:root {
    --azul-oscuro: #020b1a;
    --azul-medio: #051830;
    --azul-panel: #071e3d;
    --azul-borde: #0a2a50;
    --azul-acento: #0d6efd;
    --azul-brillante: #00aaff;
    --azul-neon: #00d4ff;
    --azul-glow: rgba(0, 212, 255, 0.15);
    --blanco: #e8f4ff;
    --blanco-suave: rgba(232, 244, 255, 0.7);
    --gris-tech: rgba(0, 180, 255, 0.08);
    --font-title: 'Inter', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Courier New", monospace;
  }

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

  html {
    scroll-behavior: smooth;
    font-size: 110%;
    /* Aumenta el texto de toda la web proporcionalmente */
  }

  body {
    background: var(--azul-oscuro);
    color: var(--blanco);
    font-family: var(--font-body);
    font-weight: 300;
    overflow-x: hidden;
    line-height: 1.7;
  }

  /* ── GRID BG ── */
  body::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: 0;
    background-image:
      linear-gradient(rgba(0, 170, 255, 0.04) 1px, transparent 1px),
      linear-gradient(90deg, rgba(0, 170, 255, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
  }

  /* ── NAV ── */
  nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(2, 11, 26, 0.92);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--azul-borde);
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100px;
  }

  .nav-logo {
    font-family: var(--font-title);
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--azul-neon);
    letter-spacing: 0.12em;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .nav-logo-img {
    height: 80px;
    width: auto;
    object-fit: contain;
  }

  .nav-logo-badge {
    background: var(--azul-acento);
    color: #fff;
    font-size: 0.55rem;
    padding: 2px 6px;
    border-radius: 3px;
    letter-spacing: 0.1em;
  }

  .nav-links {
    display: flex;
    gap: 0;
    list-style: none;
    flex-wrap: wrap;
  }

  .nav-links a {
    color: var(--blanco-suave);
    text-decoration: none;
    font-size: 0.72rem;
    font-family: var(--font-mono);
    letter-spacing: 0.08em;
    padding: 8px 12px;
    border-radius: 4px;
    transition: color 0.2s, background 0.2s;
    white-space: nowrap;
  }

  .nav-links a:hover,
  .nav-links a.active {
    color: var(--azul-neon);
    background: var(--azul-glow);
  }

  /* ── NAV DROPDOWN ── */
  .nav-dropdown {
    position: relative;
    display: inline-block;
  }

  .nav-dropbtn {
    cursor: pointer;
  }

  .nav-dropdown-content {
    display: none;
    position: absolute;
    background-color: var(--azul-oscuro);
    min-width: 160px;
    box-shadow: 0px 8px 20px rgba(0, 0, 0, 0.5);
    z-index: 101;
    border: 1px solid var(--azul-borde);
    border-radius: 6px;
    top: 100%;
    left: 0;
    overflow: hidden;
  }

  .nav-dropdown-content a {
    padding: 12px 16px;
    display: block;
    border-radius: 0;
    border-bottom: 1px solid rgba(0, 170, 255, 0.08);
    /* faint line between items */
  }

  .nav-dropdown-content a:last-child {
    border-bottom: none;
  }

  .nav-dropdown:hover .nav-dropdown-content {
    display: block;
    animation: fadeIn 0.2s ease-out forwards;
  }

  .nav-dropdown:hover .nav-dropbtn {
    color: var(--azul-neon);
    background: var(--azul-glow);
  }

  /* ── RESPONSIVE NAV (MOBILE/TABLET) ── */
  @media (max-width: 991px) {
    nav {
      position: static;
      flex-direction: column;
      height: auto;
      padding: 1rem 0.5rem;
      gap: 0.8rem;
    }

    .nav-logo-img {
      height: 55px; /* Logo un poco más pequeño para ganar espacio vertical */
    }

    .nav-links {
      flex-direction: row;
      flex-wrap: wrap;
      justify-content: center;
      width: 100%;
      gap: 0.3rem; /* Espacio mínimo */
    }

