:root {
    --teal: #2BBFB3;
    --teal-dark: #1a9990;
    --black: #111111;
    --off-white: #F2F2EF;
    --warm-gray: #E8E8E4;
    --mid-gray: #9A9A96;
    --text: #222222;
  }

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

  html { scroll-behavior: smooth; }

  body {
    font-family: 'Open Sans', sans-serif;
    background: var(--off-white);
    color: var(--text);
    overflow-x: hidden;
  }

  /* ── NAV ── */
  nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    display: flex; align-items: center; justify-content: space-between;
    padding: 1.2rem 4rem;
    background: rgba(242,242,239,0.88);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0,0,0,0.07);
  }
  .nav-logo {
    font-family: 'Anton', sans-serif;
    font-size: 2rem;
    letter-spacing: 0.04em;
    color: var(--black);
    text-decoration: none;
  }
  .nav-logo span { color: var(--teal); }
  .nav-links { display: flex; gap: 2.5rem; list-style: none; }
  .nav-links a {
    font-family: 'Open Sans', sans-serif;
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--black);
    opacity: 0.7;
    transition: opacity .2s, color .2s;
  }
  .nav-links a:hover { opacity: 1; color: var(--teal); }
  .nav-cta {
    background: var(--black); color: var(--off-white) !important;
    padding: 0.55rem 1.4rem; border-radius: 2px;
    opacity: 1 !important;
    transition: background .2s !important;
  }
  .nav-cta:hover { background: var(--teal) !important; color: var(--black) !important; }

  .nav-toggle {
    display: none;
    background: none; border: none; cursor: pointer;
    padding: 0.4rem; margin: 0;
    flex-direction: column; justify-content: center; gap: 5px;
    z-index: 101;
  }
  .nav-toggle span {
    display: block; width: 24px; height: 2px;
    background: var(--black);
    transition: transform .2s, opacity .2s;
  }
  .nav-toggle.is-active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.is-active span:nth-child(2) { opacity: 0; }
  .nav-toggle.is-active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  /* ── HERO ── */
  #hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 9rem 4rem 4rem;
    position: relative;
    overflow: hidden;
  }
  .hero-bg-shape {
    position: absolute; top: -120px; right: -80px;
    width: 600px; height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(43,191,179,0.12) 0%, transparent 70%);
    pointer-events: none;
  }
  .hero-bg-lines {
    position: absolute; bottom: 0; left: 0;
    width: 340px; opacity: 0.12;
    pointer-events: none;
  }
  .hero-logo-row {
    position: relative; z-index: 2;
    display: flex; justify-content: center;
    margin-bottom: 3.5rem;
  }
  .hero-content {
    position: relative; z-index: 2;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: stretch;
  }
  .hero-left-title { position: relative; z-index: 2; margin-bottom: 1.6rem; }
  .hero-left { position: relative; z-index: 2; }
  .hero-eyebrow {
    display: inline-flex; align-items: center; gap: 0.6rem;
    font-family: 'Open Sans', sans-serif;
    font-size: 0.75rem; font-weight: 700;
    letter-spacing: 0.18em; text-transform: uppercase;
    color: var(--teal); margin-bottom: 1.6rem;
  }
  .hero-eyebrow::before {
    content: ''; display: block;
    width: 32px; height: 2px; background: var(--teal);
  }
  h1 {
    font-family: 'Anton', sans-serif;
    font-size: clamp(5rem, 10vw, 9rem);
    line-height: 0.92;
    letter-spacing: 0.02em;
    color: var(--black);
  }
  h1 .accent { color: var(--teal); }
  .hero-sub {
    font-size: 1.15rem;
    font-weight: 300;
    line-height: 1.65;
    max-width: 62ch;
    color: #000000;
  }
  .hero-sub strong { font-weight: 500; color: #000000; }
  .hero-actions {
    margin-top: 2.8rem;
    display: flex; gap: 1rem; align-items: center; flex-wrap: wrap;
  }
  .btn-primary {
    background: var(--black); color: var(--off-white);
    padding: 0.9rem 2.2rem;
    font-family: 'Open Sans', sans-serif;
    font-size: 0.82rem; font-weight: 700;
    letter-spacing: 0.1em; text-transform: uppercase;
    text-decoration: none; border-radius: 2px;
    transition: background .2s, transform .2s;
    display: inline-block;
  }
  .btn-primary:hover { background: var(--teal); color: var(--black); transform: translateY(-2px); }
  .btn-ghost {
    color: var(--black);
    padding: 0.9rem 0;
    font-family: 'Open Sans', sans-serif;
    font-size: 0.82rem; font-weight: 700;
    letter-spacing: 0.1em; text-transform: uppercase;
    text-decoration: none; border-bottom: 2px solid var(--teal);
    transition: color .2s;
  }
  .btn-ghost:hover { color: var(--teal); }

