/* --- Login Tabs --- */
    .login-tabs {
      display: flex;
      justify-content: center;
      margin-bottom: 30px;
      gap: 10px;
    }
    .innter-tab {
        border-bottom: 1px solid #5f7279;
    }
    .tab-btn {
      background: rgba(255,255,255,0.08);
      color: #fff;
      border: none;
      padding: 12px 32px;
      font-size: 18px;
      border-radius: 6px 6px 0 0;
      cursor: pointer;
      font-weight: bold;
      transition: background 0.2s, color 0.2s;
      outline: none;
    }
    .tab-btn.active, .tab-btn:focus {
      background: #0088cc;
      color: #fff;
      box-shadow: 0 4px 16px rgba(0,136,204,0.15);
      z-index: 2;
    }
    .tab-btn:not(.active):hover {
      background: rgba(0,136,204,0.15);
      color: #fff;
    }
    /* --- Registration & Forms --- */
    .form-group {
      margin-bottom: 20px;
    }
    .form-group label {
      display: block;
      margin-bottom: 8px;
      color: #fff;
      font-weight: 500;
    }
    .form-group input {
      width: 100%;
      max-width: 350px;
      padding: 12px;
      border: 2px solid rgba(255, 255, 255, 0.2);
      background: rgba(255, 255, 255, 0.1);
      color: #fff;
      border-radius: 6px;
      font-size: 16px;
      transition: all 0.3s;
    }
    .form-group input::placeholder {
      color: rgba(255, 255, 255, 0.5);
    }
    .form-group input:focus {
      outline: none;
      border-color: #0088cc;
      background: rgba(255, 255, 255, 0.15);
    }

    .alert {
      padding: 15px;
      border-radius: 6px;
      margin-bottom: 20px;
      font-size: 16px;
      text-align: left;
    }
    .alert-success {
      background: rgba(76, 175, 80, 0.2);
      color: #4CAF50;
      border: 1px solid #4CAF50;
    }
    .alert-error, .alert-danger {
      background: rgba(244, 67, 54, 0.2);
      color: #ff6b6b;
      border: 1px solid #f44336;
    }
    .alert-warning {
      background: rgba(255, 193, 7, 0.2);
      color: #FFC107;
      border: 1px solid #FFC107;
    }
    .alert-info {
      background: rgba(33, 150, 243, 0.2);
      color: #2196F3;
      border: 1px solid #2196F3;
    }

    .text-center {
      text-align: center;
      margin-top: 20px;
      color: rgba(255, 255, 255, 0.8);
    }

    button.btn, button.btn-primary {
      display: inline-block;
      padding: 12px 24px;
      background-color: #0088cc;
      color: #fff;
      text-decoration: none;
      font-weight: bold;
      border-radius: 6px;
      border: none;
      cursor: pointer;
      transition: background 0.3s ease;
      font-size: 16px;
    }
    button.btn:hover, button.btn-primary:hover {
      background-color: #0073aa;
    }
    body {
      font-family: 'Segoe UI', sans-serif;
      background: linear-gradient(to right, #0f2027, #203a43, #2c5364);
      color: #fff;
      margin: 0;
      padding: 0;
      text-align: center;
    }
    .container {
      padding: 60px 20px;
      max-width: 900px;
      margin: auto;
    }
    .logo {
      max-width: 120px;
    }
    h1 {
      font-size: 48px;
      margin-bottom: 20px;
    }
    p {
      font-size: 18px;
      line-height: 1.6;
      margin-bottom: 30px;
    }
    .features {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 30px;
      margin-bottom: 40px;
      flex-wrap: wrap;
    }
    .features img {
      flex-shrink: 0;
    }
    ul {
      text-align: left;
      margin: 0;
      padding: 0;
      list-style: none;
      max-width: 600px;
    }
    ul li {
      margin-bottom: 10px;
    }
    ul li::before {
      content: "✔ ";
      color: #4CAF50;
    }
    a{
        color: #0088cc;
        text-decoration: none;
    }
    a:hover {
        text-decoration: underline;
    }
    a.btn-primary {
      display: inline-block;
      padding: 12px 24px;
      background-color: #0088cc;
      color: #fff;
      text-decoration: none;
      font-weight: bold;
      border-radius: 6px;
      transition: background 0.3s ease;
    }
    a.btn-primary:hover {
      background-color: #0073aa;
    }
    footer {
      margin-top: 60px;
      font-size: 14px;
      color: #ccc;
    }