/* ===== TIPOGRAFIAS ALOJADAS LOCALMENTE (sin terceros) ===== */
  @font-face{font-family:'Inter';font-style:normal;font-weight:300;font-display:swap;src:url('fonts/inter-latin-300-normal.woff2') format('woff2');}
  @font-face{font-family:'Inter';font-style:normal;font-weight:400;font-display:swap;src:url('fonts/inter-latin-400-normal.woff2') format('woff2');}
  @font-face{font-family:'Inter';font-style:italic;font-weight:400;font-display:swap;src:url('fonts/inter-latin-400-italic.woff2') format('woff2');}
  @font-face{font-family:'Inter';font-style:normal;font-weight:500;font-display:swap;src:url('fonts/inter-latin-500-normal.woff2') format('woff2');}
  @font-face{font-family:'Inter';font-style:normal;font-weight:600;font-display:swap;src:url('fonts/inter-latin-600-normal.woff2') format('woff2');}
  @font-face{font-family:'Inter';font-style:normal;font-weight:700;font-display:swap;src:url('fonts/inter-latin-700-normal.woff2') format('woff2');}
  @font-face{font-family:'Space Grotesk';font-style:normal;font-weight:400;font-display:swap;src:url('fonts/space-grotesk-latin-400-normal.woff2') format('woff2');}
  @font-face{font-family:'Space Grotesk';font-style:normal;font-weight:500;font-display:swap;src:url('fonts/space-grotesk-latin-500-normal.woff2') format('woff2');}
  @font-face{font-family:'Space Grotesk';font-style:normal;font-weight:600;font-display:swap;src:url('fonts/space-grotesk-latin-600-normal.woff2') format('woff2');}
  @font-face{font-family:'Space Grotesk';font-style:normal;font-weight:700;font-display:swap;src:url('fonts/space-grotesk-latin-700-normal.woff2') format('woff2');}
  :root {
    --bg: #FAFAFA;
    --bg-alt: #F3F0F5;
    --bg-dark: #1A1525;
    --ink: #1A1525;
    --ink-light: #3D2F4A;
    --purple: #5B2B5A;
    --purple-light: #7A3D79;
    --copper: #B87333;
    --copper-light: #D4A574;
    --text: #2D1F3A;
    --text-muted: #7A6B85;
    --text-faint: #A89DB0;
    --border: rgba(91,43,90,0.10);
    --border-strong: rgba(91,43,90,0.20);
  }
  * { margin: 0; padding: 0; box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body {
    font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.65;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
  }
  h1, h2, h3, h4 { font-family: 'Space Grotesk', 'Inter', system-ui, sans-serif; font-weight: 500; letter-spacing: -0.02em; }

  /* ===== GEOMETRIC ART ===== */
  .geo-bg {
    position: absolute; inset: 0; pointer-events: none; overflow: hidden; z-index: 0;
  }
  .geo-bg svg { position: absolute; }

  /* ===== HEADER ===== */
  .header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: rgba(250,250,250,0.92);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 48px;
    height: 88px;
  }
  .logo { display: flex; align-items: center; gap: 16px; text-decoration: none; }
  .logo img { height: 40px; width: auto; display: block; }
  .nav { display: flex; gap: 36px; align-items: center; }
  .nav a {
    color: var(--text-muted); text-decoration: none; font-size: 13px;
    font-weight: 500; letter-spacing: 0.04em; text-transform: uppercase;
    transition: color 0.3s; cursor: pointer; position: relative;
    font-family: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  }
  .nav a::after {
    content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px;
    background: var(--copper); transition: width 0.3s;
  }
  .nav a:hover, .nav a.active { color: var(--ink); }
  .nav a:hover::after, .nav a.active::after { width: 100%; }
  .lang-toggle {
    display: flex; gap: 2px; border: 1px solid var(--border-strong);
    border-radius: 20px; padding: 3px; background: rgba(91,43,90,0.04);
  }
  .lang-btn {
    padding: 5px 14px; border-radius: 16px; font-size: 11px;
    font-weight: 600; letter-spacing: 0.08em; cursor: pointer; border: none;
    background: transparent; color: var(--text-muted); transition: all 0.25s;
    font-family: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  }
  .lang-btn.active { background: var(--purple); color: #fff; }

  /* ===== PAGE SYSTEM ===== */
  .page { display: none; padding-top: 88px; }
  .page.active { display: block; }

