:root {
    /* Color Palette actualizada para WorldReactive */
    --color-primary: #9c27b0; /* Violeta/Fucsia */
    --color-primary-light: #d05ce3;
    --color-primary-dark: #6a0080;
    --color-secondary: #2196f3; /* Azul Cyber */
    --color-secondary-light: #6ec6ff;
    --color-secondary-dark: #0069c0;
    --color-dark: #121212; /* Negro Elegante */
    --color-dark-light: #1e1e1e;
    --color-success: #4caf50;
    --color-text-secondary: #e0e0e0;
    --color-text-primary: #ffffff;
    --color-background: #0a0a0a;
    --color-card-bg: #1a1a1a;
    --color-border: #333333;
    --color-orange: #ff9800;
    --color-purple-light: #bb86fc;
    --color-red: #f44336;
    --color-code-comment: var(--color-success);
    --color-code-keyword: var(--color-primary-light);
    
    /* Colores para categorías de patrones */
    --color-creacionales: #ff9800;
    --color-estructurales: #2196f3;
    --color-comportamiento: #4caf50;
    
    /* Colores para principios SOLID */
    --color-s: #9c27b0;
    --color-o: #2196f3;
    --color-l: #4caf50;
    --color-i: #ff9800;
    --color-d: #f44336;
    
    /* Typography */
    --font-primary: 'Roboto', sans-serif;
    --font-secondary: 'Orbitron', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;
    
    /* Border Radius */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 16px;
    
    /* Animation */
    --transition-speed: 0.3s;
}

body {
    font-family: var(--font-primary), 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--color-background);
    color: var(--color-text-primary);
}

/* Header al estilo WorldReactive */
.nav-header {
    background-color: #0a0a0a;
    padding: 15px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid #333;
}

.logo {
    font-family: var(--font-secondary);
    font-size: 24px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.world {
    color: white;
}

.reactive {
    background: linear-gradient(to right, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.back-button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: white;
    border-radius: 50%;
    text-decoration: none;
    font-size: 16px;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: none;
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
    position: relative;
    overflow: hidden;
}

.back-button:before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transform: scale(0);
    transition: transform 0.5s ease;
}

.back-button:hover {
    transform: scale(1.1) rotate(-5deg);
    box-shadow: 0 5px 15px rgba(156, 39, 176, 0.4);
}

.back-button:hover:before {
    transform: scale(1.5);
    opacity: 0;
}

.back-button i {
    position: relative;
    z-index: 2;
}

.pildora {
    max-width: 1000px;
    margin: 30px auto;
    background: var(--color-card-bg);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    overflow: hidden;
    border: 1px solid var(--color-border);
}

.pildora-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: var(--color-text-primary);
    padding: 25px;
    text-align: center;
}

.pildora-title {
    margin: 0;
    font-size: 28px;
    font-weight: 700;
    font-family: var(--font-secondary);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.pildora-subtitle {
    margin-top: 8px;
    font-size: 16px;
    opacity: 0.9;
}

.pildora-content {
    padding: 25px;
}

.definition-box {
    background-color: var(--color-dark-light);
    border-left: 5px solid var(--color-primary);
    padding: 15px;
    margin-bottom: 20px;
}

/* Estilos para la sección de patrones */
.patrones-section h2, .solid-intro h2 {
    color: var(--color-primary-light);
    font-size: 24px;
    margin-bottom: 15px;
    border-bottom: 2px solid var(--color-border);
    padding-bottom: 10px;
}

.categorias-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 25px;
    margin-top: 30px;
}

.principios-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 25px;
    margin-top: 30px;
}

.categoria-card, .principio-card {
    background-color: var(--color-dark-light);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.categoria-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.3);
}

.principio-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.3);
}

.categoria-header, .principio-header {
    padding: 15px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.categoria-header.creacionales {
    background: linear-gradient(135deg, var(--color-creacionales) 0%, #ffb74d 100%);
}

.categoria-header.estructurales {
    background: linear-gradient(135deg, var(--color-estructurales) 0%, #64b5f6 100%);
}

.categoria-header.comportamiento {
    background: linear-gradient(135deg, var(--color-comportamiento) 0%, #81c784 100%);
}

.categoria-header i, .principio-header .letra {
    font-size: 24px;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(0,0,0,0.2);
    border-radius: 50%;
}

.categoria-header h4 {
    margin: 0;
    color: white;
    font-size: 22px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.principio-header h3 {
    margin: 0;
    color: white;
    font-size: 20px;
}

.categoria-content, .principio-content {
    padding: 20px;
}

.ejemplos h5 {
    color: var(--color-secondary-light);
    margin-bottom: 10px;
}

.ejemplos-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin: 20px 0;
}

.ejemplo-item {
    background-color: rgba(255, 255, 255, 0.05);
    padding: 15px;
    border-radius: var(--border-radius-sm);
    font-size: 14px;
    transition: transform 0.3s ease, background-color 0.3s ease;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.ejemplo-item:hover {
    transform: translateY(-3px);
    background-color: rgba(255, 255, 255, 0.1);
}

.ejemplo-item strong {
    color: var(--color-primary-light);
    display: block;
    margin-bottom: 5px;
}

@media (max-width: 768px) {
    .ejemplos-grid {
        grid-template-columns: 1fr;
    }
}

