body {
      font-family: 'Segoe UI', sans-serif;
      scroll-behavior: smooth;
      background-color: #f8fafc;
    }
    /* Navbar */
    .navbar {
      background: rgba(255,255,255,0.9);
      backdrop-filter: blur(10px);
      box-shadow: 0 2px 15px rgba(0,0,0,0.1);
    }
    .navbar-brand {
      font-weight: bold;
      color: #0d6efd !important;
    }
    /* Hero */
    header {
      background-color: #cccccc;
      height: 70vh;
      display: flex;
      align-items: center;
      justify-content: center;
      color: white;
      text-align: center;
      position: relative;
      margin-top: 135px;
    }
    header::before {
      content: "";
      position: absolute;
      top: 0; left: 0; right: 0; bottom: 0;
      background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6));
    }
    header .content {
      position: relative;
      z-index: 2;
      max-width: 700px;
    }
    header h1 {
      font-size: 3.5rem;
      font-weight: 700;
      text-shadow: 2px 2px 10px rgba(0,0,0,0.5);
    }
    .btn-hero {
      padding: 12px 30px;
      font-size: 1.1rem;
      border-radius: 30px;
      transition: 0.3s;
    }
    .btn-hero:hover {
      transform: scale(1.1);
      box-shadow: 0 5px 20px rgba(13,110,253,0.5);
    }
    /* Section title */
    .section-title h2 {
      font-weight: bold;
      margin-bottom: 20px;
      display: inline-block;
      padding-bottom: 10px;
      border-bottom: 3px solid #0d6efd;
    }
    /* Card */
    .card {
      border: none;
      border-radius: 20px;
      overflow: hidden;
      transition: transform .4s ease, box-shadow .4s ease;
    }
    .card:hover {
      transform: translateY(-10px) scale(1.02);
      box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    }
    /* Timeline kegiatan */
    .timeline {
      position: relative;
      margin: 0 auto;
      padding: 20px 0;
    }
    .timeline::before {
      content: "";
      position: absolute;
      top: 0; bottom: 0;
      left: 50%;
      width: 4px;
      background: #0d6efd;
      transform: translateX(-50%);
    }
    .timeline-item {
      position: relative;
      width: 50%;
      padding: 20px 30px;
    }
    .timeline-item.left {
      left: 0;
      text-align: right;
    }
    .timeline-item.right {
      left: 50%;
    }
    .timeline-item::before {
      content: "";
      position: absolute;
      top: 20px;
      width: 20px;
      height: 20px;
      border-radius: 50%;
      background: #0d6efd;
      border: 3px solid #fff;
      z-index: 1;
    }
    .timeline-item.left::before {
      right: -10px;
    }
    .timeline-item.right::before {
      left: -10px;
    }
    /* Footer */
    footer {
      background: #0b1736;
      color: #ccc;
      padding: 40px 0;
    }
    footer a {
      color: #0dcaf0;
      text-decoration: none;
    }
    footer a:hover {
      color: white;
    }