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

body {
    font-family: 'Inter', sans-serif;
    background: #f5f7fa;
    color: #2c3e50;
}

/* Login Screen */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-box {
    background: white;
    padding: 3rem;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    width: 100%;
    max-width: 400px;
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-logo {
    width: 80px;
    height: 80px;
    margin-bottom: 1rem;
}

.login-header h1 {
    font-size: 2rem;
    color: #667eea;
    margin-bottom: 0.5rem;
}

.login-header p {
    color: #7f8c8d;
}

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

.login-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #2c3e50;
}

.login-form input {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e0e6ed;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.login-form input:focus {
    outline: none;
    border-color: #667eea;
}

/* Public Registration */
.public-container {
    max-width: 800px;
    margin: 2rem auto;
    padding: 2rem;
    background: white;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.public-header {
    text-align: center;
    margin-bottom: 2rem;
}

.public-logo {
    width: 100px;
    height: 100px;
    margin-bottom: 1rem;
}

.event-details {
    background: #f8f9fa;
    padding: 1.5rem;
    border-radius: 12px;
    margin-bottom: 2rem;
}

.event-details h2 {
    color: #667eea;
    margin-bottom: 1rem;
}

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

.info-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.info-item .material-icons {
    color: #667eea;
    font-size: 20px;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #2c3e50;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e0e6ed;
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: #667eea;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.checkbox-group label {
    display: flex;
    align-items: start;
    gap: 0.5rem;
    font-weight: normal;
    cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    margin-top: 0.25rem;
}

.privacy-notice {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    background: #e8f4fd;
    border-radius: 8px;
    margin-bottom: 1.5rem;
}

.privacy-notice .material-icons {
    color: #3498db;
}

.privacy-notice p {
    font-size: 0.9rem;
    color: #2c3e50;
    line-height: 1.6;
}

.privacy-notice a {
    color: #3498db;
    text-decoration: none;
}

.privacy-notice a:hover {
    text-decoration: underline;
}

/* Buttons */
.btn-primary,
.btn-secondary {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background: #667eea;
    color: white;
    width: 100%;
    justify-content: center;
}

.btn-primary:hover {
    background: #5568d3;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

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

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

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* Navbar */
.navbar {
    background: white;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: #667eea;
}

.nav-logo {
    width: 40px;
    height: 40px;
}

.nav-menu {
    display: flex;
    gap: 0.5rem;
}

.nav-btn {
    padding: 0.75rem 1.5rem;
    border: none;
    background: transparent;
    color: #7f8c8d;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-btn:hover,
.nav-btn.active {
    background: #667eea;
    color: white;
}

/* Main Content */
.main-content {
    padding: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.view-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.view-header h1 {
    font-size: 2rem;
    color: #2c3e50;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stat-card .material-icons {
    font-size: 48px;
    color: #667eea;
}

.stat-info h3 {
    font-size: 2rem;
    color: #2c3e50;
    margin-bottom: 0.25rem;
}

.stat-info p {
    color: #7f8c8d;
    font-size: 0.9rem;
}

/* Search Bar */
.search-bar {
    background: white;
    padding: 1rem;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.search-bar .material-icons {
    color: #7f8c8d;
}

.search-bar input {
    flex: 1;
    border: none;
    font-size: 1rem;
    outline: none;
}

/* Events List */
.events-list {
    display: grid;
    gap: 1.5rem;
}

.event-card {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.event-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.event-card-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 1rem;
}

.event-card-title {
    font-size: 1.5rem;
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.event-type-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    background: #667eea;
    color: white;
}

.event-card-body {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.event-info-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #7f8c8d;
}

.event-info-item .material-icons {
    font-size: 20px;
    color: #667eea;
}

.event-card-actions {
    display: flex;
    gap: 0.5rem;
    padding-top: 1rem;
    border-top: 1px solid #e0e6ed;
}

.icon-btn {
    padding: 0.5rem;
    border: none;
    background: #f8f9fa;
    color: #7f8c8d;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-btn:hover {
    background: #667eea;
    color: white;
}

/* Table */
.table-container {
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    overflow: hidden;
}

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

.data-table thead {
    background: #f8f9fa;
}

.data-table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: #2c3e50;
    border-bottom: 2px solid #e0e6ed;
}

.data-table td {
    padding: 1rem;
    border-bottom: 1px solid #e0e6ed;
}

.data-table tbody tr:hover {
    background: #f8f9fa;
}

.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.status-registered {
    background: #e8f4fd;
    color: #3498db;
}

.status-attended {
    background: #d4edda;
    color: #28a745;
}

/* Messages */
.success-message,
.error-message {
    padding: 1rem;
    border-radius: 8px;
    margin-top: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.success-message {
    background: #d4edda;
    color: #28a745;
}

.error-message {
    background: #f8d7da;
    color: #dc3545;
}

/* Responsive */
@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .nav-menu {
        flex-wrap: wrap;
    }
    
    .nav-btn span {
        display: none;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

/* Modal Styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-content {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    max-width: 700px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid #e0e6ed;
}

.modal-header h2 {
    margin: 0;
    color: #2c3e50;
}

.close-btn {
    background: none;
    border: none;
    font-size: 2rem;
    color: #7f8c8d;
    cursor: pointer;
    padding: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s;
}

.close-btn:hover {
    background: #f8f9fa;
    color: #2c3e50;
}

.modal-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid #e0e6ed;
}

.modal-actions button {
    min-width: 120px;
}

/* Mobile Optimierungen */
@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        padding: 1rem;
        gap: 1rem;
    }
    
    .nav-brand {
        width: 100%;
        justify-content: center;
        font-size: 1.2rem;
    }
    
    .nav-menu {
        width: 100%;
        justify-content: space-around;
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    
    .nav-btn {
        flex-direction: column;
        padding: 0.5rem;
        font-size: 0.75rem;
        min-width: 70px;
    }
    
    .nav-btn .material-icons {
        font-size: 1.5rem;
        margin-right: 0;
        margin-bottom: 0.25rem;
    }
    
    #logout-btn {
        width: 100%;
        justify-content: center;
    }
    
    .main-content {
        padding: 1rem;
        margin-top: 0;
    }
    
    .view-header {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    
    .view-header button {
        width: 100%;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .event-card-actions {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .icon-btn {
        min-width: 44px;
        min-height: 44px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        width: 95%;
        padding: 1rem;
        max-height: 95vh;
    }
    
    .table-container {
        overflow-x: auto;
    }
    
    .data-table {
        font-size: 0.85rem;
    }
    
    .data-table th,
    .data-table td {
        padding: 0.5rem;
        white-space: nowrap;
    }
}

/* Extra kleine Bildschirme (iPhone SE, etc.) */
@media (max-width: 375px) {
    .nav-btn {
        font-size: 0.7rem;
        padding: 0.4rem;
        min-width: 60px;
    }
    
    .nav-btn .material-icons {
        font-size: 1.2rem;
    }
    
    h1 {
        font-size: 1.5rem;
    }
    
    .event-card-title {
        font-size: 1.1rem;
    }
}