  /* ===== HERO ===== */
  .hero {
    padding: 110px 48px 90px; position: relative; overflow: hidden;
    background: var(--bg);
  }
  .hero-inner { max-width: 1100px; margin: 0 auto; position: relative; z-index: 1; }
  .hero h1 {
    font-size: 58px; font-weight: 500; line-height: 1.08;
    margin: 0 0 28px; max-width: 820px; color: var(--ink);
  }
  .hero h1 em {
    font-style: normal; color: var(--purple);
  }
  .hero p {
    font-size: 18px; color: var(--text-muted); max-width: 600px;
    margin: 0 0 40px; line-height: 1.7; font-weight: 400;
  }
  .hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }
  .btn {
    padding: 14px 32px; border-radius: 0; font-size: 13px; font-weight: 600;
    cursor: pointer; border: none; transition: all 0.3s;
    text-decoration: none; display: inline-block; text-align: center;
    letter-spacing: 0.06em; text-transform: uppercase;
    font-family: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  }
  .btn-primary {
    background: var(--purple); color: #fff;
  }
  .btn-primary:hover { background: var(--purple-light); }
  .btn-ghost {
    background: transparent; color: var(--purple);
    border: 1px solid var(--border-strong);
  }
  .btn-ghost:hover { background: rgba(91,43,90,0.04); border-color: var(--purple); }

  /* ===== SECTIONS ===== */
  .section { padding: 100px 48px; position: relative; }
  .section-alt { background: var(--bg-alt); }
  .section-dark {
    background: var(--bg-dark); color: #fff;
  }
  .section-dark h2, .section-dark h3 { color: #fff; }
  .section-dark p { color: var(--text-faint); }
  .section-header { margin-bottom: 64px; position: relative; z-index: 1; }
  .section-header h2 {
    font-size: 42px; font-weight: 500; margin: 0 0 16px; line-height: 1.15;
  }
  .section-header p {
    font-size: 17px; color: var(--text-muted); margin: 0; font-weight: 400;
    max-width: 600px;
  }
  .section-dark .section-header p { color: var(--text-faint); }
  .divider {
    width: 48px; height: 3px; background: var(--copper); margin-bottom: 24px;
  }

  /* ===== PILLARS ===== */
  .pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 48px; max-width: 1000px; margin: 0 auto; position: relative; z-index: 1; }
  .pillar { padding-top: 32px; border-top: 1px solid var(--border-strong); }
  .pillar-num {
    font-family: 'Space Grotesk', 'Inter', system-ui, sans-serif; font-size: 48px; font-weight: 400;
    color: var(--copper-light); line-height: 1; margin-bottom: 20px; opacity: 0.6;
  }
  .pillar h3 { font-size: 22px; margin: 0 0 12px; color: var(--ink); }
  .pillar p { font-size: 15px; color: var(--text-muted); line-height: 1.7; margin: 0; }

  /* ===== SERVICES ===== */
  .svc-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; max-width: 1000px; margin: 0 auto; background: var(--border); position: relative; z-index: 1; }
  .svc-card {
    background: var(--bg); padding: 48px 40px;
    transition: background 0.3s;
  }
  .svc-card:hover { background: var(--bg-alt); }
  .svc-card h4 {
    font-family: 'Space Grotesk', 'Inter', system-ui, sans-serif; font-size: 22px; font-weight: 500;
    margin: 0 0 14px; color: var(--ink);
  }
  .svc-card p { font-size: 15px; color: var(--text-muted); margin: 0 0 20px; line-height: 1.7; }
  .svc-tags { display: flex; flex-wrap: wrap; gap: 8px; }
  .svc-tag {
    padding: 5px 14px; font-size: 11px; font-weight: 500;
    letter-spacing: 0.06em; text-transform: uppercase;
    color: var(--purple); border: 1px solid var(--border); background: transparent;
    font-family: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  }

