:root {
    --azul-fuerte: #0056b3;
    --azul-oscuro: #003d82;
    --azul-claro: #e6f0ff;
    --blanco: #ffffff;
    --gris-claro: #f5f5f5;
    --texto-oscuro: #333333;
    --rojo: #e74c3c;
    --rojo-oscuro: #c0392b;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-image: url('buho1.jpeg');
    background-size: cover;
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    color: var(--texto-oscuro);
    line-height: 1.6;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

header {
    background-color: var(--rojo);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo-container {
    display: flex;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--blanco);
    margin-left: 10px;
}

nav ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

nav li {
    margin-left: 25px;
}

nav a {
    text-decoration: none;
    color: var(--blanco);
    font-weight: 500;
    transition: all 0.3s;
    padding: 8px 16px;
    border-radius: 4px;
}

nav a:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

section {
    padding: 80px 0;
}

.hero {
    text-align: center;
    background-color: rgba(255, 255, 255, 0.7);
    padding: 100px 0;
    border-radius: 10px;
    margin: 20px auto;
    max-width: 95%;
    backdrop-filter: blur(2px);
}

.hero h1 {
    font-size: 2.8rem;
    margin-bottom: 20px;
    color: var(--azul-fuerte);
    text-shadow: 1px 1px 3px rgba(255, 255, 255, 0.8);
}

.hero p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 30px;
    color: var(--texto-oscuro);
    text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.8);
}

.btn {
    display: inline-block;
    background-color: var(--azul-fuerte);
    color: var(--blanco);
    padding: 12px 30px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: var(--shadow);
}

.btn:hover {
    background-color: var(--azul-oscuro);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--azul-claro);
    color: var(--azul-fuerte);
}

.btn-secondary:hover {
    background-color: var(--azul-fuerte);
    color: var(--blanco);
}

.section-title {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 50px;
    color: var(--azul-fuerte);
    text-shadow: 1px 1px 3px rgba(255, 255, 255, 0.8);
}

#acerca {
    background-color: rgba(255, 255, 255, 0.7);
    border-radius: 10px;
    margin: 20px auto;
    max-width: 95%;
    backdrop-filter: blur(2px);
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: rgba(255, 255, 255, 0.9);
    padding: 30px;
    border-radius: 8px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
    border: 1px solid rgba(0, 86, 179, 0.1);
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    color: var(--azul-fuerte);
    margin-bottom: 15px;
}

#test {
    background-color: rgba(240, 247, 255, 0.8);
    border-radius: 10px;
    margin: 20px auto;
    max-width: 95%;
    backdrop-filter: blur(2px);
}

.test-container {
    background-color: rgba(255, 255, 255, 0.95);
    border-radius: 10px;
    padding: 40px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(0, 86, 179, 0.1);
}

.form-row {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    flex: 1;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--texto-oscuro);
}

input,
select,
textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    box-sizing: border-box;
    background-color: rgba(255, 255, 255, 0.9);
}

textarea {
    resize: vertical;
    min-height: 120px;
}


.progress-bar-container {
    height: 10px;
    background-color: #e0e0e0;
    border-radius: 5px;
    margin: 20px 0;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background-color: var(--rojo);
    width: 0%;
    transition: width 0.3s;
}


.question {
    display: none;
    margin-bottom: 20px;
    padding: 20px;
    border: 1px solid #e0e0e0;
    border-radius: 5px;
    background-color: rgba(255, 255, 255, 0.8);
}

.question.active {
    display: block;
}

.question p strong {
    color: var(--azul-fuerte);
}

.options-group {
    display: grid;
    grid-template-columns: 1fr 1fr; /* 2 columnas para opciones A, B, C, D */
    gap: 10px;
    margin-top: 15px;
}

.options-group label {
    display: flex;
    align-items: center;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s;
    background-color: rgba(255, 255, 255, 0.9);
}

.options-group label:hover {
    background-color: var(--azul-claro);
}

.options-group input[type="radio"] {
    width: 20px; /* Tamaño fijo para radio button */
    margin-right: 10px;
}

.options-group input[type="radio"]:checked + strong {
    color: var(--rojo);
}

/* Título de la sección de materia para COMIPEMS */
.section-title-comipems {
    color: var(--rojo-oscuro);
    border-bottom: 2px solid var(--rojo-oscuro);
    padding-bottom: 10px;
    margin-top: 25px;
    margin-bottom: 20px;
    font-size: 1.5rem;
}

/* Estilo para fórmulas matemáticas renderizadas por MathJax */
.math-render {
    font-size: 1.05rem;
}


/* Estilos para el desglose de resultados COMIPEMS/UAM */
#uam-details {
    margin-top: 40px;
    text-align: left;
    background-color: var(--gris-claro);
    padding: 20px;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

#uam-details h3 {
    color: var(--azul-fuerte);
    margin-bottom: 20px;
    text-align: center;
}

#uam-details h4 {
    color: var(--rojo);
    margin-top: 20px;
    margin-bottom: 10px;
    border-bottom: 1px dashed var(--rojo-oscuro);
}

.question-container {
    margin-bottom: 20px;
    padding: 20px;
    border: 1px solid #e0e0e0;
    border-radius: 5px;
    background-color: rgba(255, 255, 255, 0.8);
}

.question-text {
    margin-bottom: 15px;
    font-weight: 500;
}

.navigation-buttons, .navigation {
    display: flex;
    justify-content: space-between;
    margin-top: 30px;
}

