/* ============================================================
   design-trip Page
   ============================================================ */

#backToTop {
  position: fixed; bottom: 28px; left: 28px;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--primary); color: #fff; font-size: 20px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-md); cursor: pointer;
  opacity: 0; pointer-events: none; transition: opacity .3s; z-index: 90;
}
#backToTop.show { opacity: 1; pointer-events: auto; }

.hub-header {
      padding: 56px 0 48px;
      background: linear-gradient(155deg, #eff6ff 0%, #f8fafc 55%, #f0fdf4 100%);
      border-bottom: 1.5px solid var(--border);
      text-align: center;
      position: relative; overflow: hidden;
    }
    .hub-header::before {
      content: '';
      position: absolute; inset: 0;
      background:
        radial-gradient(circle at 15% 50%, rgba(29,78,216,0.06) 0%, transparent 55%),
        radial-gradient(circle at 85% 50%, rgba(22,163,74,0.06) 0%, transparent 55%);
      pointer-events: none;
    }
    .hub-badge {
      display: inline-flex; align-items: center; gap: 6px;
      padding: 5px 18px; border-radius: 50px; margin-bottom: 18px;
      font-size: 13px; font-weight: 700;
      background: rgba(29,78,216,0.08); border: 1px solid rgba(29,78,216,0.2); color: var(--primary);
    }
    .hub-header h1 { font-size: 40px; font-weight: 800; color: var(--text); margin-bottom: 12px; line-height: 1.2; }
    .hub-header h1 span { color: var(--primary); }
    .hub-header p { font-size: 17px; color: var(--text-muted); max-width: 520px; margin: 0 auto; line-height: 1.75; }

    /* ── Choice section ── */
    .hub-section { padding: 48px 0; background: #fff; }
    .hub-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 28px;
      max-width: 900px;
      margin: 0 auto;
    }

    .hub-card {
      display: flex; flex-direction: column; align-items: center;
      text-align: center;
      padding: 48px 36px 40px;
      border-radius: var(--radius-xl);
      border: 2px solid var(--border);
      background: #fff;
      text-decoration: none;
      transition: border-color .22s, box-shadow .22s, transform .22s;
      position: relative; overflow: hidden;
    }
    .hub-card::before {
      content: '';
      position: absolute; inset: 0;
      opacity: 0;
      transition: opacity .22s;
    }
    .hub-card:hover {
      box-shadow: 0 12px 40px rgba(0,0,0,.12);
      transform: translateY(-4px);
    }

    /* Umrah card */
    .hub-card-umrah { border-color: rgba(22,163,74,0.25); }
    .hub-card-umrah::before { background: linear-gradient(160deg, rgba(22,163,74,0.04) 0%, transparent 60%); }
    .hub-card-umrah:hover { border-color: var(--green); }
    .hub-card-umrah:hover::before { opacity: 1; }

    /* Trip card */
    .hub-card-trip { border-color: rgba(29,78,216,0.25); }
    .hub-card-trip::before { background: linear-gradient(160deg, rgba(29,78,216,0.04) 0%, transparent 60%); }
    .hub-card-trip:hover { border-color: var(--primary); }
    .hub-card-trip:hover::before { opacity: 1; }

    .hub-card-icon {
      width: 96px; height: 96px;
      border-radius: 24px;
      display: flex; align-items: center; justify-content: center;
      font-size: 44px;
      margin-bottom: 24px;
      position: relative; z-index: 1;
    }
    .hub-card-umrah .hub-card-icon { background: rgba(22,163,74,0.08); }
    .hub-card-trip  .hub-card-icon { background: rgba(29,78,216,0.08); }

    .hub-card-title {
      font-size: 24px; font-weight: 800; color: var(--text);
      margin-bottom: 10px;
      position: relative; z-index: 1;
    }
    .hub-card-desc {
      font-size: 14px; color: var(--text-muted);
      line-height: 1.75; margin-bottom: 28px;
      position: relative; z-index: 1;
    }
    .hub-card-features {
      display: flex; flex-wrap: wrap; justify-content: center; gap: 8px;
      margin-bottom: 32px;
      position: relative; z-index: 1;
    }
    .hub-feat {
      padding: 4px 12px; border-radius: 20px;
      font-size: 12px; font-weight: 600;
    }
    .hub-card-umrah .hub-feat { background: var(--green-light); color: var(--green); }
    .hub-card-trip  .hub-feat { background: var(--primary-light); color: var(--primary); }

    .hub-card-btn {
      display: inline-flex; align-items: center; gap: 8px;
      padding: 13px 32px; border-radius: var(--radius-sm);
      font-size: 15px; font-weight: 700;
      transition: background .2s, transform .15s;
      position: relative; z-index: 1;
    }
    .hub-card-btn svg { width: 18px; height: 18px; flex-shrink: 0; }
    .hub-card-umrah .hub-card-btn { background: var(--green); color: #fff; }
    .hub-card-umrah .hub-card-btn:hover { background: var(--green-hover); }
    .hub-card-trip  .hub-card-btn { background: var(--primary); color: #fff; }
    .hub-card-trip  .hub-card-btn:hover { background: var(--primary-hover); }

    @media (max-width: 700px) {
      .hub-grid { grid-template-columns: 1fr; gap: 20px; }
      .hub-header h1 { font-size: 28px; }
      .hub-card { padding: 36px 24px 32px; }
      .hub-card-icon { width: 80px; height: 80px; font-size: 36px; }
      .hub-card-title { font-size: 20px; }
    }