  /* ===== TEAM ===== */
  .team-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 32px; max-width: 1100px; margin: 0 auto; position: relative; z-index: 1; }
  .team-card { text-align: left; }
  .team-avatar {
    width: 100%; aspect-ratio: 1; border-radius: 0; margin: 0 0 20px;
    object-fit: cover; filter: grayscale(20%);
    transition: filter 0.4s;
  }
  .team-card:hover .team-avatar { filter: grayscale(0%); }
  .team-card h4 {
    font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif; font-size: 15px; font-weight: 600;
    margin: 0 0 4px; color: var(--ink);
  }
  .team-card .role {
    font-size: 11px; color: var(--copper); font-weight: 600;
    letter-spacing: 0.08em; text-transform: uppercase; display: block; margin-bottom: 12px;
    font-family: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  }
  .team-card p { font-size: 13px; color: var(--text-muted); margin: 0; line-height: 1.6; }
  .team-card .interests {
    font-size: 12px; color: var(--text-faint); margin-top: 12px;
    font-style: italic; border-left: 2px solid var(--copper-light); padding-left: 10px;
  }

  /* ===== PRINCIPLES ===== */
  .principles-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; max-width: 1000px; margin: 0 auto; background: var(--border); position: relative; z-index: 1; }
  .principle-card {
    background: var(--bg); padding: 36px 28px; text-align: left;
    transition: background 0.3s;
  }
  .principle-card:hover { background: var(--bg-alt); }
  .principle-num {
    font-family: 'Space Grotesk', 'Inter', system-ui, sans-serif; font-size: 32px; font-weight: 400;
    color: var(--copper); line-height: 1; margin-bottom: 14px;
  }
  .principle-card h4 { font-size: 16px; font-weight: 600; margin: 0 0 8px; font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif; }
  .principle-card p { font-size: 13px; color: var(--text-muted); margin: 0; line-height: 1.6; }

  /* ===== PUBLICATIONS ===== */
  .pub-layout { display: grid; grid-template-columns: 1fr 320px; gap: 48px; max-width: 1100px; margin: 0 auto; position: relative; z-index: 1; }
  .pub-featured {
    display: grid; grid-template-columns: 1fr 1fr; gap: 0;
    border: 1px solid var(--border); margin-bottom: 40px;
  }
  .pub-feat-img {
    min-height: 280px; background: linear-gradient(135deg, var(--bg-dark) 0%, var(--purple) 100%);
    position: relative; display: flex; align-items: center; justify-content: center;
  }
  .pub-feat-img svg { width: 48px; height: 48px; opacity: 0.25; color: #fff; }
  .pub-feat-img { overflow: hidden; padding: 0; }
  .pub-feat-img img { width: 100%; height: 100%; min-height: 280px; object-fit: cover; object-position: top center; display: block; }
  .pub-feat-body { padding: 40px; display: flex; flex-direction: column; justify-content: center; background: var(--bg); }
  .pub-feat-tag {
    font-size: 10px; font-weight: 700; letter-spacing: 0.15em; text-transform: uppercase;
    color: var(--copper); margin-bottom: 16px;
  }
  .pub-feat-body h3 { font-size: 24px; font-weight: 500; margin: 0 0 14px; line-height: 1.3; color: var(--ink); }
  .pub-feat-body p { font-size: 15px; color: var(--text-muted); margin: 0 0 18px; line-height: 1.7; }
  .pub-feat-meta { font-size: 12px; color: var(--text-faint); letter-spacing: 0.04em; }
  .pub-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--border); }
  .pub-card {
    background: var(--bg); padding: 32px;
    transition: background 0.3s;
  }
  .pub-card:hover { background: var(--bg-alt); }
  .pub-card-tag {
    font-size: 10px; font-weight: 700; letter-spacing: 0.15em; text-transform: uppercase;
    color: var(--copper); margin-bottom: 12px; display: block;
  }
  .pub-card h4 { font-size: 17px; font-weight: 500; margin: 0 0 10px; line-height: 1.35; font-family: 'Space Grotesk', 'Inter', system-ui, sans-serif; color: var(--ink); }
  .pub-card p { font-size: 13px; color: var(--text-muted); margin: 0 0 14px; line-height: 1.6; }
  .pub-card-meta { font-size: 11px; color: var(--text-faint); letter-spacing: 0.04em; }