    .nav-links li {
      width: auto;
    }

    .nav-links a {
      padding: 5px 8px;
      font-size: 0.72rem;
      letter-spacing: 0.04em;
    }

    /* Estilo botón para el dropdown en móvil */
    .nav-dropbtn {
      background: var(--azul-medio) !important;
      border: 1px solid var(--azul-borde) !important;
      border-radius: 4px;
    }

    .nav-dropdown-content {
      position: absolute; 
      display: none;
      width: 200px;
      left: 50%;
      transform: translateX(-50%);
      background: #051830;
      border: 1px solid var(--azul-borde);
      box-shadow: 0 10px 30px rgba(0,0,0,0.8);
      z-index: 200;
      padding: 0;
    }

    .nav-dropdown:hover .nav-dropdown-content {
      display: block;
    }

    .nav-dropdown-content a {
      padding: 10px;
      font-size: 0.75rem;
      border-bottom: 1px solid rgba(0, 212, 255, 0.1);
    }

    .page {
      padding-top: 0; 
    }

    .hero {
      min-height: auto;
      padding: 2rem 1rem;
    }

    .nav-dropdown-content a {
      padding: 8px;
      font-size: 0.75rem;
      border-bottom: 1px solid rgba(0, 212, 255, 0.05);
    }

    .page {
      padding-top: 0; 
    }

    .hero {
      min-height: auto;
      padding: 2.5rem 1.2rem;
    }

    .ai-chat-panel {
      width: 90vw;
      height: 55vh;
      bottom: 5.5rem;
      right: 5vw;
    }
  }

  @keyframes fadeIn {
    from {
      opacity: 0;
      transform: translateY(-5px);
    }

    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  /* ── PAGES ── */
  .page {
    display: none;
    padding-top: 100px;
    min-height: 100vh;
    position: relative;
    z-index: 1;
  }

  .page.active {
    display: block;
  }

  /* ── HERO ── */
  .hero {
    min-height: calc(100vh - 100px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 4rem 2rem;
    position: relative;
    overflow: hidden;
  }

  .hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 80% 60% at 50% 40%, rgba(0, 170, 255, 0.12) 0%, transparent 70%);
  }

  .hero-badge {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    color: var(--azul-neon);
    letter-spacing: 0.2em;
    border: 1px solid var(--azul-neon);
    padding: 4px 16px;
    border-radius: 20px;
    margin-bottom: 1.5rem;
    display: inline-block;
    animation: pulse-border 3s ease-in-out infinite;
  }

  @keyframes pulse-border {

    0%,
    100% {
      box-shadow: 0 0 8px rgba(0, 212, 255, 0.3);
    }

    50% {
      box-shadow: 0 0 24px rgba(0, 212, 255, 0.6);
    }
  }

  .hero h1 {
    font-family: var(--font-title);
    font-size: clamp(2rem, 6vw, 5rem);
    font-weight: 900;
    line-height: 1.1;
    color: var(--blanco);
    margin-bottom: 0.5rem;
    text-shadow: 0 0 40px rgba(0, 212, 255, 0.3);
  }

  .hero h1 span {
    color: var(--azul-neon);
  }

  .hero-sub {
    font-family: var(--font-title);
    font-size: clamp(1rem, 3vw, 2rem);
    color: var(--azul-brillante);
    font-weight: 600;
    margin-bottom: 1rem;
    letter-spacing: 0.05em;
  }

  .hero-fecha {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--blanco-suave);
    margin-bottom: 2rem;
    letter-spacing: 0.15em;
  }

  .hero-tagline {
    max-width: 700px;
    font-size: 1rem;
    color: var(--blanco-suave);
    margin-bottom: 3rem;
    font-style: italic;
    line-height: 1.6;
  }

  .hero-stats {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 3rem;
  }

  .stat-box {
    border: 1px solid var(--azul-borde);
    background: var(--gris-tech);
    padding: 1rem 1.5rem;
    border-radius: 8px;
    text-align: center;
    backdrop-filter: blur(8px);
    transition: border-color 0.3s, transform 0.3s;
  }

