:root {
        --neon-red: #ff073a;
        --dark-bg: #0a0a0a;
        --dark-secondary: #121212;
        --text-primary: #f0f0f0;
        --text-secondary: #a0a0a0;
      }

      body {
        background-color: var(--dark-bg);
        color: var(--text-primary);
        font-family: 'Roboto Mono', monospace;
        position: relative;
        overflow-x: hidden;
      }

      h1, h2, h3, h4, h5, h6 {
        font-family: 'Orbitron', sans-serif;
        letter-spacing: 1px;
      }

      .neon-text {
        color: var(--neon-red);
        text-shadow: 0 0 5px var(--neon-red), 
                    0 0 10px var(--neon-red), 
                    0 0 20px var(--neon-red);
      }

      .neon-border {
        border: 2px solid var(--neon-red);
        box-shadow: 0 0 5px var(--neon-red), 
                    0 0 10px var(--neon-red);
      }

      .neon-glow {
        box-shadow: 0 0 5px var(--neon-red), 
                    0 0 10px var(--neon-red);
      }

      .neon-button {
        background-color: transparent;
        color: var(--neon-red);
        border: 1px solid var(--neon-red);
        box-shadow: 0 0 5px var(--neon-red);
        transition: all 0.3s ease;
      }

      .neon-button:hover {
        background-color: var(--neon-red);
        color: var(--dark-bg);
        box-shadow: 0 0 10px var(--neon-red), 
                   0 0 20px var(--neon-red);
      }

      .glass-effect {
        background: rgba(18, 18, 18, 0.7);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        border: 1px solid rgba(255, 7, 58, 0.2);
        border-radius: 10px;
      }

      .skill-badge {
        background-color: var(--dark-secondary);
        border-left: 3px solid var(--neon-red);
        transition: all 0.3s ease;
      }

      .skill-badge:hover {
        transform: translateY(-5px);
        box-shadow: 0 5px 15px rgba(255, 7, 58, 0.3);
      }

      .project-card {
        background-color: var(--dark-secondary);
        border-radius: 10px;
        overflow: hidden;
        transition: all 0.3s ease;
      }

      .project-card:hover {
        transform: translateY(-10px);
        box-shadow: 0 10px 20px rgba(255, 7, 58, 0.2);
      }

      .tech-tag {
        background-color: rgba(255, 7, 58, 0.2);
        color: var(--neon-red);
        border-radius: 20px;
        padding: 2px 10px;
        font-size: 0.75rem;
      }

      .typing-effect::after {
        content: "|";
        animation: blink 1s infinite;
      }

      @keyframes blink {
        0%, 100% { opacity: 1; }
        50% { opacity: 0; }
      }

      /* Grid layouts */
      .grid-container {
        display: grid;
        grid-template-columns: 1fr;
        gap: 2rem;
      }

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

      @media (min-width: 1024px) {
        .grid-container {
          grid-template-columns: 1fr 1fr 1fr;
        }
      }
      
      .blog-post {
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        transition: all 0.3s ease;
      }
      
      .blog-post:hover {
        background-color: rgba(255, 7, 58, 0.05);
      }
      
      /* Custom scrollbar */
      ::-webkit-scrollbar {
        width: 8px;
      }
      
      ::-webkit-scrollbar-track {
        background: var(--dark-bg);
      }
      
      ::-webkit-scrollbar-thumb {
        background: var(--neon-red);
        border-radius: 10px;
      }

      /* Terminal effect */
      .terminal {
        background-color: #0c0c0c;
        border-radius: 8px;
        padding: 20px;
        font-family: 'Roboto Mono', monospace;
        position: relative;
        overflow: hidden;
      }
      
      .terminal::before {
        content: "$ ";
        color: var(--neon-red);
      }
      
      /* Theme toggle */
      .theme-switch {
        position: relative;
        display: inline-block;
        width: 60px;
        height: 34px;
      }

      .theme-switch input {
        opacity: 0;
        width: 0;
        height: 0;
      }

      .slider {
        position: absolute;
        cursor: pointer;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-color: #333;
        transition: .4s;
        border-radius: 34px;
      }

      .slider:before {
        position: absolute;
        content: "";
        height: 26px;
        width: 26px;
        left: 4px;
        bottom: 4px;
        background-color: white;
        transition: .4s;
        border-radius: 50%;
      }

      input:checked + .slider {
        background-color: var(--neon-red);
      }

      input:checked + .slider:before {
        transform: translateX(26px);
      }
      
      /* Floating circuit lines */
      .circuit-bg {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        z-index: -1;
        opacity: 0.1;
        pointer-events: none;
      }
      
      .circuit-line {
        position: absolute;
        background-color: var(--neon-red);
        opacity: 0.6;
      }
      
      /* Glitch effect */
      .glitch {
        position: relative;
      }

      .glitch::before,
      .glitch::after {
        content: attr(data-text);
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
      }

      .glitch::before {
        left: 2px;
        text-shadow: -2px 0 var(--neon-red);
        clip: rect(44px, 450px, 56px, 0);
        animation: glitch-anim 5s infinite linear alternate-reverse;
      }

      .glitch::after {
        left: -2px;
        text-shadow: -2px 0 var(--neon-red);
        clip: rect(44px, 450px, 56px, 0);
        animation: glitch-anim2 5s infinite linear alternate-reverse;
      }

