body {
      background: #f5f7fa;
      font-family: 'Segoe UI', sans-serif;
      font-size: 16px;
   }
   .topbar {
      background: #0d6efd;
      color: white;
      padding: 8px 0;
      position: fixed;
      width: 100%;
      top: 0;
      z-index: 9999;
      box-shadow: 0 2px 10px rgba(0,0,0,0.15); 
   }
   .hero {
      background: linear-gradient(rgba(0, 33, 80, 0.65), rgba(0, 33, 80, 0.75)), url('https://solutionservicetreadmill.com/asset/img/pexels-photo-1954524.webp');
      background-size: cover;
      background-position: center;
      padding: 100px 20px;
      color: white;
      text-align: center;
   }
   .hero h1 {
      font-size: 49px;
      margin: 70px 0;
   }
   .section {
      padding: 70px 0;
   }
   .card-custom {
      border: none;
      border-radius: 16px;
      box-shadow: 0 6px 18px rgba(0,0,0,0.1);
      transition: 0.3s;
   }
   .card-custom:hover {
      transform: translateY(-6px);
      box-shadow: 0 10px 25px rgba(0,0,0,0.15);
   }
   .service-img {
      width: 100%;
      max-width: 100%;
      height: auto;
      object-fit: cover;
      border-radius: 14px;
      margin-bottom: 18px;
      box-shadow: 0 4px 14px rgba(0,0,0,0.1); 
   }
   .service-img-keunggulan {
      height: 40%;
      border-radius: 14px;
      margin-bottom: 18px;
      box-shadow: 0 4px 14px rgba(0,0,0,0.1);
   }
   .title-section {
      font-size: 32px;
      font-weight: 700;
      color: #0d6ad4;
      margin-bottom: 30px;
      text-align: center;
   }
   .title-section-sub {
      font-size: 22px;
      font-weight: 700;
      color: #07c633;
   }
   .title-section-sub-b {
      font-size: 16px;
      font-weight: 700;
      color: #c60717;
   }
   .title-section-under {
      font-size: 16px;
      font-weight: 700;
      color: #002550;
      margin-top: -25px;
      text-align: center;
   }
   ul.custom-list {
      list-style: none;
      padding: 0;
      font-size: 16px;
   }
   ul.custom-list li {
      padding-left: 28px;
      position: relative;
      margin-bottom: 5px;
   }
   ul.custom-list li::before {
      content: "✔";
      color: #0d6efd;
      position: absolute;
      left: 0;
      top: 0;
      font-weight: bold;
   }
   footer {
      background: #0d6efd;
      color: white;
      padding: 30px;
      text-align: center;
      margin-top: 50px; 
   }
   .container.section { padding-top: 10px; padding-bottom: 10px; }
   hr.shadow-hr {
      border: 0;
      height: 1px;
      background: #d0d0d0;
      position: relative;
      margin: 40px 0;
   }
   hr.shadow-hr::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: -6px;
      width: 100%;
      height: 8px;
      background: linear-gradient(to bottom, rgba(0,0,0,0.15), transparent);
      border-radius: 50%;
   }
   .row {
      margin-top: 20px;
      margin-bottom: 20px;
   }
   .brand-strip {
      padding: 25px 15px;
      margin: 40px 0;
      text-align: center;
      font-size: 18px;
      line-height: 1.6;
      box-shadow: 0 4px 14px rgba(0,0,0,0.1);
   }
   .service-area-section {
      background: linear-gradient(135deg, #0d6efd, #003c8f);
      color: white;
      padding: 25px 0 !important;
      margin: 40px auto;
      border-radius: 14px;
      box-shadow: 0 6px 18px rgba(0,0,0,0.15);
      max-width: 780px;
   }
   .service-area-section h2 {
      color: white;
      font-size: 32px;
      letter-spacing: 0.5px;
   }
   .service-area-section p {
      font-size: 18px;
      color: white;
      max-width: 720px;
      margin: 0 auto;
      line-height: 1.7;
   }
   .cta-section {
      background: linear-gradient(135deg, #0d6efd, #003c8f);
      color: white;
      padding: 25px 0 !important;
      margin: 40px auto;
      border-radius: 14px;
      box-shadow: 0 6px 18px rgba(0,0,0,0.15);
      max-width: 780px;
   }
