body {
    background: #ffffff;
    min-height: 100vh;
    padding: 0;
    margin: 0;
}

.navbar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.navbar-brand {
    font-weight: bold;
    font-size: 1.5rem;
    color: white !important;
}

.nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    font-weight: 500;
    transition: all 0.3s ease;
}

.nav-link:hover {
    color: white !important;
    transform: translateY(-2px);
}

.nav-link.active {
    color: white !important;
    font-weight: 600;
}

.main-container {
    max-width: 1100px;
    margin: 30px auto;
    background: white;
    border-radius: 15px;
    padding: 40px;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid #e9ecef;
}

h1 {
    color: #667eea;
    text-align: center;
    margin-bottom: 30px;
    font-weight: bold;
}

.answer-item {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.answer-item input[type="radio"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.question-card {
    border-left: 4px solid #667eea;
}

.answer.correct {
    background-color: #d1e7dd !important;
    font-weight: 600;
}

/* Schrittweise Formularanzeige */
.form-step {
    display: none;
    animation: fadeInDown 0.5s ease-in-out;
}

.form-step.visible {
    display: block;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

#submitButton:disabled {
    cursor: not-allowed;
    opacity: 0.5;
}

/* Quiz Styles */
.answer-option {
    padding: 15px;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.answer-option:hover {
    border-color: #667eea;
    background-color: #f8f9fa;
    transform: translateX(5px);
}

.answer-option input:checked + label {
    color: #667eea;
    font-weight: 600;
}

.progress-bar {
    font-size: 16px;
    font-weight: bold;
}

/* Kategorie-Karten */
.category-card {
    transition: transform 0.2s, box-shadow 0.2s;
    border: none;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.stats-card {
    border: none;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: transform 0.2s;
}

.stats-card:hover {
    transform: translateY(-2px);
}

.bg-success-subtle {
    background-color: rgba(25, 135, 84, 0.1);
}

.bg-warning-subtle {
    background-color: rgba(255, 193, 7, 0.1);
}

.bg-danger-subtle {
    background-color: rgba(220, 53, 69, 0.1);
}

.bg-primary-subtle {
    background-color: rgba(13, 110, 253, 0.1);
}

.bg-info-subtle {
    background-color: rgba(13, 202, 240, 0.1);
}

.bg-secondary-subtle {
    background-color: rgba(108, 117, 125, 0.1);
}