  .pub-sidebar { display: flex; flex-direction: column; gap: 24px; }
  .side-box {
    border: 1px solid var(--border); padding: 28px; background: var(--bg);
  }
  .side-box h4 {
    font-family: 'Space Grotesk', 'Inter', system-ui, sans-serif; font-size: 16px; font-weight: 500;
    margin: 0 0 20px; color: var(--ink);
  }
  .side-item { display: flex; gap: 14px; margin-bottom: 16px; align-items: center; }
  .side-item:last-child { margin-bottom: 0; }
  .side-thumb {
    width: 44px; height: 44px; border-radius: 50%; flex-shrink: 0;
    object-fit: cover; filter: grayscale(30%);
  }
  .side-info h5 { font-size: 13px; font-weight: 600; margin: 0 0 3px; color: var(--ink); }
  .side-info span { font-size: 11px; color: var(--text-faint); }
  .newsletter-box {
    background: var(--bg-dark); border: 1px solid var(--border-strong); padding: 28px;
  }
  .newsletter-box h4 { font-family: 'Space Grotesk', 'Inter', system-ui, sans-serif; font-size: 16px; font-weight: 500; margin: 0 0 6px; color: #fff; }
  .newsletter-box p { font-size: 12px; color: var(--text-faint); margin: 0 0 16px; }
  .newsletter-box input {
    width: 100%; padding: 12px 14px; border: 1px solid var(--border-strong);
    background: rgba(255,255,255,0.05); color: #fff; font-size: 13px;
    margin-bottom: 10px; outline: none; font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  }
  .newsletter-box input::placeholder { color: var(--text-faint); }
  .newsletter-box button {
    width: 100%; padding: 12px; background: var(--copper); color: #fff;
    border: none; font-size: 12px; font-weight: 600; cursor: pointer;
    letter-spacing: 0.08em; text-transform: uppercase;
    font-family: 'Space Grotesk', 'Inter', system-ui, sans-serif;
    transition: background 0.3s;
  }
  .newsletter-box button:hover { background: var(--copper-light); }

  /* ===== RESEARCH LINES ===== */
  .lines-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; max-width: 1000px; margin: 0 auto; background: var(--border); position: relative; z-index: 1; }
  .line-card {
    background: var(--bg); padding: 44px 36px; position: relative;
    transition: background 0.3s;
  }
  .line-card:hover { background: var(--bg-alt); }
  .line-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: var(--copper);
  }
  .line-num {
    font-family: 'Space Grotesk', 'Inter', system-ui, sans-serif; font-size: 14px; font-weight: 500;
    color: var(--copper); letter-spacing: 0.1em; margin-bottom: 20px;
  }
  .line-card h3 { font-size: 22px; font-weight: 500; margin: 0 0 12px; color: var(--ink); }
  .line-card p { font-size: 14px; color: var(--text-muted); margin: 0 0 20px; line-height: 1.7; }
  .line-meta { display: flex; gap: 20px; font-size: 12px; color: var(--text-faint); letter-spacing: 0.04em; }

  /* ===== CONTACT ===== */
  .contact-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 48px; max-width: 1000px; margin: 0 auto; position: relative; z-index: 1; }
  .form-card { border: 1px solid var(--border); padding: 48px; background: var(--bg); }
  .form-card h3 { font-size: 28px; font-weight: 500; margin: 0 0 8px; }
  .form-card > p { font-size: 15px; color: var(--text-muted); margin: 0 0 36px; font-weight: 400; }
  .field { margin-bottom: 24px; }
  .field label {
    display: block; font-size: 11px; font-weight: 600; color: var(--text-muted);
    margin-bottom: 8px; letter-spacing: 0.08em; text-transform: uppercase;
    font-family: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  }
  .field input, .field select, .field textarea {
    width: 100%; padding: 14px 16px; border: 1px solid var(--border);
    background: transparent; color: var(--text); font-size: 14px;
    outline: none; transition: all 0.3s; font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    border-radius: 0;
  }
  .field input:focus, .field select:focus, .field textarea:focus {
    border-color: var(--purple);
  }
  .field input::placeholder, .field textarea::placeholder { color: var(--text-faint); }
  .field textarea { min-height: 120px; resize: vertical; }
  .field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
  .submit-btn {
    width: 100%; padding: 16px; background: var(--purple); color: #fff;
    border: none; font-size: 13px; font-weight: 600; cursor: pointer;
    letter-spacing: 0.08em; text-transform: uppercase;
    font-family: 'Space Grotesk', 'Inter', system-ui, sans-serif;
    transition: background 0.3s;
  }
  .submit-btn:hover { background: var(--purple-light); }
  .info-card { display: flex; flex-direction: column; gap: 20px; }
  .info-box { border: 1px solid var(--border); padding: 28px; background: var(--bg); }
  .info-box h4 {
    font-size: 12px; font-weight: 700; color: var(--copper);
    margin: 0 0 16px; letter-spacing: 0.12em; text-transform: uppercase;
    font-family: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  }
  .info-item { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 14px; }
  .info-item:last-child { margin-bottom: 0; }
  .info-item svg { width: 18px; height: 18px; color: var(--purple); flex-shrink: 0; margin-top: 2px; }
  .info-item div { font-size: 14px; color: var(--text-muted); line-height: 1.6; }
  .info-item div strong { color: var(--ink); font-weight: 600; display: block; margin-bottom: 2px; }