      @keyframes glitch-anim {
        0% { clip: rect(13px, 9999px, 94px, 0); }
        5% { clip: rect(65px, 9999px, 70px, 0); }
        10% { clip: rect(41px, 9999px, 88px, 0); }
        15% { clip: rect(29px, 9999px, 75px, 0); }
        20% { clip: rect(90px, 9999px, 66px, 0); }
        25% { clip: rect(15px, 9999px, 5px, 0); }
        30% { clip: rect(75px, 9999px, 93px, 0); }
        35% { clip: rect(93px, 9999px, 41px, 0); }
        40% { clip: rect(43px, 9999px, 70px, 0); }
        45% { clip: rect(96px, 9999px, 58px, 0); }
        50% { clip: rect(22px, 9999px, 23px, 0); }
        55% { clip: rect(76px, 9999px, 73px, 0); }
        60% { clip: rect(19px, 9999px, 18px, 0); }
        65% { clip: rect(71px, 9999px, 86px, 0); }
        70% { clip: rect(25px, 9999px, 33px, 0); }
        75% { clip: rect(31px, 9999px, 95px, 0); }
        80% { clip: rect(74px, 9999px, 32px, 0); }
        85% { clip: rect(28px, 9999px, 77px, 0); }
        90% { clip: rect(67px, 9999px, 98px, 0); }
        95% { clip: rect(15px, 9999px, 72px, 0); }
        100% { clip: rect(43px, 9999px, 65px, 0); }
      }

      /* Utilidades de Tailwind que las páginas del blog necesitan pero que
         no existen en css/tailwind.min.css: ese fichero es un build ya
         purgado con solo las clases que usaba el index.html original, no
         el framework completo. Se añaden aquí a mano con los mismos
         valores que Tailwind, en vez de generar un tailwind.min.css nuevo
         sin tener el pipeline de build original. */
      .pt-32 { padding-top: 8rem; }
      .pb-20 { padding-bottom: 5rem; }
      .max-w-3xl { max-width: 48rem; }
      .max-h-96 { max-height: 24rem; }
      .text-gray-700 { --tw-text-opacity: 1; color: rgb(55 65 81 / var(--tw-text-opacity, 1)); }

      @media (min-width: 768px) {
        .md\:p-10 { padding: 2.5rem; }
      }

      /* Article content (Markdown renderizado del blog) */
      .article-content h1,
      .article-content h2,
      .article-content h3 {
        color: var(--text-primary);
        margin-top: 1.75rem;
        margin-bottom: 0.75rem;
      }

      .article-content h1 { font-size: 1.75rem; }
      .article-content h2 { font-size: 1.5rem; }
      .article-content h3 { font-size: 1.25rem; }

      .article-content p,
      .article-content ul,
      .article-content ol,
      .article-content blockquote,
      .article-content table {
        margin-bottom: 1.1rem;
        line-height: 1.75;
      }

      .article-content ul,
      .article-content ol {
        padding-left: 1.5rem;
      }

      .article-content ul { list-style: disc; }
      .article-content ol { list-style: decimal; }

      .article-content a {
        color: var(--neon-red);
        text-decoration: underline;
      }

      .article-content blockquote {
        border-left: 3px solid var(--neon-red);
        padding-left: 1rem;
        color: var(--text-secondary);
        font-style: italic;
      }

      .article-content code {
        background-color: var(--dark-secondary);
        border-radius: 4px;
        padding: 0.15rem 0.4rem;
        font-family: 'Roboto Mono', monospace;
        font-size: 0.9em;
      }

      .article-content pre {
        background-color: var(--dark-secondary);
        border: 1px solid rgba(255, 7, 58, 0.2);
        border-radius: 8px;
        padding: 1rem;
        overflow-x: auto;
        margin-bottom: 1.1rem;
      }

      .article-content pre code {
        background: none;
        padding: 0;
      }

      .article-content img {
        max-width: 100%;
        border-radius: 8px;
        margin-bottom: 1.1rem;
      }

      .article-content table {
        width: 100%;
        border-collapse: collapse;
      }

      .article-content th,
      .article-content td {
        border: 1px solid rgba(255, 255, 255, 0.1);
        padding: 0.5rem 0.75rem;
        text-align: left;
      }

      @keyframes glitch-anim2 {
        0% { clip: rect(61px, 9999px, 36px, 0); }
        5% { clip: rect(95px, 9999px, 36px, 0); }
        10% { clip: rect(48px, 9999px, 70px, 0); }
        15% { clip: rect(42px, 9999px, 30px, 0); }
        20% { clip: rect(2px, 9999px, 29px, 0); }
        25% { clip: rect(46px, 9999px, 16px, 0); }
        30% { clip: rect(57px, 9999px, 84px, 0); }
        35% { clip: rect(38px, 9999px, 46px, 0); }
        40% { clip: rect(16px, 9999px, 36px, 0); }
        45% { clip: rect(40px, 9999px, 31px, 0); }
        50% { clip: rect(18px, 9999px, 93px, 0); }
        55% { clip: rect(1px, 9999px, 91px, 0); }
        60% { clip: rect(50px, 9999px, 8px, 0); }
        65% { clip: rect(85px, 9999px, 77px, 0); }
        70% { clip: rect(38px, 9999px, 82px, 0); }
        75% { clip: rect(64px, 9999px, 15px, 0); }
        80% { clip: rect(94px, 9999px, 35px, 0); }
        85% { clip: rect(54px, 9999px, 62px, 0); }
        90% { clip: rect(83px, 9999px, 97px, 0); }
        95% { clip: rect(33px, 9999px, 71px, 0); }
        100% { clip: rect(48px, 9999px, 42px, 0); }
      }