  /* Popup: Libro */
  .book-overlay {
    position: fixed; inset: 0; background: rgba(17,17,17,0.86);
    display: flex; align-items: center; justify-content: center;
    z-index: 999; padding: 1.5rem;
    opacity: 0; visibility: hidden;
    transition: opacity .3s ease, visibility .3s ease;
  }
  .book-overlay.active { opacity: 1; visibility: visible; }
  .book-modal {
    position: relative;
    background: #FFFFFF;
    color: var(--black);
    max-width: 640px; width: 100%;
    padding: 2.4rem 2.4rem 2.2rem;
    border-radius: 22px 22px 22px 4px;
    border: 2px solid var(--teal);
    box-shadow: 0 0 0 1px rgba(43,191,179,0.25), 0 20px 60px rgba(0,0,0,0.35);
    transform: translateY(16px) scale(0.97);
    transition: transform .3s ease;
    display: flex; gap: 2rem; align-items: center;
  }
  .book-overlay.active .book-modal { transform: translateY(0) scale(1); }
  .book-modal-close {
    position: absolute; top: 0.9rem; right: 1.1rem;
    background: none; border: none; color: var(--mid-gray);
    font-size: 1.4rem; line-height: 1; cursor: pointer;
    transition: color .2s; z-index: 2;
  }
  .book-modal-close:hover { color: var(--teal); }
  .book-modal-cover {
    flex: 0 0 auto; width: 150px; border-radius: 3px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.25);
  }
  .book-modal-text { flex: 1 1 auto; min-width: 0; }
  .book-modal-eyebrow {
    font-family: 'Open Sans', sans-serif;
    font-size: 0.75rem; font-weight: 700;
    letter-spacing: 0.14em; text-transform: uppercase;
    color: var(--teal-dark); margin-bottom: 0.7rem;
  }
  .book-modal h3 {
    font-family: 'Anton', sans-serif;
    font-size: 1.6rem; font-weight: 400;
    letter-spacing: 0.01em; line-height: 1.12;
    margin-bottom: 0.7rem;
    color: var(--black);
  }
  .book-modal p {
    font-family: 'Open Sans', sans-serif;
    font-size: 0.92rem; font-weight: 300;
    line-height: 1.5; color: var(--text);
    margin-bottom: 1.3rem;
  }
  .book-modal .btn-primary {
    background: var(--teal); color: var(--black);
    font-weight: 700; display: inline-block;
  }
  .book-modal .btn-primary:hover { background: var(--teal-dark); color: var(--off-white); }
  @media (max-width: 560px) {
    .book-modal { flex-direction: column; text-align: center; padding-top: 2.8rem; }
    .book-modal-cover { width: 120px; }
  }

