/**
 * Module CSS: 36-extended-features-css.css
 * Trích nguyên văn dòng 1702-2116 của pctech-homepage.css gốc.
 * Không đổi nội dung — chỉ tách file theo đúng marker sẵn có trong code gốc.
 */
    /* ── Extended features CSS ── */
    .hero-video-bg {
      position: absolute;
      inset: 0;
      z-index: 0;
      overflow: hidden;
    }
    .hero-video-bg img {
      width: 100%; height: 100%;
      object-fit: cover;
      opacity: 0.25;
      animation: kenBurns 20s ease-in-out infinite alternate;
    }
    @keyframes kenBurns {
      0% { transform: scale(1) translate(0, 0); }
      100% { transform: scale(1.12) translate(-2%, -1%); }
    }
    .promo-countdown {
      background: linear-gradient(90deg, var(--orange-dark), var(--orange), var(--orange-dark));
      color: var(--white);
      padding: 16px 0;
      position: relative;
      overflow: hidden;
    }
    .promo-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
    }
    .promo-text { font-weight: 700; font-size: 0.95rem; }
    .promo-text strong { font-size: 1.1rem; }
    #countdown { display: flex; align-items: center; gap: 6px; }
    .cd-unit {
      background: rgba(0,0,0,0.25);
      border-radius: 8px;
      padding: 6px 10px;
      text-align: center;
      min-width: 48px;
    }
    .cd-unit span { display: block; font-size: 1.25rem; font-weight: 800; line-height: 1; }
    .cd-unit small { font-size: 0.65rem; opacity: 0.85; }
    .cd-sep { font-weight: 800; font-size: 1.1rem; opacity: 0.7; }
    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .pricing-card {
      background: var(--white);
      border-radius: var(--radius);
      border: 2px solid var(--gray-200);
      padding: 32px 24px;
      text-align: center;
      transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
      position: relative;
    }
    .pricing-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--orange); }
    .pricing-card.featured {
      border-color: var(--orange);
      background: linear-gradient(180deg, var(--orange-light), var(--white));
      transform: scale(1.03);
    }
    .pricing-card .price-badge {
      position: absolute;
      top: -12px; left: 50%;
      transform: translateX(-50%);
      background: var(--orange);
      color: var(--white);
      font-size: 0.7rem;
      font-weight: 700;
      padding: 4px 14px;
      border-radius: 50px;
    }
    .pricing-card h3 { font-size: 1.15rem; color: var(--blue-dark); margin-bottom: 8px; }
    .pricing-price { font-size: 1.75rem; font-weight: 800; color: var(--orange); margin: 12px 0; }
    .pricing-price small { font-size: 0.85rem; color: var(--gray-500); font-weight: 500; }
    .pricing-features { text-align: left; margin: 20px 0; font-size: 0.88rem; }
    .pricing-features li { padding: 6px 0; border-bottom: 1px solid var(--gray-100); color: var(--gray-700); }
    .pricing-features li::before { content: '✓ '; color: var(--green); font-weight: 700; }
    .ba-slider {
      position: relative;
      height: 360px;
      border-radius: var(--radius);
      overflow: hidden;
      cursor: ew-resize;
      user-select: none;
      box-shadow: var(--shadow-lg);
      margin: 40px 0;
    }
    .ba-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
    .ba-after { z-index: 2; clip-path: inset(0 50% 0 0); }
    .ba-label {
      position: absolute;
      top: 16px;
      padding: 6px 14px;
      background: rgba(0,0,0,0.6);
      color: var(--white);
      font-size: 0.8rem;
      font-weight: 700;
      border-radius: 6px;
      z-index: 4;
    }
    .ba-label.before { left: 16px; }
    .ba-label.after { right: 16px; }
    .ba-handle {
      position: absolute;
      top: 0; bottom: 0;
      left: 50%;
      width: 4px;
      background: var(--white);
      z-index: 5;
      transform: translateX(-50%);
      box-shadow: 0 0 12px rgba(0,0,0,0.4);
    }
    .ba-handle::after {
      content: '⟷';
      position: absolute;
      top: 50%; left: 50%;
      transform: translate(-50%, -50%);
      width: 40px; height: 40px;
      background: var(--orange);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1rem;
      color: var(--white);
      box-shadow: var(--shadow-lg);
    }
    .track-section { background: var(--gray-50); }
    .track-box {
      max-width: 560px;
      margin: 0 auto;
      background: var(--white);
      border-radius: var(--radius);
      padding: 32px;
      box-shadow: var(--shadow);
      border: 2px solid var(--gray-200);
    }
