* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      font-family: 'Poppins', sans-serif;
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      min-height: 100vh;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 20px;
      position: relative;
      overflow: hidden;
    }

    /* Animated background circles */
    body::before,
    body::after {
      content: '';
      position: absolute;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.1);
      animation: float 20s infinite ease-in-out;
    }

    body::before {
      width: 300px;
      height: 300px;
      top: -100px;
      left: -100px;
      animation-delay: 0s;
    }

    body::after {
      width: 400px;
      height: 400px;
      bottom: -150px;
      right: -150px;
      animation-delay: 5s;
    }

    @keyframes float {
      0%, 100% {
        transform: translate(0, 0) scale(1);
      }
      50% {
        transform: translate(50px, 50px) scale(1.1);
      }
    }

    .login-container {
      width: 100%;
      max-width: 450px;
      position: relative;
      z-index: 10;
      animation: slideUp 0.6s ease-out;
    }

    @keyframes slideUp {
      from {
        opacity: 0;
        transform: translateY(30px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    .login-card {
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-radius: 20px;
      padding: 40px;
      box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
      border: 1px solid rgba(255, 255, 255, 0.2);
    }

    .logo-container {
      text-align: center;
      margin-bottom: 30px;
      animation: fadeIn 0.8s ease-out 0.2s both;
    }

    @keyframes fadeIn {
      from {
        opacity: 0;
        transform: scale(0.8);
      }
      to {
        opacity: 1;
        transform: scale(1);
      }
    }

    .logo-container img {
      width: 80px;
      height: 80px;
      object-fit: contain;
      margin-bottom: 15px;
      filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.1));
      transition: transform 0.3s ease;
    }

    .logo-container img:hover {
      transform: scale(1.05) rotate(5deg);
    }

    .site-title {
      font-size: 24px;
      font-weight: 700;
      color: #667eea;
      margin-bottom: 5px;
    }

    .page-subtitle {
      font-size: 14px;
      color: #888;
      font-weight: 500;
      letter-spacing: 2px;
      text-transform: uppercase;
    }

    .welcome-text {
      text-align: center;
      margin-bottom: 30px;
      color: #555;
      font-size: 15px;
      animation: fadeIn 0.8s ease-out 0.4s both;
    }

    .form-group {
      margin-bottom: 25px;
      position: relative;
      animation: fadeIn 0.8s ease-out 0.6s both;
    }

    .input-wrapper {
      position: relative;
    }

    .input-icon {
      position: absolute;
      left: 18px;
      top: 50%;
      transform: translateY(-50%);
      color: #667eea;
      font-size: 18px;
      transition: all 0.3s ease;
      z-index: 2;
    }

    .form-control {
      width: 100%;
      padding: 15px 20px 15px 55px;
      border: 2px solid #e0e0e0;
      border-radius: 12px;
      font-size: 15px;
      transition: all 0.3s ease;
      background: #fff;
      font-family: 'Poppins', sans-serif;
    }

    .form-control:focus {
      outline: none;
      border-color: #667eea;
      box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
      transform: translateY(-2px);
    }

    .form-control:focus + .input-icon {
      color: #764ba2;
      transform: translateY(-50%) scale(1.1);
    }

    .btn-login {
      width: 100%;
      padding: 15px;
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      border: none;
      border-radius: 12px;
      color: white;
      font-size: 16px;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.3s ease;
      box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
      margin-top: 10px;
      animation: fadeIn 0.8s ease-out 0.8s both;
      text-transform: uppercase;
      letter-spacing: 1px;
    }

    .btn-login:hover {
      transform: translateY(-3px);
      box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
    }

    .btn-login:active {
      transform: translateY(-1px);
    }

    .btn-login i {
      margin-right: 8px;
    }

    /* Alert styles */
    .alert-notification {
      margin-bottom: 20px;
      animation: slideDown 0.5s ease-out;
    }

    @keyframes slideDown {
      from {
        opacity: 0;
        transform: translateY(-20px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    .alert {
      padding: 15px 20px;
      border-radius: 12px;
      font-size: 14px;
      border: none;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .alert::before {
      font-family: 'Font Awesome 6 Free';
      font-weight: 900;
      font-size: 18px;
    }

    .alert-danger {
      background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
      color: white;
    }

    .alert-danger::before {
      content: '\f06a'; /* exclamation-circle */
    }

    .alert-success {
      background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
      color: white;
    }

    .alert-success::before {
      content: '\f058'; /* check-circle */
    }

    .alert-info {
      background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
      color: white;
    }

    .alert-info::before {
      content: '\f05a'; /* info-circle */
    }

    .alert-warning {
      background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
      color: white;
    }

    .alert-warning::before {
      content: '\f071'; /* exclamation-triangle */
    }

    /* Responsive */
    @media (max-width: 768px) {
      .login-card {
        padding: 30px 25px;
      }

      .site-title {
        font-size: 20px;
      }

      .logo-container img {
        width: 70px;
        height: 70px;
      }
    }

    /* Loading animation on button */
    .btn-login.loading {
      position: relative;
      color: transparent;
    }

    .btn-login.loading::after {
      content: '';
      position: absolute;
      width: 20px;
      height: 20px;
      top: 50%;
      left: 50%;
      margin-left: -10px;
      margin-top: -10px;
      border: 3px solid rgba(255, 255, 255, 0.3);
      border-top-color: white;
      border-radius: 50%;
      animation: spin 0.8s linear infinite;
    }

    @keyframes spin {
      to {
        transform: rotate(360deg);
      }
    }

    /* Password toggle */
    .password-toggle {
      position: absolute;
      right: 18px;
      top: 50%;
      transform: translateY(-50%);
      cursor: pointer;
      color: #999;
      transition: color 0.3s ease;
      z-index: 2;
    }

    .password-toggle:hover {
      color: #667eea;
    }

    /* Decorative elements */
    .decorative-circle {
      position: absolute;
      border-radius: 50%;
      background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
      pointer-events: none;
    }

    .circle-1 {
      width: 100px;
      height: 100px;
      top: -50px;
      right: -50px;
    }

    .circle-2 {
      width: 150px;
      height: 150px;
      bottom: -75px;
      left: -75px;
    }