  .stat-box:hover {
    border-color: var(--azul-neon);
    transform: translateY(-4px);
  }

  .stat-num {
    font-family: var(--font-title);
    font-size: 1.8rem;
    color: var(--azul-neon);
    font-weight: 700;
    display: block;
  }

  .stat-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.12em;
    color: var(--blanco-suave);
  }

  .hero-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    max-width: 1000px;
    width: 100%;
    margin-bottom: 3rem;
  }

  .hero-card {
    background: var(--gris-tech);
    border: 1px solid var(--azul-borde);
    border-radius: 10px;
    padding: 1.5rem;
    text-align: left;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    color: inherit;
    display: block;
  }

  .hero-card:hover {
    border-color: var(--azul-neon);
    background: rgba(0, 212, 255, 0.06);
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 212, 255, 0.1);
  }

  .hero-card-icon {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    display: block;
  }

  .hero-card h3 {
    font-family: var(--font-title);
    font-size: 0.75rem;
    color: var(--azul-neon);
    letter-spacing: 0.05em;
    margin-bottom: 0.4rem;
  }

  .hero-card p {
    font-size: 0.78rem;
    color: var(--blanco-suave);
    line-height: 1.5;
  }

  /* ── SECTION ── */
  .section {
    max-width: 1100px;
    margin: 0 auto;
    padding: 4rem 2rem;
  }

  .section-title {
    font-family: var(--font-title);
    font-size: clamp(1.2rem, 3vw, 2rem);
    color: var(--blanco);
    margin-bottom: 0.5rem;
    position: relative;
  }

  .section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 2px;
    background: var(--azul-neon);
    margin-top: 0.5rem;
    box-shadow: 0 0 10px var(--azul-neon);
  }

  .section-sub {
    color: var(--blanco-suave);
    font-size: 0.9rem;
    margin-bottom: 2.5rem;
    max-width: 700px;
  }

  /* ── SPEAKERS ── */
  .speakers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
  }

  .speaker-card {
    background: var(--gris-tech);
    border: 1px solid var(--azul-borde);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.3s;
  }

  .speaker-card:hover {
    border-color: var(--azul-brillante);
    box-shadow: 0 0 25px rgba(0, 170, 255, 0.1);
    transform: translateY(-4px);
  }

  .speaker-avatar {
    width: 100%;
    height: 250px;
    border-radius: 8px;
    object-fit: cover;
    background-color: var(--azul-oscuro);
    margin-bottom: 1.2rem;
    border: 1px solid var(--azul-borde);
  }

  .speaker-name {
    font-family: var(--font-title);
    font-size: 0.85rem;
    color: var(--azul-neon);
    margin-bottom: 0.5rem;
    letter-spacing: 0.05em;
  }

  .speaker-desc {
    font-size: 0.8rem;
    color: var(--blanco-suave);
    line-height: 1.6;
  }

  /* ── COMITES ── */
  .comite-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
  }

  .comite-card {
    background: var(--gris-tech);
    border: 1px solid var(--azul-borde);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.3s;
    text-align: center;
  }

  .comite-card:hover {
    border-color: var(--azul-brillante);
    box-shadow: 0 0 25px rgba(0, 170, 255, 0.1);
    transform: translateY(-4px);
  }

  .comite-avatar {
    width: 100%;
    height: 180px;
    border-radius: 8px;
    object-fit: cover;
    background-color: var(--azul-oscuro);
    margin-bottom: 1rem;
    border: 1px solid var(--azul-borde);
  }

  .comite-name {
    font-family: var(--font-title);
    font-size: 0.85rem;
    color: var(--azul-neon);
    margin-bottom: 0.3rem;
  }

  .comite-role {
    font-size: 0.75rem;
    color: var(--blanco-suave);
  }

  /* ── HOSPEDAJE ── */
  .hotel-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
  }

  .hotel-card {
    background: var(--gris-tech);
    border: 1px solid var(--azul-borde);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.3s;
    text-align: left;
    display: flex;
    flex-direction: column;
  }

