/**
 * MateAventura - Problemas y Respuestas
 * Estilos para ecuaciones, opciones múltiples, respuestas de texto
 */

/* Ecuaciones numéricas */
#equation-area {
    background: #f9f9f9;
    padding: 20px;
    border-radius: 15px;
    margin: 20px 0;
}

.equation-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin: 15px 0;
    font-size: 1.3rem;
    flex-wrap: wrap;
}

.eq-text {
    font-weight: bold;
    color: #2c3e50;
    transition: opacity 0.5s ease;
}

.eq-input {
    width: 60px;
    padding: 10px 8px;
    font-size: 1.4rem;
    font-weight: bold;
    text-align: center;
    border: 2px solid #3498db;
    border-radius: 8px;
    background: white;
    color: #2c3e50;
    transition: all 0.2s ease;
    outline: none;
}

.eq-input:hover {
    border-color: #2980b9;
    box-shadow: 0 2px 6px rgba(52, 152, 219, 0.2);
}

.eq-input:focus {
    border-color: #2980b9;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
    background: #f0f8ff;
}

/* Opción múltiple */
.multiple-choice-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin: 15px 0;
}

.choice-btn {
    padding: 15px;
    font-size: 1.1rem;
    font-weight: 600;
    border: 2px solid #ddd;
    border-radius: 12px;
    background: white;
    color: #2c3e50;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 50px;
}

.choice-btn:hover {
    border-color: #3498db;
    background: #f0f8ff;
    transform: translateX(4px);
}

.choice-btn.selected {
    border-color: #27ae60;
    background: #d4edda;
    color: #155724;
    box-shadow: 0 0 0 3px rgba(39, 174, 96, 0.1);
}

.choice-icon {
    font-size: 1.5rem;
    display: inline-block;
}

/* Entrada de texto */
.text-input-container {
    margin: 15px 0;
}

.text-answer-input {
    width: 100%;
    padding: 12px;
    font-size: 1.2rem;
    border: 2px solid #3498db;
    border-radius: 10px;
    background: white;
    color: #2c3e50;
    box-sizing: border-box;
    transition: all 0.2s ease;
    font-family: inherit;
}

.text-answer-input:hover {
    border-color: #2980b9;
    box-shadow: 0 2px 6px rgba(52, 152, 219, 0.2);
}

.text-answer-input:focus {
    border-color: #2980b9;
    background: #f0f8ff;
    outline: none;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}