/* Reset und Basis-Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #3498db;
    --secondary-color: #2c3e50;
    --success-color: #27ae60;
    --danger-color: #e74c3c;
    --warning-color: #f39c12;
    --light-bg: #f8f9fa;
    --border-color: #dee2e6;
    --text-color: #333;
    --text-light: #666;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--light-bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

/* Header */
.main-header {
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--secondary-color);
    font-weight: bold;
    font-size: 1.5rem;
}

.logo-img {
    height: 50px;
    width: auto;
    max-width: 200px;
}

.logo-text {
    font-size: 1.5rem;
}

.main-nav {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.main-nav a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s;
    padding: 0.5rem 0;
}

.main-nav a:hover {
    color: var(--primary-color);
}

.logout-btn {
    color: var(--danger-color) !important;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    gap: 4px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    transition: all 0.3s;
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 2rem 0;
}

/* Footer */
.main-footer {
    background-color: var(--secondary-color);
    color: #fff;
    padding: 2rem 0;
    margin-top: auto;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.footer-section h3 {
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: #fff;
    text-decoration: none;
    opacity: 0.9;
    transition: opacity 0.3s;
}

.footer-section a:hover {
    opacity: 1;
    text-decoration: underline;
}

/* Formulare */
.form-container {
    max-width: 1120px;
    margin: 0 auto;
    background: #fff;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-color);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="date"],
.form-group input[type="time"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s;
    text-align: center;
}

.btn-primary {
    background-color: var(--primary-color);
    color: #fff;
}

.btn-primary:hover {
    background-color: #2980b9;
}

.btn-success {
    background-color: var(--success-color);
    color: #fff;
}

.btn-success:hover {
    background-color: #229954;
}

.btn-danger {
    background-color: var(--danger-color);
    color: #fff;
}

.btn-danger:hover {
    background-color: #c0392b;
}

.btn-secondary {
    background-color: #95a5a6;
    color: #fff;
}

.btn-secondary:hover {
    background-color: #7f8c8d;
}

.btn-block {
    width: 100%;
    display: block;
}

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1rem;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-info {
    background-color: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

/* Audio Recorder */
.recorder-container {
    background: #fff;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
}

.recorder-controls {
    display: flex;
    gap: 1rem;
    justify-content: center;
    align-items: center;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.recorder-status {
    text-align: center;
    margin: 1rem 0;
    font-weight: 500;
}

.recorder-status.recording {
    color: var(--danger-color);
}

.recorder-status.idle {
    color: var(--text-light);
}

.audio-preview {
    margin: 1rem 0;
    text-align: center;
}

.audio-preview audio {
    width: 100%;
    max-width: 500px;
}

/* Dashboard */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.card {
    background: #fff;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.card h3 {
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

/* Tabelle */
.table-container {
    background: #fff;
    border-radius: 8px;
    overflow-x: auto;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

table {
    width: 100%;
    border-collapse: collapse;
}

table th,
table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

table th {
    background-color: var(--light-bg);
    font-weight: 600;
    color: var(--secondary-color);
}

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

/* Wartungsmodus */
.maintenance-box {
    max-width: 500px;
    margin: 5rem auto;
    background: #fff;
    padding: 3rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    text-align: center;
}

.maintenance-box h1 {
    color: var(--danger-color);
    margin-bottom: 1rem;
}

.contact-info {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.contact-info a {
    color: var(--primary-color);
    text-decoration: none;
}

/* Responsive */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 1rem;
        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    }
    
    .main-nav.active {
        display: flex;
    }
    
    .main-nav a {
        padding: 0.75rem 0;
        border-bottom: 1px solid var(--border-color);
    }
    
    .form-container {
        padding: 1.5rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

/* Musik-Auswahl Kacheln */
.music-selection {
    margin: 2rem 0;
}

.music-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.music-tile {
    background: #fff;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
}

.music-tile:hover {
    border-color: var(--primary-color);
    box-shadow: 0 2px 8px rgba(52, 152, 219, 0.2);
}

.music-tile.selected {
    border-color: var(--primary-color);
    background-color: #e7f3ff;
    box-shadow: 0 2px 8px rgba(52, 152, 219, 0.3);
}

.music-tile.selected::after {
    content: '✓';
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: var(--primary-color);
    color: white;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.9rem;
}

.music-tile input[type="radio"] {
    display: none;
}

.music-tile-label {
    display: block;
    cursor: pointer;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.music-play-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    font-size: 1.2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s;
    margin: 0.5rem 0;
}

.music-play-btn:hover {
    background: #2980b9;
}

.music-play-btn.playing {
    background: var(--success-color);
}

.music-play-btn.playing::before {
    content: '⏸';
}

.music-play-btn:not(.playing)::before {
    content: '▶';
}

.music-preview {
    margin-top: 0.5rem;
    display: none;
}

.music-preview.active {
    display: block;
}

.music-preview audio {
    width: 100%;
    margin-top: 0.5rem;
}

/* Disabled Zeitfelder */
.form-group input[type="time"]:disabled {
    background-color: #e9ecef;
    color: #6c757d;
    cursor: not-allowed;
    opacity: 0.6;
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .main-content {
        padding: 1rem 0;
    }
    
    .form-container {
        padding: 1rem;
    }
    
    .music-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 0.75rem;
    }
}