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

    :root {
      --blue: #1B3A6B;
      --blue-accent: #00903D;
      --blue-light: #499866;
      --dark: #0F172A;
      --gray: #64748B;
      --gray-light: #F1F5F9;
      --white: #FFFFFF;
      --radius: 14px;
      --transition: 0.25s cubic-bezier(.4,0,.2,1);
    }

    html { scroll-behavior: smooth; }

    body {
      font-family: 'Montserrat', Arial, Helvetica, sans-serif;
      color: var(--dark);
      background: #fff;
      overflow-x: hidden;
    }

    /* ── NAV ── */
    nav {
      position: absolute;
      top: 0; left: 0; right: 0;
      z-index: 10;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 18px 48px;
    }

    .nav-logo img {
      height: 54px;
      width: auto;
      filter: brightness(0) invert(1);
      object-fit: contain;
    }

    .nav-actions { display: flex; gap: 12px; align-items: center; }

    .btn-ghost {
      background: transparent;
      border: none;
      color: #fff;
      font-family: 'Montserrat', Arial, Helvetica, sans-serif;
      font-size: 14px;
      font-weight: 600;
      cursor: pointer;
      padding: 8px 16px;
      border-radius: 8px;
      transition: background var(--transition);
    }
    .btn-ghost:hover { background: rgba(255,255,255,.15); }

    .btn-outline {
      background: transparent;
      border: 2px solid #fff;
      color: #fff;
      font-family: 'Montserrat', Arial, Helvetica, sans-serif;
      font-size: 14px;
      font-weight: 700;
      cursor: pointer;
      padding: 8px 20px;
      border-radius: 8px;
      transition: all var(--transition);
    }
    .btn-outline:hover { background: #fff; color: var(--dark); }

    /* ── HERO ── */
    .hero {
      position: relative;
      height: 100vh;
      min-height: 560px;
      display: flex;
      align-items: center;
      overflow: hidden;
    }

    .hero-bg {
      position: absolute;
      inset: 0;
      background: url('img/Fondo.jpeg') center/cover no-repeat;
      filter: brightness(.52);
      transform: scale(1.04);
      animation: slowzoom 18s ease-in-out infinite alternate;
    }
    @keyframes slowzoom {
      from { transform: scale(1.04); }
      to   { transform: scale(1.12); }
    }

    .hero-content {
      position: relative;
      z-index: 2;
      padding: 0 48px 0 140px;
      max-width: 62%;
      animation: fadeUp .9s ease both;
    }
    @keyframes fadeUp {
      from { opacity: 0; transform: translateY(32px); }
      to   { opacity: 1; transform: translateY(0); }
    }

    .hero-content h1 {
      font-family: 'Montserrat', Arial, Helvetica, sans-serif;
      font-size: clamp(38px, 5.5vw, 78px);
      font-weight: 800;
      color: #fff;
      line-height: 1.1;
      letter-spacing: -1.5px;
      margin-bottom: 18px;
    }

    .hero-content p {
      font-size: clamp(15px, 1.8vw, 19px);
      font-weight: 500;
      color: rgba(255,255,255,.88);
      margin-bottom: 32px;
      max-width: 100%;
      line-height: 1.6;
    }

    .btn-primary {
      display: inline-block;
      background: var(--blue-accent);
      color: #fff;
      font-family: 'Montserrat', Arial, Helvetica, sans-serif;
      font-size: 15px;
      font-weight: 700;
      border: none;
      border-radius: 10px;
      padding: 14px 28px;
      cursor: pointer;
      text-decoration: none;
      transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
      box-shadow: 0 4px 24px rgba(54, 180, 107, 0.265);
    }
    .btn-primary:hover {
      background: var(--blue-light);
      transform: translateY(-2px);
      box-shadow: 0 8px 32px rgba(37, 235, 126, 0.5);
    }

    /* ── LEARN SECTION ── */
    .learn {
      background: var(--gray-light);
      padding: 64px 48px 80px;
    }

    .learn-top {
      display: flex;
      justify-content: flex-end;
      margin-bottom: 36px;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
    }

    /* Search */
    .search-wrap {
      width: 100%;
      max-width: 380px;
      position: relative;
    }
    .search-wrap input {
      width: 100%;
      padding: 12px 20px 12px 44px;
      border: 2px solid #CBD5E1;
      border-radius: 999px;
      font-family: 'Montserrat', Arial, Helvetica, sans-serif;
      font-size: 14px;
      color: var(--dark);
      background: #fff;
      outline: none;
      transition: border-color var(--transition);
    }
    .search-wrap input:focus { border-color: var(--blue-accent); }
    .search-wrap input::placeholder { color: #94A3B8; }
    .search-icon {
      position: absolute;
      left: 16px; top: 50%;
      transform: translateY(-50%);
      color: #94A3B8;
      pointer-events: none;
    }

