/* Base styles */
body {
    background-color: #f8f9fa;
    margin: 0;
    padding: 0;
}

.navbar {
    margin-bottom: 1rem;
    box-shadow: 0 2px 4px rgba(0,0,0,.1);
}

.container {
    max-width: 100%;
    padding: 0.5rem;
}

.card {
    box-shadow: 0 1px 3px rgba(0,0,0,.1);
    border: none;
    margin-bottom: 1.5rem;
}

.card-header {
    background-color: #fff;
    border-bottom: 1px solid rgba(0,0,0,.1);
}

.card-body {
    padding: 1rem;
}

/* Form elements */
.form-control {
    font-size: 16px; /* Prevent zoom on mobile */
    padding: 0.75rem;
}

.form-select {
    font-size: 16px;
    padding: 0.75rem;
}

.btn {
    padding: 0.75rem 1.5rem;
    font-size: 16px;
}

/* Preview container */
#previewContainer {
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

#previewContainer img {
    max-width: 100%;
    height: auto;
}

/* Question cards */
.question-card {
    transition: transform 0.2s;
}

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

/* Table responsive */
.table-responsive {
    margin: 0;
    width: 100%;
}

.table th {
    border-top: none;
    background-color: #f8f9fa;
    font-weight: 600;
}

.table td {
    max-width: 150px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Badge */
.badge {
    font-weight: 500;
    padding: 0.5em 0.75em;
}

/* Mobile first media queries */
@media (max-width: 768px) {
    .navbar-brand {
        font-size: 1.2rem;
    }
    
    .card-title {
        font-size: 1.1rem;
    }
    
    .btn {
        padding: 0.5rem 0.75rem;
    }
    
    .table-responsive {
        margin: 0 -1rem;
        padding: 0 1rem;
        width: calc(100% + 2rem);
    }
}

/* Desktop adjustments */
@media (min-width: 769px) {
    .container {
        padding: 1rem;
    }
    
    .card {
        margin-bottom: 1.5rem;
    }
}

/* Tlačítka */
.btn-group .btn {
    padding: 0.25rem 0.5rem;
}

.btn-group .btn i {
    width: 1rem;
    text-align: center;
}