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

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

        .login-container {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-radius: 20px;
            box-shadow: 0 25px 45px rgba(0, 0, 0, 0.1);
            padding: 40px;
            width: 100%;
            max-width: 400px;
            position: relative;
            overflow: hidden;
        }

        .error-message {
            background: #f8d7da;
            color: #721c24;
            padding: 15px 20px;
            border-radius: 10px;
            margin-bottom: 20px;
            display: none;
            align-items: center;
            gap: 10px;
        }

        .login-container::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, #ff6b6b, #4ecdc4, #45b7d1, #96ceb4, #feca57);
            background-size: 300% 300%;
            animation: gradient 3s ease infinite;
        }

        @keyframes gradient {
            0% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
            100% { background-position: 0% 50%; }
        }

        .logo {
            text-align: center;
            margin-bottom: 30px;
        }

        .logo-icon {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, #667eea, #764ba2);
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 15px;
            box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
        }

        .logo-icon svg {
            width: 40px;
            height: 40px;
            color: white;
        }

        .logo h1 {
            color: #333;
            font-size: 24px;
            font-weight: 600;
            margin-bottom: 5px;
        }

        .logo p {
            color: #666;
            font-size: 14px;
        }

        .form-group {
            position: relative;
            margin-bottom: 25px;
        }

        .form-group input {
            width: 100%;
            padding: 15px 20px 15px 50px;
            border: 2px solid #e1e8ed;
            border-radius: 12px;
            font-size: 16px;
            transition: all 0.3s ease;
            background: #f8f9fa;
        }

        .form-group input:focus {
            outline: none;
            border-color: #667eea;
            background: white;
            box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
        }

        .form-group .icon {
            position: absolute;
            left: 15px;
            top: 50%;
            transform: translateY(-50%);
            color: #999;
            transition: color 0.3s ease;
        }

        .form-group input:focus + .icon {
            color: #667eea;
        }

        .form-group label {
            position: absolute;
            left: 50px;
            top: 50%;
            transform: translateY(-50%);
            color: #999;
            font-size: 16px;
            pointer-events: none;
            transition: all 0.3s ease;
        }

        .form-group input:focus + .icon + label,
        .form-group input:not(:placeholder-shown) + .icon + label {
            top: -10px;
            left: 20px;
            font-size: 12px;
            color: #667eea;
            background: white;
            padding: 0 5px;
        }

        .forgot-password {
            text-align: right;
            margin-bottom: 25px;
        }

        .forgot-password a {
            color: #667eea;
            text-decoration: none;
            font-size: 14px;
            transition: color 0.3s ease;
        }

        .forgot-password a:hover {
            color: #764ba2;
        }

        .login-btn {
            width: 100%;
            padding: 15px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            border: none;
            border-radius: 12px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .login-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
        }

        .login-btn:active {
            transform: translateY(0);
        }

        .login-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
            transition: left 0.5s;
        }

        .login-btn:hover::before {
            left: 100%;
        }

        .divider {
            text-align: center;
            margin: 30px 0;
            position: relative;
            color: #999;
        }

        .divider::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 0;
            right: 0;
            height: 1px;
            background: #e1e8ed;
        }

        .divider span {
            background: white;
            padding: 0 15px;
        }

        .security-note {
            background: #f8f9fa;
            border: 1px solid #e1e8ed;
            border-radius: 8px;
            padding: 15px;
            text-align: center;
            margin-top: 20px;
        }

        .security-note .shield-icon {
            color: #28a745;
            margin-bottom: 5px;
        }

        .security-note p {
            font-size: 12px;
            color: #666;
            margin: 0;
        }

        @media (max-width: 480px) {
            .login-container {
                padding: 30px 20px;
                margin: 10px;
            }

            .logo h1 {
                font-size: 20px;
            }
        }