*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

    .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
    .skip-link { position: absolute; top: -100%; left: 0; background: #FF4520; color: #fff; padding: 0.5rem 1rem; font-size: 0.85rem; z-index: 9999; border-radius: 0 0 4px 0; text-decoration: none; }
    .skip-link:focus { top: 0; }

    :root {
      --bg:      #06050b;
      --surface: #0c0a14;
      --card:    #110e1c;
      --white:   #ffffff;
      --dim:     rgba(255,255,255,0.62);
      --faint:   rgba(255,255,255,0.07);
      --orange:  #FF4520;
      --pink:    #FF1078;
      --grad:    linear-gradient(135deg, #FF4520 0%, #FF1078 100%);
      --border:  rgba(255,255,255,0.07);
      --border-a:rgba(255,69,32,0.28);
      --ff-h:    'Playfair Display', Georgia, serif;
      --ff-ui:   'Plus Jakarta Sans', system-ui, sans-serif;
      --ff-b:    'Plus Jakarta Sans', system-ui, sans-serif;
    }

    html { scroll-behavior: smooth; }
    body {
      background: var(--bg);
      color: var(--white);
      font-family: var(--ff-b);
      font-size: 16px;
      line-height: 1.65;
      overflow-x: hidden;
    }
    body::after {
      content: '';
      position: fixed; inset: 0;
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.88' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.032'/%3E%3C/svg%3E");
      pointer-events: none; z-index: 9999; opacity: 0.45;
    }

    /* NAV */
    nav {
      position: fixed; top: 0; width: 100%; z-index: 200;
      padding: 1.15rem 6%;
      display: flex; justify-content: space-between; align-items: center;
      backdrop-filter: blur(24px);
      background: rgba(6,5,11,0.88);
      border-bottom: 1px solid var(--border);
    }
    .nav-logo-img { height: 36px; width: auto; display: block; }
    .nav-links { display: flex; gap: 2rem; list-style: none; }
    .nav-links a { color: var(--dim); text-decoration: none; font-size: 0.84rem; transition: color 0.2s; }
    .nav-links a:hover, .nav-links a.active { color: var(--white); }
    .nav-cta {
      background: var(--grad); color: #fff;
      padding: 0.55rem 1.35rem; border-radius: 3px;
      font-family: var(--ff-ui); font-size: 0.8rem; font-weight: 700;
      letter-spacing: 0.07em; text-transform: uppercase; text-decoration: none;
      transition: opacity 0.2s, transform 0.2s;
    }
    .nav-cta:hover { opacity: 0.88; transform: translateY(-1px); }

    /* HERO BLOG */
    .blog-hero {
      padding: 9rem 6% 4rem;
      background: transparent;
      border-bottom: 1px solid var(--border);
      position: relative;
      overflow: hidden;
      text-align: center;
    }
    .blog-hero-inner { max-width: 1180px; margin: 0 auto; position: relative; }
    .blog-eyebrow {
      font-family: var(--ff-ui);
      font-size: 0.68rem; font-weight: 700;
      letter-spacing: 0.22em; text-transform: uppercase;
      background: var(--grad);
      -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
      display: inline-block; margin-bottom: 0.8rem;
    }
    .blog-hero h1 {
      font-family: var(--ff-h);
      font-size: clamp(2rem, 4vw, 3.2rem);
      font-weight: 700;
      line-height: 1.12;
      margin-bottom: 0.9rem;
    }
    .blog-hero p {
      color: var(--dim); font-size: 1.05rem;
      max-width: 520px; line-height: 1.75;
      margin: 0 auto;
    }

    /* LAYOUT Y FEED PREMIUM */
    .blog-layout-centered {
      max-width: 840px;
      margin: 0 auto !important;
      padding: 4rem 6%;
      display: flex !important;
      flex-direction: column !important;
      gap: 2rem !important;
      align-items: center !important;
    }
    #articulos { width: 100% !important; }

    .articles-list { 
      display: flex; 
      flex-direction: column; 
      gap: 2.5rem; 
      width: 100%;
    }

