:root {
    --bg: #0a0a12;
    --surface: #12121f;
    --surface-2: #1a1a2e;
    --text: #e8e8f0;
    --muted: #9a9ab0;
    --accent: #4f8cff;
    --accent-2: #00d4ff;
    --red: #ff4d5a;
    --border: rgba(255,255,255,.08);
    --radius: 14px;
  }
  * { margin: 0; padding: 0; box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body {
    background: var(--bg); color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Inter", sans-serif;
    line-height: 1.6; overflow-x: hidden;
  }
  .wrap { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

  nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    background: rgba(10,10,18,.75); backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
  }
  .nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
  .logo { font-weight: 800; font-size: 1.2rem; display: flex; align-items: center; gap: 8px; }
  .logo span {
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text; background-clip: text; color: transparent;
  }
  .nav-links { display: flex; gap: 26px; align-items: center; }
  .nav-links a { color: var(--muted); text-decoration: none; font-size: .95rem; transition: color .2s; }
  .nav-links a:hover { color: var(--text); }

  /* ---- Menú hamburguesa (solo móvil) ---- */
  .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;
  }
  /* El checkbox se oculta visualmente pero SIGUE siendo marcable:
     display:none / hidden rompen el :checked y el menú no abre.
     No usar pointer-events:none (algunos navegadores no lo togglean). */
  .menu-toggle {
    position: absolute; left: -9999px; width: 1px; height: 1px;
    opacity: 0; margin: 0;
  }
  .menu-btn {
    display: none; cursor: pointer; padding: 10px; margin-left: auto;
    border-radius: 10px; border: 1px solid var(--border); background: var(--surface);
  }
  .menu-icon, .menu-icon::before, .menu-icon::after {
    display: block; width: 22px; height: 2px; border-radius: 2px;
    background: var(--text); transition: transform .25s ease, opacity .2s ease;
  }
  .menu-icon { position: relative; }
  .menu-icon::before, .menu-icon::after { content: ""; position: absolute; left: 0; }
  .menu-icon::before { top: -7px; }
  .menu-icon::after { top: 7px; }

  .btn {
    display: inline-block; padding: 12px 26px; border-radius: 999px;
    font-weight: 600; font-size: .95rem; text-decoration: none;
    transition: transform .15s ease, box-shadow .15s ease; cursor: pointer; border: none;
  }
  .btn-primary {
    background: linear-gradient(90deg, var(--accent), var(--accent-2)); color: #fff;
    box-shadow: 0 4px 24px rgba(79,140,255,.35);
  }
  .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(79,140,255,.5); }
  .btn-wa {
    background: #25d366; color: #fff; box-shadow: 0 4px 24px rgba(37,211,102,.35);
  }
  .btn-wa:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(37,211,102,.5); }
  .btn-mp {
    background: #009ee3; color: #fff; box-shadow: 0 4px 24px rgba(0,158,227,.35);
  }
  .btn-mp:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(0,158,227,.5); }
  .btn-pair { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; margin-top: 18px; }

  header { padding: 76px 0 40px; position: relative; }
  .glow {
    position: absolute; top: -160px; left: 50%; transform: translateX(-50%);
    width: min(800px, 100vw); height: 460px; border-radius: 50%;
    background: radial-gradient(closest-side, rgba(79,140,255,.22), transparent);
    pointer-events: none;
  }
  .hero { text-align: center; position: relative; }
  .badge {
    display: inline-block; padding: 6px 16px; border-radius: 999px;
    border: 1px solid var(--border); background: var(--surface);
    color: var(--accent-2); font-size: .85rem; margin-bottom: 24px;
  }
  .badge b { color: var(--accent-2); font-weight: 600; }
  h1 { font-size: clamp(2.3rem, 6vw, 3.8rem); line-height: 1.1; font-weight: 800; letter-spacing: -.02em; margin-bottom: 20px; }
  h1 .grad { background: linear-gradient(90deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
  .sub { max-width: 580px; margin: 0 auto 36px; color: var(--muted); font-size: 1.15rem; }
  .sub-item { display: block; padding: 3px 0; }
  .sub-item + .sub-item { border-top: 1px solid var(--border); }
  .hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

  section { padding: 64px 0; }
  section#modalidades { padding-top: 28px; }
  .section-head { text-align: center; max-width: 640px; margin: 0 auto 52px; }
  h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); font-weight: 800; letter-spacing: -.01em; margin-bottom: 14px; }
  .section-head p { color: var(--muted); font-size: 1.05rem; }

