body {
    background-color: #f4f6f9;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.card {
    border-radius: 12px;
    border: none;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.card-header {
    background: linear-gradient(135deg, #1976d2 0%, #1565c0 100%);
    color: white;
    border-radius: 12px 12px 0 0 !important;
    padding: 1.25rem 1.5rem;
}

.btn-primary {
    background: linear-gradient(135deg, #1976d2 0%, #1565c0 100%);
    border: none;
    padding: 0.6rem 1.5rem;
    font-weight: 500;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #1565c0 0%, #0d47a1 100%);
}

.form-check {
    margin-bottom: 0.5rem;
    padding-left: 2rem;
}

.form-check-input:checked {
    background-color: #1976d2;
    border-color: #1976d2;
}

.question-block {
    background: #fafbfc;
    border-left: 4px solid #1976d2;
    padding: 1.25rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
}

.question-block h5 {
    color: #1565c0;
    font-weight: 600;
    margin-bottom: 1rem;
}

.progress-indicator {
    display: flex;
    justify-content: space-between;
    margin-bottom: 2rem;
    list-style: none;
    padding: 0;
}

.progress-indicator li {
    flex: 1;
    text-align: center;
    padding: 0.75rem;
    background: #e9ecef;
    color: #6c757d;
    margin: 0 0.25rem;
    border-radius: 8px;
    font-weight: 500;
    font-size: 0.9rem;
    position: relative;
}

.progress-indicator li.active {
    background: linear-gradient(135deg, #1976d2 0%, #1565c0 100%);
    color: white;
}

.progress-indicator li.completed {
    background: #28a745;
    color: white;
}

.country-flag {
    width: 20px;
    height: 15px;
    margin-right: 5px;
}

.file-list-item {
    padding: 0.5rem 0.75rem;
    background: #e3f2fd;
    border-radius: 6px;
    margin-bottom: 0.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.thank-you-container {
    background: white;
    padding: 4rem 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.thank-you-icon {
    font-size: 5rem;
    color: #28a745;
    margin-bottom: 1.5rem;
}