    /* Grid */
    .video-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
      max-width: 1200px;
      margin: 0 auto;
    }

    .video-card {
      display: flex;
      gap: 16px;
      background: #fff;
      border-radius: var(--radius);
      padding: 16px;
      cursor: pointer;
      border: 2px solid transparent;
      transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
      animation: fadeUp .5s ease both;
    }
    .video-card:hover {
      border-color: var(--blue-accent);
      box-shadow: 0 6px 28px rgba(37,99,235,.12);
      transform: translateY(-3px);
    }

    .video-thumb {
      position: relative;
      width: 200px;
      min-width: 200px;
      height: 130px;
      border-radius: 10px;
      overflow: hidden;
      background: #CBD5E1;
    }
    .video-thumb img {
      width: 100%; height: 100%;
      object-fit: cover;
      transition: transform .4s ease;
    }
    .video-card:hover .video-thumb img { transform: scale(1.06); }

    .play-overlay {
      position: absolute;
      inset: 0;
      display: flex;
      align-items: center;
      justify-content: center;
      background: rgba(15,23,42,.28);
      opacity: 0;
      transition: opacity var(--transition);
    }
    .video-card:hover .play-overlay { opacity: 1; }
    .play-icon {
      width: 40px; height: 40px;
      background: rgba(255,255,255,.92);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .play-icon svg { margin-left: 3px; }

    .video-info { flex: 1; display: flex; flex-direction: column; gap: 6px; }
    .video-info h3 {
      font-family: 'Montserrat', Arial, Helvetica, sans-serif;
      font-size: 14px;
      font-weight: 700;
      color: var(--dark);
      line-height: 1.35;
    }
    .video-info p {
      font-family: Arial, Helvetica, sans-serif;
      font-size: 13px;
      color: var(--gray);
      line-height: 1.5;
      display: -webkit-box;
      -webkit-line-clamp: 4;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    /* No results */
    .no-results {
      grid-column: 1/-1;
      text-align: center;
      padding: 60px 0;
      color: var(--gray);
      font-size: 16px;
      font-family: Arial, Helvetica, sans-serif;
    }

    /* Pagination */
    .pagination {
      display: flex;
      justify-content: center;
      gap: 8px;
      margin-top: 40px;
    }
    .page-btn {
      width: 36px; height: 36px;
      border-radius: 50%;
      border: 2px solid #CBD5E1;
      background: #fff;
      font-family: 'Montserrat', Arial, Helvetica, sans-serif;
      font-size: 13px;
      font-weight: 700;
      color: var(--gray);
      cursor: pointer;
      transition: all var(--transition);
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .page-btn.active {
      background: var(--blue-accent);
      border-color: var(--blue-accent);
      color: #fff;
      box-shadow: 0 2px 12px rgba(37,99,235,.35);
    }
    .page-btn:hover:not(.active) {
      border-color: var(--blue-accent);
      color: var(--blue-accent);
    }

    /* ── MODAL ── */
    .modal-overlay {
      position: fixed;
      inset: 0;
      background: rgba(15,23,42,.8);
      z-index: 100;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 24px;
      backdrop-filter: blur(6px);
      opacity: 0;
      pointer-events: none;
      transition: opacity var(--transition);
    }
    .modal-overlay.open {
      opacity: 1;
      pointer-events: all;
    }
    .modal {
      background: var(--dark);
      border-radius: 16px;
      width: 100%;
      max-width: 860px;
      overflow: hidden;
      transform: scale(.94);
      transition: transform var(--transition);
      box-shadow: 0 24px 80px rgba(0,0,0,.5);
    }
    .modal-overlay.open .modal { transform: scale(1); }

    .modal-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 18px 22px;
    }
    .modal-title {
      font-family: 'Montserrat', Arial, Helvetica, sans-serif;
      font-size: 15px;
      font-weight: 700;
      color: #fff;
      flex: 1;
      margin-right: 12px;
    }
    .modal-close {
      width: 32px; height: 32px;
      border-radius: 50%;
      border: none;
      background: rgba(255,255,255,.12);
      color: #fff;
      font-size: 18px;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: background var(--transition);
      flex-shrink: 0;
    }
    .modal-close:hover { background: rgba(255,255,255,.22); }

    .modal-video {
      position: relative;
      width: 100%;
      padding-top: 56.25%;
      background: #000;
    }
    .modal-video iframe {
      position: absolute;
      inset: 0;
      width: 100%; height: 100%;
      border: none;
    }

    /* Responsive */
    @media (max-width: 900px) {
      .video-grid { grid-template-columns: 1fr; }
    }
    @media (max-width: 700px) {
      .hero-content { padding: 0 24px 0 24px; }
    }
    @media (max-width: 600px) {
      nav { padding: 18px 20px; }
      .learn { padding: 48px 20px 60px; }
      .video-thumb { width: 120px; min-width: 120px; height: 90px; }
    }