    /* TARJETA DE ARTÍCULO */
    .article-item {
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 24px;
      padding: 3rem;
      text-align: center;
      width: 100%;
      transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), 
                  border-color 0.3s ease, 
                  box-shadow 0.3s ease;
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
      position: relative;
      overflow: hidden;
    }
    .article-item::after {
      content: '';
      position: absolute;
      top: 0; left: 0; right: 0; height: 1px;
      background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
    }
    .article-item:hover {
      transform: translateY(-8px);
      border-color: rgba(255, 69, 32, 0.35);
      background: rgba(255, 255, 255, 0.05);
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    }
    
    .article-item:first-child { padding-top: 3rem; }
    
    .article-meta {
      display: flex; 
      align-items: center; 
      justify-content: center; 
      gap: 1rem;
      margin-bottom: 1.5rem; 
      flex-wrap: wrap;
    }
    .article-date {
      font-family: var(--ff-ui);
      font-size: 0.7rem; font-weight: 700;
      letter-spacing: 0.14em; text-transform: uppercase;
      background: var(--grad);
      -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
    }
    .article-tag {
      background: rgba(255,69,32,0.1);
      border: 1px solid rgba(255,69,32,0.2);
      color: rgba(255,255,255,0.6);
      font-size: 0.68rem; font-weight: 600;
      letter-spacing: 0.1em; text-transform: uppercase;
      padding: 0.2rem 0.6rem; border-radius: 100px;
    }
    .article-item h2 {
      font-family: var(--ff-h);
      font-size: clamp(1.4rem, 2.5vw, 1.9rem);
      font-weight: 700;
      line-height: 1.2;
      margin-bottom: 0.9rem;
      transition: color 0.2s;
    }
    .article-item h2 a {
      color: var(--white);
      text-decoration: none;
    }
    .article-item h2 a:hover { color: var(--orange); }

    /* Contenido del artículo */
    .article-content {
      color: rgba(255,255,255,0.75);
      font-size: 0.95rem;
      line-height: 1.75;
      font-weight: 400;
    }
    .article-content p { margin-bottom: 1rem; }
    .article-content h3 {
      font-family: var(--ff-ui);
      font-size: 1.05rem; font-weight: 700;
      color: var(--white);
      margin: 1.5rem 0 0.6rem;
    }
    .article-content h2 {
      font-family: var(--ff-ui);
      font-size: 1.15rem; font-weight: 700;
      color: var(--white);
      margin: 1.75rem 0 0.6rem;
    }
    .article-content ul, .article-content ol {
      padding-left: 1.4rem;
      margin-bottom: 1rem;
    }
    .article-content li { margin-bottom: 0.4rem; }
    .article-content strong { color: var(--white); font-weight: 600; }
    .article-content a { color: var(--orange); text-decoration: underline; text-decoration-color: rgba(255,69,32,0.4); }
    .article-content a:hover { text-decoration-color: var(--orange); }
    .article-content blockquote {
      border-left: 3px solid var(--orange);
      padding-left: 1.2rem;
      margin: 1.25rem 0;
      color: rgba(255,255,255,0.65);
      font-style: italic;
    }
    .article-content hr { border: none; border-top: 1px solid var(--border); margin: 1.5rem 0; }

    /* Expandir / Colapsar */
    .article-excerpt { }
    .article-full { display: none; }
    .article-full.open { display: block; }

    .read-more-btn {
      display: inline-flex; align-items: center; gap: 0.5rem;
      background: none; border: none;
      font-family: var(--ff-ui);
      font-size: 0.85rem; font-weight: 700;
      background: var(--grad);
      -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
      cursor: pointer; padding: 0; margin-top: 1rem;
      transition: opacity 0.2s;
    }
    .read-more-btn:hover { opacity: 0.75; }
    .read-more-btn .arrow { transition: transform 0.25s; display: inline-block; }
    .read-more-btn.open .arrow { transform: rotate(180deg); }