  .hotel-card:hover {
    border-color: var(--azul-brillante);
    box-shadow: 0 0 25px rgba(0, 170, 255, 0.1);
    transform: translateY(-4px);
  }

  .hotel-image {
    width: 100%;
    height: 160px;
    object-fit: cover;
    border-radius: 6px;
    margin-bottom: 1rem;
    background-color: var(--azul-oscuro);
    border: 1px solid var(--azul-borde);
  }

  .hotel-name {
    font-family: var(--font-title);
    font-size: 0.9rem;
    color: var(--azul-neon);
    margin-bottom: 0.5rem;
    letter-spacing: 0.05em;
  }

  .hotel-info {
    font-size: 0.8rem;
    color: var(--blanco-suave);
    margin-bottom: 0.3rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }

  .hotel-info a {
    color: var(--blanco);
    text-decoration: none;
    transition: color 0.2s;
  }

  .hotel-info a:hover {
    color: var(--azul-brillante);
  }

  /* ── TRACKS ── */
  .tracks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1rem;
  }

  .track-card {
    background: var(--gris-tech);
    border: 1px solid var(--azul-borde);
    border-radius: 8px;
    padding: 1.2rem 1.4rem;
    transition: all 0.25s;
    cursor: default;
    position: relative;
    overflow: hidden;
  }

  .track-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: var(--azul-neon);
    opacity: 0;
    transition: opacity 0.3s;
  }

  .track-card:hover {
    border-color: var(--azul-neon);
    transform: translateX(4px);
  }

  .track-card:hover::before {
    opacity: 1;
  }

  .track-num {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--azul-brillante);
    letter-spacing: 0.12em;
    margin-bottom: 0.4rem;
  }

  .track-name {
    font-family: var(--font-title);
    font-size: 0.72rem;
    color: var(--blanco);
    letter-spacing: 0.04em;
    margin-bottom: 0.6rem;
    line-height: 1.4;
  }

  .track-desc {
    font-size: 0.73rem;
    color: var(--blanco-suave);
    line-height: 1.5;
  }

  /* ── INFO FOOTER BAND ── */
  .info-band {
    background: var(--azul-panel);
    border-top: 1px solid var(--azul-borde);
    border-bottom: 1px solid var(--azul-borde);
    padding: 2rem;
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    justify-content: center;
    text-align: center;
  }

  .info-label {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    color: var(--azul-neon);
    letter-spacing: 0.15em;
    margin-bottom: 0.3rem;
  }

  .info-value {
    font-size: 0.85rem;
    color: var(--blanco);
  }

  .info-value a {
    color: var(--azul-brillante);
    text-decoration: none;
  }

  .info-value a:hover {
    color: var(--azul-neon);
  }

  /* ── PANEL CARD ── */
  .panel-card {
    background: var(--gris-tech);
    border: 1px solid var(--azul-borde);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 1.5rem;
    transition: border-color 0.3s;
  }

  .panel-card:hover {
    border-color: var(--azul-brillante);
  }

  .panel-card h2,
  .panel-card h3 {
    font-family: var(--font-title);
    color: var(--azul-neon);
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
    font-size: 0.9rem;
  }

  .panel-card h2 {
    font-size: 1.1rem;
  }

  .panel-card p {
    color: var(--blanco-suave);
    font-size: 0.85rem;
    margin-bottom: 0.8rem;
    line-height: 1.7;
  }

  .panel-card ul {
    list-style: none;
    padding: 0;
  }

  .panel-card ul li {
    color: var(--blanco-suave);
    font-size: 0.83rem;
    padding: 0.4rem 0;
    border-bottom: 1px solid rgba(0, 170, 255, 0.08);
    padding-left: 1rem;
    position: relative;
    line-height: 1.5;
  }

  .panel-card ul li::before {
    content: '▸';
    color: var(--azul-neon);
    position: absolute;
    left: 0;
    font-size: 0.7rem;
  }

  .panel-card strong {
    color: var(--azul-brillante);
    font-weight: 500;
  }

  /* ── BUTTON ── */
  .btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: transparent;
    border: 1px solid var(--azul-neon);
    color: var(--azul-neon);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    padding: 10px 20px;
    border-radius: 6px;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.25s;
    margin-top: 0.5rem;
  }