  .grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
  /* Fila de 4 servicios compactos: visibles de un vistazo (sin scroll) */
  .services-row {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
    max-width: 900px;
    margin: 0 auto;
  }
  .mini-card {
    display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center;
    gap: 8px; padding: 22px 14px; text-decoration: none;
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); color: var(--text);
    transition: transform .2s ease, border-color .2s ease;
    min-height: 120px;
  }
  .mini-card:hover { transform: translateY(-4px); border-color: var(--accent); }
  .mini-icon { font-size: 1.8rem; line-height: 1; }
  .mini-name { font-weight: 600; font-size: .98rem; line-height: 1.25; min-height: 2.5em; }
  /* Máximo 2 columnas (para bloques de 4 tarjetas) */
  .grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); max-width: 760px; margin-left: auto; margin-right: auto; }
  .card {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 28px;
    transition: transform .2s ease, border-color .2s ease;
  }
  .card:hover { transform: translateY(-4px); border-color: rgba(79,140,255,.4); }
  .card .icon {
    width: 44px; height: 44px; border-radius: 10px; display: flex; align-items: center;
    justify-content: center; font-size: 1.3rem; margin-bottom: 18px;
    background: linear-gradient(135deg, rgba(79,140,255,.25), rgba(0,212,255,.15));
  }
  .card h3 { font-size: 1.05rem; margin-bottom: 8px; }
  .card p { color: var(--muted); font-size: .95rem; }

  /* precios */
  .pricing { display: grid; grid-template-columns: minmax(0, 440px); justify-content: center; gap: 24px; max-width: 780px; margin: 0 auto; }
  .price-card {
    background: var(--surface); border: 1px solid var(--border); border-radius: 20px;
    padding: 36px 30px; position: relative; text-align: left;
  }
  .price-card.featured { border-color: var(--accent); box-shadow: 0 0 40px rgba(79,140,255,.15); }
  .price-card .tag {
    position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    font-size: .75rem; font-weight: 700; padding: 4px 14px; border-radius: 999px; white-space: nowrap;
  }
  .price-card h3 { font-size: 1.15rem; margin-bottom: 6px; }
  .price { font-size: 2.2rem; font-weight: 800; margin: 10px 0 4px; }
  .price small { font-size: .9rem; font-weight: 400; color: var(--muted); }
  .price-card ul { list-style: none; margin: 20px 0 28px; }
  .price-card li { color: var(--muted); font-size: .95rem; padding: 7px 0; border-bottom: 1px solid var(--border); }
  .price-card li:last-child { border-bottom: none; }
  .price-card li::before { content: "✓ "; color: var(--accent-2); font-weight: 700; }
  .price-card .btn { width: 100%; text-align: center; }

  /* FAQ */
  .faq { max-width: 720px; margin: 0 auto; }
  .faq details {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 18px 22px; margin-bottom: 12px;
  }
  .faq summary { cursor: pointer; font-weight: 600; }
  .faq details p { color: var(--muted); margin-top: 10px; font-size: .95rem; }

  .cta {
    background: linear-gradient(135deg, rgba(79,140,255,.15), rgba(0,212,255,.08));
    border: 1px solid var(--border); border-radius: 24px;
    text-align: center; padding: 64px 24px;
  }
  .cta p { color: var(--muted); margin-bottom: 28px; max-width: 520px; margin-left: auto; margin-right: auto; }

  footer { border-top: 1px solid var(--border); padding: 32px 0 64px; color: var(--muted); font-size: .9rem; }
  .foot { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
  footer a { color: var(--muted); text-decoration: none; }
  footer a:hover { color: var(--text); }
  .foot .credit a.brand { color: var(--text); font-weight: 600; text-decoration: none; border-bottom: 1px dotted var(--muted); }
  .foot .credit a.brand:hover { border-bottom-color: var(--text); }