.analogia {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-top: 15px;
    padding: 10px;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-sm);
}

.analogia i {
    color: var(--color-orange);
    font-size: 20px;
    margin-top: 3px;
}

/* Estilos para patrones modernos */
.patrones-modernos {
    margin-top: 40px;
}

.patrones-modernos h3 {
    color: var(--color-secondary-light);
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.moderno-card {
    display: flex;
    background-color: var(--color-dark-light);
    border-radius: var(--border-radius-md);
    margin-bottom: 15px;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0,0,0,0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.moderno-card:hover {
    transform: translateX(10px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

.moderno-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 70px;
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    color: white;
    font-size: 24px;
}

.moderno-content {
    padding: 15px;
    flex: 1;
}

.moderno-content h4 {
    margin-top: 0;
    margin-bottom: 8px;
    color: var(--color-primary-light);
}

.moderno-content p {
    margin: 0;
    font-size: 14px;
    line-height: 1.5;
}

/* Estilos para SOLID */
.principio-header .letra {
    font-weight: bold;
    font-size: 28px;
}

.principio-header:nth-child(1) .letra {
    background-color: var(--color-s);
}

.principio-header:nth-child(2) .letra {
    background-color: var(--color-o);
}

.principio-header:nth-child(3) .letra {
    background-color: var(--color-l);
}

.principio-header:nth-child(4) .letra {
    background-color: var(--color-i);
}

.principio-header:nth-child(5) .letra {
    background-color: var(--color-d);
}

.principio-definicion {
    background-color: rgba(255, 255, 255, 0.05);
    padding: 15px;
    border-radius: var(--border-radius-sm);
    margin-bottom: 15px;
}

.principio-definicion p:first-child {
    color: var(--color-primary-light);
    font-weight: bold;
    margin-top: 0;
}

.principio-definicion p:last-child {
    margin-bottom: 0;
    font-style: italic;
}

.principio-ejemplo h4, .principio-codigo h4 {
    color: var(--color-secondary-light);
    margin-bottom: 10px;
}

.principio-codigo-container {
    margin-top: 20px;
}

.principio-codigo-row {
    display: flex;
    gap: 20px;
    margin-bottom: 15px;
}

.principio-codigo-col {
    flex: 1;
}

.principio-codigo-col h4 {
    color: var(--color-secondary-light);
    margin-bottom: 10px;
}

.principio-codigo-col pre {
    background-color: rgba(0, 0, 0, 0.3);
    padding: 15px;
    border-radius: var(--border-radius-sm);
    overflow-x: auto;
    font-family: monospace;
    font-size: 14px;
    line-height: 1.5;
    height: 100%;
    min-height: 200px;
}

.code-bad {
    border-left: 4px solid var(--color-red);
}

.code-good {
    border-left: 4px solid var(--color-success);
}

@media (max-width: 768px) {
    .principio-codigo-row {
        flex-direction: column;
    }
}

/* Beneficios SOLID */
.beneficios-section {
    margin-top: 40px;
}

.beneficios-section h2 {
    color: var(--color-secondary-light);
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.beneficios-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.beneficio {
    background-color: var(--color-dark-light);
    padding: 20px;
    border-radius: var(--border-radius-md);
    text-align: center;
    transition: transform 0.3s ease;
}

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

.beneficio i {
    font-size: 36px;
    color: var(--color-primary-light);
    margin-bottom: 15px;
}

.beneficio h3 {
    color: var(--color-secondary-light);
    margin-top: 0;
    margin-bottom: 10px;
}

.beneficio p {
    margin: 0;
}

/* Conclusión */
.conclusion-section {
    background-color: var(--color-dark-light);
    border-radius: var(--border-radius-md);
    padding: 20px;
    margin-top: 30px;
    border-left: 5px solid var(--color-secondary);
}

.conclusion-list {
    list-style: none;
    padding: 0;
    margin-top: 15px;
}

.conclusion-list li {
    display: flex;
    align-items: flex-start;
    margin-bottom: 10px;
}

.conclusion-list i {
    color: var(--color-success);
    margin-right: 10px;
    margin-top: 3px;
}

/* Estilos para el ejemplo de código */
.code-example {
    background: var(--color-dark-light);
    padding: 20px;
    border-radius: var(--border-radius-md);
    font-family: monospace;
    margin: 20px 0;
    overflow-x: auto;
}

.code-example h3 {
    margin-top: 0;
    color: var(--color-secondary-light);
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 10px;
    margin-bottom: 15px;
}

.code-example pre {
    color: var(--color-text-primary);
    line-height: 1.5;
    margin: 0;
}

.code-comment {
    color: var(--color-code-comment);
}

.code-keyword {
    color: var(--color-code-keyword);
}

footer {
    text-align: center;
    padding: 20px;
    margin-top: 30px;
    color: var(--color-text-secondary);
    font-size: 14px;
    border-top: 1px solid var(--color-border);
}

/* Responsive */


@media (min-width: 768px) {
    .beneficios-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 768px) {
    .pildora {
        margin: 15px;
        border-radius: var(--border-radius-md);
    }
    
    .moderno-card {
        flex-direction: column;
    }
    
    .moderno-icon {
        width: 100%;
        height: 60px;
    }
    
    .beneficios-grid {
        grid-template-columns: 1fr;
    }
}