  /* ===== CTA ===== */
  .cta-section {
    background: var(--bg-dark); padding: 100px 48px; text-align: center; position: relative; overflow: hidden;
  }
  .cta-section h2 { font-size: 36px; font-weight: 500; margin: 0 0 14px; color: #fff; }
  .cta-section p { font-size: 16px; color: var(--text-faint); margin: 0 0 32px; font-weight: 400; }
  .cta-btns { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
  .cta-form {
    display: flex; gap: 0; justify-content: center; max-width: 440px; margin: 0 auto;
  }
  .cta-form input {
    flex: 1; padding: 14px 18px; border: 1px solid var(--border-strong);
    background: rgba(255,255,255,0.05); color: #fff; font-size: 14px;
    outline: none; font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  }
  .cta-form input::placeholder { color: var(--text-faint); }
  .cta-form button {
    padding: 14px 28px; background: var(--copper); color: #fff; border: none;
    font-size: 12px; font-weight: 600; cursor: pointer;
    letter-spacing: 0.08em; text-transform: uppercase;
    font-family: 'Space Grotesk', 'Inter', system-ui, sans-serif;
    transition: background 0.3s;
  }
  .cta-form button:hover { background: var(--copper-light); }

  /* ===== FOOTER ===== */
  .footer {
    background: var(--bg-dark); padding: 64px 48px 32px;
    border-top: 1px solid var(--border-strong);
  }
  .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr; gap: 40px; max-width: 1100px; margin: 0 auto; }
  .footer-brand { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
  .footer-brand img { height: 52px; width: auto; }
  .footer-brand span {
    font-family: 'Space Grotesk', 'Inter', system-ui, sans-serif; font-size: 20px; font-weight: 600;
    color: #fff; letter-spacing: 0.06em; text-transform: uppercase;
  }
  .footer-desc { font-size: 14px; color: var(--text-faint); line-height: 1.7; margin: 0; font-weight: 400; }
  .footer-col h5 {
    font-size: 11px; font-weight: 700; color: #fff; margin: 0 0 20px;
    letter-spacing: 0.12em; text-transform: uppercase;
    font-family: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  }
  .footer-col a {
    display: block; font-size: 13px; color: var(--text-faint); text-decoration: none;
    margin-bottom: 10px; transition: color 0.3s;
  }
  .footer-col a:hover { color: var(--copper-light); }
  .footer-bottom {
    text-align: center; margin-top: 48px; padding-top: 24px;
    border-top: 1px solid var(--border-strong);
    font-size: 12px; color: var(--text-faint); letter-spacing: 0.04em;
  }
  .cc-badge {
    display: inline-flex; align-items: center; gap: 8px; margin-top: 16px;
  }
  .cc-badge svg { width: 24px; height: 24px; opacity: 0.6; }
  .cc-badge span { font-size: 12px; color: var(--text-faint); }

  /* ===== FAQ ===== */
  .faq-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; max-width: 900px; margin: 0 auto; background: var(--border); position: relative; z-index: 1; }
  .faq-item {
    background: var(--bg); padding: 32px;
    transition: background 0.3s;
  }
  .faq-item:hover { background: var(--bg-alt); }
  .faq-item h4 { font-size: 16px; font-weight: 600; margin: 0 0 10px; font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif; color: var(--ink); }
  .faq-item p { font-size: 14px; color: var(--text-muted); margin: 0; line-height: 1.7; }

