/* ESTILOS ACTUALIZADOS CON MEJORAS SEO Y DISEÑO - FUENTE ORIGINAL */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-primary: #2c3e50;
    --color-secondary: #3498db;
    --color-accent: #e74c3c;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-background: #f8f9fa;
    --color-white: #ffffff;
    --color-border: #e1e8ed;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
    --border-radius: 8px;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.7;
    color: var(--color-text);
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
}

/* HEADER MEJORADO */
header {
    background: linear-gradient(135deg, var(--color-primary) 0%, #34495e 100%);
    color: var(--color-white);
    padding: 2rem 1rem;
    box-shadow: var(--shadow);
    border-bottom: 4px solid var(--color-secondary);
}

.header-content {
    text-align: center;
    margin-bottom: 1.5rem;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: -0.5px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.tagline {
    font-size: 1.2rem;
    font-weight: 400;
    opacity: 0.9;
    font-style: italic;
}

/* NAVEGACIÓN MEJORADA */
nav {
    max-width: 1200px;
    margin: 0 auto;
}

.nav-controls {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    align-items: center;
}

select {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    padding: 12px 16px;
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius);
    font-size: 16px;
    background: var(--color-white);
    color: var(--color-text);
    min-width: 250px;
    transition: all 0.3s ease;
    font-weight: 500;
}

select:focus {
    outline: none;
    border-color: var(--color-secondary);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-accent) 0%, #c0392b 100%);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(231, 76, 60, 0.3);
}

/* CONTENIDO PRINCIPAL */
main {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
}

#contenedor-capitulo {
    background: var(--color-white);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
    border-left: 5px solid var(--color-secondary);
}

.bienvenida {
    text-align: center;
    padding: 2rem;
}

.bienvenida h2 {
    font-size: 2rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
    font-weight: 600;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.bienvenida p {
    font-size: 1.2rem;
    color: var(--color-text-light);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.versiculo-destacado {
    background: linear-gradient(135deg, #ffeaa7 0%, #fab1a0 100%);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border-left: 4px solid #e17055;
    font-style: italic;
    font-size: 1.3rem;
    color: var(--color-primary);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* ESTILOS PARA TEXTO BÍBLICO MEJORADO */
.versiculos {
    line-height: 1.8;
    font-size: 18px;
    color: var(--color-text);
    text-align: justify;
}

.versiculos p {
    margin-bottom: 1.2rem;
    padding: 0.8rem 1rem;
    border-left: 3px solid transparent;
    transition: all 0.3s ease;
    position: relative;
}

.versiculos p:hover {
    border-left: 3px solid var(--color-secondary);
    background: linear-gradient(90deg, rgba(52, 152, 219, 0.05) 0%, transparent 100%);
    padding-left: 1.5rem;
}

.versiculo-num {
    font-weight: 700;
    color: var(--color-accent);
    background: #ffeaa7;
    padding: 3px 8px;
    border-radius: 4px;
    margin-right: 10px;
    font-size: 14px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: inline-block;
    min-width: 30px;
    text-align: center;
}

.texto-biblico h3 {
    color: var(--color-primary);
    border-bottom: 3px solid var(--color-secondary);
    padding-bottom: 0.8rem;
    margin-bottom: 1.8rem;
    font-size: 1.8rem;
    font-weight: 600;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.explicacion {
    background: linear-gradient(135deg, #fff3cd 0%, #ffeaa7 100%);
    border-left: 5px solid #f39c12;
    margin: 2rem 0;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.explicacion h3 {
    color: #e74c3c;
    margin-bottom: 1.2rem;
    font-size: 1.5rem;
    font-weight: 600;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.explicacion p {
    font-style: italic;
    line-height: 1.8;
    color: #2c3e50;
}

/* VIDEO CONTAINER MEJORADO */
.video-container {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%;
    margin: 2.5rem 0;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

/* Estilos adicionales para parábolas */
.referencia-biblica {
    background: #e8f4fd;
    padding: 1rem;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--color-secondary);
    margin: 1rem 0;
    font-style: italic;
    color: var(--color-primary);
}

.error-mensaje {
    text-align: center;
    padding: 2rem;
    background: #ffeaa7;
    border-radius: var(--border-radius);
    border: 2px solid #fdcb6e;
}

.error-mensaje h2 {
    color: #e74c3c;
    margin-bottom: 1rem;
}

/* NAVEGACIÓN MEJORADA */
.navegacion {
    display: flex;
    gap: 1rem;
    justify-content: space-between;
    margin-top: 2rem;
}

.btn-nav {
    flex: 1;
    background: linear-gradient(135deg, var(--color-primary) 0%, #34495e 100%);
    color: white;
    border: none;
    padding: 15px 20px;
    border-radius: var(--border-radius);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
}

.btn-nav:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(44, 62, 80, 0.3);
}

.btn-nav:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* FOOTER MEJORADO */
footer {
    background: linear-gradient(135deg, var(--color-primary) 0%, #2c3e50 100%);
    color: var(--color-white);
    padding: 3rem 1rem 1rem;
    margin-top: 4rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: var(--color-secondary);
    margin-bottom: 1rem;
    font-size: 1.3rem;
    font-weight: 600;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.footer-section p {
    line-height: 1.7;
    opacity: 0.9;
}

.social-links {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.social-link {
    color: var(--color-white);
    text-decoration: none;
    padding: 0.8rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
    font-weight: 500;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.social-link:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateX(5px);
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.versiculo-footer {
    font-style: italic;
    opacity: 0.8;
    margin-top: 1rem;
    font-size: 1.1rem;
}

/* RESPONSIVE DESIGN MEJORADO */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }
    
    .tagline {
        font-size: 1rem;
    }
    
    .nav-controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    select {
        min-width: auto;
        width: 100%;
    }
    
    .versiculos {
        font-size: 16px;
    }
    
    .versiculo-num {
        font-size: 12px;
        padding: 2px 6px;
        min-width: 25px;
    }
    
    #contenedor-capitulo {
        padding: 1.5rem;
    }
    
    .navegacion {
        flex-direction: column;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    header {
        padding: 1.5rem 1rem;
    }
    
    header h1 {
        font-size: 1.8rem;
    }
    
    .versiculos p {
        padding: 0.5rem;
        text-align: left;
    }
    
    .bienvenida {
        padding: 1rem;
    }
    
    .bienvenida h2 {
        font-size: 1.5rem;
    }
}



/* MEJORAS DE ACCESIBILIDAD */
@media (prefers-reduced-motion: reduce) {
    * {
        transition: none !important;
        animation: none !important;
    }
}

/* Foco visible para accesibilidad */
button:focus, select:focus, a:focus {
    outline: 3px solid var(--color-secondary);
    outline-offset: 2px;
}

/* Mejora de contraste para texto */
.versiculos p {
    color: #1a1a1a;
}

.explicacion p {
    color: #2c3e50;
}