/* CSS Reset & Base */
    :root {
      --primary: #6366f1;
      --primary-hover: #4f46e5;
      --secondary: #ec4899;
      --accent: #06b6d4;
      --dark: #0f172a;
      --dark-light: #1e293b;
      --text-main: #1e293b;
      --text-muted: #64748b;
      --bg-light: #f8fafc;
      --card-bg: #ffffff;
      --border-color: #e2e8f0;
      --container-width: 1200px;
    }

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

    html {
      scroll-behavior: smooth;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      background-color: var(--bg-light);
      color: var(--text-main);
      line-height: 1.6;
    }

    body {
      overflow-x: hidden;
      background-color: var(--bg-light);
    }

    a {
      color: var(--primary);
      text-decoration: none;
      transition: color 0.2s ease;
    }
    a:hover {
      color: var(--primary-hover);
    }

    /* Container Standard */
    .container {
      width: 100%;
      max-width: var(--container-width);
      margin: 0 auto;
      padding: 0 20px;
    }

    /* Header & Navigation */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border-color);
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }

    .brand-logo-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .ai-page-logo {
      height: 40px;
      width: auto;
      object-fit: contain;
    }

    .brand-name {
      font-size: 20px;
      font-weight: 800;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .nav-wrap {
      display: flex;
      align-items: center;
    }

    .nav-links {
      display: flex;
      gap: 0;
      align-items: center;
      list-style: none;
      margin: 0;
      padding: 0;
    }

    .nav-links li a {
      padding: 8px 12px;
      font-size: 14px;
      font-weight: 500;
      color: var(--dark-light);
      border-radius: 6px;
      white-space: nowrap;
    }

    .nav-links li a:hover {
      color: var(--primary);
      background-color: rgba(99, 102, 241, 0.06);
    }

    .header-cta-btn {
      display: inline-block;
      padding: 9px 20px;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: #ffffff !important;
      font-size: 14px;
      font-weight: 600;
      border-radius: 50px;
      box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
      transition: all 0.3s ease;
      margin-left: 15px;
    }

    .header-cta-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
    }

    .mobile-menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      color: var(--dark);
      cursor: pointer;
    }

    /* Section Styles */
    .section-block {
      padding: 80px 0;
      position: relative;
    }

    .section-bg-alt {
      background-color: #ffffff;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
    }

    .section-title-wrap {
      text-align: center;
      max-width: 750px;
      margin: 0 auto 50px;
    }

    .section-badge {
      display: inline-block;
      padding: 4px 14px;
      background: rgba(99, 102, 241, 0.1);
      color: var(--primary);
      font-size: 13px;
      font-weight: 700;
      border-radius: 20px;
      margin-bottom: 12px;
      text-transform: uppercase;
      letter-spacing: 1px;
    }

    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--dark);
      margin-bottom: 15px;
      line-height: 1.3;
    }

    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
    }

    /* Hero Section - strictly NO IMAGES */
    .hero-section {
      padding: 90px 0 70px;
      background: radial-gradient(circle at 50% 0%, rgba(236, 72, 153, 0.08), rgba(99, 102, 241, 0.05) 50%, rgba(248, 250, 252, 0) 100%);
      text-align: center;
      position: relative;
    }

    .hero-h1 {
      font-size: 40px;
      font-weight: 900;
      color: var(--dark);
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-h1 span {
      background: linear-gradient(135deg, #6366f1, #ec4899, #06b6d4);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-subtitle {
      font-size: 18px;
      color: var(--text-muted);
      max-width: 820px;
      margin: 0 auto 35px;
      line-height: 1.7;
    }

    .hero-actions {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 16px;
      margin-bottom: 45px;
      flex-wrap: wrap;
    }

    .btn-hero-primary {
      padding: 14px 34px;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: #ffffff !important;
      font-size: 16px;
      font-weight: 700;
      border-radius: 50px;
      box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
      transition: all 0.3s ease;
    }
    .btn-hero-primary:hover {
      transform: translateY(-3px);
      box-shadow: 0 12px 30px rgba(99, 102, 241, 0.55);
    }

    .btn-hero-secondary {
      padding: 14px 30px;
      background: #ffffff;
      color: var(--dark) !important;
      font-size: 16px;
      font-weight: 600;
      border-radius: 50px;
      border: 1px solid var(--border-color);
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
      transition: all 0.3s ease;
    }
    .btn-hero-secondary:hover {
      border-color: var(--primary);
      color: var(--primary) !important;
      transform: translateY(-2px);
    }

    /* Model Tag Clouds in Hero */
    .hero-models-wrap {
      max-width: 950px;
      margin: 0 auto;
      padding: 24px;
      background: rgba(255, 255, 255, 0.8);
      backdrop-filter: blur(8px);
      border: 1px solid rgba(99, 102, 241, 0.15);
      border-radius: 16px;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
    }