  @media (max-width: 820px) {
    .grid { grid-template-columns: 1fr; }
    .grid-2 { grid-template-columns: 1fr; max-width: none; }
    .services-row { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
    .pricing { grid-template-columns: 1fr; }

    /* Evita scroll horizontal en Android */
    html, body { max-width: 100%; overflow-x: hidden; }
    .wrap { padding: 0 16px; }
    .glow { width: 100vw; height: 320px; }
    img, video, iframe { max-width: 100%; height: auto; }
    .cta { padding: 32px 20px !important; }
    .cta p, .cta ul { max-width: 100% !important; }
    .pricing, .price-card { max-width: 100%; }

    /* Menú hamburguesa */
    .menu-btn { display: block; }
    .nav-links {
      position: fixed; top: 64px; left: 0; right: 0;
      flex-direction: column; gap: 0; align-items: stretch;
      background: rgba(10,10,18,.97); backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border);
      max-height: 0; overflow: hidden; visibility: hidden;
      transition: max-height .3s ease, visibility .3s ease;
    }
    .nav-links a {
      padding: 16px 24px; font-size: 1rem;
      border-top: 1px solid var(--border);
    }
    .nav-links .btn {
      margin: 14px 24px 22px; text-align: center; border-top: none;
    }
    #menu-toggle:checked ~ .nav-links {
      max-height: 80vh; visibility: visible; overflow-y: auto;
    }
    #menu-toggle:checked ~ .menu-btn .menu-icon { background: transparent; }
    #menu-toggle:checked ~ .menu-btn .menu-icon::before { transform: translateY(7px) rotate(45deg); }
    #menu-toggle:checked ~ .menu-btn .menu-icon::after { transform: translateY(-7px) rotate(-45deg); }
  }

/* ---- Artículos / blog ---- */
.article-hero { padding: 140px 0 30px; }
.article-hero .back { color: var(--muted); text-decoration: none; font-size: .9rem; display: inline-block; margin-bottom: 18px; }
.article-hero .back:hover { color: var(--text); }
.article-hero h1 { font-size: clamp(1.9rem, 5vw, 3rem); line-height: 1.15; letter-spacing: -.02em; margin-bottom: 16px; }
.article-hero .lead { color: var(--muted); font-size: 1.15rem; max-width: 720px; }
.article-hero .meta { color: var(--muted); font-size: .85rem; margin-top: 16px; opacity: .8; }
.article { max-width: 760px !important; padding-top: 20px; padding-bottom: 60px; }
.article h2 { font-size: 1.6rem; margin: 38px 0 14px; }
.article h3 { font-size: 1.2rem; margin: 26px 0 10px; }
.article p { color: #cfcfe0; margin: 14px 0; }
.article ul, .article ol { color: #cfcfe0; margin: 14px 0 14px 22px; }
.article li { padding: 4px 0; }
.article a { color: var(--accent-2); }
.article code { background: var(--surface-2); padding: 2px 7px; border-radius: 6px; font-size: .9em; }
.article pre { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; overflow-x: auto; margin: 18px 0; }
.article pre code { background: none; padding: 0; }
.article blockquote { border-left: 3px solid var(--accent); padding: 6px 0 6px 18px; margin: 20px 0; color: var(--muted); font-style: italic; }
.article table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: .95rem; }
.article th, .article td { border: 1px solid var(--border); padding: 10px 12px; text-align: left; }
.article th { background: var(--surface-2); }
.article .tip { background: linear-gradient(135deg, rgba(79,140,255,.12), rgba(0,212,255,.06)); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 22px; margin: 22px 0; }
.article .tip b { color: var(--text); }
.article .cta { margin-top: 46px; }

