/* =========================================================
       PALETA REFINADA — Opción D
       ========================================================= */
    :root {
      --terracota:   #D75A2C; /* naranja terracota urbano */
      --concreto:    #8E8A87; /* gris cálido concreto */
      --grafito:     #1F1D1B; /* negro grafito */
      --cal:         #FAF8F5; /* cal / papel */
      --arena:       #EFEAE2; /* arena tenue para fondos */
      --arena-mid:   #E4DED4; /* arena media */
      --arena-hard:  #D8CFC2; /* borde arena */
      --muted:       #6E6A66; /* texto secundario */

      --max: 1280px;
      --gutter: 24px;
      --serif-display: 'DM Serif Display', Georgia, serif;
      --serif: 'Fraunces', Georgia, serif;
      --sans:  'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    }

    /* =========================================================
       RESET
       ========================================================= */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
    body {
      font-family: var(--sans);
      font-size: 17px;
      line-height: 1.65;
      color: var(--grafito);
      background: var(--cal);
      overflow-x: hidden;
    }
    a { color: inherit; text-decoration: none; }
    img { max-width: 100%; display: block; }
    button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
    ::selection { background: var(--terracota); color: var(--cal); }

    .container {
      max-width: var(--max);
      margin: 0 auto;
      padding: 0 64px;
    }
    @media (max-width: 768px) { .container { padding: 0 24px; } }

    /* =========================================================
       TIPOGRAFÍA
       ========================================================= */
    .eyebrow {
      font-family: var(--sans);
      font-size: 12px;
      font-weight: 600;
      color: var(--terracota);
      text-transform: uppercase;
      letter-spacing: 2.5px;
      margin-bottom: 28px;
      display: inline-block;
    }
    h1, h2, h3 {
      font-family: var(--serif);
      font-weight: 500;
      letter-spacing: -0.015em;
      line-height: 1.1;
      color: var(--grafito);
    }
    h1 { font-size: clamp(44px, 7vw, 96px); font-weight: 400; line-height: 1.02; }
    h2.section-title { font-size: clamp(34px, 4.4vw, 64px); margin-bottom: 28px; }
    h3 { font-size: clamp(22px, 2.4vw, 30px); margin-bottom: 12px; }
    p { color: var(--grafito); margin-bottom: 20px; max-width: 64ch; }
    p.lead {
      font-family: var(--serif);
      font-size: clamp(20px, 2vw, 26px);
      font-weight: 400;
      line-height: 1.45;
      color: var(--grafito);
      max-width: 720px;
    }
    .muted { color: var(--muted); }

    /* =========================================================
       LOGO — Opción D (tipografía protagonista + isotipo mínimo)
       ========================================================= */
    .logo {
      display: inline-flex;
      align-items: center;
      gap: 12px;
    }
    .logo .isotipo {
      display: inline-flex;
      align-items: flex-end;
      gap: 3px;
      height: 18px;
    }
    .logo .isotipo .b1 { width: 6px; height: 14px; background: var(--concreto); }
    .logo .isotipo .b2 { width: 6px; height: 18px; background: var(--terracota); }
    .logo .wordmark {
      font-family: var(--serif-display);
      font-size: 22px;
      font-weight: 400;
      color: var(--grafito);
      letter-spacing: -0.01em;
      line-height: 1;
    }
    .logo .tagline {
      display: block;
      font-family: var(--serif);
      font-size: 13px;
      font-weight: 400;
      font-style: italic;
      color: var(--muted);
      letter-spacing: 0.3px;
      margin-top: 4px;
      padding-top: 4px;
      border-top: 1px solid var(--arena-hard);
    }

    /* logo grande para hero */
    .logo-hero { display: inline-flex; align-items: flex-end; gap: 24px; flex-wrap: wrap; }
    .logo-hero .isotipo { height: 64px; gap: 8px; }
    .logo-hero .isotipo .b1 { width: 22px; height: 48px; }
    .logo-hero .isotipo .b2 { width: 22px; height: 64px; }
    .logo-hero .wordmark-block { display: flex; flex-direction: column; }
    .logo-hero .wordmark { font-size: clamp(48px, 7vw, 96px); }
    .logo-hero .tagline {
      font-size: clamp(20px, 2vw, 26px);
      letter-spacing: 0.3px;
      margin-top: 12px;
      padding-top: 14px;
    }