    .track-form { display: flex; gap: 12px; flex-wrap: wrap; }
    .track-form input {
      flex: 1;
      min-width: 200px;
      padding: 14px 18px;
      border: 2px solid var(--gray-200);
      border-radius: var(--radius-sm);
      font-family: inherit;
      font-size: 0.95rem;
    }
    .track-form input:focus { outline: none; border-color: var(--blue); }
    .track-result {
      margin-top: 20px;
      padding: 20px;
      background: var(--blue-light);
      border-radius: var(--radius-sm);
      border-left: 4px solid var(--green);
    }
    .track-result.track-error { border-left-color: #ef4444; background: #fef2f2; }
    .track-bar { height: 8px; background: var(--gray-200); border-radius: 4px; margin: 12px 0 6px; overflow: hidden; }
    .track-fill { height: 100%; background: linear-gradient(90deg, var(--green), var(--orange)); border-radius: 4px; transition: width 1s ease; }
    .track-status { font-weight: 800; color: var(--blue-dark); font-size: 1.1rem; }
    .blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
    .blog-card {
      background: var(--white);
      border-radius: var(--radius);
      padding: 0;
      border: 1px solid var(--gray-200);
      transition: transform 0.3s, box-shadow 0.3s;
      overflow: hidden;
    }
    .blog-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
    .blog-thumb {
      width: 100%;
      height: 180px;
      object-fit: cover;
      display: block;
      transition: transform 0.4s;
    }
    .blog-card:hover .blog-thumb { transform: scale(1.04); }
    .blog-card-body { padding: 20px 22px 22px; }
    .blog-tag { font-size: 0.72rem; font-weight: 700; color: var(--orange); text-transform: uppercase; margin-bottom: 8px; }
    .blog-card h3 { font-size: 1rem; color: var(--blue-dark); margin-bottom: 10px; line-height: 1.4; }
    .blog-meta { font-size: 0.8rem; color: var(--gray-500); margin-bottom: 12px; }
    .local-seo-grid { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
    .local-seo-link {
      padding: 10px 18px;
      background: var(--white);
      border: 2px solid var(--gray-200);
      border-radius: 50px;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--blue-dark);
      transition: all 0.25s;
    }
    .local-seo-link:hover { border-color: var(--orange); background: var(--orange-light); color: var(--orange-dark); }
    .brands-section { padding: 36px 0; background: var(--gray-50); overflow: hidden; }
    .brands-marquee {
      overflow: hidden;
      margin-top: 32px;
      -webkit-mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
      mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
    }
    .brands-track {
      display: flex;
      align-items: center;
      gap: 64px;
      width: max-content;
      animation: brandsTicker 40s linear infinite;
    }
    .brands-track:hover { animation-play-state: paused; }
    @keyframes brandsTicker {
      0% { transform: translateX(0); }
      100% { transform: translateX(-50%); }
    }
    .brand-logo-item {
      flex-shrink: 0;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 12px 20px;
      background: var(--white);
      border-radius: var(--radius-sm);
      border: 1px solid var(--gray-200);
      min-width: 140px;
      height: 72px;
      box-shadow: var(--shadow);
    }
    .brand-logo-item img {
      max-height: 36px;
      max-width: 110px;
      width: auto;
      object-fit: contain;
      filter: grayscale(30%);
      opacity: 0.85;
      transition: filter 0.3s, opacity 0.3s;
    }
    .brand-logo-item:hover img { filter: none; opacity: 1; }
    .brand-item {
      padding: 16px 28px;
      background: var(--white);
      border-radius: var(--radius-sm);
      border: 1px solid var(--gray-200);
      font-weight: 800;
      font-size: 1rem;
      color: var(--blue-dark);
      opacity: 0.75;
      transition: opacity 0.3s, transform 0.3s;
    }
    .brand-item:hover { opacity: 1; transform: scale(1.05); }
    .map-wrap {
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-lg);
      border: 3px solid var(--white);
      margin-top: 32px;
      height: 400px;
    }
    .map-wrap iframe { width: 100%; height: 100%; border: 0; }
    .video-testi {
      position: relative;
      border-radius: var(--radius);
      overflow: hidden;
      aspect-ratio: 16/9;
      background: var(--blue-deeper);
      box-shadow: var(--shadow-lg);
    }
    .video-testi-poster { width: 100%; height: 100%; object-fit: cover; }
    .video-testi-poster.hidden { display: none; }
