/* Print styles */
@media print {
    .ebc-submit-container,
    .ebc-loading,
    .ebc-retry-container,
    .ebc-share-container {
        display: none;
    }
    
    .ebc-question-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #000;
        margin-bottom: 20px;
    }
    
    .ebc-results {
        box-shadow: none;
        border: 1px solid #000;
    }
}

/**
 * Estilos para el Examen del Manual del Buen Conductor
 * Diseño moderno tipo Material Design con responsividad completa
 */

/* Reset y variables CSS */
:root {
    --ebc-primary: #31a6d2;
    --ebc-primary-dark: #2891b8;
    --ebc-success: #4caf50;
    --ebc-error: #f44336;
    --ebc-warning: #ff9800;
    --ebc-background: #f5f5f5;
    --ebc-card-background: #ffffff;
    --ebc-text-primary: #212121;
    --ebc-text-secondary: #757575;
    --ebc-border: #e0e0e0;
    --ebc-shadow: 0 2px 4px rgba(0,0,0,0.1);
    --ebc-shadow-hover: 0 4px 8px rgba(0,0,0,0.15);
    --ebc-border-radius: 8px;
    --ebc-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Contenedor principal */
.ebc-quiz-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.5;
    color: var(--ebc-text-primary);
}

/* Formulario del quiz */
.ebc-quiz-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* Tarjetas de preguntas */
.ebc-question-card {
    background: var(--ebc-card-background);
    border-radius: var(--ebc-border-radius);
    padding: 24px;
    box-shadow: var(--ebc-shadow);
    transition: var(--ebc-transition);
    border: 1px solid var(--ebc-border);
    position: relative;
}

.ebc-question-card:hover {
    box-shadow: var(--ebc-shadow-hover);
}

/* Cabecera de la pregunta */
.ebc-question-header {
    margin-bottom: 16px;
}

.ebc-question-number {
    display: inline-block;
    background: var(--ebc-primary);
    color: white;
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Contenido de la pregunta */
.ebc-question-content {
    margin-bottom: 20px;
}

.ebc-question-text {
    font-size: 18px;
    font-weight: 500;
    line-height: 1.6;
    margin-bottom: 16px;
    color: var(--ebc-text-primary);
}

.ebc-question-image {
    margin-top: 16px;
    text-align: center;
}

.ebc-question-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--ebc-border-radius);
    box-shadow: var(--ebc-shadow);
    border: 1px solid var(--ebc-border);
}

/* Contenedor de opciones */
.ebc-options-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* Opciones individuales */
.ebc-option {
    position: relative;
}

.ebc-option-label {
    display: flex;
    align-items: flex-start;
    padding: 16px;
    border: 2px solid var(--ebc-border);
    border-radius: var(--ebc-border-radius);
    cursor: pointer;
    transition: var(--ebc-transition);
    background: var(--ebc-card-background);
    gap: 12px;
}

.ebc-option-label:hover {
    border-color: var(--ebc-primary);
    background: rgba(25, 118, 210, 0.04);
}

.ebc-option-label:focus-within {
    outline: 2px solid var(--ebc-primary);
    outline-offset: 2px;
}

/* Radio button personalizado */
.ebc-radio {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.ebc-radio-custom {
    width: 20px;
    height: 20px;
    border: 2px solid var(--ebc-border);
    border-radius: 50%;
    position: relative;
    flex-shrink: 0;
    margin-top: 2px;
    transition: var(--ebc-transition);
}

.ebc-radio-custom::after {
    content: '';
    width: 10px;
    height: 10px;
    background: var(--ebc-primary);
    border-radius: 50%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    transition: var(--ebc-transition);
}

.ebc-radio:checked + .ebc-radio-custom {
    border-color: var(--ebc-primary);
}

.ebc-radio:checked + .ebc-radio-custom::after {
    transform: translate(-50%, -50%) scale(1);
}

.ebc-radio:checked ~ .ebc-option-content {
    color: var(--ebc-primary);
}

/* Contenido de la opción */
.ebc-option-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.ebc-option-text {
    font-size: 16px;
    font-weight: 400;
    line-height: 1.5;
}

.ebc-option-image {
    margin-top: 8px;
}

.ebc-option-image img {
    max-width: 200px;
    height: auto;
    border-radius: 4px;
    border: 1px solid var(--ebc-border);
}

/* Contenedor del botón de envío */
.ebc-submit-container {
    text-align: center;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--ebc-border);
}