  .btn:hover {
    background: var(--azul-neon);
    color: var(--azul-oscuro);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.4);
  }

  .btn-solid {
    background: var(--azul-acento);
    border-color: var(--azul-acento);
    color: #fff;
  }

  .btn-solid:hover {
    background: var(--azul-brillante);
    border-color: var(--azul-brillante);
    color: var(--azul-oscuro);
  }

  /* ── TABLE ── */
  .futu-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
    margin-top: 1rem;
  }

  .futu-table th {
    background: var(--azul-panel);
    color: var(--azul-neon);
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.12em;
    padding: 0.8rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--azul-borde);
  }

  .futu-table td {
    padding: 0.85rem 1rem;
    border-bottom: 1px solid rgba(0, 170, 255, 0.08);
    color: var(--blanco-suave);
    vertical-align: middle;
  }

  .futu-table tr:hover td {
    background: var(--azul-glow);
  }

  .futu-table .price {
    font-family: var(--font-title);
    color: var(--azul-neon);
    font-size: 0.9rem;
  }

  /* ── COMITE GRID ── */
  .comite-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
  }

  .comite-card {
    background: var(--gris-tech);
    border: 1px solid var(--azul-borde);
    border-radius: 10px;
    padding: 1.2rem;
    text-align: center;
    transition: all 0.3s;
  }

  .comite-card:hover {
    border-color: var(--azul-neon);
    transform: translateY(-3px);
  }

  .comite-initial {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: linear-gradient(135deg, #0d6efd, #00d4ff);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-title);
    font-size: 1.1rem;
    color: #fff;
    margin: 0 auto 0.7rem;
    border: 1.5px solid var(--azul-neon);
  }

  .comite-name {
    font-family: var(--font-title);
    font-size: 0.7rem;
    color: var(--blanco);
    letter-spacing: 0.04em;
    margin-bottom: 0.3rem;
    line-height: 1.3;
  }

  .comite-role {
    font-size: 0.68rem;
    color: var(--azul-brillante);
    font-family: var(--font-mono);
  }

  /* ── CIENTIF CARD ── */
  .cientif-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
  }

  .cientif-card {
    background: var(--gris-tech);
    border: 1px solid var(--azul-borde);
    border-radius: 10px;
    padding: 1.2rem;
    transition: all 0.3s;
    cursor: pointer;
  }

  .cientif-card:hover {
    border-color: var(--azul-brillante);
    box-shadow: 0 0 20px rgba(0, 170, 255, 0.1);
  }

  .cientif-name {
    font-family: var(--font-title);
    font-size: 0.72rem;
    color: var(--azul-neon);
    margin-bottom: 0.5rem;
    letter-spacing: 0.04em;
    line-height: 1.3;
  }

  .cientif-detail {
    font-size: 0.72rem;
    color: var(--blanco-suave);
    line-height: 1.5;
  }

  /* ── HOSPEDAJE ── */
  .hotel-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
  }

  .hotel-card {
    background: var(--gris-tech);
    border: 1px solid var(--azul-borde);
    border-radius: 12px;
    padding: 1.8rem;
    transition: all 0.3s;
  }

  .hotel-card:hover {
    border-color: var(--azul-brillante);
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0, 170, 255, 0.08);
  }

  .hotel-name {
    font-family: var(--font-title);
    font-size: 0.85rem;
    color: var(--azul-neon);
    margin-bottom: 0.8rem;
    letter-spacing: 0.05em;
  }

  .hotel-info {
    font-size: 0.78rem;
    color: var(--blanco-suave);
    margin-bottom: 0.4rem;
    display: flex;
    gap: 0.5rem;
    align-items: flex-start;
  }

  .hotel-info .icon {
    color: var(--azul-brillante);
    flex-shrink: 0;
  }

  .hotel-info a {
    color: var(--azul-brillante);
    text-decoration: none;
  }

  .hotel-info a:hover {
    color: var(--azul-neon);
  }

  /* ── CONTACT ── */
  .contact-form {
    background: var(--gris-tech);
    border: 1px solid var(--azul-borde);
    border-radius: 12px;
    padding: 2rem;
    max-width: 600px;
  }