    /* =========================================================
       HEADER / NAV
       ========================================================= */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(250, 248, 245, 0.92);
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--arena-mid);
    }
    .site-header .container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding-top: 18px;
      padding-bottom: 18px;
    }
    .nav-menu {
      display: flex;
      gap: 36px;
      list-style: none;
    }
    .nav-menu a {
      font-size: 13px;
      font-weight: 500;
      color: var(--grafito);
      letter-spacing: 1.2px;
      text-transform: uppercase;
      transition: color 0.2s;
      position: relative;
    }
    .nav-menu a:hover { color: var(--terracota); }
    .nav-cta {
      font-size: 13px;
      font-weight: 500;
      letter-spacing: 1.2px;
      text-transform: uppercase;
      padding: 10px 18px;
      border: 1px solid var(--grafito);
      color: var(--grafito);
      transition: all 0.2s;
    }
    .nav-cta:hover { background: var(--grafito); color: var(--cal); }
    .nav-toggle { display: none; }

    @media (max-width: 900px) {
      .nav-menu, .nav-cta { display: none; }
      .nav-toggle {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        font-size: 12px;
        letter-spacing: 1.5px;
        text-transform: uppercase;
        color: var(--grafito);
      }
      .nav-toggle .bars { display: inline-flex; flex-direction: column; gap: 4px; }
      .nav-toggle .bars span { width: 22px; height: 1.5px; background: var(--grafito); }
      .nav-menu.open {
        display: flex;
        flex-direction: column;
        gap: 18px;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--cal);
        padding: 24px;
        border-bottom: 1px solid var(--arena-mid);
      }
    }

    /* =========================================================
       HERO — wordmark protagonista
       ========================================================= */
    .hero {
      padding: clamp(80px, 14vh, 160px) 0 clamp(80px, 12vh, 140px);
      position: relative;
      overflow: hidden;
    }
    .hero .grid {
      display: grid;
      grid-template-columns: 1fr 280px;
      gap: 80px;
      align-items: end;
    }
    .hero-eyebrow {
      display: inline-block;
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 3px;
      text-transform: uppercase;
      color: var(--terracota);
      margin-bottom: 32px;
    }
    .hero-meta {
      border-left: 2px solid var(--terracota);
      padding-left: 24px;
    }
    .hero-meta .label {
      font-size: 10px;
      font-weight: 600;
      letter-spacing: 2px;
      text-transform: uppercase;
      color: var(--muted);
      margin-bottom: 8px;
    }
    .hero-meta .value {
      font-family: var(--serif);
      font-size: 18px;
      color: var(--grafito);
      margin-bottom: 24px;
      line-height: 1.4;
    }
    .hero-meta .value:last-child { margin-bottom: 0; }
    @media (max-width: 900px) {
      .hero .grid { grid-template-columns: 1fr; gap: 48px; }
      .hero-meta { border-left: none; border-top: 2px solid var(--terracota); padding: 24px 0 0; }
    }

    /* =========================================================
       QUÉ HACEMOS — descripción
       ========================================================= */
    .que-hacemos {
      padding: clamp(80px, 12vh, 140px) 0;
      background: var(--arena);
      border-top: 1px solid var(--arena-hard);
      border-bottom: 1px solid var(--arena-hard);
    }
    .que-hacemos .grid {
      display: grid;
      grid-template-columns: 320px 1fr;
      gap: 80px;
      align-items: start;
    }
    .que-hacemos h2.section-title { color: var(--grafito); margin-bottom: 0; }
    .que-hacemos .descripcion p { font-size: 18px; line-height: 1.75; max-width: 64ch; }
    .que-hacemos .descripcion p strong { color: var(--terracota); font-weight: 500; }
    @media (max-width: 900px) {
      .que-hacemos .grid { grid-template-columns: 1fr; gap: 32px; }
    }

