:root {
      --bg: #0b1220;    
      --text: #0f172a;     
      --muted: #475569;     
      --brand: #1e40af;      
      --brand-2: #16a34a;      
      --white: #fff;
      --card: #ffffff;
      --shadow: 0 8px 28px rgba(2, 6, 23, 0.1);
      --radius: 14px;
    }

    * {
      box-sizing: border-box
    }

    html,
    body {
      height: 100%
    }

    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, "Noto Sans", "Microsoft JhengHei", sans-serif;
      color: var(--text);
      background: #f6f8fb;
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

    
    .bottom-cta {
      position: fixed;
      bottom: 12px;
      left: 50%;
      transform: translateX(-50%);
      z-index: 1000;
      background: var(--brand-2);
      color: var(--white);
      border: none;
      border-radius: 999px;
      padding: 12px 20px;
      font-size: clamp(14px, 2.6vw, 16px);
      font-weight: 600;
      display: flex;
      align-items: center;
      gap: 10px;
      box-shadow: var(--shadow);
      cursor: pointer;
      text-decoration: none;
      transition: filter .2s ease;
      animation: pulse 2.2s infinite ease-in-out;
       white-space: nowrap;
    }

    .bottom-cta:hover {
      filter: brightness(1.05)
    }

    .wa-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: #22c55e;
      box-shadow: 0 0 8px rgba(34, 197, 94, .9);
    }

    @keyframes pulse {
      0% {
        transform: translateX(-50%) scale(1)
      }

      50% {
        transform: translateX(-50%) scale(1.06)
      }

      100% {
        transform: translateX(-50%) scale(1)
      }
    }

    /* Hero section */
    .hero {
      position: relative;
      height: 100vh;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      text-align: center;
      color: #fff;
      overflow: hidden;
    }

    .hero::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: url("bgpic.jpg") center/cover no-repeat;
      filter: blur(8px);
      transform: scale(1.1);    
      z-index: -2;
    }

    .hero::after {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(0, 0, 0, 0.55);     
      z-index: -1;
    }

    .hero h1 {
      font-size: 2.5rem;
      margin: 0 20px;
    }

    .hero p {
      font-size: 1.2rem;
      margin: 15px 20px 30px;
      max-width: 700px;
    }

    .section {
      width: min(1120px, 92%);
      margin: 56px auto;
    }

    .section h2 {
      margin: 0 0 8px;
      font-size: clamp(22px, 4.8vw, 30px);
      color: var(--brand);
      letter-spacing: .2px;
    }

    .section p.lead {
      margin: 0 0 22px;
      color: var(--muted);
      font-size: clamp(14px, 3vw, 16px);
    }

    .grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 18px;
    }

    @media (max-width: 920px) {
      .grid {
        grid-template-columns: repeat(2, 1fr)
      }
    }

    @media (max-width: 620px) {
      .grid {
        grid-template-columns: 1fr
      }
    }

    .card {
      background: var(--card);
      border-radius: var(--radius);
      padding: 18px;
      box-shadow: var(--shadow);
    }

    .card h3 {
      margin: 0 0 6px;
      font-size: clamp(16px, 3.6vw, 18px);
      color: #0f172a;
    }

    .card p {
      margin: 0;
      color: #475569;
      font-size: clamp(14px, 3vw, 16px);
    }

    .badge {
      display: inline-block;
      background: #e2e8f0;
      color: #0f172a;
      font-weight: 600;
      font-size: 12px;
      padding: 4px 10px;
      border-radius: 999px;
      margin-bottom: 8px;
    }

    .steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 14px;
    }

    @media (max-width: 920px) {
      .steps {
        grid-template-columns: repeat(2, 1fr)
      }
    }

    @media (max-width: 620px) {
      .steps {
        grid-template-columns: 1fr
      }
    }

    .step {
      background: #ffffff;
      border-radius: var(--radius);
      padding: 16px;
      box-shadow: var(--shadow);
    }

    .step-num {
      width: 36px;
      height: 36px;
      border-radius: 10px;
      background: #dbeafe;
      color: #1e40af;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .faq details {
      background: #fff;
      border-radius: 12px;
      padding: 14px 16px;
      box-shadow: var(--shadow);
    }

    .faq details+details {
      margin-top: 10px
    }

    .faq summary {
      cursor: pointer;
      font-weight: 700;
      color: #0f172a;
      list-style: none;
    }

    .faq summary::-webkit-details-marker {
      display: none
    }

    .faq p {
      margin: 8px 0 0;
      color: #475569
    }
  
    footer {
      background: #0b1220;
      color: #cbd5e1;
      padding: 24px 0 100px;
      margin-top: 56px;
    }

    .footer-inner {
      width: min(1120px, 92%);
      margin: 0 auto;
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: space-between;
      align-items: center;
    }

    .footer-links {
      display: flex;
      gap: 14px;
      flex-wrap: wrap;
    }

    .footer-link {
      color: #93c5fd;
      text-decoration: none;
      font-weight: 600;
      cursor: pointer;
    }

    .footer-note {
      color: #94a3b8;
      font-size: 13px
    }
    
    .modal-backdrop {
      position: fixed;
      inset: 0;
      background: rgba(2, 6, 23, .6);
      display: none;
      align-items: center;
      justify-content: center;
      z-index: 1200;
      padding: 16px;
    }

    .modal-backdrop.active {
      display: flex
    }

    .modal {
      width: min(760px, 100%);
      background: #ffffff;
      color: #0f172a;
      border-radius: 16px;
      box-shadow: var(--shadow);
      max-height: 85vh;
      overflow: auto;
    }

    .modal header {
      padding: 16px 18px;
      background: #f1f5f9;
      color: #0f172a;
      position: sticky;
      top: 0;
      z-index: 1;
      border-top-left-radius: 16px;
      border-top-right-radius: 16px;
    }

    .modal header h3 {
      margin: 0;
      font-size: 18px
    }

    .modal .content {
      padding: 18px;
      margin: 0 2px;
    }

    .modal .actions {
      padding: 16px 18px;
      display: flex;
      justify-content: flex-end;
      gap: 10px;
      position: sticky;
      bottom: 0;
      background: #fff;
      border-bottom-left-radius: 16px;
      border-bottom-right-radius: 16px;
    }

    .btn {
      border: none;
      border-radius: 10px;
      padding: 10px 14px;
      font-weight: 700;
      cursor: pointer;
    }

    .btn.secondary {
      background: #e2e8f0;
      color: #0f172a
    }

    .btn.primary {
      background: #1e40af;
      color: #fff
    }

    .link {
      color: #1e40af;
      text-decoration: none;
      font-weight: 600;
    }