.instructions-content {
    background-color: var(--azul-claro);
    padding: 30px;
    border-radius: 8px;
    margin-bottom: 30px;
}

.instructions-content h3 {
    color: var(--azul-fuerte);
    margin-bottom: 15px;
}

.results {
    text-align: center;
}

.user-info {
    background-color: var(--azul-claro);
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 30px;
}

.user-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    text-align: left;
}

.career-card {
    background-color: rgba(255, 255, 255, 0.9);
    border-left: 5px solid var(--azul-fuerte);
    padding: 20px;
    margin-bottom: 15px;
    border-radius: 5px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
    text-align: left;
}

.career-card h3 {
    color: var(--azul-fuerte);
    margin-bottom: 10px;
}

.career-card.top-area {
    border-left-color: var(--rojo); /* Destacar la mejor área */
    box-shadow: 0 5px 15px rgba(231, 76, 60, 0.2);
    transform: scale(1.02);
}

#cambridge {
    background-color: rgba(255, 255, 255, 0.7);
    border-radius: 10px;
    margin: 20px auto;
    max-width: 95%;
    backdrop-filter: blur(2px);
    justify-content: center;
    display: flex;
}

#recursos {
    background-color: rgba(255, 255, 255, 0.7);
    border-radius: 10px;
    margin: 20px auto;
    max-width: 95%;
    backdrop-filter: blur(2px);
}

.resources {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.resource-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    min-height: 320px; 
    background-color: rgba(255, 255, 255, 0.9);
    padding: 30px 20px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    text-align: center;
    border: 1px solid rgba(0, 86, 179, 0.1);
    transition: transform 0.3s;
}


.resource-card p {
    flex-grow: 1; 
    margin-bottom: 20px;
    display: flex;
    align-items: center; 
    justify-content: center;
}

.resource-card:hover {
    transform: translateY(-5px);
}

.resource-card h3 {
    color: var(--azul-fuerte);
    margin-bottom: 15px;
    height: 50px; 
    display: flex;
    align-items: center;
    justify-content: center;
}




#contacto {
    background-color: rgba(255, 255, 255, 0.7);
    border-radius: 10px;
    margin: 20px auto;
    max-width: 95%;
    backdrop-filter: blur(2px);
    justify-content: center;
    display: flex;
}

.contact-container {
    display: flex; 
    justify-content: center;
    width: 100%;
}

.contact-info {
    display: grid;
    
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); 
    gap: 30px;
    width: 100%;
    max-width: 1200px; 
    justify-content: center;
}

.contact-card {
    background-color: rgba(255, 255, 255, 0.9);
    padding: 30px 20px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform 0.3s;
    border: 1px solid rgba(0, 86, 179, 0.1);
    
   
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start; 
    height: 100%; 
}

.contact-card:hover {
    transform: translateY(-5px);
}

.contact-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.contact-card h3 {
    color: var(--azul-fuerte);
    margin-bottom: 10px;
}

.contact-card p {
    margin-bottom: 15px;
    color: var(--texto-oscuro);
    word-break: break-all;
    flex-grow: 1;
}

.btn-contact {
    display: inline-block;
    background-color: var(--azul-fuerte);
    color: var(--blanco);
    padding: 8px 20px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 500;
    transition: background-color 0.3s;
    box-shadow: var(--shadow);
    margin-top: auto; 
}

.btn-contact:hover {
    background-color: var(--azul-oscuro);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 10px;
    flex-wrap: wrap;
}

.social-link {
    color: var(--azul-fuerte);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.social-link:hover {
    color: var(--azul-oscuro);
    text-decoration: underline;
}




footer {
    background-color: rgba(231, 76, 60, 0.9);
    color: var(--blanco);
    text-align: center;
    padding: 40px 0;
    margin-top: 40px;
}

.footer-content {
    max-width: 600px;
    margin: 0 auto;
}

.footer-links {
    margin: 20px 0;
}

.footer-links a {
    color: var(--blanco);
    margin: 0 15px;
    text-decoration: none;
}

.footer-links a:hover {
    text-decoration: underline;
}


@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        text-align: center;
    }

    nav ul {
        margin-top: 15px;
        justify-content: center;
    }

    nav li {
        margin: 0 10px;
    }

    .form-row {
        flex-direction: column;
        gap: 0;
    }
    
    .options-group {
        grid-template-columns: 1fr; 
    }

    .contact-info {
        grid-template-columns: 1fr; 
        gap: 20px; 
    }

    .social-links {
        flex-direction: column;
        gap: 10px;
    }

    .hero,
    #acerca,
    #test,
    #recursos,
    #contacto 
    #cambridge {
        margin: 10px auto;
        max-width: 100%;
        border-radius: 0;
    }

    .hero-layout {
        flex-direction: column;
        text-align: center;
    }

    .hero-text {
        text-align: center;
    }
}

.hero-layout {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 30px;
}

.hero-image img {
    width: 200px;
    max-width: 100%;
    height: auto;
    display: block;
}


.hero-text {
    max-width: 600px;
    text-align: left;
}

@media (max-width: 768px) {
    .hero-layout {
        flex-direction: column;
        text-align: center;
    }

    .hero-text {
        text-align: center;
    }
}

/*.question-image {
  text-align: center;
  margin: 12px 0;
}

.question-image img {
  max-width: 100%;
  max-height: 250px;
  border-radius: 8px;
  border: 1px solid #ddd;
}
*/
.question-image {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.question-image img {
  max-width: 300px;
  height: auto;
}