    /* =========================================================
       PILARES
       ========================================================= */
    .pilares {
      padding: clamp(80px, 12vh, 140px) 0;
    }
    .pilares-header { margin-bottom: 64px; max-width: 720px; }
    .pilares-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 0;
      border-top: 1px solid var(--arena-hard);
    }
    .pilar {
      padding: 48px 32px 56px;
      border-bottom: 1px solid var(--arena-hard);
      border-right: 1px solid var(--arena-hard);
      position: relative;
      transition: background 0.3s;
    }
    .pilar:last-child { border-right: none; }
    .pilar:hover { background: var(--arena); }
    .pilar .num {
      font-family: var(--sans);
      font-size: 11px;
      font-weight: 600;
      letter-spacing: 2px;
      color: var(--terracota);
      margin-bottom: 32px;
      display: block;
    }
    .pilar h3 {
      font-family: var(--serif-display);
      font-size: clamp(28px, 3vw, 40px);
      font-weight: 400;
      color: var(--grafito);
      margin-bottom: 20px;
      line-height: 1.05;
    }
    .pilar .descriptor {
      font-size: 15px;
      line-height: 1.55;
      color: var(--muted);
      margin-bottom: 32px;
    }
    .pilar .arrow {
      font-size: 13px;
      font-weight: 500;
      letter-spacing: 1px;
      text-transform: uppercase;
      color: var(--grafito);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: gap 0.2s, color 0.2s;
    }
    .pilar:hover .arrow { gap: 14px; color: var(--terracota); }
    @media (max-width: 800px) {
      .pilares-grid { grid-template-columns: 1fr; }
      .pilar { border-right: none; }
    }

    /* =========================================================
       NUESTRA EXPERIENCIA — texto sobre la firma + datos
       ========================================================= */
    .experiencia {
      padding: clamp(80px, 12vh, 140px) 0;
      background: var(--grafito);
      color: var(--cal);
    }
    .experiencia .eyebrow { color: var(--terracota); }
    .experiencia h2.section-title { color: var(--cal); }
    .experiencia .grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 64px;
      align-items: start;
    }
    .experiencia p {
      color: rgba(250, 248, 245, 0.82);
      font-size: 17px;
      line-height: 1.75;
      max-width: 56ch;
    }
    .datos {
      display: flex;
      flex-direction: column;
      gap: 0;
      border-top: 1px solid rgba(250, 248, 245, 0.15);
    }
    .dato {
      padding: 32px 0;
      border-bottom: 1px solid rgba(250, 248, 245, 0.15);
      display: grid;
      grid-template-columns: 140px 1fr;
      gap: 24px;
      align-items: baseline;
    }
    .dato .num {
      font-family: var(--serif-display);
      font-size: clamp(56px, 6vw, 88px);
      color: var(--terracota);
      line-height: 0.9;
    }
    .dato .label {
      font-family: var(--sans);
      font-size: 14px;
      font-weight: 400;
      color: rgba(250, 248, 245, 0.82);
      line-height: 1.55;
      letter-spacing: 0.3px;
    }
    @media (max-width: 900px) {
      .experiencia .grid { grid-template-columns: 1fr; gap: 48px; }
    }

    /* =========================================================
       SERVICIOS (tarjetas con foto + franja)
       ========================================================= */
    .servicios {
      padding: clamp(80px, 12vh, 140px) 0;
    }
    .servicios-header { max-width: 720px; margin-bottom: 56px; }
    .servicios-grupo { margin-top: 64px; }
    .servicios-grupo:first-of-type { margin-top: 0; }
    .grupo-titulo {
      font-family: var(--sans);
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 2.5px;
      text-transform: uppercase;
      color: var(--terracota);
      padding-bottom: 16px;
      margin-bottom: 28px;
      border-bottom: 1px solid var(--arena-hard);
    }
    .cards-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .card-servicio {
      position: relative;
      aspect-ratio: 3 / 2;
      overflow: hidden;
      display: block;
      text-decoration: none;
      background: var(--concreto);
    }
    .card-servicio:nth-child(3n+1) { background: var(--grafito); }
    .card-servicio:nth-child(3n+2) { background: var(--concreto); }
    .card-servicio:nth-child(3n+3) { background: var(--terracota); }
    .card-bg {
      position: absolute; inset: 0;
      width: 100%; height: 100%;
      object-fit: cover;
      transition: transform 0.6s ease;
    }
    .card-servicio:hover .card-bg { transform: scale(1.05); }
    .card-overlay {
      position: absolute;
      left: 0; right: 0; top: 50%;
      transform: translateY(-50%);
      padding: 22px 24px;
      background: rgba(250, 248, 245, 0.88);
      text-align: center;
      font-family: var(--serif);
      line-height: 1.28;
      backdrop-filter: blur(2px);
      transition: background 0.35s ease;
    }
    .card-l1, .card-l2 { display: block; font-size: clamp(15px, 1.3vw, 19px); }
    .card-l1 {
      color: var(--grafito);
      font-weight: 400;
    }
    .card-l2 {
      color: var(--terracota);
      font-weight: 600;
    }
    .card-servicio:hover .card-overlay {
      background: rgba(215, 90, 44, 0.92);
    }
    .card-servicio:hover .card-l1,
    .card-servicio:hover .card-l2 {
      color: var(--cal);
    }
    @media (max-width: 900px) {
      .cards-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 560px) {
      .cards-grid { grid-template-columns: 1fr; }
    }