/* tarjetas de guías */
.guides { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.guide-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; text-decoration: none; color: inherit; transition: transform .2s, border-color .2s; display: block; }
.guide-card:hover { transform: translateY(-4px); border-color: rgba(79,140,255,.4); }
.guide-card .thumb { width: 100%; aspect-ratio: 16/9; object-fit: cover; display: block; background: var(--surface-2); }
.guide-card .body { padding: 18px 20px 22px; }
.guide-card h3 { font-size: 1rem; margin-bottom: 8px; }
.guide-card p { color: var(--muted); font-size: .9rem; }
@media (max-width: 820px) { .guides { grid-template-columns: 1fr; } }
@media (max-width: 380px) { .services-row { grid-template-columns: 1fr; } }

  /* Bloque de contacto (landing simple) */
  .contact-box {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 34px 24px; margin: 30px 0;
  }

  /* ============ GALERÍA DE OBRAS ============ */
  .galeria-filtros {
    display: flex; flex-wrap: wrap; gap: 10px; justify-content: center;
    margin-bottom: 32px;
  }
  .filtro {
    background: var(--surface); border: 1px solid var(--border);
    color: var(--muted); padding: 9px 18px; border-radius: 100px;
    font-size: .9rem; cursor: pointer; transition: all .2s;
    font-family: inherit;
  }
  .filtro:hover { color: var(--text); border-color: rgba(79,140,255,.4); }
  .filtro.activo {
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #fff; border-color: transparent; font-weight: 600;
  }

  .galeria-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px;
  }
  .gal-item {
    position: relative; overflow: hidden; border-radius: var(--radius);
    background: var(--surface-2); cursor: pointer; aspect-ratio: 4/3;
    border: 1px solid var(--border); transition: transform .25s, border-color .25s;
  }
  .gal-item:hover { transform: translateY(-4px); border-color: rgba(79,140,255,.5); }
  .gal-item img {
    width: 100%; height: 100%; object-fit: cover; display: block;
    transition: transform .4s;
  }
  .gal-item:hover img { transform: scale(1.06); }
  .gal-item .gal-cap {
    position: absolute; inset: auto 0 0 0; padding: 26px 14px 12px;
    background: linear-gradient(to top, rgba(10,10,18,.92), transparent);
    color: #fff; font-size: .85rem; font-weight: 600;
    opacity: 0; transition: opacity .25s;
  }
  .gal-item:hover .gal-cap { opacity: 1; }
  .gal-item.oculto { display: none; }

  /* Lightbox */
  .lightbox {
    position: fixed; inset: 0; z-index: 999; display: none;
    background: rgba(6,6,12,.96); padding: 24px;
    align-items: center; justify-content: center;
  }
  .lightbox.abierto { display: flex; }
  .lightbox img {
    max-width: 94vw; max-height: 88vh; object-fit: contain;
    border-radius: 10px; box-shadow: 0 20px 80px rgba(0,0,0,.7);
  }
  .lb-cerrar {
    position: absolute; top: 18px; right: 24px; font-size: 2.4rem;
    color: #fff; background: none; border: 0; cursor: pointer; line-height: 1;
    opacity: .75;
  }
  .lb-cerrar:hover { opacity: 1; }
  .lb-prev, .lb-next {
    position: absolute; top: 50%; transform: translateY(-50%);
    background: rgba(255,255,255,.1); border: 0; color: #fff;
    font-size: 2rem; width: 54px; height: 54px; border-radius: 50%;
    cursor: pointer; display: flex; align-items: center; justify-content: center;
  }
  .lb-prev { left: 20px; } .lb-next { right: 20px; }
  .lb-prev:hover, .lb-next:hover { background: rgba(255,255,255,.22); }

  @media (max-width: 820px) {
    .galeria-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .lb-prev, .lb-next { width: 44px; height: 44px; font-size: 1.5rem; }
  }
  @media (max-width: 480px) {
    .galeria-grid { grid-template-columns: 1fr; }
  }