/* Botón de envío */
.ebc-submit-button {
    background: var(--ebc-primary);
    color: white;
    border: none;
    padding: 16px 32px;
    border-radius: var(--ebc-border-radius);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--ebc-transition);
    box-shadow: var(--ebc-shadow);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    min-width: 200px;
}

.ebc-submit-button:hover {
    background: var(--ebc-primary-dark);
    box-shadow: var(--ebc-shadow-hover);
    transform: translateY(-1px);
}

.ebc-submit-button:active {
    transform: translateY(0);
}

.ebc-submit-button:disabled {
    background: var(--ebc-text-secondary);
    cursor: not-allowed;
    transform: none;
}

/* Loading spinner */
.ebc-loading {
    text-align: center;
    padding: 40px 20px;
    background: var(--ebc-card-background);
    border-radius: var(--ebc-border-radius);
    box-shadow: var(--ebc-shadow);
}

.ebc-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--ebc-border);
    border-top: 4px solid var(--ebc-primary);
    border-radius: 50%;
    animation: ebc-spin 1s linear infinite;
    margin: 0 auto 16px;
}

@keyframes ebc-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Resultados */
.ebc-results {
    background: var(--ebc-card-background);
    border-radius: var(--ebc-border-radius);
    padding: 32px;
    box-shadow: var(--ebc-shadow);
    margin-top: 24px;
}

.ebc-results-header {
    text-align: center;
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--ebc-border);
}

/* Etiqueta de resultado principal */
.ebc-result-label {
    font-size: 28px;
    font-weight: bold;
    color: var(--ebc-text-primary);
    margin-bottom: 8px;
}

.ebc-score-display {
    font-size: 48px;
    font-weight: 700;
    color: var(--ebc-primary);
    margin-bottom: 8px;
}

.ebc-percentage {
    font-size: 24px;
    color: var(--ebc-text-secondary);
    margin-bottom: 16px;
}

.ebc-progress-bar {
    width: 100%;
    height: 12px;
    background: var(--ebc-border);
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 16px;
}

.ebc-progress-fill {
    height: 100%;
    background: var(--ebc-success);
    transition: width 0.8s ease-out;
    border-radius: 6px;
}

.ebc-status {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--ebc-border-radius);
    font-size: 18px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 20px;
}

.ebc-status.approved {
    background: rgba(76, 175, 80, 0.1);
    color: var(--ebc-success);
    border: 2px solid var(--ebc-success);
}

.ebc-status.failed {
    background: rgba(244, 67, 54, 0.1);
    color: var(--ebc-error);
    border: 2px solid var(--ebc-error);
}

/* Disclaimer con estilos mejorados */
.ebc-disclaimer {
    background: #f8f9fa;
    border-left: 4px solid #3498db;
    padding: 15px 20px;
    margin: 20px 0 0 0;
    border-radius: 0 8px 8px 0;
    font-size: 16px;
    line-height: 1.6;
    color: #2c3e50;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    text-align: center;
}

.ebc-status.approved + .ebc-disclaimer {
    border-left-color: #27ae60;
    background: #d5f4e6;
}

.ebc-status.failed + .ebc-disclaimer {
    border-left-color: #e74c3c;
    background: #fadbd8;
}

/* Contenedor del botón de compartir */
.ebc-share-container {
    text-align: center;
    margin-top: 20px;
    padding-top: 16px;
}

/* Botón de compartir WhatsApp */
.ebc-share-button {
    background: #25d366; /* Color oficial de WhatsApp */
    color: white;
    border: none;
    padding: 14px 28px;
    border-radius: var(--ebc-border-radius);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--ebc-transition);
    box-shadow: var(--ebc-shadow);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    min-width: 220px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.ebc-share-button:hover {
    background: #128c7e; /* Color hover de WhatsApp */
    box-shadow: var(--ebc-shadow-hover);
    transform: translateY(-1px);
}

.ebc-share-button:active {
    transform: translateY(0);
}

.ebc-whatsapp-icon {
    font-size: 18px;
    animation: ebc-pulse 2s infinite;
}

@keyframes ebc-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* Estados del botón de compartir */
.ebc-share-button:disabled {
    background: var(--ebc-text-secondary);
    cursor: not-allowed;
    transform: none;
}

.ebc-share-button:disabled .ebc-whatsapp-icon {
    animation: none;
}

/* Contenedor del botón de repetir */
.ebc-retry-container {
    text-align: center;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--ebc-border);
}