    .hero-models-label {
      font-size: 13px;
      font-weight: 700;
      color: var(--text-muted);
      margin-bottom: 12px;
      text-transform: uppercase;
    }

    .model-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      justify-content: center;
    }

    .model-pill {
      font-size: 12px;
      font-weight: 600;
      padding: 5px 12px;
      background: #ffffff;
      border: 1px solid var(--border-color);
      color: var(--dark-light);
      border-radius: 20px;
      transition: all 0.2s ease;
    }

    .model-pill:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: rgba(99, 102, 241, 0.05);
    }

    /* Stat Cards Banner */
    .stat-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 40px;
    }

    .stat-card {
      background: #ffffff;
      padding: 24px;
      border-radius: 16px;
      border: 1px solid var(--border-color);
      text-align: center;
      box-shadow: 0 4px 15px rgba(0,0,0,0.02);
      transition: transform 0.3s ease;
    }
    .stat-card:hover {
      transform: translateY(-4px);
    }

    .stat-num {
      font-size: 32px;
      font-weight: 900;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 6px;
    }

    .stat-desc {
      font-size: 14px;
      color: var(--text-muted);
    }

    /* Grid Layouts for Modules */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 30px;
    }

    .grid-4 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    /* Standard Card Component */
    .feature-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 28px;
      transition: all 0.3s ease;
      position: relative;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .feature-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: linear-gradient(90deg, var(--primary), var(--secondary));
      opacity: 0;
      transition: opacity 0.3s ease;
    }

    .feature-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
      border-color: rgba(99, 102, 241, 0.3);
    }

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

    .card-icon-badge {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(236, 72, 153, 0.1));
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      font-weight: bold;
      margin-bottom: 20px;
    }

    .card-h3 {
      font-size: 20px;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 12px;
    }

    .card-text {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* Comparison Table */
    .comparison-container {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 16px;
      overflow: hidden;
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.04);
    }

    .review-summary-header {
      background: linear-gradient(135deg, var(--dark), var(--dark-light));
      color: #ffffff;
      padding: 30px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 20px;
    }

    .review-score-box {
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .score-big {
      font-size: 48px;
      font-weight: 900;
      color: #f59e0b;
      line-height: 1;
    }

    .stars-icon {
      color: #f59e0b;
      font-size: 22px;
      letter-spacing: 2px;
    }

    .comp-table-wrap {
      overflow-x: auto;
    }

    .comp-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }

    .comp-table th, .comp-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
      font-size: 14px;
    }

    .comp-table th {
      background: #f1f5f9;
      color: var(--dark);
      font-weight: 700;
    }

    .comp-table tr:last-child td {
      border-bottom: none;
    }

    .highlight-cell {
      background: rgba(99, 102, 241, 0.04);
      font-weight: 700;
      color: var(--primary);
    }

    /* Step Timeline */
    .step-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .step-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 24px;
      position: relative;
    }

    .step-num {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: var(--primary);
      color: #ffffff;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
    }

    /* Cases Showcase & Image container handling */
    .case-card {
      background: #ffffff;
      border-radius: 16px;
      border: 1px solid var(--border-color);
      overflow: hidden;
      transition: all 0.3s ease;
    }

    .case-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
    }

    .case-img-wrap {
      width: 100%;
      aspect-ratio: 16/9;
      background: #e2e8f0;
      overflow: hidden;
    }

    .case-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }

    .case-card:hover .case-img-wrap img {
      transform: scale(1.05);
    }

    .case-content {
      padding: 20px;
    }

    .case-tag {
      font-size: 12px;
      color: var(--primary);
      font-weight: 700;
      text-transform: uppercase;
    }

    .case-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--dark);
      margin: 6px 0 10px;
    }

    /* Reviews Grid */
    .review-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 16px;
      padding: 24px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.02);
    }

    .review-user {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }

    .avatar-circle {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: bold;
    }

    .user-info h4 {
      font-size: 15px;
      color: var(--dark);
      font-weight: 700;
    }

    .user-info p {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* FAQ Accordion */
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .faq-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 12px;
      overflow: hidden;
    }

    .faq-question {
      width: 100%;
      padding: 18px 24px;
      background: none;
      border: none;
      text-align: left;
      font-size: 16px;
      font-weight: 700;
      color: var(--dark);
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
    }

    .faq-question::after {
      content: '+';
      font-size: 20px;
      color: var(--primary);
    }

    .faq-item.active .faq-question::after {
      content: '-';
    }

    .faq-answer {
      display: none;
      padding: 0 24px 20px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    .faq-item.active .faq-answer {
      display: block;
    }