    .article-substack-link {
      display: inline-flex; align-items: center; gap: 0.5rem;
      margin-top: 1.5rem;
      font-family: var(--ff-ui);
      font-size: 0.8rem; font-weight: 600;
      color: var(--dim);
      text-decoration: none;
      border: 1px solid var(--border);
      padding: 0.45rem 1rem; border-radius: 100px;
      transition: border-color 0.2s, color 0.2s;
    }
    .article-substack-link:hover { border-color: var(--border-a); color: var(--white); }

    /* LOADING / ERROR */
    .articles-loading {
      text-align: center;
      padding: 3rem;
      color: var(--dim);
    }
    .articles-loading .spinner {
      width: 32px; height: 32px;
      border: 2px solid var(--border);
      border-top-color: var(--orange);
      border-radius: 50%;
      animation: spin 0.7s linear infinite;
      margin: 0 auto 1rem;
    }
    @keyframes spin { to { transform: rotate(360deg); } }

    /* SIDEBAR */
    .sidebar { position: sticky; top: 6rem; }
    .sidebar-card {
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: 8px;
      padding: 1.75rem;
      position: relative;
      overflow: hidden;
      margin-bottom: 1.5rem;
    }
    .sidebar-card::before {
      content: '';
      position: absolute; top: 0; left: 0; right: 0; height: 2px;
      background: var(--grad);
    }
    .sidebar-card h3 {
      font-family: var(--ff-ui);
      font-size: 1rem; font-weight: 700;
      margin-bottom: 0.7rem;
    }
    .sidebar-card p {
      font-size: 0.85rem; color: var(--dim);
      line-height: 1.6; margin-bottom: 1.25rem;
      font-weight: 400;
    }
    .sidebar-cta {
      display: block; text-align: center;
      background: var(--grad); color: #fff;
      padding: 0.8rem; border-radius: 6px;
      font-family: var(--ff-ui); font-weight: 700;
      font-size: 0.85rem; text-decoration: none;
      transition: opacity 0.2s;
    }
    .sidebar-cta:hover { opacity: 0.88; }
    .sidebar-sub {
      font-size: 0.75rem; color: var(--dim);
      text-align: center; margin-top: 0.6rem;
    }

    /* FOOTER */
    footer {
      padding: 1.75rem 6%;
      border-top: 1px solid var(--border);
      display: flex; justify-content: space-between; align-items: center;
      flex-wrap: wrap; gap: 0.75rem;
    }
    .footer-logo-img { height: 28px; width: auto; opacity: 0.9; }
    footer span { font-size: 0.77rem; color: var(--dim); }
    .footer-social { display: flex; gap: 0.6rem; align-items: center; }
    .footer-social-link { display: flex; align-items: center; justify-content: center; width: 32px; height: 32px; border-radius: 8px; background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.08); transition: background 0.2s, border-color 0.2s; text-decoration: none; flex-shrink: 0; }
    .footer-social-link:hover { background: rgba(255,255,255,0.12); border-color: rgba(255,255,255,0.18); }
    .footer-social-link svg { width: 16px; height: 16px; display: block; }

    /* ─── HAMBURGUESA ─── */
    .nav-hamburger {
      display: none;
      flex-direction: column;
      gap: 5px;
      cursor: pointer;
      background: none;
      border: none;
      padding: 0.4rem;
      z-index: 201;
    }
    .nav-hamburger span {
      display: block;
      width: 24px;
      height: 2px;
      background: var(--white);
      border-radius: 2px;
      transition: transform 0.3s, opacity 0.3s;
    }
    .nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .nav-hamburger.open span:nth-child(2) { opacity: 0; }
    .nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

