body { background: #fff; }
    .container {
      max-width: 900px;
      margin: 0 auto;
      padding: 0 1rem;
    }
    .tracking-navbar {
      background: rgba(255,255,255,0.95);
      box-shadow: 0 2px 8px rgba(31,38,135,0.07);
      border-radius: 1rem;
      margin: 2rem 0 2.5rem 0;
      padding: 0.7rem 1.5rem;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .tracking-navbar .logo {
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }
    .tracking-navbar .logo img {
      height: 32px;
      width: auto;
    }
    .tracking-navbar .logo-text {
      font-size: 1.3rem;
      font-weight: 700;
      color: #2563eb;
      letter-spacing: -0.5px;
    }
    .tracking-navbar .nav-links a {
      color: #374151;
      font-weight: 500;
      text-decoration: none;
      font-size: 1.05rem;
      margin-left: 1.2rem;
      border-radius: 0.3rem;
      padding: 0.2rem 0.7rem;
      transition: color 0.2s, background 0.2s;
    }
    .tracking-navbar .nav-links a.active, .tracking-navbar .nav-links a:focus, .tracking-navbar .nav-links a:hover {
      color: #4f46e5;
      background: #f3f4f6;
    }
    .tracking-navbar .login-btn {
      background: #111;
      color: #fff;
      border-radius: 0.5rem;
      padding: 0.5rem 1.1rem;
      font-size: 1rem;
      font-weight: 500;
      border: none;
      box-shadow: 0 2px 8px rgba(0,0,0,0.07);
      transition: background 0.2s, color 0.2s;
      display: flex;
      align-items: center;
      gap: 0.5rem;
      cursor: pointer;
      margin-left: 1rem;
    }
    .tracking-navbar .login-btn:hover {
      background: #2563eb;
      color: #fff;
    }
    .tracking-card {
      background: #fff;
      border-radius: 1rem;
      box-shadow: 0 2px 8px rgba(31,38,135,0.07);
      padding: 1.2rem 1.2rem 1.2rem 1.2rem;
      margin-bottom: 2rem;
      border-left: 5px solid #2563eb;
      transition: box-shadow 0.2s;
    }
    .tracking-card:hover {
      box-shadow: 0 8px 32px rgba(37,99,235,0.13);
    }
    .tracking-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      margin-bottom: 0.7rem;
    }
    .tracking-header-main {
      display: flex;
      align-items: center;
      gap: 0.7rem;
    }
    .tracking-status {
      font-weight: bold;
      font-size: 1.1rem;
      color: #2563eb;
    }
    .tracking-actions {
      display: flex;
      gap: 0.5rem;
      flex-wrap: wrap;
      margin-top: 0;
    }
    .tracking-actions button {
      border-radius: 0.5rem;
      padding: 0.3rem 0.8rem;
      font-size: 0.98rem;
      border: none;
      background: #f3f4f6;
      color: #2563eb;
      transition: background 0.2s, color 0.2s;
      cursor: pointer;
      font-weight: 500;
      box-shadow: 0 1px 4px rgba(37,99,235,0.04);
    }
    .tracking-actions button:hover {
      background: #2563eb;
      color: #fff;
    }
    .tracking-meta {
      font-size: 0.97rem;
      color: #6b7280;
      margin-bottom: 0.7rem;
      margin-left: 0.2rem;
    }
    .tracking-timeline {
      border-left: 3px solid #e5e7eb;
      margin-left: 1.2rem;
      padding-left: 1.5rem;
      margin-top: 0.7rem;
    }
    .timeline-event {
      position: relative;
      margin-bottom: 1.2rem;
      padding-left: 1.5rem;
    }
    .timeline-event:last-child {
      margin-bottom: 0;
    }
    .timeline-dot {
      position: absolute;
      left: -1.7rem;
      top: 0.2rem;
      width: 1.1rem;
      height: 1.1rem;
      background: #2563eb;
      border-radius: 50%;
      border: 2px solid #fff;
      box-shadow: 0 0 0 2px #2563eb33;
    }
    .timeline-date {
      font-size: 0.93rem;
      color: #6b7280;
      margin-bottom: 0.2rem;
    }
    .timeline-desc {
      font-size: 1.01rem;
      color: #111827;
    }
    .timeline-city {
      font-size: 0.93rem;
      color: #374151;
      margin-top: 0.1rem;
    }
    .tracking-rating {
      color: #f59e42;
      font-size: 1.05rem;
      margin-left: 0.5rem;
    }
    .premium-badge {
      background: #f59e42;
      color: #fff;
      border-radius: 0.5rem;
      padding: 0.2rem 0.7rem;
      font-size: 0.93rem;
      margin-right: 0.5rem;
      display: inline-block;
    }
    /* --- Custom layout for tracking-result.html --- */
    .tracking-main-layout {
      display: flex;
      flex-direction: row;
      gap: 2rem;
      margin-top: 2rem;
    }
    .tracking-main-content {
      flex: 3;
      min-width: 0;
    }
    .tracking-sidebar {
      flex: 1;
      min-width: 260px;
      max-width: 340px;
      background: #fff;
      border-radius: 1rem;
      box-shadow: 0 2px 8px rgba(31,38,135,0.07);
      padding: 1.5rem 1.2rem 1.2rem 1.2rem;
      display: flex;
      flex-direction: column;
      align-items: stretch;
      gap: 2rem;
      height: fit-content;
    }
    .tracking-form {
      display: flex;
      flex-direction: column;
      gap: 1rem;
    }
    .tracking-form textarea {
      min-height: 80px;
      resize: vertical;
      border-radius: 0.5rem;
      border: 1px solid #e5e7eb;
      padding: 0.7rem;
      font-size: 1rem;
    }
    .tracking-form button {
      background: #2563eb;
      color: #fff;
      border: none;
      border-radius: 0.5rem;
      padding: 0.7rem 1.2rem;
      font-size: 1.1rem;
      font-weight: 600;
      cursor: pointer;
      transition: background 0.2s;
    }
    .tracking-form button:hover {
      background: #111;
    }
    .tracking-ads {
      min-height: 120px;
      background: #f3f4f6;
      border-radius: 0.7rem;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #888;
      font-size: 1rem;
      text-align: center;
    }
    @media (max-width: 900px) {
      .container { padding: 0 0.2rem; }
      .tracking-navbar { flex-direction: column; align-items: flex-start; }
      .tracking-navbar .nav-links { margin-top: 1rem; }
      .tracking-card { padding: 1rem !important; }
      .tracking-header { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
      .tracking-actions { margin-top: 0.5rem; }
      .tracking-main-layout {
        flex-direction: column;
        gap: 1.2rem;
      }
      .tracking-sidebar {
        max-width: 100%;
        width: 100%;
        margin-top: 1.5rem;
      }
    }
    @media (max-width: 600px) {
      .container { padding: 0 0.1rem; }
    }