    /* Form Design */
    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: start;
    }

    .contact-info-card {
      background: linear-gradient(135deg, var(--dark), var(--dark-light));
      color: #ffffff;
      border-radius: 20px;
      padding: 40px;
    }

    .contact-info-card h3 {
      font-size: 24px;
      margin-bottom: 20px;
    }

    .contact-detail-item {
      display: flex;
      align-items: center;
      gap: 15px;
      margin-bottom: 20px;
      font-size: 15px;
    }

    .qr-container {
      margin-top: 30px;
      padding: 20px;
      background: rgba(255, 255, 255, 0.1);
      border-radius: 12px;
      display: inline-block;
      text-align: center;
    }

    .qr-container img {
      width: 140px;
      height: 140px;
      border-radius: 8px;
      display: block;
      margin: 0 auto 10px;
    }

    .form-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: 20px;
      padding: 36px;
      box-shadow: 0 8px 30px rgba(0, 0, 0, 0.04);
    }

    .form-group {
      margin-bottom: 20px;
    }

    .form-group label {
      display: block;
      font-size: 14px;
      font-weight: 600;
      color: var(--dark);
      margin-bottom: 8px;
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-color);
      border-radius: 8px;
      font-size: 14px;
      transition: border-color 0.2s ease;
    }

    .form-control:focus {
      outline: none;
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 100px;
    }

    .btn-submit {
      width: 100%;
      padding: 14px;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: #ffffff;
      font-size: 16px;
      font-weight: 700;
      border: none;
      border-radius: 8px;
      cursor: pointer;
      box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
      transition: all 0.3s ease;
    }

    .btn-submit:hover {
      opacity: 0.95;
      transform: translateY(-1px);
    }

    /* Article List Styling */
    .article-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .article-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      padding: 16px 20px;
      border-radius: 12px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      transition: background-color 0.2s ease;
    }
    .article-item:hover {
      background-color: rgba(99, 102, 241, 0.03);
    }

    .article-item a {
      color: var(--dark);
      font-weight: 600;
      font-size: 15px;
    }
    .article-item a:hover {
      color: var(--primary);
    }

    /* Footer */
    .site-footer {
      background: var(--dark);
      color: #94a3b8;
      padding: 60px 0 30px;
      border-top: 1px solid var(--dark-light);
    }

    .footer-content {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 40px;
    }

    .footer-brand h4 {
      color: #ffffff;
      font-size: 20px;
      margin-bottom: 12px;
    }

    .footer-links-group h5 {
      color: #ffffff;
      font-size: 15px;
      margin-bottom: 16px;
    }

    .footer-links-group ul {
      list-style: none;
    }

    .footer-links-group ul li {
      margin-bottom: 8px;
    }

    .footer-links-group ul li a {
      color: #94a3b8;
      font-size: 14px;
    }

    .footer-links-group ul li a:hover {
      color: #ffffff;
    }

    .friend-links-box {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding-top: 25px;
      margin-bottom: 25px;
      display: flex;
      flex-wrap: wrap;
      gap: 15px;
      align-items: center;
    }

    .friend-links-box span {
      color: #ffffff;
      font-size: 13px;
      font-weight: 600;
    }

    .friend-links-box a {
      color: #94a3b8;
      font-size: 13px;
    }

    .friend-links-box a:hover {
      color: var(--primary);
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 25px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
      flex-wrap: wrap;
      gap: 15px;
    }

    /* Floating Widget */
    .floating-widget {
      position: fixed;
      right: 25px;
      bottom: 25px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .float-btn {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: var(--primary);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
      font-size: 20px;
      cursor: pointer;
      transition: transform 0.2s ease;
    }

    .float-btn:hover {
      transform: scale(1.1);
    }

    /* Responsive Queries */
    @media (max-width: 992px) {
      .grid-3, .grid-4, .stat-grid, .step-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .contact-grid {
        grid-template-columns: 1fr;
      }
      .footer-content {
        grid-template-columns: 1fr;
      }
      .hero-h1 {
        font-size: 30px;
      }
    }

    @media (max-width: 768px) {
      .mobile-menu-toggle {
        display: block;
      }
      .nav-wrap {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        padding: 20px;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        border-bottom: 1px solid var(--border-color);
      }
      .nav-wrap.active {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
      }
      .nav-links {
        flex-direction: column;
        width: 100%;
        align-items: flex-start;
      }
      .nav-links li {
        width: 100%;
      }
      .nav-links li a {
        display: block;
        padding: 10px 0;
      }
      .header-cta-btn {
        margin: 15px 0 0 0;
        width: 100%;
        text-align: center;
      }
      .grid-2, .grid-3, .grid-4, .stat-grid, .step-grid {
        grid-template-columns: 1fr;
      }
    }