  /* ── LIBRO (venta) ── */
  #libro {
    padding: 6rem 4rem;
    background: var(--black);
    color: var(--off-white);
  }
  #libro .section-label { color: var(--teal); }
  #libro h2 { color: var(--off-white); }
  .libro-grid {
    display: grid;
    grid-template-columns: minmax(220px, 320px) 1fr;
    gap: 3.5rem;
    align-items: start;
    margin-top: 2.5rem;
  }
  .libro-grid { grid-template-columns: 1fr minmax(220px, 320px); }
  .libro-cover-wrap { position: relative; text-align: center; order: 2; }
  .libro-cover-wrap img {
    width: 100%; height: auto; max-width: 320px;
    filter: drop-shadow(0 20px 40px rgba(0,0,0,0.55));
  }
  .libro-price {
    font-family: 'Anton', sans-serif;
    font-size: 1.5rem;
    color: var(--teal);
    margin-top: 1.4rem;
    letter-spacing: 0.02em;
  }
  .libro-info { order: 1; }
  .libro-info .libro-eyebrow {
    font-family: 'Open Sans', sans-serif;
    font-size: 0.78rem; font-weight: 700;
    letter-spacing: 0.16em; text-transform: uppercase;
    color: var(--teal); margin-bottom: 0.8rem;
  }
  .libro-info h3 {
    font-family: 'Anton', sans-serif;
    font-size: 2.2rem; font-weight: 400;
    line-height: 1.05;
    margin-bottom: 0.3rem;
  }
  .libro-info .libro-subtitle {
    font-family: 'Anton', sans-serif;
    font-size: 1.3rem; color: var(--off-white);
    opacity: 0.85;
    margin-bottom: 1.4rem; font-weight: 400;
    letter-spacing: 0.01em; line-height: 1.15;
  }
  .libro-info p.libro-desc {
    font-family: 'Open Sans', sans-serif;
    font-weight: 300; line-height: 1.65;
    color: var(--warm-gray); margin-bottom: 1.2rem;
    max-width: 60ch;
  }
  .libro-ejes {
    list-style: none;
    margin-bottom: 1.8rem;
    max-width: 60ch;
  }
  .libro-ejes li {
    font-family: 'Open Sans', sans-serif;
    font-weight: 300; line-height: 1.5;
    color: var(--warm-gray);
    padding: 0.5rem 0 0.5rem 1.4rem;
    position: relative;
    border-bottom: 1px solid rgba(242,242,239,0.1);
  }
  .libro-ejes li::before {
    content: '→'; color: var(--teal); position: absolute; left: 0;
  }
  .libro-form-title {
    font-family: 'Anton', sans-serif;
    font-size: 1.2rem;
    color: var(--off-white);
    margin-bottom: 1rem;
  }
  .libro-form {
    background: rgba(242,242,239,0.04);
    border: 1px solid rgba(242,242,239,0.14);
    border-radius: 4px;
    padding: 1.8rem;
    max-width: 460px;
  }
  .libro-form-row {
    display: flex; flex-direction: column; gap: 0.4rem;
    margin-bottom: 1.1rem;
  }
  .libro-form-row label {
    font-family: 'Open Sans', sans-serif;
    font-size: 0.72rem; font-weight: 700;
    letter-spacing: 0.1em; text-transform: uppercase;
    color: var(--mid-gray);
  }
  .libro-form-row input,
  .libro-form-row select {
    font-family: 'Open Sans', sans-serif;
    font-size: 0.95rem;
    background: var(--off-white);
    color: var(--black);
    border: none; border-radius: 2px;
    padding: 0.7rem 0.8rem;
  }
  .libro-form-actions {
    display: flex; flex-wrap: wrap; gap: 0.8rem; margin-top: 0.4rem;
  }
  .libro-form .btn-primary {
    background: var(--teal); color: var(--black);
    border: none; cursor: pointer; font-weight: 700;
    font-family: 'Open Sans', sans-serif;
  }
  .libro-form .btn-primary:hover { background: var(--off-white); }
  .libro-form-note {
    font-size: 0.78rem; color: var(--mid-gray);
    margin-top: 1rem; line-height: 1.5;
  }
  @media (max-width: 860px) {
    #libro { padding: 4.5rem 1.5rem; }
    .libro-grid { grid-template-columns: 1fr; }
    .libro-cover-wrap { max-width: 240px; margin: 0 auto; }
  }

  .hero-side {
    position: relative; z-index: 2;
    display: flex; flex-direction: column; justify-content: space-between; gap: 1rem;
  }
  .hero-box {
    padding: 2.2rem 2rem;
    text-align: left;
    text-decoration: none;
    display: block;
    border-radius: 18px;
    transition: background .2s, color .2s, transform .2s, box-shadow .2s;
  }
  .hero-box:hover { transform: translateY(-2px); }

  .hero-box--teal { background: var(--teal); color: var(--black); box-shadow: 12px 12px 0 0 var(--black); border-radius: 18px 18px 18px 4px; }
  .hero-box--teal:hover { background: var(--black); color: var(--off-white); box-shadow: 12px 12px 0 0 var(--teal); }

  .hero-box--black { background: var(--black); color: var(--off-white); box-shadow: 12px 12px 0 0 var(--teal); border-radius: 18px 18px 18px 4px; }
  .hero-box--black:hover { background: var(--teal); color: var(--black); box-shadow: 12px 12px 0 0 var(--black); }

  .hero-box-eyebrow {
    font-family: 'Open Sans', sans-serif;
    font-size: 0.7rem; font-weight: 700;
    letter-spacing: 0.14em; text-transform: uppercase;
    margin-bottom: 0.6rem;
  }
  .hero-box--teal .hero-box-eyebrow { color: var(--black); opacity: 0.65; transition: color .2s, opacity .2s; }
  .hero-box--teal:hover .hero-box-eyebrow { color: var(--teal); opacity: 1; }
  .hero-box--black .hero-box-eyebrow { color: var(--teal); transition: color .2s; }
  .hero-box--black:hover .hero-box-eyebrow { color: var(--black); }