  .form-group {
    margin-bottom: 1.2rem;
  }

  .form-group label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--azul-neon);
    letter-spacing: 0.12em;
    margin-bottom: 0.4rem;
  }

  .form-group input,
  .form-group textarea {
    width: 100%;
    background: rgba(0, 170, 255, 0.05);
    border: 1px solid var(--azul-borde);
    color: var(--blanco);
    font-family: var(--font-body);
    font-size: 0.85rem;
    padding: 0.7rem 1rem;
    border-radius: 6px;
    outline: none;
    transition: border-color 0.25s;
  }

  .form-group input:focus,
  .form-group textarea:focus {
    border-color: var(--azul-neon);
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.15);
  }

  .form-group textarea {
    min-height: 120px;
    resize: vertical;
  }

  /* ── FECHAS TIMELINE ── */
  .timeline {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1.5rem;
    position: relative;
    padding-left: 2rem;
  }

  .timeline::before {
    content: '';
    position: absolute;
    left: 7px;
    top: 4px;
    bottom: 4px;
    width: 2px;
    background: linear-gradient(to bottom, var(--azul-neon), transparent);
  }

  .timeline-item {
    position: relative;
    background: var(--gris-tech);
    border: 1px solid var(--azul-borde);
    border-radius: 8px;
    padding: 1rem 1.2rem;
    transition: border-color 0.3s;
  }

  .timeline-item:hover {
    border-color: var(--azul-neon);
  }

  .timeline-item::before {
    content: '';
    position: absolute;
    left: -1.7rem;
    top: 1.1rem;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--azul-neon);
    box-shadow: 0 0 8px var(--azul-neon);
  }

  .tl-fecha {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--azul-neon);
    letter-spacing: 0.12em;
    margin-bottom: 0.3rem;
  }

  .tl-title {
    font-family: var(--font-title);
    font-size: 0.8rem;
    color: var(--blanco);
    letter-spacing: 0.04em;
    margin-bottom: 0.3rem;
  }

  .tl-desc {
    font-size: 0.78rem;
    color: var(--blanco-suave);
    line-height: 1.5;
  }

  /* ── PAGE HEADER ── */
  .page-header {
    background: linear-gradient(180deg, rgba(0, 170, 255, 0.08) 0%, transparent 100%);
    border-bottom: 1px solid var(--azul-borde);
    padding: 3rem 2rem 2rem;
    text-align: center;
  }

  .page-header h1 {
    font-family: var(--font-title);
    font-size: clamp(1.4rem, 4vw, 2.5rem);
    color: var(--blanco);
    letter-spacing: 0.06em;
    margin-bottom: 0.5rem;
  }

  .page-header h1 span {
    color: var(--azul-neon);
  }

  .page-header p {
    color: var(--blanco-suave);
    font-size: 0.9rem;
    max-width: 600px;
    margin: 0 auto;
  }

  /* ── FOOTER ── */
  footer {
    background: var(--azul-panel);
    border-top: 1px solid var(--azul-borde);
    padding: 3rem 2rem 1.5rem;
    position: relative;
    z-index: 1;
  }

  .footer-grid {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
  }

  .footer-col h4 {
    font-family: var(--font-title);
    font-size: 0.7rem;
    color: var(--azul-neon);
    letter-spacing: 0.12em;
    margin-bottom: 1rem;
  }

  .footer-col p,
  .footer-col a {
    font-size: 0.78rem;
    color: var(--blanco-suave);
    text-decoration: none;
    display: block;
    margin-bottom: 0.4rem;
    transition: color 0.2s;
  }

  .footer-col a:hover {
    color: var(--azul-neon);
  }

  .footer-bottom {
    border-top: 1px solid var(--azul-borde);
    padding-top: 1rem;
    text-align: center;
    font-size: 0.7rem;
    color: rgba(232, 244, 255, 0.3);
    font-family: var(--font-mono);
    max-width: 1100px;
    margin: 0 auto;
  }