    .nav-mobile-menu {
      display: none;
      position: fixed;
      top: 0; left: 0; right: 0; bottom: 0;
      background: rgba(6,5,11,0.97);
      backdrop-filter: blur(16px);
      z-index: 200;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 2.5rem;
    }
    .nav-mobile-menu.open { display: flex; }
    .nav-mobile-menu a {
      color: var(--white);
      text-decoration: none;
      font-size: 1.5rem;
      font-weight: 700;
      letter-spacing: 0.04em;
      transition: color 0.2s;
    }
    .nav-mobile-menu a:hover { color: var(--orange); }
    .nav-mobile-menu .mobile-cta {
      background: var(--grad);
      padding: 0.85rem 2.5rem;
      border-radius: 8px;
      font-size: 1rem;
      margin-top: 1rem;
    }

    /* RESPONSIVE */
    @media (max-width: 900px) {
      .nav-links { display: none; }
      .nav-hamburger { display: flex; }
      .blog-layout { grid-template-columns: 1fr; gap: 2.5rem; }
      .sidebar { position: static; }
    }
    @media (max-width: 600px) {
      .blog-hero { padding: 7.5rem 5% 3rem; }
      .blog-layout { padding: 3rem 5%; }
      nav { padding: 0.9rem 5%; }
      .nav-logo-img { height: 26px; }
      footer { padding: 1.5rem 5%; flex-direction: column; align-items: flex-start; }
    }

    /* ─── FONDO ANIMADO GLOBAL ─── */
    #global-blobs {
      position: fixed;
      inset: 0;
      pointer-events: none;
      z-index: 0;
      overflow: hidden;
    }
    .g-blob {
      position: absolute;
      border-radius: 50%;
      will-change: transform;
      filter: blur(80px);
    }
    .g-blob-1 {
      width: 800px; height: 800px;
      background: radial-gradient(circle, rgba(255,69,32,0.32) 0%, transparent 70%);
      top: -200px; left: -200px;
      animation: gb1 40s linear infinite;
    }
    .g-blob-2 {
      width: 650px; height: 650px;
      background: radial-gradient(circle, rgba(255,16,120,0.28) 0%, transparent 70%);
      top: 15vh; right: -150px;
      animation: gb2 50s linear infinite;
    }
    .g-blob-3 {
      width: 550px; height: 550px;
      background: radial-gradient(circle, rgba(255,69,32,0.22) 0%, transparent 70%);
      top: 50vh; left: 10%;
      animation: gb3 45s linear infinite;
    }
    .g-blob-4 {
      width: 500px; height: 500px;
      background: radial-gradient(circle, rgba(255,16,120,0.25) 0%, transparent 70%);
      bottom: 10vh; right: 5%;
      animation: gb4 55s linear infinite;
    }
    .g-blob-5 {
      width: 480px; height: 480px;
      background: radial-gradient(circle, rgba(255,69,32,0.20) 0%, transparent 70%);
      bottom: -150px; left: 30%;
      animation: gb5 48s linear infinite;
    }

    @keyframes gb1 {
      0%   { transform: translate(0, 0) rotate(0deg) scale(1); }
      33%  { transform: translate(250px, 150px) rotate(120deg) scale(1.1); }
      66%  { transform: translate(100px, 350px) rotate(240deg) scale(0.9); }
      100% { transform: translate(0, 0) rotate(360deg) scale(1); }
    }
    @keyframes gb2 {
      0%   { transform: translate(0, 0) rotate(0deg) scale(1); }
      50%  { transform: translate(-300px, 200px) rotate(-180deg) scale(1.15); }
      100% { transform: translate(0, 0) rotate(-360deg) scale(1); }
    }
    @keyframes gb3 {
      0%   { transform: translate(0, 0) rotate(0deg) scale(1); }
      25%  { transform: translate(150px, -100px) rotate(90deg) scale(1.1); }
      75%  { transform: translate(-100px, 150px) rotate(270deg) scale(0.85); }
      100% { transform: translate(0, 0) rotate(360deg) scale(1); }
    }
    @keyframes gb4 {
      0%   { transform: translate(0, 0) scale(1); }
      50%  { transform: translate(-200px, -250px) scale(1.2); }
      100% { transform: translate(0, 0) scale(1); }
    }
    @keyframes gb5 {
      0%   { transform: translate(0, 0) rotate(0deg); }
      50%  { transform: translate(200px, -150px) rotate(180deg); }
      100% { transform: translate(0, 0) rotate(360deg); }
    }