   .cta-section h2 {
      font-size: 34px;
      font-weight: 700;
      margin-bottom: 15px;
   }
   .cta-section p {
      font-size: 20px;
      opacity: 0.95;
      margin-bottom: 25px;
   }
   .cta-section .btn {
      padding: 12px 26px;
      font-size: 18px;
      border-radius: 10px;
      box-shadow: 0 4px 12px rgba(0,0,0,0.15);
   }
   .cta-section .btn-success {
      background: #25d366;
      border: none;
   }
   .cta-section .btn-primary {
      background: #065bbf;
      border: none;
   }
   .custom-nav {
      background: rgba(0, 33, 80, 0.90);
      backdrop-filter: blur(12px);
      padding: 10px 0;
      margin-top: 40px; /* agar tidak bertumpuk dengan topbar */
      z-index: 9998;
   }
   .custom-nav .nav-link {
      color: #e9f1ff !important;
      font-weight: 500;
      margin-left: 20px;
      transition: 0.3s ease;
      font-size: 16px;
   }
   .custom-nav .nav-link:hover {
      color: #ffffff !important;
      text-decoration: underline;
   }
   html {
      scroll-behavior: smooth;
   }
   /* =============================
   RESPONSIVE MOBILE (≤ 576px)
   ============================= */
   @media (max-width: 576px) {
      body {
         padding-top: 60px; /* beri ruang bawah topbar */
      }
      .topbar {
         font-size: 13px;
         padding: 6px 5px;
      }
      .hero {
         padding: 120px 20px;
      }
      .hero h1 {
         font-size: 24px;
         line-height: 30px;
      }
      .hero p {
         font-size: 15px;
         margin-bottom: 20px;
      }
      .hero .btn {
         font-size: 15px;
         padding: 10px 20px;
      }
      .container.section {
         padding-left: 18px !important;
         padding-right: 18px !important;
         padding-top: 10px;
         padding-bottom: 40px;
      }
      .title-section {
         font-size: 24px;
         margin-bottom: 20px;
         padding-left: 10px;
         padding-right: 10px;
      }
      .title-section-under {
         font-size: 14px;
         margin-top: -10px;
      }
      .row {
         margin-left: 0 !important;
         margin-right: 0 !important;
         margin-top: 10px;
         margin-bottom: 10px;
      }
      .service-img {
         width: 100%;
         border-radius: 12px;
         margin-bottom: 15px;
      }
      .service-img-keunggulan {
         width: 100%;
         margin-bottom: 15px;
      }
      ul.custom-list li {
         font-size: 15px;
         padding-left: 24px;
         margin-bottom: 8px;
      }
      .brand-strip {
         font-size: 15px;
         padding: 20px 10px;
         margin: 25px 0;
      }
      .service-area-section {
         padding: 10px 20px !important;
         margin: 10px 15px;
      }
      .service-area-section h2 {
         font-size: 24px;
      }
      .service-area-section p {
         font-size: 15px;
         line-height: 1.5;
      }
      .cta-section {
         padding: 25px 20px !important;
         margin: 30px 15px;
         max-width: 100%;
      }
      .cta-section h2 {
         font-size: 24px;
         margin-bottom: 10px;
      }
      .cta-section p {
         font-size: 16px;
         margin-bottom: 15px;
      }
      .cta-section .btn {
         font-size: 15px !important;
         padding: 10px 18px;
         display: block;
         width: 100%;
         margin-bottom: 10px;
      }
      .cta-section .btn:last-child {
         margin-bottom: 0;
      }
      .card-custom {
         padding: 15px !important;
      }
      .card-custom h4 { font-size: 17px;}
      .card-custom p { font-size: 15px;}
      footer { padding: 20px 10px; font-size: 13px; line-height: 1.5;}
      nav.navbar { padding-left: 10px !important;padding-right: 10px !important;}
      nav .navbar-brand {font-size: 14px;}
      nav .nav-link {font-size: 15px; padding: 6px 0;}
}