    .video-testi iframe { width: 100%; height: 100%; border: 0; }
    .video-testi-play {
      position: absolute;
      inset: 0;
      display: flex;
      align-items: center;
      justify-content: center;
      background: rgba(4,26,53,0.4);
      border: none;
      cursor: pointer;
      transition: background 0.3s;
    }
    .video-testi-play:hover { background: rgba(4,26,53,0.55); }
    .video-testi-play span {
      width: 72px; height: 72px;
      background: var(--orange);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.8rem;
      color: var(--white);
      box-shadow: var(--shadow-glow);
    }
    .sticky-cta {
      position: fixed;
      bottom: 0; left: 0; right: 0;
      z-index: 9998;
      background: var(--blue-deeper);
      border-top: 2px solid var(--orange);
      padding: 10px 12px;
      padding-bottom: calc(10px + env(safe-area-inset-bottom, 0px));
      display: none;
      transform: translateY(100%);
      transition: transform 0.35s ease;
    }
    .sticky-cta.visible { transform: translateY(0); }
    .sticky-cta-inner { display: flex; gap: 8px; max-width: 600px; margin: 0 auto; }
    .sticky-cta a {
      flex: 1;
      text-align: center;
      padding: 12px 8px;
      border-radius: 10px;
      font-size: 0.82rem;
      font-weight: 700;
      color: var(--white);
    }
    .sticky-cta .sc-call { background: #22c55e; }
    .sticky-cta .sc-zalo { background: var(--zalo); }
    .sticky-cta .sc-messenger { background: var(--messenger); }
    @media (max-width: 768px) { .sticky-cta { display: block; } }
    .modal-overlay {
      position: fixed;
      inset: 0;
      background: rgba(4, 26, 53, 0.75);
      backdrop-filter: blur(6px);
      z-index: 10001;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 20px;
      opacity: 0;
      visibility: hidden;
      transition: opacity 0.3s, visibility 0.3s;
    }
    .modal-overlay.open { opacity: 1; visibility: visible; }
    .modal {
      background: var(--white);
      border-radius: var(--radius);
      width: min(520px, 100%);
      max-height: 90vh;
      overflow-y: auto;
      padding: 32px;
      position: relative;
      transform: scale(0.9) translateY(20px);
      transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
      box-shadow: var(--shadow-lg);
    }
    .modal-overlay.open .modal { transform: scale(1) translateY(0); }
    .modal-close {
      position: absolute;
      top: 16px; right: 16px;
      width: 36px; height: 36px;
      border: none;
      background: var(--gray-100);
      border-radius: 50%;
      cursor: pointer;
      font-size: 1.2rem;
      color: var(--gray-700);
    }
    .modal h2 { font-size: 1.35rem; color: var(--blue-dark); margin-bottom: 8px; }
    .modal .modal-desc { font-size: 0.9rem; color: var(--gray-500); margin-bottom: 24px; }
    .form-group { margin-bottom: 16px; }
    .form-group label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--blue-dark); margin-bottom: 6px; }
    .form-group input, .form-group select, .form-group textarea {
      width: 100%;
      padding: 12px 14px;
      border: 2px solid var(--gray-200);
      border-radius: var(--radius-sm);
      font-family: inherit;
      font-size: 0.95rem;
    }
    .form-group input:focus, .form-group select:focus, .form-group textarea:focus {
      outline: none;
      border-color: var(--blue);
    }
    .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
    .quote-estimate {
      background: var(--orange-light);
      border: 1px solid var(--orange);
      border-radius: var(--radius-sm);
      padding: 12px 16px;
      font-size: 0.88rem;
      margin-bottom: 16px;
      color: var(--gray-700);
    }
    .quote-estimate span { color: var(--orange-dark); font-weight: 700; }
    .lead-toast {
      position: fixed;
      top: calc(var(--header-h) + 16px);
      right: 20px;
      z-index: 10002;
      background: var(--green);
      color: var(--white);
      padding: 14px 20px;
      border-radius: 12px;
      font-size: 0.9rem;
      box-shadow: var(--shadow-lg);
      transform: translateX(120%);
      transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    }
    .lead-toast.show { transform: translateX(0); }
    .pwa-install-btn {
      margin-top: 12px;
      width: 100%;
      padding: 10px;
      background: var(--blue-light);
      border: 2px dashed var(--blue);
      border-radius: var(--radius-sm);
      font-family: inherit;
      font-weight: 600;
      color: var(--blue-dark);
      cursor: pointer;
    }