  .hero-box-title {
    font-family: 'Anton', sans-serif;
    font-size: 1.3rem; line-height: 1.15;
    letter-spacing: 0.01em;
  }
  .hero-box-subtitle {
    font-family: 'Open Sans', sans-serif;
    font-weight: 400; font-size: 0.85rem;
    margin-top: 0.4rem; line-height: 1.4;
  }
  .hero-box--teal .hero-box-subtitle { color: var(--black); opacity: 0.75; transition: color .2s, opacity .2s; }
  .hero-box--teal:hover .hero-box-subtitle { color: var(--off-white); opacity: 0.85; }
  .hero-box--black .hero-box-subtitle { color: var(--off-white); opacity: 0.75; transition: color .2s, opacity .2s; }
  .hero-box--black:hover .hero-box-subtitle { color: var(--black); opacity: 0.75; }

  /* ── SECTION BASE ── */
  section { padding: 6rem 4rem; }
  .section-label {
    font-family: 'Open Sans', sans-serif;
    font-size: 0.72rem; font-weight: 700;
    letter-spacing: 0.2em; text-transform: uppercase;
    color: var(--teal); margin-bottom: 0.8rem;
    display: flex; align-items: center; gap: 0.6rem;
  }
  .section-label::before { content: ''; display: block; width: 24px; height: 2px; background: var(--teal); }
  h2 {
    font-family: 'Anton', sans-serif;
    font-size: clamp(2.8rem, 5vw, 4.5rem);
    line-height: 1; letter-spacing: 0.03em; color: var(--black);
  }

  /* ── HOLA ── */
  #hola {
    background: var(--black); color: var(--off-white);
    display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: center;
  }
  #hola .section-label { color: var(--teal); }
  #hola h2 { color: var(--off-white); margin-bottom: 1.5rem; }
  #hola p { font-size: 1.05rem; line-height: 1.75; opacity: 0.8; margin-bottom: 1.2rem; }
  .hero-left p {
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 1rem;
  }
  .hola-questions {
    list-style: none; display: flex; flex-direction: column; gap: 0;
    margin-bottom: 1rem;
  }
  .hola-questions li {
    display: flex; align-items: flex-start; gap: 0.7rem;
    font-family: 'Open Sans', sans-serif; font-size: 1rem; font-weight: 400;
    line-height: 1.6;
    color: var(--text);
  }
  .hola-questions li::before { content: '→'; color: var(--teal-dark); flex-shrink: 0; }
  .hola-right { position: relative; }
  .hola-big-word {
    font-family: 'Anton', sans-serif;
    font-size: 14rem; line-height: 1;
    color: rgba(255,255,255,0.04);
    position: absolute; right: -2rem; top: -4rem;
    pointer-events: none; user-select: none;
  }
  .author-tag {
    margin-top: 2.5rem;
    display: inline-flex; align-items: center; gap: 1rem;
  }
  .author-tag-line { width: 40px; height: 2px; background: var(--teal); }
  .author-tag-name {
    font-family: 'Open Sans', sans-serif; font-weight: 700;
    font-size: 0.9rem; letter-spacing: 0.08em; text-transform: uppercase;
    color: var(--teal);
  }

  /* ── ASESORÍAS ── */
  #asesorias { background: var(--off-white); }
  .asesorias-grid {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5px;
    margin-top: 3rem; background: var(--warm-gray);
    border: 1.5px solid var(--warm-gray);
  }
  .asesoria-card {
    background: var(--off-white);
    padding: 2.8rem 2.5rem;
    position: relative; overflow: hidden;
    transition: background .25s;
    cursor: default;
  }
  .asesoria-card:hover { background: var(--black); }
  .asesoria-card:hover .asesoria-title { color: var(--teal); }
  .asesoria-card:hover .asesoria-body { color: rgba(255,255,255,0.75); }
  .asesoria-card:hover .asesoria-num { color: rgba(255,255,255,0.08); }
  .asesoria-num {
    font-family: 'Anton', sans-serif;
    font-size: 5rem; line-height: 1;
    color: rgba(0,0,0,0.05);
    position: absolute; right: 1.5rem; top: 1rem;
    transition: color .25s;
  }
  .asesoria-title {
    font-family: 'Open Sans', sans-serif;
    font-size: 1.3rem; font-weight: 800;
    color: var(--black); margin-bottom: 1rem;
    transition: color .25s;
    position: relative; z-index: 1;
  }
  .asesoria-body {
    font-size: 0.93rem; line-height: 1.7;
    color: #555; transition: color .25s;
    position: relative; z-index: 1;
  }