  /* ── SCANLINE EFFECT ── */
  .scanline {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background: repeating-linear-gradient(0deg,
        transparent,
        transparent 2px,
        rgba(0, 0, 0, 0.03) 2px,
        rgba(0, 0, 0, 0.03) 4px);
  }

  /* ── PROGRAMA placeholder ── */
  .programa-msg {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--blanco-suave);
  }

  .programa-msg .icon {
    font-size: 3rem;
    margin-bottom: 1rem;
  }

  .programa-msg h2 {
    font-family: var(--font-title);
    font-size: 1rem;
    color: var(--azul-neon);
    margin-bottom: 0.5rem;
    letter-spacing: 0.08em;
  }

  /* ── responsive ── */
  @media (max-width: 700px) {
    .nav-links {
      gap: 0;
    }

    .nav-links a {
      padding: 6px 7px;
      font-size: 0.62rem;
    }

    .hero-stats {
      gap: 1rem;
    }

    .hero-cards {
      grid-template-columns: 1fr 1fr;
    }
  }

  @media (max-width: 480px) {
    .hero-cards {
      grid-template-columns: 1fr;
    }
  }

  /* ── GLOW DIVIDER ── */
  .glow-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--azul-neon), transparent);
    margin: 0;
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.3);
  }

  .tag {
    display: inline-block;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    color: var(--azul-neon);
    font-family: var(--font-mono);
    font-size: 0.62rem;
    padding: 2px 8px;
    border-radius: 4px;
    letter-spacing: 0.08em;
    margin-right: 0.3rem;
    margin-bottom: 0.3rem;
  }

  /* ── AI CHATBOT UI ── */
  .ai-floating-btn {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 150;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
  }

  .ai-tooltip {
    display: none;
    padding: 0.5rem 1rem;
    background: var(--azul-panel);
    border: 1px solid var(--azul-borde);
    border-radius: 0.75rem;
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.1);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--blanco-suave);
    white-space: nowrap;
    transition: opacity 0.3s;
    opacity: 0;
    pointer-events: none;
  }

  @media (min-width: 640px) {
    .ai-tooltip {
      display: block;
    }
  }

  /* Clase para forzar la visibilidad del tooltip */
  .ai-tooltip.show-tooltip {
    opacity: 1;
    pointer-events: auto;
    display: block !important;
  }

  .ai-floating-btn:hover .ai-tooltip {
    opacity: 1;
    pointer-events: auto;
  }

  .ai-btn-icon {
    width: 4rem;
    height: 4rem;
    border-radius: 50%;
    background: linear-gradient(to right, var(--azul-acento), var(--azul-neon));
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 25px rgba(0, 212, 255, 0.3);
    transition: transform 0.3s;
    position: relative;
  }

  .ai-floating-btn:hover .ai-btn-icon {
    transform: scale(1.1);
  }

  .ai-btn-badge {
    position: absolute;
    top: -0.25rem;
    right: -0.25rem;
    width: 1rem;
    height: 1rem;
    background: #ef4444;
    border-radius: 50%;
    border: 2px solid var(--azul-oscuro);
    animation: ping 2s cubic-bezier(0, 0, 0.2, 1) infinite;
  }

  @keyframes ping {

    75%,
    100% {
      transform: scale(2);
      opacity: 0;
    }
  }

  .ai-chat-panel {
    position: fixed;
    bottom: 7rem;
    right: 1.5rem;
    width: 350px;
    height: 500px;
    background: #020617;
    border: 1px solid var(--azul-borde);
    border-radius: 1rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    z-index: 150;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: all 0.3s ease-out;
    transform-origin: bottom right;
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .ai-chat-hidden {
    opacity: 0;
    transform: translateY(2rem);
    pointer-events: none;
  }

  .ai-chat-header {
    background: linear-gradient(to right, #0f172a, #1e293b);
    padding: 1rem;
    border-bottom: 1px solid var(--azul-borde);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
  }

