color: #2c3e50;
    margin-bottom: 20px;
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 600;
    margin-bottom: 8px;
    color: #2c3e50;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.days-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.days-table th {
    background: #34495e;
    color: white;
    padding: 15px;
    text-align: left;
    font-weight: 600;
}

.days-table td {
    padding: 14px 18px;
    border-bottom: 1px solid #eee;
    height: 50px;
    vertical-align: top;
    font-size: 15px;
    line-height: 1.4;
}

.days-table tr:nth-child(even) {
    background: #f8f9fa;
}

.days-table tr:hover {
    background: #e3f2fd;
}

.days-table input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 15px;
    height: 38px;
    box-sizing: border-box;
}

.button-group {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 30px;
    flex-wrap: wrap;
}

.btn {
    padding: 15px 30px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.3s ease;
    text-decoration: none;
    color: inherit;
}

.btn-primary {
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #2980b9, #3498db);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.3);
}

.btn-success {
    background: linear-gradient(135deg, #27ae60, #229954);
    color: white;
}

.btn-success:hover {
    background: linear-gradient(135deg, #229954, #27ae60);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(39, 174, 96, 0.3);
}

.btn-danger {
    background: linear-gradient(135deg, #e74c3c, #c0392b);
    color: white;
}

.btn-danger:hover {
    background: linear-gradient(135deg, #c0392b, #e74c3c);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(231, 76, 60, 0.3);
}

.btn-orange {
    background: linear-gradient(135deg, #f39c12, #e67e22);
    color: white;
}

.btn-orange:hover {
    background: linear-gradient(135deg, #e67e22, #f39c12);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(243, 156, 18, 0.3);
}

.weekday-label {
    font-weight: 600;
    color: #2c3e50;
    font-size: 15px !important;
}

.auto-fill {
    background: #f39c12;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    margin-bottom: 20px;
}

.auto-fill:hover {
    background: #e67e22;
}

/* PDF Styles */
.pdf-body {
    font-family: Arial, sans-serif;
    font-size: 12px;
    margin: 20px;
}

.pdf-header {
    text-align: center;
    margin-bottom: 30px;
}

.info-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

.info-table td {
    padding: 5px;
    border: 1px solid #ccc;
}

.pdf-days-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

.pdf-days-table th,
.pdf-days-table td {
    padding: 8px;
    border: 1px solid #000;
    text-align: left;
}

.pdf-days-table th {
    background-color: #f0f0f0;
}

.signature {
    margin-top: 50px;
}

.signature-box {
    display: inline-block;
    width: 200px;
    text-align: center;
    margin: 0 50px;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .header h1 {
        font-size: 1.8rem;
    }
    
    .form-container {
        padding: 20px;
    }
    
    .button-group {
        flex-direction: column;
    }
    
    .days-table {
        font-size: 0.9rem;
    }
    
    .days-table th,
    .days-table td {
        padding: 8px;
    }
}

/* Dark Mode Styles - Sehr lesbares Farbschema */
:root {
    --bg-color: #ffffff;
    --text-color: #2c3e50;
    --container-bg: #ffffff;
    --border-color: #e1e8ed;
    --input-bg: #ffffff;
    --input-border: #bdc3c7;
    --input-focus-border: #3498db;
    --table-header-bg: #34495e;
    --table-row-even: #f8f9fa;
    --shadow: rgba(0,0,0,0.1);
    --success-bg: #2ecc71;
    --form-section-bg: #ffffff;
}

/* Dark Mode Variablen - Heller für besseren Ausdruck */
body.dark-mode {
    --bg-color: #2a2a2a;
    --text-color: #f0f0f0;
    --container-bg: #3a3a3a;
    --border-color: #606060;
    --input-bg: #4a4a4a;
    --input-border: #707070;
    --input-focus-border: #64b5f6;
    --table-header-bg: #4a5568;
    --table-row-even: #454545;
    --shadow: rgba(0,0,0,0.3);
    --success-bg: #5cb85c;
    --form-section-bg: #3a3a3a;
}

/* Basis-Styles mit CSS-Variablen */
body {
    background: var(--bg-color);
    color: var(--text-color);
}

body.dark-mode {
    background: linear-gradient(135deg, #2a2a2a 0%, #3a3a3a 100%);
}

.container {
    background: var(--container-bg);
    box-shadow: 0 10px 30px var(--shadow);
}

.form-section {
    background: var(--form-section-bg);
    border: 2px solid var(--border-color);
}

.form-section h3 {
    color: var(--text-color);
}

input, select, textarea {
    background: var(--input-bg) !important;
    border: 2px solid var(--input-border) !important;
    color: var(--text-color) !important;
}

input:focus, select:focus, textarea:focus {
    border-color: var(--input-focus-border) !important;
    box-shadow: 0 0 0 3px rgba(100, 181, 246, 0.2) !important;
}

.days-table {
    background: var(--container-bg);
    border: 1px solid var(--border-color);
}

.days-table th {
    background-color: var(--table-header-bg) !important;
    color: #ffffff !important;
    border: 1px solid var(--border-color);
}

.days-table td {
    background-color: var(--container-bg);
    border: 1px solid var(--border-color);
    color: var(--text-color);
}

.days-table tr:nth-child(even) td {
    background-color: var(--table-row-even) !important;
}

.success-message {
    background: var(--success-bg);
}

label {
    color: var(--text-color);
}

/* Dark Mode Labels und Überschriften weiß */
body.dark-mode label,
body.dark-mode .form-section h3,
body.dark-mode h1,
body.dark-mode h2,
body.dark-mode h3 {
    color: white !important;
}

.weekday-label {
    font-weight: bold;
    color: var(--text-color) !important;
}

/* Dark Mode Header Anpassungen */
body.dark-mode .header {
    background: linear-gradient(135deg, #1a1a2e, #16213e);
}

/* Responsive Design für Dark Mode Button */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .dark-mode-btn {
        position: absolute;
        top: 15px;
        right: 15px;
    }
}