  /* ── CAPACITACIÓN ── */
  #capacitacion { background: var(--warm-gray); }
  .cap-panel { display: none; margin-top: 3rem; }
  .cap-panel.active { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
  .cap-item {
    background: var(--off-white);
    padding: 2rem 2rem 2rem 2.5rem;
    border-left: 3px solid var(--teal);
    transition: transform .2s, box-shadow .2s;
  }
  .cap-item:hover { transform: translateX(4px); box-shadow: -4px 0 0 var(--black); border-color: var(--black); }
  .cap-item-title {
    font-family: 'Open Sans', sans-serif; font-size: 1.1rem; font-weight: 800;
    color: var(--black); margin-bottom: 0.7rem;
  }
  .cap-item-body { font-size: 0.9rem; line-height: 1.65; color: #555; }


  /* ── SERVICIOS ── */
  #servicios {
    background: var(--black); color: var(--off-white);
  }
  #servicios h2 { color: var(--off-white); margin-bottom: 3rem; }
  .servicios-grid {
    display: grid; grid-template-columns: repeat(2, 1fr); grid-template-rows: repeat(2, 1fr); gap: 1.5px;
    margin-top: 3rem; background: rgba(255,255,255,0.1);
    border: 1.5px solid rgba(255,255,255,0.1);
  }
  .servicio-card {
    background: var(--off-white);
    padding: 2.8rem 2.5rem;
    position: relative; overflow: hidden;
    transition: background .25s;
    cursor: default;
  }
  .servicio-card:hover { background: var(--black); }
  .servicio-card:hover .servicio-title { color: var(--teal); }
  .servicio-card:hover .servicio-desc { color: rgba(255,255,255,0.75); }
  .servicio-card:hover .servicio-num { color: rgba(255,255,255,0.08); }
  .servicio-card:nth-child(1) { grid-column: 1; grid-row: 1; }
  .servicio-card:nth-child(3) { grid-column: 1; grid-row: 2; }
  .servicio-card:nth-child(2) { grid-column: 2; grid-row: 1 / 3; display: flex; flex-direction: column; justify-content: center; }
  .servicio-num {
    font-family: 'Anton', sans-serif;
    font-size: 5rem; line-height: 1;
    color: rgba(0,0,0,0.05);
    position: absolute; right: 1.5rem; top: 1rem;
    transition: color .25s;
  }
  .servicio-title {
    font-family: 'Open Sans', sans-serif; font-size: 1.3rem; font-weight: 800;
    color: var(--black); margin-bottom: 1rem;
    transition: color .25s;
    position: relative; z-index: 1;
  }
  .servicio-desc {
    font-size: 0.93rem; line-height: 1.7;
    color: #555; transition: color .25s;
    position: relative; z-index: 1;
    max-width: 560px;
  }

  /* ── CIERRE ── */
  #cierre {
    background: var(--teal);
    color: var(--black);
    text-align: center;
    padding: 7rem 4rem;
    position: relative;
    z-index: 1;
  }
  #cierre h2 {
    font-size: clamp(3rem, 6vw, 5.5rem);
    color: var(--black); max-width: 780px; margin: 0 auto 1.5rem;
    line-height: 1.05;
  }
  #cierre p {
    font-size: 1.15rem; max-width: 540px; margin: 0 auto 2.5rem;
    opacity: 0.8; line-height: 1.6;
  }
  #cierre .btn-primary { background: var(--black); color: var(--teal); }
  #cierre .btn-primary:hover { background: var(--off-white); color: var(--black); }

  /* ── FOOTER ── */
  footer {
    background: var(--black); color: var(--off-white);
    padding: 2.5rem 4rem;
    display: flex; justify-content: space-between; align-items: center;
    border-top: 1px solid rgba(255,255,255,0.08);
  }
  .footer-logo {
    font-family: 'Anton', sans-serif; font-size: 1.6rem;
    letter-spacing: 0.04em; color: var(--off-white);
  }
  .footer-logo span { color: var(--teal); }
  .footer-tagline {
    font-family: 'Open Sans', sans-serif; font-size: 0.72rem;
    font-weight: 600; letter-spacing: 0.15em; text-transform: uppercase;
    opacity: 0.4;
  }
  .footer-author {
    font-size: 0.82rem; opacity: 0.4; text-align: right;
  }