    /* =========================================================
       CLIENTES
       ========================================================= */
    .clientes {
      padding: clamp(80px, 12vh, 140px) 0;
      background: var(--arena);
      text-align: center;
      border-top: 1px solid var(--arena-hard);
      border-bottom: 1px solid var(--arena-hard);
    }
    .clientes h3 {
      font-family: var(--serif);
      font-size: clamp(32px, 4vw, 56px);
      font-weight: 400;
      color: var(--grafito);
      margin-bottom: 16px;
    }
    .clientes .stat {
      font-family: var(--serif);
      font-size: 18px;
      font-style: italic;
      color: var(--muted);
      margin-bottom: 64px;
    }
    .logos-row {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      align-items: center;
      gap: 48px;
      max-width: 1100px;
      margin: 0 auto;
    }
    .logo-link { display: inline-flex; align-items: center; }
    .logo-cliente {
      height: 48px;
      width: auto;
      max-width: 220px;
      object-fit: contain;
      opacity: 0.55;
      transition: opacity 0.3s;
    }
    .logo-cliente:hover {
      opacity: 1;
    }
    /* Texto de respaldo mientras no se cargan los archivos de logo */
    .logo-fallback {
      font-family: var(--serif);
      font-size: 14px;
      color: var(--muted);
      letter-spacing: 1px;
      text-transform: uppercase;
      padding: 14px 22px;
      border: 1px solid var(--arena-hard);
      text-decoration: none;
    }

    /* =========================================================
       INFORMACIÓN DE INTERÉS
       ========================================================= */
    .info {
      padding: clamp(80px, 12vh, 140px) 0;
    }
    .info-header { max-width: 720px; margin-bottom: 64px; }
    .info-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 64px;
    }
    .info-col h4 {
      font-family: var(--sans);
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 2px;
      text-transform: uppercase;
      color: var(--terracota);
      margin-bottom: 24px;
    }
    .recurso {
      display: flex;
      align-items: baseline;
      gap: 16px;
      padding: 20px 0;
      border-bottom: 1px solid var(--arena-mid);
      transition: padding-left 0.2s, color 0.2s;
    }
    .recurso:hover { padding-left: 8px; color: var(--terracota); }
    .recurso .icon {
      font-family: var(--serif-display);
      font-size: 18px;
      color: var(--concreto);
      flex-shrink: 0;
    }
    .recurso .titulo {
      font-family: var(--serif);
      font-size: 18px;
      line-height: 1.4;
      color: var(--grafito);
      transition: color 0.2s;
    }
    .recurso:hover .titulo { color: var(--terracota); }
    @media (max-width: 800px) {
      .info-grid { grid-template-columns: 1fr; gap: 32px; }
    }

