body {
       background: linear-gradient(135deg, #f5f7fa 0%, #e4e8ec 100%);
       min-height: 100vh;
   }

   .nav-card-container {
       min-height: 100vh;
       display: flex;
       align-items: center;
       justify-content: center;
       padding: 2rem;
   }

   .nav-card-wrapper {
       max-width: 1280px;
       width: 100%;
   }

   .page-title {
       text-align: center;
       margin-bottom: 3rem;
   }

   .page-title h1 {
       font-size: 2rem;
       font-weight: 700;
       color: #1a1a2e;
       margin-bottom: 0.5rem;
   }

   .page-title p {
       color: #6c757d;
       font-size: 1rem;
       margin: 0;
   }

   .nav-card {
       background: #ffffff;
       border: none;
       border-radius: 16px;
       padding: 2rem;
       text-decoration: none;
       display: block;
       transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
       box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
       height: 100%;
       position: relative;
       overflow: hidden;
       text-align: center;
   }

   .nav-card::before {
       content: '';
       position: absolute;
       top: 0;
       left: 0;
       width: 100%;
       height: 4px;
       background: linear-gradient(90deg, var(--card-gradient-start), var(--card-gradient-end));
       opacity: 0;
       transition: opacity 0.3s ease;
   }

   .nav-card:hover {
       transform: translateY(-8px);
       box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
   }

   .nav-card:hover::before {
       opacity: 1;
   }

   .nav-card .icon-wrapper {
       width: 64px;
       height: 64px;
       border-radius: 14px;
       display: flex;
       align-items: center;
       justify-content: center;
       margin: 0 auto 1.5rem auto;
       background: linear-gradient(135deg, var(--card-gradient-start, #2563EB), var(--card-gradient-end, #1D4ED8));
   }

   .nav-card .icon-wrapper i {
       font-size: 28px;
       color: #ffffff;
   }

   .nav-card .card-title {
       font-size: 1.125rem;
       font-weight: 600;
       color: #1a1a2e;
       margin-bottom: 0.5rem;
       line-height: 1.4;
   }

   .nav-card .card-subtitle {
       font-size: 0.875rem;
       color: #6c757d;
       margin-bottom: 1.5rem;
   }

   .nav-card .card-arrow {
       display: flex;
       align-items: center;
       justify-content: center;
       color: #adb5bd;
       font-size: 0.875rem;
       font-weight: 500;
       transition: all 0.3s ease;
   }

   .nav-card .card-arrow i {
       margin-left: 0.5rem;
       transition: transform 0.3s ease;
   }

   .nav-card:hover .card-arrow {
       color: var(--card-gradient-start);
   }

   .nav-card:hover .card-arrow i {
       transform: translateX(4px);
   }

   /* Card Color Variants */
   .nav-card.service-screen {
       --card-gradient-start: #4F46E5;
       --card-gradient-end: #7C3AED;
   }

   .nav-card.service-print {
       --card-gradient-start: #0EA5E9;
       --card-gradient-end: #06B6D4;
   }

   .nav-card.court-screen {
       --card-gradient-start: #10B981;
       --card-gradient-end: #34D399;
   }

   .nav-card.court-print {
       --card-gradient-start: #F59E0B;
       --card-gradient-end: #FBBF24;
   }

    .nav-card.signin-card,
    .nav-card.signin {
        --card-gradient-start: #2563EB;
        --card-gradient-end: #1D4ED8;
    }