*{margin:0;padding:0;box-sizing:border-box}
    body{font-family:'Segoe UI',system-ui,-apple-system,sans-serif;background:#0a0a0a;color:#fff;line-height:1.6;min-height:100vh}
    body::before{content:'';position:fixed;inset:0;z-index:-1;
      background:
        radial-gradient(circle at 20% 80%, rgba(30,30,30,.8) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(40,40,40,.6) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(20,20,20,.8) 0%, transparent 50%)}
    .container{max-width:1400px;margin:0 auto;padding:0 2rem}

    /* Top Bar (como index, con burger) */
    .top-bar{position:sticky;top:0;z-index:100;background:rgba(15,15,15,.95);backdrop-filter:blur(20px);border-bottom:1px solid rgba(255,255,255,.08);padding:1rem 0}
    .top-bar-content{display:flex;justify-content:space-between;align-items:center;gap:1rem}
    .logo{display:flex;align-items:center;gap:.75rem;font-weight:700;font-size:1.25rem;
      background:linear-gradient(135deg,#fff,#aaa);-webkit-background-clip:text;-webkit-text-fill-color:transparent;text-decoration:none;white-space:nowrap}
    .top-nav{display:flex;gap:2rem}
    .top-nav a{color:#9ca3af;text-decoration:none;font-size:.95rem;font-weight:500;position:relative;padding:.5rem 0;transition:.3s}
    .top-nav a:hover{color:#fff}
    .user-menu{display:flex;align-items:center;gap:1.25rem}
    .user-avatar{width:2.2rem;height:2.2rem;border-radius:50%;background:linear-gradient(135deg,#333,#555);display:flex;align-items:center;justify-content:center;font-size:.9rem;border:2px solid rgba(255,255,255,.1)}

    /* Burger + menú móvil */
    .burger{display:none;background:none;border:none;color:#fff;font-size:1.4rem;cursor:pointer}
    .mobile-menu{display:none;flex-direction:column;background:rgba(15,15,15,.97);position:fixed;top:0;left:0;right:0;padding:1.5rem;z-index:99}
    .mobile-menu a{color:#fff;text-decoration:none;padding:.8rem 0;font-size:1.05rem;border-bottom:1px solid rgba(255,255,255,.08)}
    body.menu-open{overflow:hidden}
    body.menu-open .mobile-menu{display:flex}

    /* Header de categoría + buscador local */
    .header{text-align:center;padding:3rem 0 1.5rem}
    .header h1{font-size:2.4rem;font-weight:800;margin-bottom:.5rem;letter-spacing:-.02em;
      background:linear-gradient(135deg,#fff 0%, #aaa 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
    .header p{color:#9ca3af;font-size:1rem}
    .search-filter-container{display:flex;flex-direction:column;gap:1rem;margin:1.6rem 0 2rem}
    .search-container{position:relative;width:100%}
    .search-input{width:100%;background:rgba(20,20,20,.8);border:1px solid rgba(255,255,255,.1);border-radius:1rem;
      padding:1rem 1.5rem 1rem 3rem;font-size:1rem;color:#fff;outline:none;backdrop-filter:blur(10px)}
    .search-icon{position:absolute;left:1.5rem;top:50%;transform:translateY(-50%);color:#6b7280}

    /* Chips de otras categorías (enlaces) */
    .chips{display:flex;flex-wrap:wrap;gap:.6rem;justify-content:center}
    .chip{background:rgba(20,20,20,.8);color:#9ca3af;padding:.6rem 1rem;border-radius:2rem;font-size:.85rem;border:1px solid rgba(255,255,255,.1);text-decoration:none}
    .chip.active,.chip:hover{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.3)}

    /* Grid como index (3 cols ≥1024; forzado 3 en 1280+) */
    .tools-grid{display:grid;grid-template-columns:1fr;gap:1.2rem}
    @media(min-width:640px){.tools-grid{grid-template-columns:repeat(2,1fr)}}
    @media(min-width:1024px){.tools-grid{grid-template-columns:repeat(3,1fr)}}
    @media(min-width:1280px){.tools-grid{grid-template-columns:repeat(3,1fr)}}

    /* Card compacta (igual index) */
    .card{background:rgba(20,20,20,.7);border-radius:1rem;padding:1rem;border:1px solid rgba(255,255,255,.08);position:relative;transition:.25s;cursor:pointer}
    .card:hover{transform:translateY(-4px);border-color:rgba(255,255,255,.2)}
    .card-header{display:flex;align-items:center;margin-bottom:.6rem;gap:.75rem}
    .card-icon{background:rgba(255,255,255,.05);padding:.5rem;border-radius:.8rem;width:2.5rem;height:2.5rem;display:flex;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,.1);overflow:hidden}
    .card-icon .ico{width:1.3rem;height:1.3rem;object-fit:contain}
    .card-title{font-weight:700;font-size:1rem;line-height:1.2}
    .card-domain{color:#9ca3af;font-size:.72rem;margin-top:.1rem}
    .card-description{color:#9ca3af;font-size:.86rem;margin:.5rem 0 .7rem;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
    .card-footer{display:flex;justify-content:space-between;align-items:center;gap:.75rem;font-size:.8rem;margin-top:.1rem}
    .card-category{background:rgba(255,255,255,.06);padding:.35rem .7rem;border-radius:999px;color:#d1d5db;font-weight:500}
    .ext-btn{position:absolute;top:.6rem;right:.6rem;width:32px;height:32px;border-radius:.6rem;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);color:#d1d5db;transition:.2s}
    .ext-btn:hover{color:#fff;border-color:rgba(255,255,255,.25);background:rgba(255,255,255,.1);transform:translateY(-1px)}
    .read-more{display:inline-block;font-size:.82rem;font-weight:600;text-decoration:none;padding:.45rem .9rem;border-radius:999px;border:1px solid rgba(255,255,255,.1);background:rgba(255,255,255,.06);color:#e5e7eb;transition:.2s}
    .read-more:hover{color:#fff;border-color:rgba(255,255,255,.25);background:rgba(255,255,255,.1)}

    /* Footer simple */
    footer{margin-top:3rem;padding:2rem 0;border-top:1px solid rgba(255,255,255,.08);text-align:center;color:#6b7280;font-size:.9rem}

    /* Responsive mínimos */
    @media(max-width:768px){
      .container{padding:0 1.25rem}
      .top-nav,.user-menu{display:none}
      .burger{display:block}
    }

.user-avatar i {
  color: #fff;
}