    /* =========================================================
       CONTÁCTENOS
       ========================================================= */
    .contacto {
      padding: clamp(80px, 12vh, 140px) 0;
      background: var(--arena);
      border-top: 1px solid var(--arena-hard);
    }
    .contacto .grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 80px;
      align-items: start;
    }
    .contacto h2.section-title { margin-bottom: 16px; }
    .contacto .lead { margin-bottom: 40px; max-width: 480px; }
    .form .field { margin-bottom: 20px; }
    .form label {
      display: block;
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 1.5px;
      text-transform: uppercase;
      color: var(--muted);
      margin-bottom: 8px;
    }
    .form input, .form textarea {
      width: 100%;
      padding: 14px 16px;
      font-family: var(--sans);
      font-size: 16px;
      color: var(--grafito);
      background: var(--cal);
      border: 1px solid var(--arena-hard);
      border-radius: 0;
      transition: border-color 0.2s;
    }
    .form input:focus, .form textarea:focus {
      outline: none;
      border-color: var(--terracota);
    }
    .form textarea { resize: vertical; min-height: 100px; }
    .form button[type="submit"] {
      background: var(--grafito);
      color: var(--cal);
      padding: 16px 32px;
      font-size: 13px;
      font-weight: 500;
      letter-spacing: 2px;
      text-transform: uppercase;
      transition: background 0.2s;
      margin-top: 8px;
    }
    .form button[type="submit"]:hover { background: var(--terracota); }
    .contacto-info { background: var(--cal); padding: 40px; border: 1px solid var(--arena-hard); }
    .contacto-info h4 {
      font-family: var(--sans);
      font-size: 11px;
      font-weight: 600;
      letter-spacing: 2px;
      text-transform: uppercase;
      color: var(--terracota);
      margin-bottom: 20px;
    }
    .contacto-info .item {
      padding: 16px 0;
      border-bottom: 1px solid var(--arena-mid);
    }
    .contacto-info .item:last-child { border-bottom: none; }
    .contacto-info .label {
      font-size: 11px;
      letter-spacing: 1.5px;
      text-transform: uppercase;
      color: var(--muted);
      margin-bottom: 4px;
    }
    .contacto-info .value {
      font-family: var(--serif);
      font-size: 17px;
      color: var(--grafito);
      line-height: 1.4;
    }
    .contacto-info .value a:hover { color: var(--terracota); }
    @media (max-width: 900px) {
      .contacto .grid { grid-template-columns: 1fr; gap: 48px; }
    }

    /* =========================================================
       FOOTER
       ========================================================= */
    .site-footer {
      background: var(--grafito);
      color: var(--cal);
      padding: 80px 0 32px;
    }
    .site-footer .grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 64px;
      margin-bottom: 64px;
    }
    .site-footer .logo .wordmark { color: var(--cal); }
    .site-footer .logo .tagline { color: rgba(250, 248, 245, 0.5); border-top-color: rgba(250, 248, 245, 0.2); }
    .site-footer .logo .isotipo .b1 { background: rgba(250, 248, 245, 0.4); }
    .site-footer p, .site-footer a { color: rgba(250, 248, 245, 0.75); font-size: 14px; line-height: 1.7; }
    .site-footer h5 {
      font-family: var(--sans);
      font-size: 11px;
      font-weight: 600;
      letter-spacing: 2px;
      text-transform: uppercase;
      color: rgba(250, 248, 245, 0.5);
      margin-bottom: 16px;
    }
    .site-footer .col-info p { margin-top: 24px; }
    .footer-links { list-style: none; display: flex; flex-direction: column; gap: 10px; }
    .footer-links a:hover { color: var(--terracota); }
    .social-bar {
      display: flex;
      gap: 18px;
      margin-top: 28px;
      align-items: center;
    }
    .social-bar a {
      width: 34px; height: 34px;
      display: inline-flex; align-items: center; justify-content: center;
      border: 1px solid rgba(250, 248, 245, 0.2);
      border-radius: 50%;
      color: rgba(250, 248, 245, 0.7);
      transition: color 0.2s, border-color 0.2s, transform 0.2s;
    }
    .social-bar a:hover {
      color: var(--terracota);
      border-color: var(--terracota);
      transform: translateY(-2px);
    }
    .social-bar svg { width: 14px; height: 14px; }
    .footer-bottom {
      border-top: 1px solid rgba(250, 248, 245, 0.15);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 12px;
      color: rgba(250, 248, 245, 0.5);
      letter-spacing: 0.5px;
    }
    @media (max-width: 800px) {
      .site-footer .grid { grid-template-columns: 1fr; gap: 32px; }
    }