  .ai-chat-header-line {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 0.25rem;
    background: linear-gradient(to right, var(--azul-acento), var(--azul-neon));
  }

  .ai-chat-header-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
  }

  .ai-avatar {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    background: linear-gradient(to top right, var(--azul-neon), var(--azul-acento));
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
  }

  .ai-chat-header-info h3 {
    color: white;
    font-weight: 700;
    font-size: 0.875rem;
    margin-bottom: 0.1rem;
  }

  .ai-status {
    font-size: 0.625rem;
    color: var(--azul-neon);
    display: flex;
    align-items: center;
    gap: 0.25rem;
  }

  .ai-dot {
    width: 0.375rem;
    height: 0.375rem;
    border-radius: 50%;
    background: var(--azul-neon);
  }

  .pulse {
    animation: spin-pulse 2s infinite;
  }

  @keyframes spin-pulse {

    0%,
    100% {
      opacity: 1;
    }

    50% {
      opacity: .5;
    }
  }

  .ai-close-btn {
    background: none;
    border: none;
    color: var(--blanco-suave);
    cursor: pointer;
    transition: color 0.2s;
  }

  .ai-close-btn:hover {
    color: white;
  }

  .ai-chat-body {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    scrollbar-width: thin;
    scrollbar-color: var(--azul-borde) transparent;
  }

  .ai-msg-row {
    display: flex;
    justify-content: flex-start;
  }

  .ai-msg-row.user {
    justify-content: flex-end;
  }

  .ai-msg-bubble {
    max-width: 85%;
    padding: 0.75rem;
    font-size: 0.875rem;
    background: #1e293b;
    color: #f1f5f9;
    border-radius: 1rem;
    border-top-left-radius: 0;
    border: 1px solid var(--azul-borde);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  }

  .ai-msg-row.user .ai-msg-bubble {
    background: #0891b2;
    color: white;
    border-radius: 1rem;
    border-top-right-radius: 0;
    border: none;
  }

  .ai-chat-footer {
    padding: 0.75rem;
    background: #0f172a;
    border-top: 1px solid var(--azul-borde);
    position: relative;
  }

  .ai-chat-footer input {
    width: 100%;
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid var(--azul-borde);
    border-radius: 0.75rem;
    padding: 0.625rem 2.5rem 0.625rem 1rem;
    font-size: 0.875rem;
    color: white;
    outline: none;
    transition: border-color 0.2s;
  }

  .ai-chat-footer input:focus {
    border-color: var(--azul-neon);
  }

  .ai-send-btn {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--azul-neon);
    cursor: pointer;
    padding: 0.375rem;
    border-radius: 0.5rem;
    transition: background 0.2s;
  }

  .ai-send-btn:hover {
    background: #334155;
  }

  /* Loading dots AI */
  .ai-loader {
    display: flex;
    justify-content: flex-start;
  }

  .ai-loader svg {
    width: 1rem;
    height: 1rem;
    animation: spin 1s linear infinite;
    color: var(--azul-neon);
  }

  @keyframes spin {
    100% {
      transform: rotate(360deg);
    }
  }

  /* ── MOBILE OVERRIDES (al final para tener precedencia) ── */
  @media (max-width: 991px) {
    .page {
      padding-top: 0 !important;
    }

    .hero {
      min-height: auto;
      padding: 2rem 1.5rem;
    }

    .page-header {
      padding: 1.5rem 1.5rem 1rem;
    }

    /* Dropdown en móvil: siempre visible, sin hover ni JS */
    .nav-dropdown {
      position: static;
      display: flex;
      flex-direction: column;
      align-items: center;
    }

    .nav-dropdown-content {
      display: flex !important;
      flex-direction: row;
      flex-wrap: wrap;
      justify-content: center;
      position: static;
      background: transparent;
      border: none;
      box-shadow: none;
      min-width: unset;
      margin-top: 0;
      animation: none;
    }

    .nav-dropdown:hover .nav-dropdown-content {
      display: flex !important;
    }

    .nav-dropbtn {
      display: none; /* Oculta el botón "Más Información" en móvil */
    }
  }