  /* ===== FILTER ===== */
  .filter-row { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; padding: 0 48px 40px; max-width: 900px; margin: 0 auto; }
  .filter-btn {
    padding: 8px 20px; font-size: 12px; border: 1px solid var(--border);
    background: transparent; color: var(--text-muted); cursor: pointer;
    transition: all 0.3s; letter-spacing: 0.06em; text-transform: uppercase;
    font-family: 'Space Grotesk', 'Inter', system-ui, sans-serif; font-weight: 500;
  }
  .filter-btn:hover { border-color: var(--purple); color: var(--ink); }
  .filter-btn.active { background: var(--purple); border-color: var(--purple); color: #fff; }

  /* ===== METHODOLOGY ===== */
  .method-grid {
    display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
    align-items: stretch; gap: 0; max-width: 940px; margin: 0 auto;
    position: relative; z-index: 1;
  }
  .method-step {
    text-align: center; padding: 36px 20px; border: 1px solid var(--border);
    background: var(--bg); transition: background 0.3s;
    display: flex; flex-direction: column; justify-content: flex-start;
  }
  .method-step:hover { background: var(--bg-alt); }
  .method-num {
    font-family: 'Space Grotesk', 'Inter', system-ui, sans-serif; font-size: 36px; font-weight: 400;
    color: var(--copper); line-height: 1; margin-bottom: 14px;
  }
  .method-step h4 { font-size: 14px; font-weight: 600; margin: 0 0 6px; font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif; }
  .method-step p { font-size: 12px; color: var(--text-muted); margin: 0; }
  .method-arrow {
    color: var(--copper); font-size: 18px; font-family: 'Space Grotesk', 'Inter', system-ui, sans-serif;
    padding: 0 12px; display: flex; align-items: center; justify-content: center;
  }

  /* ===== DATASETS ===== */
  .dataset-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; max-width: 900px; margin: 0 auto; background: var(--border); position: relative; z-index: 1; }
  .dataset-card {
    background: var(--bg); padding: 32px; transition: background 0.3s;
  }
  .dataset-card:hover { background: var(--bg-alt); }
  .dataset-card h4 { font-size: 15px; font-weight: 600; margin: 0 0 10px; font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif; color: var(--ink); }
  .dataset-card p { font-size: 13px; color: var(--text-muted); margin: 0 0 14px; line-height: 1.6; }
  .dataset-meta { display: flex; gap: 16px; font-size: 11px; color: var(--text-faint); letter-spacing: 0.04em; }

  /* ===== RESPONSIVE ===== */
  @media (max-width: 900px) {
    .header { padding: 14px 24px; height: 76px; }
    .logo img { height: 32px; }
    .nav { display: none; }
    .hero { padding: 80px 24px 60px; }
    .hero h1 { font-size: 36px; }
    .section { padding: 64px 24px; }
    .section-header h2 { font-size: 28px; }
    .pub-layout { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .pub-featured { grid-template-columns: 1fr; }
    .pillars, .team-grid, .principles-grid, .lines-grid, .svc-grid, .pub-grid, .faq-grid, .dataset-grid { grid-template-columns: 1fr; }
    .method-grid { grid-template-columns: 1fr 1fr; }
    .method-arrow { display: none; }
    .field-row { grid-template-columns: 1fr; }
  }
  @media (max-width: 700px) {
    .hero h1 { font-size: 28px; }
    .section-header h2 { font-size: 24px; }
    .footer-grid { grid-template-columns: 1fr; }
    .team-grid { grid-template-columns: repeat(2, 1fr); }
    .method-grid { grid-template-columns: 1fr; }
  }

  /* enlaces de tarjeta: sin subrayado ni color de enlace */
  a.pub-card, a.pub-featured { text-decoration: none; color: inherit; display: block; }
  a.pub-featured { display: grid; }
  a.pub-card h4, a.pub-featured h3 { color: var(--ink); }
  a.pub-card:hover h4 { color: var(--purple); }

  /* ===== Proyectos: rejilla responsive ===== */
  .proj-grid { max-width: 900px; margin: 0 auto; display: grid; grid-template-columns: repeat(2, 1fr);
               gap: 1px; background: var(--border); position: relative; z-index: 1; }

  /* ===== Cabecera en tablets: evita que el selector de idioma se salga ===== */
  @media (max-width: 1100px) {
    .header { padding: 14px 24px; }
    .nav { gap: 20px; }
    .nav a { font-size: 12px; }
    .logo img { height: 34px; }
  }
  @media (max-width: 900px) {
    .proj-grid { grid-template-columns: 1fr; }
  }