    /* Mobile Blobs Optimization */
    @media (max-width: 640px) {
      .g-blob-1 { width: 400px; height: 400px; top: -100px; left: -100px; }
      .g-blob-2 { width: 350px; height: 350px; right: -80px; }
      .g-blob-3 { width: 300px; height: 300px; left: 5%; }
      .g-blob-4 { width: 280px; height: 280px; bottom: 5vh; }
      .g-blob-5 { width: 250px; height: 250px; bottom: -80px; }
      .g-blob { filter: blur(40px); } /* Less blur for mejor performance */
    }

    #main-content { position: relative; z-index: 1; }
    footer { position: relative; z-index: 1; }

    /* ─── NEWSLETTER BLOG STYLES (PREMIUM) ─── */
    .blog-newsletter-bottom {
      padding: 4rem 6% 6rem;
      position: relative;
      z-index: 1;
    }
    .newsletter-wrapper {
      max-width: 780px;
      margin: 0 auto;
    }
    .newsletter-card {
      background: rgba(255,255,255,0.025);
      border: 1px solid rgba(255,255,255,0.08);
      border-radius: 28px;
      padding: 4rem 3.5rem;
      text-align: center;
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      position: relative;
      overflow: hidden;
    }
    .newsletter-card::before {
      content: '';
      position: absolute;
      top: 0; left: 0; right: 0;
      height: 2px;
      background: var(--grad);
    }
    .newsletter-card h2 {
      font-family: var(--ff-h);
      font-size: clamp(1.6rem, 3.5vw, 2.4rem);
      font-weight: 700;
      line-height: 1.15;
      margin-bottom: 1.2rem;
      color: var(--white);
    }
    .newsletter-desc {
      color: var(--dim) !important;
      font-size: 1rem !important;
      line-height: 1.7 !important;
      max-width: 480px;
      margin: 0 auto 2.5rem !important;
    }
    .newsletter-form-inline {
      display: flex;
      flex-direction: column;
      gap: 1rem;
      max-width: 420px;
      margin: 0 auto 1.5rem;
    }
    .newsletter-form-inline input,
    .newsletter-form-inline button {
      width: 100%;
      display: block;
    }
    .newsletter-form-inline input {
      flex: 1;
      background: rgba(255,255,255,0.04);
      border: 1px solid rgba(255,255,255,0.1);
      border-radius: 10px;
      padding: 1rem 1.25rem;
      color: var(--white);
      font-family: var(--ff-b);
      font-size: 0.95rem;
      outline: none;
      transition: border-color 0.3s ease;
    }
    .newsletter-form-inline input::placeholder {
      color: rgba(255,255,255,0.35);
    }
    .newsletter-form-inline input:focus {
      border-color: var(--orange);
    }
    .newsletter-form-inline button {
      background: var(--grad);
      color: #fff;
      border: none;
      border-radius: 10px;
      padding: 1rem 1.75rem;
      font-family: var(--ff-ui);
      font-weight: 700;
      font-size: 0.9rem;
      cursor: pointer;
      transition: transform 0.2s, opacity 0.2s;
      white-space: nowrap;
      letter-spacing: 0.01em;
    }
    .newsletter-form-inline button:hover {
      transform: translateY(-2px);
      opacity: 0.92;
    }
    .form-note {
      font-size: 0.78rem !important;
      color: rgba(255,255,255,0.3) !important;
      font-weight: 500;
      margin-bottom: 0 !important;
    }

    @media (max-width: 600px) {
      .newsletter-card {
        padding: 3rem 1.5rem;
        border-radius: 20px;
      }
      .newsletter-form-inline {
        flex-direction: column;
      }
      .newsletter-form-inline button {
        width: 100%;
      }
      .blog-newsletter-bottom {
        padding: 3rem 5% 5rem;
      }
    }