/* ============================================
       TOMBOL WA
       ============================================ */
    .wa-btn {
      text-decoration: none;
      color: #fff;
      display: grid;
      grid-template-columns: 56px 1fr auto;
      align-items: center;
      gap: 14px;
      padding: 13px 16px 13px 13px;
      border-radius: 14px;
      background: linear-gradient(to bottom, #ff4b4b 0%, #e60000 40%, #6b0000 100%);
      border-top: 1px solid rgba(255,255,255,0.60);
      border-bottom: 4px solid #3a0000;
      box-shadow:
        0 0 14px rgba(255,0,0,0.50),
        0 10px 24px rgba(0,0,0,.35),
        inset 0 1px 0 rgba(255,255,255,.20);
      font-weight: 800;
      text-shadow: 0 1px 2px rgba(0,0,0,0.45);
      position: relative;
      overflow: hidden;
      transition: transform .22s ease, filter .22s ease, box-shadow .22s ease, border-color .22s ease;
      isolation: isolate;
    }

    .wa-btn::before {
      content: '';
      position: absolute;
      top: 0;
      left: -150%;
      width: 100%;
      height: 100%;
      background: linear-gradient(to right, transparent, rgba(255,255,255,.55), transparent);
      transform: skewX(-25deg);
      pointer-events: none;
      animation: glassShine 3s infinite;
      z-index: 1;
    }

    @keyframes glassShine {
      0%   { left: -150%; }
      100% { left: 150%; }
    }

    .wa-btn::after {
      content: '';
      position: absolute;
      inset: 0;
      border-radius: inherit;
      background: linear-gradient(to bottom, rgba(255,255,255,0.20) 0%, transparent 45%, rgba(0,0,0,0.25) 100%);
      pointer-events: none;
      z-index: 0;
    }

    .wa-btn:hover {
      transform: translateY(-3px) scale(1.005);
      filter: brightness(1.10);
      box-shadow: 0 0 30px rgba(255,0,0,0.80), 0 18px 40px rgba(0,0,0,.40);
      border-bottom-color: #280000;
    }

    .wa-btn:active {
      transform: translateY(-1px) scale(.998);
      border-bottom-width: 2px;
    }

    .wa-btn:focus-visible {
      outline: 3px solid rgba(255,95,95,.70);
      outline-offset: 3px;
    }

    .wa-btn.dark {
      background: linear-gradient(to bottom, #8a0d0d 0%, #5c0000 40%, #1c0000 100%);
      border-bottom: 4px solid #1c0000;
      box-shadow: 0 0 14px rgba(180,0,0,0.60), 0 10px 24px rgba(0,0,0,.35), inset 0 1px 0 rgba(255,255,255,.18);
    }

    .wa-btn.dark:hover {
      box-shadow: 0 0 30px rgba(180,0,0,0.90), 0 18px 40px rgba(0,0,0,.40);
      border-bottom-color: #100000;
    }

    .wa-btn.bright {
      background: linear-gradient(to bottom, #ff8080 0%, #ff1a1a 40%, #8a0000 100%);
      border-bottom: 4px solid #8a0000;
      box-shadow: 0 0 14px rgba(255,26,26,0.60), 0 10px 24px rgba(0,0,0,.35), inset 0 1px 0 rgba(255,255,255,.22);
    }

    .wa-btn.bright:hover {
      box-shadow: 0 0 30px rgba(255,26,26,0.90), 0 18px 40px rgba(0,0,0,.40);
      border-bottom-color: #6b0000;
    }

    .wa-icon {
      width: 56px;
      height: 56px;
      display: grid;
      place-items: center;
      border-radius: 14px;
      background: rgba(255,255,255,.18);
      border-top: 1px solid rgba(255,255,255,0.55);
      border-bottom: 2px solid rgba(0,0,0,0.35);
      box-shadow: inset 0 1px 0 rgba(255,255,255,.30), 0 4px 10px rgba(0,0,0,.20);
      transition: transform .25s ease;
      position: relative;
      z-index: 2;
    }

    .wa-btn:hover .wa-icon { transform: scale(1.08) rotate(-4deg); }

    .wa-icon svg {
      width: 30px;
      height: 30px;
      filter: drop-shadow(0 2px 4px rgba(0,0,0,.30));
    }

    .wa-text {
      min-width: 0;
      position: relative;
      z-index: 2;
    }

    .wa-text strong {
      display: block;
      margin-bottom: 3px;
      font-size: 15px;
      letter-spacing: -.15px;
      font-weight: 800;
      display: flex;
      align-items: center;
      gap: 7px;
      flex-wrap: wrap;
    }

    .wa-text strong .badge {
      display: inline-block;
      padding: 2px 7px;
      border-radius: 6px;
      background: rgba(255,255,255,.20);
      border: 1px solid rgba(255,255,255,.25);
      font-size: 9px;
      font-weight: 800;
      letter-spacing: .5px;
      text-transform: uppercase;
    }

    .wa-text span {
      display: block;
      color: rgba(255,255,255,.88);
      font-size: 11.5px;
      font-weight: 600;
      line-height: 1.4;
    }

    .arrow-box {
      width: 38px;
      height: 38px;
      border-radius: 11px;
      display: grid;
      place-items: center;
      background: rgba(255,255,255,.18);
      border-top: 1px solid rgba(255,255,255,0.55);
      border-bottom: 2px solid rgba(0,0,0,0.35);
      box-shadow: inset 0 1px 0 rgba(255,255,255,.28);
      font-size: 20px;
      font-weight: 900;
      transition: transform .25s ease, background .25s ease;
      position: relative;
      z-index: 2;
    }

    .wa-btn:hover .arrow-box {
      transform: translateX(4px);
      background: rgba(255,255,255,.32);
    }