  /* ── SCROLL REVEAL ── */
  .reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
  .reveal.visible { opacity: 1; transform: translateY(0); }
  .reveal-delay-1 { transition-delay: 0.1s; }
  .reveal-delay-2 { transition-delay: 0.2s; }
  .reveal-delay-3 { transition-delay: 0.3s; }
  .reveal-delay-4 { transition-delay: 0.4s; }

  /* ── RESPONSIVE ── */
  @media (max-width: 900px) {
    nav { padding: 1rem 1.5rem; flex-wrap: wrap; }
    .nav-toggle { display: flex; }
    .nav-links {
      display: none;
      position: absolute; top: 100%; left: 0; right: 0;
      flex-direction: column; gap: 0;
      background: var(--off-white);
      padding: 0.5rem 1.5rem 1.2rem;
      border-bottom: 1px solid rgba(0,0,0,0.07);
      max-height: calc(100vh - 64px);
      overflow-y: auto;
    }
    .nav-links.nav-open { display: flex; }
    .nav-links li { width: 100%; }
    .nav-links a { display: block; padding: 0.9rem 0; }
    .nav-cta { display: inline-block; margin-top: 0.4rem; }
    #hero { padding: 7rem 1.5rem 3rem; }
    .hero-content { grid-template-columns: 1fr; gap: 2rem; }
    .hero-content > * { min-width: 0; }
    .hero-logo-row { margin-bottom: 2rem; }
    section { padding: 4rem 1.5rem; }
    #hola { grid-template-columns: 1fr; gap: 2rem; }
    .hola-big-word { display: none; }
    .asesorias-grid { grid-template-columns: 1fr; }
    .cap-panel.active { grid-template-columns: 1fr; }
    .servicios-grid { grid-template-columns: 1fr; grid-template-rows: none; }
    .servicio-card:nth-child(1),
    .servicio-card:nth-child(2),
    .servicio-card:nth-child(3) { grid-column: auto; grid-row: auto; display: block; }
    footer { flex-direction: column; gap: 1rem; text-align: center; }
    .footer-author { text-align: center; }
  }

  .cierre-btns { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
  .btn-whatsapp {
    background: #25D366; color: #000;
    padding: 0.9rem 2.2rem;
    font-family: 'Open Sans', sans-serif;
    font-size: 0.82rem; font-weight: 700;
    letter-spacing: 0.1em; text-transform: uppercase;
    text-decoration: none; border-radius: 2px;
    transition: background .2s, transform .2s;
    display: inline-block;
  }
  .btn-whatsapp:hover { background: #1ebe5d; transform: translateY(-2px); }
  .btn-instagram {
    background: #E1306C; color: #fff;
    padding: 0.9rem 2.2rem;
    font-family: 'Open Sans', sans-serif;
    font-size: 0.82rem; font-weight: 700;
    letter-spacing: 0.1em; text-transform: uppercase;
    text-decoration: none; border-radius: 2px;
    transition: background .2s, transform .2s;
    display: inline-block;
  }
  .btn-instagram:hover { background: #c1255a; transform: translateY(-2px); }

  /* Hero logo transparent */
  .hero-logo-img {
    max-width: 520px; width: 100%;
    display: block;
  }

  /* Mobile top contact bar */
  .mobile-contact-bar {
    display: none;
  }
  @media (max-width: 900px) {
    .mobile-contact-bar {
      display: flex;
      gap: 0.8rem;
      justify-content: center;
      padding: 0.8rem 1.5rem;
      background: var(--black);
      position: fixed;
      bottom: 0; left: 0; right: 0;
      z-index: 200;
    }
    .mobile-contact-bar a {
      flex: 1;
      display: flex; align-items: center; justify-content: center; gap: 0.4rem;
      white-space: nowrap;
      text-align: center;
      padding: 0.7rem 0.6rem;
      font-family: 'Open Sans', sans-serif;
      font-size: 0.74rem; font-weight: 700;
      letter-spacing: 0.06em; text-transform: uppercase;
      text-decoration: none; border-radius: 2px;
    }
    .mobile-contact-bar .mob-mail {
      background: var(--off-white); color: var(--black);
    }
    .mobile-contact-bar .mob-wa {
      background: #25D366; color: var(--black);
    }
    .mobile-contact-bar .mob-ig {
      background: #E1306C; color: #fff;
    }
    body { padding-bottom: 64px; }
  }