/* Botón de repetir examen */
.ebc-retry-button {
    background: var(--ebc-primary);
    color: white;
    border: none;
    padding: 16px 32px;
    border-radius: var(--ebc-border-radius);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--ebc-transition);
    box-shadow: var(--ebc-shadow);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    min-width: 250px;
}

.ebc-retry-button:hover {
    background: var(--ebc-primary-dark);
    box-shadow: var(--ebc-shadow-hover);
    transform: translateY(-1px);
}

.ebc-retry-button:active {
    transform: translateY(0);
}

/* Estados del botón */
.ebc-retry-button:disabled {
    background: var(--ebc-text-secondary);
    cursor: not-allowed;
    transform: none;
}

/* Lista de respuestas */
.ebc-answer-list {
    margin-top: 32px;
}

.ebc-answer-item {
    display: flex;
    gap: 16px;
    padding: 16px;
    margin-bottom: 16px;
    border-radius: var(--ebc-border-radius);
    border: 1px solid var(--ebc-border);
    background: var(--ebc-card-background);
}

.ebc-answer-item.correct {
    border-color: var(--ebc-success);
    background: rgba(76, 175, 80, 0.04);
}

.ebc-answer-item.incorrect {
    border-color: var(--ebc-error);
    background: rgba(244, 67, 54, 0.04);
}

.ebc-answer-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    margin-top: 2px;
}

.ebc-answer-icon.correct {
    background: var(--ebc-success);
    color: white;
}

.ebc-answer-icon.incorrect {
    background: var(--ebc-error);
    color: white;
}

.ebc-answer-content {
    flex: 1;
}

.ebc-question-number-result {
    font-size: 14px;
    font-weight: 600;
    color: var(--ebc-text-secondary);
    margin-bottom: 4px;
}

.ebc-question-text-result {
    font-size: 16px;
    margin-bottom: 8px;
    color: var(--ebc-text-primary);
}

.ebc-user-answer {
    font-size: 14px;
    margin-bottom: 4px;
}

.ebc-user-answer.correct {
    color: var(--ebc-success);
}

.ebc-user-answer.incorrect {
    color: var(--ebc-error);
}

.ebc-correct-answer {
    font-size: 14px;
    color: var(--ebc-success);
    font-weight: 500;
}

/* Mensajes de error */
.ebc-error {
    background: rgba(244, 67, 54, 0.1);
    color: var(--ebc-error);
    padding: 16px;
    border-radius: var(--ebc-border-radius);
    border: 1px solid var(--ebc-error);
    text-align: center;
    font-weight: 500;
}

/* Responsividad */
@media (max-width: 768px) {
    .ebc-quiz-container {
        padding: 16px;
    }
    
    .ebc-question-card {
        padding: 20px;
    }
    
    .ebc-question-text {
        font-size: 16px;
    }
    
    .ebc-option-label {
        padding: 12px;
    }
    
    .ebc-option-text {
        font-size: 15px;
    }
    
    .ebc-submit-button {
        width: auto;
        max-width: 280px;
        margin: 0 auto;
        padding: 12px 24px;
        font-size: 14px;
        min-width: 200px;
    }
    
    .ebc-share-button {
        width: auto;
        max-width: 280px;
        margin: 0 auto;
        padding: 12px 20px;
        font-size: 14px;
        min-width: 200px;
    }
    
    .ebc-retry-button {
        width: auto;
        max-width: 280px;
        margin: 0 auto;
        padding: 12px 24px;
        font-size: 14px;
        min-width: 200px;
    }
    
    .ebc-result-label {
        font-size: 24px;
    }
    
    .ebc-score-display {
        font-size: 36px;
    }
    
    .ebc-percentage {
        font-size: 20px;
    }
    
    .ebc-results {
        padding: 20px;
        margin-top: 16px;
    }
    
    .ebc-answer-item {
        flex-direction: column;
        gap: 8px;
        padding: 12px;
        margin-bottom: 12px;
    }
    
    .ebc-answer-icon {
        align-self: flex-start;
    }
    
    /* Reducir espaciado de contenedores en móvil */
    .ebc-submit-container {
        margin-top: 24px;
        padding-top: 20px;
    }
    
    .ebc-retry-container {
        margin-top: 24px;
        padding-top: 20px;
    }
}

@media (max-width: 480px) {
    .ebc-quiz-container {
        padding: 12px;
    }
    
    .ebc-question-card {
        padding: 16px;
    }
    
    .ebc-question-number {
        font-size: 12px;
        padding: 4px 8px;
    }
    
    .ebc-question-text {
        font-size: 15px;
    }
    
    .ebc-option-image img {
        max-width: 150px;
    }
    
    .ebc-submit-button {
        width: auto;
        max-width: 250px;
        margin: 0 auto;
        padding: 10px 20px;
        font-size: 13px;
        font-weight: 500;
        letter-spacing: 0.3px;
        min-width: 180px;
    }
    
    .ebc-retry-button {
        width: auto;
        max-width: 250px;
        margin: 0 auto;
        padding: 10px 20px;
        font-size: 13px;
        font-weight: 500;
        letter-spacing: 0.3px;
        min-width: 180px;
    }
    
    .ebc-share-button {
        width: auto;
        max-width: 250px;
        margin: 0 auto;
        padding: 10px 20px;
        font-size: 13px;
        font-weight: 500;
        letter-spacing: 0.3px;
        min-width: 180px;
    }
    
    .ebc-result-label {
        font-size: 20px;
    }
    
    .ebc-score-display {
        font-size: 28px;
    }
    
    .ebc-percentage {
        font-size: 18px;
    }
    
    .ebc-results {
        padding: 16px;
        margin-top: 12px;
    }
    
    .ebc-results-header {
        margin-bottom: 20px;
        padding-bottom: 16px;
    }
    
    /* Reducir aún más el espaciado en pantallas muy pequeñas */
    .ebc-submit-container {
        margin-top: 24px;
        padding-top: 16px;
    }
    
    .ebc-retry-container {
        margin-top: 24px;
        padding-top: 16px;
    }
    
    /* Hacer que los botones respiren mejor en pantallas pequeñas */
    .ebc-submit-button,
    .ebc-retry-button {
        max-height: 44px; /* Altura táctil recomendada pero no excesiva */
        line-height: 1.2;
    }
}

/* Animaciones de entrada */
@keyframes ebc-fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.ebc-question-card {
    animation: ebc-fadeInUp 0.5s ease-out;
}

.ebc-results {
    animation: ebc-fadeInUp 0.6s ease-out;
}

/* Estados de focus para accesibilidad */
.ebc-submit-button:focus {
    outline: 2px solid var(--ebc-primary);
    outline-offset: 2px;
}

.ebc-radio:focus + .ebc-radio-custom {
    outline: 2px solid var(--ebc-primary);
    outline-offset: 2px;
}

/* Estilos para confeti */
#ebc-confetti-container {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    height: 100% !important;
    pointer-events: none !important;
    z-index: 9999 !important;
    overflow: hidden !important;
}

.ebc-confetti-piece {
    position: absolute;
    pointer-events: none;
    z-index: 10000;
    opacity: 0.9;
    will-change: transform, opacity;
}

/* Mejoras visuales adicionales */
.ebc-question-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--ebc-primary), var(--ebc-primary-dark));
    border-radius: var(--ebc-border-radius) var(--ebc-border-radius) 0 0;
    opacity: 0;
    transition: var(--ebc-transition);
}

.ebc-question-card:hover::before {
    opacity: 1;
}

/* Print styles */
@media print {
    .ebc-submit-container,
    .ebc-loading {
        display: none;
    }
    
    .ebc-question-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #000;
        margin-bottom: 20px;
    }
}

/* Estilos para imágenes en resultados */
.ebc-question-image-result {
    margin: 12px 0;
    text-align: center;
}

.ebc-question-image-result img {
    max-width: 300px;
    max-height: 200px;
    border-radius: var(--ebc-border-radius);
    box-shadow: var(--ebc-shadow);
    border: 1px solid var(--ebc-border);
}

.ebc-option-image-result {
    margin: 8px 0;
    text-align: left;
}

.ebc-option-image-result img {
    max-width: 150px;
    max-height: 100px;
    border-radius: 4px;
    border: 1px solid var(--ebc-border);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* Responsive para imágenes en resultados */
@media (max-width: 768px) {
    .ebc-question-image-result img {
        max-width: 250px;
        max-height: 150px;
    }
    
    .ebc-option-image-result img {
        max-width: 120px;
        max-height: 80px;
    }
}

@media (max-width: 480px) {
    .ebc-question-image-result img {
        max-width: 200px;
        max-height: 120px;
    }
    
    .ebc-option-image-result img {
        max-width: 100px;
        max-height: 60px;
    }
}